projects / deliverable / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Fix typo
[deliverable/binutils-gdb.git] / gas / config / tc-arm.c
1 /* tc-arm.c -- Assemble for the ARM
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
5 Modified by David Taylor (dtaylor@armltd.co.uk)
6 Cirrus coprocessor mods by Aldy Hernandez (aldyh@redhat.com)
7
8 This file is part of GAS, the GNU Assembler.
9
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to the Free
22 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 02111-1307, USA. */
24
25 #include <string.h>
26 #define NO_RELOC 0
27 #include "as.h"
28 #include "safe-ctype.h"
29
30 /* Need TARGET_CPU. */
31 #include "config.h"
32 #include "subsegs.h"
33 #include "obstack.h"
34 #include "symbols.h"
35 #include "listing.h"
36
37 #ifdef OBJ_ELF
38 #include "elf/arm.h"
39 #include "dwarf2dbg.h"
40 #endif
41
42 /* XXX Set this to 1 after the next binutils release */
43 #define WARN_DEPRECATED 0
44
45 /* The following bitmasks control CPU extensions: */
46 #define ARM_EXT_V1 0x00000001 /* All processors (core set). */
47 #define ARM_EXT_V2 0x00000002 /* Multiply instructions. */
48 #define ARM_EXT_V2S 0x00000004 /* SWP instructions. */
49 #define ARM_EXT_V3 0x00000008 /* MSR MRS. */
50 #define ARM_EXT_V3M 0x00000010 /* Allow long multiplies. */
51 #define ARM_EXT_V4 0x00000020 /* Allow half word loads. */
52 #define ARM_EXT_V4T 0x00000040 /* Thumb v1. */
53 #define ARM_EXT_V5 0x00000080 /* Allow CLZ, etc. */
54 #define ARM_EXT_V5T 0x00000100 /* Thumb v2. */
55 #define ARM_EXT_V5ExP 0x00000200 /* DSP core set. */
56 #define ARM_EXT_V5E 0x00000400 /* DSP Double transfers. */
57 #define ARM_EXT_V5J 0x00000800 /* Jazelle extension. */
58
59 /* Co-processor space extensions. */
60 #define ARM_CEXT_XSCALE 0x00800000 /* Allow MIA etc. */
61 #define ARM_CEXT_MAVERICK 0x00400000 /* Use Cirrus/DSP coprocessor. */
62
63 /* Architectures are the sum of the base and extensions. The ARM ARM (rev E)
64 defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
65 ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE. To these we add
66 three more to cover cores prior to ARM6. Finally, there are cores which
67 implement further extensions in the co-processor space. */
68 #define ARM_ARCH_V1 ARM_EXT_V1
69 #define ARM_ARCH_V2 (ARM_ARCH_V1 | ARM_EXT_V2)
70 #define ARM_ARCH_V2S (ARM_ARCH_V2 | ARM_EXT_V2S)
71 #define ARM_ARCH_V3 (ARM_ARCH_V2S | ARM_EXT_V3)
72 #define ARM_ARCH_V3M (ARM_ARCH_V3 | ARM_EXT_V3M)
73 #define ARM_ARCH_V4xM (ARM_ARCH_V3 | ARM_EXT_V4)
74 #define ARM_ARCH_V4 (ARM_ARCH_V3M | ARM_EXT_V4)
75 #define ARM_ARCH_V4TxM (ARM_ARCH_V4xM | ARM_EXT_V4T)
76 #define ARM_ARCH_V4T (ARM_ARCH_V4 | ARM_EXT_V4T)
77 #define ARM_ARCH_V5xM (ARM_ARCH_V4xM | ARM_EXT_V5)
78 #define ARM_ARCH_V5 (ARM_ARCH_V4 | ARM_EXT_V5)
79 #define ARM_ARCH_V5TxM (ARM_ARCH_V5xM | ARM_EXT_V4T | ARM_EXT_V5T)
80 #define ARM_ARCH_V5T (ARM_ARCH_V5 | ARM_EXT_V4T | ARM_EXT_V5T)
81 #define ARM_ARCH_V5TExP (ARM_ARCH_V5T | ARM_EXT_V5ExP)
82 #define ARM_ARCH_V5TE (ARM_ARCH_V5TExP | ARM_EXT_V5E)
83 #define ARM_ARCH_V5TEJ (ARM_ARCH_V5TE | ARM_EXT_V5J)
84
85 /* Processors with specific extensions in the co-processor space. */
86 #define ARM_ARCH_XSCALE (ARM_ARCH_V5TE | ARM_CEXT_XSCALE)
87
88 /* Some useful combinations: */
89 #define ARM_ANY 0x0000ffff /* Any basic core. */
90 #define ARM_ALL 0x00ffffff /* Any core + co-processor */
91 #define CPROC_ANY 0x00ff0000 /* Any co-processor */
92 #define FPU_ANY 0xff000000 /* Note this is ~ARM_ALL. */
93
94
95 #define FPU_FPA_EXT_V1 0x80000000 /* Base FPA instruction set. */
96 #define FPU_FPA_EXT_V2 0x40000000 /* LFM/SFM. */
97 #define FPU_VFP_EXT_NONE 0x20000000 /* Use VFP word-ordering. */
98 #define FPU_VFP_EXT_V1xD 0x10000000 /* Base VFP instruction set. */
99 #define FPU_VFP_EXT_V1 0x08000000 /* Double-precision insns. */
100 #define FPU_VFP_EXT_V2 0x04000000 /* ARM10E VFPr1. */
101 #define FPU_NONE 0
102
103 #define FPU_ARCH_FPE FPU_FPA_EXT_V1
104 #define FPU_ARCH_FPA (FPU_ARCH_FPE | FPU_FPA_EXT_V2)
105
106 #define FPU_ARCH_VFP FPU_VFP_EXT_NONE
107 #define FPU_ARCH_VFP_V1xD (FPU_VFP_EXT_V1xD | FPU_VFP_EXT_NONE)
108 #define FPU_ARCH_VFP_V1 (FPU_ARCH_VFP_V1xD | FPU_VFP_EXT_V1)
109 #define FPU_ARCH_VFP_V2 (FPU_ARCH_VFP_V1 | FPU_VFP_EXT_V2)
110
111 /* Types of processor to assemble for. */
112 #define ARM_1 ARM_ARCH_V1
113 #define ARM_2 ARM_ARCH_V2
114 #define ARM_3 ARM_ARCH_V2S
115 #define ARM_250 ARM_ARCH_V2S
116 #define ARM_6 ARM_ARCH_V3
117 #define ARM_7 ARM_ARCH_V3
118 #define ARM_8 ARM_ARCH_V4
119 #define ARM_9 ARM_ARCH_V4T
120 #define ARM_STRONG ARM_ARCH_V4
121 #define ARM_CPU_MASK 0x0000000f /* XXX? */
122
123 #ifndef CPU_DEFAULT
124 #if defined __XSCALE__
125 #define CPU_DEFAULT (ARM_ARCH_XSCALE)
126 #else
127 #if defined __thumb__
128 #define CPU_DEFAULT (ARM_ARCH_V5T)
129 #else
130 #define CPU_DEFAULT ARM_ANY
131 #endif
132 #endif
133 #endif
134
135 /* For backwards compatibility we default to the FPA. */
136 #ifndef FPU_DEFAULT
137 #define FPU_DEFAULT FPU_ARCH_FPA
138 #endif
139
140 #define streq(a, b) (strcmp (a, b) == 0)
141 #define skip_whitespace(str) while (*(str) == ' ') ++(str)
142
143 static unsigned long cpu_variant;
144 static int target_oabi = 0;
145
146 /* Flags stored in private area of BFD structure. */
147 static int uses_apcs_26 = false;
148 static int atpcs = false;
149 static int support_interwork = false;
150 static int uses_apcs_float = false;
151 static int pic_code = false;
152
153 /* Variables that we set while parsing command-line options. Once all
154 options have been read we re-process these values to set the real
155 assembly flags. */
156 static int legacy_cpu = -1;
157 static int legacy_fpu = -1;
158
159 static int mcpu_cpu_opt = -1;
160 static int mcpu_fpu_opt = -1;
161 static int march_cpu_opt = -1;
162 static int march_fpu_opt = -1;
163 static int mfpu_opt = -1;
164
165 /* This array holds the chars that always start a comment. If the
166 pre-processor is disabled, these aren't very useful. */
167 const char comment_chars[] = "@";
168
169 /* This array holds the chars that only start a comment at the beginning of
170 a line. If the line seems to have the form '# 123 filename'
171 .line and .file directives will appear in the pre-processed output. */
172 /* Note that input_file.c hand checks for '#' at the beginning of the
173 first line of the input file. This is because the compiler outputs
174 #NO_APP at the beginning of its output. */
175 /* Also note that comments like this one will always work. */
176 const char line_comment_chars[] = "#";
177
178 const char line_separator_chars[] = ";";
179
180 /* Chars that can be used to separate mant
181 from exp in floating point numbers. */
182 const char EXP_CHARS[] = "eE";
183
184 /* Chars that mean this number is a floating point constant. */
185 /* As in 0f12.456 */
186 /* or 0d1.2345e12 */
187
188 const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
189
190 /* Prefix characters that indicate the start of an immediate
191 value. */
192 #define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
193
194 #ifdef OBJ_ELF
195 /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
196 symbolS * GOT_symbol;
197 #endif
198
199 /* Size of relocation record. */
200 const int md_reloc_size = 8;
201
202 /* 0: assemble for ARM,
203 1: assemble for Thumb,
204 2: assemble for Thumb even though target CPU does not support thumb
205 instructions. */
206 static int thumb_mode = 0;
207
208 typedef struct arm_fix
209 {
210 int thumb_mode;
211 } arm_fix_data;
212
213 struct arm_it
214 {
215 const char * error;
216 unsigned long instruction;
217 int size;
218 struct
219 {
220 bfd_reloc_code_real_type type;
221 expressionS exp;
222 int pc_rel;
223 } reloc;
224 };
225
226 struct arm_it inst;
227
228 enum asm_shift_index
229 {
230 SHIFT_LSL = 0,
231 SHIFT_LSR,
232 SHIFT_ASR,
233 SHIFT_ROR,
234 SHIFT_RRX
235 };
236
237 struct asm_shift_properties
238 {
239 enum asm_shift_index index;
240 unsigned long bit_field;
241 unsigned int allows_0 : 1;
242 unsigned int allows_32 : 1;
243 };
244
245 static const struct asm_shift_properties shift_properties [] =
246 {
247 { SHIFT_LSL, 0, 1, 0},
248 { SHIFT_LSR, 0x20, 0, 1},
249 { SHIFT_ASR, 0x40, 0, 1},
250 { SHIFT_ROR, 0x60, 0, 0},
251 { SHIFT_RRX, 0x60, 0, 0}
252 };
253
254 struct asm_shift_name
255 {
256 const char * name;
257 const struct asm_shift_properties * properties;
258 };
259
260 static const struct asm_shift_name shift_names [] =
261 {
262 { "asl", shift_properties + SHIFT_LSL },
263 { "lsl", shift_properties + SHIFT_LSL },
264 { "lsr", shift_properties + SHIFT_LSR },
265 { "asr", shift_properties + SHIFT_ASR },
266 { "ror", shift_properties + SHIFT_ROR },
267 { "rrx", shift_properties + SHIFT_RRX },
268 { "ASL", shift_properties + SHIFT_LSL },
269 { "LSL", shift_properties + SHIFT_LSL },
270 { "LSR", shift_properties + SHIFT_LSR },
271 { "ASR", shift_properties + SHIFT_ASR },
272 { "ROR", shift_properties + SHIFT_ROR },
273 { "RRX", shift_properties + SHIFT_RRX }
274 };
275
276 #define NO_SHIFT_RESTRICT 1
277 #define SHIFT_RESTRICT 0
278
279 #define NUM_FLOAT_VALS 8
280
281 const char * fp_const[] =
282 {
283 "0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0", 0
284 };
285
286 /* Number of littlenums required to hold an extended precision number. */
287 #define MAX_LITTLENUMS 6
288
289 LITTLENUM_TYPE fp_values[NUM_FLOAT_VALS][MAX_LITTLENUMS];
290
291 #define FAIL (-1)
292 #define SUCCESS (0)
293
294 /* Whether a Co-processor load/store operation accepts write-back forms. */
295 #define CP_WB_OK 1
296 #define CP_NO_WB 0
297
298 #define SUFF_S 1
299 #define SUFF_D 2
300 #define SUFF_E 3
301 #define SUFF_P 4
302
303 #define CP_T_X 0x00008000
304 #define CP_T_Y 0x00400000
305 #define CP_T_Pre 0x01000000
306 #define CP_T_UD 0x00800000
307 #define CP_T_WB 0x00200000
308
309 #define CONDS_BIT 0x00100000
310 #define LOAD_BIT 0x00100000
311
312 #define DOUBLE_LOAD_FLAG 0x00000001
313
314 struct asm_cond
315 {
316 const char * template;
317 unsigned long value;
318 };
319
320 #define COND_ALWAYS 0xe0000000
321 #define COND_MASK 0xf0000000
322
323 static const struct asm_cond conds[] =
324 {
325 {"eq", 0x00000000},
326 {"ne", 0x10000000},
327 {"cs", 0x20000000}, {"hs", 0x20000000},
328 {"cc", 0x30000000}, {"ul", 0x30000000}, {"lo", 0x30000000},
329 {"mi", 0x40000000},
330 {"pl", 0x50000000},
331 {"vs", 0x60000000},
332 {"vc", 0x70000000},
333 {"hi", 0x80000000},
334 {"ls", 0x90000000},
335 {"ge", 0xa0000000},
336 {"lt", 0xb0000000},
337 {"gt", 0xc0000000},
338 {"le", 0xd0000000},
339 {"al", 0xe0000000},
340 {"nv", 0xf0000000}
341 };
342
343 struct asm_psr
344 {
345 const char * template;
346 boolean cpsr;
347 unsigned long field;
348 };
349
350 /* The bit that distnguishes CPSR and SPSR. */
351 #define SPSR_BIT (1 << 22)
352
353 /* How many bits to shift the PSR_xxx bits up by. */
354 #define PSR_SHIFT 16
355
356 #define PSR_c (1 << 0)
357 #define PSR_x (1 << 1)
358 #define PSR_s (1 << 2)
359 #define PSR_f (1 << 3)
360
361 static const struct asm_psr psrs[] =
362 {
363 {"CPSR", true, PSR_c | PSR_f},
364 {"CPSR_all", true, PSR_c | PSR_f},
365 {"SPSR", false, PSR_c | PSR_f},
366 {"SPSR_all", false, PSR_c | PSR_f},
367 {"CPSR_flg", true, PSR_f},
368 {"CPSR_f", true, PSR_f},
369 {"SPSR_flg", false, PSR_f},
370 {"SPSR_f", false, PSR_f},
371 {"CPSR_c", true, PSR_c},
372 {"CPSR_ctl", true, PSR_c},
373 {"SPSR_c", false, PSR_c},
374 {"SPSR_ctl", false, PSR_c},
375 {"CPSR_x", true, PSR_x},
376 {"CPSR_s", true, PSR_s},
377 {"SPSR_x", false, PSR_x},
378 {"SPSR_s", false, PSR_s},
379 /* Combinations of flags. */
380 {"CPSR_fs", true, PSR_f | PSR_s},
381 {"CPSR_fx", true, PSR_f | PSR_x},
382 {"CPSR_fc", true, PSR_f | PSR_c},
383 {"CPSR_sf", true, PSR_s | PSR_f},
384 {"CPSR_sx", true, PSR_s | PSR_x},
385 {"CPSR_sc", true, PSR_s | PSR_c},
386 {"CPSR_xf", true, PSR_x | PSR_f},
387 {"CPSR_xs", true, PSR_x | PSR_s},
388 {"CPSR_xc", true, PSR_x | PSR_c},
389 {"CPSR_cf", true, PSR_c | PSR_f},
390 {"CPSR_cs", true, PSR_c | PSR_s},
391 {"CPSR_cx", true, PSR_c | PSR_x},
392 {"CPSR_fsx", true, PSR_f | PSR_s | PSR_x},
393 {"CPSR_fsc", true, PSR_f | PSR_s | PSR_c},
394 {"CPSR_fxs", true, PSR_f | PSR_x | PSR_s},
395 {"CPSR_fxc", true, PSR_f | PSR_x | PSR_c},
396 {"CPSR_fcs", true, PSR_f | PSR_c | PSR_s},
397 {"CPSR_fcx", true, PSR_f | PSR_c | PSR_x},
398 {"CPSR_sfx", true, PSR_s | PSR_f | PSR_x},
399 {"CPSR_sfc", true, PSR_s | PSR_f | PSR_c},
400 {"CPSR_sxf", true, PSR_s | PSR_x | PSR_f},
401 {"CPSR_sxc", true, PSR_s | PSR_x | PSR_c},
402 {"CPSR_scf", true, PSR_s | PSR_c | PSR_f},
403 {"CPSR_scx", true, PSR_s | PSR_c | PSR_x},
404 {"CPSR_xfs", true, PSR_x | PSR_f | PSR_s},
405 {"CPSR_xfc", true, PSR_x | PSR_f | PSR_c},
406 {"CPSR_xsf", true, PSR_x | PSR_s | PSR_f},
407 {"CPSR_xsc", true, PSR_x | PSR_s | PSR_c},
408 {"CPSR_xcf", true, PSR_x | PSR_c | PSR_f},
409 {"CPSR_xcs", true, PSR_x | PSR_c | PSR_s},
410 {"CPSR_cfs", true, PSR_c | PSR_f | PSR_s},
411 {"CPSR_cfx", true, PSR_c | PSR_f | PSR_x},
412 {"CPSR_csf", true, PSR_c | PSR_s | PSR_f},
413 {"CPSR_csx", true, PSR_c | PSR_s | PSR_x},
414 {"CPSR_cxf", true, PSR_c | PSR_x | PSR_f},
415 {"CPSR_cxs", true, PSR_c | PSR_x | PSR_s},
416 {"CPSR_fsxc", true, PSR_f | PSR_s | PSR_x | PSR_c},
417 {"CPSR_fscx", true, PSR_f | PSR_s | PSR_c | PSR_x},
418 {"CPSR_fxsc", true, PSR_f | PSR_x | PSR_s | PSR_c},
419 {"CPSR_fxcs", true, PSR_f | PSR_x | PSR_c | PSR_s},
420 {"CPSR_fcsx", true, PSR_f | PSR_c | PSR_s | PSR_x},
421 {"CPSR_fcxs", true, PSR_f | PSR_c | PSR_x | PSR_s},
422 {"CPSR_sfxc", true, PSR_s | PSR_f | PSR_x | PSR_c},
423 {"CPSR_sfcx", true, PSR_s | PSR_f | PSR_c | PSR_x},
424 {"CPSR_sxfc", true, PSR_s | PSR_x | PSR_f | PSR_c},
425 {"CPSR_sxcf", true, PSR_s | PSR_x | PSR_c | PSR_f},
426 {"CPSR_scfx", true, PSR_s | PSR_c | PSR_f | PSR_x},
427 {"CPSR_scxf", true, PSR_s | PSR_c | PSR_x | PSR_f},
428 {"CPSR_xfsc", true, PSR_x | PSR_f | PSR_s | PSR_c},
429 {"CPSR_xfcs", true, PSR_x | PSR_f | PSR_c | PSR_s},
430 {"CPSR_xsfc", true, PSR_x | PSR_s | PSR_f | PSR_c},
431 {"CPSR_xscf", true, PSR_x | PSR_s | PSR_c | PSR_f},
432 {"CPSR_xcfs", true, PSR_x | PSR_c | PSR_f | PSR_s},
433 {"CPSR_xcsf", true, PSR_x | PSR_c | PSR_s | PSR_f},
434 {"CPSR_cfsx", true, PSR_c | PSR_f | PSR_s | PSR_x},
435 {"CPSR_cfxs", true, PSR_c | PSR_f | PSR_x | PSR_s},
436 {"CPSR_csfx", true, PSR_c | PSR_s | PSR_f | PSR_x},
437 {"CPSR_csxf", true, PSR_c | PSR_s | PSR_x | PSR_f},
438 {"CPSR_cxfs", true, PSR_c | PSR_x | PSR_f | PSR_s},
439 {"CPSR_cxsf", true, PSR_c | PSR_x | PSR_s | PSR_f},
440 {"SPSR_fs", false, PSR_f | PSR_s},
441 {"SPSR_fx", false, PSR_f | PSR_x},
442 {"SPSR_fc", false, PSR_f | PSR_c},
443 {"SPSR_sf", false, PSR_s | PSR_f},
444 {"SPSR_sx", false, PSR_s | PSR_x},
445 {"SPSR_sc", false, PSR_s | PSR_c},
446 {"SPSR_xf", false, PSR_x | PSR_f},
447 {"SPSR_xs", false, PSR_x | PSR_s},
448 {"SPSR_xc", false, PSR_x | PSR_c},
449 {"SPSR_cf", false, PSR_c | PSR_f},
450 {"SPSR_cs", false, PSR_c | PSR_s},
451 {"SPSR_cx", false, PSR_c | PSR_x},
452 {"SPSR_fsx", false, PSR_f | PSR_s | PSR_x},
453 {"SPSR_fsc", false, PSR_f | PSR_s | PSR_c},
454 {"SPSR_fxs", false, PSR_f | PSR_x | PSR_s},
455 {"SPSR_fxc", false, PSR_f | PSR_x | PSR_c},
456 {"SPSR_fcs", false, PSR_f | PSR_c | PSR_s},
457 {"SPSR_fcx", false, PSR_f | PSR_c | PSR_x},
458 {"SPSR_sfx", false, PSR_s | PSR_f | PSR_x},
459 {"SPSR_sfc", false, PSR_s | PSR_f | PSR_c},
460 {"SPSR_sxf", false, PSR_s | PSR_x | PSR_f},
461 {"SPSR_sxc", false, PSR_s | PSR_x | PSR_c},
462 {"SPSR_scf", false, PSR_s | PSR_c | PSR_f},
463 {"SPSR_scx", false, PSR_s | PSR_c | PSR_x},
464 {"SPSR_xfs", false, PSR_x | PSR_f | PSR_s},
465 {"SPSR_xfc", false, PSR_x | PSR_f | PSR_c},
466 {"SPSR_xsf", false, PSR_x | PSR_s | PSR_f},
467 {"SPSR_xsc", false, PSR_x | PSR_s | PSR_c},
468 {"SPSR_xcf", false, PSR_x | PSR_c | PSR_f},
469 {"SPSR_xcs", false, PSR_x | PSR_c | PSR_s},
470 {"SPSR_cfs", false, PSR_c | PSR_f | PSR_s},
471 {"SPSR_cfx", false, PSR_c | PSR_f | PSR_x},
472 {"SPSR_csf", false, PSR_c | PSR_s | PSR_f},
473 {"SPSR_csx", false, PSR_c | PSR_s | PSR_x},
474 {"SPSR_cxf", false, PSR_c | PSR_x | PSR_f},
475 {"SPSR_cxs", false, PSR_c | PSR_x | PSR_s},
476 {"SPSR_fsxc", false, PSR_f | PSR_s | PSR_x | PSR_c},
477 {"SPSR_fscx", false, PSR_f | PSR_s | PSR_c | PSR_x},
478 {"SPSR_fxsc", false, PSR_f | PSR_x | PSR_s | PSR_c},
479 {"SPSR_fxcs", false, PSR_f | PSR_x | PSR_c | PSR_s},
480 {"SPSR_fcsx", false, PSR_f | PSR_c | PSR_s | PSR_x},
481 {"SPSR_fcxs", false, PSR_f | PSR_c | PSR_x | PSR_s},
482 {"SPSR_sfxc", false, PSR_s | PSR_f | PSR_x | PSR_c},
483 {"SPSR_sfcx", false, PSR_s | PSR_f | PSR_c | PSR_x},
484 {"SPSR_sxfc", false, PSR_s | PSR_x | PSR_f | PSR_c},
485 {"SPSR_sxcf", false, PSR_s | PSR_x | PSR_c | PSR_f},
486 {"SPSR_scfx", false, PSR_s | PSR_c | PSR_f | PSR_x},
487 {"SPSR_scxf", false, PSR_s | PSR_c | PSR_x | PSR_f},
488 {"SPSR_xfsc", false, PSR_x | PSR_f | PSR_s | PSR_c},
489 {"SPSR_xfcs", false, PSR_x | PSR_f | PSR_c | PSR_s},
490 {"SPSR_xsfc", false, PSR_x | PSR_s | PSR_f | PSR_c},
491 {"SPSR_xscf", false, PSR_x | PSR_s | PSR_c | PSR_f},
492 {"SPSR_xcfs", false, PSR_x | PSR_c | PSR_f | PSR_s},
493 {"SPSR_xcsf", false, PSR_x | PSR_c | PSR_s | PSR_f},
494 {"SPSR_cfsx", false, PSR_c | PSR_f | PSR_s | PSR_x},
495 {"SPSR_cfxs", false, PSR_c | PSR_f | PSR_x | PSR_s},
496 {"SPSR_csfx", false, PSR_c | PSR_s | PSR_f | PSR_x},
497 {"SPSR_csxf", false, PSR_c | PSR_s | PSR_x | PSR_f},
498 {"SPSR_cxfs", false, PSR_c | PSR_x | PSR_f | PSR_s},
499 {"SPSR_cxsf", false, PSR_c | PSR_x | PSR_s | PSR_f},
500 };
501
502 enum vfp_dp_reg_pos
503 {
504 VFP_REG_Dd, VFP_REG_Dm, VFP_REG_Dn
505 };
506
507 enum vfp_sp_reg_pos
508 {
509 VFP_REG_Sd, VFP_REG_Sm, VFP_REG_Sn
510 };
511
512 enum vfp_ldstm_type
513 {
514 VFP_LDSTMIA, VFP_LDSTMDB, VFP_LDSTMIAX, VFP_LDSTMDBX
515 };
516
517 /* VFP system registers. */
518 struct vfp_reg
519 {
520 const char *name;
521 unsigned long regno;
522 };
523
524 static const struct vfp_reg vfp_regs[] =
525 {
526 {"fpsid", 0x00000000},
527 {"FPSID", 0x00000000},
528 {"fpscr", 0x00010000},
529 {"FPSCR", 0x00010000},
530 {"fpexc", 0x00080000},
531 {"FPEXC", 0x00080000}
532 };
533
534 /* Structure for a hash table entry for a register. */
535 struct reg_entry
536 {
537 const char * name;
538 int number;
539 };
540
541 /* Some well known registers that we refer to directly elsewhere. */
542 #define REG_SP 13
543 #define REG_LR 14
544 #define REG_PC 15
545
546 /* These are the standard names. Users can add aliases with .req. */
547 /* Integer Register Numbers. */
548 static const struct reg_entry rn_table[] =
549 {
550 {"r0", 0}, {"r1", 1}, {"r2", 2}, {"r3", 3},
551 {"r4", 4}, {"r5", 5}, {"r6", 6}, {"r7", 7},
552 {"r8", 8}, {"r9", 9}, {"r10", 10}, {"r11", 11},
553 {"r12", 12}, {"r13", REG_SP}, {"r14", REG_LR}, {"r15", REG_PC},
554 /* ATPCS Synonyms. */
555 {"a1", 0}, {"a2", 1}, {"a3", 2}, {"a4", 3},
556 {"v1", 4}, {"v2", 5}, {"v3", 6}, {"v4", 7},
557 {"v5", 8}, {"v6", 9}, {"v7", 10}, {"v8", 11},
558 /* Well-known aliases. */
559 {"wr", 7},
560 {"sb", 9}, {"sl", 10}, {"fp", 11},
561 {"ip", 12}, {"sp", REG_SP}, {"lr", REG_LR}, {"pc", REG_PC},
562 {NULL, 0}
563 };
564
565 /* Co-processor Numbers. */
566 static const struct reg_entry cp_table[] =
567 {
568 {"p0", 0}, {"p1", 1}, {"p2", 2}, {"p3", 3},
569 {"p4", 4}, {"p5", 5}, {"p6", 6}, {"p7", 7},
570 {"p8", 8}, {"p9", 9}, {"p10", 10}, {"p11", 11},
571 {"p12", 12}, {"p13", 13}, {"p14", 14}, {"p15", 15},
572 {NULL, 0}
573 };
574
575 /* Co-processor Register Numbers. */
576 static const struct reg_entry cn_table[] =
577 {
578 {"c0", 0}, {"c1", 1}, {"c2", 2}, {"c3", 3},
579 {"c4", 4}, {"c5", 5}, {"c6", 6}, {"c7", 7},
580 {"c8", 8}, {"c9", 9}, {"c10", 10}, {"c11", 11},
581 {"c12", 12}, {"c13", 13}, {"c14", 14}, {"c15", 15},
582 /* Not really valid, but kept for back-wards compatibility. */
583 {"cr0", 0}, {"cr1", 1}, {"cr2", 2}, {"cr3", 3},
584 {"cr4", 4}, {"cr5", 5}, {"cr6", 6}, {"cr7", 7},
585 {"cr8", 8}, {"cr9", 9}, {"cr10", 10}, {"cr11", 11},
586 {"cr12", 12}, {"cr13", 13}, {"cr14", 14}, {"cr15", 15},
587 {NULL, 0}
588 };
589
590 /* FPA Registers. */
591 static const struct reg_entry fn_table[] =
592 {
593 {"f0", 0}, {"f1", 1}, {"f2", 2}, {"f3", 3},
594 {"f4", 4}, {"f5", 5}, {"f6", 6}, {"f7", 7},
595 {NULL, 0}
596 };
597
598 /* VFP SP Registers. */
599 static const struct reg_entry sn_table[] =
600 {
601 {"s0", 0}, {"s1", 1}, {"s2", 2}, {"s3", 3},
602 {"s4", 4}, {"s5", 5}, {"s6", 6}, {"s7", 7},
603 {"s8", 8}, {"s9", 9}, {"s10", 10}, {"s11", 11},
604 {"s12", 12}, {"s13", 13}, {"s14", 14}, {"s15", 15},
605 {"s16", 16}, {"s17", 17}, {"s18", 18}, {"s19", 19},
606 {"s20", 20}, {"s21", 21}, {"s22", 22}, {"s23", 23},
607 {"s24", 24}, {"s25", 25}, {"s26", 26}, {"s27", 27},
608 {"s28", 28}, {"s29", 29}, {"s30", 30}, {"s31", 31},
609 {NULL, 0}
610 };
611
612 /* VFP DP Registers. */
613 static const struct reg_entry dn_table[] =
614 {
615 {"d0", 0}, {"d1", 1}, {"d2", 2}, {"d3", 3},
616 {"d4", 4}, {"d5", 5}, {"d6", 6}, {"d7", 7},
617 {"d8", 8}, {"d9", 9}, {"d10", 10}, {"d11", 11},
618 {"d12", 12}, {"d13", 13}, {"d14", 14}, {"d15", 15},
619 {NULL, 0}
620 };
621
622 /* Maverick DSP coprocessor registers. */
623 static const struct reg_entry mav_mvf_table[] =
624 {
625 {"mvf0", 0}, {"mvf1", 1}, {"mvf2", 2}, {"mvf3", 3},
626 {"mvf4", 4}, {"mvf5", 5}, {"mvf6", 6}, {"mvf7", 7},
627 {"mvf8", 8}, {"mvf9", 9}, {"mvf10", 10}, {"mvf11", 11},
628 {"mvf12", 12}, {"mvf13", 13}, {"mvf14", 14}, {"mvf15", 15},
629 {NULL, 0}
630 };
631
632 static const struct reg_entry mav_mvd_table[] =
633 {
634 {"mvd0", 0}, {"mvd1", 1}, {"mvd2", 2}, {"mvd3", 3},
635 {"mvd4", 4}, {"mvd5", 5}, {"mvd6", 6}, {"mvd7", 7},
636 {"mvd8", 8}, {"mvd9", 9}, {"mvd10", 10}, {"mvd11", 11},
637 {"mvd12", 12}, {"mvd13", 13}, {"mvd14", 14}, {"mvd15", 15},
638 {NULL, 0}
639 };
640
641 static const struct reg_entry mav_mvfx_table[] =
642 {
643 {"mvfx0", 0}, {"mvfx1", 1}, {"mvfx2", 2}, {"mvfx3", 3},
644 {"mvfx4", 4}, {"mvfx5", 5}, {"mvfx6", 6}, {"mvfx7", 7},
645 {"mvfx8", 8}, {"mvfx9", 9}, {"mvfx10", 10}, {"mvfx11", 11},
646 {"mvfx12", 12}, {"mvfx13", 13}, {"mvfx14", 14}, {"mvfx15", 15},
647 {NULL, 0}
648 };
649
650 static const struct reg_entry mav_mvdx_table[] =
651 {
652 {"mvdx0", 0}, {"mvdx1", 1}, {"mvdx2", 2}, {"mvdx3", 3},
653 {"mvdx4", 4}, {"mvdx5", 5}, {"mvdx6", 6}, {"mvdx7", 7},
654 {"mvdx8", 8}, {"mvdx9", 9}, {"mvdx10", 10}, {"mvdx11", 11},
655 {"mvdx12", 12}, {"mvdx13", 13}, {"mvdx14", 14}, {"mvdx15", 15},
656 {NULL, 0}
657 };
658
659 static const struct reg_entry mav_mvax_table[] =
660 {
661 {"mvax0", 0}, {"mvax1", 1}, {"mvax2", 2}, {"mvax3", 3},
662 {NULL, 0}
663 };
664
665 static const struct reg_entry mav_dspsc_table[] =
666 {
667 {"dspsc", 0},
668 {NULL, 0}
669 };
670
671 struct reg_map
672 {
673 const struct reg_entry *names;
674 int max_regno;
675 struct hash_control *htab;
676 const char *expected;
677 };
678
679 struct reg_map all_reg_maps[] =
680 {
681 {rn_table, 15, NULL, N_("ARM register expected")},
682 {cp_table, 15, NULL, N_("bad or missing co-processor number")},
683 {cn_table, 15, NULL, N_("co-processor register expected")},
684 {fn_table, 7, NULL, N_("FPA register expected")},
685 {sn_table, 31, NULL, N_("VFP single precision register expected")},
686 {dn_table, 15, NULL, N_("VFP double precision register expected")},
687 {mav_mvf_table, 15, NULL, N_("Maverick MVF register expected")},
688 {mav_mvd_table, 15, NULL, N_("Maverick MVD register expected")},
689 {mav_mvfx_table, 15, NULL, N_("Maverick MVFX register expected")},
690 {mav_mvdx_table, 15, NULL, N_("Maverick MVFX register expected")},
691 {mav_mvax_table, 3, NULL, N_("Maverick MVAX register expected")},
692 {mav_dspsc_table, 0, NULL, N_("Maverick DSPSC register expected")},
693 };
694
695 /* Enumeration matching entries in table above. */
696 enum arm_reg_type
697 {
698 REG_TYPE_RN = 0,
699 #define REG_TYPE_FIRST REG_TYPE_RN
700 REG_TYPE_CP = 1,
701 REG_TYPE_CN = 2,
702 REG_TYPE_FN = 3,
703 REG_TYPE_SN = 4,
704 REG_TYPE_DN = 5,
705 REG_TYPE_MVF = 6,
706 REG_TYPE_MVD = 7,
707 REG_TYPE_MVFX = 8,
708 REG_TYPE_MVDX = 9,
709 REG_TYPE_MVAX = 10,
710 REG_TYPE_DSPSC = 11,
711
712 REG_TYPE_MAX = 12
713 };
714
715 /* Functions called by parser. */
716 /* ARM instructions. */
717 static void do_arit PARAMS ((char *));
718 static void do_cmp PARAMS ((char *));
719 static void do_mov PARAMS ((char *));
720 static void do_ldst PARAMS ((char *));
721 static void do_ldstt PARAMS ((char *));
722 static void do_ldmstm PARAMS ((char *));
723 static void do_branch PARAMS ((char *));
724 static void do_swi PARAMS ((char *));
725
726 /* Pseudo Op codes. */
727 static void do_adr PARAMS ((char *));
728 static void do_adrl PARAMS ((char *));
729 static void do_empty PARAMS ((char *));
730
731 /* ARM v2. */
732 static void do_mul PARAMS ((char *));
733 static void do_mla PARAMS ((char *));
734
735 /* ARM v2S. */
736 static void do_swap PARAMS ((char *));
737
738 /* ARM v3. */
739 static void do_msr PARAMS ((char *));
740 static void do_mrs PARAMS ((char *));
741
742 /* ARM v3M. */
743 static void do_mull PARAMS ((char *));
744
745 /* ARM v4. */
746 static void do_ldstv4 PARAMS ((char *));
747
748 /* ARM v4T. */
749 static void do_bx PARAMS ((char *));
750
751 /* ARM v5T. */
752 static void do_blx PARAMS ((char *));
753 static void do_bkpt PARAMS ((char *));
754 static void do_clz PARAMS ((char *));
755 static void do_lstc2 PARAMS ((char *));
756 static void do_cdp2 PARAMS ((char *));
757 static void do_co_reg2 PARAMS ((char *));
758
759 /* ARM v5TExP. */
760 static void do_smla PARAMS ((char *));
761 static void do_smlal PARAMS ((char *));
762 static void do_smul PARAMS ((char *));
763 static void do_qadd PARAMS ((char *));
764
765 /* ARM v5TE. */
766 static void do_pld PARAMS ((char *));
767 static void do_ldrd PARAMS ((char *));
768 static void do_co_reg2c PARAMS ((char *));
769
770 /* ARM v5TEJ. */
771 static void do_bxj PARAMS ((char *));
772
773 /* Coprocessor Instructions. */
774 static void do_cdp PARAMS ((char *));
775 static void do_lstc PARAMS ((char *));
776 static void do_co_reg PARAMS ((char *));
777
778 /* FPA instructions. */
779 static void do_fpa_ctrl PARAMS ((char *));
780 static void do_fpa_ldst PARAMS ((char *));
781 static void do_fpa_ldmstm PARAMS ((char *));
782 static void do_fpa_dyadic PARAMS ((char *));
783 static void do_fpa_monadic PARAMS ((char *));
784 static void do_fpa_cmp PARAMS ((char *));
785 static void do_fpa_from_reg PARAMS ((char *));
786 static void do_fpa_to_reg PARAMS ((char *));
787
788 /* VFP instructions. */
789 static void do_vfp_sp_monadic PARAMS ((char *));
790 static void do_vfp_dp_monadic PARAMS ((char *));
791 static void do_vfp_sp_dyadic PARAMS ((char *));
792 static void do_vfp_dp_dyadic PARAMS ((char *));
793 static void do_vfp_reg_from_sp PARAMS ((char *));
794 static void do_vfp_sp_from_reg PARAMS ((char *));
795 static void do_vfp_sp_reg2 PARAMS ((char *));
796 static void do_vfp_reg_from_dp PARAMS ((char *));
797 static void do_vfp_reg2_from_dp PARAMS ((char *));
798 static void do_vfp_dp_from_reg PARAMS ((char *));
799 static void do_vfp_dp_from_reg2 PARAMS ((char *));
800 static void do_vfp_reg_from_ctrl PARAMS ((char *));
801 static void do_vfp_ctrl_from_reg PARAMS ((char *));
802 static void do_vfp_sp_ldst PARAMS ((char *));
803 static void do_vfp_dp_ldst PARAMS ((char *));
804 static void do_vfp_sp_ldstmia PARAMS ((char *));
805 static void do_vfp_sp_ldstmdb PARAMS ((char *));
806 static void do_vfp_dp_ldstmia PARAMS ((char *));
807 static void do_vfp_dp_ldstmdb PARAMS ((char *));
808 static void do_vfp_xp_ldstmia PARAMS ((char *));
809 static void do_vfp_xp_ldstmdb PARAMS ((char *));
810 static void do_vfp_sp_compare_z PARAMS ((char *));
811 static void do_vfp_dp_compare_z PARAMS ((char *));
812 static void do_vfp_dp_sp_cvt PARAMS ((char *));
813 static void do_vfp_sp_dp_cvt PARAMS ((char *));
814
815 /* XScale. */
816 static void do_xsc_mia PARAMS ((char *));
817 static void do_xsc_mar PARAMS ((char *));
818 static void do_xsc_mra PARAMS ((char *));
819
820 /* Maverick. */
821 static void do_mav_binops PARAMS ((char *, int, enum arm_reg_type,
822 enum arm_reg_type));
823 static void do_mav_binops_1a PARAMS ((char *));
824 static void do_mav_binops_1b PARAMS ((char *));
825 static void do_mav_binops_1c PARAMS ((char *));
826 static void do_mav_binops_1d PARAMS ((char *));
827 static void do_mav_binops_1e PARAMS ((char *));
828 static void do_mav_binops_1f PARAMS ((char *));
829 static void do_mav_binops_1g PARAMS ((char *));
830 static void do_mav_binops_1h PARAMS ((char *));
831 static void do_mav_binops_1i PARAMS ((char *));
832 static void do_mav_binops_1j PARAMS ((char *));
833 static void do_mav_binops_1k PARAMS ((char *));
834 static void do_mav_binops_1l PARAMS ((char *));
835 static void do_mav_binops_1m PARAMS ((char *));
836 static void do_mav_binops_1n PARAMS ((char *));
837 static void do_mav_binops_1o PARAMS ((char *));
838 static void do_mav_binops_2a PARAMS ((char *));
839 static void do_mav_binops_2b PARAMS ((char *));
840 static void do_mav_binops_2c PARAMS ((char *));
841 static void do_mav_binops_3a PARAMS ((char *));
842 static void do_mav_binops_3b PARAMS ((char *));
843 static void do_mav_binops_3c PARAMS ((char *));
844 static void do_mav_binops_3d PARAMS ((char *));
845 static void do_mav_triple PARAMS ((char *, int, enum arm_reg_type,
846 enum arm_reg_type,
847 enum arm_reg_type));
848 static void do_mav_triple_4a PARAMS ((char *));
849 static void do_mav_triple_4b PARAMS ((char *));
850 static void do_mav_triple_5a PARAMS ((char *));
851 static void do_mav_triple_5b PARAMS ((char *));
852 static void do_mav_triple_5c PARAMS ((char *));
853 static void do_mav_triple_5d PARAMS ((char *));
854 static void do_mav_triple_5e PARAMS ((char *));
855 static void do_mav_triple_5f PARAMS ((char *));
856 static void do_mav_triple_5g PARAMS ((char *));
857 static void do_mav_triple_5h PARAMS ((char *));
858 static void do_mav_quad PARAMS ((char *, int, enum arm_reg_type,
859 enum arm_reg_type,
860 enum arm_reg_type,
861 enum arm_reg_type));
862 static void do_mav_quad_6a PARAMS ((char *));
863 static void do_mav_quad_6b PARAMS ((char *));
864 static void do_mav_dspsc_1 PARAMS ((char *));
865 static void do_mav_dspsc_2 PARAMS ((char *));
866 static void do_mav_shift PARAMS ((char *, enum arm_reg_type,
867 enum arm_reg_type));
868 static void do_mav_shift_1 PARAMS ((char *));
869 static void do_mav_shift_2 PARAMS ((char *));
870 static void do_mav_ldst PARAMS ((char *, enum arm_reg_type));
871 static void do_mav_ldst_1 PARAMS ((char *));
872 static void do_mav_ldst_2 PARAMS ((char *));
873 static void do_mav_ldst_3 PARAMS ((char *));
874 static void do_mav_ldst_4 PARAMS ((char *));
875
876 static int mav_reg_required_here PARAMS ((char **, int,
877 enum arm_reg_type));
878 static int mav_parse_offset PARAMS ((char **, int *));
879
880 static void fix_new_arm PARAMS ((fragS *, int, short, expressionS *,
881 int, int));
882 static int arm_reg_parse PARAMS ((char **, struct hash_control *));
883 static enum arm_reg_type arm_reg_parse_any PARAMS ((char *));
884 static const struct asm_psr * arm_psr_parse PARAMS ((char **));
885 static void symbol_locate PARAMS ((symbolS *, const char *, segT, valueT,
886 fragS *));
887 static int add_to_lit_pool PARAMS ((void));
888 static unsigned validate_immediate PARAMS ((unsigned));
889 static unsigned validate_immediate_twopart PARAMS ((unsigned int,
890 unsigned int *));
891 static int validate_offset_imm PARAMS ((unsigned int, int));
892 static void opcode_select PARAMS ((int));
893 static void end_of_line PARAMS ((char *));
894 static int reg_required_here PARAMS ((char **, int));
895 static int psr_required_here PARAMS ((char **));
896 static int co_proc_number PARAMS ((char **));
897 static int cp_opc_expr PARAMS ((char **, int, int));
898 static int cp_reg_required_here PARAMS ((char **, int));
899 static int fp_reg_required_here PARAMS ((char **, int));
900 static int vfp_sp_reg_required_here PARAMS ((char **, enum vfp_sp_reg_pos));
901 static int vfp_dp_reg_required_here PARAMS ((char **, enum vfp_dp_reg_pos));
902 static void vfp_sp_ldstm PARAMS ((char *, enum vfp_ldstm_type));
903 static void vfp_dp_ldstm PARAMS ((char *, enum vfp_ldstm_type));
904 static long vfp_sp_reg_list PARAMS ((char **, enum vfp_sp_reg_pos));
905 static long vfp_dp_reg_list PARAMS ((char **));
906 static int vfp_psr_required_here PARAMS ((char **str));
907 static const struct vfp_reg *vfp_psr_parse PARAMS ((char **str));
908 static int cp_address_offset PARAMS ((char **));
909 static int cp_address_required_here PARAMS ((char **, int));
910 static int my_get_float_expression PARAMS ((char **));
911 static int skip_past_comma PARAMS ((char **));
912 static int walk_no_bignums PARAMS ((symbolS *));
913 static int negate_data_op PARAMS ((unsigned long *, unsigned long));
914 static int data_op2 PARAMS ((char **));
915 static int fp_op2 PARAMS ((char **));
916 static long reg_list PARAMS ((char **));
917 static void thumb_load_store PARAMS ((char *, int, int));
918 static int decode_shift PARAMS ((char **, int));
919 static int ldst_extend PARAMS ((char **));
920 static int ldst_extend_v4 PARAMS ((char **));
921 static void thumb_add_sub PARAMS ((char *, int));
922 static void insert_reg PARAMS ((const struct reg_entry *,
923 struct hash_control *));
924 static void thumb_shift PARAMS ((char *, int));
925 static void thumb_mov_compare PARAMS ((char *, int));
926 static void build_arm_ops_hsh PARAMS ((void));
927 static void set_constant_flonums PARAMS ((void));
928 static valueT md_chars_to_number PARAMS ((char *, int));
929 static void build_reg_hsh PARAMS ((struct reg_map *));
930 static void insert_reg_alias PARAMS ((char *, int, struct hash_control *));
931 static int create_register_alias PARAMS ((char *, char *));
932 static void output_inst PARAMS ((const char *));
933 static int accum0_required_here PARAMS ((char **));
934 static int ld_mode_required_here PARAMS ((char **));
935 static void do_branch25 PARAMS ((char *));
936 static symbolS * find_real_start PARAMS ((symbolS *));
937 #ifdef OBJ_ELF
938 static bfd_reloc_code_real_type arm_parse_reloc PARAMS ((void));
939 #endif
940
941 /* ARM instructions take 4bytes in the object file, Thumb instructions
942 take 2: */
943 #define INSN_SIZE 4
944
945 /* "INSN<cond> X,Y" where X:bit12, Y:bit16. */
946 #define MAV_MODE1 0x100c
947
948 /* "INSN<cond> X,Y" where X:bit16, Y:bit12. */
949 #define MAV_MODE2 0x0c10
950
951 /* "INSN<cond> X,Y" where X:0, Y:bit16. */
952 #define MAV_MODE3 0x1000
953
954 /* "INSN<cond> X,Y,Z" where X:16, Y:0, Z:12. */
955 #define MAV_MODE4 0x0c0010
956
957 /* "INSN<cond> X,Y,Z" where X:12, Y:16, Z:0. */
958 #define MAV_MODE5 0x00100c
959
960 /* "INSN<cond> W,X,Y,Z" where W:5, X:12, Y:16, Z:0. */
961 #define MAV_MODE6 0x00100c05
962
963 struct asm_opcode
964 {
965 /* Basic string to match. */
966 const char * template;
967
968 /* Basic instruction code. */
969 unsigned long value;
970
971 /* Offset into the template where the condition code (if any) will be.
