Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-m68k.c -- Assemble for the m68k family |
f7e42eb4 | 2 | Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
266abb8f | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "as.h" |
3882b010 | 23 | #include "safe-ctype.h" |
252b5132 RH |
24 | #include "obstack.h" |
25 | #include "subsegs.h" | |
f27a3839 | 26 | #include "dwarf2dbg.h" |
c04898f8 | 27 | #include "dw2gencfi.h" |
252b5132 RH |
28 | |
29 | #include "opcode/m68k.h" | |
30 | #include "m68k-parse.h" | |
31 | ||
0d96863f CM |
32 | #if defined (OBJ_ELF) |
33 | #include "elf/m68k.h" | |
34 | #endif | |
35 | ||
31302357 AS |
36 | #ifdef M68KCOFF |
37 | #include "obj-coff.h" | |
38 | #endif | |
39 | ||
252b5132 RH |
40 | /* This string holds the chars that always start a comment. If the |
41 | pre-processor is disabled, these aren't very useful. The macro | |
42 | tc_comment_chars points to this. We use this, rather than the | |
43 | usual comment_chars, so that the --bitwise-or option will work. */ | |
44 | #if defined (TE_SVR4) || defined (TE_DELTA) | |
45 | const char *m68k_comment_chars = "|#"; | |
46 | #else | |
47 | const char *m68k_comment_chars = "|"; | |
48 | #endif | |
49 | ||
50 | /* This array holds the chars that only start a comment at the beginning of | |
51 | a line. If the line seems to have the form '# 123 filename' | |
52 | .line and .file directives will appear in the pre-processed output */ | |
53 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
54 | first line of the input file. This is because the compiler outputs | |
92774660 KH |
55 | #NO_APP at the beginning of its output. */ |
56 | /* Also note that comments like this one will always work. */ | |
252b5132 RH |
57 | const char line_comment_chars[] = "#*"; |
58 | ||
63a0b638 | 59 | const char line_separator_chars[] = ";"; |
252b5132 | 60 | |
36759679 | 61 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 62 | const char EXP_CHARS[] = "eE"; |
252b5132 RH |
63 | |
64 | /* Chars that mean this number is a floating point constant, as | |
65 | in "0f12.456" or "0d1.2345e12". */ | |
66 | ||
5a38dc70 | 67 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
252b5132 RH |
68 | |
69 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
70 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
71 | but nothing is ideal around here. */ | |
72 | ||
252b5132 RH |
73 | /* Are we trying to generate PIC code? If so, absolute references |
74 | ought to be made into linkage table references or pc-relative | |
92774660 | 75 | references. Not implemented. For ELF there are other means |
252b5132 RH |
76 | to denote pic relocations. */ |
77 | int flag_want_pic; | |
78 | ||
36759679 NC |
79 | static int flag_short_refs; /* -l option. */ |
80 | static int flag_long_jumps; /* -S option. */ | |
28e7409f | 81 | static int flag_keep_pcrel; /* --pcrel option. */ |
252b5132 RH |
82 | |
83 | #ifdef REGISTER_PREFIX_OPTIONAL | |
84 | int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
85 | #else | |
86 | int flag_reg_prefix_optional; | |
87 | #endif | |
88 | ||
89 | /* Whether --register-prefix-optional was used on the command line. */ | |
90 | static int reg_prefix_optional_seen; | |
91 | ||
92 | /* The floating point coprocessor to use by default. */ | |
93 | static enum m68k_register m68k_float_copnum = COP1; | |
94 | ||
95 | /* If this is non-zero, then references to number(%pc) will be taken | |
96 | to refer to number, rather than to %pc + number. */ | |
97 | static int m68k_abspcadd; | |
98 | ||
99 | /* If this is non-zero, then the quick forms of the move, add, and sub | |
100 | instructions are used when possible. */ | |
101 | static int m68k_quick = 1; | |
102 | ||
103 | /* If this is non-zero, then if the size is not specified for a base | |
104 | or outer displacement, the assembler assumes that the size should | |
105 | be 32 bits. */ | |
106 | static int m68k_rel32 = 1; | |
107 | ||
108 | /* This is non-zero if m68k_rel32 was set from the command line. */ | |
109 | static int m68k_rel32_from_cmdline; | |
110 | ||
111 | /* The default width to use for an index register when using a base | |
112 | displacement. */ | |
113 | static enum m68k_size m68k_index_width_default = SIZE_LONG; | |
114 | ||
115 | /* We want to warn if any text labels are misaligned. In order to get | |
116 | the right line number, we need to record the line number for each | |
117 | label. */ | |
252b5132 RH |
118 | struct label_line |
119 | { | |
120 | struct label_line *next; | |
121 | symbolS *label; | |
122 | char *file; | |
123 | unsigned int line; | |
124 | int text; | |
125 | }; | |
126 | ||
127 | /* The list of labels. */ | |
128 | ||
129 | static struct label_line *labels; | |
130 | ||
131 | /* The current label. */ | |
132 | ||
133 | static struct label_line *current_label; | |
134 | ||
60fed2d3 NC |
135 | /* Pointer to list holding the opcodes sorted by name. */ |
136 | static struct m68k_opcode const ** m68k_sorted_opcodes; | |
137 | ||
36759679 NC |
138 | /* Its an arbitrary name: This means I don't approve of it. |
139 | See flames below. */ | |
252b5132 RH |
140 | static struct obstack robyn; |
141 | ||
252b5132 RH |
142 | struct m68k_incant |
143 | { | |
144 | const char *m_operands; | |
145 | unsigned long m_opcode; | |
146 | short m_opnum; | |
147 | short m_codenum; | |
148 | int m_arch; | |
149 | struct m68k_incant *m_next; | |
150 | }; | |
151 | ||
152 | #define getone(x) ((((x)->m_opcode)>>16)&0xffff) | |
153 | #define gettwo(x) (((x)->m_opcode)&0xffff) | |
154 | ||
2da12c60 NS |
155 | static const enum m68k_register m68000_ctrl[] = { 0 }; |
156 | static const enum m68k_register m68010_ctrl[] = { | |
252b5132 RH |
157 | SFC, DFC, USP, VBR, |
158 | 0 | |
159 | }; | |
2da12c60 | 160 | static const enum m68k_register m68020_ctrl[] = { |
252b5132 RH |
161 | SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP, |
162 | 0 | |
163 | }; | |
2da12c60 | 164 | static const enum m68k_register m68040_ctrl[] = { |
252b5132 RH |
165 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, |
166 | USP, VBR, MSP, ISP, MMUSR, URP, SRP, | |
167 | 0 | |
168 | }; | |
2da12c60 | 169 | static const enum m68k_register m68060_ctrl[] = { |
252b5132 RH |
170 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, |
171 | USP, VBR, URP, SRP, PCR, | |
172 | 0 | |
173 | }; | |
2da12c60 | 174 | static const enum m68k_register mcf_ctrl[] = { |
3e602632 | 175 | CACR, TC, ACR0, ACR1, ACR2, ACR3, VBR, ROMBAR, |
252b5132 RH |
176 | RAMBAR0, RAMBAR1, MBAR, |
177 | 0 | |
178 | }; | |
2da12c60 | 179 | static const enum m68k_register mcf5208_ctrl[] = { |
266abb8f NS |
180 | CACR, ACR0, ACR1, VBR, RAMBAR1, |
181 | 0 | |
182 | }; | |
2da12c60 | 183 | static const enum m68k_register mcf5213_ctrl[] = { |
266abb8f NS |
184 | VBR, RAMBAR, FLASHBAR, |
185 | 0 | |
186 | }; | |
2da12c60 NS |
187 | static const enum m68k_register mcf5216_ctrl[] = { |
188 | VBR, CACR, ACR0, ACR1, FLASHBAR, RAMBAR, | |
266abb8f NS |
189 | 0 |
190 | }; | |
2da12c60 NS |
191 | static const enum m68k_register mcf5235_ctrl[] = { |
192 | VBR, CACR, ACR0, ACR1, RAMBAR, | |
e80e0390 NC |
193 | 0 |
194 | }; | |
2da12c60 NS |