972 If zero, then the instruction is never conditional. */
973 unsigned cond_offset;
974
975 /* Which architecture variant provides this instruction. */
976 unsigned long variant;
977
978 /* Function to call to parse args. */
979 void (* parms) PARAMS ((char *));
980 };
981
982 static const struct asm_opcode insns[] =
983 {
984 /* Core ARM Instructions. */
985 {"and", 0xe0000000, 3, ARM_EXT_V1, do_arit},
986 {"ands", 0xe0100000, 3, ARM_EXT_V1, do_arit},
987 {"eor", 0xe0200000, 3, ARM_EXT_V1, do_arit},
988 {"eors", 0xe0300000, 3, ARM_EXT_V1, do_arit},
989 {"sub", 0xe0400000, 3, ARM_EXT_V1, do_arit},
990 {"subs", 0xe0500000, 3, ARM_EXT_V1, do_arit},
991 {"rsb", 0xe0600000, 3, ARM_EXT_V1, do_arit},
992 {"rsbs", 0xe0700000, 3, ARM_EXT_V1, do_arit},
993 {"add", 0xe0800000, 3, ARM_EXT_V1, do_arit},
994 {"adds", 0xe0900000, 3, ARM_EXT_V1, do_arit},
995 {"adc", 0xe0a00000, 3, ARM_EXT_V1, do_arit},
996 {"adcs", 0xe0b00000, 3, ARM_EXT_V1, do_arit},
997 {"sbc", 0xe0c00000, 3, ARM_EXT_V1, do_arit},
998 {"sbcs", 0xe0d00000, 3, ARM_EXT_V1, do_arit},
999 {"rsc", 0xe0e00000, 3, ARM_EXT_V1, do_arit},
1000 {"rscs", 0xe0f00000, 3, ARM_EXT_V1, do_arit},
1001 {"orr", 0xe1800000, 3, ARM_EXT_V1, do_arit},
1002 {"orrs", 0xe1900000, 3, ARM_EXT_V1, do_arit},
1003 {"bic", 0xe1c00000, 3, ARM_EXT_V1, do_arit},
1004 {"bics", 0xe1d00000, 3, ARM_EXT_V1, do_arit},
1005
1006 {"tst", 0xe1100000, 3, ARM_EXT_V1, do_cmp},
1007 {"tsts", 0xe1100000, 3, ARM_EXT_V1, do_cmp},
1008 {"tstp", 0xe110f000, 3, ARM_EXT_V1, do_cmp},
1009 {"teq", 0xe1300000, 3, ARM_EXT_V1, do_cmp},
1010 {"teqs", 0xe1300000, 3, ARM_EXT_V1, do_cmp},
1011 {"teqp", 0xe130f000, 3, ARM_EXT_V1, do_cmp},
1012 {"cmp", 0xe1500000, 3, ARM_EXT_V1, do_cmp},
1013 {"cmps", 0xe1500000, 3, ARM_EXT_V1, do_cmp},
1014 {"cmpp", 0xe150f000, 3, ARM_EXT_V1, do_cmp},
1015 {"cmn", 0xe1700000, 3, ARM_EXT_V1, do_cmp},
1016 {"cmns", 0xe1700000, 3, ARM_EXT_V1, do_cmp},
1017 {"cmnp", 0xe170f000, 3, ARM_EXT_V1, do_cmp},
1018
1019 {"mov", 0xe1a00000, 3, ARM_EXT_V1, do_mov},
1020 {"movs", 0xe1b00000, 3, ARM_EXT_V1, do_mov},
1021 {"mvn", 0xe1e00000, 3, ARM_EXT_V1, do_mov},
1022 {"mvns", 0xe1f00000, 3, ARM_EXT_V1, do_mov},
1023
1024 {"ldr", 0xe4100000, 3, ARM_EXT_V1, do_ldst},
1025 {"ldrb", 0xe4500000, 3, ARM_EXT_V1, do_ldst},
1026 {"ldrt", 0xe4300000, 3, ARM_EXT_V1, do_ldstt},
1027 {"ldrbt", 0xe4700000, 3, ARM_EXT_V1, do_ldstt},
1028 {"str", 0xe4000000, 3, ARM_EXT_V1, do_ldst},
1029 {"strb", 0xe4400000, 3, ARM_EXT_V1, do_ldst},
1030 {"strt", 0xe4200000, 3, ARM_EXT_V1, do_ldstt},
1031 {"strbt", 0xe4600000, 3, ARM_EXT_V1, do_ldstt},
1032
1033 {"stmia", 0xe8800000, 3, ARM_EXT_V1, do_ldmstm},
1034 {"stmib", 0xe9800000, 3, ARM_EXT_V1, do_ldmstm},
1035 {"stmda", 0xe8000000, 3, ARM_EXT_V1, do_ldmstm},
1036 {"stmdb", 0xe9000000, 3, ARM_EXT_V1, do_ldmstm},
1037 {"stmfd", 0xe9000000, 3, ARM_EXT_V1, do_ldmstm},
1038 {"stmfa", 0xe9800000, 3, ARM_EXT_V1, do_ldmstm},
1039 {"stmea", 0xe8800000, 3, ARM_EXT_V1, do_ldmstm},
1040 {"stmed", 0xe8000000, 3, ARM_EXT_V1, do_ldmstm},
1041
1042 {"ldmia", 0xe8900000, 3, ARM_EXT_V1, do_ldmstm},
1043 {"ldmib", 0xe9900000, 3, ARM_EXT_V1, do_ldmstm},
1044 {"ldmda", 0xe8100000, 3, ARM_EXT_V1, do_ldmstm},
1045 {"ldmdb", 0xe9100000, 3, ARM_EXT_V1, do_ldmstm},
1046 {"ldmfd", 0xe8900000, 3, ARM_EXT_V1, do_ldmstm},
1047 {"ldmfa", 0xe8100000, 3, ARM_EXT_V1, do_ldmstm},
1048 {"ldmea", 0xe9100000, 3, ARM_EXT_V1, do_ldmstm},
1049 {"ldmed", 0xe9900000, 3, ARM_EXT_V1, do_ldmstm},
1050
1051 {"swi", 0xef000000, 3, ARM_EXT_V1, do_swi},
1052 #ifdef TE_WINCE
1053 /* XXX This is the wrong place to do this. Think multi-arch. */
1054 {"bl", 0xeb000000, 2, ARM_EXT_V1, do_branch},
1055 {"b", 0xea000000, 1, ARM_EXT_V1, do_branch},
1056 #else
1057 {"bl", 0xebfffffe, 2, ARM_EXT_V1, do_branch},
1058 {"b", 0xeafffffe, 1, ARM_EXT_V1, do_branch},
1059 #endif
1060
1061 /* Pseudo ops. */
1062 {"adr", 0xe28f0000, 3, ARM_EXT_V1, do_adr},
1063 {"adrl", 0xe28f0000, 3, ARM_EXT_V1, do_adrl},
1064 {"nop", 0xe1a00000, 3, ARM_EXT_V1, do_empty},
1065
1066 /* ARM 2 multiplies. */
1067 {"mul", 0xe0000090, 3, ARM_EXT_V2, do_mul},
1068 {"muls", 0xe0100090, 3, ARM_EXT_V2, do_mul},
1069 {"mla", 0xe0200090, 3, ARM_EXT_V2, do_mla},
1070 {"mlas", 0xe0300090, 3, ARM_EXT_V2, do_mla},
1071
1072 /* Generic copressor instructions. */
1073 {"cdp", 0xee000000, 3, ARM_EXT_V2, do_cdp},
1074 {"ldc", 0xec100000, 3, ARM_EXT_V2, do_lstc},
1075 {"ldcl", 0xec500000, 3, ARM_EXT_V2, do_lstc},
1076 {"stc", 0xec000000, 3, ARM_EXT_V2, do_lstc},
1077 {"stcl", 0xec400000, 3, ARM_EXT_V2, do_lstc},
1078 {"mcr", 0xee000010, 3, ARM_EXT_V2, do_co_reg},
1079 {"mrc", 0xee100010, 3, ARM_EXT_V2, do_co_reg},
1080
1081 /* ARM 3 - swp instructions. */
1082 {"swp", 0xe1000090, 3, ARM_EXT_V2S, do_swap},
1083 {"swpb", 0xe1400090, 3, ARM_EXT_V2S, do_swap},
1084
1085 /* ARM 6 Status register instructions. */
1086 {"mrs", 0xe10f0000, 3, ARM_EXT_V3, do_mrs},
1087 {"msr", 0xe120f000, 3, ARM_EXT_V3, do_msr},
1088 /* ScottB: our code uses 0xe128f000 for msr.
1089 NickC: but this is wrong because the bits 16 through 19 are
1090 handled by the PSR_xxx defines above. */
1091
1092 /* ARM 7M long multiplies. */
1093 {"smull", 0xe0c00090, 5, ARM_EXT_V3M, do_mull},
1094 {"smulls", 0xe0d00090, 5, ARM_EXT_V3M, do_mull},
1095 {"umull", 0xe0800090, 5, ARM_EXT_V3M, do_mull},
1096 {"umulls", 0xe0900090, 5, ARM_EXT_V3M, do_mull},
1097 {"smlal", 0xe0e00090, 5, ARM_EXT_V3M, do_mull},
1098 {"smlals", 0xe0f00090, 5, ARM_EXT_V3M, do_mull},
1099 {"umlal", 0xe0a00090, 5, ARM_EXT_V3M, do_mull},
1100 {"umlals", 0xe0b00090, 5, ARM_EXT_V3M, do_mull},
1101
1102 /* ARM Architecture 4. */
1103 {"ldrh", 0xe01000b0, 3, ARM_EXT_V4, do_ldstv4},
1104 {"ldrsh", 0xe01000f0, 3, ARM_EXT_V4, do_ldstv4},
1105 {"ldrsb", 0xe01000d0, 3, ARM_EXT_V4, do_ldstv4},
1106 {"strh", 0xe00000b0, 3, ARM_EXT_V4, do_ldstv4},
1107
1108 /* ARM Architecture 4T. */
1109 /* Note: bx (and blx) are required on V5, even if the processor does
1110 not support Thumb. */
1111 {"bx", 0xe12fff10, 2, ARM_EXT_V4T | ARM_EXT_V5, do_bx},
1112
1113 /* ARM Architecture 5T. */
1114 /* Note: blx has 2 variants, so the .value is set dynamically.
1115 Only one of the variants has conditional execution. */
1116 {"blx", 0xe0000000, 3, ARM_EXT_V5, do_blx},
1117 {"clz", 0xe16f0f10, 3, ARM_EXT_V5, do_clz},
1118 {"bkpt", 0xe1200070, 0, ARM_EXT_V5, do_bkpt},
1119 {"ldc2", 0xfc100000, 0, ARM_EXT_V5, do_lstc2},
1120 {"ldc2l", 0xfc500000, 0, ARM_EXT_V5, do_lstc2},
1121 {"stc2", 0xfc000000, 0, ARM_EXT_V5, do_lstc2},
1122 {"stc2l", 0xfc400000, 0, ARM_EXT_V5, do_lstc2},
1123 {"cdp2", 0xfe000000, 0, ARM_EXT_V5, do_cdp2},
1124 {"mcr2", 0xfe000010, 0, ARM_EXT_V5, do_co_reg2},
1125 {"mrc2", 0xfe100010, 0, ARM_EXT_V5, do_co_reg2},
1126
1127 /* ARM Architecture 5TExP. */
1128 {"smlabb", 0xe1000080, 6, ARM_EXT_V5ExP, do_smla},
1129 {"smlatb", 0xe10000a0, 6, ARM_EXT_V5ExP, do_smla},
1130 {"smlabt", 0xe10000c0, 6, ARM_EXT_V5ExP, do_smla},
1131 {"smlatt", 0xe10000e0, 6, ARM_EXT_V5ExP, do_smla},
1132
1133 {"smlawb", 0xe1200080, 6, ARM_EXT_V5ExP, do_smla},
1134 {"smlawt", 0xe12000c0, 6, ARM_EXT_V5ExP, do_smla},
1135
1136 {"smlalbb", 0xe1400080, 7, ARM_EXT_V5ExP, do_smlal},
1137 {"smlaltb", 0xe14000a0, 7, ARM_EXT_V5ExP, do_smlal},
1138 {"smlalbt", 0xe14000c0, 7, ARM_EXT_V5ExP, do_smlal},
1139 {"smlaltt", 0xe14000e0, 7, ARM_EXT_V5ExP, do_smlal},
1140
1141 {"smulbb", 0xe1600080, 6, ARM_EXT_V5ExP, do_smul},
1142 {"smultb", 0xe16000a0, 6, ARM_EXT_V5ExP, do_smul},
1143 {"smulbt", 0xe16000c0, 6, ARM_EXT_V5ExP, do_smul},
1144 {"smultt", 0xe16000e0, 6, ARM_EXT_V5ExP, do_smul},
1145
1146 {"smulwb", 0xe12000a0, 6, ARM_EXT_V5ExP, do_smul},
1147 {"smulwt", 0xe12000e0, 6, ARM_EXT_V5ExP, do_smul},
1148
1149 {"qadd", 0xe1000050, 4, ARM_EXT_V5ExP, do_qadd},
1150 {"qdadd", 0xe1400050, 5, ARM_EXT_V5ExP, do_qadd},
1151 {"qsub", 0xe1200050, 4, ARM_EXT_V5ExP, do_qadd},
1152 {"qdsub", 0xe1600050, 5, ARM_EXT_V5ExP, do_qadd},
1153
1154 /* ARM Architecture 5TE. */
1155 {"pld", 0xf450f000, 0, ARM_EXT_V5E, do_pld},
1156 {"ldrd", 0xe00000d0, 3, ARM_EXT_V5E, do_ldrd},
1157 {"strd", 0xe00000f0, 3, ARM_EXT_V5E, do_ldrd},
1158
1159 {"mcrr", 0xec400000, 4, ARM_EXT_V5E, do_co_reg2c},
1160 {"mrrc", 0xec500000, 4, ARM_EXT_V5E, do_co_reg2c},
1161
1162 /* ARM Architecture 5TEJ. */
1163 {"bxj", 0xe12fff20, 3, ARM_EXT_V5J, do_bxj},
1164
1165 /* Core FPA instruction set (V1). */
1166 {"wfs", 0xee200110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
1167 {"rfs", 0xee300110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
1168 {"wfc", 0xee400110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
1169 {"rfc", 0xee500110, 3, FPU_FPA_EXT_V1, do_fpa_ctrl},
1170
1171 {"ldfs", 0xec100100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1172 {"ldfd", 0xec108100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1173 {"ldfe", 0xec500100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1174 {"ldfp", 0xec508100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1175
1176 {"stfs", 0xec000100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1177 {"stfd", 0xec008100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1178 {"stfe", 0xec400100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1179 {"stfp", 0xec408100, 3, FPU_FPA_EXT_V1, do_fpa_ldst},
1180
1181 {"mvfs", 0xee008100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1182 {"mvfsp", 0xee008120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1183 {"mvfsm", 0xee008140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1184 {"mvfsz", 0xee008160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1185 {"mvfd", 0xee008180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1186 {"mvfdp", 0xee0081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1187 {"mvfdm", 0xee0081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1188 {"mvfdz", 0xee0081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1189 {"mvfe", 0xee088100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1190 {"mvfep", 0xee088120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1191 {"mvfem", 0xee088140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1192 {"mvfez", 0xee088160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1193
1194 {"mnfs", 0xee108100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1195 {"mnfsp", 0xee108120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1196 {"mnfsm", 0xee108140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1197 {"mnfsz", 0xee108160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1198 {"mnfd", 0xee108180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1199 {"mnfdp", 0xee1081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1200 {"mnfdm", 0xee1081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1201 {"mnfdz", 0xee1081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1202 {"mnfe", 0xee188100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1203 {"mnfep", 0xee188120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1204 {"mnfem", 0xee188140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1205 {"mnfez", 0xee188160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1206
1207 {"abss", 0xee208100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1208 {"abssp", 0xee208120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1209 {"abssm", 0xee208140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1210 {"abssz", 0xee208160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1211 {"absd", 0xee208180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1212 {"absdp", 0xee2081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1213 {"absdm", 0xee2081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1214 {"absdz", 0xee2081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1215 {"abse", 0xee288100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1216 {"absep", 0xee288120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1217 {"absem", 0xee288140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1218 {"absez", 0xee288160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1219
1220 {"rnds", 0xee308100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1221 {"rndsp", 0xee308120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1222 {"rndsm", 0xee308140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1223 {"rndsz", 0xee308160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1224 {"rndd", 0xee308180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1225 {"rnddp", 0xee3081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1226 {"rnddm", 0xee3081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1227 {"rnddz", 0xee3081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1228 {"rnde", 0xee388100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1229 {"rndep", 0xee388120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1230 {"rndem", 0xee388140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1231 {"rndez", 0xee388160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1232
1233 {"sqts", 0xee408100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1234 {"sqtsp", 0xee408120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1235 {"sqtsm", 0xee408140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1236 {"sqtsz", 0xee408160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1237 {"sqtd", 0xee408180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1238 {"sqtdp", 0xee4081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1239 {"sqtdm", 0xee4081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1240 {"sqtdz", 0xee4081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1241 {"sqte", 0xee488100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1242 {"sqtep", 0xee488120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1243 {"sqtem", 0xee488140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1244 {"sqtez", 0xee488160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1245
1246 {"logs", 0xee508100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1247 {"logsp", 0xee508120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1248 {"logsm", 0xee508140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1249 {"logsz", 0xee508160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1250 {"logd", 0xee508180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1251 {"logdp", 0xee5081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1252 {"logdm", 0xee5081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1253 {"logdz", 0xee5081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1254 {"loge", 0xee588100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1255 {"logep", 0xee588120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1256 {"logem", 0xee588140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1257 {"logez", 0xee588160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1258
1259 {"lgns", 0xee608100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1260 {"lgnsp", 0xee608120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1261 {"lgnsm", 0xee608140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1262 {"lgnsz", 0xee608160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1263 {"lgnd", 0xee608180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1264 {"lgndp", 0xee6081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1265 {"lgndm", 0xee6081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1266 {"lgndz", 0xee6081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1267 {"lgne", 0xee688100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1268 {"lgnep", 0xee688120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1269 {"lgnem", 0xee688140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1270 {"lgnez", 0xee688160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1271
1272 {"exps", 0xee708100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1273 {"expsp", 0xee708120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1274 {"expsm", 0xee708140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1275 {"expsz", 0xee708160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1276 {"expd", 0xee708180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1277 {"expdp", 0xee7081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1278 {"expdm", 0xee7081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1279 {"expdz", 0xee7081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1280 {"expe", 0xee788100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1281 {"expep", 0xee788120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1282 {"expem", 0xee788140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1283 {"expdz", 0xee788160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1284
1285 {"sins", 0xee808100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1286 {"sinsp", 0xee808120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1287 {"sinsm", 0xee808140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1288 {"sinsz", 0xee808160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1289 {"sind", 0xee808180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1290 {"sindp", 0xee8081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1291 {"sindm", 0xee8081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1292 {"sindz", 0xee8081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1293 {"sine", 0xee888100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1294 {"sinep", 0xee888120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1295 {"sinem", 0xee888140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1296 {"sinez", 0xee888160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1297
1298 {"coss", 0xee908100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1299 {"cossp", 0xee908120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1300 {"cossm", 0xee908140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1301 {"cossz", 0xee908160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1302 {"cosd", 0xee908180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1303 {"cosdp", 0xee9081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1304 {"cosdm", 0xee9081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1305 {"cosdz", 0xee9081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1306 {"cose", 0xee988100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1307 {"cosep", 0xee988120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1308 {"cosem", 0xee988140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1309 {"cosez", 0xee988160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1310
1311 {"tans", 0xeea08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1312 {"tansp", 0xeea08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1313 {"tansm", 0xeea08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1314 {"tansz", 0xeea08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1315 {"tand", 0xeea08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1316 {"tandp", 0xeea081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1317 {"tandm", 0xeea081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1318 {"tandz", 0xeea081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1319 {"tane", 0xeea88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1320 {"tanep", 0xeea88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1321 {"tanem", 0xeea88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1322 {"tanez", 0xeea88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1323
1324 {"asns", 0xeeb08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1325 {"asnsp", 0xeeb08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1326 {"asnsm", 0xeeb08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1327 {"asnsz", 0xeeb08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1328 {"asnd", 0xeeb08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1329 {"asndp", 0xeeb081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1330 {"asndm", 0xeeb081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1331 {"asndz", 0xeeb081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1332 {"asne", 0xeeb88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1333 {"asnep", 0xeeb88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1334 {"asnem", 0xeeb88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1335 {"asnez", 0xeeb88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1336
1337 {"acss", 0xeec08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1338 {"acssp", 0xeec08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1339 {"acssm", 0xeec08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1340 {"acssz", 0xeec08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1341 {"acsd", 0xeec08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1342 {"acsdp", 0xeec081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1343 {"acsdm", 0xeec081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1344 {"acsdz", 0xeec081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1345 {"acse", 0xeec88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1346 {"acsep", 0xeec88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1347 {"acsem", 0xeec88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1348 {"acsez", 0xeec88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1349
1350 {"atns", 0xeed08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1351 {"atnsp", 0xeed08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1352 {"atnsm", 0xeed08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1353 {"atnsz", 0xeed08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1354 {"atnd", 0xeed08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1355 {"atndp", 0xeed081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1356 {"atndm", 0xeed081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1357 {"atndz", 0xeed081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1358 {"atne", 0xeed88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1359 {"atnep", 0xeed88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1360 {"atnem", 0xeed88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1361 {"atnez", 0xeed88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1362
1363 {"urds", 0xeee08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1364 {"urdsp", 0xeee08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1365 {"urdsm", 0xeee08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1366 {"urdsz", 0xeee08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1367 {"urdd", 0xeee08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1368 {"urddp", 0xeee081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1369 {"urddm", 0xeee081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1370 {"urddz", 0xeee081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1371 {"urde", 0xeee88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1372 {"urdep", 0xeee88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1373 {"urdem", 0xeee88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1374 {"urdez", 0xeee88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1375
1376 {"nrms", 0xeef08100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1377 {"nrmsp", 0xeef08120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1378 {"nrmsm", 0xeef08140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1379 {"nrmsz", 0xeef08160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1380 {"nrmd", 0xeef08180, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1381 {"nrmdp", 0xeef081a0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1382 {"nrmdm", 0xeef081c0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1383 {"nrmdz", 0xeef081e0, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1384 {"nrme", 0xeef88100, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1385 {"nrmep", 0xeef88120, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1386 {"nrmem", 0xeef88140, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1387 {"nrmez", 0xeef88160, 3, FPU_FPA_EXT_V1, do_fpa_monadic},
1388
1389 {"adfs", 0xee000100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1390 {"adfsp", 0xee000120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1391 {"adfsm", 0xee000140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1392 {"adfsz", 0xee000160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1393 {"adfd", 0xee000180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1394 {"adfdp", 0xee0001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1395 {"adfdm", 0xee0001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1396 {"adfdz", 0xee0001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1397 {"adfe", 0xee080100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1398 {"adfep", 0xee080120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1399 {"adfem", 0xee080140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1400 {"adfez", 0xee080160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1401
1402 {"sufs", 0xee200100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1403 {"sufsp", 0xee200120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1404 {"sufsm", 0xee200140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1405 {"sufsz", 0xee200160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1406 {"sufd", 0xee200180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1407 {"sufdp", 0xee2001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1408 {"sufdm", 0xee2001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1409 {"sufdz", 0xee2001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1410 {"sufe", 0xee280100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1411 {"sufep", 0xee280120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1412 {"sufem", 0xee280140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1413 {"sufez", 0xee280160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1414
1415 {"rsfs", 0xee300100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1416 {"rsfsp", 0xee300120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1417 {"rsfsm", 0xee300140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1418 {"rsfsz", 0xee300160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1419 {"rsfd", 0xee300180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1420 {"rsfdp", 0xee3001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1421 {"rsfdm", 0xee3001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1422 {"rsfdz", 0xee3001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1423 {"rsfe", 0xee380100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1424 {"rsfep", 0xee380120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1425 {"rsfem", 0xee380140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1426 {"rsfez", 0xee380160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1427
1428 {"mufs", 0xee100100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1429 {"mufsp", 0xee100120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1430 {"mufsm", 0xee100140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1431 {"mufsz", 0xee100160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1432 {"mufd", 0xee100180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1433 {"mufdp", 0xee1001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1434 {"mufdm", 0xee1001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1435 {"mufdz", 0xee1001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1436 {"mufe", 0xee180100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1437 {"mufep", 0xee180120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1438 {"mufem", 0xee180140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1439 {"mufez", 0xee180160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1440
1441 {"dvfs", 0xee400100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1442 {"dvfsp", 0xee400120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1443 {"dvfsm", 0xee400140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1444 {"dvfsz", 0xee400160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1445 {"dvfd", 0xee400180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1446 {"dvfdp", 0xee4001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1447 {"dvfdm", 0xee4001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1448 {"dvfdz", 0xee4001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1449 {"dvfe", 0xee480100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1450 {"dvfep", 0xee480120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1451 {"dvfem", 0xee480140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1452 {"dvfez", 0xee480160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1453
1454 {"rdfs", 0xee500100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1455 {"rdfsp", 0xee500120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1456 {"rdfsm", 0xee500140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1457 {"rdfsz", 0xee500160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1458 {"rdfd", 0xee500180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1459 {"rdfdp", 0xee5001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1460 {"rdfdm", 0xee5001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1461 {"rdfdz", 0xee5001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1462 {"rdfe", 0xee580100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1463 {"rdfep", 0xee580120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1464 {"rdfem", 0xee580140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1465 {"rdfez", 0xee580160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1466
1467 {"pows", 0xee600100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1468 {"powsp", 0xee600120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1469 {"powsm", 0xee600140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1470 {"powsz", 0xee600160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1471 {"powd", 0xee600180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1472 {"powdp", 0xee6001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1473 {"powdm", 0xee6001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1474 {"powdz", 0xee6001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1475 {"powe", 0xee680100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1476 {"powep", 0xee680120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1477 {"powem", 0xee680140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1478 {"powez", 0xee680160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1479
1480 {"rpws", 0xee700100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1481 {"rpwsp", 0xee700120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1482 {"rpwsm", 0xee700140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1483 {"rpwsz", 0xee700160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1484 {"rpwd", 0xee700180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1485 {"rpwdp", 0xee7001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1486 {"rpwdm", 0xee7001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1487 {"rpwdz", 0xee7001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1488 {"rpwe", 0xee780100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1489 {"rpwep", 0xee780120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1490 {"rpwem", 0xee780140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1491 {"rpwez", 0xee780160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1492
1493 {"rmfs", 0xee800100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1494 {"rmfsp", 0xee800120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1495 {"rmfsm", 0xee800140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1496 {"rmfsz", 0xee800160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1497 {"rmfd", 0xee800180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1498 {"rmfdp", 0xee8001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1499 {"rmfdm", 0xee8001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1500 {"rmfdz", 0xee8001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1501 {"rmfe", 0xee880100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1502 {"rmfep", 0xee880120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1503 {"rmfem", 0xee880140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1504 {"rmfez", 0xee880160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1505
1506 {"fmls", 0xee900100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1507 {"fmlsp", 0xee900120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1508 {"fmlsm", 0xee900140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1509 {"fmlsz", 0xee900160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1510 {"fmld", 0xee900180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1511 {"fmldp", 0xee9001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1512 {"fmldm", 0xee9001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1513 {"fmldz", 0xee9001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1514 {"fmle", 0xee980100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1515 {"fmlep", 0xee980120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1516 {"fmlem", 0xee980140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1517 {"fmlez", 0xee980160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1518
1519 {"fdvs", 0xeea00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1520 {"fdvsp", 0xeea00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1521 {"fdvsm", 0xeea00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1522 {"fdvsz", 0xeea00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1523 {"fdvd", 0xeea00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1524 {"fdvdp", 0xeea001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1525 {"fdvdm", 0xeea001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1526 {"fdvdz", 0xeea001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1527 {"fdve", 0xeea80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1528 {"fdvep", 0xeea80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1529 {"fdvem", 0xeea80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1530 {"fdvez", 0xeea80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1531
1532 {"frds", 0xeeb00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1533 {"frdsp", 0xeeb00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1534 {"frdsm", 0xeeb00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1535 {"frdsz", 0xeeb00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1536 {"frdd", 0xeeb00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1537 {"frddp", 0xeeb001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1538 {"frddm", 0xeeb001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1539 {"frddz", 0xeeb001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1540 {"frde", 0xeeb80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1541 {"frdep", 0xeeb80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1542 {"frdem", 0xeeb80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1543 {"frdez", 0xeeb80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1544
1545 {"pols", 0xeec00100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1546 {"polsp", 0xeec00120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1547 {"polsm", 0xeec00140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1548 {"polsz", 0xeec00160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1549 {"pold", 0xeec00180, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1550 {"poldp", 0xeec001a0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1551 {"poldm", 0xeec001c0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1552 {"poldz", 0xeec001e0, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1553 {"pole", 0xeec80100, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1554 {"polep", 0xeec80120, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1555 {"polem", 0xeec80140, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1556 {"polez", 0xeec80160, 3, FPU_FPA_EXT_V1, do_fpa_dyadic},
1557
1558 {"cmf", 0xee90f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
1559 {"cmfe", 0xeed0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
1560 {"cnf", 0xeeb0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
1561 {"cnfe", 0xeef0f110, 3, FPU_FPA_EXT_V1, do_fpa_cmp},
1562 /* The FPA10 data sheet suggests that the 'E' of cmfe/cnfe should
1563 not be an optional suffix, but part of the instruction. To be
1564 compatible, we accept either. */
1565 {"cmfe", 0xeed0f110, 4, FPU_FPA_EXT_V1, do_fpa_cmp},
1566 {"cnfe", 0xeef0f110, 4, FPU_FPA_EXT_V1, do_fpa_cmp},
1567
1568 {"flts", 0xee000110, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1569 {"fltsp", 0xee000130, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1570 {"fltsm", 0xee000150, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1571 {"fltsz", 0xee000170, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1572 {"fltd", 0xee000190, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1573 {"fltdp", 0xee0001b0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1574 {"fltdm", 0xee0001d0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1575 {"fltdz", 0xee0001f0, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1576 {"flte", 0xee080110, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1577 {"fltep", 0xee080130, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1578 {"fltem", 0xee080150, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1579 {"fltez", 0xee080170, 3, FPU_FPA_EXT_V1, do_fpa_from_reg},
1580
1581 /* The implementation of the FIX instruction is broken on some
1582 assemblers, in that it accepts a precision specifier as well as a
1583 rounding specifier, despite the fact that this is meaningless.
1584 To be more compatible, we accept it as well, though of course it
1585 does not set any bits. */
1586 {"fix", 0xee100110, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1587 {"fixp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1588 {"fixm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1589 {"fixz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1590 {"fixsp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1591 {"fixsm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1592 {"fixsz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1593 {"fixdp", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1594 {"fixdm", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1595 {"fixdz", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1596 {"fixep", 0xee100130, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1597 {"fixem", 0xee100150, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1598 {"fixez", 0xee100170, 3, FPU_FPA_EXT_V1, do_fpa_to_reg},
1599
1600 /* Instructions that were new with the real FPA, call them V2. */
1601 {"lfm", 0xec100200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1602 {"lfmfd", 0xec900200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1603 {"lfmea", 0xed100200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1604 {"sfm", 0xec000200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1605 {"sfmfd", 0xed000200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1606 {"sfmea", 0xec800200, 3, FPU_FPA_EXT_V2, do_fpa_ldmstm},
1607
1608 /* VFP V1xD (single precision). */
1609 /* Moves and type conversions. */
1610 {"fcpys", 0xeeb00a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1611 {"fmrs", 0xee100a10, 4, FPU_VFP_EXT_V1xD, do_vfp_reg_from_sp},
1612 {"fmsr", 0xee000a10, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_from_reg},
1613 {"fmstat", 0xeef1fa10, 6, FPU_VFP_EXT_V1xD, do_empty},
1614 {"fsitos", 0xeeb80ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1615 {"fuitos", 0xeeb80a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1616 {"ftosis", 0xeebd0a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1617 {"ftosizs", 0xeebd0ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1618 {"ftouis", 0xeebc0a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1619 {"ftouizs", 0xeebc0ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1620 {"fmrx", 0xeef00a10, 4, FPU_VFP_EXT_V1xD, do_vfp_reg_from_ctrl},
1621 {"fmxr", 0xeee00a10, 4, FPU_VFP_EXT_V1xD, do_vfp_ctrl_from_reg},
1622
1623 /* Memory operations. */
1624 {"flds", 0xed100a00, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_ldst},
1625 {"fsts", 0xed000a00, 4, FPU_VFP_EXT_V1xD, do_vfp_sp_ldst},
1626 {"fldmias", 0xec900a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
1627 {"fldmfds", 0xec900a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
1628 {"fldmdbs", 0xed300a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
1629 {"fldmeas", 0xed300a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
1630 {"fldmiax", 0xec900b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
1631 {"fldmfdx", 0xec900b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
1632 {"fldmdbx", 0xed300b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
1633 {"fldmeax", 0xed300b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
1634 {"fstmias", 0xec800a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
1635 {"fstmeas", 0xec800a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmia},
1636 {"fstmdbs", 0xed200a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
1637 {"fstmfds", 0xed200a00, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_ldstmdb},
1638 {"fstmiax", 0xec800b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
1639 {"fstmeax", 0xec800b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmia},
1640 {"fstmdbx", 0xed200b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
1641 {"fstmfdx", 0xed200b00, 7, FPU_VFP_EXT_V1xD, do_vfp_xp_ldstmdb},
1642
1643 /* Monadic operations. */
1644 {"fabss", 0xeeb00ac0, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1645 {"fnegs", 0xeeb10a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1646 {"fsqrts", 0xeeb10ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1647
1648 /* Dyadic operations. */
1649 {"fadds", 0xee300a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1650 {"fsubs", 0xee300a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1651 {"fmuls", 0xee200a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1652 {"fdivs", 0xee800a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1653 {"fmacs", 0xee000a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1654 {"fmscs", 0xee100a00, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1655 {"fnmuls", 0xee200a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1656 {"fnmacs", 0xee000a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1657 {"fnmscs", 0xee100a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_dyadic},
1658
1659 /* Comparisons. */
1660 {"fcmps", 0xeeb40a40, 5, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1661 {"fcmpzs", 0xeeb50a40, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_compare_z},
1662 {"fcmpes", 0xeeb40ac0, 6, FPU_VFP_EXT_V1xD, do_vfp_sp_monadic},
1663 {"fcmpezs", 0xeeb50ac0, 7, FPU_VFP_EXT_V1xD, do_vfp_sp_compare_z},
1664
1665 /* VFP V1 (Double precision). */
1666 /* Moves and type conversions. */
1667 {"fcpyd", 0xeeb00b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1668 {"fcvtds", 0xeeb70ac0, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
1669 {"fcvtsd", 0xeeb70bc0, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
1670 {"fmdhr", 0xee200b10, 5, FPU_VFP_EXT_V1, do_vfp_dp_from_reg},
1671 {"fmdlr", 0xee000b10, 5, FPU_VFP_EXT_V1, do_vfp_dp_from_reg},
1672 {"fmrdh", 0xee300b10, 5, FPU_VFP_EXT_V1, do_vfp_reg_from_dp},
1673 {"fmrdl", 0xee100b10, 5, FPU_VFP_EXT_V1, do_vfp_reg_from_dp},
1674 {"fsitod", 0xeeb80bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
1675 {"fuitod", 0xeeb80b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_sp_cvt},
1676 {"ftosid", 0xeebd0b40, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
1677 {"ftosizd", 0xeebd0bc0, 7, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
1678 {"ftouid", 0xeebc0b40, 6, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
1679 {"ftouizd", 0xeebc0bc0, 7, FPU_VFP_EXT_V1, do_vfp_sp_dp_cvt},
1680
1681 /* Memory operations. */
1682 {"fldd", 0xed100b00, 4, FPU_VFP_EXT_V1, do_vfp_dp_ldst},
1683 {"fstd", 0xed000b00, 4, FPU_VFP_EXT_V1, do_vfp_dp_ldst},
1684 {"fldmiad", 0xec900b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
1685 {"fldmfdd", 0xec900b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
1686 {"fldmdbd", 0xed300b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
1687 {"fldmead", 0xed300b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
1688 {"fstmiad", 0xec800b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
1689 {"fstmead", 0xec800b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmia},
1690 {"fstmdbd", 0xed200b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
1691 {"fstmfdd", 0xed200b00, 7, FPU_VFP_EXT_V1, do_vfp_dp_ldstmdb},
1692
1693 /* Monadic operations. */
1694 {"fabsd", 0xeeb00bc0, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1695 {"fnegd", 0xeeb10b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1696 {"fsqrtd", 0xeeb10bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1697
1698 /* Dyadic operations. */
1699 {"faddd", 0xee300b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1700 {"fsubd", 0xee300b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1701 {"fmuld", 0xee200b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1702 {"fdivd", 0xee800b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1703 {"fmacd", 0xee000b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1704 {"fmscd", 0xee100b00, 5, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1705 {"fnmuld", 0xee200b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1706 {"fnmacd", 0xee000b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1707 {"fnmscd", 0xee100b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_dyadic},
1708
1709 /* Comparisons. */
1710 {"fcmpd", 0xeeb40b40, 5, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1711 {"fcmpzd", 0xeeb50b40, 6, FPU_VFP_EXT_V1, do_vfp_dp_compare_z},
1712 {"fcmped", 0xeeb40bc0, 6, FPU_VFP_EXT_V1, do_vfp_dp_monadic},
1713 {"fcmpezd", 0xeeb50bc0, 7, FPU_VFP_EXT_V1, do_vfp_dp_compare_z},
1714
1715 /* VFP V2. */
1716 {"fmsrr", 0xec400a10, 5, FPU_VFP_EXT_V2, do_vfp_sp_reg2},
1717 {"fmrrs", 0xec500a10, 5, FPU_VFP_EXT_V2, do_vfp_sp_reg2},
1718 {"fmdrr", 0xec400b10, 5, FPU_VFP_EXT_V2, do_vfp_dp_from_reg2},
1719 {"fmrrd", 0xec500b10, 5, FPU_VFP_EXT_V2, do_vfp_reg2_from_dp},
1720
1721 /* Intel XScale extensions to ARM V5 ISA. (All use CP0). */
1722 {"mia", 0xee200010, 3, ARM_CEXT_XSCALE, do_xsc_mia},
1723 {"miaph", 0xee280010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
1724 {"miabb", 0xee2c0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
1725 {"miabt", 0xee2d0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
1726 {"miatb", 0xee2e0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
1727 {"miatt", 0xee2f0010, 5, ARM_CEXT_XSCALE, do_xsc_mia},
1728 {"mar", 0xec400000, 3, ARM_CEXT_XSCALE, do_xsc_mar},
1729 {"mra", 0xec500000, 3, ARM_CEXT_XSCALE, do_xsc_mra},
1730
1731 /* Cirrus Maverick instructions. */
1732 {"cfldrs", 0xec100400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_1},
1733 {"cfldrd", 0xec500400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_2},
1734 {"cfldr32", 0xec100500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_3},
1735 {"cfldr64", 0xec500500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_4},
1736 {"cfstrs", 0xec000400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_1},
1737 {"cfstrd", 0xec400400, 6, ARM_CEXT_MAVERICK, do_mav_ldst_2},
1738 {"cfstr32", 0xec000500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_3},
1739 {"cfstr64", 0xec400500, 7, ARM_CEXT_MAVERICK, do_mav_ldst_4},
1740 {"cfmvsr", 0xee000450, 6, ARM_CEXT_MAVERICK, do_mav_binops_2a},
1741 {"cfmvrs", 0xee100450, 6, ARM_CEXT_MAVERICK, do_mav_binops_1a},
1742 {"cfmvdlr", 0xee000410, 7, ARM_CEXT_MAVERICK, do_mav_binops_2b},
1743 {"cfmvrdl", 0xee100410, 7, ARM_CEXT_MAVERICK, do_mav_binops_1b},
1744 {"cfmvdhr", 0xee000430, 7, ARM_CEXT_MAVERICK, do_mav_binops_2b},
1745 {"cfmvrdh", 0xee100430, 7, ARM_CEXT_MAVERICK, do_mav_binops_1b},
1746 {"cfmv64lr", 0xee000510, 8, ARM_CEXT_MAVERICK, do_mav_binops_2c},
1747 {"cfmvr64l", 0xee100510, 8, ARM_CEXT_MAVERICK, do_mav_binops_1c},
1748 {"cfmv64hr", 0xee000530, 8, ARM_CEXT_MAVERICK, do_mav_binops_2c},
1749 {"cfmvr64h", 0xee100530, 8, ARM_CEXT_MAVERICK, do_mav_binops_1c},
1750 {"cfmval32", 0xee100610, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
1751 {"cfmv32al", 0xee000610, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
1752 {"cfmvam32", 0xee100630, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
1753 {"cfmv32am", 0xee000630, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
1754 {"cfmvah32", 0xee100650, 8, ARM_CEXT_MAVERICK, do_mav_binops_3a},
1755 {"cfmv32ah", 0xee000650, 8, ARM_CEXT_MAVERICK, do_mav_binops_3b},
1756 {"cfmva32", 0xee100670, 7, ARM_CEXT_MAVERICK, do_mav_binops_3a},
1757 {"cfmv32a", 0xee000670, 7, ARM_CEXT_MAVERICK, do_mav_binops_3b},
1758 {"cfmva64", 0xee100690, 7, ARM_CEXT_MAVERICK, do_mav_binops_3c},
1759 {"cfmv64a", 0xee000690, 7, ARM_CEXT_MAVERICK, do_mav_binops_3d},
1760 {"cfmvsc32", 0xee1006b0, 8, ARM_CEXT_MAVERICK, do_mav_dspsc_1},
1761 {"cfmv32sc", 0xee0006b0, 8, ARM_CEXT_MAVERICK, do_mav_dspsc_2},
1762 {"cfcpys", 0xee000400, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
1763 {"cfcpyd", 0xee000420, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
1764 {"cfcvtsd", 0xee000460, 7, ARM_CEXT_MAVERICK, do_mav_binops_1f},
1765 {"cfcvtds", 0xee000440, 7, ARM_CEXT_MAVERICK, do_mav_binops_1g},
1766 {"cfcvt32s", 0xee000480, 8, ARM_CEXT_MAVERICK, do_mav_binops_1h},
1767 {"cfcvt32d", 0xee0004a0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1i},
1768 {"cfcvt64s", 0xee0004c0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1j},
1769 {"cfcvt64d", 0xee0004e0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1k},
1770 {"cfcvts32", 0xee100580, 8, ARM_CEXT_MAVERICK, do_mav_binops_1l},
1771 {"cfcvtd32", 0xee1005a0, 8, ARM_CEXT_MAVERICK, do_mav_binops_1m},
1772 {"cftruncs32", 0xee1005c0, 10, ARM_CEXT_MAVERICK, do_mav_binops_1l},
1773 {"cftruncd32", 0xee1005e0, 10, ARM_CEXT_MAVERICK, do_mav_binops_1m},
1774 {"cfrshl32", 0xee000550, 8, ARM_CEXT_MAVERICK, do_mav_triple_4a},
1775 {"cfrshl64", 0xee000570, 8, ARM_CEXT_MAVERICK, do_mav_triple_4b},
1776 {"cfsh32", 0xee000500, 6, ARM_CEXT_MAVERICK, do_mav_shift_1},
1777 {"cfsh64", 0xee200500, 6, ARM_CEXT_MAVERICK, do_mav_shift_2},
1778 {"cfcmps", 0xee100490, 6, ARM_CEXT_MAVERICK, do_mav_triple_5a},
1779 {"cfcmpd", 0xee1004b0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5b},
1780 {"cfcmp32", 0xee100590, 7, ARM_CEXT_MAVERICK, do_mav_triple_5c},
1781 {"cfcmp64", 0xee1005b0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5d},
1782 {"cfabss", 0xee300400, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
1783 {"cfabsd", 0xee300420, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
1784 {"cfnegs", 0xee300440, 6, ARM_CEXT_MAVERICK, do_mav_binops_1d},
1785 {"cfnegd", 0xee300460, 6, ARM_CEXT_MAVERICK, do_mav_binops_1e},
1786 {"cfadds", 0xee300480, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
1787 {"cfaddd", 0xee3004a0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
1788 {"cfsubs", 0xee3004c0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
1789 {"cfsubd", 0xee3004e0, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
1790 {"cfmuls", 0xee100400, 6, ARM_CEXT_MAVERICK, do_mav_triple_5e},
1791 {"cfmuld", 0xee100420, 6, ARM_CEXT_MAVERICK, do_mav_triple_5f},
1792 {"cfabs32", 0xee300500, 7, ARM_CEXT_MAVERICK, do_mav_binops_1n},
1793 {"cfabs64", 0xee300520, 7, ARM_CEXT_MAVERICK, do_mav_binops_1o},
1794 {"cfneg32", 0xee300540, 7, ARM_CEXT_MAVERICK, do_mav_binops_1n},
1795 {"cfneg64", 0xee300560, 7, ARM_CEXT_MAVERICK, do_mav_binops_1o},
1796 {"cfadd32", 0xee300580, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
1797 {"cfadd64", 0xee3005a0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
1798 {"cfsub32", 0xee3005c0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
1799 {"cfsub64", 0xee3005e0, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
1800 {"cfmul32", 0xee100500, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
1801 {"cfmul64", 0xee100520, 7, ARM_CEXT_MAVERICK, do_mav_triple_5h},
1802 {"cfmac32", 0xee100540, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
1803 {"cfmsc32", 0xee100560, 7, ARM_CEXT_MAVERICK, do_mav_triple_5g},
1804 {"cfmadd32", 0xee000600, 8, ARM_CEXT_MAVERICK, do_mav_quad_6a},
1805 {"cfmsub32", 0xee100600, 8, ARM_CEXT_MAVERICK, do_mav_quad_6a},
1806 {"cfmadda32", 0xee200600, 9, ARM_CEXT_MAVERICK, do_mav_quad_6b},
1807 {"cfmsuba32", 0xee300600, 9, ARM_CEXT_MAVERICK, do_mav_quad_6b},
1808 };
1809
1810 /* Defines for various bits that we will want to toggle. */
1811 #define INST_IMMEDIATE 0x02000000
1812 #define OFFSET_REG 0x02000000
1813 #define HWOFFSET_IMM 0x00400000
1814 #define SHIFT_BY_REG 0x00000010
1815 #define PRE_INDEX 0x01000000
1816 #define INDEX_UP 0x00800000
1817 #define WRITE_BACK 0x00200000
1818 #define LDM_TYPE_2_OR_3 0x00400000
1819
1820 #define LITERAL_MASK 0xf000f000
1821 #define OPCODE_MASK 0xfe1fffff
1822 #define V4_STR_BIT 0x00000020
1823
1824 #define DATA_OP_SHIFT 21
1825
1826 /* Codes to distinguish the arithmetic instructions. */
1827 #define OPCODE_AND 0
1828 #define OPCODE_EOR 1
1829 #define OPCODE_SUB 2
1830 #define OPCODE_RSB 3
1831 #define OPCODE_ADD 4
1832 #define OPCODE_ADC 5
1833 #define OPCODE_SBC 6
1834 #define OPCODE_RSC 7
1835 #define OPCODE_TST 8
1836 #define OPCODE_TEQ 9
1837 #define OPCODE_CMP 10
1838 #define OPCODE_CMN 11
1839 #define OPCODE_ORR 12
1840 #define OPCODE_MOV 13
1841 #define OPCODE_BIC 14
1842 #define OPCODE_MVN 15
1843
1844 /* Thumb v1 (ARMv4T). */
1845 static void do_t_nop PARAMS ((char *));
1846 static void do_t_arit PARAMS ((char *));
1847 static void do_t_add PARAMS ((char *));
1848 static void do_t_asr PARAMS ((char *));
1849 static void do_t_branch9 PARAMS ((char *));
1850 static void do_t_branch12 PARAMS ((char *));
1851 static void do_t_branch23 PARAMS ((char *));
1852 static void do_t_bx PARAMS ((char *));
1853 static void do_t_compare PARAMS ((char *));
1854 static void do_t_ldmstm PARAMS ((char *));
1855 static void do_t_ldr PARAMS ((char *));
1856 static void do_t_ldrb PARAMS ((char *));
1857 static void do_t_ldrh PARAMS ((char *));
1858 static void do_t_lds PARAMS ((char *));
1859 static void do_t_lsl PARAMS ((char *));
1860 static void do_t_lsr PARAMS ((char *));
1861 static void do_t_mov PARAMS ((char *));
1862 static void do_t_push_pop PARAMS ((char *));
1863 static void do_t_str PARAMS ((char *));
1864 static void do_t_strb PARAMS ((char *));
1865 static void do_t_strh PARAMS ((char *));
1866 static void do_t_sub PARAMS ((char *));
1867 static void do_t_swi PARAMS ((char *));
1868 static void do_t_adr PARAMS ((char *));
1869
1870 /* Thumb v2 (ARMv5T). */
1871 static void do_t_blx PARAMS ((char *));
1872 static void do_t_bkpt PARAMS ((char *));
1873
1874 #define T_OPCODE_MUL 0x4340
1875 #define T_OPCODE_TST 0x4200
1876 #define T_OPCODE_CMN 0x42c0
1877 #define T_OPCODE_NEG 0x4240
1878 #define T_OPCODE_MVN 0x43c0
1879
1880 #define T_OPCODE_ADD_R3 0x1800
1881 #define T_OPCODE_SUB_R3 0x1a00
1882 #define T_OPCODE_ADD_HI 0x4400
1883 #define T_OPCODE_ADD_ST 0xb000
1884 #define T_OPCODE_SUB_ST 0xb080
1885 #define T_OPCODE_ADD_SP 0xa800
1886 #define T_OPCODE_ADD_PC 0xa000
1887 #define T_OPCODE_ADD_I8 0x3000
1888 #define T_OPCODE_SUB_I8 0x3800
1889 #define T_OPCODE_ADD_I3 0x1c00
1890 #define T_OPCODE_SUB_I3 0x1e00
1891
1892 #define T_OPCODE_ASR_R 0x4100
1893 #define T_OPCODE_LSL_R 0x4080
1894 #define T_OPCODE_LSR_R 0x40c0
1895 #define T_OPCODE_ASR_I 0x1000
1896 #define T_OPCODE_LSL_I 0x0000
1897 #define T_OPCODE_LSR_I 0x0800
1898
1899 #define T_OPCODE_MOV_I8 0x2000
1900 #define T_OPCODE_CMP_I8 0x2800
1901 #define T_OPCODE_CMP_LR 0x4280
1902 #define T_OPCODE_MOV_HR 0x4600
1903 #define T_OPCODE_CMP_HR 0x4500
1904
1905 #define T_OPCODE_LDR_PC 0x4800
1906 #define T_OPCODE_LDR_SP 0x9800
1907 #define T_OPCODE_STR_SP 0x9000
1908 #define T_OPCODE_LDR_IW 0x6800
1909 #define T_OPCODE_STR_IW 0x6000
1910 #define T_OPCODE_LDR_IH 0x8800
1911 #define T_OPCODE_STR_IH 0x8000
1912 #define T_OPCODE_LDR_IB 0x7800
1913 #define T_OPCODE_STR_IB 0x7000
1914 #define T_OPCODE_LDR_RW 0x5800
1915 #define T_OPCODE_STR_RW 0x5000
1916 #define T_OPCODE_LDR_RH 0x5a00
1917 #define T_OPCODE_STR_RH 0x5200
1918 #define T_OPCODE_LDR_RB 0x5c00
1919 #define T_OPCODE_STR_RB 0x5400
1920
1921 #define T_OPCODE_PUSH 0xb400
1922 #define T_OPCODE_POP 0xbc00
1923
1924 #define T_OPCODE_BRANCH 0xe7fe
1925
1926 static int thumb_reg PARAMS ((char ** str, int hi_lo));
1927
1928 #define THUMB_SIZE 2 /* Size of thumb instruction. */
1929 #define THUMB_REG_LO 0x1
1930 #define THUMB_REG_HI 0x2
1931 #define THUMB_REG_ANY 0x3
1932
1933 #define THUMB_H1 0x0080
1934 #define THUMB_H2 0x0040
1935
1936 #define THUMB_ASR 0
1937 #define THUMB_LSL 1
1938 #define THUMB_LSR 2
1939
1940 #define THUMB_MOVE 0
1941 #define THUMB_COMPARE 1
1942
1943 #define THUMB_LOAD 0
1944 #define THUMB_STORE 1
1945
1946 #define THUMB_PP_PC_LR 0x0100
1947
1948 /* These three are used for immediate shifts, do not alter. */
1949 #define THUMB_WORD 2
1950 #define THUMB_HALFWORD 1
1951 #define THUMB_BYTE 0
1952
1953 struct thumb_opcode
1954 {
1955 /* Basic string to match. */
1956 const char * template;
1957
1958 /* Basic instruction code. */
1959 unsigned long value;
1960
1961 int size;
1962
1963 /* Which CPU variants this exists for. */
1964 unsigned long variant;
1965
1966 /* Function to call to parse args. */
1967 void (* parms) PARAMS ((char *));
1968 };
1969
1970 static const struct thumb_opcode tinsns[] =
1971 {
1972 /* Thumb v1 (ARMv4T). */
1973 {"adc", 0x4140, 2, ARM_EXT_V4T, do_t_arit},
1974 {"add", 0x0000, 2, ARM_EXT_V4T, do_t_add},
1975 {"and", 0x4000, 2, ARM_EXT_V4T, do_t_arit},
1976 {"asr", 0x0000, 2, ARM_EXT_V4T, do_t_asr},
1977 {"b", T_OPCODE_BRANCH, 2, ARM_EXT_V4T, do_t_branch12},
1978 {"beq", 0xd0fe, 2, ARM_EXT_V4T, do_t_branch9},
1979 {"bne", 0xd1fe, 2, ARM_EXT_V4T, do_t_branch9},
1980 {"bcs", 0xd2fe, 2, ARM_EXT_V4T, do_t_branch9},
1981 {"bhs", 0xd2fe, 2, ARM_EXT_V4T, do_t_branch9},
1982 {"bcc", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
1983 {"bul", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
1984 {"blo", 0xd3fe, 2, ARM_EXT_V4T, do_t_branch9},
1985 {"bmi", 0xd4fe, 2, ARM_EXT_V4T, do_t_branch9},
1986 {"bpl", 0xd5fe, 2, ARM_EXT_V4T, do_t_branch9},
1987 {"bvs", 0xd6fe, 2, ARM_EXT_V4T, do_t_branch9},
1988 {"bvc", 0xd7fe, 2, ARM_EXT_V4T, do_t_branch9},
1989 {"bhi", 0xd8fe, 2, ARM_EXT_V4T, do_t_branch9},
1990 {"bls", 0xd9fe, 2, ARM_EXT_V4T, do_t_branch9},
1991 {"bge", 0xdafe, 2, ARM_EXT_V4T, do_t_branch9},
1992 {"blt", 0xdbfe, 2, ARM_EXT_V4T, do_t_branch9},
1993 {"bgt", 0xdcfe, 2, ARM_EXT_V4T, do_t_branch9},
1994 {"ble", 0xddfe, 2, ARM_EXT_V4T, do_t_branch9},
1995 {"bal", 0xdefe, 2, ARM_EXT_V4T, do_t_branch9},
1996 {"bic", 0x4380, 2, ARM_EXT_V4T, do_t_arit},
1997 {"bl", 0xf7fffffe, 4, ARM_EXT_V4T, do_t_branch23},
1998 {"bx", 0x4700, 2, ARM_EXT_V4T, do_t_bx},
1999 {"cmn", T_OPCODE_CMN, 2, ARM_EXT_V4T, do_t_arit},
2000 {"cmp", 0x0000, 2, ARM_EXT_V4T, do_t_compare},
2001 {"eor", 0x4040, 2, ARM_EXT_V4T, do_t_arit},
2002 {"ldmia", 0xc800, 2, ARM_EXT_V4T, do_t_ldmstm},
2003 {"ldr", 0x0000, 2, ARM_EXT_V4T, do_t_ldr},
2004 {"ldrb", 0x0000, 2, ARM_EXT_V4T, do_t_ldrb},
2005 {"ldrh", 0x0000, 2, ARM_EXT_V4T, do_t_ldrh},
2006 {"ldrsb", 0x5600, 2, ARM_EXT_V4T, do_t_lds},
2007 {"ldrsh", 0x5e00, 2, ARM_EXT_V4T, do_t_lds},
2008 {"ldsb", 0x5600, 2, ARM_EXT_V4T, do_t_lds},
2009 {"ldsh", 0x5e00, 2, ARM_EXT_V4T, do_t_lds},
2010 {"lsl", 0x0000, 2, ARM_EXT_V4T, do_t_lsl},
2011 {"lsr", 0x0000, 2, ARM_EXT_V4T, do_t_lsr},
2012 {"mov", 0x0000, 2, ARM_EXT_V4T, do_t_mov},
2013 {"mul", T_OPCODE_MUL, 2, ARM_EXT_V4T, do_t_arit},
2014 {"mvn", T_OPCODE_MVN, 2, ARM_EXT_V4T, do_t_arit},
2015 {"neg", T_OPCODE_NEG, 2, ARM_EXT_V4T, do_t_arit},
2016 {"orr", 0x4300, 2, ARM_EXT_V4T, do_t_arit},
2017 {"pop", 0xbc00, 2, ARM_EXT_V4T, do_t_push_pop},
2018 {"push", 0xb400, 2, ARM_EXT_V4T, do_t_push_pop},
2019 {"ror", 0x41c0, 2, ARM_EXT_V4T, do_t_arit},
2020 {"sbc", 0x4180, 2, ARM_EXT_V4T, do_t_arit},
2021 {"stmia", 0xc000, 2, ARM_EXT_V4T, do_t_ldmstm},
2022 {"str", 0x0000, 2, ARM_EXT_V4T, do_t_str},
2023 {"strb", 0x0000, 2, ARM_EXT_V4T, do_t_strb},
2024 {"strh", 0x0000, 2, ARM_EXT_V4T, do_t_strh},
2025 {"swi", 0xdf00, 2, ARM_EXT_V4T, do_t_swi},
2026 {"sub", 0x0000, 2, ARM_EXT_V4T, do_t_sub},
2027 {"tst", T_OPCODE_TST, 2, ARM_EXT_V4T, do_t_arit},
2028 /* Pseudo ops: */
2029 {"adr", 0x0000, 2, ARM_EXT_V4T, do_t_adr},
2030 {"nop", 0x46C0, 2, ARM_EXT_V4T, do_t_nop}, /* mov r8,r8 */
2031 /* Thumb v2 (ARMv5T). */
2032 {"blx", 0, 0, ARM_EXT_V5T, do_t_blx},
2033 {"bkpt", 0xbe00, 2, ARM_EXT_V5T, do_t_bkpt},
2034 };
2035
2036 #define BAD_ARGS _("bad arguments to instruction")
2037 #define BAD_PC _("r15 not allowed here")
2038 #define BAD_COND _("instruction is not conditional")
2039 #define ERR_NO_ACCUM _("acc0 expected")
2040
2041 static struct hash_control * arm_ops_hsh = NULL;
2042 static struct hash_control * arm_tops_hsh = NULL;
2043 static struct hash_control * arm_cond_hsh = NULL;
2044 static struct hash_control * arm_shift_hsh = NULL;
2045 static struct hash_control * arm_psr_hsh = NULL;
2046
2047 /* This table describes all the machine specific pseudo-ops the assembler
2048 has to support. The fields are:
2049 pseudo-op name without dot
2050 function to call to execute this pseudo-op
2051 Integer arg to pass to the function. */
2052
2053 static void s_req PARAMS ((int));
2054 static void s_align PARAMS ((int));
2055 static void s_bss PARAMS ((int));
2056 static void s_even PARAMS ((int));
2057 static void s_ltorg PARAMS ((int));
2058 static void s_arm PARAMS ((int));
2059 static void s_thumb PARAMS ((int));
2060 static void s_code PARAMS ((int));
2061 static void s_force_thumb PARAMS ((int));
2062 static void s_thumb_func PARAMS ((int));
2063 static void s_thumb_set PARAMS ((int));
2064 static void arm_s_text PARAMS ((int));
2065 static void arm_s_data PARAMS ((int));
2066 #ifdef OBJ_ELF
2067 static void arm_s_section PARAMS ((int));
2068 static void s_arm_elf_cons PARAMS ((int));
2069 #endif
2070
2071 static int my_get_expression PARAMS ((expressionS *, char **));
2072
2073 const pseudo_typeS md_pseudo_table[] =
2074 {
2075 /* Never called becasue '.req' does not start line. */
2076 { "req", s_req, 0 },
2077 { "bss", s_bss, 0 },
2078 { "align", s_align, 0 },
2079 { "arm", s_arm, 0 },
2080 { "thumb", s_thumb, 0 },
2081 { "code", s_code, 0 },
2082 { "force_thumb", s_force_thumb, 0 },
2083 { "thumb_func", s_thumb_func, 0 },
2084 { "thumb_set", s_thumb_set, 0 },
2085 { "even", s_even, 0 },
2086 { "ltorg", s_ltorg, 0 },
2087 { "pool", s_ltorg, 0 },
2088 /* Allow for the effect of section changes. */
2089 { "text", arm_s_text, 0 },
2090 { "data", arm_s_data, 0 },
2091 #ifdef OBJ_ELF
2092 { "section", arm_s_section, 0 },
2093 { "section.s", arm_s_section, 0 },
2094 { "sect", arm_s_section, 0 },
2095 { "sect.s", arm_s_section, 0 },
2096 { "word", s_arm_elf_cons, 4 },
2097 { "long", s_arm_elf_cons, 4 },
2098 { "file", dwarf2_directive_file, 0 },
2099 { "loc", dwarf2_directive_loc, 0 },
2100 #else
2101 { "word", cons, 4},
2102 #endif
2103 { "extend", float_cons, 'x' },
2104 { "ldouble", float_cons, 'x' },
2105 { "packed", float_cons, 'p' },
2106 { 0, 0, 0 }
2107 };
2108
2109 /* Other internal functions. */
2110 static int arm_parse_extension PARAMS ((char *, int *));
2111 static int arm_parse_cpu PARAMS ((char *));
2112 static int arm_parse_arch PARAMS ((char *));
2113 static int arm_parse_fpu PARAMS ((char *));
2114
2115 /* Stuff needed to resolve the label ambiguity
2116 As:
2117 ...
2118 label: <insn>
2119 may differ from:
2120 ...
2121 label:
2122 <insn>
2123 */
2124
2125 symbolS * last_label_seen;
2126 static int label_is_thumb_function_name = false;
2127
2128 /* Literal stuff. */
2129
2130 #define MAX_LITERAL_POOL_SIZE 1024
2131
2132 typedef struct literalS
2133 {
2134 struct expressionS exp;
2135 struct arm_it * inst;
2136 } literalT;
2137
2138 literalT literals[MAX_LITERAL_POOL_SIZE];
2139
2140 /* Next free entry in the pool. */
2141 int next_literal_pool_place = 0;
2142
2143 /* Next literal pool number. */
2144 int lit_pool_num = 1;
2145
2146 symbolS * current_poolP = NULL;
2147
2148 static int
2149 add_to_lit_pool ()
2150 {
2151 int lit_count = 0;
2152
2153 if (current_poolP == NULL)
2154 current_poolP = symbol_create (FAKE_LABEL_NAME, undefined_section,
2155 (valueT) 0, &zero_address_frag);
2156
2157 /* Check if this literal value is already in the pool: */
2158 while (lit_count < next_literal_pool_place)
2159 {
2160 if (literals[lit_count].exp.X_op == inst.reloc.exp.X_op
2161 && inst.reloc.exp.X_op == O_constant
2162 && (literals[lit_count].exp.X_add_number
2163 == inst.reloc.exp.X_add_number)
2164 && literals[lit_count].exp.X_unsigned == inst.reloc.exp.X_unsigned)
2165 break;
2166
2167 if (literals[lit_count].exp.X_op == inst.reloc.exp.X_op
2168 && inst.reloc.exp.X_op == O_symbol
2169 && (literals[lit_count].exp.X_add_number
2170 == inst.reloc.exp.X_add_number)
2171 && (literals[lit_count].exp.X_add_symbol
2172 == inst.reloc.exp.X_add_symbol)
2173 && (literals[lit_count].exp.X_op_symbol
2174 == inst.reloc.exp.X_op_symbol))
2175 break;
2176
2177 lit_count++;
2178 }
2179
2180 if (lit_count == next_literal_pool_place) /* New entry. */
2181 {
2182 if (next_literal_pool_place >= MAX_LITERAL_POOL_SIZE)
2183 {
2184 inst.error = _("literal pool overflow");
2185 return FAIL;
2186 }
2187
2188 literals[next_literal_pool_place].exp = inst.reloc.exp;
2189 lit_count = next_literal_pool_place++;
2190 }
2191
2192 inst.reloc.exp.X_op = O_symbol;
2193 inst.reloc.exp.X_add_number = (lit_count) * 4 - 8;
2194 inst.reloc.exp.X_add_symbol = current_poolP;
2195
2196 return SUCCESS;
2197 }
2198
2199 /* Can't use symbol_new here, so have to create a symbol and then at
2200 a later date assign it a value. Thats what these functions do. */
2201
2202 static void
2203 symbol_locate (symbolP, name, segment, valu, frag)
2204 symbolS * symbolP;
2205 const char * name; /* It is copied, the caller can modify. */
2206 segT segment; /* Segment identifier (SEG_<something>). */
2207 valueT valu; /* Symbol value. */
2208 fragS * frag; /* Associated fragment. */
2209 {
2210 unsigned int name_length;
2211 char * preserved_copy_of_name;
2212
2213 name_length = strlen (name) + 1; /* +1 for \0. */
2214 obstack_grow (&notes, name, name_length);
2215 preserved_copy_of_name = obstack_finish (&notes);
2216 #ifdef STRIP_UNDERSCORE
2217 if (preserved_copy_of_name[0] == '_')
2218 preserved_copy_of_name++;
2219 #endif
2220
2221 #ifdef tc_canonicalize_symbol_name
2222 preserved_copy_of_name =
2223 tc_canonicalize_symbol_name (preserved_copy_of_name);
2224 #endif
2225
2226 S_SET_NAME (symbolP, preserved_copy_of_name);
2227
2228 S_SET_SEGMENT (symbolP, segment);
2229 S_SET_VALUE (symbolP, valu);
2230 symbol_clear_list_pointers(symbolP);
2231
2232 symbol_set_frag (symbolP, frag);
2233
2234 /* Link to end of symbol chain. */
2235 {
2236 extern int symbol_table_frozen;
2237 if (symbol_table_frozen)
2238 abort ();
2239 }
2240
2241 symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
2242
2243 obj_symbol_new_hook (symbolP);
2244
2245 #ifdef tc_symbol_new_hook
2246 tc_symbol_new_hook (symbolP);
2247 #endif
2248
2249 #ifdef DEBUG_SYMS
2250 verify_symbol_chain (symbol_rootP, symbol_lastP);
2251 #endif /* DEBUG_SYMS */
2252 }
2253
2254 /* Check that an immediate is valid.
2255 If so, convert it to the right format. */
2256
2257 static unsigned int
2258 validate_immediate (val)
2259 unsigned int val;
2260 {
2261 unsigned int a;
2262 unsigned int i;
2263
2264 #define rotate_left(v, n) (v << n | v >> (32 - n))
2265
2266 for (i = 0; i < 32; i += 2)
2267 if ((a = rotate_left (val, i)) <= 0xff)
2268 return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
2269
2270 return FAIL;
2271 }
2272
2273 /* Check to see if an immediate can be computed as two seperate immediate
2274 values, added together. We already know that this value cannot be
2275 computed by just one ARM instruction. */
2276
2277 static unsigned int
2278 validate_immediate_twopart (val, highpart)
2279 unsigned int val;
2280 unsigned int * highpart;
2281 {
2282 unsigned int a;
2283 unsigned int i;
2284
2285 for (i = 0; i < 32; i += 2)
2286 if (((a = rotate_left (val, i)) & 0xff) != 0)
2287 {
2288 if (a & 0xff00)
2289 {
2290 if (a & ~ 0xffff)
2291 continue;
2292 * highpart = (a >> 8) | ((i + 24) << 7);
2293 }
2294 else if (a & 0xff0000)
2295 {
2296 if (a & 0xff000000)
2297 continue;
2298 * highpart = (a >> 16) | ((i + 16) << 7);
2299 }
2300 else
2301 {
2302 assert (a & 0xff000000);
2303 * highpart = (a >> 24) | ((i + 8) << 7);
2304 }
2305
2306 return (a & 0xff) | (i << 7);
2307 }
2308
2309 return FAIL;
2310 }
2311
2312 static int
2313 validate_offset_imm (val, hwse)
2314 unsigned int val;
2315 int hwse;
2316 {
2317 if ((hwse && val > 255) || val > 4095)
2318 return FAIL;
2319 return val;
2320 }
2321
2322 static void
2323 s_req (a)
2324 int a ATTRIBUTE_UNUSED;
2325 {
2326 as_bad (_("invalid syntax for .req directive"));
2327 }
2328
2329 static void
2330 s_bss (ignore)
2331 int ignore ATTRIBUTE_UNUSED;
2332 {
2333 /* We don't support putting frags in the BSS segment, we fake it by
2334 marking in_bss, then looking at s_skip for clues. */
2335 subseg_set (bss_section, 0);
2336 demand_empty_rest_of_line ();
2337 }
2338
2339 static void
2340 s_even (ignore)
2341 int ignore ATTRIBUTE_UNUSED;
2342 {
2343 /* Never make frag if expect extra pass. */
2344 if (!need_pass_2)
2345 frag_align (1, 0, 0);
2346
2347 record_alignment (now_seg, 1);
2348
2349 demand_empty_rest_of_line ();
2350 }
2351
2352 static void
2353 s_ltorg (ignored)
2354 int ignored ATTRIBUTE_UNUSED;
2355 {
2356 int lit_count = 0;
2357 char sym_name[20];
2358
2359 if (current_poolP == NULL)
2360 return;
2361
2362 /* Align pool as you have word accesses.
2363 Only make a frag if we have to. */
2364 if (!need_pass_2)
2365 frag_align (2, 0, 0);
2366
2367 record_alignment (now_seg, 2);
2368
2369 sprintf (sym_name, "$$lit_\002%x", lit_pool_num++);
2370
2371 symbol_locate (current_poolP, sym_name, now_seg,
2372 (valueT) frag_now_fix (), frag_now);
2373 symbol_table_insert (current_poolP);
2374
2375 ARM_SET_THUMB (current_poolP, thumb_mode);
2376
2377 #if defined OBJ_COFF || defined OBJ_ELF
2378 ARM_SET_INTERWORK (current_poolP, support_interwork);
2379 #endif
2380
2381 while (lit_count < next_literal_pool_place)
2382 /* First output the expression in the instruction to the pool. */
2383 emit_expr (&(literals[lit_count++].exp), 4); /* .word */
2384
2385 next_literal_pool_place = 0;
2386 current_poolP = NULL;
2387 }
2388
2389 /* Same as s_align_ptwo but align 0 => align 2. */
2390
2391 static void
2392 s_align (unused)
2393 int unused ATTRIBUTE_UNUSED;
2394 {
2395 register int temp;
2396 register long temp_fill;
2397 long max_alignment = 15;
2398
2399 temp = get_absolute_expression ();
2400 if (temp > max_alignment)
2401 as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
2402 else if (temp < 0)
2403 {
2404 as_bad (_("alignment negative. 0 assumed."));
2405 temp = 0;
2406 }
2407
2408 if (*input_line_pointer == ',')
2409 {
2410 input_line_pointer++;
2411 temp_fill = get_absolute_expression ();
2412 }
2413 else
2414 temp_fill = 0;
2415
2416 if (!temp)
2417 temp = 2;
2418
2419 /* Only make a frag if we HAVE to. */
2420 if (temp && !need_pass_2)
2421 frag_align (temp, (int) temp_fill, 0);
2422 demand_empty_rest_of_line ();
2423
2424 record_alignment (now_seg, temp);
2425 }
2426
2427 static void
2428 s_force_thumb (ignore)
2429 int ignore ATTRIBUTE_UNUSED;
2430 {
2431 /* If we are not already in thumb mode go into it, EVEN if
2432 the target processor does not support thumb instructions.
2433 This is used by gcc/config/arm/lib1funcs.asm for example
2434 to compile interworking support functions even if the
2435 target processor should not support interworking. */
2436 if (! thumb_mode)
2437 {
2438 thumb_mode = 2;
2439
2440 record_alignment (now_seg, 1);
2441 }
2442
2443 demand_empty_rest_of_line ();
2444 }
2445
2446 static void
2447 s_thumb_func (ignore)
2448 int ignore ATTRIBUTE_UNUSED;
2449 {
2450 if (! thumb_mode)
2451 opcode_select (16);
2452
2453 /* The following label is the name/address of the start of a Thumb function.
2454 We need to know this for the interworking support. */
2455 label_is_thumb_function_name = true;
2456
2457 demand_empty_rest_of_line ();
2458 }
2459
2460 /* Perform a .set directive, but also mark the alias as
2461 being a thumb function. */
2462
2463 static void
2464 s_thumb_set (equiv)
2465 int equiv;
2466 {
2467 /* XXX the following is a duplicate of the code for s_set() in read.c
2468 We cannot just call that code as we need to get at the symbol that
2469 is created. */
2470 register char * name;
2471 register char delim;
2472 register char * end_name;
2473 register symbolS * symbolP;
2474
2475 /* Especial apologies for the random logic:
2476 This just grew, and could be parsed much more simply!
2477 Dean - in haste. */
2478 name = input_line_pointer;
2479 delim = get_symbol_end ();
2480 end_name = input_line_pointer;
2481 *end_name = delim;
2482
2483 SKIP_WHITESPACE ();
2484
2485 if (*input_line_pointer != ',')
2486 {
2487 *end_name = 0;
2488 as_bad (_("expected comma after name \"%s\""), name);
2489 *end_name = delim;
2490 ignore_rest_of_line ();
2491 return;
2492 }
2493
2494 input_line_pointer++;
2495 *end_name = 0;
2496
2497 if (name[0] == '.' && name[1] == '\0')
2498 {
2499 /* XXX - this should not happen to .thumb_set. */
2500 abort ();
2501 }
2502
2503 if ((symbolP = symbol_find (name)) == NULL
2504 && (symbolP = md_undefined_symbol (name)) == NULL)
2505 {
2506 #ifndef NO_LISTING
2507 /* When doing symbol listings, play games with dummy fragments living
2508 outside the normal fragment chain to record the file and line info
2509 for this symbol. */
2510 if (listing & LISTING_SYMBOLS)
2511 {
2512 extern struct list_info_struct * listing_tail;
2513 fragS * dummy_frag = (fragS *) xmalloc (sizeof (fragS));
2514
2515 memset (dummy_frag, 0, sizeof (fragS));
2516 dummy_frag->fr_type = rs_fill;
2517 dummy_frag->line = listing_tail;
2518 symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
2519 dummy_frag->fr_symbol = symbolP;
2520 }
2521 else
2522 #endif
2523 symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
2524
2525 #ifdef OBJ_COFF
2526 /* "set" symbols are local unless otherwise specified. */
2527 SF_SET_LOCAL (symbolP);
2528 #endif /* OBJ_COFF */
2529 } /* Make a new symbol. */
2530
2531 symbol_table_insert (symbolP);
2532
2533 * end_name = delim;
2534
2535 if (equiv
2536 && S_IS_DEFINED (symbolP)
2537 && S_GET_SEGMENT (symbolP) != reg_section)
2538 as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
2539
2540 pseudo_set (symbolP);
2541
2542 demand_empty_rest_of_line ();
2543
2544 /* XXX Now we come to the Thumb specific bit of code. */
2545
2546 THUMB_SET_FUNC (symbolP, 1);
2547 ARM_SET_THUMB (symbolP, 1);
2548 #if defined OBJ_ELF || defined OBJ_COFF
2549 ARM_SET_INTERWORK (symbolP, support_interwork);
2550 #endif
2551 }
2552
2553 /* If we change section we must dump the literal pool first. */
2554
2555 static void
2556 arm_s_text (ignore)
2557 int ignore;
2558 {
2559 if (now_seg != text_section)
2560 s_ltorg (0);
2561
2562 #ifdef OBJ_ELF
2563 obj_elf_text (ignore);
2564 #else
2565 s_text (ignore);
2566 #endif
2567 }
2568
2569 static void
2570 arm_s_data (ignore)
2571 int ignore;
2572 {
2573 if (flag_readonly_data_in_text)
2574 {
2575 if (now_seg != text_section)
2576 s_ltorg (0);
2577 }
2578 else if (now_seg != data_section)
2579 s_ltorg (0);
2580
2581 #ifdef OBJ_ELF
2582 obj_elf_data (ignore);
2583 #else
2584 s_data (ignore);
2585 #endif
2586 }
2587
2588 #ifdef OBJ_ELF
2589 static void
2590 arm_s_section (ignore)
2591 int ignore;
2592 {
2593 s_ltorg (0);
2594
2595 obj_elf_section (ignore);
2596 }
2597 #endif
2598
2599 static void
2600 opcode_select (width)
2601 int width;
2602 {
2603 switch (width)
2604 {
2605 case 16:
2606 if (! thumb_mode)
2607 {
2608 if (! (cpu_variant & ARM_EXT_V4T))
2609 as_bad (_("selected processor does not support THUMB opcodes"));
2610
2611 thumb_mode = 1;
2612 /* No need to force the alignment, since we will have been
2613 coming from ARM mode, which is word-aligned. */
2614 record_alignment (now_seg, 1);
2615 }
2616 break;
2617
2618 case 32:
2619 if (thumb_mode)
2620 {
2621 if ((cpu_variant & ARM_ALL) == ARM_EXT_V4T)
2622 as_bad (_("selected processor does not support ARM opcodes"));
2623
2624 thumb_mode = 0;
2625
2626 if (!need_pass_2)
2627 frag_align (2, 0, 0);
2628
2629 record_alignment (now_seg, 1);
2630 }
2631 break;
2632
2633 default:
2634 as_bad (_("invalid instruction size selected (%d)"), width);
2635 }
2636 }
2637
2638 static void
2639 s_arm (ignore)
2640 int ignore ATTRIBUTE_UNUSED;
2641 {
2642 opcode_select (32);
2643 demand_empty_rest_of_line ();
2644 }
2645
2646 static void
2647 s_thumb (ignore)
2648 int ignore ATTRIBUTE_UNUSED;
2649 {
2650 opcode_select (16);
2651 demand_empty_rest_of_line ();
2652 }
2653
2654 static void
2655 s_code (unused)
2656 int unused ATTRIBUTE_UNUSED;
2657 {
2658 register int temp;
2659
2660 temp = get_absolute_expression ();
2661 switch (temp)
2662 {
2663 case 16:
2664 case 32:
2665 opcode_select (temp);
2666 break;
2667
2668 default:
2669 as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
2670 }
2671 }
2672
2673 static void
2674 end_of_line (str)
2675 char *str;
2676 {
2677 skip_whitespace (str);
2678
2679 if (*str != '\0' && !inst.error)
2680 inst.error = _("garbage following instruction");
2681 }
2682
2683 static int
2684 skip_past_comma (str)
2685 char ** str;
2686 {
2687 char * p = * str, c;
2688 int comma = 0;
2689
2690 while ((c = *p) == ' ' || c == ',')
2691 {
2692 p++;
2693 if (c == ',' && comma++)
2694 return FAIL;
2695 }
2696
2697 if (c == '\0')
2698 return FAIL;
2699
2700 *str = p;
2701 return comma ? SUCCESS : FAIL;
2702 }
2703
2704 /* A standard register must be given at this point.
2705 SHIFT is the place to put it in inst.instruction.
2706 Restores input start point on error.
2707 Returns the reg#, or FAIL. */
2708
2709 static int
2710 reg_required_here (str, shift)
2711 char ** str;
2712 int shift;
2713 {
2714 static char buff [128]; /* XXX */
2715 int reg;
2716 char * start = * str;
2717
2718 if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_RN].htab)) != FAIL)
2719 {
2720 if (shift >= 0)
2721 inst.instruction |= reg << shift;
2722 return reg;
2723 }
2724
2725 /* Restore the start point, we may have got a reg of the wrong class. */
2726 *str = start;
2727
2728 /* In the few cases where we might be able to accept something else
2729 this error can be overridden. */
2730 sprintf (buff, _("register expected, not '%.100s'"), start);
2731 inst.error = buff;
2732
2733 return FAIL;
2734 }
2735
2736 static const struct asm_psr *
2737 arm_psr_parse (ccp)
2738 register char ** ccp;
2739 {
2740 char * start = * ccp;
2741 char c;
2742 char * p;
2743 const struct asm_psr * psr;
2744
2745 p = start;
2746
2747 /* Skip to the end of the next word in the input stream. */
2748 do
2749 {
2750 c = *p++;
2751 }
2752 while (ISALPHA (c) || c == '_');
2753
2754 /* Terminate the word. */
2755 *--p = 0;
2756
2757 /* CPSR's and SPSR's can now be lowercase. This is just a convenience
2758 feature for ease of use and backwards compatibility. */
2759 if (!strncmp (start, "cpsr", 4))
2760 strncpy (start, "CPSR", 4);
2761 else if (!strncmp (start, "spsr", 4))
2762 strncpy (start, "SPSR", 4);
2763
2764 /* Now locate the word in the psr hash table. */
2765 psr = (const struct asm_psr *) hash_find (arm_psr_hsh, start);
2766
2767 /* Restore the input stream. */
2768 *p = c;
2769
2770 /* If we found a valid match, advance the
2771 stream pointer past the end of the word. */
2772 *ccp = p;
2773
2774 return psr;
2775 }
2776
2777 /* Parse the input looking for a PSR flag. */
2778
2779 static int
2780 psr_required_here (str)
2781 char ** str;
2782 {
2783 char * start = * str;
2784 const struct asm_psr * psr;
2785
2786 psr = arm_psr_parse (str);
2787
2788 if (psr)
2789 {
2790 /* If this is the SPSR that is being modified, set the R bit. */
2791 if (! psr->cpsr)
2792 inst.instruction |= SPSR_BIT;
2793
2794 /* Set the psr flags in the MSR instruction. */
2795 inst.instruction |= psr->field << PSR_SHIFT;
2796
2797 return SUCCESS;
2798 }
2799
2800 /* In the few cases where we might be able to accept
2801 something else this error can be overridden. */
2802 inst.error = _("flag for {c}psr instruction expected");
2803
2804 /* Restore the start point. */
2805 *str = start;
2806 return FAIL;
2807 }
2808
2809 static int
2810 co_proc_number (str)
2811 char **str;
2812 {
2813 int processor, pchar;
2814 char *start;
2815
2816 skip_whitespace (*str);
2817 start = *str;
2818
2819 /* The data sheet seems to imply that just a number on its own is valid
2820 here, but the RISC iX assembler seems to accept a prefix 'p'. We will
2821 accept either. */
2822 if ((processor = arm_reg_parse (str, all_reg_maps[REG_TYPE_CP].htab))
2823 == FAIL)
2824 {
2825 *str = start;
2826
2827 pchar = *(*str)++;
2828 if (pchar >= '0' && pchar <= '9')
2829 {
2830 processor = pchar - '0';
2831 if (**str >= '0' && **str <= '9')
2832 {
2833 processor = processor * 10 + *(*str)++ - '0';
2834 if (processor > 15)
2835 {
2836 inst.error = _("illegal co-processor number");
2837 return FAIL;
2838 }
2839 }
2840 }
2841 else
2842 {
2843 inst.error = _("bad or missing co-processor number");
2844 return FAIL;
2845 }
2846 }
2847
2848 inst.instruction |= processor << 8;
2849 return SUCCESS;
2850 }
2851
2852 static int
2853 cp_opc_expr (str, where, length)
2854 char ** str;
2855 int where;
2856 int length;
2857 {
2858 expressionS expr;
2859
2860 skip_whitespace (* str);
2861
2862 memset (&expr, '\0', sizeof (expr));
2863
2864 if (my_get_expression (&expr, str))
2865 return FAIL;
2866 if (expr.X_op != O_constant)
2867 {
2868 inst.error = _("bad or missing expression");
2869 return FAIL;
2870 }
2871
2872 if ((expr.X_add_number & ((1 << length) - 1)) != expr.X_add_number)
2873 {
2874 inst.error = _("immediate co-processor expression too large");
2875 return FAIL;
2876 }
2877
2878 inst.instruction |= expr.X_add_number << where;
2879 return SUCCESS;
2880 }
2881
2882 static int
2883 cp_reg_required_here (str, where)
2884 char ** str;
2885 int where;
2886 {
2887 int reg;
2888 char * start = *str;
2889
2890 if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_CN].htab)) != FAIL)
2891 {
2892 inst.instruction |= reg << where;
2893 return reg;
2894 }
2895
2896 /* In the few cases where we might be able to accept something else
2897 this error can be overridden. */
2898 inst.error = _("co-processor register expected");
2899
2900 /* Restore the start point. */
2901 *str = start;
2902 return FAIL;
2903 }
2904
2905 static int
2906 fp_reg_required_here (str, where)
2907 char ** str;
2908 int where;
2909 {
2910 int reg;
2911 char * start = * str;
2912
2913 if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_FN].htab)) != FAIL)
2914 {
2915 inst.instruction |= reg << where;
2916 return reg;
2917 }
2918
2919 /* In the few cases where we might be able to accept something else
2920 this error can be overridden. */
2921 inst.error = _("floating point register expected");
2922
2923 /* Restore the start point. */
2924 *str = start;
2925 return FAIL;
2926 }
2927
2928 static int
2929 cp_address_offset (str)
2930 char ** str;
2931 {
2932 int offset;
2933
2934 skip_whitespace (* str);
2935
2936 if (! is_immediate_prefix (**str))
2937 {
2938 inst.error = _("immediate expression expected");
2939 return FAIL;
2940 }
2941
2942 (*str)++;
2943
2944 if (my_get_expression (& inst.reloc.exp, str))
2945 return FAIL;
2946
2947 if (inst.reloc.exp.X_op == O_constant)
2948 {
2949 offset = inst.reloc.exp.X_add_number;
2950
2951 if (offset & 3)
2952 {
2953 inst.error = _("co-processor address must be word aligned");
2954 return FAIL;
2955 }
2956
2957 if (offset > 1023 || offset < -1023)
2958 {
2959 inst.error = _("offset too large");
2960 return FAIL;
2961 }
2962
2963 if (offset >= 0)
2964 inst.instruction |= INDEX_UP;
2965 else
2966 offset = -offset;
2967
2968 inst.instruction |= offset >> 2;
2969 }
2970 else
2971 inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
2972
2973 return SUCCESS;
2974 }
2975
2976 static int
2977 cp_address_required_here (str, wb_ok)
2978 char ** str;
2979 int wb_ok;
2980 {
2981 char * p = * str;
2982 int pre_inc = 0;
2983 int write_back = 0;
2984
2985 if (*p == '[')
2986 {
2987 int reg;
2988
2989 p++;
2990 skip_whitespace (p);
2991
2992 if ((reg = reg_required_here (& p, 16)) == FAIL)
2993 return FAIL;
2994
2995 skip_whitespace (p);
2996
2997 if (*p == ']')
2998 {
2999 p++;
3000
3001 if (wb_ok && skip_past_comma (& p) == SUCCESS)
3002 {
3003 /* [Rn], #expr */
3004 write_back = WRITE_BACK;
3005
3006 if (reg == REG_PC)
3007 {
3008 inst.error = _("pc may not be used in post-increment");
3009 return FAIL;
3010 }
3011
3012 if (cp_address_offset (& p) == FAIL)
3013 return FAIL;
3014 }
3015 else
3016 pre_inc = PRE_INDEX | INDEX_UP;
3017 }
3018 else
3019 {
3020 /* '['Rn, #expr']'[!] */
3021
3022 if (skip_past_comma (& p) == FAIL)
3023 {
3024 inst.error = _("pre-indexed expression expected");
3025 return FAIL;
3026 }
3027
3028 pre_inc = PRE_INDEX;
3029
3030 if (cp_address_offset (& p) == FAIL)
3031 return FAIL;
3032
3033 skip_whitespace (p);
3034
3035 if (*p++ != ']')
3036 {
3037 inst.error = _("missing ]");
3038 return FAIL;
3039 }
3040
3041 skip_whitespace (p);
3042
3043 if (wb_ok && *p == '!')
3044 {
3045 if (reg == REG_PC)
3046 {
3047 inst.error = _("pc may not be used with write-back");
3048 return FAIL;
3049 }
3050
3051 p++;
3052 write_back = WRITE_BACK;
3053 }
3054 }
3055 }
3056 else
3057 {
3058 if (my_get_expression (&inst.reloc.exp, &p))
3059 return FAIL;
3060
3061 inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
3062 inst.reloc.exp.X_add_number -= 8; /* PC rel adjust. */
3063 inst.reloc.pc_rel = 1;
3064 inst.instruction |= (REG_PC << 16);
3065 pre_inc = PRE_INDEX;
3066 }
3067
3068 inst.instruction |= write_back | pre_inc;
3069 *str = p;
3070 return SUCCESS;
3071 }
3072
3073 static void
3074 do_empty (str)
3075 char * str;
3076 {
3077 /* Do nothing really. */
3078 end_of_line (str);
3079 return;
3080 }
3081
3082 static void
3083 do_mrs (str)
3084 char *str;
3085 {
3086 int skip = 0;
3087
3088 /* Only one syntax. */
3089 skip_whitespace (str);
3090
3091 if (reg_required_here (&str, 12) == FAIL)
3092 {
3093 inst.error = BAD_ARGS;
3094 return;
3095 }
3096
3097 if (skip_past_comma (&str) == FAIL)
3098 {
3099 inst.error = _("comma expected after register name");
3100 return;
3101 }
3102
3103 skip_whitespace (str);
3104
3105 if ( strcmp (str, "CPSR") == 0
3106 || strcmp (str, "SPSR") == 0
3107 /* Lower case versions for backwards compatability. */
3108 || strcmp (str, "cpsr") == 0
3109 || strcmp (str, "spsr") == 0)
3110 skip = 4;
3111
3112 /* This is for backwards compatability with older toolchains. */
3113 else if ( strcmp (str, "cpsr_all") == 0
3114 || strcmp (str, "spsr_all") == 0)
3115 skip = 8;
3116 else
3117 {
3118 inst.error = _("CPSR or SPSR expected");
3119 return;
3120 }
3121
3122 if (* str == 's' || * str == 'S')
3123 inst.instruction |= SPSR_BIT;
3124 str += skip;
3125
3126 end_of_line (str);
3127 }
3128
3129 /* Two possible forms:
3130 "{C|S}PSR_<field>, Rm",
3131 "{C|S}PSR_f, #expression". */
3132
3133 static void
3134 do_msr (str)
3135 char * str;
3136 {
3137 skip_whitespace (str);
3138
3139 if (psr_required_here (& str) == FAIL)
3140 return;
3141
3142 if (skip_past_comma (& str) == FAIL)
3143 {
3144 inst.error = _("comma missing after psr flags");
3145 return;
3146 }
3147
3148 skip_whitespace (str);
3149
3150 if (reg_required_here (& str, 0) != FAIL)
3151 {
3152 inst.error = NULL;
3153 end_of_line (str);
3154 return;
3155 }
3156
3157 if (! is_immediate_prefix (* str))
3158 {
3159 inst.error =
3160 _("only a register or immediate value can follow a psr flag");
3161 return;
3162 }
3163
3164 str ++;
3165 inst.error = NULL;
3166
3167 if (my_get_expression (& inst.reloc.exp, & str))
3168 {
3169 inst.error =
3170 _("only a register or immediate value can follow a psr flag");
3171 return;
3172 }
3173
3174 #if 0 /* The first edition of the ARM architecture manual stated that
3175 writing anything other than the flags with an immediate operation
3176 had UNPREDICTABLE effects. This constraint was removed in the
3177 second edition of the specification. */
3178 if ((cpu_variant & ARM_EXT_V5) != ARM_EXT_V5
3179 && inst.instruction & ((PSR_c | PSR_x | PSR_s) << PSR_SHIFT))
3180 {
3181 inst.error = _("immediate value cannot be used to set this field");
3182 return;
3183 }
3184 #endif
3185
3186 inst.instruction |= INST_IMMEDIATE;
3187
3188 if (inst.reloc.exp.X_add_symbol)
3189 {
3190 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
3191 inst.reloc.pc_rel = 0;
3192 }
3193 else
3194 {
3195 unsigned value = validate_immediate (inst.reloc.exp.X_add_number);
3196
3197 if (value == (unsigned) FAIL)
3198 {
3199 inst.error = _("invalid constant");
3200 return;
3201 }
3202
3203 inst.instruction |= value;
3204 }
3205
3206 inst.error = NULL;
3207 end_of_line (str);
3208 }
3209
3210 /* Long Multiply Parser
3211 UMULL RdLo, RdHi, Rm, Rs
3212 SMULL RdLo, RdHi, Rm, Rs
3213 UMLAL RdLo, RdHi, Rm, Rs
3214 SMLAL RdLo, RdHi, Rm, Rs. */
3215
3216 static void
3217 do_mull (str)
3218 char * str;
3219 {
3220 int rdlo, rdhi, rm, rs;
3221
3222 /* Only one format "rdlo, rdhi, rm, rs". */
3223 skip_whitespace (str);
3224
3225 if ((rdlo = reg_required_here (&str, 12)) == FAIL)
3226 {
3227 inst.error = BAD_ARGS;
3228 return;
3229 }
3230
3231 if (skip_past_comma (&str) == FAIL
3232 || (rdhi = reg_required_here (&str, 16)) == FAIL)
3233 {
3234 inst.error = BAD_ARGS;
3235 return;
3236 }
3237
3238 if (skip_past_comma (&str) == FAIL
3239 || (rm = reg_required_here (&str, 0)) == FAIL)
3240 {
3241 inst.error = BAD_ARGS;
3242 return;
3243 }
3244
3245 /* rdhi, rdlo and rm must all be different. */
3246 if (rdlo == rdhi || rdlo == rm || rdhi == rm)
3247 as_tsktsk (_("rdhi, rdlo and rm must all be different"));
3248
3249 if (skip_past_comma (&str) == FAIL
3250 || (rs = reg_required_here (&str, 8)) == FAIL)
3251 {
3252 inst.error = BAD_ARGS;
3253 return;
3254 }
3255
3256 if (rdhi == REG_PC || rdhi == REG_PC || rdhi == REG_PC || rdhi == REG_PC)
3257 {
3258 inst.error = BAD_PC;
3259 return;
3260 }
3261
3262 end_of_line (str);
3263 return;
3264 }
3265
3266 static void
3267 do_mul (str)
3268 char * str;
3269 {
3270 int rd, rm;
3271
3272 /* Only one format "rd, rm, rs". */
3273 skip_whitespace (str);
3274
3275 if ((rd = reg_required_here (&str, 16)) == FAIL)
3276 {
3277 inst.error = BAD_ARGS;
3278 return;
3279 }
3280
3281 if (rd == REG_PC)
3282 {
3283 inst.error = BAD_PC;
3284 return;
3285 }
3286
3287 if (skip_past_comma (&str) == FAIL
3288 || (rm = reg_required_here (&str, 0)) == FAIL)
3289 {
3290 inst.error = BAD_ARGS;
3291 return;
3292 }
3293
3294 if (rm == REG_PC)
3295 {
3296 inst.error = BAD_PC;
3297 return;
3298 }
3299
3300 if (rm == rd)
3301 as_tsktsk (_("rd and rm should be different in mul"));
3302
3303 if (skip_past_comma (&str) == FAIL
3304 || (rm = reg_required_here (&str, 8)) == FAIL)
3305 {
3306 inst.error = BAD_ARGS;
3307 return;
3308 }
3309
3310 if (rm == REG_PC)
3311 {
3312 inst.error = BAD_PC;
3313 return;
3314 }
3315
3316 end_of_line (str);
3317 return;
3318 }
3319
3320 static void
3321 do_mla (str)
3322 char * str;
3323 {
3324 int rd, rm;
3325
3326 /* Only one format "rd, rm, rs, rn". */
3327 skip_whitespace (str);
3328
3329 if ((rd = reg_required_here (&str, 16)) == FAIL)
3330 {
3331 inst.error = BAD_ARGS;
3332 return;
3333 }
3334
3335 if (rd == REG_PC)
3336 {
3337 inst.error = BAD_PC;
3338 return;
3339 }
3340
3341 if (skip_past_comma (&str) == FAIL
3342 || (rm = reg_required_here (&str, 0)) == FAIL)
3343 {
3344 inst.error = BAD_ARGS;
3345 return;
3346 }
3347
3348 if (rm == REG_PC)
3349 {
3350 inst.error = BAD_PC;
3351 return;
3352 }
3353
3354 if (rm == rd)
3355 as_tsktsk (_("rd and rm should be different in mla"));
3356
3357 if (skip_past_comma (&str) == FAIL
3358 || (rd = reg_required_here (&str, 8)) == FAIL
3359 || skip_past_comma (&str) == FAIL
3360 || (rm = reg_required_here (&str, 12)) == FAIL)
3361 {
3362 inst.error = BAD_ARGS;
3363 return;
3364 }
3365
3366 if (rd == REG_PC || rm == REG_PC)
3367 {
3368 inst.error = BAD_PC;
3369 return;
3370 }
3371
3372 end_of_line (str);
3373 return;
3374 }
3375
3376 /* Expects *str -> the characters "acc0", possibly with leading blanks.
3377 Advances *str to the next non-alphanumeric.
3378 Returns 0, or else FAIL (in which case sets inst.error).
3379
3380 (In a future XScale, there may be accumulators other than zero.
3381 At that time this routine and its callers can be upgraded to suit.) */
3382
3383 static int
3384 accum0_required_here (str)
3385 char ** str;
3386 {
3387 static char buff [128]; /* Note the address is taken. Hence, static. */
3388 char * p = * str;
3389 char c;
3390 int result = 0; /* The accum number. */
3391
3392 skip_whitespace (p);
3393
3394 *str = p; /* Advance caller's string pointer too. */
3395 c = *p++;
3396 while (ISALNUM (c))
3397 c = *p++;
3398
3399 *--p = 0; /* Aap nul into input buffer at non-alnum. */
3400
3401 if (! ( streq (*str, "acc0") || streq (*str, "ACC0")))
3402 {
3403 sprintf (buff, _("acc0 expected, not '%.100s'"), *str);
3404 inst.error = buff;
3405 result = FAIL;
3406 }
3407
3408 *p = c; /* Unzap. */
3409 *str = p; /* Caller's string pointer to after match. */
3410 return result;
3411 }
3412
3413 /* Expects **str -> after a comma. May be leading blanks.