195 | static const enum m68k_register mcf5249_ctrl[] = { |
196 | VBR, CACR, ACR0, ACR1, RAMBAR0, RAMBAR1, MBAR, MBAR2, | |
3e602632 NC |
197 | 0 |
198 | }; | |
2da12c60 NS |
199 | static const enum m68k_register mcf5250_ctrl[] = { |
200 | VBR, | |
201 | 0 | |
202 | }; | |
203 | static const enum m68k_register mcf5271_ctrl[] = { | |
204 | VBR, CACR, ACR0, ACR1, RAMBAR, | |
205 | 0 | |
206 | }; | |
207 | static const enum m68k_register mcf5272_ctrl[] = { | |
208 | VBR, CACR, ACR0, ACR1, ROMBAR, RAMBAR, MBAR, | |
209 | 0 | |
210 | }; | |
211 | static const enum m68k_register mcf5275_ctrl[] = { | |
212 | VBR, CACR, ACR0, ACR1, RAMBAR, | |
213 | 0 | |
214 | }; | |
215 | static const enum m68k_register mcf5282_ctrl[] = { | |
216 | VBR, CACR, ACR0, ACR1, FLASHBAR, RAMBAR, | |
217 | 0 | |
218 | }; | |
219 | static const enum m68k_register mcf5329_ctrl[] = { | |
220 | VBR, CACR, ACR0, ACR1, RAMBAR, | |
221 | 0 | |
222 | }; | |
223 | static const enum m68k_register mcf5373_ctrl[] = { | |
224 | VBR, CACR, ACR0, ACR1, RAMBAR, | |
225 | 0 | |
226 | }; | |
227 | static const enum m68k_register mcfv4e_ctrl[] = { | |
3e602632 NC |
228 | CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, VBR, PC, ROMBAR, |
229 | ROMBAR1, RAMBAR0, RAMBAR1, MPCR, EDRAMBAR, SECMBAR, MBAR, MBAR0, MBAR1, | |
230 | PCR1U0, PCR1L0, PCR1U1, PCR1L1, PCR2U0, PCR2L0, PCR2U1, PCR2L1, | |
231 | PCR3U0, PCR3L0, PCR3U1, PCR3L1, | |
232 | 0 | |
233 | }; | |
2da12c60 | 234 | #define cpu32_ctrl m68010_ctrl |
252b5132 RH |
235 | |
236 | static const enum m68k_register *control_regs; | |
237 | ||
36759679 | 238 | /* Internal form of a 68020 instruction. */ |
252b5132 RH |
239 | struct m68k_it |
240 | { | |
241 | const char *error; | |
36759679 | 242 | const char *args; /* List of opcode info. */ |
252b5132 RH |
243 | int numargs; |
244 | ||
36759679 | 245 | int numo; /* Number of shorts in opcode. */ |
252b5132 RH |
246 | short opcode[11]; |
247 | ||
248 | struct m68k_op operands[6]; | |
249 | ||
36759679 | 250 | int nexp; /* Number of exprs in use. */ |
252b5132 RH |
251 | struct m68k_exp exprs[4]; |
252 | ||
36759679 | 253 | int nfrag; /* Number of frags we have to produce. */ |
252b5132 RH |
254 | struct |
255 | { | |
36759679 | 256 | int fragoff; /* Where in the current opcode the frag ends. */ |
252b5132 RH |
257 | symbolS *fadd; |
258 | offsetT foff; | |
259 | int fragty; | |
260 | } | |
261 | fragb[4]; | |
262 | ||
36759679 | 263 | int nrel; /* Num of reloc strucs in use. */ |
252b5132 RH |
264 | struct |
265 | { | |
266 | int n; | |
267 | expressionS exp; | |
268 | char wid; | |
269 | char pcrel; | |
270 | /* In a pc relative address the difference between the address | |
271 | of the offset and the address that the offset is relative | |
272 | to. This depends on the addressing mode. Basically this | |
273 | is the value to put in the offset field to address the | |
274 | first byte of the offset, without regarding the special | |
275 | significance of some values (in the branch instruction, for | |
276 | example). */ | |
277 | int pcrel_fix; | |
278 | #ifdef OBJ_ELF | |
279 | /* Whether this expression needs special pic relocation, and if | |
280 | so, which. */ | |
281 | enum pic_relocation pic_reloc; | |
282 | #endif | |
283 | } | |
36759679 | 284 | reloc[5]; /* Five is enough??? */ |
252b5132 RH |
285 | }; |
286 | ||
6b6e92f4 | 287 | #define cpu_of_arch(x) ((x) & (m68000up | mcfisa_a)) |
252b5132 RH |
288 | #define float_of_arch(x) ((x) & mfloat) |
289 | #define mmu_of_arch(x) ((x) & mmmu) | |
6b6e92f4 NC |
290 | #define arch_coldfire_p(x) ((x) & mcfisa_a) |
291 | #define arch_coldfire_fpu(x) ((x) & cfloat) | |
252b5132 | 292 | |
36759679 | 293 | /* Macros for determining if cpu supports a specific addressing mode. */ |
6b6e92f4 | 294 | #define HAVE_LONG_BRANCH(x) ((x) & (m68020|m68030|m68040|m68060|cpu32|mcfisa_b)) |
252b5132 | 295 | |
36759679 | 296 | static struct m68k_it the_ins; /* The instruction being assembled. */ |
252b5132 RH |
297 | |
298 | #define op(ex) ((ex)->exp.X_op) | |
299 | #define adds(ex) ((ex)->exp.X_add_symbol) | |
300 | #define subs(ex) ((ex)->exp.X_op_symbol) | |
301 | #define offs(ex) ((ex)->exp.X_add_number) | |
302 | ||
36759679 | 303 | /* Macros for adding things to the m68k_it struct. */ |
31302357 | 304 | #define addword(w) (the_ins.opcode[the_ins.numo++] = (w)) |
252b5132 | 305 | |
36759679 NC |
306 | /* Like addword, but goes BEFORE general operands. */ |
307 | ||
252b5132 | 308 | static void |
31302357 | 309 | insop (int w, const struct m68k_incant *opcode) |
252b5132 RH |
310 | { |
311 | int z; | |
07726851 | 312 | for (z = the_ins.numo; z > opcode->m_codenum; --z) |
8a104df9 KH |
313 | the_ins.opcode[z] = the_ins.opcode[z - 1]; |
314 | for (z = 0; z < the_ins.nrel; z++) | |
315 | the_ins.reloc[z].n += 2; | |
252b5132 RH |
316 | for (z = 0; z < the_ins.nfrag; z++) |
317 | the_ins.fragb[z].fragoff++; | |
8a104df9 | 318 | the_ins.opcode[opcode->m_codenum] = w; |
252b5132 RH |
319 | the_ins.numo++; |
320 | } | |
321 | ||
322 | /* The numo+1 kludge is so we can hit the low order byte of the prev word. | |
323 | Blecch. */ | |
324 | static void | |
31302357 | 325 | add_fix (int width, struct m68k_exp *exp, int pc_rel, int pc_fix) |
252b5132 | 326 | { |
31302357 AS |
327 | the_ins.reloc[the_ins.nrel].n = (width == 'B' || width == '3' |
328 | ? the_ins.numo * 2 - 1 | |
329 | : (width == 'b' | |
330 | ? the_ins.numo * 2 + 1 | |
331 | : the_ins.numo * 2)); | |
252b5132 RH |
332 | the_ins.reloc[the_ins.nrel].exp = exp->exp; |
333 | the_ins.reloc[the_ins.nrel].wid = width; | |
334 | the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix; | |
335 | #ifdef OBJ_ELF | |
336 | the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc; | |
337 | #endif | |
338 | the_ins.reloc[the_ins.nrel++].pcrel = pc_rel; | |
339 | } | |
340 | ||
341 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
342 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
343 | is the subtype of the frag to be generated; its primary type is | |
344 | rs_machine_dependent. | |
345 | ||
346 | The TYPE parameter is also used by md_convert_frag_1 and | |
347 | md_estimate_size_before_relax. The appropriate type of fixup will | |
348 | be emitted by md_convert_frag_1. | |
349 | ||
350 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
351 | static void | |
31302357 | 352 | add_frag (symbolS *add, offsetT off, int type) |
252b5132 | 353 | { |
8a104df9 KH |
354 | the_ins.fragb[the_ins.nfrag].fragoff = the_ins.numo; |
355 | the_ins.fragb[the_ins.nfrag].fadd = add; | |
356 | the_ins.fragb[the_ins.nfrag].foff = off; | |
357 | the_ins.fragb[the_ins.nfrag++].fragty = type; | |
252b5132 RH |
358 | } |
359 | ||
360 | #define isvar(ex) \ | |
361 | (op (ex) != O_constant && op (ex) != O_big) | |
362 | ||
31302357 AS |
363 | static char *crack_operand (char *str, struct m68k_op *opP); |
364 | static int get_num (struct m68k_exp *exp, int ok); | |
365 | static int reverse_16_bits (int in); | |
366 | static int reverse_8_bits (int in); | |
367 | static void install_gen_operand (int mode, int val); | |
368 | static void install_operand (int mode, int val); | |