3414 Advances *str, recognizing a load mode, and setting inst.instruction.
3415 Returns rn, or else FAIL (in which case may set inst.error
3416 and not advance str)
3417
3418 Note: doesn't know Rd, so no err checks that require such knowledge. */
3419
3420 static int
3421 ld_mode_required_here (string)
3422 char ** string;
3423 {
3424 char * str = * string;
3425 int rn;
3426 int pre_inc = 0;
3427
3428 skip_whitespace (str);
3429
3430 if (* str == '[')
3431 {
3432 str++;
3433
3434 skip_whitespace (str);
3435
3436 if ((rn = reg_required_here (& str, 16)) == FAIL)
3437 return FAIL;
3438
3439 skip_whitespace (str);
3440
3441 if (* str == ']')
3442 {
3443 str ++;
3444
3445 if (skip_past_comma (& str) == SUCCESS)
3446 {
3447 /* [Rn],... (post inc) */
3448 if (ldst_extend_v4 (&str) == FAIL)
3449 return FAIL;
3450 }
3451 else /* [Rn] */
3452 {
3453 skip_whitespace (str);
3454
3455 if (* str == '!')
3456 {
3457 str ++;
3458 inst.instruction |= WRITE_BACK;
3459 }
3460
3461 inst.instruction |= INDEX_UP | HWOFFSET_IMM;
3462 pre_inc = 1;
3463 }
3464 }
3465 else /* [Rn,...] */
3466 {
3467 if (skip_past_comma (& str) == FAIL)
3468 {
3469 inst.error = _("pre-indexed expression expected");
3470 return FAIL;
3471 }
3472
3473 pre_inc = 1;
3474
3475 if (ldst_extend_v4 (&str) == FAIL)
3476 return FAIL;
3477
3478 skip_whitespace (str);
3479
3480 if (* str ++ != ']')
3481 {
3482 inst.error = _("missing ]");
3483 return FAIL;
3484 }
3485
3486 skip_whitespace (str);
3487
3488 if (* str == '!')
3489 {
3490 str ++;
3491 inst.instruction |= WRITE_BACK;
3492 }
3493 }
3494 }
3495 else if (* str == '=') /* ldr's "r,=label" syntax */
3496 /* We should never reach here, because <text> = <expression> is
3497 caught gas/read.c read_a_source_file() as a .set operation. */
3498 return FAIL;
3499 else /* PC +- 8 bit immediate offset. */
3500 {
3501 if (my_get_expression (& inst.reloc.exp, & str))
3502 return FAIL;
3503
3504 inst.instruction |= HWOFFSET_IMM; /* The I bit. */
3505 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
3506 inst.reloc.exp.X_add_number -= 8; /* PC rel adjust. */
3507 inst.reloc.pc_rel = 1;
3508 inst.instruction |= (REG_PC << 16);
3509
3510 rn = REG_PC;
3511 pre_inc = 1;
3512 }
3513
3514 inst.instruction |= (pre_inc ? PRE_INDEX : 0);
3515 * string = str;
3516
3517 return rn;
3518 }
3519
3520 /* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
3521 SMLAxy{cond} Rd,Rm,Rs,Rn
3522 SMLAWy{cond} Rd,Rm,Rs,Rn
3523 Error if any register is R15. */
3524
3525 static void
3526 do_smla (str)
3527 char * str;
3528 {
3529 int rd, rm, rs, rn;
3530
3531 skip_whitespace (str);
3532
3533 if ((rd = reg_required_here (& str, 16)) == FAIL
3534 || skip_past_comma (& str) == FAIL
3535 || (rm = reg_required_here (& str, 0)) == FAIL
3536 || skip_past_comma (& str) == FAIL
3537 || (rs = reg_required_here (& str, 8)) == FAIL
3538 || skip_past_comma (& str) == FAIL
3539 || (rn = reg_required_here (& str, 12)) == FAIL)
3540 inst.error = BAD_ARGS;
3541
3542 else if (rd == REG_PC || rm == REG_PC || rs == REG_PC || rn == REG_PC)
3543 inst.error = BAD_PC;
3544
3545 else
3546 end_of_line (str);
3547 }
3548
3549 /* ARM V5E (El Segundo) signed-multiply-accumulate-long (argument parse)
3550 SMLALxy{cond} Rdlo,Rdhi,Rm,Rs
3551 Error if any register is R15.
3552 Warning if Rdlo == Rdhi. */
3553
3554 static void
3555 do_smlal (str)
3556 char * str;
3557 {
3558 int rdlo, rdhi, rm, rs;
3559
3560 skip_whitespace (str);
3561
3562 if ((rdlo = reg_required_here (& str, 12)) == FAIL
3563 || skip_past_comma (& str) == FAIL
3564 || (rdhi = reg_required_here (& str, 16)) == FAIL
3565 || skip_past_comma (& str) == FAIL
3566 || (rm = reg_required_here (& str, 0)) == FAIL
3567 || skip_past_comma (& str) == FAIL
3568 || (rs = reg_required_here (& str, 8)) == FAIL)
3569 {
3570 inst.error = BAD_ARGS;
3571 return;
3572 }
3573
3574 if (rdlo == REG_PC || rdhi == REG_PC || rm == REG_PC || rs == REG_PC)
3575 {
3576 inst.error = BAD_PC;
3577 return;
3578 }
3579
3580 if (rdlo == rdhi)
3581 as_tsktsk (_("rdhi and rdlo must be different"));
3582
3583 end_of_line (str);
3584 }
3585
3586 /* ARM V5E (El Segundo) signed-multiply (argument parse)
3587 SMULxy{cond} Rd,Rm,Rs
3588 Error if any register is R15. */
3589
3590 static void
3591 do_smul (str)
3592 char * str;
3593 {
3594 int rd, rm, rs;
3595
3596 skip_whitespace (str);
3597
3598 if ((rd = reg_required_here (& str, 16)) == FAIL
3599 || skip_past_comma (& str) == FAIL
3600 || (rm = reg_required_here (& str, 0)) == FAIL
3601 || skip_past_comma (& str) == FAIL
3602 || (rs = reg_required_here (& str, 8)) == FAIL)
3603 inst.error = BAD_ARGS;
3604
3605 else if (rd == REG_PC || rm == REG_PC || rs == REG_PC)
3606 inst.error = BAD_PC;
3607
3608 else
3609 end_of_line (str);
3610 }
3611
3612 /* ARM V5E (El Segundo) saturating-add/subtract (argument parse)
3613 Q[D]{ADD,SUB}{cond} Rd,Rm,Rn
3614 Error if any register is R15. */
3615
3616 static void
3617 do_qadd (str)
3618 char * str;
3619 {
3620 int rd, rm, rn;
3621
3622 skip_whitespace (str);
3623
3624 if ((rd = reg_required_here (& str, 12)) == FAIL
3625 || skip_past_comma (& str) == FAIL
3626 || (rm = reg_required_here (& str, 0)) == FAIL
3627 || skip_past_comma (& str) == FAIL
3628 || (rn = reg_required_here (& str, 16)) == FAIL)
3629 inst.error = BAD_ARGS;
3630
3631 else if (rd == REG_PC || rm == REG_PC || rn == REG_PC)
3632 inst.error = BAD_PC;
3633
3634 else
3635 end_of_line (str);
3636 }
3637
3638 /* ARM V5E (el Segundo)
3639 MCRRcc <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
3640 MRRCcc <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
3641
3642 These are equivalent to the XScale instructions MAR and MRA,
3643 respectively, when coproc == 0, opcode == 0, and CRm == 0.
3644
3645 Result unpredicatable if Rd or Rn is R15. */
3646
3647 static void
3648 do_co_reg2c (str)
3649 char * str;
3650 {
3651 int rd, rn;
3652
3653 skip_whitespace (str);
3654
3655 if (co_proc_number (& str) == FAIL)
3656 {
3657 if (!inst.error)
3658 inst.error = BAD_ARGS;
3659 return;
3660 }
3661
3662 if (skip_past_comma (& str) == FAIL
3663 || cp_opc_expr (& str, 4, 4) == FAIL)
3664 {
3665 if (!inst.error)
3666 inst.error = BAD_ARGS;
3667 return;
3668 }
3669
3670 if (skip_past_comma (& str) == FAIL
3671 || (rd = reg_required_here (& str, 12)) == FAIL)
3672 {
3673 if (!inst.error)
3674 inst.error = BAD_ARGS;
3675 return;
3676 }
3677
3678 if (skip_past_comma (& str) == FAIL
3679 || (rn = reg_required_here (& str, 16)) == FAIL)
3680 {
3681 if (!inst.error)
3682 inst.error = BAD_ARGS;
3683 return;
3684 }
3685
3686 /* Unpredictable result if rd or rn is R15. */
3687 if (rd == REG_PC || rn == REG_PC)
3688 as_tsktsk
3689 (_("Warning: instruction unpredictable when using r15"));
3690
3691 if (skip_past_comma (& str) == FAIL
3692 || cp_reg_required_here (& str, 0) == FAIL)
3693 {
3694 if (!inst.error)
3695 inst.error = BAD_ARGS;
3696 return;
3697 }
3698
3699 end_of_line (str);
3700 }
3701
3702 /* ARM V5 count-leading-zeroes instruction (argument parse)
3703 CLZ{<cond>} <Rd>, <Rm>
3704 Condition defaults to COND_ALWAYS.
3705 Error if Rd or Rm are R15. */
3706
3707 static void
3708 do_clz (str)
3709 char * str;
3710 {
3711 int rd, rm;
3712
3713 skip_whitespace (str);
3714
3715 if (((rd = reg_required_here (& str, 12)) == FAIL)
3716 || (skip_past_comma (& str) == FAIL)
3717 || ((rm = reg_required_here (& str, 0)) == FAIL))
3718 inst.error = BAD_ARGS;
3719
3720 else if (rd == REG_PC || rm == REG_PC )
3721 inst.error = BAD_PC;
3722
3723 else
3724 end_of_line (str);
3725 }
3726
3727 /* ARM V5 (argument parse)
3728 LDC2{L} <coproc>, <CRd>, <addressing mode>
3729 STC2{L} <coproc>, <CRd>, <addressing mode>
3730 Instruction is not conditional, and has 0xf in the codition field.
3731 Otherwise, it's the same as LDC/STC. */
3732
3733 static void
3734 do_lstc2 (str)
3735 char * str;
3736 {
3737 skip_whitespace (str);
3738
3739 if (co_proc_number (& str) == FAIL)
3740 {
3741 if (!inst.error)
3742 inst.error = BAD_ARGS;
3743 }
3744 else if (skip_past_comma (& str) == FAIL
3745 || cp_reg_required_here (& str, 12) == FAIL)
3746 {
3747 if (!inst.error)
3748 inst.error = BAD_ARGS;
3749 }
3750 else if (skip_past_comma (& str) == FAIL
3751 || cp_address_required_here (&str, CP_WB_OK) == FAIL)
3752 {
3753 if (! inst.error)
3754 inst.error = BAD_ARGS;
3755 }
3756 else
3757 end_of_line (str);
3758 }
3759
3760 /* ARM V5 (argument parse)
3761 CDP2 <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>, <opcode_2>
3762 Instruction is not conditional, and has 0xf in the condition field.
3763 Otherwise, it's the same as CDP. */
3764
3765 static void
3766 do_cdp2 (str)
3767 char * str;
3768 {
3769 skip_whitespace (str);
3770
3771 if (co_proc_number (& str) == FAIL)
3772 {
3773 if (!inst.error)
3774 inst.error = BAD_ARGS;
3775 return;
3776 }
3777
3778 if (skip_past_comma (& str) == FAIL
3779 || cp_opc_expr (& str, 20,4) == FAIL)
3780 {
3781 if (!inst.error)
3782 inst.error = BAD_ARGS;
3783 return;
3784 }
3785
3786 if (skip_past_comma (& str) == FAIL
3787 || cp_reg_required_here (& str, 12) == FAIL)
3788 {
3789 if (!inst.error)
3790 inst.error = BAD_ARGS;
3791 return;
3792 }
3793
3794 if (skip_past_comma (& str) == FAIL
3795 || cp_reg_required_here (& str, 16) == FAIL)
3796 {
3797 if (!inst.error)
3798 inst.error = BAD_ARGS;
3799 return;
3800 }
3801
3802 if (skip_past_comma (& str) == FAIL
3803 || cp_reg_required_here (& str, 0) == FAIL)
3804 {
3805 if (!inst.error)
3806 inst.error = BAD_ARGS;
3807 return;
3808 }
3809
3810 if (skip_past_comma (& str) == SUCCESS)
3811 {
3812 if (cp_opc_expr (& str, 5, 3) == FAIL)
3813 {
3814 if (!inst.error)
3815 inst.error = BAD_ARGS;
3816 return;
3817 }
3818 }
3819
3820 end_of_line (str);
3821 }
3822
3823 /* ARM V5 (argument parse)
3824 MCR2 <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>, <opcode_2>
3825 MRC2 <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>, <opcode_2>
3826 Instruction is not conditional, and has 0xf in the condition field.
3827 Otherwise, it's the same as MCR/MRC. */
3828
3829 static void
3830 do_co_reg2 (str)
3831 char * str;
3832 {
3833 skip_whitespace (str);
3834
3835 if (co_proc_number (& str) == FAIL)
3836 {
3837 if (!inst.error)
3838 inst.error = BAD_ARGS;
3839 return;
3840 }
3841
3842 if (skip_past_comma (& str) == FAIL
3843 || cp_opc_expr (& str, 21, 3) == FAIL)
3844 {
3845 if (!inst.error)
3846 inst.error = BAD_ARGS;
3847 return;
3848 }
3849
3850 if (skip_past_comma (& str) == FAIL
3851 || reg_required_here (& str, 12) == FAIL)
3852 {
3853 if (!inst.error)
3854 inst.error = BAD_ARGS;
3855 return;
3856 }
3857
3858 if (skip_past_comma (& str) == FAIL
3859 || cp_reg_required_here (& str, 16) == FAIL)
3860 {
3861 if (!inst.error)
3862 inst.error = BAD_ARGS;
3863 return;
3864 }
3865
3866 if (skip_past_comma (& str) == FAIL
3867 || cp_reg_required_here (& str, 0) == FAIL)
3868 {
3869 if (!inst.error)
3870 inst.error = BAD_ARGS;
3871 return;
3872 }
3873
3874 if (skip_past_comma (& str) == SUCCESS)
3875 {
3876 if (cp_opc_expr (& str, 5, 3) == FAIL)
3877 {
3878 if (!inst.error)
3879 inst.error = BAD_ARGS;
3880 return;
3881 }
3882 }
3883
3884 end_of_line (str);
3885 }
3886
3887 /* ARM v5TEJ. Jump to Jazelle code. */
3888 static void
3889 do_bxj (str)
3890 char * str;
3891 {
3892 int reg;
3893
3894 skip_whitespace (str);
3895
3896 if ((reg = reg_required_here (&str, 0)) == FAIL)
3897 {
3898 inst.error = BAD_ARGS;
3899 return;
3900 }
3901
3902 /* Note - it is not illegal to do a "bxj pc". Useless, but not illegal. */
3903 if (reg == REG_PC)
3904 as_tsktsk (_("use of r15 in bxj is not really useful"));
3905
3906 end_of_line (str);
3907 }
3908
3909 /* THUMB V5 breakpoint instruction (argument parse)
3910 BKPT <immed_8>. */
3911
3912 static void
3913 do_t_bkpt (str)
3914 char * str;
3915 {
3916 expressionS expr;
3917 unsigned long number;
3918
3919 skip_whitespace (str);
3920
3921 /* Allow optional leading '#'. */
3922 if (is_immediate_prefix (*str))
3923 str ++;
3924
3925 memset (& expr, '\0', sizeof (expr));
3926 if (my_get_expression (& expr, & str) || (expr.X_op != O_constant))
3927 {
3928 inst.error = _("bad or missing expression");
3929 return;
3930 }
3931
3932 number = expr.X_add_number;
3933
3934 /* Check it fits an 8 bit unsigned. */
3935 if (number != (number & 0xff))
3936 {
3937 inst.error = _("immediate value out of range");
3938 return;
3939 }
3940
3941 inst.instruction |= number;
3942
3943 end_of_line (str);
3944 }
3945
3946 /* ARM V5 branch-link-exchange (argument parse) for BLX(1) only.
3947 Expects inst.instruction is set for BLX(1).
3948 Note: this is cloned from do_branch, and the reloc changed to be a
3949 new one that can cope with setting one extra bit (the H bit). */
3950
3951 static void
3952 do_branch25 (str)
3953 char * str;
3954 {
3955 if (my_get_expression (& inst.reloc.exp, & str))
3956 return;
3957
3958 #ifdef OBJ_ELF
3959 {
3960 char * save_in;
3961
3962 /* ScottB: February 5, 1998 */
3963 /* Check to see of PLT32 reloc required for the instruction. */
3964
3965 /* arm_parse_reloc() works on input_line_pointer.
3966 We actually want to parse the operands to the branch instruction
3967 passed in 'str'. Save the input pointer and restore it later. */
3968 save_in = input_line_pointer;
3969 input_line_pointer = str;
3970
3971 if (inst.reloc.exp.X_op == O_symbol
3972 && *str == '('
3973 && arm_parse_reloc () == BFD_RELOC_ARM_PLT32)
3974 {
3975 inst.reloc.type = BFD_RELOC_ARM_PLT32;
3976 inst.reloc.pc_rel = 0;
3977 /* Modify str to point to after parsed operands, otherwise
3978 end_of_line() will complain about the (PLT) left in str. */
3979 str = input_line_pointer;
3980 }
3981 else
3982 {
3983 inst.reloc.type = BFD_RELOC_ARM_PCREL_BLX;
3984 inst.reloc.pc_rel = 1;
3985 }
3986
3987 input_line_pointer = save_in;
3988 }
3989 #else
3990 inst.reloc.type = BFD_RELOC_ARM_PCREL_BLX;
3991 inst.reloc.pc_rel = 1;
3992 #endif /* OBJ_ELF */
3993
3994 end_of_line (str);
3995 }
3996
3997 /* ARM V5 branch-link-exchange instruction (argument parse)
3998 BLX <target_addr> ie BLX(1)
3999 BLX{<condition>} <Rm> ie BLX(2)
4000 Unfortunately, there are two different opcodes for this mnemonic.
4001 So, the insns[].value is not used, and the code here zaps values
4002 into inst.instruction.
4003 Also, the <target_addr> can be 25 bits, hence has its own reloc. */
4004
4005 static void
4006 do_blx (str)
4007 char * str;
4008 {
4009 char * mystr = str;
4010 int rm;
4011
4012 skip_whitespace (mystr);
4013 rm = reg_required_here (& mystr, 0);
4014
4015 /* The above may set inst.error. Ignore his opinion. */
4016 inst.error = 0;
4017
4018 if (rm != FAIL)
4019 {
4020 /* Arg is a register.
4021 Use the condition code our caller put in inst.instruction.
4022 Pass ourselves off as a BX with a funny opcode. */
4023 inst.instruction |= 0x012fff30;
4024 do_bx (str);
4025 }
4026 else
4027 {
4028 /* This must be is BLX <target address>, no condition allowed. */
4029 if (inst.instruction != COND_ALWAYS)
4030 {
4031 inst.error = BAD_COND;
4032 return;
4033 }
4034
4035 inst.instruction = 0xfafffffe;
4036
4037 /* Process like a B/BL, but with a different reloc.
4038 Note that B/BL expecte fffffe, not 0, offset in the opcode table. */
4039 do_branch25 (str);
4040 }
4041 }
4042
4043 /* ARM V5 Thumb BLX (argument parse)
4044 BLX <target_addr> which is BLX(1)
4045 BLX <Rm> which is BLX(2)
4046 Unfortunately, there are two different opcodes for this mnemonic.
4047 So, the tinsns[].value is not used, and the code here zaps values
4048 into inst.instruction. */
4049
4050 static void
4051 do_t_blx (str)
4052 char * str;
4053 {
4054 char * mystr = str;
4055 int rm;
4056
4057 skip_whitespace (mystr);
4058 inst.instruction = 0x4780;
4059
4060 /* Note that this call is to the ARM register recognizer. BLX(2)
4061 uses the ARM register space, not the Thumb one, so a call to
4062 thumb_reg() would be wrong. */
4063 rm = reg_required_here (& mystr, 3);
4064 inst.error = 0;
4065
4066 if (rm != FAIL)
4067 {
4068 /* It's BLX(2). The .instruction was zapped with rm & is final. */
4069 inst.size = 2;
4070 }
4071 else
4072 {
4073 /* No ARM register. This must be BLX(1). Change the .instruction. */
4074 inst.instruction = 0xf7ffeffe;
4075 inst.size = 4;
4076
4077 if (my_get_expression (& inst.reloc.exp, & mystr))
4078 return;
4079
4080 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BLX;
4081 inst.reloc.pc_rel = 1;
4082 }
4083
4084 end_of_line (mystr);
4085 }
4086
4087 /* ARM V5 breakpoint instruction (argument parse)
4088 BKPT <16 bit unsigned immediate>
4089 Instruction is not conditional.
4090 The bit pattern given in insns[] has the COND_ALWAYS condition,
4091 and it is an error if the caller tried to override that. */
4092
4093 static void
4094 do_bkpt (str)
4095 char * str;
4096 {
4097 expressionS expr;
4098 unsigned long number;
4099
4100 skip_whitespace (str);
4101
4102 /* Allow optional leading '#'. */
4103 if (is_immediate_prefix (* str))
4104 str++;
4105
4106 memset (& expr, '\0', sizeof (expr));
4107
4108 if (my_get_expression (& expr, & str) || (expr.X_op != O_constant))
4109 {
4110 inst.error = _("bad or missing expression");
4111 return;
4112 }
4113
4114 number = expr.X_add_number;
4115
4116 /* Check it fits a 16 bit unsigned. */
4117 if (number != (number & 0xffff))
4118 {
4119 inst.error = _("immediate value out of range");
4120 return;
4121 }
4122
4123 /* Top 12 of 16 bits to bits 19:8. */
4124 inst.instruction |= (number & 0xfff0) << 4;
4125
4126 /* Bottom 4 of 16 bits to bits 3:0. */
4127 inst.instruction |= number & 0xf;
4128
4129 end_of_line (str);
4130 }
4131
4132 /* Xscale multiply-accumulate (argument parse)
4133 MIAcc acc0,Rm,Rs
4134 MIAPHcc acc0,Rm,Rs
4135 MIAxycc acc0,Rm,Rs. */
4136
4137 static void
4138 do_xsc_mia (str)
4139 char * str;
4140 {
4141 int rs;
4142 int rm;
4143
4144 if (accum0_required_here (& str) == FAIL)
4145 inst.error = ERR_NO_ACCUM;
4146
4147 else if (skip_past_comma (& str) == FAIL
4148 || (rm = reg_required_here (& str, 0)) == FAIL)
4149 inst.error = BAD_ARGS;
4150
4151 else if (skip_past_comma (& str) == FAIL
4152 || (rs = reg_required_here (& str, 12)) == FAIL)
4153 inst.error = BAD_ARGS;
4154
4155 /* inst.instruction has now been zapped with both rm and rs. */
4156 else if (rm == REG_PC || rs == REG_PC)
4157 inst.error = BAD_PC; /* Undefined result if rm or rs is R15. */
4158
4159 else
4160 end_of_line (str);
4161 }
4162
4163 /* Xscale move-accumulator-register (argument parse)
4164
4165 MARcc acc0,RdLo,RdHi. */
4166
4167 static void
4168 do_xsc_mar (str)
4169 char * str;
4170 {
4171 int rdlo, rdhi;
4172
4173 if (accum0_required_here (& str) == FAIL)
4174 inst.error = ERR_NO_ACCUM;
4175
4176 else if (skip_past_comma (& str) == FAIL
4177 || (rdlo = reg_required_here (& str, 12)) == FAIL)
4178 inst.error = BAD_ARGS;
4179
4180 else if (skip_past_comma (& str) == FAIL
4181 || (rdhi = reg_required_here (& str, 16)) == FAIL)
4182 inst.error = BAD_ARGS;
4183
4184 /* inst.instruction has now been zapped with both rdlo and rdhi. */
4185 else if (rdlo == REG_PC || rdhi == REG_PC)
4186 inst.error = BAD_PC; /* Undefined result if rdlo or rdhi is R15. */
4187
4188 else
4189 end_of_line (str);
4190 }
4191
4192 /* Xscale move-register-accumulator (argument parse)
4193
4194 MRAcc RdLo,RdHi,acc0. */
4195
4196 static void
4197 do_xsc_mra (str)
4198 char * str;
4199 {
4200 int rdlo;
4201 int rdhi;
4202
4203 skip_whitespace (str);
4204
4205 if ((rdlo = reg_required_here (& str, 12)) == FAIL)
4206 inst.error = BAD_ARGS;
4207
4208 else if (skip_past_comma (& str) == FAIL
4209 || (rdhi = reg_required_here (& str, 16)) == FAIL)
4210 inst.error = BAD_ARGS;
4211
4212 else if (skip_past_comma (& str) == FAIL
4213 || accum0_required_here (& str) == FAIL)
4214 inst.error = ERR_NO_ACCUM;
4215
4216 /* inst.instruction has now been zapped with both rdlo and rdhi. */
4217 else if (rdlo == rdhi)
4218 inst.error = BAD_ARGS; /* Undefined result if 2 writes to same reg. */
4219
4220 else if (rdlo == REG_PC || rdhi == REG_PC)
4221 inst.error = BAD_PC; /* Undefined result if rdlo or rdhi is R15. */
4222 else
4223 end_of_line (str);
4224 }
4225
4226 /* ARMv5TE: Preload-Cache
4227
4228 PLD <addr_mode>
4229
4230 Syntactically, like LDR with B=1, W=0, L=1. */
4231
4232 static void
4233 do_pld (str)
4234 char * str;
4235 {
4236 int rd;
4237
4238 skip_whitespace (str);
4239
4240 if (* str != '[')
4241 {
4242 inst.error = _("'[' expected after PLD mnemonic");
4243 return;
4244 }
4245
4246 ++str;
4247 skip_whitespace (str);
4248
4249 if ((rd = reg_required_here (& str, 16)) == FAIL)
4250 return;
4251
4252 skip_whitespace (str);
4253
4254 if (*str == ']')
4255 {
4256 /* [Rn], ... ? */
4257 ++str;
4258 skip_whitespace (str);
4259
4260 /* Post-indexed addressing is not allowed with PLD. */
4261 if (skip_past_comma (&str) == SUCCESS)
4262 {
4263 inst.error
4264 = _("post-indexed expression used in preload instruction");
4265 return;
4266 }
4267 else if (*str == '!') /* [Rn]! */
4268 {
4269 inst.error = _("writeback used in preload instruction");
4270 ++str;
4271 }
4272 else /* [Rn] */
4273 inst.instruction |= INDEX_UP | PRE_INDEX;
4274 }
4275 else /* [Rn, ...] */
4276 {
4277 if (skip_past_comma (& str) == FAIL)
4278 {
4279 inst.error = _("pre-indexed expression expected");
4280 return;
4281 }
4282
4283 if (ldst_extend (&str) == FAIL)
4284 return;
4285
4286 skip_whitespace (str);
4287
4288 if (* str != ']')
4289 {
4290 inst.error = _("missing ]");
4291 return;
4292 }
4293
4294 ++ str;
4295 skip_whitespace (str);
4296
4297 if (* str == '!') /* [Rn]! */
4298 {
4299 inst.error = _("writeback used in preload instruction");
4300 ++ str;
4301 }
4302
4303 inst.instruction |= PRE_INDEX;
4304 }
4305
4306 end_of_line (str);
4307 }
4308
4309 /* ARMv5TE load-consecutive (argument parse)
4310 Mode is like LDRH.
4311
4312 LDRccD R, mode
4313 STRccD R, mode. */
4314
4315 static void
4316 do_ldrd (str)
4317 char * str;
4318 {
4319 int rd;
4320 int rn;
4321
4322 skip_whitespace (str);
4323
4324 if ((rd = reg_required_here (& str, 12)) == FAIL)
4325 {
4326 inst.error = BAD_ARGS;
4327 return;
4328 }
4329
4330 if (skip_past_comma (& str) == FAIL
4331 || (rn = ld_mode_required_here (& str)) == FAIL)
4332 {
4333 if (!inst.error)
4334 inst.error = BAD_ARGS;
4335 return;
4336 }
4337
4338 /* inst.instruction has now been zapped with Rd and the addressing mode. */
4339 if (rd & 1) /* Unpredictable result if Rd is odd. */
4340 {
4341 inst.error = _("destination register must be even");
4342 return;
4343 }
4344
4345 if (rd == REG_LR)
4346 {
4347 inst.error = _("r14 not allowed here");
4348 return;
4349 }
4350
4351 if (((rd == rn) || (rd + 1 == rn))
4352 && ((inst.instruction & WRITE_BACK)
4353 || (!(inst.instruction & PRE_INDEX))))
4354 as_warn (_("pre/post-indexing used when modified address register is destination"));
4355
4356 /* For an index-register load, the index register must not overlap the
4357 destination (even if not write-back). */
4358 if ((inst.instruction & V4_STR_BIT) == 0
4359 && (inst.instruction & HWOFFSET_IMM) == 0)
4360 {
4361 int rm = inst.instruction & 0x0000000f;
4362
4363 if (rm == rd || (rm == rd + 1))
4364 as_warn (_("ldrd destination registers must not overlap index register"));
4365 }
4366
4367 end_of_line (str);
4368 }
4369
4370 /* Returns the index into fp_values of a floating point number,
4371 or -1 if not in the table. */
4372
4373 static int
4374 my_get_float_expression (str)
4375 char ** str;
4376 {
4377 LITTLENUM_TYPE words[MAX_LITTLENUMS];
4378 char * save_in;
4379 expressionS exp;
4380 int i;
4381 int j;
4382
4383 memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
4384
4385 /* Look for a raw floating point number. */
4386 if ((save_in = atof_ieee (*str, 'x', words)) != NULL
4387 && is_end_of_line[(unsigned char) *save_in])
4388 {
4389 for (i = 0; i < NUM_FLOAT_VALS; i++)
4390 {
4391 for (j = 0; j < MAX_LITTLENUMS; j++)
4392 {
4393 if (words[j] != fp_values[i][j])
4394 break;
4395 }
4396
4397 if (j == MAX_LITTLENUMS)
4398 {
4399 *str = save_in;
4400 return i;
4401 }
4402 }
4403 }
4404
4405 /* Try and parse a more complex expression, this will probably fail
4406 unless the code uses a floating point prefix (eg "0f"). */
4407 save_in = input_line_pointer;
4408 input_line_pointer = *str;
4409 if (expression (&exp) == absolute_section
4410 && exp.X_op == O_big
4411 && exp.X_add_number < 0)
4412 {
4413 /* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
4414 Ditto for 15. */
4415 if (gen_to_words (words, 5, (long) 15) == 0)
4416 {
4417 for (i = 0; i < NUM_FLOAT_VALS; i++)
4418 {
4419 for (j = 0; j < MAX_LITTLENUMS; j++)
4420 {
4421 if (words[j] != fp_values[i][j])
4422 break;
4423 }
4424
4425 if (j == MAX_LITTLENUMS)
4426 {
4427 *str = input_line_pointer;
4428 input_line_pointer = save_in;
4429 return i;
4430 }
4431 }
4432 }
4433 }
4434
4435 *str = input_line_pointer;
4436 input_line_pointer = save_in;
4437 return -1;
4438 }
4439
4440 /* Return true if anything in the expression is a bignum. */
4441
4442 static int
4443 walk_no_bignums (sp)
4444 symbolS * sp;
4445 {
4446 if (symbol_get_value_expression (sp)->X_op == O_big)
4447 return 1;
4448
4449 if (symbol_get_value_expression (sp)->X_add_symbol)
4450 {
4451 return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
4452 || (symbol_get_value_expression (sp)->X_op_symbol
4453 && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
4454 }
4455
4456 return 0;
4457 }
4458
4459 static int in_my_get_expression = 0;
4460
4461 static int
4462 my_get_expression (ep, str)
4463 expressionS * ep;
4464 char ** str;
4465 {
4466 char * save_in;
4467 segT seg;
4468
4469 save_in = input_line_pointer;
4470 input_line_pointer = *str;
4471 in_my_get_expression = 1;
4472 seg = expression (ep);
4473 in_my_get_expression = 0;
4474
4475 if (ep->X_op == O_illegal)
4476 {
4477 /* We found a bad expression in md_operand(). */
4478 *str = input_line_pointer;
4479 input_line_pointer = save_in;
4480 return 1;
4481 }
4482
4483 #ifdef OBJ_AOUT
4484 if (seg != absolute_section
4485 && seg != text_section
4486 && seg != data_section
4487 && seg != bss_section
4488 && seg != undefined_section)
4489 {
4490 inst.error = _("bad_segment");
4491 *str = input_line_pointer;
4492 input_line_pointer = save_in;
4493 return 1;
4494 }
4495 #endif
4496
4497 /* Get rid of any bignums now, so that we don't generate an error for which
4498 we can't establish a line number later on. Big numbers are never valid
4499 in instructions, which is where this routine is always called. */
4500 if (ep->X_op == O_big
4501 || (ep->X_add_symbol
4502 && (walk_no_bignums (ep->X_add_symbol)
4503 || (ep->X_op_symbol
4504 && walk_no_bignums (ep->X_op_symbol)))))
4505 {
4506 inst.error = _("invalid constant");
4507 *str = input_line_pointer;
4508 input_line_pointer = save_in;
4509 return 1;
4510 }
4511
4512 *str = input_line_pointer;
4513 input_line_pointer = save_in;
4514 return 0;
4515 }
4516
4517 /* We handle all bad expressions here, so that we can report the faulty
4518 instruction in the error message. */
4519 void
4520 md_operand (expr)
4521 expressionS *expr;
4522 {
4523 if (in_my_get_expression)
4524 {
4525 expr->X_op = O_illegal;
4526 if (inst.error == NULL)
4527 inst.error = _("bad expression");
4528 }
4529 }
4530
4531 /* UNRESTRICT should be one if <shift> <register> is permitted for this
4532 instruction. */
4533
4534 static int
4535 decode_shift (str, unrestrict)
4536 char ** str;
4537 int unrestrict;
4538 {
4539 const struct asm_shift_name * shift;
4540 char * p;
4541 char c;
4542
4543 skip_whitespace (* str);
4544
4545 for (p = * str; ISALPHA (* p); p ++)
4546 ;
4547
4548 if (p == * str)
4549 {
4550 inst.error = _("shift expression expected");
4551 return FAIL;
4552 }
4553
4554 c = * p;
4555 * p = '\0';
4556 shift = (const struct asm_shift_name *) hash_find (arm_shift_hsh, * str);
4557 * p = c;
4558
4559 if (shift == NULL)
4560 {
4561 inst.error = _("shift expression expected");
4562 return FAIL;
4563 }
4564
4565 assert (shift->properties->index == shift_properties[shift->properties->index].index);
4566
4567 if (shift->properties->index == SHIFT_RRX)
4568 {
4569 * str = p;
4570 inst.instruction |= shift->properties->bit_field;
4571 return SUCCESS;
4572 }
4573
4574 skip_whitespace (p);
4575
4576 if (unrestrict && reg_required_here (& p, 8) != FAIL)
4577 {
4578 inst.instruction |= shift->properties->bit_field | SHIFT_BY_REG;
4579 * str = p;
4580 return SUCCESS;
4581 }
4582 else if (! is_immediate_prefix (* p))
4583 {
4584 inst.error = (unrestrict
4585 ? _("shift requires register or #expression")
4586 : _("shift requires #expression"));
4587 * str = p;
4588 return FAIL;
4589 }
4590
4591 inst.error = NULL;
4592 p ++;
4593
4594 if (my_get_expression (& inst.reloc.exp, & p))
4595 return FAIL;
4596
4597 /* Validate some simple #expressions. */
4598 if (inst.reloc.exp.X_op == O_constant)
4599 {
4600 unsigned num = inst.reloc.exp.X_add_number;
4601
4602 /* Reject operations greater than 32. */
4603 if (num > 32
4604 /* Reject a shift of 0 unless the mode allows it. */
4605 || (num == 0 && shift->properties->allows_0 == 0)
4606 /* Reject a shift of 32 unless the mode allows it. */
4607 || (num == 32 && shift->properties->allows_32 == 0)
4608 )
4609 {
4610 /* As a special case we allow a shift of zero for
4611 modes that do not support it to be recoded as an
4612 logical shift left of zero (ie nothing). We warn
4613 about this though. */
4614 if (num == 0)
4615 {
4616 as_warn (_("shift of 0 ignored."));
4617 shift = & shift_names[0];
4618 assert (shift->properties->index == SHIFT_LSL);
4619 }
4620 else
4621 {
4622 inst.error = _("invalid immediate shift");
4623 return FAIL;
4624 }
4625 }
4626
4627 /* Shifts of 32 are encoded as 0, for those shifts that
4628 support it. */
4629 if (num == 32)
4630 num = 0;
4631
4632 inst.instruction |= (num << 7) | shift->properties->bit_field;
4633 }
4634 else
4635 {
4636 inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
4637 inst.reloc.pc_rel = 0;
4638 inst.instruction |= shift->properties->bit_field;
4639 }
4640
4641 * str = p;
4642 return SUCCESS;
4643 }
4644
4645 /* Do those data_ops which can take a negative immediate constant
4646 by altering the instuction. A bit of a hack really.
4647 MOV <-> MVN
4648 AND <-> BIC
4649 ADC <-> SBC
4650 by inverting the second operand, and
4651 ADD <-> SUB
4652 CMP <-> CMN
4653 by negating the second operand. */
4654
4655 static int
4656 negate_data_op (instruction, value)
4657 unsigned long * instruction;
4658 unsigned long value;
4659 {
4660 int op, new_inst;
4661 unsigned long negated, inverted;
4662
4663 negated = validate_immediate (-value);
4664 inverted = validate_immediate (~value);
4665
4666 op = (*instruction >> DATA_OP_SHIFT) & 0xf;
4667 switch (op)
4668 {
4669 /* First negates. */
4670 case OPCODE_SUB: /* ADD <-> SUB */
4671 new_inst = OPCODE_ADD;
4672 value = negated;
4673 break;
4674
4675 case OPCODE_ADD:
4676 new_inst = OPCODE_SUB;
4677 value = negated;
4678 break;
4679
4680 case OPCODE_CMP: /* CMP <-> CMN */
4681 new_inst = OPCODE_CMN;
4682 value = negated;
4683 break;
4684
4685 case OPCODE_CMN:
4686 new_inst = OPCODE_CMP;
4687 value = negated;
4688 break;
4689
4690 /* Now Inverted ops. */
4691 case OPCODE_MOV: /* MOV <-> MVN */
4692 new_inst = OPCODE_MVN;
4693 value = inverted;
4694 break;
4695
4696 case OPCODE_MVN:
4697 new_inst = OPCODE_MOV;
4698 value = inverted;
4699 break;
4700
4701 case OPCODE_AND: /* AND <-> BIC */
4702 new_inst = OPCODE_BIC;
4703 value = inverted;
4704 break;
4705
4706 case OPCODE_BIC:
4707 new_inst = OPCODE_AND;
4708 value = inverted;
4709 break;
4710
4711 case OPCODE_ADC: /* ADC <-> SBC */
4712 new_inst = OPCODE_SBC;
4713 value = inverted;
4714 break;
4715
4716 case OPCODE_SBC:
4717 new_inst = OPCODE_ADC;
4718 value = inverted;
4719 break;
4720
4721 /* We cannot do anything. */
4722 default:
4723 return FAIL;
4724 }
4725
4726 if (value == (unsigned) FAIL)
4727 return FAIL;
4728
4729 *instruction &= OPCODE_MASK;
4730 *instruction |= new_inst << DATA_OP_SHIFT;
4731 return value;
4732 }
4733
4734 static int
4735 data_op2 (str)
4736 char ** str;
4737 {
4738 int value;
4739 expressionS expr;
4740
4741 skip_whitespace (* str);
4742
4743 if (reg_required_here (str, 0) != FAIL)
4744 {
4745 if (skip_past_comma (str) == SUCCESS)
4746 /* Shift operation on register. */
4747 return decode_shift (str, NO_SHIFT_RESTRICT);
4748
4749 return SUCCESS;
4750 }
4751 else
4752 {
4753 /* Immediate expression. */
4754 if (is_immediate_prefix (**str))
4755 {
4756 (*str)++;
4757 inst.error = NULL;
4758
4759 if (my_get_expression (&inst.reloc.exp, str))
4760 return FAIL;
4761
4762 if (inst.reloc.exp.X_add_symbol)
4763 {
4764 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
4765 inst.reloc.pc_rel = 0;
4766 }
4767 else
4768 {
4769 if (skip_past_comma (str) == SUCCESS)
4770 {
4771 /* #x, y -- ie explicit rotation by Y. */
4772 if (my_get_expression (&expr, str))
4773 return FAIL;
4774
4775 if (expr.X_op != O_constant)
4776 {
4777 inst.error = _("constant expression expected");
4778 return FAIL;
4779 }
4780
4781 /* Rotate must be a multiple of 2. */
4782 if (((unsigned) expr.X_add_number) > 30
4783 || (expr.X_add_number & 1) != 0
4784 || ((unsigned) inst.reloc.exp.X_add_number) > 255)
4785 {
4786 inst.error = _("invalid constant");
4787 return FAIL;
4788 }
4789 inst.instruction |= INST_IMMEDIATE;
4790 inst.instruction |= inst.reloc.exp.X_add_number;
4791 inst.instruction |= expr.X_add_number << 7;
4792 return SUCCESS;
4793 }
4794
4795 /* Implicit rotation, select a suitable one. */
4796 value = validate_immediate (inst.reloc.exp.X_add_number);
4797
4798 if (value == FAIL)
4799 {
4800 /* Can't be done. Perhaps the code reads something like
4801 "add Rd, Rn, #-n", where "sub Rd, Rn, #n" would be OK. */
4802 if ((value = negate_data_op (&inst.instruction,
4803 inst.reloc.exp.X_add_number))
4804 == FAIL)
4805 {
4806 inst.error = _("invalid constant");
4807 return FAIL;
4808 }
4809 }
4810
4811 inst.instruction |= value;
4812 }
4813
4814 inst.instruction |= INST_IMMEDIATE;
4815 return SUCCESS;
4816 }
4817
4818 (*str)++;
4819 inst.error = _("register or shift expression expected");
4820 return FAIL;
4821 }
4822 }
4823
4824 static int
4825 fp_op2 (str)
4826 char ** str;
4827 {
4828 skip_whitespace (* str);
4829
4830 if (fp_reg_required_here (str, 0) != FAIL)
4831 return SUCCESS;
4832 else
4833 {
4834 /* Immediate expression. */
4835 if (*((*str)++) == '#')
4836 {
4837 int i;
4838
4839 inst.error = NULL;
4840
4841 skip_whitespace (* str);
4842
4843 /* First try and match exact strings, this is to guarantee
4844 that some formats will work even for cross assembly. */
4845
4846 for (i = 0; fp_const[i]; i++)
4847 {
4848 if (strncmp (*str, fp_const[i], strlen (fp_const[i])) == 0)
4849 {
4850 char *start = *str;
4851
4852 *str += strlen (fp_const[i]);
4853 if (is_end_of_line[(unsigned char) **str])
4854 {
4855 inst.instruction |= i + 8;
4856 return SUCCESS;
4857 }
4858 *str = start;
4859 }
4860 }
4861
4862 /* Just because we didn't get a match doesn't mean that the
4863 constant isn't valid, just that it is in a format that we
4864 don't automatically recognize. Try parsing it with
4865 the standard expression routines. */
4866 if ((i = my_get_float_expression (str)) >= 0)
4867 {
4868 inst.instruction |= i + 8;
4869 return SUCCESS;
4870 }
4871
4872 inst.error = _("invalid floating point immediate expression");
4873 return FAIL;
4874 }
4875 inst.error =
4876 _("floating point register or immediate expression expected");
4877 return FAIL;
4878 }
4879 }
4880
4881 static void
4882 do_arit (str)
4883 char * str;
4884 {
4885 skip_whitespace (str);
4886
4887 if (reg_required_here (&str, 12) == FAIL
4888 || skip_past_comma (&str) == FAIL
4889 || reg_required_here (&str, 16) == FAIL
4890 || skip_past_comma (&str) == FAIL
4891 || data_op2 (&str) == FAIL)
4892 {
4893 if (!inst.error)
4894 inst.error = BAD_ARGS;
4895 return;
4896 }
4897
4898 end_of_line (str);
4899 return;
4900 }
4901
4902 static void
4903 do_adr (str)
4904 char * str;
4905 {
4906 /* This is a pseudo-op of the form "adr rd, label" to be converted
4907 into a relative address of the form "add rd, pc, #label-.-8". */
4908 skip_whitespace (str);
4909
4910 if (reg_required_here (&str, 12) == FAIL
4911 || skip_past_comma (&str) == FAIL
4912 || my_get_expression (&inst.reloc.exp, &str))
4913 {
4914 if (!inst.error)
4915 inst.error = BAD_ARGS;
4916 return;
4917 }
4918
4919 /* Frag hacking will turn this into a sub instruction if the offset turns
4920 out to be negative. */
4921 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
4922 inst.reloc.exp.X_add_number -= 8; /* PC relative adjust. */
4923 inst.reloc.pc_rel = 1;
4924
4925 end_of_line (str);
4926 }
4927
4928 static void
4929 do_adrl (str)
4930 char * str;
4931 {
4932 /* This is a pseudo-op of the form "adrl rd, label" to be converted
4933 into a relative address of the form:
4934 add rd, pc, #low(label-.-8)"
4935 add rd, rd, #high(label-.-8)" */
4936
4937 skip_whitespace (str);
4938
4939 if (reg_required_here (&str, 12) == FAIL
4940 || skip_past_comma (&str) == FAIL
4941 || my_get_expression (&inst.reloc.exp, &str))
4942 {
4943 if (!inst.error)
4944 inst.error = BAD_ARGS;
4945
4946 return;
4947 }
4948
4949 end_of_line (str);
4950 /* Frag hacking will turn this into a sub instruction if the offset turns
4951 out to be negative. */
4952 inst.reloc.type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
4953 inst.reloc.exp.X_add_number -= 8; /* PC relative adjust */
4954 inst.reloc.pc_rel = 1;
4955 inst.size = INSN_SIZE * 2;
4956
4957 return;
4958 }
4959
4960 static void
4961 do_cmp (str)
4962 char * str;
4963 {
4964 skip_whitespace (str);
4965
4966 if (reg_required_here (&str, 16) == FAIL)
4967 {
4968 if (!inst.error)
4969 inst.error = BAD_ARGS;
4970 return;
4971 }
4972
4973 if (skip_past_comma (&str) == FAIL
4974 || data_op2 (&str) == FAIL)
4975 {
4976 if (!inst.error)
4977 inst.error = BAD_ARGS;
4978 return;
4979 }
4980
4981 end_of_line (str);
4982 return;
4983 }
4984
4985 static void
4986 do_mov (str)
4987 char * str;
4988 {
4989 skip_whitespace (str);
4990
4991 if (reg_required_here (&str, 12) == FAIL)
4992 {
4993 if (!inst.error)
4994 inst.error = BAD_ARGS;
4995 return;
4996 }
4997
4998 if (skip_past_comma (&str) == FAIL
4999 || data_op2 (&str) == FAIL)
5000 {
5001 if (!inst.error)
5002 inst.error = BAD_ARGS;
5003 return;
5004 }
5005
5006 end_of_line (str);
5007 return;
5008 }
5009
5010 static int
5011 ldst_extend (str)
5012 char ** str;
5013 {
5014 int add = INDEX_UP;
5015
5016 switch (**str)
5017 {
5018 case '#':
5019 case '$':
5020 (*str)++;
5021 if (my_get_expression (& inst.reloc.exp, str))
5022 return FAIL;
5023
5024 if (inst.reloc.exp.X_op == O_constant)
5025 {
5026 int value = inst.reloc.exp.X_add_number;
5027
5028 if (value < -4095 || value > 4095)
5029 {
5030 inst.error = _("address offset too large");
5031 return FAIL;
5032 }
5033
5034 if (value < 0)
5035 {
5036 value = -value;
5037 add = 0;
5038 }
5039
5040 inst.instruction |= add | value;
5041 }
5042 else
5043 {
5044 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
5045 inst.reloc.pc_rel = 0;
5046 }
5047 return SUCCESS;
5048
5049 case '-':
5050 add = 0;
5051 /* Fall through. */
5052
5053 case '+':
5054 (*str)++;
5055 /* Fall through. */
5056
5057 default:
5058 if (reg_required_here (str, 0) == FAIL)
5059 return FAIL;
5060
5061 inst.instruction |= add | OFFSET_REG;
5062 if (skip_past_comma (str) == SUCCESS)
5063 return decode_shift (str, SHIFT_RESTRICT);
5064
5065 return SUCCESS;
5066 }
5067 }
5068
5069 static void
5070 do_ldst (str)
5071 char * str;
5072 {
5073 int pre_inc = 0;
5074 int conflict_reg;
5075 int value;
5076
5077 skip_whitespace (str);
5078
5079 if ((conflict_reg = reg_required_here (&str, 12)) == FAIL)
5080 {
5081 if (!inst.error)
5082 inst.error = BAD_ARGS;
5083 return;
5084 }
5085
5086 if (skip_past_comma (&str) == FAIL)
5087 {
5088 inst.error = _("address expected");
5089 return;
5090 }
5091
5092 if (*str == '[')
5093 {
5094 int reg;
5095
5096 str++;
5097
5098 skip_whitespace (str);
5099
5100 if ((reg = reg_required_here (&str, 16)) == FAIL)
5101 return;
5102
5103 /* Conflicts can occur on stores as well as loads. */
5104 conflict_reg = (conflict_reg == reg);
5105
5106 skip_whitespace (str);
5107
5108 if (*str == ']')
5109 {
5110 str ++;
5111
5112 if (skip_past_comma (&str) == SUCCESS)
5113 {
5114 /* [Rn],... (post inc) */
5115 if (ldst_extend (&str) == FAIL)
5116 return;
5117 if (conflict_reg)
5118 as_warn (_("%s register same as write-back base"),
5119 ((inst.instruction & LOAD_BIT)
5120 ? _("destination") : _("source")));
5121 }
5122 else
5123 {
5124 /* [Rn] */
5125 skip_whitespace (str);
5126
5127 if (*str == '!')