369 | static void s_bss (int); | |
370 | static void s_data1 (int); | |
371 | static void s_data2 (int); | |
372 | static void s_even (int); | |
373 | static void s_proc (int); | |
374 | static void s_chip (int); | |
375 | static void s_fopt (int); | |
376 | static void s_opt (int); | |
377 | static void s_reg (int); | |
378 | static void s_restore (int); | |
379 | static void s_save (int); | |
380 | static void s_mri_if (int); | |
381 | static void s_mri_else (int); | |
382 | static void s_mri_endi (int); | |
383 | static void s_mri_break (int); | |
384 | static void s_mri_next (int); | |
385 | static void s_mri_for (int); | |
386 | static void s_mri_endf (int); | |
387 | static void s_mri_repeat (int); | |
388 | static void s_mri_until (int); | |
389 | static void s_mri_while (int); | |
390 | static void s_mri_endw (int); | |
266abb8f NS |
391 | static void s_m68k_cpu (int); |
392 | static void s_m68k_arch (int); | |
393 | ||
394 | struct m68k_cpu | |
395 | { | |
396 | unsigned long arch; /* Architecture features. */ | |
2da12c60 | 397 | const enum m68k_register *control_regs; /* Control regs on chip */ |
266abb8f | 398 | const char *name; /* Name */ |
0b2e31dc NS |
399 | int alias; /* Alias for a cannonical name. If 1, then |
400 | succeeds canonical name, if -1 then | |
401 | succeeds canonical name, if <-1 ||>1 this is a | |
402 | deprecated name, and the next/previous name | |
403 | should be used. */ | |
266abb8f | 404 | }; |
252b5132 | 405 | |
266abb8f NS |
406 | /* We hold flags for features explicitly enabled and explicitly |
407 | disabled. */ | |
252b5132 | 408 | static int current_architecture; |
266abb8f | 409 | static int not_current_architecture; |
266abb8f NS |
410 | static const struct m68k_cpu *selected_arch; |
411 | static const struct m68k_cpu *selected_cpu; | |
412 | static int initialized; | |
252b5132 | 413 | |
266abb8f NS |
414 | /* Architecture models. */ |
415 | static const struct m68k_cpu m68k_archs[] = | |
416 | { | |
2da12c60 NS |
417 | {m68000, m68000_ctrl, "68000", 0}, |
418 | {m68010, m68010_ctrl, "68010", 0}, | |
419 | {m68020|m68881|m68851, m68020_ctrl, "68020", 0}, | |
420 | {m68030|m68881|m68851, m68020_ctrl, "68030", 0}, | |
421 | {m68040, m68040_ctrl, "68040", 0}, | |
422 | {m68060, m68060_ctrl, "68060", 0}, | |
423 | {cpu32|m68881, cpu32_ctrl, "cpu32", 0}, | |
424 | {mcfisa_a|mcfhwdiv, NULL, "isaa", 0}, | |
425 | {mcfisa_a|mcfhwdiv|mcfisa_aa|mcfusp, NULL, "isaaplus", 0}, | |
426 | {mcfisa_a|mcfhwdiv|mcfisa_b|mcfusp, NULL, "isab", 0}, | |
427 | {mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac|mcfusp, mcf_ctrl, "cfv4", 0}, | |
428 | {mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "cfv4e", 0}, | |
266abb8f NS |
429 | {0,0,NULL, 0} |
430 | }; | |
252b5132 | 431 | |
0b2e31dc NS |
432 | /* Architecture extensions, here 'alias' -1 for m68k, +1 for cf and 0 |
433 | for either. */ | |
266abb8f NS |
434 | static const struct m68k_cpu m68k_extensions[] = |
435 | { | |
2da12c60 NS |
436 | {m68851, NULL, "68851", -1}, |
437 | {m68881, NULL, "68881", -1}, | |
438 | {m68881, NULL, "68882", -1}, | |
0b2e31dc | 439 | |
2da12c60 | 440 | {cfloat|m68881, NULL, "float", 0}, |
266abb8f | 441 | |
2da12c60 NS |
442 | {mcfhwdiv, NULL, "div", 1}, |
443 | {mcfusp, NULL, "usp", 1}, | |
444 | {mcfmac, NULL, "mac", 1}, | |
445 | {mcfemac, NULL, "emac", 1}, | |
266abb8f | 446 | |
2da12c60 | 447 | {0,NULL,NULL, 0} |
266abb8f NS |
448 | }; |
449 | ||
450 | /* Processor list */ | |
451 | static const struct m68k_cpu m68k_cpus[] = | |
452 | { | |
2da12c60 NS |
453 | {m68000, m68000_ctrl, "68000", 0}, |
454 | {m68000, m68000_ctrl, "68ec000", 1}, | |
455 | {m68000, m68000_ctrl, "68hc000", 1}, | |
456 | {m68000, m68000_ctrl, "68hc001", 1}, | |
457 | {m68000, m68000_ctrl, "68008", 1}, | |
458 | {m68000, m68000_ctrl, "68302", 1}, | |
459 | {m68000, m68000_ctrl, "68306", 1}, | |
460 | {m68000, m68000_ctrl, "68307", 1}, | |
461 | {m68000, m68000_ctrl, "68322", 1}, | |
462 | {m68000, m68000_ctrl, "68356", 1}, | |
463 | {m68010, m68010_ctrl, "68010", 0}, | |
464 | {m68020|m68881|m68851, m68020_ctrl, "68020", 0}, | |
465 | {m68020|m68881|m68851, m68020_ctrl, "68k", 1}, | |
466 | {m68020|m68881|m68851, m68020_ctrl, "68ec020", 1}, | |
467 | {m68030|m68881|m68851, m68020_ctrl, "68030", 0}, | |
468 | {m68030|m68881|m68851, m68020_ctrl, "68ec030", 1}, | |
469 | {m68040, m68040_ctrl, "68040", 0}, | |
470 | {m68040, m68040_ctrl, "68ec040", 1}, | |
471 | {m68060, m68060_ctrl, "68060", 0}, | |
472 | {m68060, m68060_ctrl, "68ec060", 1}, | |
473 | ||
474 | {cpu32|m68881, cpu32_ctrl, "cpu32", 0}, | |
475 | {cpu32|m68881, cpu32_ctrl, "68330", 1}, | |
476 | {cpu32|m68881, cpu32_ctrl, "68331", 1}, | |
477 | {cpu32|m68881, cpu32_ctrl, "68332", 1}, | |
478 | {cpu32|m68881, cpu32_ctrl, "68333", 1}, | |
479 | {cpu32|m68881, cpu32_ctrl, "68334", 1}, | |
480 | {cpu32|m68881, cpu32_ctrl, "68336", 1}, | |
481 | {cpu32|m68881, cpu32_ctrl, "68340", 1}, | |
482 | {cpu32|m68881, cpu32_ctrl, "68341", 1}, | |
483 | {cpu32|m68881, cpu32_ctrl, "68349", 1}, | |
484 | {cpu32|m68881, cpu32_ctrl, "68360", 1}, | |
485 | ||
486 | {mcfisa_a, mcf_ctrl, "5200", 0}, | |
487 | {mcfisa_a, mcf_ctrl, "5202", 1}, | |
488 | {mcfisa_a, mcf_ctrl, "5204", 1}, | |
489 | {mcfisa_a, mcf_ctrl, "5206", 1}, | |
490 | ||
491 | {mcfisa_a|mcfhwdiv|mcfmac, mcf_ctrl, "5206e", 0}, | |
492 | ||
493 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5208_ctrl, "5207", -1}, | |
494 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5208_ctrl, "5208", 0}, | |
495 | ||
496 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5211", -1}, | |
497 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5212", -1}, | |
498 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5213", 0}, | |
499 | ||
500 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "5214", -1}, | |
501 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "5216", 0}, | |
502 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "521x", 2}, | |
503 | ||
504 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5232", -1}, | |
505 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5233", -1}, | |
506 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5234", -1}, | |
507 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5235", -1}, | |
508 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "523x", 0}, | |
509 | ||
510 | {mcfisa_a|mcfhwdiv|mcfemac, mcf5249_ctrl, "5249", 0}, | |
511 | {mcfisa_a|mcfhwdiv|mcfemac, mcf5250_ctrl, "5250", 0}, | |
512 | ||
513 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5271_ctrl, "5270", -1}, | |
514 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5271_ctrl, "5271", 0}, | |
515 | ||
516 | {mcfisa_a|mcfhwdiv|mcfmac, mcf5272_ctrl, "5272", 0}, | |
517 | ||
518 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5275_ctrl, "5274", -1}, | |
519 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5275_ctrl, "5275", 0}, | |
520 | ||
521 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5280", -1}, | |
522 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5281", -1}, | |
523 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5282", -1}, | |