5128 {
5129 if (conflict_reg)
5130 as_warn (_("%s register same as write-back base"),
5131 ((inst.instruction & LOAD_BIT)
5132 ? _("destination") : _("source")));
5133 str++;
5134 inst.instruction |= WRITE_BACK;
5135 }
5136
5137 inst.instruction |= INDEX_UP;
5138 pre_inc = 1;
5139 }
5140 }
5141 else
5142 {
5143 /* [Rn,...] */
5144 if (skip_past_comma (&str) == FAIL)
5145 {
5146 inst.error = _("pre-indexed expression expected");
5147 return;
5148 }
5149
5150 pre_inc = 1;
5151 if (ldst_extend (&str) == FAIL)
5152 return;
5153
5154 skip_whitespace (str);
5155
5156 if (*str++ != ']')
5157 {
5158 inst.error = _("missing ]");
5159 return;
5160 }
5161
5162 skip_whitespace (str);
5163
5164 if (*str == '!')
5165 {
5166 if (conflict_reg)
5167 as_warn (_("%s register same as write-back base"),
5168 ((inst.instruction & LOAD_BIT)
5169 ? _("destination") : _("source")));
5170 str++;
5171 inst.instruction |= WRITE_BACK;
5172 }
5173 }
5174 }
5175 else if (*str == '=')
5176 {
5177 if ((inst.instruction & LOAD_BIT) == 0)
5178 {
5179 inst.error = _("invalid pseudo operation");
5180 return;
5181 }
5182
5183 /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
5184 str++;
5185
5186 skip_whitespace (str);
5187
5188 if (my_get_expression (&inst.reloc.exp, &str))
5189 return;
5190
5191 if (inst.reloc.exp.X_op != O_constant
5192 && inst.reloc.exp.X_op != O_symbol)
5193 {
5194 inst.error = _("constant expression expected");
5195 return;
5196 }
5197
5198 if (inst.reloc.exp.X_op == O_constant)
5199 {
5200 value = validate_immediate (inst.reloc.exp.X_add_number);
5201
5202 if (value != FAIL)
5203 {
5204 /* This can be done with a mov instruction. */
5205 inst.instruction &= LITERAL_MASK;
5206 inst.instruction |= (INST_IMMEDIATE
5207 | (OPCODE_MOV << DATA_OP_SHIFT));
5208 inst.instruction |= value & 0xfff;
5209 end_of_line (str);
5210 return;
5211 }
5212
5213 value = validate_immediate (~inst.reloc.exp.X_add_number);
5214
5215 if (value != FAIL)
5216 {
5217 /* This can be done with a mvn instruction. */
5218 inst.instruction &= LITERAL_MASK;
5219 inst.instruction |= (INST_IMMEDIATE
5220 | (OPCODE_MVN << DATA_OP_SHIFT));
5221 inst.instruction |= value & 0xfff;
5222 end_of_line (str);
5223 return;
5224 }
5225 }
5226
5227 /* Insert into literal pool. */
5228 if (add_to_lit_pool () == FAIL)
5229 {
5230 if (!inst.error)
5231 inst.error = _("literal pool insertion failed");
5232 return;
5233 }
5234
5235 /* Change the instruction exp to point to the pool. */
5236 inst.reloc.type = BFD_RELOC_ARM_LITERAL;
5237 inst.reloc.pc_rel = 1;
5238 inst.instruction |= (REG_PC << 16);
5239 pre_inc = 1;
5240 }
5241 else
5242 {
5243 if (my_get_expression (&inst.reloc.exp, &str))
5244 return;
5245
5246 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
5247 #ifndef TE_WINCE
5248 /* PC rel adjust. */
5249 inst.reloc.exp.X_add_number -= 8;
5250 #endif
5251 inst.reloc.pc_rel = 1;
5252 inst.instruction |= (REG_PC << 16);
5253 pre_inc = 1;
5254 }
5255
5256 inst.instruction |= (pre_inc ? PRE_INDEX : 0);
5257 end_of_line (str);
5258 return;
5259 }
5260
5261 static void
5262 do_ldstt (str)
5263 char * str;
5264 {
5265 int conflict_reg;
5266
5267 skip_whitespace (str);
5268
5269 if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
5270 {
5271 if (!inst.error)
5272 inst.error = BAD_ARGS;
5273 return;
5274 }
5275
5276 if (skip_past_comma (& str) == FAIL)
5277 {
5278 inst.error = _("address expected");
5279 return;
5280 }
5281
5282 if (*str == '[')
5283 {
5284 int reg;
5285
5286 str++;
5287
5288 skip_whitespace (str);
5289
5290 if ((reg = reg_required_here (&str, 16)) == FAIL)
5291 return;
5292
5293 /* ldrt/strt always use post-indexed addressing, so if the base is
5294 the same as Rd, we warn. */
5295 if (conflict_reg == reg)
5296 as_warn (_("%s register same as write-back base"),
5297 ((inst.instruction & LOAD_BIT)
5298 ? _("destination") : _("source")));
5299
5300 skip_whitespace (str);
5301
5302 if (*str == ']')
5303 {
5304 str ++;
5305
5306 if (skip_past_comma (&str) == SUCCESS)
5307 {
5308 /* [Rn],... (post inc) */
5309 if (ldst_extend (&str) == FAIL)
5310 return;
5311 }
5312 else
5313 {
5314 /* [Rn] */
5315 skip_whitespace (str);
5316
5317 /* Skip a write-back '!'. */
5318 if (*str == '!')
5319 str++;
5320
5321 inst.instruction |= INDEX_UP;
5322 }
5323 }
5324 else
5325 {
5326 inst.error = _("post-indexed expression expected");
5327 return;
5328 }
5329 }
5330 else
5331 {
5332 inst.error = _("post-indexed expression expected");
5333 return;
5334 }
5335
5336 end_of_line (str);
5337 return;
5338 }
5339
5340 static int
5341 ldst_extend_v4 (str)
5342 char ** str;
5343 {
5344 int add = INDEX_UP;
5345
5346 switch (**str)
5347 {
5348 case '#':
5349 case '$':
5350 (*str)++;
5351 if (my_get_expression (& inst.reloc.exp, str))
5352 return FAIL;
5353
5354 if (inst.reloc.exp.X_op == O_constant)
5355 {
5356 int value = inst.reloc.exp.X_add_number;
5357
5358 if (value < -255 || value > 255)
5359 {
5360 inst.error = _("address offset too large");
5361 return FAIL;
5362 }
5363
5364 if (value < 0)
5365 {
5366 value = -value;
5367 add = 0;
5368 }
5369
5370 /* Halfword and signextension instructions have the
5371 immediate value split across bits 11..8 and bits 3..0. */
5372 inst.instruction |= (add | HWOFFSET_IMM
5373 | ((value >> 4) << 8) | (value & 0xF));
5374 }
5375 else
5376 {
5377 inst.instruction |= HWOFFSET_IMM;
5378 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
5379 inst.reloc.pc_rel = 0;
5380 }
5381 return SUCCESS;
5382
5383 case '-':
5384 add = 0;
5385 /* Fall through. */
5386
5387 case '+':
5388 (*str)++;
5389 /* Fall through. */
5390
5391 default:
5392 if (reg_required_here (str, 0) == FAIL)
5393 return FAIL;
5394
5395 inst.instruction |= add;
5396 return SUCCESS;
5397 }
5398 }
5399
5400 /* Halfword and signed-byte load/store operations. */
5401 static void
5402 do_ldstv4 (str)
5403 char * str;
5404 {
5405 int pre_inc = 0;
5406 int conflict_reg;
5407 int value;
5408
5409 skip_whitespace (str);
5410
5411 if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
5412 {
5413 if (!inst.error)
5414 inst.error = BAD_ARGS;
5415 return;
5416 }
5417
5418 if (skip_past_comma (& str) == FAIL)
5419 {
5420 inst.error = _("address expected");
5421 return;
5422 }
5423
5424 if (*str == '[')
5425 {
5426 int reg;
5427
5428 str++;
5429
5430 skip_whitespace (str);
5431
5432 if ((reg = reg_required_here (&str, 16)) == FAIL)
5433 return;
5434
5435 /* Conflicts can occur on stores as well as loads. */
5436 conflict_reg = (conflict_reg == reg);
5437
5438 skip_whitespace (str);
5439
5440 if (*str == ']')
5441 {
5442 str ++;
5443
5444 if (skip_past_comma (&str) == SUCCESS)
5445 {
5446 /* [Rn],... (post inc) */
5447 if (ldst_extend_v4 (&str) == FAIL)
5448 return;
5449 if (conflict_reg)
5450 as_warn (_("%s register same as write-back base"),
5451 ((inst.instruction & LOAD_BIT)
5452 ? _("destination") : _("source")));
5453 }
5454 else
5455 {
5456 /* [Rn] */
5457 inst.instruction |= HWOFFSET_IMM;
5458
5459 skip_whitespace (str);
5460
5461 if (*str == '!')
5462 {
5463 if (conflict_reg)
5464 as_warn (_("%s register same as write-back base"),
5465 ((inst.instruction & LOAD_BIT)
5466 ? _("destination") : _("source")));
5467 str++;
5468 inst.instruction |= WRITE_BACK;
5469 }
5470
5471 inst.instruction |= INDEX_UP;
5472 pre_inc = 1;
5473 }
5474 }
5475 else
5476 {
5477 /* [Rn,...] */
5478 if (skip_past_comma (&str) == FAIL)
5479 {
5480 inst.error = _("pre-indexed expression expected");
5481 return;
5482 }
5483
5484 pre_inc = 1;
5485 if (ldst_extend_v4 (&str) == FAIL)
5486 return;
5487
5488 skip_whitespace (str);
5489
5490 if (*str++ != ']')
5491 {
5492 inst.error = _("missing ]");
5493 return;
5494 }
5495
5496 skip_whitespace (str);
5497
5498 if (*str == '!')
5499 {
5500 if (conflict_reg)
5501 as_warn (_("%s register same as write-back base"),
5502 ((inst.instruction & LOAD_BIT)
5503 ? _("destination") : _("source")));
5504 str++;
5505 inst.instruction |= WRITE_BACK;
5506 }
5507 }
5508 }
5509 else if (*str == '=')
5510 {
5511 if ((inst.instruction & LOAD_BIT) == 0)
5512 {
5513 inst.error = _("invalid pseudo operation");
5514 return;
5515 }
5516
5517 /* XXX Does this work correctly for half-word/byte ops? */
5518 /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
5519 str++;
5520
5521 skip_whitespace (str);
5522
5523 if (my_get_expression (&inst.reloc.exp, &str))
5524 return;
5525
5526 if (inst.reloc.exp.X_op != O_constant
5527 && inst.reloc.exp.X_op != O_symbol)
5528 {
5529 inst.error = _("constant expression expected");
5530 return;
5531 }
5532
5533 if (inst.reloc.exp.X_op == O_constant)
5534 {
5535 value = validate_immediate (inst.reloc.exp.X_add_number);
5536
5537 if (value != FAIL)
5538 {
5539 /* This can be done with a mov instruction. */
5540 inst.instruction &= LITERAL_MASK;
5541 inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
5542 inst.instruction |= value & 0xfff;
5543 end_of_line (str);
5544 return;
5545 }
5546
5547 value = validate_immediate (~ inst.reloc.exp.X_add_number);
5548
5549 if (value != FAIL)
5550 {
5551 /* This can be done with a mvn instruction. */
5552 inst.instruction &= LITERAL_MASK;
5553 inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
5554 inst.instruction |= value & 0xfff;
5555 end_of_line (str);
5556 return;
5557 }
5558 }
5559
5560 /* Insert into literal pool. */
5561 if (add_to_lit_pool () == FAIL)
5562 {
5563 if (!inst.error)
5564 inst.error = _("literal pool insertion failed");
5565 return;
5566 }
5567
5568 /* Change the instruction exp to point to the pool. */
5569 inst.instruction |= HWOFFSET_IMM;
5570 inst.reloc.type = BFD_RELOC_ARM_HWLITERAL;
5571 inst.reloc.pc_rel = 1;
5572 inst.instruction |= (REG_PC << 16);
5573 pre_inc = 1;
5574 }
5575 else
5576 {
5577 if (my_get_expression (&inst.reloc.exp, &str))
5578 return;
5579
5580 inst.instruction |= HWOFFSET_IMM;
5581 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
5582 #ifndef TE_WINCE
5583 /* PC rel adjust. */
5584 inst.reloc.exp.X_add_number -= 8;
5585 #endif
5586 inst.reloc.pc_rel = 1;
5587 inst.instruction |= (REG_PC << 16);
5588 pre_inc = 1;
5589 }
5590
5591 inst.instruction |= (pre_inc ? PRE_INDEX : 0);
5592 end_of_line (str);
5593 return;
5594 }
5595
5596 static long
5597 reg_list (strp)
5598 char ** strp;
5599 {
5600 char * str = * strp;
5601 long range = 0;
5602 int another_range;
5603
5604 /* We come back here if we get ranges concatenated by '+' or '|'. */
5605 do
5606 {
5607 another_range = 0;
5608
5609 if (*str == '{')
5610 {
5611 int in_range = 0;
5612 int cur_reg = -1;
5613
5614 str++;
5615 do
5616 {
5617 int reg;
5618
5619 skip_whitespace (str);
5620
5621 if ((reg = reg_required_here (& str, -1)) == FAIL)
5622 return FAIL;
5623
5624 if (in_range)
5625 {
5626 int i;
5627
5628 if (reg <= cur_reg)
5629 {
5630 inst.error = _("bad range in register list");
5631 return FAIL;
5632 }
5633
5634 for (i = cur_reg + 1; i < reg; i++)
5635 {
5636 if (range & (1 << i))
5637 as_tsktsk
5638 (_("Warning: duplicated register (r%d) in register list"),
5639 i);
5640 else
5641 range |= 1 << i;
5642 }
5643 in_range = 0;
5644 }
5645
5646 if (range & (1 << reg))
5647 as_tsktsk (_("Warning: duplicated register (r%d) in register list"),
5648 reg);
5649 else if (reg <= cur_reg)
5650 as_tsktsk (_("Warning: register range not in ascending order"));
5651
5652 range |= 1 << reg;
5653 cur_reg = reg;
5654 }
5655 while (skip_past_comma (&str) != FAIL
5656 || (in_range = 1, *str++ == '-'));
5657 str--;
5658 skip_whitespace (str);
5659
5660 if (*str++ != '}')
5661 {
5662 inst.error = _("missing `}'");
5663 return FAIL;
5664 }
5665 }
5666 else
5667 {
5668 expressionS expr;
5669
5670 if (my_get_expression (&expr, &str))
5671 return FAIL;
5672
5673 if (expr.X_op == O_constant)
5674 {
5675 if (expr.X_add_number
5676 != (expr.X_add_number & 0x0000ffff))
5677 {
5678 inst.error = _("invalid register mask");
5679 return FAIL;
5680 }
5681
5682 if ((range & expr.X_add_number) != 0)
5683 {
5684 int regno = range & expr.X_add_number;
5685
5686 regno &= -regno;
5687 regno = (1 << regno) - 1;
5688 as_tsktsk
5689 (_("Warning: duplicated register (r%d) in register list"),
5690 regno);
5691 }
5692
5693 range |= expr.X_add_number;
5694 }
5695 else
5696 {
5697 if (inst.reloc.type != 0)
5698 {
5699 inst.error = _("expression too complex");
5700 return FAIL;
5701 }
5702
5703 memcpy (&inst.reloc.exp, &expr, sizeof (expressionS));
5704 inst.reloc.type = BFD_RELOC_ARM_MULTI;
5705 inst.reloc.pc_rel = 0;
5706 }
5707 }
5708
5709 skip_whitespace (str);
5710
5711 if (*str == '|' || *str == '+')
5712 {
5713 str++;
5714 another_range = 1;
5715 }
5716 }
5717 while (another_range);
5718
5719 *strp = str;
5720 return range;
5721 }
5722
5723 static void
5724 do_ldmstm (str)
5725 char * str;
5726 {
5727 int base_reg;
5728 long range;
5729
5730 skip_whitespace (str);
5731
5732 if ((base_reg = reg_required_here (&str, 16)) == FAIL)
5733 return;
5734
5735 if (base_reg == REG_PC)
5736 {
5737 inst.error = _("r15 not allowed as base register");
5738 return;
5739 }
5740
5741 skip_whitespace (str);
5742
5743 if (*str == '!')
5744 {
5745 inst.instruction |= WRITE_BACK;
5746 str++;
5747 }
5748
5749 if (skip_past_comma (&str) == FAIL
5750 || (range = reg_list (&str)) == FAIL)
5751 {
5752 if (! inst.error)
5753 inst.error = BAD_ARGS;
5754 return;
5755 }
5756
5757 if (*str == '^')
5758 {
5759 str++;
5760 inst.instruction |= LDM_TYPE_2_OR_3;
5761 }
5762
5763 inst.instruction |= range;
5764 end_of_line (str);
5765 return;
5766 }
5767
5768 static void
5769 do_swi (str)
5770 char * str;
5771 {
5772 skip_whitespace (str);
5773
5774 /* Allow optional leading '#'. */
5775 if (is_immediate_prefix (*str))
5776 str++;
5777
5778 if (my_get_expression (& inst.reloc.exp, & str))
5779 return;
5780
5781 inst.reloc.type = BFD_RELOC_ARM_SWI;
5782 inst.reloc.pc_rel = 0;
5783 end_of_line (str);
5784
5785 return;
5786 }
5787
5788 static void
5789 do_swap (str)
5790 char * str;
5791 {
5792 int reg;
5793
5794 skip_whitespace (str);
5795
5796 if ((reg = reg_required_here (&str, 12)) == FAIL)
5797 return;
5798
5799 if (reg == REG_PC)
5800 {
5801 inst.error = _("r15 not allowed in swap");
5802 return;
5803 }
5804
5805 if (skip_past_comma (&str) == FAIL
5806 || (reg = reg_required_here (&str, 0)) == FAIL)
5807 {
5808 if (!inst.error)
5809 inst.error = BAD_ARGS;
5810 return;
5811 }
5812
5813 if (reg == REG_PC)
5814 {
5815 inst.error = _("r15 not allowed in swap");
5816 return;
5817 }
5818
5819 if (skip_past_comma (&str) == FAIL
5820 || *str++ != '[')
5821 {
5822 inst.error = BAD_ARGS;
5823 return;
5824 }
5825
5826 skip_whitespace (str);
5827
5828 if ((reg = reg_required_here (&str, 16)) == FAIL)
5829 return;
5830
5831 if (reg == REG_PC)
5832 {
5833 inst.error = BAD_PC;
5834 return;
5835 }
5836
5837 skip_whitespace (str);
5838
5839 if (*str++ != ']')
5840 {
5841 inst.error = _("missing ]");
5842 return;
5843 }
5844
5845 end_of_line (str);
5846 return;
5847 }
5848
5849 static void
5850 do_branch (str)
5851 char * str;
5852 {
5853 if (my_get_expression (&inst.reloc.exp, &str))
5854 return;
5855
5856 #ifdef OBJ_ELF
5857 {
5858 char * save_in;
5859
5860 /* ScottB: February 5, 1998 - Check to see of PLT32 reloc
5861 required for the instruction. */
5862
5863 /* arm_parse_reloc () works on input_line_pointer.
5864 We actually want to parse the operands to the branch instruction
5865 passed in 'str'. Save the input pointer and restore it later. */
5866 save_in = input_line_pointer;
5867 input_line_pointer = str;
5868 if (inst.reloc.exp.X_op == O_symbol
5869 && *str == '('
5870 && arm_parse_reloc () == BFD_RELOC_ARM_PLT32)
5871 {
5872 inst.reloc.type = BFD_RELOC_ARM_PLT32;
5873 inst.reloc.pc_rel = 0;
5874 /* Modify str to point to after parsed operands, otherwise
5875 end_of_line() will complain about the (PLT) left in str. */
5876 str = input_line_pointer;
5877 }
5878 else
5879 {
5880 inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
5881 inst.reloc.pc_rel = 1;
5882 }
5883 input_line_pointer = save_in;
5884 }
5885 #else
5886 inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
5887 inst.reloc.pc_rel = 1;
5888 #endif /* OBJ_ELF */
5889
5890 end_of_line (str);
5891 return;
5892 }
5893
5894 static void
5895 do_bx (str)
5896 char * str;
5897 {
5898 int reg;
5899
5900 skip_whitespace (str);
5901
5902 if ((reg = reg_required_here (&str, 0)) == FAIL)
5903 {
5904 inst.error = BAD_ARGS;
5905 return;
5906 }
5907
5908 /* Note - it is not illegal to do a "bx pc". Useless, but not illegal. */
5909 if (reg == REG_PC)
5910 as_tsktsk (_("use of r15 in bx in ARM mode is not really useful"));
5911
5912 end_of_line (str);
5913 }
5914
5915 static void
5916 do_cdp (str)
5917 char * str;
5918 {
5919 /* Co-processor data operation.
5920 Format: CDP{cond} CP#,<expr>,CRd,CRn,CRm{,<expr>} */
5921 skip_whitespace (str);
5922
5923 if (co_proc_number (&str) == FAIL)
5924 {
5925 if (!inst.error)
5926 inst.error = BAD_ARGS;
5927 return;
5928 }
5929
5930 if (skip_past_comma (&str) == FAIL
5931 || cp_opc_expr (&str, 20,4) == FAIL)
5932 {
5933 if (!inst.error)
5934 inst.error = BAD_ARGS;
5935 return;
5936 }
5937
5938 if (skip_past_comma (&str) == FAIL
5939 || cp_reg_required_here (&str, 12) == FAIL)
5940 {
5941 if (!inst.error)
5942 inst.error = BAD_ARGS;
5943 return;
5944 }
5945
5946 if (skip_past_comma (&str) == FAIL
5947 || cp_reg_required_here (&str, 16) == FAIL)
5948 {
5949 if (!inst.error)
5950 inst.error = BAD_ARGS;
5951 return;
5952 }
5953
5954 if (skip_past_comma (&str) == FAIL
5955 || cp_reg_required_here (&str, 0) == FAIL)
5956 {
5957 if (!inst.error)
5958 inst.error = BAD_ARGS;
5959 return;
5960 }
5961
5962 if (skip_past_comma (&str) == SUCCESS)
5963 {
5964 if (cp_opc_expr (&str, 5, 3) == FAIL)
5965 {
5966 if (!inst.error)
5967 inst.error = BAD_ARGS;
5968 return;
5969 }
5970 }
5971
5972 end_of_line (str);
5973 return;
5974 }
5975
5976 static void
5977 do_lstc (str)
5978 char * str;
5979 {
5980 /* Co-processor register load/store.
5981 Format: <LDC|STC{cond}[L] CP#,CRd,<address> */
5982
5983 skip_whitespace (str);
5984
5985 if (co_proc_number (&str) == FAIL)
5986 {
5987 if (!inst.error)
5988 inst.error = BAD_ARGS;
5989 return;
5990 }
5991
5992 if (skip_past_comma (&str) == FAIL
5993 || cp_reg_required_here (&str, 12) == FAIL)
5994 {
5995 if (!inst.error)
5996 inst.error = BAD_ARGS;
5997 return;
5998 }
5999
6000 if (skip_past_comma (&str) == FAIL
6001 || cp_address_required_here (&str, CP_WB_OK) == FAIL)
6002 {
6003 if (! inst.error)
6004 inst.error = BAD_ARGS;
6005 return;
6006 }
6007
6008 end_of_line (str);
6009 return;
6010 }
6011
6012 static void
6013 do_co_reg (str)
6014 char * str;
6015 {
6016 /* Co-processor register transfer.
6017 Format: <MCR|MRC>{cond} CP#,<expr1>,Rd,CRn,CRm{,<expr2>} */
6018
6019 skip_whitespace (str);
6020
6021 if (co_proc_number (&str) == FAIL)
6022 {
6023 if (!inst.error)
6024 inst.error = BAD_ARGS;
6025 return;
6026 }
6027
6028 if (skip_past_comma (&str) == FAIL
6029 || cp_opc_expr (&str, 21, 3) == FAIL)
6030 {
6031 if (!inst.error)
6032 inst.error = BAD_ARGS;
6033 return;
6034 }
6035
6036 if (skip_past_comma (&str) == FAIL
6037 || reg_required_here (&str, 12) == FAIL)
6038 {
6039 if (!inst.error)
6040 inst.error = BAD_ARGS;
6041 return;
6042 }
6043
6044 if (skip_past_comma (&str) == FAIL
6045 || cp_reg_required_here (&str, 16) == FAIL)
6046 {
6047 if (!inst.error)
6048 inst.error = BAD_ARGS;
6049 return;
6050 }
6051
6052 if (skip_past_comma (&str) == FAIL
6053 || cp_reg_required_here (&str, 0) == FAIL)
6054 {
6055 if (!inst.error)
6056 inst.error = BAD_ARGS;
6057 return;
6058 }
6059
6060 if (skip_past_comma (&str) == SUCCESS)
6061 {
6062 if (cp_opc_expr (&str, 5, 3) == FAIL)
6063 {
6064 if (!inst.error)
6065 inst.error = BAD_ARGS;
6066 return;
6067 }
6068 }
6069
6070 end_of_line (str);
6071 return;
6072 }
6073
6074 static void
6075 do_fpa_ctrl (str)
6076 char * str;
6077 {
6078 /* FP control registers.
6079 Format: <WFS|RFS|WFC|RFC>{cond} Rn */
6080
6081 skip_whitespace (str);
6082
6083 if (reg_required_here (&str, 12) == FAIL)
6084 {
6085 if (!inst.error)
6086 inst.error = BAD_ARGS;
6087 return;
6088 }
6089
6090 end_of_line (str);
6091 return;
6092 }
6093
6094 static void
6095 do_fpa_ldst (str)
6096 char * str;
6097 {
6098 skip_whitespace (str);
6099
6100 if (fp_reg_required_here (&str, 12) == FAIL)
6101 {
6102 if (!inst.error)
6103 inst.error = BAD_ARGS;
6104 return;
6105 }
6106
6107 if (skip_past_comma (&str) == FAIL
6108 || cp_address_required_here (&str, CP_WB_OK) == FAIL)
6109 {
6110 if (!inst.error)
6111 inst.error = BAD_ARGS;
6112 return;
6113 }
6114
6115 end_of_line (str);
6116 }
6117
6118 static void
6119 do_fpa_ldmstm (str)
6120 char * str;
6121 {
6122 int num_regs;
6123
6124 skip_whitespace (str);
6125
6126 if (fp_reg_required_here (&str, 12) == FAIL)
6127 {
6128 if (! inst.error)
6129 inst.error = BAD_ARGS;
6130 return;
6131 }
6132
6133 /* Get Number of registers to transfer. */
6134 if (skip_past_comma (&str) == FAIL
6135 || my_get_expression (&inst.reloc.exp, &str))
6136 {
6137 if (! inst.error)
6138 inst.error = _("constant expression expected");
6139 return;
6140 }
6141
6142 if (inst.reloc.exp.X_op != O_constant)
6143 {
6144 inst.error = _("constant value required for number of registers");
6145 return;
6146 }
6147
6148 num_regs = inst.reloc.exp.X_add_number;
6149
6150 if (num_regs < 1 || num_regs > 4)
6151 {
6152 inst.error = _("number of registers must be in the range [1:4]");
6153 return;
6154 }
6155
6156 switch (num_regs)
6157 {
6158 case 1:
6159 inst.instruction |= CP_T_X;
6160 break;
6161 case 2:
6162 inst.instruction |= CP_T_Y;
6163 break;
6164 case 3:
6165 inst.instruction |= CP_T_Y | CP_T_X;
6166 break;
6167 case 4:
6168 break;
6169 default:
6170 abort ();
6171 }
6172
6173 if (inst.instruction & (CP_T_Pre | CP_T_UD)) /* ea/fd format. */
6174 {
6175 int reg;
6176 int write_back;
6177 int offset;
6178
6179 /* The instruction specified "ea" or "fd", so we can only accept
6180 [Rn]{!}. The instruction does not really support stacking or
6181 unstacking, so we have to emulate these by setting appropriate
6182 bits and offsets. */
6183 if (skip_past_comma (&str) == FAIL
6184 || *str != '[')
6185 {
6186 if (! inst.error)
6187 inst.error = BAD_ARGS;
6188 return;
6189 }
6190
6191 str++;
6192 skip_whitespace (str);
6193
6194 if ((reg = reg_required_here (&str, 16)) == FAIL)
6195 return;
6196
6197 skip_whitespace (str);
6198
6199 if (*str != ']')
6200 {
6201 inst.error = BAD_ARGS;
6202 return;
6203 }
6204
6205 str++;
6206 if (*str == '!')
6207 {
6208 write_back = 1;
6209 str++;
6210 if (reg == REG_PC)
6211 {
6212 inst.error =
6213 _("r15 not allowed as base register with write-back");
6214 return;
6215 }
6216 }
6217 else
6218 write_back = 0;
6219
6220 if (inst.instruction & CP_T_Pre)
6221 {
6222 /* Pre-decrement. */
6223 offset = 3 * num_regs;
6224 if (write_back)
6225 inst.instruction |= CP_T_WB;
6226 }
6227 else
6228 {
6229 /* Post-increment. */
6230 if (write_back)
6231 {
6232 inst.instruction |= CP_T_WB;
6233 offset = 3 * num_regs;
6234 }
6235 else
6236 {
6237 /* No write-back, so convert this into a standard pre-increment
6238 instruction -- aesthetically more pleasing. */
6239 inst.instruction |= CP_T_Pre | CP_T_UD;
6240 offset = 0;
6241 }
6242 }
6243
6244 inst.instruction |= offset;
6245 }
6246 else if (skip_past_comma (&str) == FAIL
6247 || cp_address_required_here (&str, CP_WB_OK) == FAIL)
6248 {
6249 if (! inst.error)
6250 inst.error = BAD_ARGS;
6251 return;
6252 }
6253
6254 end_of_line (str);
6255 }
6256
6257 static void
6258 do_fpa_dyadic (str)
6259 char * str;
6260 {
6261 skip_whitespace (str);
6262
6263 if (fp_reg_required_here (&str, 12) == FAIL)
6264 {
6265 if (! inst.error)
6266 inst.error = BAD_ARGS;
6267 return;
6268 }
6269
6270 if (skip_past_comma (&str) == FAIL
6271 || fp_reg_required_here (&str, 16) == FAIL)
6272 {
6273 if (! inst.error)
6274 inst.error = BAD_ARGS;
6275 return;
6276 }
6277
6278 if (skip_past_comma (&str) == FAIL
6279 || fp_op2 (&str) == FAIL)
6280 {
6281 if (! inst.error)
6282 inst.error = BAD_ARGS;
6283 return;
6284 }
6285
6286 end_of_line (str);
6287 return;
6288 }
6289
6290 static void
6291 do_fpa_monadic (str)
6292 char * str;
6293 {
6294 skip_whitespace (str);
6295
6296 if (fp_reg_required_here (&str, 12) == FAIL)
6297 {
6298 if (! inst.error)
6299 inst.error = BAD_ARGS;
6300 return;
6301 }
6302
6303 if (skip_past_comma (&str) == FAIL
6304 || fp_op2 (&str) == FAIL)
6305 {
6306 if (! inst.error)
6307 inst.error = BAD_ARGS;
6308 return;
6309 }
6310
6311 end_of_line (str);
6312 return;
6313 }
6314
6315 static void
6316 do_fpa_cmp (str)
6317 char * str;
6318 {
6319 skip_whitespace (str);
6320
6321 if (fp_reg_required_here (&str, 16) == FAIL)
6322 {
6323 if (! inst.error)
6324 inst.error = BAD_ARGS;
6325 return;
6326 }
6327
6328 if (skip_past_comma (&str) == FAIL
6329 || fp_op2 (&str) == FAIL)
6330 {
6331 if (! inst.error)
6332 inst.error = BAD_ARGS;
6333 return;
6334 }
6335
6336 end_of_line (str);
6337 return;
6338 }
6339
6340 static void
6341 do_fpa_from_reg (str)
6342 char * str;
6343 {
6344 skip_whitespace (str);
6345
6346 if (fp_reg_required_here (&str, 16) == FAIL)
6347 {
6348 if (! inst.error)
6349 inst.error = BAD_ARGS;
6350 return;
6351 }
6352
6353 if (skip_past_comma (&str) == FAIL
6354 || reg_required_here (&str, 12) == FAIL)
6355 {
6356 if (! inst.error)
6357 inst.error = BAD_ARGS;
6358 return;
6359 }
6360
6361 end_of_line (str);
6362 return;
6363 }
6364
6365 static void
6366 do_fpa_to_reg (str)
6367 char * str;
6368 {
6369 skip_whitespace (str);
6370
6371 if (reg_required_here (&str, 12) == FAIL)
6372 return;
6373
6374 if (skip_past_comma (&str) == FAIL
6375 || fp_reg_required_here (&str, 0) == FAIL)
6376 {
6377 if (! inst.error)
6378 inst.error = BAD_ARGS;
6379 return;
6380 }
6381
6382 end_of_line (str);
6383 return;
6384 }
6385
6386 static int
6387 vfp_sp_reg_required_here (str, pos)
6388 char **str;
6389 enum vfp_sp_reg_pos pos;
6390 {
6391 int reg;
6392 char *start = *str;
6393
6394 if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_SN].htab)) != FAIL)
6395 {
6396 switch (pos)
6397 {
6398 case VFP_REG_Sd:
6399 inst.instruction |= ((reg >> 1) << 12) | ((reg & 1) << 22);
6400 break;
6401
6402 case VFP_REG_Sn:
6403 inst.instruction |= ((reg >> 1) << 16) | ((reg & 1) << 7);
6404 break;
6405
6406 case VFP_REG_Sm:
6407 inst.instruction |= ((reg >> 1) << 0) | ((reg & 1) << 5);
6408 break;
6409
6410 default:
6411 abort ();
6412 }
6413 return reg;
6414 }
6415
6416 /* In the few cases where we might be able to accept something else
6417 this error can be overridden. */
6418 inst.error = _(all_reg_maps[REG_TYPE_SN].expected);
6419
6420 /* Restore the start point. */
6421 *str = start;
6422 return FAIL;
6423 }
6424
6425 static int
6426 vfp_dp_reg_required_here (str, pos)
6427 char **str;
6428 enum vfp_dp_reg_pos pos;
6429 {
6430 int reg;
6431 char *start = *str;
6432
6433 if ((reg = arm_reg_parse (str, all_reg_maps[REG_TYPE_DN].htab)) != FAIL)
6434 {
6435 switch (pos)
6436 {
6437 case VFP_REG_Dd:
6438 inst.instruction |= reg << 12;
6439 break;
6440
6441 case VFP_REG_Dn:
6442 inst.instruction |= reg << 16;
6443 break;
6444
6445 case VFP_REG_Dm:
6446 inst.instruction |= reg << 0;
6447 break;
6448
6449 default:
6450 abort ();
6451 }
6452 return reg;
6453 }
6454
6455 /* In the few cases where we might be able to accept something else
6456 this error can be overridden. */
6457 inst.error = _(all_reg_maps[REG_TYPE_DN].expected);
6458
6459 /* Restore the start point. */
6460 *str = start;
6461 return FAIL;
6462 }
6463
6464 static void
6465 do_vfp_sp_monadic (str)
6466 char *str;
6467 {
6468 skip_whitespace (str);
6469
6470 if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
6471 return;
6472
6473 if (skip_past_comma (&str) == FAIL
6474 || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
6475 {
6476 if (! inst.error)
6477 inst.error = BAD_ARGS;
6478 return;
6479 }
6480
6481 end_of_line (str);
6482 return;
6483 }
6484
6485 static void
6486 do_vfp_dp_monadic (str)
6487 char *str;
6488 {
6489 skip_whitespace (str);
6490
6491 if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
6492 return;
6493
6494 if (skip_past_comma (&str) == FAIL
6495 || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
6496 {
6497 if (! inst.error)
6498 inst.error = BAD_ARGS;
6499 return;
6500 }
6501
6502 end_of_line (str);
6503 return;
6504 }
6505
6506 static void
6507 do_vfp_sp_dyadic (str)
6508 char *str;
6509 {
6510 skip_whitespace (str);
6511
6512 if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
6513 return;
6514
6515 if (skip_past_comma (&str) == FAIL
6516 || vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL
6517 || skip_past_comma (&str) == FAIL
6518 || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
6519 {
6520 if (! inst.error)
6521 inst.error = BAD_ARGS;
6522 return;
6523 }
6524
6525 end_of_line (str);
6526 return;
6527 }
6528
6529 static void
6530 do_vfp_dp_dyadic (str)
6531 char *str;
6532 {
6533 skip_whitespace (str);
6534
6535 if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
6536 return;
6537
6538 if (skip_past_comma (&str) == FAIL
6539 || vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL
6540 || skip_past_comma (&str) == FAIL
6541 || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
6542 {
6543 if (! inst.error)
6544 inst.error = BAD_ARGS;
6545 return;
6546 }
6547
6548 end_of_line (str);
6549 return;
6550 }
6551
6552 static void
6553 do_vfp_reg_from_sp (str)
6554 char *str;
6555 {
6556 skip_whitespace (str);
6557
6558 if (reg_required_here (&str, 12) == FAIL)
6559 return;
6560
6561 if (skip_past_comma (&str) == FAIL
6562 || vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL)
6563 {
6564 if (! inst.error)
6565 inst.error = BAD_ARGS;
6566 return;
6567 }
6568
6569 end_of_line (str);
6570 return;
6571 }
6572
6573 static void
6574 do_vfp_sp_reg2 (str)
6575 char *str;
6576 {
6577 skip_whitespace (str);
6578
6579 if (reg_required_here (&str, 12) == FAIL)
6580 return;
6581
6582 if (skip_past_comma (&str) == FAIL
6583 || reg_required_here (&str, 16) == FAIL
6584 || skip_past_comma (&str) == FAIL)
6585 {
6586 if (! inst.error)
6587 inst.error = BAD_ARGS;
6588 return;
6589 }
6590
6591 /* We require exactly two consecutive SP registers. */
6592 if (vfp_sp_reg_list (&str, VFP_REG_Sm) != 2)
6593 {
6594 if (! inst.error)
6595 inst.error = _("only two consecutive VFP SP registers allowed here");
6596 }
6597
6598 end_of_line (str);
6599 return;
6600 }
6601
6602 static void
6603 do_vfp_sp_from_reg (str)
6604 char *str;
6605 {
6606 skip_whitespace (str);
6607
6608 if (vfp_sp_reg_required_here (&str, VFP_REG_Sn) == FAIL)
6609 return;
6610
6611 if (skip_past_comma (&str) == FAIL
6612 || reg_required_here (&str, 12) == FAIL)
6613 {
6614 if (! inst.error)
6615 inst.error = BAD_ARGS;
6616 return;
6617 }
6618
6619 end_of_line (str);
6620 return;
6621 }
6622
6623 static void
6624 do_vfp_reg_from_dp (str)
6625 char *str;
6626 {
6627 skip_whitespace (str);
6628
6629 if (reg_required_here (&str, 12) == FAIL)
6630 return;
6631
6632 if (skip_past_comma (&str) == FAIL
6633 || vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL)
6634 {
6635 if (! inst.error)
6636 inst.error = BAD_ARGS;
6637 return;
6638 }
6639
6640 end_of_line (str);
6641 return;
6642 }
6643
6644 static void
6645 do_vfp_reg2_from_dp (str)
6646 char *str;
6647 {
6648 skip_whitespace (str);
6649
6650 if (reg_required_here (&str, 12) == FAIL)
6651 return;
6652
6653 if (skip_past_comma (&str) == FAIL
6654 || reg_required_here (&str, 16) == FAIL
6655 || skip_past_comma (&str) == FAIL
6656 || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
6657 {
6658 if (! inst.error)
6659 inst.error = BAD_ARGS;
6660 return;
6661 }
6662
6663 end_of_line (str);
6664 return;
6665 }
6666
6667 static void
6668 do_vfp_dp_from_reg (str)
6669 char *str;
6670 {
6671 skip_whitespace (str);
6672
6673 if (vfp_dp_reg_required_here (&str, VFP_REG_Dn) == FAIL)
6674 return;
6675
6676 if (skip_past_comma (&str) == FAIL
6677 || reg_required_here (&str, 12) == FAIL)
6678 {
6679 if (! inst.error)
6680 inst.error = BAD_ARGS;
6681 return;
6682 }
6683
6684 end_of_line (str);
6685 return;
6686 }
6687
6688 static void
6689 do_vfp_dp_from_reg2 (str)
6690 char *str;
6691 {
6692 skip_whitespace (str);
6693
6694 if (vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
6695 return;
6696
6697 if (skip_past_comma (&str) == FAIL
6698 || reg_required_here (&str, 12) == FAIL
6699 || skip_past_comma (&str) == FAIL
6700 || reg_required_here (&str, 16))
6701 {
6702 if (! inst.error)
6703 inst.error = BAD_ARGS;
6704 return;
6705 }
6706
6707 end_of_line (str);
6708 return;
6709 }
6710
6711 static const struct vfp_reg *
6712 vfp_psr_parse (str)
6713 char **str;
6714 {
6715 char *start = *str;
6716 char c;
6717 char *p;
6718 const struct vfp_reg *vreg;
6719
6720 p = start;
6721
6722 /* Find the end of the current token. */
6723 do
6724 {
6725 c = *p++;
6726 }
6727 while (ISALPHA (c));
6728
6729 /* Mark it. */
6730 *--p = 0;
6731
6732 for (vreg = vfp_regs + 0;
6733 vreg < vfp_regs + sizeof (vfp_regs) / sizeof (struct vfp_reg);
6734 vreg++)
6735 {
6736 if (strcmp (start, vreg->name) == 0)
6737 {
6738 *p = c;
6739 *str = p;
6740 return vreg;
6741 }
6742 }
6743
6744 *p = c;
6745 return NULL;
6746 }
6747
6748 static int
6749 vfp_psr_required_here (str)
6750 char **str;
6751 {
6752 char *start = *str;
6753 const struct vfp_reg *vreg;
6754
6755 vreg = vfp_psr_parse (str);
6756
6757 if (vreg)
6758 {
6759 inst.instruction |= vreg->regno;
6760 return SUCCESS;
6761 }
6762
6763 inst.error = _("VFP system register expected");
6764
6765 *str = start;
6766 return FAIL;
6767 }
6768
6769 static void
6770 do_vfp_reg_from_ctrl (str)
6771 char *str;
6772 {
6773 skip_whitespace (str);
6774
6775 if (reg_required_here (&str, 12) == FAIL)
6776 return;
6777
6778 if (skip_past_comma (&str) == FAIL
6779 || vfp_psr_required_here (&str) == FAIL)
6780 {
6781 if (! inst.error)
6782 inst.error = BAD_ARGS;
6783 return;
6784 }
6785
6786 end_of_line (str);
6787 return;
6788 }
6789
6790 static void
6791 do_vfp_ctrl_from_reg (str)
6792 char *str;
6793 {
6794 skip_whitespace (str);
6795
6796 if (vfp_psr_required_here (&str) == FAIL)
6797 return;
6798
6799 if (skip_past_comma (&str) == FAIL
6800 || reg_required_here (&str, 12) == FAIL)
6801 {
6802 if (! inst.error)
6803 inst.error = BAD_ARGS;
6804 return;
6805 }
6806
6807 end_of_line (str);
6808 return;
6809 }
6810
6811 static void
6812 do_vfp_sp_ldst (str)
6813 char *str;
6814 {
6815 skip_whitespace (str);
6816
6817 if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
6818 {
6819 if (!inst.error)
6820 inst.error = BAD_ARGS;
6821 return;
6822 }
6823
6824 if (skip_past_comma (&str) == FAIL
6825 || cp_address_required_here (&str, CP_NO_WB) == FAIL)
6826 {
6827 if (!inst.error)
6828 inst.error = BAD_ARGS;
6829 return;
6830 }
6831
6832 end_of_line (str);
6833 return;
6834 }
6835
6836 static void
6837 do_vfp_dp_ldst (str)
6838 char *str;
6839 {
6840 skip_whitespace (str);
6841
6842 if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
6843 {
6844 if (!inst.error)
6845 inst.error = BAD_ARGS;
6846 return;
6847 }
6848
6849 if (skip_past_comma (&str) == FAIL
6850 || cp_address_required_here (&str, CP_NO_WB) == FAIL)
6851 {
6852 if (!inst.error)
6853 inst.error = BAD_ARGS;
6854 return;
6855 }
6856
6857 end_of_line (str);
6858 return;
6859 }
6860
6861 /* Parse and encode a VFP SP register list, storing the initial
6862 register in position POS and returning the range as the result. If
6863 the string is invalid return FAIL (an invalid range). */
6864 static long
6865 vfp_sp_reg_list (str, pos)
6866 char **str;
6867 enum vfp_sp_reg_pos pos;
6868 {
6869 long range = 0;
6870 int base_reg = 0;
6871 int new_base;
6872 long base_bits = 0;
6873 int count = 0;
6874 long tempinst;
6875 unsigned long mask = 0;
6876 int warned = 0;
6877
6878 if (**str != '{')
6879 return FAIL;
6880
6881 (*str)++;
6882 skip_whitespace (*str);
6883
6884 tempinst = inst.instruction;
6885
6886 do
6887 {
6888 inst.instruction = 0;
6889
6890 if ((new_base = vfp_sp_reg_required_here (str, pos)) == FAIL)
6891 return FAIL;
6892
6893 if (count == 0 || base_reg > new_base)
6894 {
6895 base_reg = new_base;
6896 base_bits = inst.instruction;
6897 }
6898
6899 if (mask & (1 << new_base))
6900 {
6901 inst.error = _("invalid register list");
6902 return FAIL;
6903 }
6904
6905 if ((mask >> new_base) != 0 && ! warned)
6906 {
6907 as_tsktsk (_("register list not in ascending order"));
6908 warned = 1;
6909 }
6910
6911 mask |= 1 << new_base;
6912 count++;
6913
6914 skip_whitespace (*str);
6915
6916 if (**str == '-') /* We have the start of a range expression */
6917 {
6918 int high_range;
6919
6920 (*str)++;
6921
6922 if ((high_range
6923 = arm_reg_parse (str, all_reg_maps[REG_TYPE_SN].htab))
6924 == FAIL)
6925 {
6926 inst.error = _(all_reg_maps[REG_TYPE_SN].expected);
6927 return FAIL;
6928 }
6929
6930 if (high_range <= new_base)
6931 {
6932 inst.error = _("register range not in ascending order");
6933 return FAIL;
6934 }
6935
6936 for (new_base++; new_base <= high_range; new_base++)
6937 {
6938 if (mask & (1 << new_base))
6939 {
6940 inst.error = _("invalid register list");
6941 return FAIL;
6942 }
6943
6944 mask |= 1 << new_base;
6945 count++;
6946 }
6947 }
6948 }
6949 while (skip_past_comma (str) != FAIL);
6950
6951 if (**str != '}')
6952 {
6953 inst.error = _("invalid register list");
6954 return FAIL;
6955 }
6956
6957 (*str)++;
6958
6959 range = count;
6960
6961 /* Sanity check -- should have raised a parse error above. */
6962 if (count == 0 || count > 32)
6963 abort();
6964
6965 /* Final test -- the registers must be consecutive. */
6966 while (count--)
6967 {
6968 if ((mask & (1 << base_reg++)) == 0)
6969 {
6970 inst.error = _("non-contiguous register range");
6971 return FAIL;
6972 }
6973 }
6974
6975 inst.instruction = tempinst | base_bits;
6976 return range;
6977 }
6978
6979 static long
6980 vfp_dp_reg_list (str)
6981 char **str;
6982 {
6983 long range = 0;
6984 int base_reg = 0;
6985 int new_base;
6986 int count = 0;
6987 long tempinst;
6988 unsigned long mask = 0;
6989 int warned = 0;
6990
6991 if (**str != '{')
6992 return FAIL;
6993
6994 (*str)++;
6995 skip_whitespace (*str);
6996
6997 tempinst = inst.instruction;
6998
6999 do
7000 {
7001 inst.instruction = 0;
7002
7003 if ((new_base = vfp_dp_reg_required_here (str, VFP_REG_Dd)) == FAIL)
7004 return FAIL;
7005
7006 if (count == 0 || base_reg > new_base)
7007 {
7008 base_reg = new_base;
7009 range = inst.instruction;
7010 }
7011
7012 if (mask & (1 << new_base))
7013 {
7014 inst.error = _("invalid register list");
7015 return FAIL;
7016 }
7017
7018 if ((mask >> new_base) != 0 && ! warned)
7019 {
7020 as_tsktsk (_("register list not in ascending order"));
7021 warned = 1;
7022 }
7023
7024 mask |= 1 << new_base;
7025 count++;
7026
7027 skip_whitespace (*str);
7028
7029 if (**str == '-') /* We have the start of a range expression */
7030 {
7031 int high_range;
7032
7033 (*str)++;
7034
7035 if ((high_range
7036 = arm_reg_parse (str, all_reg_maps[REG_TYPE_DN].htab))
7037 == FAIL)
7038 {
7039 inst.error = _(all_reg_maps[REG_TYPE_DN].expected);
7040 return FAIL;
7041 }
7042
7043 if (high_range <= new_base)
7044 {
7045 inst.error = _("register range not in ascending order");
7046 return FAIL;
7047 }
7048
7049 for (new_base++; new_base <= high_range; new_base++)
7050 {
7051 if (mask & (1 << new_base))
7052 {
7053 inst.error = _("invalid register list");
7054 return FAIL;
7055 }
7056
7057 mask |= 1 << new_base;
7058 count++;
7059 }
7060 }
7061 }
7062 while (skip_past_comma (str) != FAIL);
7063
7064 if (**str != '}')
7065 {
7066 inst.error = _("invalid register list");
7067 return FAIL;
7068 }
7069
7070 (*str)++;
7071
7072 range |= 2 * count;
7073
7074 /* Sanity check -- should have raised a parse error above. */
7075 if (count == 0 || count > 16)
7076 abort();
7077
7078 /* Final test -- the registers must be consecutive. */
7079 while (count--)
7080 {
7081 if ((mask & (1 << base_reg++)) == 0)
7082 {
7083 inst.error = _("non-contiguous register range");
7084 return FAIL;
7085 }
7086 }
7087
7088 inst.instruction = tempinst;
7089 return range;
7090 }
7091
7092 static void
7093 vfp_sp_ldstm(str, ldstm_type)
7094 char *str;
7095 enum vfp_ldstm_type ldstm_type;
7096 {
7097 long range;
7098
7099 skip_whitespace (str);
7100
7101 if (reg_required_here (&str, 16) == FAIL)
7102 return;
7103
7104 skip_whitespace (str);
7105
7106 if (*str == '!')