524 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "528x", 0}, | |
525 | ||
526 | {mcfisa_a|mcfhwdiv|mcfmac, mcf_ctrl, "5307", 0}, | |
527 | ||
528 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5327", -1}, | |
529 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5328", -1}, | |
530 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5329", -1}, | |
531 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "532x", 0}, | |
532 | ||
533 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "5372", -1}, | |
534 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "5373", -1}, | |
535 | {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "537x", 0}, | |
536 | ||
537 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfmac, mcf_ctrl, "5407",0}, | |
538 | ||
539 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5470", -1}, | |
540 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5471", -1}, | |
541 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5472", -1}, | |
542 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5473", -1}, | |
543 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5474", -1}, | |
544 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5475", -1}, | |
545 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "547x", 0}, | |
546 | ||
547 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5480", -1}, | |
548 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5481", -1}, | |
549 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5482", -1}, | |
550 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5483", -1}, | |
551 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5484", -1}, | |
552 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "5485", -1}, | |
553 | {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "548x", 0}, | |
554 | ||
555 | {0,NULL,NULL, 0} | |
dc84e067 | 556 | }; |
252b5132 | 557 | |
266abb8f NS |
558 | static const struct m68k_cpu *m68k_lookup_cpu |
559 | (const char *, const struct m68k_cpu *, int, int *); | |
560 | static int m68k_set_arch (const char *, int, int); | |
561 | static int m68k_set_cpu (const char *, int, int); | |
562 | static int m68k_set_extension (const char *, int, int); | |
563 | static void m68k_init_arch (void); | |
252b5132 | 564 | |
151337e8 NC |
565 | /* This is the assembler relaxation table for m68k. m68k is a rich CISC |
566 | architecture and we have a lot of relaxation modes. */ | |
252b5132 | 567 | |
151337e8 NC |
568 | /* Macros used in the relaxation code. */ |
569 | #define TAB(x,y) (((x) << 2) + (y)) | |
570 | #define TABTYPE(x) ((x) >> 2) | |
571 | ||
572 | /* Relaxation states. */ | |
573 | #define BYTE 0 | |
574 | #define SHORT 1 | |
575 | #define LONG 2 | |
576 | #define SZ_UNDEF 3 | |
577 | ||
578 | /* Here are all the relaxation modes we support. First we can relax ordinary | |
579 | branches. On 68020 and higher and on CPU32 all branch instructions take | |
580 | three forms, so on these CPUs all branches always remain as such. When we | |
581 | have to expand to the LONG form on a 68000, though, we substitute an | |
582 | absolute jump instead. This is a direct replacement for unconditional | |
583 | branches and a branch over a jump for conditional branches. However, if the | |
584 | user requires PIC and disables this with --pcrel, we can only relax between | |
585 | BYTE and SHORT forms, punting if that isn't enough. This gives us four | |
586 | different relaxation modes for branches: */ | |
587 | ||
36759679 NC |
588 | #define BRANCHBWL 0 /* Branch byte, word, or long. */ |
589 | #define BRABSJUNC 1 /* Absolute jump for LONG, unconditional. */ | |
590 | #define BRABSJCOND 2 /* Absolute jump for LONG, conditional. */ | |
591 | #define BRANCHBW 3 /* Branch byte or word. */ | |
151337e8 NC |
592 | |
593 | /* We also relax coprocessor branches and DBcc's. All CPUs that support | |
594 | coprocessor branches support them in word and long forms, so we have only | |
595 | one relaxation mode for them. DBcc's are word only on all CPUs. We can | |
596 | relax them to the LONG form with a branch-around sequence. This sequence | |
597 | can use a long branch (if available) or an absolute jump (if acceptable). | |
598 | This gives us two relaxation modes. If long branches are not available and | |
599 | absolute jumps are not acceptable, we don't relax DBcc's. */ | |
600 | ||
36759679 NC |
601 | #define FBRANCH 4 /* Coprocessor branch. */ |
602 | #define DBCCLBR 5 /* DBcc relaxable with a long branch. */ | |
603 | #define DBCCABSJ 6 /* DBcc relaxable with an absolute jump. */ | |
151337e8 NC |
604 | |
605 | /* That's all for instruction relaxation. However, we also relax PC-relative | |
606 | operands. Specifically, we have three operand relaxation modes. On the | |
607 | 68000 PC-relative operands can only be 16-bit, but on 68020 and higher and | |
608 | on CPU32 they may be 16-bit or 32-bit. For the latter we relax between the | |
609 | two. Also PC+displacement+index operands in their simple form (with a non- | |
610 | suppressed index without memory indirection) are supported on all CPUs, but | |
611 | on the 68000 the displacement can be 8-bit only, whereas on 68020 and higher | |
612 | and on CPU32 we relax it to SHORT and LONG forms as well using the extended | |
613 | form of the PC+displacement+index operand. Finally, some absolute operands | |
614 | can be relaxed down to 16-bit PC-relative. */ | |
615 | ||
36759679 NC |
616 | #define PCREL1632 7 /* 16-bit or 32-bit PC-relative. */ |
617 | #define PCINDEX 8 /* PC + displacement + index. */ | |
618 | #define ABSTOPCREL 9 /* Absolute relax down to 16-bit PC-relative. */ | |
252b5132 RH |
619 | |
620 | /* Note that calls to frag_var need to specify the maximum expansion | |
621 | needed; this is currently 10 bytes for DBCC. */ | |
622 | ||
623 | /* The fields are: | |
624 | How far Forward this mode will reach: | |
625 | How far Backward this mode will reach: | |
626 | How many bytes this mode will add to the size of the frag | |
627 | Which mode to go to if the offset won't fit in this one | |
d7861ad2 AM |
628 | |
629 | Please check tc-m68k.h:md_prepare_relax_scan if changing this table. */ | |
252b5132 RH |
630 | relax_typeS md_relax_table[] = |
631 | { | |
ac62c346 AM |
632 | { 127, -128, 0, TAB (BRANCHBWL, SHORT) }, |
633 | { 32767, -32768, 2, TAB (BRANCHBWL, LONG) }, | |
634 | { 0, 0, 4, 0 }, | |
635 | { 1, 1, 0, 0 }, | |
636 | ||
637 | { 127, -128, 0, TAB (BRABSJUNC, SHORT) }, | |
638 | { 32767, -32768, 2, TAB (BRABSJUNC, LONG) }, | |
639 | { 0, 0, 4, 0 }, | |
640 | { 1, 1, 0, 0 }, | |
641 | ||
642 | { 127, -128, 0, TAB (BRABSJCOND, SHORT) }, | |
643 | { 32767, -32768, 2, TAB (BRABSJCOND, LONG) }, | |
644 | { 0, 0, 6, 0 }, | |
645 | { 1, 1, 0, 0 }, | |
646 | ||
647 | { 127, -128, 0, TAB (BRANCHBW, SHORT) }, | |
648 | { 0, 0, 2, 0 }, | |
649 | { 1, 1, 0, 0 }, | |
650 | { 1, 1, 0, 0 }, | |
651 | ||
36759679 | 652 | { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE. */ |
ac62c346 AM |
653 | { 32767, -32768, 2, TAB (FBRANCH, LONG) }, |
654 | { 0, 0, 4, 0 }, | |
655 | { 1, 1, 0, 0 }, | |
656 | ||
36759679 | 657 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