7107 {
7108 inst.instruction |= WRITE_BACK;
7109 str++;
7110 }
7111 else if (ldstm_type != VFP_LDSTMIA)
7112 {
7113 inst.error = _("this addressing mode requires base-register writeback");
7114 return;
7115 }
7116
7117 if (skip_past_comma (&str) == FAIL
7118 || (range = vfp_sp_reg_list (&str, VFP_REG_Sd)) == FAIL)
7119 {
7120 if (!inst.error)
7121 inst.error = BAD_ARGS;
7122 return;
7123 }
7124
7125 inst.instruction |= range;
7126 end_of_line (str);
7127 }
7128
7129 static void
7130 vfp_dp_ldstm(str, ldstm_type)
7131 char *str;
7132 enum vfp_ldstm_type ldstm_type;
7133 {
7134 long range;
7135
7136 skip_whitespace (str);
7137
7138 if (reg_required_here (&str, 16) == FAIL)
7139 return;
7140
7141 skip_whitespace (str);
7142
7143 if (*str == '!')
7144 {
7145 inst.instruction |= WRITE_BACK;
7146 str++;
7147 }
7148 else if (ldstm_type != VFP_LDSTMIA && ldstm_type != VFP_LDSTMIAX)
7149 {
7150 inst.error = _("this addressing mode requires base-register writeback");
7151 return;
7152 }
7153
7154 if (skip_past_comma (&str) == FAIL
7155 || (range = vfp_dp_reg_list (&str)) == FAIL)
7156 {
7157 if (!inst.error)
7158 inst.error = BAD_ARGS;
7159 return;
7160 }
7161
7162 if (ldstm_type == VFP_LDSTMIAX || ldstm_type == VFP_LDSTMDBX)
7163 range += 1;
7164
7165 inst.instruction |= range;
7166 end_of_line (str);
7167 }
7168
7169 static void
7170 do_vfp_sp_ldstmia (str)
7171 char *str;
7172 {
7173 vfp_sp_ldstm (str, VFP_LDSTMIA);
7174 }
7175
7176 static void
7177 do_vfp_sp_ldstmdb (str)
7178 char *str;
7179 {
7180 vfp_sp_ldstm (str, VFP_LDSTMDB);
7181 }
7182
7183 static void
7184 do_vfp_dp_ldstmia (str)
7185 char *str;
7186 {
7187 vfp_dp_ldstm (str, VFP_LDSTMIA);
7188 }
7189
7190 static void
7191 do_vfp_dp_ldstmdb (str)
7192 char *str;
7193 {
7194 vfp_dp_ldstm (str, VFP_LDSTMDB);
7195 }
7196
7197 static void
7198 do_vfp_xp_ldstmia (str)
7199 char *str;
7200 {
7201 vfp_dp_ldstm (str, VFP_LDSTMIAX);
7202 }
7203
7204 static void
7205 do_vfp_xp_ldstmdb (str)
7206 char *str;
7207 {
7208 vfp_dp_ldstm (str, VFP_LDSTMDBX);
7209 }
7210
7211 static void
7212 do_vfp_sp_compare_z (str)
7213 char *str;
7214 {
7215 skip_whitespace (str);
7216
7217 if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
7218 {
7219 if (!inst.error)
7220 inst.error = BAD_ARGS;
7221 return;
7222 }
7223
7224 end_of_line (str);
7225 return;
7226 }
7227
7228 static void
7229 do_vfp_dp_compare_z (str)
7230 char *str;
7231 {
7232 skip_whitespace (str);
7233
7234 if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
7235 {
7236 if (!inst.error)
7237 inst.error = BAD_ARGS;
7238 return;
7239 }
7240
7241 end_of_line (str);
7242 return;
7243 }
7244
7245 static void
7246 do_vfp_dp_sp_cvt (str)
7247 char *str;
7248 {
7249 skip_whitespace (str);
7250
7251 if (vfp_dp_reg_required_here (&str, VFP_REG_Dd) == FAIL)
7252 return;
7253
7254 if (skip_past_comma (&str) == FAIL
7255 || vfp_sp_reg_required_here (&str, VFP_REG_Sm) == FAIL)
7256 {
7257 if (! inst.error)
7258 inst.error = BAD_ARGS;
7259 return;
7260 }
7261
7262 end_of_line (str);
7263 return;
7264 }
7265
7266 static void
7267 do_vfp_sp_dp_cvt (str)
7268 char *str;
7269 {
7270 skip_whitespace (str);
7271
7272 if (vfp_sp_reg_required_here (&str, VFP_REG_Sd) == FAIL)
7273 return;
7274
7275 if (skip_past_comma (&str) == FAIL
7276 || vfp_dp_reg_required_here (&str, VFP_REG_Dm) == FAIL)
7277 {
7278 if (! inst.error)
7279 inst.error = BAD_ARGS;
7280 return;
7281 }
7282
7283 end_of_line (str);
7284 return;
7285 }
7286
7287 /* Thumb specific routines. */
7288
7289 /* Parse and validate that a register is of the right form, this saves
7290 repeated checking of this information in many similar cases.
7291 Unlike the 32-bit case we do not insert the register into the opcode
7292 here, since the position is often unknown until the full instruction
7293 has been parsed. */
7294
7295 static int
7296 thumb_reg (strp, hi_lo)
7297 char ** strp;
7298 int hi_lo;
7299 {
7300 int reg;
7301
7302 if ((reg = reg_required_here (strp, -1)) == FAIL)
7303 return FAIL;
7304
7305 switch (hi_lo)
7306 {
7307 case THUMB_REG_LO:
7308 if (reg > 7)
7309 {
7310 inst.error = _("lo register required");
7311 return FAIL;
7312 }
7313 break;
7314
7315 case THUMB_REG_HI:
7316 if (reg < 8)
7317 {
7318 inst.error = _("hi register required");
7319 return FAIL;
7320 }
7321 break;
7322
7323 default:
7324 break;
7325 }
7326
7327 return reg;
7328 }
7329
7330 /* Parse an add or subtract instruction, SUBTRACT is non-zero if the opcode
7331 was SUB. */
7332
7333 static void
7334 thumb_add_sub (str, subtract)
7335 char * str;
7336 int subtract;
7337 {
7338 int Rd, Rs, Rn = FAIL;
7339
7340 skip_whitespace (str);
7341
7342 if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
7343 || skip_past_comma (&str) == FAIL)
7344 {
7345 if (! inst.error)
7346 inst.error = BAD_ARGS;
7347 return;
7348 }
7349
7350 if (is_immediate_prefix (*str))
7351 {
7352 Rs = Rd;
7353 str++;
7354 if (my_get_expression (&inst.reloc.exp, &str))
7355 return;
7356 }
7357 else
7358 {
7359 if ((Rs = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
7360 return;
7361
7362 if (skip_past_comma (&str) == FAIL)
7363 {
7364 /* Two operand format, shuffle the registers
7365 and pretend there are 3. */
7366 Rn = Rs;
7367 Rs = Rd;
7368 }
7369 else if (is_immediate_prefix (*str))
7370 {
7371 str++;
7372 if (my_get_expression (&inst.reloc.exp, &str))
7373 return;
7374 }
7375 else if ((Rn = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
7376 return;
7377 }
7378
7379 /* We now have Rd and Rs set to registers, and Rn set to a register or FAIL;
7380 for the latter case, EXPR contains the immediate that was found. */
7381 if (Rn != FAIL)
7382 {
7383 /* All register format. */
7384 if (Rd > 7 || Rs > 7 || Rn > 7)
7385 {
7386 if (Rs != Rd)
7387 {
7388 inst.error = _("dest and source1 must be the same register");
7389 return;
7390 }
7391
7392 /* Can't do this for SUB. */
7393 if (subtract)
7394 {
7395 inst.error = _("subtract valid only on lo regs");
7396 return;
7397 }
7398
7399 inst.instruction = (T_OPCODE_ADD_HI
7400 | (Rd > 7 ? THUMB_H1 : 0)
7401 | (Rn > 7 ? THUMB_H2 : 0));
7402 inst.instruction |= (Rd & 7) | ((Rn & 7) << 3);
7403 }
7404 else
7405 {
7406 inst.instruction = subtract ? T_OPCODE_SUB_R3 : T_OPCODE_ADD_R3;
7407 inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
7408 }
7409 }
7410 else
7411 {
7412 /* Immediate expression, now things start to get nasty. */
7413
7414 /* First deal with HI regs, only very restricted cases allowed:
7415 Adjusting SP, and using PC or SP to get an address. */
7416 if ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
7417 || (Rs > 7 && Rs != REG_SP && Rs != REG_PC))
7418 {
7419 inst.error = _("invalid Hi register with immediate");
7420 return;
7421 }
7422
7423 if (inst.reloc.exp.X_op != O_constant)
7424 {
7425 /* Value isn't known yet, all we can do is store all the fragments
7426 we know about in the instruction and let the reloc hacking
7427 work it all out. */
7428 inst.instruction = (subtract ? 0x8000 : 0) | (Rd << 4) | Rs;
7429 inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
7430 }
7431 else
7432 {
7433 int offset = inst.reloc.exp.X_add_number;
7434
7435 if (subtract)
7436 offset = -offset;
7437
7438 if (offset < 0)
7439 {
7440 offset = -offset;
7441 subtract = 1;
7442
7443 /* Quick check, in case offset is MIN_INT. */
7444 if (offset < 0)
7445 {
7446 inst.error = _("immediate value out of range");
7447 return;
7448 }
7449 }
7450 else
7451 subtract = 0;
7452
7453 if (Rd == REG_SP)
7454 {
7455 if (offset & ~0x1fc)
7456 {
7457 inst.error = _("invalid immediate value for stack adjust");
7458 return;
7459 }
7460 inst.instruction = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
7461 inst.instruction |= offset >> 2;
7462 }
7463 else if (Rs == REG_PC || Rs == REG_SP)
7464 {
7465 if (subtract
7466 || (offset & ~0x3fc))
7467 {
7468 inst.error = _("invalid immediate for address calculation");
7469 return;
7470 }
7471 inst.instruction = (Rs == REG_PC ? T_OPCODE_ADD_PC
7472 : T_OPCODE_ADD_SP);
7473 inst.instruction |= (Rd << 8) | (offset >> 2);
7474 }
7475 else if (Rs == Rd)
7476 {
7477 if (offset & ~0xff)
7478 {
7479 inst.error = _("immediate value out of range");
7480 return;
7481 }
7482 inst.instruction = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
7483 inst.instruction |= (Rd << 8) | offset;
7484 }
7485 else
7486 {
7487 if (offset & ~0x7)
7488 {
7489 inst.error = _("immediate value out of range");
7490 return;
7491 }
7492 inst.instruction = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
7493 inst.instruction |= Rd | (Rs << 3) | (offset << 6);
7494 }
7495 }
7496 }
7497
7498 end_of_line (str);
7499 }
7500
7501 static void
7502 thumb_shift (str, shift)
7503 char * str;
7504 int shift;
7505 {
7506 int Rd, Rs, Rn = FAIL;
7507
7508 skip_whitespace (str);
7509
7510 if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
7511 || skip_past_comma (&str) == FAIL)
7512 {
7513 if (! inst.error)
7514 inst.error = BAD_ARGS;
7515 return;
7516 }
7517
7518 if (is_immediate_prefix (*str))
7519 {
7520 /* Two operand immediate format, set Rs to Rd. */
7521 Rs = Rd;
7522 str ++;
7523 if (my_get_expression (&inst.reloc.exp, &str))
7524 return;
7525 }
7526 else
7527 {
7528 if ((Rs = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
7529 return;
7530
7531 if (skip_past_comma (&str) == FAIL)
7532 {
7533 /* Two operand format, shuffle the registers
7534 and pretend there are 3. */
7535 Rn = Rs;
7536 Rs = Rd;
7537 }
7538 else if (is_immediate_prefix (*str))
7539 {
7540 str++;
7541 if (my_get_expression (&inst.reloc.exp, &str))
7542 return;
7543 }
7544 else if ((Rn = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
7545 return;
7546 }
7547
7548 /* We now have Rd and Rs set to registers, and Rn set to a register or FAIL;
7549 for the latter case, EXPR contains the immediate that was found. */
7550
7551 if (Rn != FAIL)
7552 {
7553 if (Rs != Rd)
7554 {
7555 inst.error = _("source1 and dest must be same register");
7556 return;
7557 }
7558
7559 switch (shift)
7560 {
7561 case THUMB_ASR: inst.instruction = T_OPCODE_ASR_R; break;
7562 case THUMB_LSL: inst.instruction = T_OPCODE_LSL_R; break;
7563 case THUMB_LSR: inst.instruction = T_OPCODE_LSR_R; break;
7564 }
7565
7566 inst.instruction |= Rd | (Rn << 3);
7567 }
7568 else
7569 {
7570 switch (shift)
7571 {
7572 case THUMB_ASR: inst.instruction = T_OPCODE_ASR_I; break;
7573 case THUMB_LSL: inst.instruction = T_OPCODE_LSL_I; break;
7574 case THUMB_LSR: inst.instruction = T_OPCODE_LSR_I; break;
7575 }
7576
7577 if (inst.reloc.exp.X_op != O_constant)
7578 {
7579 /* Value isn't known yet, create a dummy reloc and let reloc
7580 hacking fix it up. */
7581 inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
7582 }
7583 else
7584 {
7585 unsigned shift_value = inst.reloc.exp.X_add_number;
7586
7587 if (shift_value > 32 || (shift_value == 32 && shift == THUMB_LSL))
7588 {
7589 inst.error = _("invalid immediate for shift");
7590 return;
7591 }
7592
7593 /* Shifts of zero are handled by converting to LSL. */
7594 if (shift_value == 0)
7595 inst.instruction = T_OPCODE_LSL_I;
7596
7597 /* Shifts of 32 are encoded as a shift of zero. */
7598 if (shift_value == 32)
7599 shift_value = 0;
7600
7601 inst.instruction |= shift_value << 6;
7602 }
7603
7604 inst.instruction |= Rd | (Rs << 3);
7605 }
7606
7607 end_of_line (str);
7608 }
7609
7610 static void
7611 thumb_mov_compare (str, move)
7612 char * str;
7613 int move;
7614 {
7615 int Rd, Rs = FAIL;
7616
7617 skip_whitespace (str);
7618
7619 if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
7620 || skip_past_comma (&str) == FAIL)
7621 {
7622 if (! inst.error)
7623 inst.error = BAD_ARGS;
7624 return;
7625 }
7626
7627 if (is_immediate_prefix (*str))
7628 {
7629 str++;
7630 if (my_get_expression (&inst.reloc.exp, &str))
7631 return;
7632 }
7633 else if ((Rs = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
7634 return;
7635
7636 if (Rs != FAIL)
7637 {
7638 if (Rs < 8 && Rd < 8)
7639 {
7640 if (move == THUMB_MOVE)
7641 /* A move of two lowregs is encoded as ADD Rd, Rs, #0
7642 since a MOV instruction produces unpredictable results. */
7643 inst.instruction = T_OPCODE_ADD_I3;
7644 else
7645 inst.instruction = T_OPCODE_CMP_LR;
7646 inst.instruction |= Rd | (Rs << 3);
7647 }
7648 else
7649 {
7650 if (move == THUMB_MOVE)
7651 inst.instruction = T_OPCODE_MOV_HR;
7652 else
7653 inst.instruction = T_OPCODE_CMP_HR;
7654
7655 if (Rd > 7)
7656 inst.instruction |= THUMB_H1;
7657
7658 if (Rs > 7)
7659 inst.instruction |= THUMB_H2;
7660
7661 inst.instruction |= (Rd & 7) | ((Rs & 7) << 3);
7662 }
7663 }
7664 else
7665 {
7666 if (Rd > 7)
7667 {
7668 inst.error = _("only lo regs allowed with immediate");
7669 return;
7670 }
7671
7672 if (move == THUMB_MOVE)
7673 inst.instruction = T_OPCODE_MOV_I8;
7674 else
7675 inst.instruction = T_OPCODE_CMP_I8;
7676
7677 inst.instruction |= Rd << 8;
7678
7679 if (inst.reloc.exp.X_op != O_constant)
7680 inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
7681 else
7682 {
7683 unsigned value = inst.reloc.exp.X_add_number;
7684
7685 if (value > 255)
7686 {
7687 inst.error = _("invalid immediate");
7688 return;
7689 }
7690
7691 inst.instruction |= value;
7692 }
7693 }
7694
7695 end_of_line (str);
7696 }
7697
7698 static void
7699 thumb_load_store (str, load_store, size)
7700 char * str;
7701 int load_store;
7702 int size;
7703 {
7704 int Rd, Rb, Ro = FAIL;
7705
7706 skip_whitespace (str);
7707
7708 if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
7709 || skip_past_comma (&str) == FAIL)
7710 {
7711 if (! inst.error)
7712 inst.error = BAD_ARGS;
7713 return;
7714 }
7715
7716 if (*str == '[')
7717 {
7718 str++;
7719 if ((Rb = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
7720 return;
7721
7722 if (skip_past_comma (&str) != FAIL)
7723 {
7724 if (is_immediate_prefix (*str))
7725 {
7726 str++;
7727 if (my_get_expression (&inst.reloc.exp, &str))
7728 return;
7729 }
7730 else if ((Ro = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
7731 return;
7732 }
7733 else
7734 {
7735 inst.reloc.exp.X_op = O_constant;
7736 inst.reloc.exp.X_add_number = 0;
7737 }
7738
7739 if (*str != ']')
7740 {
7741 inst.error = _("expected ']'");
7742 return;
7743 }
7744 str++;
7745 }
7746 else if (*str == '=')
7747 {
7748 if (load_store != THUMB_LOAD)
7749 {
7750 inst.error = _("invalid pseudo operation");
7751 return;
7752 }
7753
7754 /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op. */
7755 str++;
7756
7757 skip_whitespace (str);
7758
7759 if (my_get_expression (& inst.reloc.exp, & str))
7760 return;
7761
7762 end_of_line (str);
7763
7764 if ( inst.reloc.exp.X_op != O_constant
7765 && inst.reloc.exp.X_op != O_symbol)
7766 {
7767 inst.error = "Constant expression expected";
7768 return;
7769 }
7770
7771 if (inst.reloc.exp.X_op == O_constant
7772 && ((inst.reloc.exp.X_add_number & ~0xFF) == 0))
7773 {
7774 /* This can be done with a mov instruction. */
7775
7776 inst.instruction = T_OPCODE_MOV_I8 | (Rd << 8);
7777 inst.instruction |= inst.reloc.exp.X_add_number;
7778 return;
7779 }
7780
7781 /* Insert into literal pool. */
7782 if (add_to_lit_pool () == FAIL)
7783 {
7784 if (!inst.error)
7785 inst.error = "literal pool insertion failed";
7786 return;
7787 }
7788
7789 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
7790 inst.reloc.pc_rel = 1;
7791 inst.instruction = T_OPCODE_LDR_PC | (Rd << 8);
7792 /* Adjust ARM pipeline offset to Thumb. */
7793 inst.reloc.exp.X_add_number += 4;
7794
7795 return;
7796 }
7797 else
7798 {
7799 if (my_get_expression (&inst.reloc.exp, &str))
7800 return;
7801
7802 inst.instruction = T_OPCODE_LDR_PC | (Rd << 8);
7803 inst.reloc.pc_rel = 1;
7804 inst.reloc.exp.X_add_number -= 4; /* Pipeline offset. */
7805 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
7806 end_of_line (str);
7807 return;
7808 }
7809
7810 if (Rb == REG_PC || Rb == REG_SP)
7811 {
7812 if (size != THUMB_WORD)
7813 {
7814 inst.error = _("byte or halfword not valid for base register");
7815 return;
7816 }
7817 else if (Rb == REG_PC && load_store != THUMB_LOAD)
7818 {
7819 inst.error = _("r15 based store not allowed");
7820 return;
7821 }
7822 else if (Ro != FAIL)
7823 {
7824 inst.error = _("invalid base register for register offset");
7825 return;
7826 }
7827
7828 if (Rb == REG_PC)
7829 inst.instruction = T_OPCODE_LDR_PC;
7830 else if (load_store == THUMB_LOAD)
7831 inst.instruction = T_OPCODE_LDR_SP;
7832 else
7833 inst.instruction = T_OPCODE_STR_SP;
7834
7835 inst.instruction |= Rd << 8;
7836 if (inst.reloc.exp.X_op == O_constant)
7837 {
7838 unsigned offset = inst.reloc.exp.X_add_number;
7839
7840 if (offset & ~0x3fc)
7841 {
7842 inst.error = _("invalid offset");
7843 return;
7844 }
7845
7846 inst.instruction |= offset >> 2;
7847 }
7848 else
7849 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
7850 }
7851 else if (Rb > 7)
7852 {
7853 inst.error = _("invalid base register in load/store");
7854 return;
7855 }
7856 else if (Ro == FAIL)
7857 {
7858 /* Immediate offset. */
7859 if (size == THUMB_WORD)
7860 inst.instruction = (load_store == THUMB_LOAD
7861 ? T_OPCODE_LDR_IW : T_OPCODE_STR_IW);
7862 else if (size == THUMB_HALFWORD)
7863 inst.instruction = (load_store == THUMB_LOAD
7864 ? T_OPCODE_LDR_IH : T_OPCODE_STR_IH);
7865 else
7866 inst.instruction = (load_store == THUMB_LOAD
7867 ? T_OPCODE_LDR_IB : T_OPCODE_STR_IB);
7868
7869 inst.instruction |= Rd | (Rb << 3);
7870
7871 if (inst.reloc.exp.X_op == O_constant)
7872 {
7873 unsigned offset = inst.reloc.exp.X_add_number;
7874
7875 if (offset & ~(0x1f << size))
7876 {
7877 inst.error = _("invalid offset");
7878 return;
7879 }
7880 inst.instruction |= (offset >> size) << 6;
7881 }
7882 else
7883 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
7884 }
7885 else
7886 {
7887 /* Register offset. */
7888 if (size == THUMB_WORD)
7889 inst.instruction = (load_store == THUMB_LOAD
7890 ? T_OPCODE_LDR_RW : T_OPCODE_STR_RW);
7891 else if (size == THUMB_HALFWORD)
7892 inst.instruction = (load_store == THUMB_LOAD
7893 ? T_OPCODE_LDR_RH : T_OPCODE_STR_RH);
7894 else
7895 inst.instruction = (load_store == THUMB_LOAD
7896 ? T_OPCODE_LDR_RB : T_OPCODE_STR_RB);
7897
7898 inst.instruction |= Rd | (Rb << 3) | (Ro << 6);
7899 }
7900
7901 end_of_line (str);
7902 }
7903
7904 /* A register must be given at this point.
7905
7906 Shift is the place to put it in inst.instruction.
7907
7908 Restores input start point on err.
7909 Returns the reg#, or FAIL. */
7910
7911 static int
7912 mav_reg_required_here (str, shift, regtype)
7913 char ** str;
7914 int shift;
7915 enum arm_reg_type regtype;
7916 {
7917 int reg;
7918 char *start = *str;
7919
7920 if ((reg = arm_reg_parse (str, all_reg_maps[regtype].htab)) != FAIL)
7921 {
7922 if (shift >= 0)
7923 inst.instruction |= reg << shift;
7924
7925 return reg;
7926 }
7927
7928 /* Restore the start point. */
7929 *str = start;
7930
7931 /* In the few cases where we might be able to accept something else
7932 this error can be overridden. */
7933 inst.error = _(all_reg_maps[regtype].expected);
7934
7935 return FAIL;
7936 }
7937
7938 /* Cirrus Maverick Instructions. */
7939
7940 /* Wrapper functions. */
7941
7942 static void
7943 do_mav_binops_1a (str)
7944 char * str;
7945 {
7946 do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVF);
7947 }
7948
7949 static void
7950 do_mav_binops_1b (str)
7951 char * str;
7952 {
7953 do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVD);
7954 }
7955
7956 static void
7957 do_mav_binops_1c (str)
7958 char * str;
7959 {
7960 do_mav_binops (str, MAV_MODE1, REG_TYPE_RN, REG_TYPE_MVDX);
7961 }
7962
7963 static void
7964 do_mav_binops_1d (str)
7965 char * str;
7966 {
7967 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVF);
7968 }
7969
7970 static void
7971 do_mav_binops_1e (str)
7972 char * str;
7973 {
7974 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVD);
7975 }
7976
7977 static void
7978 do_mav_binops_1f (str)
7979 char * str;
7980 {
7981 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVF);
7982 }
7983
7984 static void
7985 do_mav_binops_1g (str)
7986 char * str;
7987 {
7988 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVD);
7989 }
7990
7991 static void
7992 do_mav_binops_1h (str)
7993 char * str;
7994 {
7995 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVFX);
7996 }
7997
7998 static void
7999 do_mav_binops_1i (str)
8000 char * str;
8001 {
8002 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVFX);
8003 }
8004
8005 static void
8006 do_mav_binops_1j (str)
8007 char * str;
8008 {
8009 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVF, REG_TYPE_MVDX);
8010 }
8011
8012 static void
8013 do_mav_binops_1k (str)
8014 char * str;
8015 {
8016 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVD, REG_TYPE_MVDX);
8017 }
8018
8019 static void
8020 do_mav_binops_1l (str)
8021 char * str;
8022 {
8023 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVF);
8024 }
8025
8026 static void
8027 do_mav_binops_1m (str)
8028 char * str;
8029 {
8030 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVD);
8031 }
8032
8033 static void
8034 do_mav_binops_1n (str)
8035 char * str;
8036 {
8037 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVFX, REG_TYPE_MVFX);
8038 }
8039
8040 static void
8041 do_mav_binops_1o (str)
8042 char * str;
8043 {
8044 do_mav_binops (str, MAV_MODE1, REG_TYPE_MVDX, REG_TYPE_MVDX);
8045 }
8046
8047 static void
8048 do_mav_binops_2a (str)
8049 char * str;
8050 {
8051 do_mav_binops (str, MAV_MODE2, REG_TYPE_MVF, REG_TYPE_RN);
8052 }
8053
8054 static void
8055 do_mav_binops_2b (str)
8056 char * str;
8057 {
8058 do_mav_binops (str, MAV_MODE2, REG_TYPE_MVD, REG_TYPE_RN);
8059 }
8060
8061 static void
8062 do_mav_binops_2c (str)
8063 char * str;
8064 {
8065 do_mav_binops (str, MAV_MODE2, REG_TYPE_MVDX, REG_TYPE_RN);
8066 }
8067
8068 static void
8069 do_mav_binops_3a (str)
8070 char * str;
8071 {
8072 do_mav_binops (str, MAV_MODE3, REG_TYPE_MVAX, REG_TYPE_MVFX);
8073 }
8074
8075 static void
8076 do_mav_binops_3b (str)
8077 char * str;
8078 {
8079 do_mav_binops (str, MAV_MODE3, REG_TYPE_MVFX, REG_TYPE_MVAX);
8080 }
8081
8082 static void
8083 do_mav_binops_3c (str)
8084 char * str;
8085 {
8086 do_mav_binops (str, MAV_MODE3, REG_TYPE_MVAX, REG_TYPE_MVDX);
8087 }
8088
8089 static void
8090 do_mav_binops_3d (str)
8091 char * str;
8092 {
8093 do_mav_binops (str, MAV_MODE3, REG_TYPE_MVDX, REG_TYPE_MVAX);
8094 }
8095
8096 static void
8097 do_mav_triple_4a (str)
8098 char * str;
8099 {
8100 do_mav_triple (str, MAV_MODE4, REG_TYPE_MVFX, REG_TYPE_MVFX, REG_TYPE_RN);
8101 }
8102
8103 static void
8104 do_mav_triple_4b (str)
8105 char * str;
8106 {
8107 do_mav_triple (str, MAV_MODE4, REG_TYPE_MVDX, REG_TYPE_MVDX, REG_TYPE_RN);
8108 }
8109
8110 static void
8111 do_mav_triple_5a (str)
8112 char * str;
8113 {
8114 do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVF, REG_TYPE_MVF);
8115 }
8116
8117 static void
8118 do_mav_triple_5b (str)
8119 char * str;
8120 {
8121 do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVD, REG_TYPE_MVD);
8122 }
8123
8124 static void
8125 do_mav_triple_5c (str)
8126 char * str;
8127 {
8128 do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVFX, REG_TYPE_MVFX);
8129 }
8130
8131 static void
8132 do_mav_triple_5d (str)
8133 char * str;
8134 {
8135 do_mav_triple (str, MAV_MODE5, REG_TYPE_RN, REG_TYPE_MVDX, REG_TYPE_MVDX);
8136 }
8137
8138 static void
8139 do_mav_triple_5e (str)
8140 char * str;
8141 {
8142 do_mav_triple (str, MAV_MODE5, REG_TYPE_MVF, REG_TYPE_MVF, REG_TYPE_MVF);
8143 }
8144
8145 static void
8146 do_mav_triple_5f (str)
8147 char * str;
8148 {
8149 do_mav_triple (str, MAV_MODE5, REG_TYPE_MVD, REG_TYPE_MVD, REG_TYPE_MVD);
8150 }
8151
8152 static void
8153 do_mav_triple_5g (str)
8154 char * str;
8155 {
8156 do_mav_triple (str, MAV_MODE5, REG_TYPE_MVFX, REG_TYPE_MVFX, REG_TYPE_MVFX);
8157 }
8158
8159 static void
8160 do_mav_triple_5h (str)
8161 char * str;
8162 {
8163 do_mav_triple (str, MAV_MODE5, REG_TYPE_MVDX, REG_TYPE_MVDX, REG_TYPE_MVDX);
8164 }
8165
8166 static void
8167 do_mav_quad_6a (str)
8168 char * str;
8169 {
8170 do_mav_quad (str, MAV_MODE6, REG_TYPE_MVAX, REG_TYPE_MVFX, REG_TYPE_MVFX,
8171 REG_TYPE_MVFX);
8172 }
8173
8174 static void
8175 do_mav_quad_6b (str)
8176 char * str;
8177 {
8178 do_mav_quad (str, MAV_MODE6, REG_TYPE_MVAX, REG_TYPE_MVAX, REG_TYPE_MVFX,
8179 REG_TYPE_MVFX);
8180 }
8181
8182 /* cfmvsc32<cond> DSPSC,MVFX[15:0]. */
8183 static void
8184 do_mav_dspsc_1 (str)
8185 char * str;
8186 {
8187 skip_whitespace (str);
8188
8189 /* cfmvsc32. */
8190 if (mav_reg_required_here (&str, -1, REG_TYPE_DSPSC) == FAIL
8191 || skip_past_comma (&str) == FAIL
8192 || mav_reg_required_here (&str, 16, REG_TYPE_MVFX) == FAIL)
8193 {
8194 if (!inst.error)
8195 inst.error = BAD_ARGS;
8196
8197 return;
8198 }
8199
8200 end_of_line (str);
8201 }
8202
8203 /* cfmv32sc<cond> MVFX[15:0],DSPSC. */
8204 static void
8205 do_mav_dspsc_2 (str)
8206 char * str;
8207 {
8208 skip_whitespace (str);
8209
8210 /* cfmv32sc. */
8211 if (mav_reg_required_here (&str, 0, REG_TYPE_MVFX) == FAIL
8212 || skip_past_comma (&str) == FAIL
8213 || mav_reg_required_here (&str, -1, REG_TYPE_DSPSC) == FAIL)
8214 {
8215 if (!inst.error)
8216 inst.error = BAD_ARGS;
8217
8218 return;
8219 }
8220
8221 end_of_line (str);
8222 }
8223
8224 static void
8225 do_mav_shift_1 (str)
8226 char * str;
8227 {
8228 do_mav_shift (str, REG_TYPE_MVFX, REG_TYPE_MVFX);
8229 }
8230
8231 static void
8232 do_mav_shift_2 (str)
8233 char * str;
8234 {
8235 do_mav_shift (str, REG_TYPE_MVDX, REG_TYPE_MVDX);
8236 }
8237
8238 static void
8239 do_mav_ldst_1 (str)
8240 char * str;
8241 {
8242 do_mav_ldst (str, REG_TYPE_MVF);
8243 }
8244
8245 static void
8246 do_mav_ldst_2 (str)
8247 char * str;
8248 {
8249 do_mav_ldst (str, REG_TYPE_MVD);
8250 }
8251
8252 static void
8253 do_mav_ldst_3 (str)
8254 char * str;
8255 {
8256 do_mav_ldst (str, REG_TYPE_MVFX);
8257 }
8258
8259 static void
8260 do_mav_ldst_4 (str)
8261 char * str;
8262 {
8263 do_mav_ldst (str, REG_TYPE_MVDX);
8264 }
8265
8266 /* Isnsn like "foo X,Y". */
8267
8268 static void
8269 do_mav_binops (str, mode, reg0, reg1)
8270 char * str;
8271 int mode;
8272 enum arm_reg_type reg0;
8273 enum arm_reg_type reg1;
8274 {
8275 int shift0, shift1;
8276
8277 shift0 = mode & 0xff;
8278 shift1 = (mode >> 8) & 0xff;
8279
8280 skip_whitespace (str);
8281
8282 if (mav_reg_required_here (&str, shift0, reg0) == FAIL
8283 || skip_past_comma (&str) == FAIL
8284 || mav_reg_required_here (&str, shift1, reg1) == FAIL)
8285 {
8286 if (!inst.error)
8287 inst.error = BAD_ARGS;
8288 }
8289 else
8290 end_of_line (str);
8291 }
8292
8293 /* Isnsn like "foo X,Y,Z". */
8294
8295 static void
8296 do_mav_triple (str, mode, reg0, reg1, reg2)
8297 char * str;
8298 int mode;
8299 enum arm_reg_type reg0;
8300 enum arm_reg_type reg1;
8301 enum arm_reg_type reg2;
8302 {
8303 int shift0, shift1, shift2;
8304
8305 shift0 = mode & 0xff;
8306 shift1 = (mode >> 8) & 0xff;
8307 shift2 = (mode >> 16) & 0xff;
8308
8309 skip_whitespace (str);
8310
8311 if (mav_reg_required_here (&str, shift0, reg0) == FAIL
8312 || skip_past_comma (&str) == FAIL
8313 || mav_reg_required_here (&str, shift1, reg1) == FAIL
8314 || skip_past_comma (&str) == FAIL
8315 || mav_reg_required_here (&str, shift2, reg2) == FAIL)
8316 {
8317 if (!inst.error)
8318 inst.error = BAD_ARGS;
8319 }
8320 else
8321 end_of_line (str);
8322 }
8323
8324 /* Isnsn like "foo W,X,Y,Z".
8325 where W=MVAX[0:3] and X,Y,Z=MVFX[0:15]. */
8326
8327 static void
8328 do_mav_quad (str, mode, reg0, reg1, reg2, reg3)
8329 char * str;
8330 int mode;
8331 enum arm_reg_type reg0;
8332 enum arm_reg_type reg1;
8333 enum arm_reg_type reg2;
8334 enum arm_reg_type reg3;
8335 {
8336 int shift0, shift1, shift2, shift3;
8337
8338 shift0= mode & 0xff;
8339 shift1 = (mode >> 8) & 0xff;
8340 shift2 = (mode >> 16) & 0xff;
8341 shift3 = (mode >> 24) & 0xff;
8342
8343 skip_whitespace (str);
8344
8345 if (mav_reg_required_here (&str, shift0, reg0) == FAIL
8346 || skip_past_comma (&str) == FAIL
8347 || mav_reg_required_here (&str, shift1, reg1) == FAIL
8348 || skip_past_comma (&str) == FAIL
8349 || mav_reg_required_here (&str, shift2, reg2) == FAIL
8350 || skip_past_comma (&str) == FAIL
8351 || mav_reg_required_here (&str, shift3, reg3) == FAIL)
8352 {
8353 if (!inst.error)
8354 inst.error = BAD_ARGS;
8355 }
8356 else
8357 end_of_line (str);
8358 }
8359
8360 /* Maverick shift immediate instructions.
8361 cfsh32<cond> MVFX[15:0],MVFX[15:0],Shift[6:0].
8362 cfsh64<cond> MVDX[15:0],MVDX[15:0],Shift[6:0]. */
8363
8364 static void
8365 do_mav_shift (str, reg0, reg1)
8366 char * str;
8367 enum arm_reg_type reg0;
8368 enum arm_reg_type reg1;
8369 {
8370 int error;
8371 int imm, neg = 0;
8372
8373 skip_whitespace (str);
8374
8375 error = 0;
8376
8377 if (mav_reg_required_here (&str, 12, reg0) == FAIL
8378 || skip_past_comma (&str) == FAIL
8379 || mav_reg_required_here (&str, 16, reg1) == FAIL
8380 || skip_past_comma (&str) == FAIL)
8381 {
8382 if (!inst.error)
8383 inst.error = BAD_ARGS;
8384 return;
8385 }
8386
8387 /* Calculate the immediate operand.
8388 The operand is a 7bit signed number. */
8389 skip_whitespace (str);
8390
8391 if (*str == '#')
8392 ++str;
8393
8394 if (!ISDIGIT (*str) && *str != '-')
8395 {
8396 inst.error = _("expecting immediate, 7bit operand");
8397 return;
8398 }
8399
8400 if (*str == '-')
8401 {
8402 neg = 1;
8403 ++str;
8404 }
8405
8406 for (imm = 0; *str && ISDIGIT (*str); ++str)
8407 imm = imm * 10 + *str - '0';
8408
8409 if (imm > 64)
8410 {
8411 inst.error = _("immediate out of range");
8412 return;
8413 }
8414
8415 /* Make negative imm's into 7bit signed numbers. */
8416 if (neg)
8417 {
8418 imm = -imm;
8419 imm &= 0x0000007f;
8420 }
8421
8422 /* Bits 0-3 of the insn should have bits 0-3 of the immediate.
8423 Bits 5-7 of the insn should have bits 4-6 of the immediate.
8424 Bit 4 should be 0. */
8425 imm = (imm & 0xf) | ((imm & 0x70) << 1);
8426
8427 inst.instruction |= imm;
8428 end_of_line (str);
8429 }
8430
8431 static int
8432 mav_parse_offset (str, negative)
8433 char ** str;
8434 int *negative;
8435 {
8436 char * p = *str;
8437 int offset;
8438
8439 *negative = 0;
8440
8441 skip_whitespace (p);
8442
8443 if (*p == '#')
8444 ++p;
8445
8446 if (*p == '-')
8447 {
8448 *negative = 1;
8449 ++p;
8450 }
8451
8452 if (!ISDIGIT (*p))
8453 {
8454 inst.error = _("offset expected");
8455 return 0;
8456 }
8457
8458 for (offset = 0; *p && ISDIGIT (*p); ++p)
8459 offset = offset * 10 + *p - '0';
8460
8461 if (offset > 0xff)
8462 {
8463 inst.error = _("offset out of range");
8464 return 0;
8465 }
8466
8467 *str = p;
8468
8469 return *negative ? -offset : offset;
8470 }
8471
8472 /* Maverick load/store instructions.
8473 <insn><cond> CRd,[Rn,<offset>]{!}.
8474 <insn><cond> CRd,[Rn],<offset>. */
8475
8476 static void
8477 do_mav_ldst (str, reg0)
8478 char * str;
8479 enum arm_reg_type reg0;
8480 {
8481 int offset, negative;
8482
8483 skip_whitespace (str);
8484
8485 if (mav_reg_required_here (&str, 12, reg0) == FAIL
8486 || skip_past_comma (&str) == FAIL
8487 || *str++ != '['
8488 || reg_required_here (&str, 16) == FAIL)
8489 goto fail_ldst;
8490
8491 if (skip_past_comma (&str) == SUCCESS)
8492 {
8493 /* You are here: "<offset>]{!}". */
8494 inst.instruction |= PRE_INDEX;
8495
8496 offset = mav_parse_offset (&str, &negative);
8497
8498 if (inst.error)
8499 return;
8500
8501 if (*str++ != ']')
8502 {
8503 inst.error = _("missing ]");
8504 return;
8505 }
8506
8507 if (*str == '!')
8508 {
8509 inst.instruction |= WRITE_BACK;
8510 ++str;
8511 }
8512 }
8513 else
8514 {
8515 /* You are here: "], <offset>". */
8516 if (*str++ != ']')
8517 {
8518 inst.error = _("missing ]");
8519 return;
8520 }
8521
8522 if (skip_past_comma (&str) == FAIL
8523 || (offset = mav_parse_offset (&str, &negative), inst.error))
8524 goto fail_ldst;
8525
8526 inst.instruction |= CP_T_WB; /* Post indexed, set bit W. */
8527 }
8528
8529 if (negative)
8530 offset = -offset;
8531 else
8532 inst.instruction |= CP_T_UD; /* Postive, so set bit U. */
8533
8534 inst.instruction |= offset >> 2;
8535 end_of_line (str);
8536 return;
8537
8538 fail_ldst:
8539 if (!inst.error)
8540 inst.error = BAD_ARGS;
8541 return;
8542 }
8543
8544 static void
8545 do_t_nop (str)
8546 char * str;
8547 {
8548 /* Do nothing. */
8549 end_of_line (str);
8550 return;
8551 }
8552
8553 /* Handle the Format 4 instructions that do not have equivalents in other
8554 formats. That is, ADC, AND, EOR, SBC, ROR, TST, NEG, CMN, ORR, MUL,
8555 BIC and MVN. */
8556
8557 static void
8558 do_t_arit (str)
8559 char * str;
8560 {
8561 int Rd, Rs, Rn;
8562
8563 skip_whitespace (str);
8564
8565 if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
8566 || skip_past_comma (&str) == FAIL
8567 || (Rs = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
8568 {
8569 inst.error = BAD_ARGS;
8570 return;
8571 }
8572
8573 if (skip_past_comma (&str) != FAIL)
8574 {
8575 /* Three operand format not allowed for TST, CMN, NEG and MVN.
8576 (It isn't allowed for CMP either, but that isn't handled by this
8577 function.) */
8578 if (inst.instruction == T_OPCODE_TST
8579 || inst.instruction == T_OPCODE_CMN
8580 || inst.instruction == T_OPCODE_NEG
8581 || inst.instruction == T_OPCODE_MVN)
8582 {
8583 inst.error = BAD_ARGS;
8584 return;
8585 }
8586
8587 if ((Rn = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
8588 return;
8589
8590 if (Rs != Rd)
8591 {
8592 inst.error = _("dest and source1 must be the same register");
8593 return;
8594 }
8595 Rs = Rn;
8596 }
8597
8598 if (inst.instruction == T_OPCODE_MUL
8599 && Rs == Rd)
8600 as_tsktsk (_("Rs and Rd must be different in MUL"));
8601
8602 inst.instruction |= Rd | (Rs << 3);
8603 end_of_line (str);
8604 }
8605
8606 static void
8607 do_t_add (str)
8608 char * str;
8609 {
8610 thumb_add_sub (str, 0);
8611 }
8612
8613 static void
8614 do_t_asr (str)
8615 char * str;
8616 {
8617 thumb_shift (str, THUMB_ASR);
8618 }
8619
8620 static void
8621 do_t_branch9 (str)
8622 char * str;
8623 {
8624 if (my_get_expression (&inst.reloc.exp, &str))
8625 return;
8626 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH9;
8627 inst.reloc.pc_rel = 1;
8628 end_of_line (str);
8629 }
8630
8631 static void
8632 do_t_branch12 (str)
8633 char * str;
8634 {
8635 if (my_get_expression (&inst.reloc.exp, &str))
8636 return;
8637 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH12;
8638 inst.reloc.pc_rel = 1;
8639 end_of_line (str);
8640 }
8641
8642 /* Find the real, Thumb encoded start of a Thumb function. */
8643
8644 static symbolS *
8645 find_real_start (symbolP)
8646 symbolS * symbolP;
8647 {
8648 char * real_start;
8649 const char * name = S_GET_NAME (symbolP);
8650 symbolS * new_target;
8651
8652 /* This definiton must agree with the one in gcc/config/arm/thumb.c. */
8653 #define STUB_NAME ".real_start_of"
8654
8655 if (name == NULL)
8656 abort ();
8657
8658 /* Names that start with '.' are local labels, not function entry points.
8659 The compiler may generate BL instructions to these labels because it
8660 needs to perform a branch to a far away location. */
8661 if (name[0] == '.')
8662 return symbolP;
8663
8664 real_start = malloc (strlen (name) + strlen (STUB_NAME) + 1);
8665 sprintf (real_start, "%s%s", STUB_NAME, name);
8666
8667 new_target = symbol_find (real_start);
8668
8669 if (new_target == NULL)
8670 {
8671 as_warn ("Failed to find real start of function: %s\n", name);
8672 new_target = symbolP;
8673 }
8674
8675 free (real_start);
8676
8677 return new_target;
8678 }
8679
8680 static void
8681 do_t_branch23 (str)
8682 char * str;
8683 {
8684 if (my_get_expression (& inst.reloc.exp, & str))
8685 return;
8686
8687 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
8688 inst.reloc.pc_rel = 1;
8689 end_of_line (str);
8690
8691 /* If the destination of the branch is a defined symbol which does not have
8692 the THUMB_FUNC attribute, then we must be calling a function which has
8693 the (interfacearm) attribute. We look for the Thumb entry point to that
8694 function and change the branch to refer to that function instead. */
8695 if ( inst.reloc.exp.X_op == O_symbol
8696 && inst.reloc.exp.X_add_symbol != NULL
8697 && S_IS_DEFINED (inst.reloc.exp.X_add_symbol)
8698 && ! THUMB_IS_FUNC (inst.reloc.exp.X_add_symbol))
8699 inst.reloc.exp.X_add_symbol =
8700 find_real_start (inst.reloc.exp.X_add_symbol);
8701 }
8702
8703 static void
8704 do_t_bx (str)
8705 char * str;
8706 {
8707 int reg;
8708
8709 skip_whitespace (str);
8710
8711 if ((reg = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
8712 return;
8713
8714 /* This sets THUMB_H2 from the top bit of reg. */
8715 inst.instruction |= reg << 3;
8716
8717 /* ??? FIXME: Should add a hacky reloc here if reg is REG_PC. The reloc
8718 should cause the alignment to be checked once it is known. This is
8719 because BX PC only works if the instruction is word aligned. */
8720
8721 end_of_line (str);
8722 }
8723
8724 static void
8725 do_t_compare (str)
8726 char * str;
8727 {
8728 thumb_mov_compare (str, THUMB_COMPARE);
8729 }
8730
8731 static void
8732 do_t_ldmstm (str)
8733 char * str;
8734 {
8735 int Rb;
8736 long range;
8737
8738 skip_whitespace (str);
8739
8740 if ((Rb = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
8741 return;
8742
8743 if (*str != '!')