658 | { 32767, -32768, 2, TAB (DBCCLBR, LONG) }, |
659 | { 0, 0, 10, 0 }, | |
660 | { 1, 1, 0, 0 }, | |
661 | ||
36759679 | 662 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
663 | { 32767, -32768, 2, TAB (DBCCABSJ, LONG) }, |
664 | { 0, 0, 10, 0 }, | |
665 | { 1, 1, 0, 0 }, | |
666 | ||
36759679 | 667 | { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE. */ |
ac62c346 AM |
668 | { 32767, -32768, 2, TAB (PCREL1632, LONG) }, |
669 | { 0, 0, 6, 0 }, | |
670 | { 1, 1, 0, 0 }, | |
671 | ||
672 | { 125, -130, 0, TAB (PCINDEX, SHORT) }, | |
673 | { 32765, -32770, 2, TAB (PCINDEX, LONG) }, | |
674 | { 0, 0, 4, 0 }, | |
675 | { 1, 1, 0, 0 }, | |
676 | ||
36759679 | 677 | { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE. */ |
ac62c346 AM |
678 | { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) }, |
679 | { 0, 0, 4, 0 }, | |
680 | { 1, 1, 0, 0 }, | |
252b5132 RH |
681 | }; |
682 | ||
683 | /* These are the machine dependent pseudo-ops. These are included so | |
684 | the assembler can work on the output from the SUN C compiler, which | |
36759679 | 685 | generates these. */ |
252b5132 RH |
686 | |
687 | /* This table describes all the machine specific pseudo-ops the assembler | |
688 | has to support. The fields are: | |
689 | pseudo-op name without dot | |
690 | function to call to execute this pseudo-op | |
36759679 | 691 | Integer arg to pass to the function. */ |
252b5132 RH |
692 | const pseudo_typeS md_pseudo_table[] = |
693 | { | |
694 | {"data1", s_data1, 0}, | |
695 | {"data2", s_data2, 0}, | |
696 | {"bss", s_bss, 0}, | |
697 | {"even", s_even, 0}, | |
698 | {"skip", s_space, 0}, | |
699 | {"proc", s_proc, 0}, | |
700 | #if defined (TE_SUN3) || defined (OBJ_ELF) | |
701 | {"align", s_align_bytes, 0}, | |
702 | #endif | |
703 | #ifdef OBJ_ELF | |
704 | {"swbeg", s_ignore, 0}, | |
705 | #endif | |
706 | {"extend", float_cons, 'x'}, | |
707 | {"ldouble", float_cons, 'x'}, | |
708 | ||
266abb8f NS |
709 | {"arch", s_m68k_arch, 0}, |
710 | {"cpu", s_m68k_cpu, 0}, | |
711 | ||
252b5132 RH |
712 | /* The following pseudo-ops are supported for MRI compatibility. */ |
713 | {"chip", s_chip, 0}, | |
714 | {"comline", s_space, 1}, | |
715 | {"fopt", s_fopt, 0}, | |
716 | {"mask2", s_ignore, 0}, | |
717 | {"opt", s_opt, 0}, | |
718 | {"reg", s_reg, 0}, | |
719 | {"restore", s_restore, 0}, | |
720 | {"save", s_save, 0}, | |
721 | ||
722 | {"if", s_mri_if, 0}, | |
723 | {"if.b", s_mri_if, 'b'}, | |
724 | {"if.w", s_mri_if, 'w'}, | |
725 | {"if.l", s_mri_if, 'l'}, | |
726 | {"else", s_mri_else, 0}, | |
727 | {"else.s", s_mri_else, 's'}, | |
728 | {"else.l", s_mri_else, 'l'}, | |
729 | {"endi", s_mri_endi, 0}, | |
730 | {"break", s_mri_break, 0}, | |
731 | {"break.s", s_mri_break, 's'}, | |
732 | {"break.l", s_mri_break, 'l'}, | |
733 | {"next", s_mri_next, 0}, | |
734 | {"next.s", s_mri_next, 's'}, | |
735 | {"next.l", s_mri_next, 'l'}, | |
736 | {"for", s_mri_for, 0}, | |
737 | {"for.b", s_mri_for, 'b'}, | |
738 | {"for.w", s_mri_for, 'w'}, | |
739 | {"for.l", s_mri_for, 'l'}, | |
740 | {"endf", s_mri_endf, 0}, | |
741 | {"repeat", s_mri_repeat, 0}, | |
742 | {"until", s_mri_until, 0}, | |
743 | {"until.b", s_mri_until, 'b'}, | |
744 | {"until.w", s_mri_until, 'w'}, | |
745 | {"until.l", s_mri_until, 'l'}, | |
746 | {"while", s_mri_while, 0}, | |
747 | {"while.b", s_mri_while, 'b'}, | |
748 | {"while.w", s_mri_while, 'w'}, | |
749 | {"while.l", s_mri_while, 'l'}, | |
750 | {"endw", s_mri_endw, 0}, | |
751 | ||
752 | {0, 0, 0} | |
753 | }; | |
754 | ||
252b5132 | 755 | /* The mote pseudo ops are put into the opcode table, since they |
31302357 | 756 | don't start with a . they look like opcodes to gas. */ |
252b5132 | 757 | |
5a38dc70 | 758 | const pseudo_typeS mote_pseudo_table[] = |
252b5132 RH |
759 | { |
760 | ||
761 | {"dcl", cons, 4}, | |
762 | {"dc", cons, 2}, | |
763 | {"dcw", cons, 2}, | |
764 | {"dcb", cons, 1}, | |
765 | ||
766 | {"dsl", s_space, 4}, | |
767 | {"ds", s_space, 2}, | |
768 | {"dsw", s_space, 2}, | |
769 | {"dsb", s_space, 1}, | |
770 | ||
771 | {"xdef", s_globl, 0}, | |
772 | #ifdef OBJ_ELF | |
773 | {"align", s_align_bytes, 0}, | |
774 | #else | |
775 | {"align", s_align_ptwo, 0}, | |
776 | #endif | |
777 | #ifdef M68KCOFF | |
778 | {"sect", obj_coff_section, 0}, | |
779 | {"section", obj_coff_section, 0}, | |
780 | #endif | |
781 | {0, 0, 0} | |
782 | }; | |
783 | ||
bd17c2c3 AM |
784 | /* Truncate and sign-extend at 32 bits, so that building on a 64-bit host |
785 | gives identical results to a 32-bit host. */ | |
786 | #define TRUNC(X) ((valueT) (X) & 0xffffffff) | |
787 | #define SEXT(X) ((TRUNC (X) ^ 0x80000000) - 0x80000000) | |
788 | ||
789 | #define issbyte(x) ((valueT) SEXT (x) + 0x80 < 0x100) | |
790 | #define isubyte(x) ((valueT) TRUNC (x) < 0x100) | |
791 | #define issword(x) ((valueT) SEXT (x) + 0x8000 < 0x10000) | |
792 | #define isuword(x) ((valueT) TRUNC (x) < 0x10000) | |
793 | ||
794 | #define isbyte(x) ((valueT) SEXT (x) + 0xff < 0x1ff) | |
795 | #define isword(x) ((valueT) SEXT (x) + 0xffff < 0x1ffff) | |
252b5132 RH |
796 | #define islong(x) (1) |
797 | ||
252b5132 RH |
798 | static char notend_table[256]; |
799 | static char alt_notend_table[256]; | |
800 | #define notend(s) \ | |
801 | (! (notend_table[(unsigned char) *s] \ | |
802 | || (*s == ':' \ | |
803 | && alt_notend_table[(unsigned char) s[1]]))) | |
804 | ||
252b5132 RH |
805 | #ifdef OBJ_ELF |
806 | ||
c801568a AM |
807 | /* Return zero if the reference to SYMBOL from within the same segment may |
808 | be relaxed. */ | |
809 | ||
810 | /* On an ELF system, we can't relax an externally visible symbol, | |
811 | because it may be overridden by a shared library. However, if | |
812 | TARGET_OS is "elf", then we presume that we are assembling for an | |
813 | embedded system, in which case we don't have to worry about shared | |
814 | libraries, and we can relax any external sym. */ | |
815 | ||
816 | #define relaxable_symbol(symbol) \ | |
6358301e | 817 | (!((S_IS_EXTERNAL (symbol) && EXTERN_FORCE_RELOC) \ |
c801568a AM |
818 | || S_IS_WEAK (symbol))) |
819 | ||
252b5132 RH |
820 | /* Compute the relocation code for a fixup of SIZE bytes, using pc |
821 | relative relocation if PCREL is non-zero. PIC says whether a special | |
822 | pic relocation was requested. */ | |
823 | ||
252b5132 | 824 | static bfd_reloc_code_real_type |
31302357 | 825 | get_reloc_code (int size, int pcrel, enum pic_relocation pic) |
252b5132 RH |
826 | { |
827 | switch (pic) | |
828 | { | |
829 | case pic_got_pcrel: | |
830 | switch (size) | |
831 | { | |
832 | case 1: | |
833 | return BFD_RELOC_8_GOT_PCREL; | |
834 | case 2: | |
835 | return BFD_RELOC_16_GOT_PCREL; | |
836 | case 4: | |
837 | return BFD_RELOC_32_GOT_PCREL; | |
838 | } | |
839 | break; | |
840 | ||
841 | case pic_got_off: | |
842 | switch (size) | |
843 | { | |
844 | case 1: | |
845 | return BFD_RELOC_8_GOTOFF; | |
846 | case 2: | |
847 | return BFD_RELOC_16_GOTOFF; | |
848 | case 4: | |
849 | return BFD_RELOC_32_GOTOFF; | |
850 | } | |
851 | break; | |
852 | ||
853 | case pic_plt_pcrel: | |
854 | switch (size) | |
855 | { | |
856 | case 1: | |
857 | return BFD_RELOC_8_PLT_PCREL; | |
858 | case 2: | |
859 | return BFD_RELOC_16_PLT_PCREL; | |
860 | case 4: | |
861 | return BFD_RELOC_32_PLT_PCREL; | |
862 | } | |
863 | break; | |
864 | ||
865 | case pic_plt_off: | |
866 | switch (size) | |
867 | { | |
868 | case 1: | |
869 | return BFD_RELOC_8_PLTOFF; | |
870 | case 2: | |
871 | return BFD_RELOC_16_PLTOFF; | |
872 | case 4: | |
873 | return BFD_RELOC_32_PLTOFF; | |
874 | } | |
875 | break; | |
876 | ||
877 | case pic_none: | |
878 | if (pcrel) | |
879 | { | |
880 | switch (size) | |
881 | { | |
882 | case 1: | |
883 | return BFD_RELOC_8_PCREL; | |
884 | case 2: | |
885 | return BFD_RELOC_16_PCREL; | |
886 | case 4: | |
887 | return BFD_RELOC_32_PCREL; | |
888 | } | |
889 | } | |
890 | else | |
891 | { | |
892 | switch (size) | |
893 | { | |
894 | case 1: | |
895 | return BFD_RELOC_8; | |
896 | case 2: | |
897 | return BFD_RELOC_16; | |
898 | case 4: | |
899 | return BFD_RELOC_32; | |
900 | } | |
901 | } | |
902 | } | |
903 | ||
904 | if (pcrel) | |
905 | { | |
906 | if (pic == pic_none) | |
907 | as_bad (_("Can not do %d byte pc-relative relocation"), size); | |
908 | else | |
909 | as_bad (_("Can not do %d byte pc-relative pic relocation"), size); | |
910 | } | |
911 | else | |
912 | { | |
913 | if (pic == pic_none) | |
914 | as_bad (_("Can not do %d byte relocation"), size); | |
915 | else | |
916 | as_bad (_("Can not do %d byte pic relocation"), size); | |
917 | } | |
918 | ||
919 | return BFD_RELOC_NONE; | |
920 | } | |
921 | ||
922 | /* Here we decide which fixups can be adjusted to make them relative | |
923 | to the beginning of the section instead of the symbol. Basically | |
924 | we need to make sure that the dynamic relocations are done | |
925 | correctly, so in some cases we force the original symbol to be | |
926 | used. */ | |
927 | int | |
31302357 | 928 | tc_m68k_fix_adjustable (fixS *fixP) |
252b5132 | 929 | { |
36759679 | 930 | /* Adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
931 | switch (fixP->fx_r_type) |
932 | { | |
933 | case BFD_RELOC_8_GOT_PCREL: | |
934 | case BFD_RELOC_16_GOT_PCREL: | |
935 | case BFD_RELOC_32_GOT_PCREL: | |
936 | case BFD_RELOC_8_GOTOFF: | |
937 | case BFD_RELOC_16_GOTOFF: | |
938 | case BFD_RELOC_32_GOTOFF: | |
939 | case BFD_RELOC_8_PLT_PCREL: | |
940 | case BFD_RELOC_16_PLT_PCREL: | |
941 | case BFD_RELOC_32_PLT_PCREL: | |
942 | case BFD_RELOC_8_PLTOFF: | |
943 | case BFD_RELOC_16_PLTOFF: | |
944 | case BFD_RELOC_32_PLTOFF: | |
945 | return 0; | |
946 | ||
947 | case BFD_RELOC_VTABLE_INHERIT: | |
948 | case BFD_RELOC_VTABLE_ENTRY: | |
949 | return 0; | |
950 | ||
951 | default: | |
952 | return 1; | |
953 | } | |
954 | } | |
955 | ||
956 | #else /* !OBJ_ELF */ | |
957 | ||
958 | #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC | |
959 | ||
c801568a AM |
960 | #define relaxable_symbol(symbol) 1 |
961 | ||
252b5132 RH |
962 | #endif /* OBJ_ELF */ |
963 | ||
252b5132 | 964 | arelent * |
31302357 | 965 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
966 | { |
967 | arelent *reloc; | |
968 | bfd_reloc_code_real_type code; | |
969 | ||
8ec6253e NC |
970 | /* If the tcbit is set, then this was a fixup of a negative value |
971 | that was never resolved. We do not have a reloc to handle this, | |
972 | so just return. We assume that other code will have detected this | |
973 | situation and produced a helpful error message, so we just tell the | |
974 | user that the reloc cannot be produced. */ | |
252b5132 | 975 | if (fixp->fx_tcbit) |
8ec6253e NC |
976 | { |
977 | if (fixp->fx_addsy) | |
b091f402 AM |
978 | as_bad_where (fixp->fx_file, fixp->fx_line, |
979 | _("Unable to produce reloc against symbol '%s'"), | |
980 | S_GET_NAME (fixp->fx_addsy)); | |
8ec6253e NC |
981 | return NULL; |
982 | } | |
252b5132 RH |
983 | |
984 | if (fixp->fx_r_type != BFD_RELOC_NONE) | |
985 | { | |
986 | code = fixp->fx_r_type; | |
987 | ||
988 | /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible | |
989 | that fixup_segment converted a non-PC relative reloc into a | |
990 | PC relative reloc. In such a case, we need to convert the | |
991 | reloc code. */ | |
992 | if (fixp->fx_pcrel) | |
993 | { | |
994 | switch (code) | |
995 | { | |
996 | case BFD_RELOC_8: | |
997 | code = BFD_RELOC_8_PCREL; | |
998 | break; | |
999 | case BFD_RELOC_16: | |
1000 | code = BFD_RELOC_16_PCREL; | |
1001 | break; | |
1002 | case BFD_RELOC_32: | |
1003 | code = BFD_RELOC_32_PCREL; | |
1004 | break; | |
1005 | case BFD_RELOC_8_PCREL: | |
1006 | case BFD_RELOC_16_PCREL: | |
1007 | case BFD_RELOC_32_PCREL: | |
1008 | case BFD_RELOC_8_GOT_PCREL: | |
1009 | case BFD_RELOC_16_GOT_PCREL: | |
1010 | case BFD_RELOC_32_GOT_PCREL: | |
1011 | case BFD_RELOC_8_GOTOFF: | |
1012 | case BFD_RELOC_16_GOTOFF: | |
1013 | case BFD_RELOC_32_GOTOFF: | |
1014 | case BFD_RELOC_8_PLT_PCREL: | |
1015 | case BFD_RELOC_16_PLT_PCREL: | |
1016 | case BFD_RELOC_32_PLT_PCREL: | |
1017 | case BFD_RELOC_8_PLTOFF: | |
1018 | case BFD_RELOC_16_PLTOFF: | |
1019 | case BFD_RELOC_32_PLTOFF: | |
1020 | break; | |
1021 | default: | |
1022 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1023 | _("Cannot make %s relocation PC relative"), | |
1024 | bfd_get_reloc_code_name (code)); | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | else | |
1029 | { | |
1030 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
1031 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
1032 | { | |
1033 | #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break | |
1034 | MAP (1, 0, BFD_RELOC_8); | |
1035 | MAP (2, 0, BFD_RELOC_16); | |
1036 | MAP (4, 0, BFD_RELOC_32); | |
1037 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
1038 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
1039 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
1040 | default: | |
1041 | abort (); | |
1042 | } | |
1043 | } | |
1044 | #undef F | |
1045 | #undef MAP | |
1046 | ||
1047 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
1048 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
1049 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
1050 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
1051 | #ifndef OBJ_ELF | |
1052 | if (fixp->fx_pcrel) | |
1053 | reloc->addend = fixp->fx_addnumber; | |
1054 | else | |
1055 | reloc->addend = 0; | |
1056 | #else | |
1057 | if (!fixp->fx_pcrel) | |
1058 | reloc->addend = fixp->fx_addnumber; | |
1059 | else | |
1060 | reloc->addend = (section->vma | |
8390138c AS |
1061 | /* Explicit sign extension in case char is |
1062 | unsigned. */ | |
1063 | + ((fixp->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80 | |
252b5132 RH |
1064 | + fixp->fx_addnumber |
1065 | + md_pcrel_from (fixp)); | |
1066 | #endif | |
1067 | ||
1068 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1069 | assert (reloc->howto != 0); | |
1070 | ||
1071 | return reloc; | |
1072 | } | |
1073 | ||
252b5132 RH |
1074 | /* Handle of the OPCODE hash table. NULL means any use before |
1075 | m68k_ip_begin() will crash. */ | |
1076 | static struct hash_control *op_hash; | |
1077 | \f | |
1078 | /* Assemble an m68k instruction. */ | |
1079 | ||