8744 as_warn (_("inserted missing '!': load/store multiple always writes back base register"));
8745 else
8746 str++;
8747
8748 if (skip_past_comma (&str) == FAIL
8749 || (range = reg_list (&str)) == FAIL)
8750 {
8751 if (! inst.error)
8752 inst.error = BAD_ARGS;
8753 return;
8754 }
8755
8756 if (inst.reloc.type != BFD_RELOC_NONE)
8757 {
8758 /* This really doesn't seem worth it. */
8759 inst.reloc.type = BFD_RELOC_NONE;
8760 inst.error = _("expression too complex");
8761 return;
8762 }
8763
8764 if (range & ~0xff)
8765 {
8766 inst.error = _("only lo-regs valid in load/store multiple");
8767 return;
8768 }
8769
8770 inst.instruction |= (Rb << 8) | range;
8771 end_of_line (str);
8772 }
8773
8774 static void
8775 do_t_ldr (str)
8776 char * str;
8777 {
8778 thumb_load_store (str, THUMB_LOAD, THUMB_WORD);
8779 }
8780
8781 static void
8782 do_t_ldrb (str)
8783 char * str;
8784 {
8785 thumb_load_store (str, THUMB_LOAD, THUMB_BYTE);
8786 }
8787
8788 static void
8789 do_t_ldrh (str)
8790 char * str;
8791 {
8792 thumb_load_store (str, THUMB_LOAD, THUMB_HALFWORD);
8793 }
8794
8795 static void
8796 do_t_lds (str)
8797 char * str;
8798 {
8799 int Rd, Rb, Ro;
8800
8801 skip_whitespace (str);
8802
8803 if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
8804 || skip_past_comma (&str) == FAIL
8805 || *str++ != '['
8806 || (Rb = thumb_reg (&str, THUMB_REG_LO)) == FAIL
8807 || skip_past_comma (&str) == FAIL
8808 || (Ro = thumb_reg (&str, THUMB_REG_LO)) == FAIL
8809 || *str++ != ']')
8810 {
8811 if (! inst.error)
8812 inst.error = _("syntax: ldrs[b] Rd, [Rb, Ro]");
8813 return;
8814 }
8815
8816 inst.instruction |= Rd | (Rb << 3) | (Ro << 6);
8817 end_of_line (str);
8818 }
8819
8820 static void
8821 do_t_lsl (str)
8822 char * str;
8823 {
8824 thumb_shift (str, THUMB_LSL);
8825 }
8826
8827 static void
8828 do_t_lsr (str)
8829 char * str;
8830 {
8831 thumb_shift (str, THUMB_LSR);
8832 }
8833
8834 static void
8835 do_t_mov (str)
8836 char * str;
8837 {
8838 thumb_mov_compare (str, THUMB_MOVE);
8839 }
8840
8841 static void
8842 do_t_push_pop (str)
8843 char * str;
8844 {
8845 long range;
8846
8847 skip_whitespace (str);
8848
8849 if ((range = reg_list (&str)) == FAIL)
8850 {
8851 if (! inst.error)
8852 inst.error = BAD_ARGS;
8853 return;
8854 }
8855
8856 if (inst.reloc.type != BFD_RELOC_NONE)
8857 {
8858 /* This really doesn't seem worth it. */
8859 inst.reloc.type = BFD_RELOC_NONE;
8860 inst.error = _("expression too complex");
8861 return;
8862 }
8863
8864 if (range & ~0xff)
8865 {
8866 if ((inst.instruction == T_OPCODE_PUSH
8867 && (range & ~0xff) == 1 << REG_LR)
8868 || (inst.instruction == T_OPCODE_POP
8869 && (range & ~0xff) == 1 << REG_PC))
8870 {
8871 inst.instruction |= THUMB_PP_PC_LR;
8872 range &= 0xff;
8873 }
8874 else
8875 {
8876 inst.error = _("invalid register list to push/pop instruction");
8877 return;
8878 }
8879 }
8880
8881 inst.instruction |= range;
8882 end_of_line (str);
8883 }
8884
8885 static void
8886 do_t_str (str)
8887 char * str;
8888 {
8889 thumb_load_store (str, THUMB_STORE, THUMB_WORD);
8890 }
8891
8892 static void
8893 do_t_strb (str)
8894 char * str;
8895 {
8896 thumb_load_store (str, THUMB_STORE, THUMB_BYTE);
8897 }
8898
8899 static void
8900 do_t_strh (str)
8901 char * str;
8902 {
8903 thumb_load_store (str, THUMB_STORE, THUMB_HALFWORD);
8904 }
8905
8906 static void
8907 do_t_sub (str)
8908 char * str;
8909 {
8910 thumb_add_sub (str, 1);
8911 }
8912
8913 static void
8914 do_t_swi (str)
8915 char * str;
8916 {
8917 skip_whitespace (str);
8918
8919 if (my_get_expression (&inst.reloc.exp, &str))
8920 return;
8921
8922 inst.reloc.type = BFD_RELOC_ARM_SWI;
8923 end_of_line (str);
8924 return;
8925 }
8926
8927 static void
8928 do_t_adr (str)
8929 char * str;
8930 {
8931 int reg;
8932
8933 /* This is a pseudo-op of the form "adr rd, label" to be converted
8934 into a relative address of the form "add rd, pc, #label-.-4". */
8935 skip_whitespace (str);
8936
8937 /* Store Rd in temporary location inside instruction. */
8938 if ((reg = reg_required_here (&str, 4)) == FAIL
8939 || (reg > 7) /* For Thumb reg must be r0..r7. */
8940 || skip_past_comma (&str) == FAIL
8941 || my_get_expression (&inst.reloc.exp, &str))
8942 {
8943 if (!inst.error)
8944 inst.error = BAD_ARGS;
8945 return;
8946 }
8947
8948 inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
8949 inst.reloc.exp.X_add_number -= 4; /* PC relative adjust. */
8950 inst.reloc.pc_rel = 1;
8951 inst.instruction |= REG_PC; /* Rd is already placed into the instruction. */
8952
8953 end_of_line (str);
8954 }
8955
8956 static void
8957 insert_reg (r, htab)
8958 const struct reg_entry *r;
8959 struct hash_control *htab;
8960 {
8961 int len = strlen (r->name) + 2;
8962 char * buf = (char *) xmalloc (len);
8963 char * buf2 = (char *) xmalloc (len);
8964 int i = 0;
8965
8966 #ifdef REGISTER_PREFIX
8967 buf[i++] = REGISTER_PREFIX;
8968 #endif
8969
8970 strcpy (buf + i, r->name);
8971
8972 for (i = 0; buf[i]; i++)
8973 buf2[i] = TOUPPER (buf[i]);
8974
8975 buf2[i] = '\0';
8976
8977 hash_insert (htab, buf, (PTR) r);
8978 hash_insert (htab, buf2, (PTR) r);
8979 }
8980
8981 static void
8982 build_reg_hsh (map)
8983 struct reg_map *map;
8984 {
8985 const struct reg_entry *r;
8986
8987 if ((map->htab = hash_new ()) == NULL)
8988 as_fatal (_("virtual memory exhausted"));
8989
8990 for (r = map->names; r->name != NULL; r++)
8991 insert_reg (r, map->htab);
8992 }
8993
8994 static void
8995 insert_reg_alias (str, regnum, htab)
8996 char *str;
8997 int regnum;
8998 struct hash_control *htab;
8999 {
9000 struct reg_entry *new =
9001 (struct reg_entry *) xmalloc (sizeof (struct reg_entry));
9002 char *name = xmalloc (strlen (str) + 1);
9003 strcpy (name, str);
9004
9005 new->name = name;
9006 new->number = regnum;
9007
9008 hash_insert (htab, name, (PTR) new);
9009 }
9010
9011 /* Look for the .req directive. This is of the form:
9012
9013 newname .req existing_name
9014
9015 If we find one, or if it looks sufficiently like one that we want to
9016 handle any error here, return non-zero. Otherwise return zero. */
9017 static int
9018 create_register_alias (newname, p)
9019 char *newname;
9020 char *p;
9021 {
9022 char *q;
9023 char c;
9024
9025 q = p;
9026 skip_whitespace (q);
9027
9028 c = *p;
9029 *p = '\0';
9030
9031 if (*q && !strncmp (q, ".req ", 5))
9032 {
9033 char *copy_of_str;
9034 char *r;
9035
9036 #ifdef IGNORE_OPCODE_CASE
9037 newname = original_case_string;
9038 #endif
9039 copy_of_str = newname;
9040
9041 q += 4;
9042 skip_whitespace (q);
9043
9044 for (r = q; *r != '\0'; r++)
9045 if (*r == ' ')
9046 break;
9047
9048 if (r != q)
9049 {
9050 enum arm_reg_type new_type, old_type;
9051 int old_regno;
9052 char d = *r;
9053
9054 *r = '\0';
9055 old_type = arm_reg_parse_any (q);
9056 *r = d;
9057
9058 new_type = arm_reg_parse_any (newname);
9059
9060 if (new_type == REG_TYPE_MAX)
9061 {
9062 if (old_type != REG_TYPE_MAX)
9063 {
9064 old_regno = arm_reg_parse (&q, all_reg_maps[old_type].htab);
9065 insert_reg_alias (newname, old_regno,
9066 all_reg_maps[old_type].htab);
9067 }
9068 else
9069 as_warn (_("register '%s' does not exist\n"), q);
9070 }
9071 else if (old_type == REG_TYPE_MAX)
9072 {
9073 as_warn (_("ignoring redefinition of register alias '%s' to non-existant register '%s'"),
9074 copy_of_str, q);
9075 }
9076 else
9077 {
9078 /* Do not warn about redefinitions to the same alias. */
9079 if (new_type != old_type
9080 || (arm_reg_parse (&q, all_reg_maps[old_type].htab)
9081 != arm_reg_parse (&q, all_reg_maps[new_type].htab)))
9082 as_warn (_("ignoring redefinition of register alias '%s'"),
9083 copy_of_str);
9084
9085 }
9086 }
9087 else
9088 as_warn (_("ignoring incomplete .req pseuso op"));
9089
9090 *p = c;
9091 return 1;
9092 }
9093 *p = c;
9094 return 0;
9095 }
9096
9097 static void
9098 set_constant_flonums ()
9099 {
9100 int i;
9101
9102 for (i = 0; i < NUM_FLOAT_VALS; i++)
9103 if (atof_ieee ((char *) fp_const[i], 'x', fp_values[i]) == NULL)
9104 abort ();
9105 }
9106
9107 /* Iterate over the base tables to create the instruction patterns. */
9108 static void
9109 build_arm_ops_hsh ()
9110 {
9111 unsigned int i;
9112 unsigned int j;
9113 static struct obstack insn_obstack;
9114
9115 obstack_begin (&insn_obstack, 4000);
9116
9117 for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
9118 {
9119 const struct asm_opcode *insn = insns + i;
9120
9121 if (insn->cond_offset != 0)
9122 {
9123 /* Insn supports conditional execution. Build the varaints
9124 and insert them in the hash table. */
9125 for (j = 0; j < sizeof (conds) / sizeof (struct asm_cond); j++)
9126 {
9127 unsigned len = strlen (insn->template);
9128 struct asm_opcode *new;
9129 char *template;
9130
9131 new = obstack_alloc (&insn_obstack, sizeof (struct asm_opcode));
9132 /* All condition codes are two characters. */
9133 template = obstack_alloc (&insn_obstack, len + 3);
9134
9135 strncpy (template, insn->template, insn->cond_offset);
9136 strcpy (template + insn->cond_offset, conds[j].template);
9137 if (len > insn->cond_offset)
9138 strcpy (template + insn->cond_offset + 2,
9139 insn->template + insn->cond_offset);
9140 new->template = template;
9141 new->cond_offset = 0;
9142 new->variant = insn->variant;
9143 new->parms = insn->parms;
9144 new->value = (insn->value & ~COND_MASK) | conds[j].value;
9145
9146 hash_insert (arm_ops_hsh, new->template, (PTR) new);
9147 }
9148 }
9149 /* Finally, insert the unconditional insn in the table directly;
9150 no need to build a copy. */
9151 hash_insert (arm_ops_hsh, insn->template, (PTR) insn);
9152 }
9153 }
9154
9155 void
9156 md_begin ()
9157 {
9158 unsigned mach;
9159 unsigned int i;
9160
9161 if ( (arm_ops_hsh = hash_new ()) == NULL
9162 || (arm_tops_hsh = hash_new ()) == NULL
9163 || (arm_cond_hsh = hash_new ()) == NULL
9164 || (arm_shift_hsh = hash_new ()) == NULL
9165 || (arm_psr_hsh = hash_new ()) == NULL)
9166 as_fatal (_("virtual memory exhausted"));
9167
9168 build_arm_ops_hsh ();
9169 for (i = 0; i < sizeof (tinsns) / sizeof (struct thumb_opcode); i++)
9170 hash_insert (arm_tops_hsh, tinsns[i].template, (PTR) (tinsns + i));
9171 for (i = 0; i < sizeof (conds) / sizeof (struct asm_cond); i++)
9172 hash_insert (arm_cond_hsh, conds[i].template, (PTR) (conds + i));
9173 for (i = 0; i < sizeof (shift_names) / sizeof (struct asm_shift_name); i++)
9174 hash_insert (arm_shift_hsh, shift_names[i].name, (PTR) (shift_names + i));
9175 for (i = 0; i < sizeof (psrs) / sizeof (struct asm_psr); i++)
9176 hash_insert (arm_psr_hsh, psrs[i].template, (PTR) (psrs + i));
9177
9178 for (i = (int) REG_TYPE_FIRST; i < (int) REG_TYPE_MAX; i++)
9179 build_reg_hsh (all_reg_maps + i);
9180
9181 set_constant_flonums ();
9182
9183 /* Set the cpu variant based on the command-line options. We prefer
9184 -mcpu= over -march= if both are set (as for GCC); and we prefer
9185 -mfpu= over any other way of setting the floating point unit.
9186 Use of legacy options with new options are faulted. */
9187 if (legacy_cpu != -1)
9188 {
9189 if (mcpu_cpu_opt != -1 || march_cpu_opt != -1)
9190 as_bad (_("use of old and new-style options to set CPU type"));
9191
9192 mcpu_cpu_opt = legacy_cpu;
9193 }
9194 else if (mcpu_cpu_opt == -1)
9195 mcpu_cpu_opt = march_cpu_opt;
9196
9197 if (legacy_fpu != -1)
9198 {
9199 if (mfpu_opt != -1)
9200 as_bad (_("use of old and new-style options to set FPU type"));
9201
9202 mfpu_opt = legacy_fpu;
9203 }
9204 else if (mfpu_opt == -1)
9205 {
9206 if (mcpu_fpu_opt != -1)
9207 mfpu_opt = mcpu_fpu_opt;
9208 else
9209 mfpu_opt = march_fpu_opt;
9210 }
9211
9212 if (mfpu_opt == -1)
9213 {
9214 if (mcpu_cpu_opt == -1)
9215 mfpu_opt = FPU_DEFAULT;
9216 else if (mcpu_cpu_opt & ARM_EXT_V5)
9217 mfpu_opt = FPU_ARCH_VFP_V2;
9218 else
9219 mfpu_opt = FPU_ARCH_FPA;
9220 }
9221
9222 if (mcpu_cpu_opt == -1)
9223 mcpu_cpu_opt = CPU_DEFAULT;
9224
9225 cpu_variant = mcpu_cpu_opt | mfpu_opt;
9226
9227 #if defined OBJ_COFF || defined OBJ_ELF
9228 {
9229 unsigned int flags = 0;
9230
9231 /* Set the flags in the private structure. */
9232 if (uses_apcs_26) flags |= F_APCS26;
9233 if (support_interwork) flags |= F_INTERWORK;
9234 if (uses_apcs_float) flags |= F_APCS_FLOAT;
9235 if (pic_code) flags |= F_PIC;
9236 if ((cpu_variant & FPU_ANY) == FPU_NONE
9237 || (cpu_variant & FPU_ANY) == FPU_ARCH_VFP) /* VFP layout only. */
9238 flags |= F_SOFT_FLOAT;
9239 /* Using VFP conventions (even if soft-float). */
9240 if (cpu_variant & FPU_VFP_EXT_NONE) flags |= F_VFP_FLOAT;
9241
9242
9243 bfd_set_private_flags (stdoutput, flags);
9244
9245 /* We have run out flags in the COFF header to encode the
9246 status of ATPCS support, so instead we create a dummy,
9247 empty, debug section called .arm.atpcs. */
9248 if (atpcs)
9249 {
9250 asection * sec;
9251
9252 sec = bfd_make_section (stdoutput, ".arm.atpcs");
9253
9254 if (sec != NULL)
9255 {
9256 bfd_set_section_flags
9257 (stdoutput, sec, SEC_READONLY | SEC_DEBUGGING /* | SEC_HAS_CONTENTS */);
9258 bfd_set_section_size (stdoutput, sec, 0);
9259 bfd_set_section_contents (stdoutput, sec, NULL, 0, 0);
9260 }
9261 }
9262 }
9263 #endif
9264
9265 /* Record the CPU type as well. */
9266 switch (cpu_variant & ARM_CPU_MASK)
9267 {
9268 case ARM_2:
9269 mach = bfd_mach_arm_2;
9270 break;
9271
9272 case ARM_3: /* Also ARM_250. */
9273 mach = bfd_mach_arm_2a;
9274 break;
9275
9276 case ARM_6: /* Also ARM_7. */
9277 mach = bfd_mach_arm_3;
9278 break;
9279
9280 default:
9281 mach = bfd_mach_arm_4;
9282 break;
9283 }
9284
9285 /* Catch special cases. */
9286 if (cpu_variant & ARM_CEXT_XSCALE)
9287 mach = bfd_mach_arm_XScale;
9288 else if (cpu_variant & ARM_EXT_V5E)
9289 mach = bfd_mach_arm_5TE;
9290 else if (cpu_variant & ARM_EXT_V5)
9291 {
9292 if (cpu_variant & ARM_EXT_V4T)
9293 mach = bfd_mach_arm_5T;
9294 else
9295 mach = bfd_mach_arm_5;
9296 }
9297 else if (cpu_variant & ARM_EXT_V4)
9298 {
9299 if (cpu_variant & ARM_EXT_V4T)
9300 mach = bfd_mach_arm_4T;
9301 else
9302 mach = bfd_mach_arm_4;
9303 }
9304 else if (cpu_variant & ARM_EXT_V3M)
9305 mach = bfd_mach_arm_3M;
9306
9307 bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach);
9308 }
9309
9310 /* Turn an integer of n bytes (in val) into a stream of bytes appropriate
9311 for use in the a.out file, and stores them in the array pointed to by buf.
9312 This knows about the endian-ness of the target machine and does
9313 THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
9314 2 (short) and 4 (long) Floating numbers are put out as a series of
9315 LITTLENUMS (shorts, here at least). */
9316
9317 void
9318 md_number_to_chars (buf, val, n)
9319 char * buf;
9320 valueT val;
9321 int n;
9322 {
9323 if (target_big_endian)
9324 number_to_chars_bigendian (buf, val, n);
9325 else
9326 number_to_chars_littleendian (buf, val, n);
9327 }
9328
9329 static valueT
9330 md_chars_to_number (buf, n)
9331 char * buf;
9332 int n;
9333 {
9334 valueT result = 0;
9335 unsigned char * where = (unsigned char *) buf;
9336
9337 if (target_big_endian)
9338 {
9339 while (n--)
9340 {
9341 result <<= 8;
9342 result |= (*where++ & 255);
9343 }
9344 }
9345 else
9346 {
9347 while (n--)
9348 {
9349 result <<= 8;
9350 result |= (where[n] & 255);
9351 }
9352 }
9353
9354 return result;
9355 }
9356
9357 /* Turn a string in input_line_pointer into a floating point constant
9358 of type TYPE, and store the appropriate bytes in *LITP. The number
9359 of LITTLENUMS emitted is stored in *SIZEP. An error message is
9360 returned, or NULL on OK.
9361
9362 Note that fp constants aren't represent in the normal way on the ARM.
9363 In big endian mode, things are as expected. However, in little endian
9364 mode fp constants are big-endian word-wise, and little-endian byte-wise
9365 within the words. For example, (double) 1.1 in big endian mode is
9366 the byte sequence 3f f1 99 99 99 99 99 9a, and in little endian mode is
9367 the byte sequence 99 99 f1 3f 9a 99 99 99.
9368
9369 ??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
9370
9371 char *
9372 md_atof (type, litP, sizeP)
9373 char type;
9374 char * litP;
9375 int * sizeP;
9376 {
9377 int prec;
9378 LITTLENUM_TYPE words[MAX_LITTLENUMS];
9379 char *t;
9380 int i;
9381
9382 switch (type)
9383 {
9384 case 'f':
9385 case 'F':
9386 case 's':
9387 case 'S':
9388 prec = 2;
9389 break;
9390
9391 case 'd':
9392 case 'D':
9393 case 'r':
9394 case 'R':
9395 prec = 4;
9396 break;
9397
9398 case 'x':
9399 case 'X':
9400 prec = 6;
9401 break;
9402
9403 case 'p':
9404 case 'P':
9405 prec = 6;
9406 break;
9407
9408 default:
9409 *sizeP = 0;
9410 return _("bad call to MD_ATOF()");
9411 }
9412
9413 t = atof_ieee (input_line_pointer, type, words);
9414 if (t)
9415 input_line_pointer = t;
9416 *sizeP = prec * 2;
9417
9418 if (target_big_endian)
9419 {
9420 for (i = 0; i < prec; i++)
9421 {
9422 md_number_to_chars (litP, (valueT) words[i], 2);
9423 litP += 2;
9424 }
9425 }
9426 else
9427 {
9428 if (cpu_variant & FPU_ARCH_VFP)
9429 for (i = prec - 1; i >= 0; i--)
9430 {
9431 md_number_to_chars (litP, (valueT) words[i], 2);
9432 litP += 2;
9433 }
9434 else
9435 /* For a 4 byte float the order of elements in `words' is 1 0.
9436 For an 8 byte float the order is 1 0 3 2. */
9437 for (i = 0; i < prec; i += 2)
9438 {
9439 md_number_to_chars (litP, (valueT) words[i + 1], 2);
9440 md_number_to_chars (litP + 2, (valueT) words[i], 2);
9441 litP += 4;
9442 }
9443 }
9444
9445 return 0;
9446 }
9447
9448 /* The knowledge of the PC's pipeline offset is built into the insns
9449 themselves. */
9450
9451 long
9452 md_pcrel_from (fixP)
9453 fixS * fixP;
9454 {
9455 if (fixP->fx_addsy
9456 && S_GET_SEGMENT (fixP->fx_addsy) == undefined_section
9457 && fixP->fx_subsy == NULL)
9458 return 0;
9459
9460 if (fixP->fx_pcrel && (fixP->fx_r_type == BFD_RELOC_ARM_THUMB_ADD))
9461 {
9462 /* PC relative addressing on the Thumb is slightly odd
9463 as the bottom two bits of the PC are forced to zero
9464 for the calculation. */
9465 return (fixP->fx_where + fixP->fx_frag->fr_address) & ~3;
9466 }
9467
9468 #ifdef TE_WINCE
9469 /* The pattern was adjusted to accomodate CE's off-by-one fixups,
9470 so we un-adjust here to compensate for the accomodation. */
9471 return fixP->fx_where + fixP->fx_frag->fr_address + 8;
9472 #else
9473 return fixP->fx_where + fixP->fx_frag->fr_address;
9474 #endif
9475 }
9476
9477 /* Round up a section size to the appropriate boundary. */
9478
9479 valueT
9480 md_section_align (segment, size)
9481 segT segment ATTRIBUTE_UNUSED;
9482 valueT size;
9483 {
9484 #ifdef OBJ_ELF
9485 return size;
9486 #else
9487 /* Round all sects to multiple of 4. */
9488 return (size + 3) & ~3;
9489 #endif
9490 }
9491
9492 /* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
9493 Otherwise we have no need to default values of symbols. */
9494
9495 symbolS *
9496 md_undefined_symbol (name)
9497 char * name ATTRIBUTE_UNUSED;
9498 {
9499 #ifdef OBJ_ELF
9500 if (name[0] == '_' && name[1] == 'G'
9501 && streq (name, GLOBAL_OFFSET_TABLE_NAME))
9502 {
9503 if (!GOT_symbol)
9504 {
9505 if (symbol_find (name))
9506 as_bad ("GOT already in the symbol table");
9507
9508 GOT_symbol = symbol_new (name, undefined_section,
9509 (valueT) 0, & zero_address_frag);
9510 }
9511
9512 return GOT_symbol;
9513 }
9514 #endif
9515
9516 return 0;
9517 }
9518
9519 /* arm_reg_parse () := if it looks like a register, return its token and
9520 advance the pointer. */
9521
9522 static int
9523 arm_reg_parse (ccp, htab)
9524 register char ** ccp;
9525 struct hash_control *htab;
9526 {
9527 char * start = * ccp;
9528 char c;
9529 char * p;
9530 struct reg_entry * reg;
9531
9532 #ifdef REGISTER_PREFIX
9533 if (*start != REGISTER_PREFIX)
9534 return FAIL;
9535 p = start + 1;
9536 #else
9537 p = start;
9538 #ifdef OPTIONAL_REGISTER_PREFIX
9539 if (*p == OPTIONAL_REGISTER_PREFIX)
9540 p++, start++;
9541 #endif
9542 #endif
9543 if (!ISALPHA (*p) || !is_name_beginner (*p))
9544 return FAIL;
9545
9546 c = *p++;
9547 while (ISALPHA (c) || ISDIGIT (c) || c == '_')
9548 c = *p++;
9549
9550 *--p = 0;
9551 reg = (struct reg_entry *) hash_find (htab, start);
9552 *p = c;
9553
9554 if (reg)
9555 {
9556 *ccp = p;
9557 return reg->number;
9558 }
9559
9560 return FAIL;
9561 }
9562
9563 /* Search for the following register name in each of the possible reg name
9564 tables. Return the classification if found, or REG_TYPE_MAX if not
9565 present. */
9566 static enum arm_reg_type
9567 arm_reg_parse_any (cp)
9568 char *cp;
9569 {
9570 int i;
9571
9572 for (i = (int) REG_TYPE_FIRST; i < (int) REG_TYPE_MAX; i++)
9573 if (arm_reg_parse (&cp, all_reg_maps[i].htab) != FAIL)
9574 return (enum arm_reg_type) i;
9575
9576 return REG_TYPE_MAX;
9577 }
9578
9579 void
9580 md_apply_fix3 (fixP, valP, seg)
9581 fixS * fixP;
9582 valueT * valP;
9583 segT seg;
9584 {
9585 offsetT value = * valP;
9586 offsetT newval;
9587 unsigned int newimm;
9588 unsigned long temp;
9589 int sign;
9590 char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
9591 arm_fix_data * arm_data = (arm_fix_data *) fixP->tc_fix_data;
9592
9593 assert (fixP->fx_r_type < BFD_RELOC_UNUSED);
9594
9595 /* Note whether this will delete the relocation. */
9596 #if 0
9597 /* Patch from REarnshaw to JDavis (disabled for the moment, since it
9598 doesn't work fully.) */
9599 if ((fixP->fx_addsy == 0 || symbol_constant_p (fixP->fx_addsy))
9600 && !fixP->fx_pcrel)
9601 #else
9602 if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
9603 #endif
9604 fixP->fx_done = 1;
9605
9606 /* If this symbol is in a different section then we need to leave it for
9607 the linker to deal with. Unfortunately, md_pcrel_from can't tell,
9608 so we have to undo it's effects here. */
9609 if (fixP->fx_pcrel)
9610 {
9611 if (fixP->fx_addsy != NULL
9612 && S_IS_DEFINED (fixP->fx_addsy)
9613 && S_GET_SEGMENT (fixP->fx_addsy) != seg)
9614 {
9615 if (target_oabi
9616 && (fixP->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
9617 || fixP->fx_r_type == BFD_RELOC_ARM_PCREL_BLX
9618 ))
9619 value = 0;
9620 else
9621 value += md_pcrel_from (fixP);
9622 }
9623 }
9624
9625 /* Remember value for emit_reloc. */
9626 fixP->fx_addnumber = value;
9627
9628 switch (fixP->fx_r_type)
9629 {
9630 case BFD_RELOC_ARM_IMMEDIATE:
9631 newimm = validate_immediate (value);
9632 temp = md_chars_to_number (buf, INSN_SIZE);
9633
9634 /* If the instruction will fail, see if we can fix things up by
9635 changing the opcode. */
9636 if (newimm == (unsigned int) FAIL
9637 && (newimm = negate_data_op (&temp, value)) == (unsigned int) FAIL)
9638 {
9639 as_bad_where (fixP->fx_file, fixP->fx_line,
9640 _("invalid constant (%lx) after fixup"),
9641 (unsigned long) value);
9642 break;
9643 }
9644
9645 newimm |= (temp & 0xfffff000);
9646 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
9647 break;
9648
9649 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
9650 {
9651 unsigned int highpart = 0;
9652 unsigned int newinsn = 0xe1a00000; /* nop. */
9653 newimm = validate_immediate (value);
9654 temp = md_chars_to_number (buf, INSN_SIZE);
9655
9656 /* If the instruction will fail, see if we can fix things up by
9657 changing the opcode. */
9658 if (newimm == (unsigned int) FAIL
9659 && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
9660 {
9661 /* No ? OK - try using two ADD instructions to generate
9662 the value. */
9663 newimm = validate_immediate_twopart (value, & highpart);
9664
9665 /* Yes - then make sure that the second instruction is
9666 also an add. */
9667 if (newimm != (unsigned int) FAIL)
9668 newinsn = temp;
9669 /* Still No ? Try using a negated value. */
9670 else if ((newimm = validate_immediate_twopart (- value, & highpart)) != (unsigned int) FAIL)
9671 temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
9672 /* Otherwise - give up. */
9673 else
9674 {
9675 as_bad_where (fixP->fx_file, fixP->fx_line,
9676 _("unable to compute ADRL instructions for PC offset of 0x%lx"),
9677 value);
9678 break;
9679 }
9680
9681 /* Replace the first operand in the 2nd instruction (which
9682 is the PC) with the destination register. We have
9683 already added in the PC in the first instruction and we
9684 do not want to do it again. */
9685 newinsn &= ~ 0xf0000;
9686 newinsn |= ((newinsn & 0x0f000) << 4);
9687 }
9688
9689 newimm |= (temp & 0xfffff000);
9690 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
9691
9692 highpart |= (newinsn & 0xfffff000);
9693 md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
9694 }
9695 break;
9696
9697 case BFD_RELOC_ARM_OFFSET_IMM:
9698 sign = value >= 0;
9699
9700 if (value < 0)
9701 value = - value;
9702
9703 if (validate_offset_imm (value, 0) == FAIL)
9704 {
9705 as_bad_where (fixP->fx_file, fixP->fx_line,
9706 _("bad immediate value for offset (%ld)"),
9707 (long) value);
9708 break;
9709 }
9710
9711 newval = md_chars_to_number (buf, INSN_SIZE);
9712 newval &= 0xff7ff000;
9713 newval |= value | (sign ? INDEX_UP : 0);
9714 md_number_to_chars (buf, newval, INSN_SIZE);
9715 break;
9716
9717 case BFD_RELOC_ARM_OFFSET_IMM8:
9718 case BFD_RELOC_ARM_HWLITERAL:
9719 sign = value >= 0;
9720
9721 if (value < 0)
9722 value = - value;
9723
9724 if (validate_offset_imm (value, 1) == FAIL)
9725 {
9726 if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
9727 as_bad_where (fixP->fx_file, fixP->fx_line,
9728 _("invalid literal constant: pool needs to be closer"));
9729 else
9730 as_bad (_("bad immediate value for half-word offset (%ld)"),
9731 (long) value);
9732 break;
9733 }
9734
9735 newval = md_chars_to_number (buf, INSN_SIZE);
9736 newval &= 0xff7ff0f0;
9737 newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
9738 md_number_to_chars (buf, newval, INSN_SIZE);
9739 break;
9740
9741 case BFD_RELOC_ARM_LITERAL:
9742 sign = value >= 0;
9743
9744 if (value < 0)
9745 value = - value;
9746
9747 if (validate_offset_imm (value, 0) == FAIL)
9748 {
9749 as_bad_where (fixP->fx_file, fixP->fx_line,
9750 _("invalid literal constant: pool needs to be closer"));
9751 break;
9752 }
9753
9754 newval = md_chars_to_number (buf, INSN_SIZE);
9755 newval &= 0xff7ff000;
9756 newval |= value | (sign ? INDEX_UP : 0);
9757 md_number_to_chars (buf, newval, INSN_SIZE);
9758 break;
9759
9760 case BFD_RELOC_ARM_SHIFT_IMM:
9761 newval = md_chars_to_number (buf, INSN_SIZE);
9762 if (((unsigned long) value) > 32
9763 || (value == 32
9764 && (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
9765 {
9766 as_bad_where (fixP->fx_file, fixP->fx_line,
9767 _("shift expression is too large"));
9768 break;
9769 }
9770
9771 if (value == 0)
9772 /* Shifts of zero must be done as lsl. */
9773 newval &= ~0x60;
9774 else if (value == 32)
9775 value = 0;
9776 newval &= 0xfffff07f;
9777 newval |= (value & 0x1f) << 7;
9778 md_number_to_chars (buf, newval, INSN_SIZE);
9779 break;
9780
9781 case BFD_RELOC_ARM_SWI:
9782 if (arm_data->thumb_mode)
9783 {
9784 if (((unsigned long) value) > 0xff)
9785 as_bad_where (fixP->fx_file, fixP->fx_line,
9786 _("invalid swi expression"));
9787 newval = md_chars_to_number (buf, THUMB_SIZE) & 0xff00;
9788 newval |= value;
9789 md_number_to_chars (buf, newval, THUMB_SIZE);
9790 }
9791 else
9792 {
9793 if (((unsigned long) value) > 0x00ffffff)
9794 as_bad_where (fixP->fx_file, fixP->fx_line,
9795 _("invalid swi expression"));
9796 newval = md_chars_to_number (buf, INSN_SIZE) & 0xff000000;
9797 newval |= value;
9798 md_number_to_chars (buf, newval, INSN_SIZE);
9799 }
9800 break;
9801
9802 case BFD_RELOC_ARM_MULTI:
9803 if (((unsigned long) value) > 0xffff)
9804 as_bad_where (fixP->fx_file, fixP->fx_line,
9805 _("invalid expression in load/store multiple"));
9806 newval = value | md_chars_to_number (buf, INSN_SIZE);
9807 md_number_to_chars (buf, newval, INSN_SIZE);
9808 break;
9809
9810 case BFD_RELOC_ARM_PCREL_BRANCH:
9811 newval = md_chars_to_number (buf, INSN_SIZE);
9812
9813 /* Sign-extend a 24-bit number. */
9814 #define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
9815
9816 #ifdef OBJ_ELF
9817 if (! target_oabi)
9818 value = fixP->fx_offset;
9819 #endif
9820
9821 /* We are going to store value (shifted right by two) in the
9822 instruction, in a 24 bit, signed field. Thus we need to check
9823 that none of the top 8 bits of the shifted value (top 7 bits of
9824 the unshifted, unsigned value) are set, or that they are all set. */
9825 if ((value & ~ ((offsetT) 0x1ffffff)) != 0
9826 && ((value & ~ ((offsetT) 0x1ffffff)) != ~ ((offsetT) 0x1ffffff)))
9827 {
9828 #ifdef OBJ_ELF
9829 /* Normally we would be stuck at this point, since we cannot store
9830 the absolute address that is the destination of the branch in the
9831 24 bits of the branch instruction. If however, we happen to know
9832 that the destination of the branch is in the same section as the
9833 branch instruciton itself, then we can compute the relocation for
9834 ourselves and not have to bother the linker with it.
9835
9836 FIXME: The tests for OBJ_ELF and ! target_oabi are only here
9837 because I have not worked out how to do this for OBJ_COFF or
9838 target_oabi. */
9839 if (! target_oabi
9840 && fixP->fx_addsy != NULL
9841 && S_IS_DEFINED (fixP->fx_addsy)
9842 && S_GET_SEGMENT (fixP->fx_addsy) == seg)
9843 {
9844 /* Get pc relative value to go into the branch. */
9845 value = * valP;
9846
9847 /* Permit a backward branch provided that enough bits
9848 are set. Allow a forwards branch, provided that
9849 enough bits are clear. */
9850 if ( (value & ~ ((offsetT) 0x1ffffff)) == ~ ((offsetT) 0x1ffffff)
9851 || (value & ~ ((offsetT) 0x1ffffff)) == 0)
9852 fixP->fx_done = 1;
9853 }
9854
9855 if (! fixP->fx_done)
9856 #endif
9857 as_bad_where (fixP->fx_file, fixP->fx_line,
9858 _("GAS can't handle same-section branch dest >= 0x04000000"));
9859 }
9860
9861 value >>= 2;
9862 value += SEXT24 (newval);
9863
9864 if ( (value & ~ ((offsetT) 0xffffff)) != 0
9865 && ((value & ~ ((offsetT) 0xffffff)) != ~ ((offsetT) 0xffffff)))
9866 as_bad_where (fixP->fx_file, fixP->fx_line,
9867 _("out of range branch"));
9868
9869 newval = (value & 0x00ffffff) | (newval & 0xff000000);
9870 md_number_to_chars (buf, newval, INSN_SIZE);
9871 break;
9872
9873 case BFD_RELOC_ARM_PCREL_BLX:
9874 {
9875 offsetT hbit;
9876 newval = md_chars_to_number (buf, INSN_SIZE);
9877
9878 #ifdef OBJ_ELF
9879 if (! target_oabi)
9880 value = fixP->fx_offset;
9881 #endif
9882 hbit = (value >> 1) & 1;
9883 value = (value >> 2) & 0x00ffffff;
9884 value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
9885 newval = value | (newval & 0xfe000000) | (hbit << 24);
9886 md_number_to_chars (buf, newval, INSN_SIZE);
9887 }
9888 break;
9889
9890 case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
9891 newval = md_chars_to_number (buf, THUMB_SIZE);
9892 {
9893 addressT diff = (newval & 0xff) << 1;
9894 if (diff & 0x100)
9895 diff |= ~0xff;
9896
9897 value += diff;
9898 if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
9899 as_bad_where (fixP->fx_file, fixP->fx_line,
9900 _("branch out of range"));
9901 newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
9902 }
9903 md_number_to_chars (buf, newval, THUMB_SIZE);
9904 break;
9905
9906 case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
9907 newval = md_chars_to_number (buf, THUMB_SIZE);
9908 {
9909 addressT diff = (newval & 0x7ff) << 1;
9910 if (diff & 0x800)
9911 diff |= ~0x7ff;
9912
9913 value += diff;
9914 if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
9915 as_bad_where (fixP->fx_file, fixP->fx_line,
9916 _("branch out of range"));
9917 newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
9918 }
9919 md_number_to_chars (buf, newval, THUMB_SIZE);
9920 break;
9921
9922 case BFD_RELOC_THUMB_PCREL_BLX:
9923 case BFD_RELOC_THUMB_PCREL_BRANCH23:
9924 {
9925 offsetT newval2;
9926 addressT diff;
9927
9928 newval = md_chars_to_number (buf, THUMB_SIZE);
9929 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
9930 diff = ((newval & 0x7ff) << 12) | ((newval2 & 0x7ff) << 1);
9931 if (diff & 0x400000)
9932 diff |= ~0x3fffff;
9933 #ifdef OBJ_ELF
9934 value = fixP->fx_offset;
9935 #endif
9936 value += diff;
9937 if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
9938 as_bad_where (fixP->fx_file, fixP->fx_line,
9939 _("branch with link out of range"));
9940
9941 newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
9942 newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1);
9943 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
9944 /* Remove bit zero of the adjusted offset. Bit zero can only be
9945 set if the upper insn is at a half-word boundary, since the
9946 destination address, an ARM instruction, must always be on a
9947 word boundary. The semantics of the BLX (1) instruction, however,
9948 are that bit zero in the offset must always be zero, and the
9949 corresponding bit one in the target address will be set from bit
9950 one of the source address. */
9951 newval2 &= ~1;
9952 md_number_to_chars (buf, newval, THUMB_SIZE);
9953 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
9954 }
9955 break;
9956
9957 case BFD_RELOC_8:
9958 if (fixP->fx_done || fixP->fx_pcrel)
9959 md_number_to_chars (buf, value, 1);
9960 #ifdef OBJ_ELF
9961 else if (!target_oabi)
9962 {
9963 value = fixP->fx_offset;
9964 md_number_to_chars (buf, value, 1);
9965 }
9966 #endif
9967 break;
9968
9969 case BFD_RELOC_16:
9970 if (fixP->fx_done || fixP->fx_pcrel)
9971 md_number_to_chars (buf, value, 2);
9972 #ifdef OBJ_ELF
9973 else if (!target_oabi)
9974 {
9975 value = fixP->fx_offset;
9976 md_number_to_chars (buf, value, 2);
9977 }
9978 #endif
9979 break;
9980
9981 #ifdef OBJ_ELF
9982 case BFD_RELOC_ARM_GOT32:
9983 case BFD_RELOC_ARM_GOTOFF:
9984 md_number_to_chars (buf, 0, 4);
9985 break;
9986 #endif
9987
9988 case BFD_RELOC_RVA:
9989 case BFD_RELOC_32:
9990 if (fixP->fx_done || fixP->fx_pcrel)
9991 md_number_to_chars (buf, value, 4);
9992 #ifdef OBJ_ELF
9993 else if (!target_oabi)
9994 {
9995 value = fixP->fx_offset;
9996 md_number_to_chars (buf, value, 4);
9997 }
9998 #endif
9999 break;
10000
10001 #ifdef OBJ_ELF
10002 case BFD_RELOC_ARM_PLT32:
10003 /* It appears the instruction is fully prepared at this point. */
10004 break;
10005 #endif
10006
10007 case BFD_RELOC_ARM_GOTPC:
10008 md_number_to_chars (buf, value, 4);
10009 break;
10010
10011 case BFD_RELOC_ARM_CP_OFF_IMM:
10012 sign = value >= 0;
10013 if (value < -1023 || value > 1023 || (value & 3))
10014 as_bad_where (fixP->fx_file, fixP->fx_line,
10015 _("illegal value for co-processor offset"));
10016 if (value < 0)
10017 value = -value;
10018 newval = md_chars_to_number (buf, INSN_SIZE) & 0xff7fff00;
10019 newval |= (value >> 2) | (sign ? INDEX_UP : 0);
10020 md_number_to_chars (buf, newval, INSN_SIZE);
10021 break;
10022
10023 case BFD_RELOC_ARM_THUMB_OFFSET:
10024 newval = md_chars_to_number (buf, THUMB_SIZE);
10025 /* Exactly what ranges, and where the offset is inserted depends
10026 on the type of instruction, we can establish this from the
10027 top 4 bits. */
10028 switch (newval >> 12)
10029 {
10030 case 4: /* PC load. */
10031 /* Thumb PC loads are somewhat odd, bit 1 of the PC is
10032 forced to zero for these loads, so we will need to round
10033 up the offset if the instruction address is not word
10034 aligned (since the final address produced must be, and
10035 we can only describe word-aligned immediate offsets). */
10036
10037 if ((fixP->fx_frag->fr_address + fixP->fx_where + value) & 3)
10038 as_bad_where (fixP->fx_file, fixP->fx_line,
10039 _("invalid offset, target not word aligned (0x%08X)"),
10040 (unsigned int) (fixP->fx_frag->fr_address
10041 + fixP->fx_where + value));
10042
10043 if ((value + 2) & ~0x3fe)
10044 as_bad_where (fixP->fx_file, fixP->fx_line,
10045 _("invalid offset, value too big (0x%08lX)"), value);
10046
10047 /* Round up, since pc will be rounded down. */
10048 newval |= (value + 2) >> 2;
10049 break;
10050
10051 case 9: /* SP load/store. */
10052 if (value & ~0x3fc)
10053 as_bad_where (fixP->fx_file, fixP->fx_line,
10054 _("invalid offset, value too big (0x%08lX)"), value);
10055 newval |= value >> 2;
10056 break;
10057
10058 case 6: /* Word load/store. */
10059 if (value & ~0x7c)
10060 as_bad_where (fixP->fx_file, fixP->fx_line,
10061 _("invalid offset, value too big (0x%08lX)"), value);
10062 newval |= value << 4; /* 6 - 2. */
10063 break;
10064
10065 case 7: /* Byte load/store. */
10066 if (value & ~0x1f)
10067 as_bad_where (fixP->fx_file, fixP->fx_line,
10068 _("invalid offset, value too big (0x%08lX)"), value);
10069 newval |= value << 6;
10070 break;
10071
10072 case 8: /* Halfword load/store. */
10073 if (value & ~0x3e)
10074 as_bad_where (fixP->fx_file, fixP->fx_line,
10075 _("invalid offset, value too big (0x%08lX)"), value);
10076 newval |= value << 5; /* 6 - 1. */
10077 break;
10078
10079 default:
10080 as_bad_where (fixP->fx_file, fixP->fx_line,
10081 "Unable to process relocation for thumb opcode: %lx",
10082 (unsigned long) newval);
10083 break;
10084 }
10085 md_number_to_chars (buf, newval, THUMB_SIZE);
10086 break;
10087
10088 case BFD_RELOC_ARM_THUMB_ADD:
10089 /* This is a complicated relocation, since we use it for all of
10090 the following immediate relocations:
10091
10092 3bit ADD/SUB
10093 8bit ADD/SUB
10094 9bit ADD/SUB SP word-aligned
10095 10bit ADD PC/SP word-aligned
10096
10097 The type of instruction being processed is encoded in the
10098 instruction field:
10099
10100 0x8000 SUB
10101 0x00F0 Rd
10102 0x000F Rs
10103 */
10104 newval = md_chars_to_number (buf, THUMB_SIZE);
10105 {
10106 int rd = (newval >> 4) & 0xf;
10107 int rs = newval & 0xf;
10108 int subtract = newval & 0x8000;
10109
10110 if (rd == REG_SP)
10111 {
10112 if (value & ~0x1fc)
10113 as_bad_where (fixP->fx_file, fixP->fx_line,
10114 _("invalid immediate for stack address calculation"));
10115 newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
10116 newval |= value >> 2;
10117 }
10118 else if (rs == REG_PC || rs == REG_SP)
10119 {
10120 if (subtract ||
10121 value & ~0x3fc)
10122 as_bad_where (fixP->fx_file, fixP->fx_line,
10123 _("invalid immediate for address calculation (value = 0x%08lX)"),
10124 (unsigned long) value);
10125 newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
10126 newval |= rd << 8;
10127 newval |= value >> 2;
10128 }
10129 else if (rs == rd)
10130 {
10131 if (value & ~0xff)
10132 as_bad_where (fixP->fx_file, fixP->fx_line,
10133 _("invalid 8bit immediate"));
10134 newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
10135 newval |= (rd << 8) | value;
10136 }
10137 else
10138 {
10139 if (value & ~0x7)
10140 as_bad_where (fixP->fx_file, fixP->fx_line,
10141 _("invalid 3bit immediate"));
10142 newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
10143 newval |= rd | (rs << 3) | (value << 6);
10144 }
10145 }
10146 md_number_to_chars (buf, newval, THUMB_SIZE);
10147 break;
10148
10149 case BFD_RELOC_ARM_THUMB_IMM:
10150 newval = md_chars_to_number (buf, THUMB_SIZE);
10151 switch (newval >> 11)
10152 {
10153 case 0x04: /* 8bit immediate MOV. */
10154 case 0x05: /* 8bit immediate CMP. */
10155 if (value < 0 || value > 255)
10156 as_bad_where (fixP->fx_file, fixP->fx_line,
10157 _("invalid immediate: %ld is too large"),
10158 (long) value);
10159 newval |= value;
10160 break;
10161
10162 default:
10163 abort ();
10164 }
10165 md_number_to_chars (buf, newval, THUMB_SIZE);
10166 break;
10167
10168 case BFD_RELOC_ARM_THUMB_SHIFT:
10169 /* 5bit shift value (0..31). */
10170 if (value < 0 || value > 31)
10171 as_bad_where (fixP->fx_file, fixP->fx_line,
10172 _("illegal Thumb shift value: %ld"), (long) value);
10173 newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf03f;
10174 newval |= value << 6;
10175 md_number_to_chars (buf, newval, THUMB_SIZE);
10176 break;
10177
10178 case BFD_RELOC_VTABLE_INHERIT:
10179 case BFD_RELOC_VTABLE_ENTRY:
10180 fixP->fx_done = 0;
10181 return;
10182
10183 case BFD_RELOC_NONE:
10184 default:
10185 as_bad_where (fixP->fx_file, fixP->fx_line,
10186 _("bad relocation fixup type (%d)"), fixP->fx_r_type);
10187 }
10188 }
10189
10190 /* Translate internal representation of relocation info to BFD target
10191 format. */
10192
10193 arelent *
10194 tc_gen_reloc (section, fixp)
10195 asection * section ATTRIBUTE_UNUSED;
10196 fixS * fixp;
10197 {
10198 arelent * reloc;
10199 bfd_reloc_code_real_type code;
10200
10201 reloc = (arelent *) xmalloc (sizeof (arelent));
10202
10203 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
10204 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
10205 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
10206
10207 /* @@ Why fx_addnumber sometimes and fx_offset other times? */
10208 #ifndef OBJ_ELF
10209 if (fixp->fx_pcrel == 0)
10210 reloc->addend = fixp->fx_offset;
10211 else
10212 reloc->addend = fixp->fx_offset = reloc->address;
10213 #else /* OBJ_ELF */
10214 reloc->addend = fixp->fx_offset;
10215 #endif
10216
10217 switch (fixp->fx_r_type)
10218 {
10219 case BFD_RELOC_8:
10220 if (fixp->fx_pcrel)
10221 {
10222 code = BFD_RELOC_8_PCREL;
10223 break;
10224 }
10225
10226 case BFD_RELOC_16:
10227 if (fixp->fx_pcrel)
10228 {
10229 code = BFD_RELOC_16_PCREL;
10230 break;
10231 }
10232
10233 case BFD_RELOC_32:
10234 if (fixp->fx_pcrel)
10235 {
10236 code = BFD_RELOC_32_PCREL;
10237 break;
10238 }
10239
10240 case BFD_RELOC_ARM_PCREL_BRANCH:
10241 case BFD_RELOC_ARM_PCREL_BLX:
10242 case BFD_RELOC_RVA:
10243 case BFD_RELOC_THUMB_PCREL_BRANCH9:
10244 case BFD_RELOC_THUMB_PCREL_BRANCH12:
10245 case BFD_RELOC_THUMB_PCREL_BRANCH23:
10246 case BFD_RELOC_THUMB_PCREL_BLX:
10247 case BFD_RELOC_VTABLE_ENTRY:
10248 case BFD_RELOC_VTABLE_INHERIT:
10249 code = fixp->fx_r_type;
10250 break;
10251
10252 case BFD_RELOC_ARM_LITERAL:
10253 case BFD_RELOC_ARM_HWLITERAL:
10254 /* If this is called then the a literal has been referenced across
10255 a section boundary - possibly due to an implicit dump. */
10256 as_bad_where (fixp->fx_file, fixp->fx_line,
10257 _("literal referenced across section boundary (Implicit dump?)"));
10258 return NULL;
10259
10260 #ifdef OBJ_ELF
10261 case BFD_RELOC_ARM_GOT32:
10262 case BFD_RELOC_ARM_GOTOFF:
10263 case BFD_RELOC_ARM_PLT32:
10264 code = fixp->fx_r_type;
10265 break;
10266 #endif
10267
10268 case BFD_RELOC_ARM_IMMEDIATE:
10269 as_bad_where (fixp->fx_file, fixp->fx_line,
10270 _("internal relocation (type %d) not fixed up (IMMEDIATE)"),
10271 fixp->fx_r_type);
10272 return NULL;
10273
10274 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
10275 as_bad_where (fixp->fx_file, fixp->fx_line,
10276 _("ADRL used for a symbol not defined in the same file"));
10277 return NULL;
10278
10279 case BFD_RELOC_ARM_OFFSET_IMM:
10280 as_bad_where (fixp->fx_file, fixp->fx_line,
10281 _("internal_relocation (type %d) not fixed up (OFFSET_IMM)"),
10282 fixp->fx_r_type);
10283 return NULL;
10284
10285 default:
10286 {
10287 char * type;
10288
10289 switch (fixp->fx_r_type)
10290 {
10291 case BFD_RELOC_ARM_IMMEDIATE: type = "IMMEDIATE"; break;
10292 case BFD_RELOC_ARM_OFFSET_IMM: type = "OFFSET_IMM"; break;
10293 case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
10294 case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
10295 case BFD_RELOC_ARM_SWI: type = "SWI"; break;
10296 case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
10297 case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
10298 case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
10299 case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
10300 case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
10301 case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
10302 default: type = _("<unknown>"); break;
10303 }
10304 as_bad_where (fixp->fx_file, fixp->fx_line,
10305 _("cannot represent %s relocation in this object file format"),
10306 type);
10307 return NULL;
10308 }
10309 }
10310
10311 #ifdef OBJ_ELF
10312 if (code == BFD_RELOC_32_PCREL
10313 && GOT_symbol
10314 && fixp->fx_addsy == GOT_symbol)
10315 {
10316 code = BFD_RELOC_ARM_GOTPC;
10317 reloc->addend = fixp->fx_offset = reloc->address;
10318 }
10319 #endif
10320
10321 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
10322
10323 if (reloc->howto == NULL)
10324 {
10325 as_bad_where (fixp->fx_file, fixp->fx_line,
10326 _("cannot represent %s relocation in this object file format"),
10327 bfd_get_reloc_code_name (code));
10328 return NULL;
10329 }
10330
10331 /* HACK: Since arm ELF uses Rel instead of Rela, encode the
10332 vtable entry to be used in the relocation's section offset. */
10333 if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
10334 reloc->address = fixp->fx_offset;
10335
10336 return reloc;
10337 }
10338
10339 int
10340 md_estimate_size_before_relax (fragP, segtype)
10341 fragS * fragP ATTRIBUTE_UNUSED;
10342 segT segtype ATTRIBUTE_UNUSED;
10343 {
10344 as_fatal (_("md_estimate_size_before_relax\n"));
10345 return 1;
10346 }
10347
10348 static void
10349 output_inst (str)
10350 const char *str;
10351 {
10352 char * to = NULL;
10353
10354 if (inst.error)
10355 {
10356 as_bad ("%s -- `%s'", inst.error, str);
10357 return;
10358 }
10359
10360 to = frag_more (inst.size);
10361
10362 if (thumb_mode && (inst.size > THUMB_SIZE))
10363 {
10364 assert (inst.size == (2 * THUMB_SIZE));
10365 md_number_to_chars (to, inst.instruction >> 16, THUMB_SIZE);
10366 md_number_to_chars (to + THUMB_SIZE, inst.instruction, THUMB_SIZE);
10367 }
10368 else if (inst.size > INSN_SIZE)
10369 {
10370 assert (inst.size == (2 * INSN_SIZE));
10371 md_number_to_chars (to, inst.instruction, INSN_SIZE);
10372 md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
10373 }
10374 else
10375 md_number_to_chars (to, inst.instruction, inst.size);
10376
10377 if (inst.reloc.type != BFD_RELOC_NONE)
10378 fix_new_arm (frag_now, to - frag_now->fr_literal,
10379 inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
10380 inst.reloc.type);
10381
10382 #ifdef OBJ_ELF
10383 dwarf2_emit_insn (inst.size);
10384 #endif
10385 }
10386
10387 void
10388 md_assemble (str)
10389 char * str;
10390 {
10391 char c;
10392 char *p;
10393 char *start;
10394
10395 /* Align the instruction.