1080 | static void | |
31302357 | 1081 | m68k_ip (char *instring) |
252b5132 RH |
1082 | { |
1083 | register char *p; | |
1084 | register struct m68k_op *opP; | |
1085 | register const struct m68k_incant *opcode; | |
1086 | register const char *s; | |
1087 | register int tmpreg = 0, baseo = 0, outro = 0, nextword; | |
1088 | char *pdot, *pdotmove; | |
1089 | enum m68k_size siz1, siz2; | |
1090 | char c; | |
1091 | int losing; | |
1092 | int opsfound; | |
03b13e59 | 1093 | struct m68k_op operands_backup[6]; |
252b5132 RH |
1094 | LITTLENUM_TYPE words[6]; |
1095 | LITTLENUM_TYPE *wordp; | |
1096 | unsigned long ok_arch = 0; | |
1097 | ||
1098 | if (*instring == ' ') | |
36759679 | 1099 | instring++; /* Skip leading whitespace. */ |
252b5132 RH |
1100 | |
1101 | /* Scan up to end of operation-code, which MUST end in end-of-string | |
92774660 | 1102 | or exactly 1 space. */ |
252b5132 RH |
1103 | pdot = 0; |
1104 | for (p = instring; *p != '\0'; p++) | |
1105 | { | |
1106 | if (*p == ' ') | |
1107 | break; | |
1108 | if (*p == '.') | |
1109 | pdot = p; | |
1110 | } | |
1111 | ||
1112 | if (p == instring) | |
1113 | { | |
1114 | the_ins.error = _("No operator"); | |
1115 | return; | |
1116 | } | |
1117 | ||
1118 | /* p now points to the end of the opcode name, probably whitespace. | |
1119 | Make sure the name is null terminated by clobbering the | |
1120 | whitespace, look it up in the hash table, then fix it back. | |
1121 | Remove a dot, first, since the opcode tables have none. */ | |
1122 | if (pdot != NULL) | |
1123 | { | |
1124 | for (pdotmove = pdot; pdotmove < p; pdotmove++) | |
1125 | *pdotmove = pdotmove[1]; | |
1126 | p--; | |
1127 | } | |
1128 | ||
1129 | c = *p; | |
1130 | *p = '\0'; | |
1131 | opcode = (const struct m68k_incant *) hash_find (op_hash, instring); | |
1132 | *p = c; | |
1133 | ||
1134 | if (pdot != NULL) | |
1135 | { | |
1136 | for (pdotmove = p; pdotmove > pdot; pdotmove--) | |
1137 | *pdotmove = pdotmove[-1]; | |
1138 | *pdot = '.'; | |
1139 | ++p; | |
1140 | } | |
1141 | ||
1142 | if (opcode == NULL) | |
1143 | { | |
1144 | the_ins.error = _("Unknown operator"); | |
1145 | return; | |
1146 | } | |
1147 | ||
36759679 | 1148 | /* Found a legitimate opcode, start matching operands. */ |
252b5132 RH |
1149 | while (*p == ' ') |
1150 | ++p; | |
1151 | ||
1152 | if (opcode->m_operands == 0) | |
1153 | { | |
1154 | char *old = input_line_pointer; | |
1155 | *old = '\n'; | |
1156 | input_line_pointer = p; | |
36759679 | 1157 | /* Ahh - it's a motorola style psuedo op. */ |
252b5132 RH |
1158 | mote_pseudo_table[opcode->m_opnum].poc_handler |
1159 | (mote_pseudo_table[opcode->m_opnum].poc_val); | |
1160 | input_line_pointer = old; | |
1161 | *old = 0; | |
1162 | ||
1163 | return; | |
1164 | } | |
1165 | ||
1166 | if (flag_mri && opcode->m_opnum == 0) | |
1167 | { | |
1168 | /* In MRI mode, random garbage is allowed after an instruction | |
1169 | which accepts no operands. */ | |
1170 | the_ins.args = opcode->m_operands; | |
1171 | the_ins.numargs = opcode->m_opnum; | |
1172 | the_ins.numo = opcode->m_codenum; | |
1173 | the_ins.opcode[0] = getone (opcode); | |
1174 | the_ins.opcode[1] = gettwo (opcode); | |
1175 | return; | |
1176 | } | |
1177 | ||
1178 | for (opP = &the_ins.operands[0]; *p; opP++) | |
1179 | { | |
1180 | p = crack_operand (p, opP); | |
1181 | ||
1182 | if (opP->error) | |
1183 | { | |
1184 | the_ins.error = opP->error; | |
1185 | return; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | opsfound = opP - &the_ins.operands[0]; | |
1190 | ||
1191 | /* This ugly hack is to support the floating pt opcodes in their | |
1192 | standard form. Essentially, we fake a first enty of type COP#1 */ | |
1193 | if (opcode->m_operands[0] == 'I') | |
1194 | { | |
1195 | int n; | |
1196 | ||
1197 | for (n = opsfound; n > 0; --n) | |
1198 | the_ins.operands[n] = the_ins.operands[n - 1]; | |
1199 | ||
31302357 | 1200 | memset (&the_ins.operands[0], '\0', sizeof (the_ins.operands[0])); |
252b5132 RH |
1201 | the_ins.operands[0].mode = CONTROL; |
1202 | the_ins.operands[0].reg = m68k_float_copnum; | |
1203 | opsfound++; | |
1204 | } | |
1205 | ||
36759679 | 1206 | /* We've got the operands. Find an opcode that'll accept them. */ |
252b5132 RH |
1207 | for (losing = 0;;) |
1208 | { | |
1209 | /* If we didn't get the right number of ops, or we have no | |
92774660 | 1210 | common model with this pattern then reject this pattern. */ |
252b5132 RH |
1211 | |
1212 | ok_arch |= opcode->m_arch; | |
1213 | if (opsfound != opcode->m_opnum | |
1214 | || ((opcode->m_arch & current_architecture) == 0)) | |
1215 | ++losing; | |
1216 | else | |
1217 | { | |
03b13e59 NC |
1218 | int i; |
1219 | ||
1220 | /* Make a copy of the operands of this insn so that | |
1221 | we can modify them safely, should we want to. */ | |
1222 | assert (opsfound <= (int) ARRAY_SIZE (operands_backup)); | |
1223 | for (i = 0; i < opsfound; i++) | |
1224 | operands_backup[i] = the_ins.operands[i]; | |
1225 | ||
1226 | for (s = opcode->m_operands, opP = &operands_backup[0]; | |
252b5132 RH |
1227 | *s && !losing; |
1228 | s += 2, opP++) | |
1229 | { | |
1230 | /* Warning: this switch is huge! */ | |
1231 | /* I've tried to organize the cases into this order: | |
1232 | non-alpha first, then alpha by letter. Lower-case | |
1233 | goes directly before uppercase counterpart. */ | |
1234 | /* Code with multiple case ...: gets sorted by the lowest | |
1235 | case ... it belongs to. I hope this makes sense. */ | |
1236 | switch (*s) | |
1237 | { | |
1238 | case '!': | |
1239 | switch (opP->mode) | |
1240 | { | |
1241 | case IMMED: | |
1242 | case DREG: | |
1243 | case AREG: | |
1244 | case FPREG: | |
1245 | case CONTROL: | |
1246 | case AINC: | |
1247 | case ADEC: | |
1248 | case REGLST: | |
1249 | losing++; | |
1250 | break; | |
1251 | default: | |
1252 | break; | |
1253 | } | |
1254 | break; | |
1255 | ||
1256 | case '<': | |
1257 | switch (opP->mode) | |
1258 | { | |
1259 | case DREG: | |
1260 | case AREG: | |
1261 | case FPREG: | |
1262 | case CONTROL: | |
1263 | case IMMED: | |
1264 | case ADEC: | |
1265 | case REGLST: | |
1266 | losing++; | |
1267 | break; | |
1268 | default: | |
1269 | break; | |
1270 | } | |
1271 | break; | |
1272 | ||
1273 | case '>': | |
1274 | switch (opP->mode) | |
1275 | { | |
1276 | case DREG: | |
1277 | case AREG: | |
1278 | case FPREG: | |
1279 | case CONTROL: | |
1280 | case IMMED: | |
1281 | case AINC: | |
1282 | case REGLST: | |
1283 | losing++; | |
1284 | break; | |
1285 | case ABSL: | |
1286 | break; | |
1287 | default: | |
1288 | if (opP->reg == PC | |
1289 | || opP->reg == ZPC) | |
1290 | losing++; | |
1291 | break; | |
1292 | } | |
1293 | break; | |
1294 | ||
1295 | case 'm': | |
1296 | switch (opP->mode) | |
1297 | { | |
1298 | case DREG: | |
1299 | case AREG: | |
1300 | case AINDR: | |
1301 | case AINC: | |
1302 | case ADEC: | |
1303 | break; | |
1304 | default: | |
1305 | losing++; | |
1306 | } | |
8a104df9 | 1307 | break; |
252b5132 RH |
1308 | |
1309 | case 'n': | |
1310 | switch (opP->mode) | |
1311 | { | |
1312 | case DISP: | |
1313 | break; | |
1314 | default: | |
1315 | losing++; | |