10396 This may not be the right thing to do but ... */
10397 #if 0
10398 arm_align (2, 0);
10399 #endif
10400 listing_prev_line (); /* Defined in listing.h. */
10401
10402 /* Align the previous label if needed. */
10403 if (last_label_seen != NULL)
10404 {
10405 symbol_set_frag (last_label_seen, frag_now);
10406 S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
10407 S_SET_SEGMENT (last_label_seen, now_seg);
10408 }
10409
10410 memset (&inst, '\0', sizeof (inst));
10411 inst.reloc.type = BFD_RELOC_NONE;
10412
10413 skip_whitespace (str);
10414
10415 /* Scan up to the end of the op-code, which must end in white space or
10416 end of string. */
10417 for (start = p = str; *p != '\0'; p++)
10418 if (*p == ' ')
10419 break;
10420
10421 if (p == str)
10422 {
10423 as_bad (_("no operator -- statement `%s'\n"), str);
10424 return;
10425 }
10426
10427 if (thumb_mode)
10428 {
10429 const struct thumb_opcode * opcode;
10430
10431 c = *p;
10432 *p = '\0';
10433 opcode = (const struct thumb_opcode *) hash_find (arm_tops_hsh, str);
10434 *p = c;
10435
10436 if (opcode)
10437 {
10438 /* Check that this instruction is supported for this CPU. */
10439 if (thumb_mode == 1 && (opcode->variant & cpu_variant) == 0)
10440 {
10441 as_bad (_("selected processor does not support `%s'"), str);
10442 return;
10443 }
10444
10445 inst.instruction = opcode->value;
10446 inst.size = opcode->size;
10447 (*opcode->parms) (p);
10448 output_inst (str);
10449 return;
10450 }
10451 }
10452 else
10453 {
10454 const struct asm_opcode * opcode;
10455
10456 c = *p;
10457 *p = '\0';
10458 opcode = (const struct asm_opcode *) hash_find (arm_ops_hsh, str);
10459 *p = c;
10460
10461 if (opcode)
10462 {
10463 /* Check that this instruction is supported for this CPU. */
10464 if ((opcode->variant & cpu_variant) == 0)
10465 {
10466 as_bad (_("selected processor does not support `%s'"), str);
10467 return;
10468 }
10469
10470 inst.instruction = opcode->value;
10471 inst.size = INSN_SIZE;
10472 (*opcode->parms) (p);
10473 output_inst (str);
10474 return;
10475 }
10476 }
10477
10478 /* It wasn't an instruction, but it might be a register alias of the form
10479 alias .req reg. */
10480 if (create_register_alias (str, p))
10481 return;
10482
10483 as_bad (_("bad instruction `%s'"), start);
10484 }
10485
10486 /* md_parse_option
10487 Invocation line includes a switch not recognized by the base assembler.
10488 See if it's a processor-specific option.
10489
10490 This routine is somewhat complicated by the need for backwards
10491 compatibility (since older releases of gcc can't be changed).
10492 The new options try to make the interface as compatible as
10493 possible with GCC.
10494
10495 New options (supported) are:
10496
10497 -mcpu=<cpu name> Assemble for selected processor
10498 -march=<architecture name> Assemble for selected architecture
10499 -mfpu=<fpu architecture> Assemble for selected FPU.
10500 -EB/-mbig-endian Big-endian
10501 -EL/-mlittle-endian Little-endian
10502 -k Generate PIC code
10503 -mthumb Start in Thumb mode
10504 -mthumb-interwork Code supports ARM/Thumb interworking
10505
10506 For now we will also provide support for
10507
10508 -mapcs-32 32-bit Program counter
10509 -mapcs-26 26-bit Program counter
10510 -macps-float Floats passed in FP registers
10511 -mapcs-reentrant Reentrant code
10512 -matpcs
10513 (sometime these will probably be replaced with -mapcs=<list of options>
10514 and -matpcs=<list of options>)
10515
10516 The remaining options are only supported for back-wards compatibility.
10517 Cpu variants, the arm part is optional:
10518 -m[arm]1 Currently not supported.
10519 -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
10520 -m[arm]3 Arm 3 processor
10521 -m[arm]6[xx], Arm 6 processors
10522 -m[arm]7[xx][t][[d]m] Arm 7 processors
10523 -m[arm]8[10] Arm 8 processors
10524 -m[arm]9[20][tdmi] Arm 9 processors
10525 -mstrongarm[110[0]] StrongARM processors
10526 -mxscale XScale processors
10527 -m[arm]v[2345[t[e]]] Arm architectures
10528 -mall All (except the ARM1)
10529 FP variants:
10530 -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
10531 -mfpe-old (No float load/store multiples)
10532 -mvfpxd VFP Single precision
10533 -mvfp All VFP
10534 -mno-fpu Disable all floating point instructions
10535
10536 The following CPU names are recognized:
10537 arm1, arm2, arm250, arm3, arm6, arm600, arm610, arm620,
10538 arm7, arm7m, arm7d, arm7dm, arm7di, arm7dmi, arm70, arm700,
10539 arm700i, arm710 arm710t, arm720, arm720t, arm740t, arm710c,
10540 arm7100, arm7500, arm7500fe, arm7tdmi, arm8, arm810, arm9,
10541 arm920, arm920t, arm940t, arm946, arm966, arm9tdmi, arm9e,
10542 arm10t arm10e, arm1020t, arm1020e, arm10200e,
10543 strongarm, strongarm110, strongarm1100, strongarm1110, xscale.
10544
10545 */
10546
10547 CONST char * md_shortopts = "m:k";
10548
10549 #ifdef ARM_BI_ENDIAN
10550 #define OPTION_EB (OPTION_MD_BASE + 0)
10551 #define OPTION_EL (OPTION_MD_BASE + 1)
10552 #else
10553 #if TARGET_BYTES_BIG_ENDIAN
10554 #define OPTION_EB (OPTION_MD_BASE + 0)
10555 #else
10556 #define OPTION_EL (OPTION_MD_BASE + 1)
10557 #endif
10558 #endif
10559
10560 struct option md_longopts[] =
10561 {
10562 #ifdef OPTION_EB
10563 {"EB", no_argument, NULL, OPTION_EB},
10564 #endif
10565 #ifdef OPTION_EL
10566 {"EL", no_argument, NULL, OPTION_EL},
10567 #endif
10568 {NULL, no_argument, NULL, 0}
10569 };
10570
10571 size_t md_longopts_size = sizeof (md_longopts);
10572
10573 struct arm_option_table
10574 {
10575 char *option; /* Option name to match. */
10576 char *help; /* Help information. */
10577 int *var; /* Variable to change. */
10578 int value; /* What to change it to. */
10579 char *deprecated; /* If non-null, print this message. */
10580 };
10581
10582 struct arm_option_table arm_opts[] =
10583 {
10584 {"k", N_("generate PIC code"), &pic_code, 1, NULL},
10585 {"mthumb", N_("assemble Thumb code"), &thumb_mode, 1, NULL},
10586 {"mthumb-interwork", N_("support ARM/Thumb interworking"),
10587 &support_interwork, 1, NULL},
10588 {"moabi", N_("use old ABI (ELF only)"), &target_oabi, 1, NULL},
10589 {"mapcs-32", N_("code uses 32-bit program counter"), &uses_apcs_26, 0, NULL},
10590 {"mapcs-26", N_("code uses 26-bit program counter"), &uses_apcs_26, 1, NULL},
10591 {"mapcs-float", N_("floating point args are in fp regs"), &uses_apcs_float,
10592 1, NULL},
10593 {"mapcs-reentrant", N_("re-entrant code"), &pic_code, 1, NULL},
10594 {"matpcs", N_("code is ATPCS conformant"), &atpcs, 1, NULL},
10595 {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL},
10596 {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 1,
10597 NULL},
10598
10599 /* These are recognized by the assembler, but have no affect on code. */
10600 {"mapcs-frame", N_("use frame pointer"), NULL, 0, NULL},
10601 {"mapcs-stack-check", N_("use stack size checking"), NULL, 0, NULL},
10602
10603 /* DON'T add any new processors to this list -- we want the whole list
10604 to go away... Add them to the processors table instead. */
10605 {"marm1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
10606 {"m1", NULL, &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
10607 {"marm2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
10608 {"m2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
10609 {"marm250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
10610 {"m250", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
10611 {"marm3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
10612 {"m3", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
10613 {"marm6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
10614 {"m6", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
10615 {"marm600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
10616 {"m600", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
10617 {"marm610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
10618 {"m610", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
10619 {"marm620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
10620 {"m620", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
10621 {"marm7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
10622 {"m7", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
10623 {"marm70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
10624 {"m70", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
10625 {"marm700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
10626 {"m700", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
10627 {"marm700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
10628 {"m700i", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
10629 {"marm710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
10630 {"m710", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
10631 {"marm710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
10632 {"m710c", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
10633 {"marm720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
10634 {"m720", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
10635 {"marm7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
10636 {"m7d", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
10637 {"marm7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
10638 {"m7di", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
10639 {"marm7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
10640 {"m7m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
10641 {"marm7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
10642 {"m7dm", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
10643 {"marm7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
10644 {"m7dmi", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
10645 {"marm7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
10646 {"m7100", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
10647 {"marm7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
10648 {"m7500", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
10649 {"marm7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
10650 {"m7500fe", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
10651 {"marm7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
10652 {"m7t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
10653 {"marm7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
10654 {"m7tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
10655 {"marm710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
10656 {"m710t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
10657 {"marm720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
10658 {"m720t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
10659 {"marm740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
10660 {"m740t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
10661 {"marm8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
10662 {"m8", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
10663 {"marm810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
10664 {"m810", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
10665 {"marm9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
10666 {"m9", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
10667 {"marm9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
10668 {"m9tdmi", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
10669 {"marm920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
10670 {"m920", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
10671 {"marm940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
10672 {"m940", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
10673 {"mstrongarm", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=strongarm")},
10674 {"mstrongarm110", NULL, &legacy_cpu, ARM_ARCH_V4,
10675 N_("use -mcpu=strongarm110")},
10676 {"mstrongarm1100", NULL, &legacy_cpu, ARM_ARCH_V4,
10677 N_("use -mcpu=strongarm1100")},
10678 {"mstrongarm1110", NULL, &legacy_cpu, ARM_ARCH_V4,
10679 N_("use -mcpu=strongarm1110")},
10680 {"mxscale", NULL, &legacy_cpu, ARM_ARCH_XSCALE, N_("use -mcpu=xscale")},
10681 {"mall", NULL, &legacy_cpu, ARM_ANY, N_("use -mcpu=all")},
10682
10683 /* Architecture variants -- don't add any more to this list either. */
10684 {"mv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
10685 {"marmv2", NULL, &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
10686 {"mv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
10687 {"marmv2a", NULL, &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
10688 {"mv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
10689 {"marmv3", NULL, &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
10690 {"mv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
10691 {"marmv3m", NULL, &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
10692 {"mv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
10693 {"marmv4", NULL, &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
10694 {"mv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
10695 {"marmv4t", NULL, &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
10696 {"mv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
10697 {"marmv5", NULL, &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
10698 {"mv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
10699 {"marmv5t", NULL, &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
10700 {"mv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
10701 {"marmv5e", NULL, &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
10702
10703 /* Floating point variants -- don't add any more to this list either. */
10704 {"mfpe-old", NULL, &legacy_fpu, FPU_ARCH_FPE, N_("use -mfpu=fpe")},
10705 {"mfpa10", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa10")},
10706 {"mfpa11", NULL, &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa11")},
10707 {"mno-fpu", NULL, &legacy_fpu, 0,
10708 N_("use either -mfpu=softfpa or -mfpu=softvfp")},
10709
10710 {NULL, NULL, NULL, 0, NULL}
10711 };
10712
10713 struct arm_cpu_option_table
10714 {
10715 char *name;
10716 int value;
10717 /* For some CPUs we assume an FPU unless the user explicitly sets
10718 -mfpu=... */
10719 int default_fpu;
10720 };
10721
10722 /* This list should, at a minimum, contain all the cpu names
10723 recognized by GCC. */
10724 static struct arm_cpu_option_table arm_cpus[] =
10725 {
10726 {"all", ARM_ANY, FPU_ARCH_FPA},
10727 {"arm1", ARM_ARCH_V1, FPU_ARCH_FPA},
10728 {"arm2", ARM_ARCH_V2, FPU_ARCH_FPA},
10729 {"arm250", ARM_ARCH_V2S, FPU_ARCH_FPA},
10730 {"arm3", ARM_ARCH_V2S, FPU_ARCH_FPA},
10731 {"arm6", ARM_ARCH_V3, FPU_ARCH_FPA},
10732 {"arm60", ARM_ARCH_V3, FPU_ARCH_FPA},
10733 {"arm600", ARM_ARCH_V3, FPU_ARCH_FPA},
10734 {"arm610", ARM_ARCH_V3, FPU_ARCH_FPA},
10735 {"arm620", ARM_ARCH_V3, FPU_ARCH_FPA},
10736 {"arm7", ARM_ARCH_V3, FPU_ARCH_FPA},
10737 {"arm7m", ARM_ARCH_V3M, FPU_ARCH_FPA},
10738 {"arm7d", ARM_ARCH_V3, FPU_ARCH_FPA},
10739 {"arm7dm", ARM_ARCH_V3M, FPU_ARCH_FPA},
10740 {"arm7di", ARM_ARCH_V3, FPU_ARCH_FPA},
10741 {"arm7dmi", ARM_ARCH_V3M, FPU_ARCH_FPA},
10742 {"arm70", ARM_ARCH_V3, FPU_ARCH_FPA},
10743 {"arm700", ARM_ARCH_V3, FPU_ARCH_FPA},
10744 {"arm700i", ARM_ARCH_V3, FPU_ARCH_FPA},
10745 {"arm710", ARM_ARCH_V3, FPU_ARCH_FPA},
10746 {"arm710t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10747 {"arm720", ARM_ARCH_V3, FPU_ARCH_FPA},
10748 {"arm720t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10749 {"arm740t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10750 {"arm710c", ARM_ARCH_V3, FPU_ARCH_FPA},
10751 {"arm7100", ARM_ARCH_V3, FPU_ARCH_FPA},
10752 {"arm7500", ARM_ARCH_V3, FPU_ARCH_FPA},
10753 {"arm7500fe", ARM_ARCH_V3, FPU_ARCH_FPA},
10754 {"arm7t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10755 {"arm7tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
10756 {"arm8", ARM_ARCH_V4, FPU_ARCH_FPA},
10757 {"arm810", ARM_ARCH_V4, FPU_ARCH_FPA},
10758 {"strongarm", ARM_ARCH_V4, FPU_ARCH_FPA},
10759 {"strongarm1", ARM_ARCH_V4, FPU_ARCH_FPA},
10760 {"strongarm110", ARM_ARCH_V4, FPU_ARCH_FPA},
10761 {"strongarm1100", ARM_ARCH_V4, FPU_ARCH_FPA},
10762 {"strongarm1110", ARM_ARCH_V4, FPU_ARCH_FPA},
10763 {"arm9", ARM_ARCH_V4T, FPU_ARCH_FPA},
10764 {"arm920", ARM_ARCH_V4T, FPU_ARCH_FPA},
10765 {"arm920t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10766 {"arm922t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10767 {"arm940t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10768 {"arm9tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA},
10769 /* For V5 or later processors we default to using VFP; but the user
10770 should really set the FPU type explicitly. */
10771 {"arm9e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
10772 {"arm9e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10773 {"arm926ej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
10774 {"arm946e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
10775 {"arm946e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10776 {"arm966e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2},
10777 {"arm966e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10778 {"arm10t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
10779 {"arm10e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10780 {"arm1020", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10781 {"arm1020t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
10782 {"arm1020e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
10783 /* ??? XSCALE is really an architecture. */
10784 {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
10785 {"i80200", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2},
10786 /* Maverick */
10787 {"ep9312", ARM_ARCH_V4T | ARM_CEXT_MAVERICK, FPU_NONE},
10788 {NULL, 0, 0}
10789 };
10790
10791 struct arm_arch_option_table
10792 {
10793 char *name;
10794 int value;
10795 int default_fpu;
10796 };
10797
10798 /* This list should, at a minimum, contain all the architecture names
10799 recognized by GCC. */
10800 static struct arm_arch_option_table arm_archs[] =
10801 {
10802 {"all", ARM_ANY, FPU_ARCH_FPA},
10803 {"armv1", ARM_ARCH_V1, FPU_ARCH_FPA},
10804 {"armv2", ARM_ARCH_V2, FPU_ARCH_FPA},
10805 {"armv2a", ARM_ARCH_V2S, FPU_ARCH_FPA},
10806 {"armv2s", ARM_ARCH_V2S, FPU_ARCH_FPA},
10807 {"armv3", ARM_ARCH_V3, FPU_ARCH_FPA},
10808 {"armv3m", ARM_ARCH_V3M, FPU_ARCH_FPA},
10809 {"armv4", ARM_ARCH_V4, FPU_ARCH_FPA},
10810 {"armv4xm", ARM_ARCH_V4xM, FPU_ARCH_FPA},
10811 {"armv4t", ARM_ARCH_V4T, FPU_ARCH_FPA},
10812 {"armv4txm", ARM_ARCH_V4TxM, FPU_ARCH_FPA},
10813 {"armv5", ARM_ARCH_V5, FPU_ARCH_VFP},
10814 {"armv5t", ARM_ARCH_V5T, FPU_ARCH_VFP},
10815 {"armv5txm", ARM_ARCH_V5TxM, FPU_ARCH_VFP},
10816 {"armv5te", ARM_ARCH_V5TE, FPU_ARCH_VFP},
10817 {"armv5texp", ARM_ARCH_V5TExP, FPU_ARCH_VFP},
10818 {"armv5tej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP},
10819 {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP},
10820 {NULL, 0, 0}
10821 };
10822
10823 /* ISA extensions in the co-processor space. */
10824 struct arm_arch_extension_table
10825 {
10826 char *name;
10827 int value;
10828 };
10829
10830 static struct arm_arch_extension_table arm_extensions[] =
10831 {
10832 {"maverick", ARM_CEXT_MAVERICK},
10833 {"xscale", ARM_CEXT_XSCALE},
10834 {NULL, 0}
10835 };
10836
10837 struct arm_fpu_option_table
10838 {
10839 char *name;
10840 int value;
10841 };
10842
10843 /* This list should, at a minimum, contain all the fpu names
10844 recognized by GCC. */
10845 static struct arm_fpu_option_table arm_fpus[] =
10846 {
10847 {"softfpa", FPU_NONE},
10848 {"fpe", FPU_ARCH_FPE},
10849 {"fpe2", FPU_ARCH_FPE},
10850 {"fpe3", FPU_ARCH_FPA}, /* Third release supports LFM/SFM. */
10851 {"fpa", FPU_ARCH_FPA},
10852 {"fpa10", FPU_ARCH_FPA},
10853 {"fpa11", FPU_ARCH_FPA},
10854 {"arm7500fe", FPU_ARCH_FPA},
10855 {"softvfp", FPU_ARCH_VFP},
10856 {"softvfp+vfp", FPU_ARCH_VFP_V2},
10857 {"vfp", FPU_ARCH_VFP_V2},
10858 {"vfp9", FPU_ARCH_VFP_V2},
10859 {"vfp10", FPU_ARCH_VFP_V2},
10860 {"vfp10-r0", FPU_ARCH_VFP_V1},
10861 {"vfpxd", FPU_ARCH_VFP_V1xD},
10862 {"arm1020t", FPU_ARCH_VFP_V1},
10863 {"arm1020e", FPU_ARCH_VFP_V2},
10864 {NULL, 0}
10865 };
10866
10867 struct arm_long_option_table
10868 {
10869 char *option; /* Substring to match. */
10870 char *help; /* Help information. */
10871 int (*func) PARAMS ((char *subopt)); /* Function to decode sub-option. */
10872 char *deprecated; /* If non-null, print this message. */
10873 };
10874
10875 static int
10876 arm_parse_extension (str, opt_p)
10877 char *str;
10878 int *opt_p;
10879 {
10880 while (str != NULL && *str != 0)
10881 {
10882 struct arm_arch_extension_table *opt;
10883 char *ext;
10884 int optlen;
10885
10886 if (*str != '+')
10887 {
10888 as_bad (_("invalid architectural extension"));
10889 return 0;
10890 }
10891
10892 str++;
10893 ext = strchr (str, '+');
10894
10895 if (ext != NULL)
10896 optlen = ext - str;
10897 else
10898 optlen = strlen (str);
10899
10900 if (optlen == 0)
10901 {
10902 as_bad (_("missing architectural extension"));
10903 return 0;
10904 }
10905
10906 for (opt = arm_extensions; opt->name != NULL; opt++)
10907 if (strncmp (opt->name, str, optlen) == 0)
10908 {
10909 *opt_p |= opt->value;
10910 break;
10911 }
10912
10913 if (opt->name == NULL)
10914 {
10915 as_bad (_("unknown architectural extnsion `%s'"), str);
10916 return 0;
10917 }
10918
10919 str = ext;
10920 };
10921
10922 return 1;
10923 }
10924
10925 static int
10926 arm_parse_cpu (str)
10927 char *str;
10928 {
10929 struct arm_cpu_option_table *opt;
10930 char *ext = strchr (str, '+');
10931 int optlen;
10932
10933 if (ext != NULL)
10934 optlen = ext - str;
10935 else
10936 optlen = strlen (str);
10937
10938 if (optlen == 0)
10939 {
10940 as_bad (_("missing cpu name `%s'"), str);
10941 return 0;
10942 }
10943
10944 for (opt = arm_cpus; opt->name != NULL; opt++)
10945 if (strncmp (opt->name, str, optlen) == 0)
10946 {
10947 mcpu_cpu_opt = opt->value;
10948 mcpu_fpu_opt = opt->default_fpu;
10949
10950 if (ext != NULL)
10951 return arm_parse_extension (ext, &mcpu_cpu_opt);
10952
10953 return 1;
10954 }
10955
10956 as_bad (_("unknown cpu `%s'"), str);
10957 return 0;
10958 }
10959
10960 static int
10961 arm_parse_arch (str)
10962 char *str;
10963 {
10964 struct arm_arch_option_table *opt;
10965 char *ext = strchr (str, '+');
10966 int optlen;
10967
10968 if (ext != NULL)
10969 optlen = ext - str;
10970 else
10971 optlen = strlen (str);
10972
10973 if (optlen == 0)
10974 {
10975 as_bad (_("missing architecture name `%s'"), str);
10976 return 0;
10977 }
10978
10979
10980 for (opt = arm_archs; opt->name != NULL; opt++)
10981 if (strcmp (opt->name, str) == 0)
10982 {
10983 march_cpu_opt = opt->value;
10984 march_fpu_opt = opt->default_fpu;
10985
10986 if (ext != NULL)
10987 return arm_parse_extension (ext, &march_cpu_opt);
10988
10989 return 1;
10990 }
10991
10992 as_bad (_("unknown architecture `%s'\n"), str);
10993 return 0;
10994 }
10995
10996 static int
10997 arm_parse_fpu (str)
10998 char *str;
10999 {
11000 struct arm_fpu_option_table *opt;
11001
11002 for (opt = arm_fpus; opt->name != NULL; opt++)
11003 if (strcmp (opt->name, str) == 0)
11004 {
11005 mfpu_opt = opt->value;
11006 return 1;
11007 }
11008
11009 as_bad (_("unknown floating point format `%s'\n"), str);
11010 return 0;
11011 }
11012
11013 struct arm_long_option_table arm_long_opts[] =
11014 {
11015 {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"),
11016 arm_parse_cpu, NULL},
11017 {"march=", N_("<arch name>\t assemble for architecture <arch name>"),
11018 arm_parse_arch, NULL},
11019 {"mfpu=", N_("<fpu name>\t assemble for FPU architecture <fpu name>"),
11020 arm_parse_fpu, NULL},
11021 {NULL, NULL, 0, NULL}
11022 };
11023
11024 int
11025 md_parse_option (c, arg)
11026 int c;
11027 char * arg;
11028 {
11029 struct arm_option_table *opt;
11030 struct arm_long_option_table *lopt;
11031
11032 switch (c)
11033 {
11034 #ifdef OPTION_EB
11035 case OPTION_EB:
11036 target_big_endian = 1;
11037 break;
11038 #endif
11039
11040 #ifdef OPTION_EL
11041 case OPTION_EL:
11042 target_big_endian = 0;
11043 break;
11044 #endif
11045
11046 case 'a':
11047 /* Listing option. Just ignore these, we don't support additional
11048 ones. */
11049 return 0;
11050
11051 default:
11052 for (opt = arm_opts; opt->option != NULL; opt++)
11053 {
11054 if (c == opt->option[0]
11055 && ((arg == NULL && opt->option[1] == 0)
11056 || strcmp (arg, opt->option + 1) == 0))
11057 {
11058 #if WARN_DEPRECATED
11059 /* If the option is deprecated, tell the user. */
11060 if (opt->deprecated != NULL)
11061 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
11062 arg ? arg : "", _(opt->deprecated));
11063 #endif
11064
11065 if (opt->var != NULL)
11066 *opt->var = opt->value;
11067
11068 return 1;
11069 }
11070 }
11071
11072 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
11073 {
11074 /* These options are expected to have an argument. */
11075 if (c == lopt->option[0]
11076 && arg != NULL
11077 && strncmp (arg, lopt->option + 1,
11078 strlen (lopt->option + 1)) == 0)
11079 {
11080 #if WARN_DEPRECATED
11081 /* If the option is deprecated, tell the user. */
11082 if (lopt->deprecated != NULL)
11083 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg,
11084 _(lopt->deprecated));
11085 #endif
11086
11087 /* Call the sup-option parser. */
11088 return (*lopt->func)(arg + strlen (lopt->option) - 1);
11089 }
11090 }
11091
11092 as_bad (_("unrecognized option `-%c%s'"), c, arg ? arg : "");
11093 return 0;
11094 }
11095
11096 return 1;
11097 }
11098
11099 void
11100 md_show_usage (fp)
11101 FILE * fp;
11102 {
11103 struct arm_option_table *opt;
11104 struct arm_long_option_table *lopt;
11105
11106 fprintf (fp, _(" ARM-specific assembler options:\n"));
11107
11108 for (opt = arm_opts; opt->option != NULL; opt++)
11109 if (opt->help != NULL)
11110 fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help));
11111
11112 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
11113 if (lopt->help != NULL)
11114 fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help));
11115
11116 #ifdef OPTION_EB
11117 fprintf (fp, _("\
11118 -EB assemble code for a big-endian cpu\n"));
11119 #endif
11120
11121 #ifdef OPTION_EL
11122 fprintf (fp, _("\
11123 -EL assemble code for a little-endian cpu\n"));
11124 #endif
11125 }
11126
11127 /* We need to be able to fix up arbitrary expressions in some statements.
11128 This is so that we can handle symbols that are an arbitrary distance from
11129 the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask),
11130 which returns part of an address in a form which will be valid for
11131 a data instruction. We do this by pushing the expression into a symbol
11132 in the expr_section, and creating a fix for that. */
11133
11134 static void
11135 fix_new_arm (frag, where, size, exp, pc_rel, reloc)
11136 fragS * frag;
11137 int where;
11138 short int size;
11139 expressionS * exp;
11140 int pc_rel;
11141 int reloc;
11142 {
11143 fixS * new_fix;
11144 arm_fix_data * arm_data;
11145
11146 switch (exp->X_op)
11147 {
11148 case O_constant:
11149 case O_symbol:
11150 case O_add:
11151 case O_subtract:
11152 new_fix = fix_new_exp (frag, where, size, exp, pc_rel, reloc);
11153 break;
11154
11155 default:
11156 new_fix = fix_new (frag, where, size, make_expr_symbol (exp), 0,
11157 pc_rel, reloc);
11158 break;
11159 }
11160
11161 /* Mark whether the fix is to a THUMB instruction, or an ARM
11162 instruction. */
11163 arm_data = (arm_fix_data *) obstack_alloc (& notes, sizeof (arm_fix_data));
11164 new_fix->tc_fix_data = (PTR) arm_data;
11165 arm_data->thumb_mode = thumb_mode;
11166
11167 return;
11168 }
11169
11170 /* This fix_new is called by cons via TC_CONS_FIX_NEW. */
11171
11172 void
11173 cons_fix_new_arm (frag, where, size, exp)
11174 fragS * frag;
11175 int where;
11176 int size;
11177 expressionS * exp;
11178 {
11179 bfd_reloc_code_real_type type;
11180 int pcrel = 0;
11181
11182 /* Pick a reloc.
11183 FIXME: @@ Should look at CPU word size. */
11184 switch (size)
11185 {
11186 case 1:
11187 type = BFD_RELOC_8;
11188 break;
11189 case 2:
11190 type = BFD_RELOC_16;
11191 break;
11192 case 4:
11193 default:
11194 type = BFD_RELOC_32;
11195 break;
11196 case 8:
11197 type = BFD_RELOC_64;
11198 break;
11199 }
11200
11201 fix_new_exp (frag, where, (int) size, exp, pcrel, type);
11202 }
11203
11204 /* A good place to do this, although this was probably not intended
11205 for this kind of use. We need to dump the literal pool before
11206 references are made to a null symbol pointer. */
11207
11208 void
11209 arm_cleanup ()
11210 {
11211 if (current_poolP == NULL)
11212 return;
11213
11214 /* Put it at the end of text section. */
11215 subseg_set (text_section, 0);
11216 s_ltorg (0);
11217 listing_prev_line ();
11218 }
11219
11220 void
11221 arm_start_line_hook ()
11222 {
11223 last_label_seen = NULL;
11224 }
11225
11226 void
11227 arm_frob_label (sym)
11228 symbolS * sym;
11229 {
11230 last_label_seen = sym;
11231
11232 ARM_SET_THUMB (sym, thumb_mode);
11233
11234 #if defined OBJ_COFF || defined OBJ_ELF
11235 ARM_SET_INTERWORK (sym, support_interwork);
11236 #endif
11237
11238 /* Note - do not allow local symbols (.Lxxx) to be labeled
11239 as Thumb functions. This is because these labels, whilst
11240 they exist inside Thumb code, are not the entry points for
11241 possible ARM->Thumb calls. Also, these labels can be used
11242 as part of a computed goto or switch statement. eg gcc
11243 can generate code that looks like this:
11244
11245 ldr r2, [pc, .Laaa]
11246 lsl r3, r3, #2
11247 ldr r2, [r3, r2]
11248 mov pc, r2
11249
11250 .Lbbb: .word .Lxxx
11251 .Lccc: .word .Lyyy
11252 ..etc...
11253 .Laaa: .word Lbbb
11254
11255 The first instruction loads the address of the jump table.
11256 The second instruction converts a table index into a byte offset.
11257 The third instruction gets the jump address out of the table.
11258 The fourth instruction performs the jump.
11259
11260 If the address stored at .Laaa is that of a symbol which has the
11261 Thumb_Func bit set, then the linker will arrange for this address
11262 to have the bottom bit set, which in turn would mean that the
11263 address computation performed by the third instruction would end
11264 up with the bottom bit set. Since the ARM is capable of unaligned
11265 word loads, the instruction would then load the incorrect address
11266 out of the jump table, and chaos would ensue. */
11267 if (label_is_thumb_function_name
11268 && (S_GET_NAME (sym)[0] != '.' || S_GET_NAME (sym)[1] != 'L')
11269 && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
11270 {
11271 /* When the address of a Thumb function is taken the bottom
11272 bit of that address should be set. This will allow
11273 interworking between Arm and Thumb functions to work
11274 correctly. */
11275
11276 THUMB_SET_FUNC (sym, 1);
11277
11278 label_is_thumb_function_name = false;
11279 }
11280 }
11281
11282 /* Adjust the symbol table. This marks Thumb symbols as distinct from
11283 ARM ones. */
11284
11285 void
11286 arm_adjust_symtab ()
11287 {
11288 #ifdef OBJ_COFF
11289 symbolS * sym;
11290
11291 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
11292 {
11293 if (ARM_IS_THUMB (sym))
11294 {
11295 if (THUMB_IS_FUNC (sym))
11296 {
11297 /* Mark the symbol as a Thumb function. */
11298 if ( S_GET_STORAGE_CLASS (sym) == C_STAT
11299 || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
11300 S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
11301
11302 else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
11303 S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
11304 else
11305 as_bad (_("%s: unexpected function type: %d"),
11306 S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
11307 }
11308 else switch (S_GET_STORAGE_CLASS (sym))
11309 {
11310 case C_EXT:
11311 S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
11312 break;
11313 case C_STAT:
11314 S_SET_STORAGE_CLASS (sym, C_THUMBSTAT);
11315 break;
11316 case C_LABEL:
11317 S_SET_STORAGE_CLASS (sym, C_THUMBLABEL);
11318 break;
11319 default:
11320 /* Do nothing. */
11321 break;
11322 }
11323 }
11324
11325 if (ARM_IS_INTERWORK (sym))
11326 coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
11327 }
11328 #endif
11329 #ifdef OBJ_ELF
11330 symbolS * sym;
11331 char bind;
11332
11333 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
11334 {
11335 if (ARM_IS_THUMB (sym))
11336 {
11337 elf_symbol_type * elf_sym;
11338
11339 elf_sym = elf_symbol (symbol_get_bfdsym (sym));
11340 bind = ELF_ST_BIND (elf_sym);
11341
11342 /* If it's a .thumb_func, declare it as so,
11343 otherwise tag label as .code 16. */
11344 if (THUMB_IS_FUNC (sym))
11345 elf_sym->internal_elf_sym.st_info =
11346 ELF_ST_INFO (bind, STT_ARM_TFUNC);
11347 else
11348 elf_sym->internal_elf_sym.st_info =
11349 ELF_ST_INFO (bind, STT_ARM_16BIT);
11350 }
11351 }
11352 #endif
11353 }
11354
11355 int
11356 arm_data_in_code ()
11357 {
11358 if (thumb_mode && ! strncmp (input_line_pointer + 1, "data:", 5))
11359 {
11360 *input_line_pointer = '/';
11361 input_line_pointer += 5;
11362 *input_line_pointer = 0;
11363 return 1;
11364 }
11365
11366 return 0;
11367 }
11368
11369 char *
11370 arm_canonicalize_symbol_name (name)
11371 char * name;
11372 {
11373 int len;
11374
11375 if (thumb_mode && (len = strlen (name)) > 5
11376 && streq (name + len - 5, "/data"))
11377 *(name + len - 5) = 0;
11378
11379 return name;
11380 }
11381
11382 boolean
11383 arm_validate_fix (fixP)
11384 fixS * fixP;
11385 {
11386 /* If the destination of the branch is a defined symbol which does not have
11387 the THUMB_FUNC attribute, then we must be calling a function which has
11388 the (interfacearm) attribute. We look for the Thumb entry point to that
11389 function and change the branch to refer to that function instead. */
11390 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
11391 && fixP->fx_addsy != NULL
11392 && S_IS_DEFINED (fixP->fx_addsy)
11393 && ! THUMB_IS_FUNC (fixP->fx_addsy))
11394 {
11395 fixP->fx_addsy = find_real_start (fixP->fx_addsy);
11396 return true;
11397 }
11398
11399 return false;
11400 }
11401
11402 #ifdef OBJ_COFF
11403 /* This is a little hack to help the gas/arm/adrl.s test. It prevents
11404 local labels from being added to the output symbol table when they
11405 are used with the ADRL pseudo op. The ADRL relocation should always
11406 be resolved before the binbary is emitted, so it is safe to say that
11407 it is adjustable. */
11408
11409 boolean
11410 arm_fix_adjustable (fixP)
11411 fixS * fixP;
11412 {
11413 if (fixP->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
11414 return 1;
11415 return 0;
11416 }
11417 #endif
11418 #ifdef OBJ_ELF
11419 /* Relocations against Thumb function names must be left unadjusted,
11420 so that the linker can use this information to correctly set the
11421 bottom bit of their addresses. The MIPS version of this function
11422 also prevents relocations that are mips-16 specific, but I do not
11423 know why it does this.
11424
11425 FIXME:
11426 There is one other problem that ought to be addressed here, but
11427 which currently is not: Taking the address of a label (rather
11428 than a function) and then later jumping to that address. Such
11429 addresses also ought to have their bottom bit set (assuming that
11430 they reside in Thumb code), but at the moment they will not. */
11431
11432 boolean
11433 arm_fix_adjustable (fixP)
11434 fixS * fixP;
11435 {
11436 if (fixP->fx_addsy == NULL)
11437 return 1;
11438
11439 /* Prevent all adjustments to global symbols. */
11440 if (S_IS_EXTERN (fixP->fx_addsy))
11441 return 0;
11442
11443 if (S_IS_WEAK (fixP->fx_addsy))
11444 return 0;
11445
11446 if (THUMB_IS_FUNC (fixP->fx_addsy)
11447 && fixP->fx_subsy == NULL)
11448 return 0;
11449
11450 /* We need the symbol name for the VTABLE entries. */
11451 if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
11452 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
11453 return 0;
11454
11455 return 1;
11456 }
11457
11458 const char *
11459 elf32_arm_target_format ()
11460 {
11461 if (target_big_endian)
11462 {
11463 if (target_oabi)
11464 return "elf32-bigarm-oabi";
11465 else
11466 return "elf32-bigarm";
11467 }
11468 else
11469 {
11470 if (target_oabi)
11471 return "elf32-littlearm-oabi";
11472 else
11473 return "elf32-littlearm";
11474 }
11475 }
11476
11477 void
11478 armelf_frob_symbol (symp, puntp)
11479 symbolS * symp;
11480 int * puntp;
11481 {
11482 elf_frob_symbol (symp, puntp);
11483 }
11484
11485 int
11486 arm_force_relocation (fixp)
11487 struct fix * fixp;
11488 {
11489 if ( fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT
11490 || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY
11491 || fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
11492 || fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BLX
11493 || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX
11494 || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23)
11495 return 1;
11496
11497 return 0;
11498 }
11499
11500 static bfd_reloc_code_real_type
11501 arm_parse_reloc ()
11502 {
11503 char id [16];
11504 char * ip;
11505 unsigned int i;
11506 static struct
11507 {
11508 char * str;
11509 int len;
11510 bfd_reloc_code_real_type reloc;
11511 }
11512 reloc_map[] =
11513 {
11514 #define MAP(str,reloc) { str, sizeof (str) - 1, reloc }
11515 MAP ("(got)", BFD_RELOC_ARM_GOT32),
11516 MAP ("(gotoff)", BFD_RELOC_ARM_GOTOFF),
11517 /* ScottB: Jan 30, 1998 - Added support for parsing "var(PLT)"
11518 branch instructions generated by GCC for PLT relocs. */
11519 MAP ("(plt)", BFD_RELOC_ARM_PLT32),
11520 { NULL, 0, BFD_RELOC_UNUSED }
11521 #undef MAP
11522 };
11523
11524 for (i = 0, ip = input_line_pointer;
11525 i < sizeof (id) && (ISALNUM (*ip) || ISPUNCT (*ip));
11526 i++, ip++)
11527 id[i] = TOLOWER (*ip);
11528
11529 for (i = 0; reloc_map[i].str; i++)
11530 if (strncmp (id, reloc_map[i].str, reloc_map[i].len) == 0)
11531 break;
11532
11533 input_line_pointer += reloc_map[i].len;
11534
11535 return reloc_map[i].reloc;
11536 }
11537
11538 static void
11539 s_arm_elf_cons (nbytes)
11540 int nbytes;
11541 {
11542 expressionS exp;
11543
11544 #ifdef md_flush_pending_output
11545 md_flush_pending_output ();
11546 #endif
11547
11548 if (is_it_end_of_statement ())
11549 {
11550 demand_empty_rest_of_line ();
11551 return;
11552 }
11553
11554 #ifdef md_cons_align
11555 md_cons_align (nbytes);
11556 #endif
11557
11558 do
11559 {
11560 bfd_reloc_code_real_type reloc;
11561
11562 expression (& exp);
11563
11564 if (exp.X_op == O_symbol
11565 && * input_line_pointer == '('
11566 && (reloc = arm_parse_reloc ()) != BFD_RELOC_UNUSED)
11567 {
11568 reloc_howto_type *howto = bfd_reloc_type_lookup (stdoutput, reloc);
11569 int size = bfd_get_reloc_size (howto);
11570
11571 if (size > nbytes)
11572 as_bad ("%s relocations do not fit in %d bytes",
11573 howto->name, nbytes);
11574 else
11575 {
11576 register char *p = frag_more ((int) nbytes);
11577 int offset = nbytes - size;
11578
11579 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
11580 &exp, 0, reloc);
11581 }
11582 }
11583 else
11584 emit_expr (&exp, (unsigned int) nbytes);
11585 }
11586 while (*input_line_pointer++ == ',');
11587
11588 /* Put terminator back into stream. */
11589 input_line_pointer --;
11590 demand_empty_rest_of_line ();
11591 }
11592
11593 #endif /* OBJ_ELF */
11594
11595 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
11596 of an rs_align_code fragment. */
11597
11598 void
11599 arm_handle_align (fragP)
11600 fragS *fragP;
11601 {
11602 static char const arm_noop[4] = { 0x00, 0x00, 0xa0, 0xe1 };
11603 static char const thumb_noop[2] = { 0xc0, 0x46 };
11604 static char const arm_bigend_noop[4] = { 0xe1, 0xa0, 0x00, 0x00 };
11605 static char const thumb_bigend_noop[2] = { 0x46, 0xc0 };
11606
11607 int bytes, fix, noop_size;
11608 char * p;
11609 const char * noop;
11610
11611 if (fragP->fr_type != rs_align_code)
11612 return;
11613
11614 bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
11615 p = fragP->fr_literal + fragP->fr_fix;
11616 fix = 0;
11617
11618 if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
11619 bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
11620
11621 if (fragP->tc_frag_data)
11622 {
11623 if (target_big_endian)
11624 noop = thumb_bigend_noop;
11625 else
11626 noop = thumb_noop;
11627 noop_size = sizeof (thumb_noop);
11628 }
11629 else
11630 {
11631 if (target_big_endian)
11632 noop = arm_bigend_noop;
11633 else
11634 noop = arm_noop;
11635 noop_size = sizeof (arm_noop);
11636 }
11637
11638 if (bytes & (noop_size - 1))
11639 {
11640 fix = bytes & (noop_size - 1);
11641 memset (p, 0, fix);
11642 p += fix;
11643 bytes -= fix;
11644 }
11645
11646 while (bytes >= noop_size)
11647 {
11648 memcpy (p, noop, noop_size);
11649 p += noop_size;
11650 bytes -= noop_size;
11651 fix += noop_size;
11652 }
11653
11654 fragP->fr_fix += fix;
11655 fragP->fr_var = noop_size;
11656 }
11657
11658 /* Called from md_do_align. Used to create an alignment
11659 frag in a code section. */
11660
11661 void
11662 arm_frag_align_code (n, max)
11663 int n;
11664 int max;
11665 {
11666 char * p;
11667
11668 /* We assume that there will never be a requirment
11669 to support alignments greater than 32 bytes. */
11670 if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
11671 as_fatal (_("alignments greater than 32 bytes not supported in .text sections."));
11672
11673 p = frag_var (rs_align_code,
11674 MAX_MEM_FOR_RS_ALIGN_CODE,
11675 1,
11676 (relax_substateT) max,
11677 (symbolS *) NULL,
11678 (offsetT) n,
11679 (char *) NULL);
11680 *p = 0;
11681
11682 }
11683
11684 /* Perform target specific initialisation of a frag. */
11685
11686 void
11687 arm_init_frag (fragP)
11688 fragS *fragP;
11689 {
11690 /* Record whether this frag is in an ARM or a THUMB area. */
11691 fragP->tc_frag_data = thumb_mode;
11692 }
GDB Binutils - Deliverables
This page took 0.265191 seconds and 5 git commands to generate.