1316 | } | |
8a104df9 | 1317 | break; |
252b5132 RH |
1318 | |
1319 | case 'o': | |
1320 | switch (opP->mode) | |
1321 | { | |
1322 | case BASE: | |
1323 | case ABSL: | |
1324 | case IMMED: | |
1325 | break; | |
1326 | default: | |
1327 | losing++; | |
1328 | } | |
8a104df9 | 1329 | break; |
252b5132 RH |
1330 | |
1331 | case 'p': | |
1332 | switch (opP->mode) | |
1333 | { | |
1334 | case DREG: | |
1335 | case AREG: | |
1336 | case AINDR: | |
1337 | case AINC: | |
1338 | case ADEC: | |
1339 | break; | |
1340 | case DISP: | |
1341 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1342 | losing++; |
252b5132 RH |
1343 | break; |
1344 | default: | |
1345 | losing++; | |
1346 | } | |
8a104df9 | 1347 | break; |
252b5132 RH |
1348 | |
1349 | case 'q': | |
1350 | switch (opP->mode) | |
1351 | { | |
1352 | case DREG: | |
1353 | case AINDR: | |
1354 | case AINC: | |
1355 | case ADEC: | |
1356 | break; | |
1357 | case DISP: | |
1358 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1359 | losing++; |
252b5132 RH |
1360 | break; |
1361 | default: | |
1362 | losing++; | |
1363 | break; | |
1364 | } | |
8a104df9 | 1365 | break; |
252b5132 RH |
1366 | |
1367 | case 'v': | |
1368 | switch (opP->mode) | |
1369 | { | |
1370 | case DREG: | |
1371 | case AINDR: | |
1372 | case AINC: | |
1373 | case ADEC: | |
1374 | case ABSL: | |
1375 | break; | |
1376 | case DISP: | |
1377 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1378 | losing++; |
252b5132 RH |
1379 | break; |
1380 | default: | |
1381 | losing++; | |
1382 | break; | |
1383 | } | |
1384 | break; | |
1385 | ||
1386 | case '#': | |
1387 | if (opP->mode != IMMED) | |
1388 | losing++; | |
1389 | else if (s[1] == 'b' | |
1390 | && ! isvar (&opP->disp) | |
1391 | && (opP->disp.exp.X_op != O_constant | |
1392 | || ! isbyte (opP->disp.exp.X_add_number))) | |
1393 | losing++; | |
1394 | else if (s[1] == 'B' | |
1395 | && ! isvar (&opP->disp) | |
1396 | && (opP->disp.exp.X_op != O_constant | |
1397 | || ! issbyte (opP->disp.exp.X_add_number))) | |
1398 | losing++; | |
1399 | else if (s[1] == 'w' | |
1400 | && ! isvar (&opP->disp) | |
1401 | && (opP->disp.exp.X_op != O_constant | |
1402 | || ! isword (opP->disp.exp.X_add_number))) | |
1403 | losing++; | |
1404 | else if (s[1] == 'W' | |
1405 | && ! isvar (&opP->disp) | |
1406 | && (opP->disp.exp.X_op != O_constant | |
1407 | || ! issword (opP->disp.exp.X_add_number))) | |
1408 | losing++; | |
1409 | break; | |
1410 | ||
1411 | case '^': | |
1412 | case 'T': | |
1413 | if (opP->mode != IMMED) | |
1414 | losing++; | |
1415 | break; | |
1416 | ||
1417 | case '$': | |
1418 | if (opP->mode == AREG | |
1419 | || opP->mode == CONTROL | |
1420 | || opP->mode == FPREG | |
1421 | || opP->mode == IMMED | |
1422 | || opP->mode == REGLST | |
1423 | || (opP->mode != ABSL | |
1424 | && (opP->reg == PC | |
1425 | || opP->reg == ZPC))) | |
1426 | losing++; | |
1427 | break; | |
1428 | ||
1429 | case '%': | |
1430 | if (opP->mode == CONTROL | |
1431 | || opP->mode == FPREG | |
1432 | || opP->mode == REGLST | |
1433 | || opP->mode == IMMED | |
1434 | || (opP->mode != ABSL | |
1435 | && (opP->reg == PC | |
1436 | || opP->reg == ZPC))) | |
1437 | losing++; | |
1438 | break; | |
1439 | ||
1440 | case '&': | |
1441 | switch (opP->mode) | |
1442 | { | |
1443 | case DREG: | |
1444 | case AREG: | |
1445 | case FPREG: | |
1446 | case CONTROL: | |
1447 | case IMMED: | |
1448 | case AINC: | |
1449 | case ADEC: | |
1450 | case REGLST: | |
1451 | losing++; | |
1452 | break; | |
1453 | case ABSL: | |
1454 | break; | |
1455 | default: | |
1456 | if (opP->reg == PC | |
1457 | || opP->reg == ZPC) | |
1458 | losing++; | |
1459 | break; | |
1460 | } | |
1461 | break; | |
1462 | ||
1463 | case '*': | |
1464 | if (opP->mode == CONTROL | |
1465 | || opP->mode == FPREG | |
1466 | || opP->mode == REGLST) | |
1467 | losing++; | |
1468 | break; | |
1469 | ||
1470 | case '+': | |
1471 | if (opP->mode != AINC) | |
1472 | losing++; | |
1473 | break; | |
1474 | ||
1475 | case '-': | |
1476 | if (opP->mode != ADEC) | |
1477 | losing++; | |
1478 | break; | |
1479 | ||
1480 | case '/': | |
1481 | switch (opP->mode) | |
1482 | { | |
1483 | case AREG: | |
1484 | case CONTROL: | |
1485 | case FPREG: | |
1486 | case AINC: | |
1487 | case ADEC: | |
1488 | case IMMED: | |
1489 | case REGLST: | |
1490 | losing++; | |
1491 | break; | |
1492 | default: | |
1493 | break; | |
1494 | } | |
1495 | break; | |
1496 | ||
1497 | case ';': | |
1498 | switch (opP->mode) | |
1499 | { | |
1500 | case AREG: | |
1501 | case CONTROL: | |
1502 | case FPREG: | |
1503 | case REGLST: | |
1504 | losing++; | |
1505 | break; | |
1506 | default: | |
1507 | break; | |
1508 | } | |
1509 | break; | |
1510 | ||
1511 | case '?': | |
1512 | switch (opP->mode) | |
1513 | { | |
1514 | case AREG: | |
1515 | case CONTROL: | |
1516 | case FPREG: | |
1517 | case AINC: | |
1518 | case ADEC: | |
1519 | case IMMED: | |
1520 | case REGLST: | |
1521 | losing++; | |
1522 | break; | |
1523 | case ABSL: | |
1524 | break; | |
1525 | default: | |
1526 | if (opP->reg == PC || opP->reg == ZPC) | |
1527 | losing++; | |
1528 | break; | |
1529 | } | |
1530 | break; | |
1531 | ||
1532 | case '@': | |
1533 | switch (opP->mode) | |
1534 | { | |
1535 | case AREG: | |
1536 | case CONTROL: | |
1537 | case FPREG: | |
1538 | case IMMED: | |
1539 | case REGLST: | |
1540 | losing++; | |
1541 | break; | |
1542 | default: | |
1543 | break; | |
1544 | } | |
1545 | break; | |
1546 | ||
1547 | case '~': /* For now! (JF FOO is this right?) */ | |
1548 | switch (opP->mode) | |
1549 | { | |
1550 | case DREG: | |
1551 | case AREG: | |
1552 | case CONTROL: | |
1553 | case FPREG: | |
1554 | case IMMED: | |
1555 | case REGLST: | |
1556 | losing++; | |
1557 | break; | |
1558 | case ABSL: | |
1559 | break; | |
1560 | default: | |
1561 | if (opP->reg == PC | |
1562 | || opP->reg == ZPC) | |
1563 | losing++; | |
1564 | break; | |
1565 | } | |
1566 | break; | |
1567 | ||
1568 | case '3': | |
1569 | if (opP->mode != CONTROL | |
1570 | || (opP->reg != TT0 && opP->reg != TT1)) | |
1571 | losing++; | |
1572 | break; | |
1573 | ||
1574 | case 'A': | |
1575 | if (opP->mode != AREG) | |
1576 | losing++; | |
1577 | break; | |
1578 | ||
1579 | case 'a': | |
1580 | if (opP->mode != AINDR) | |
1581 | ++losing; | |
1582 | break; | |
1583 | ||
fd99574b NC |
1584 | case '4': |
1585 | if (opP->mode != AINDR && opP->mode != AINC && opP->mode != ADEC | |
1586 | && (opP->mode != DISP | |
1587 | || opP->reg < ADDR0 | |
1588 | || opP->reg > ADDR7)) | |
1589 | ++losing; | |
1590 | break; | |
1591 | ||
252b5132 RH |
1592 | case 'B': /* FOO */ |
1593 | if (opP->mode != ABSL | |
1594 | || (flag_long_jumps | |
1595 | && strncmp (instring, "jbsr", 4) == 0)) | |
1596 | losing++; | |
1597 | break; | |
1598 | ||
3e602632 NC |
1599 | case 'b': |
1600 | switch (opP->mode) | |
1601 | { | |
1602 | case IMMED: | |
1603 | case ABSL: | |
1604 | case AREG: | |
1605 | case FPREG: | |
1606 | case CONTROL: | |
1607 | case POST: | |
1608 | case PRE: | |
1609 | case REGLST: | |
1610 | losing++; | |
1611 | break; | |
1612 | default: | |
1613 | break; | |
1614 | } | |
1615 | break; | |
1616 | ||
252b5132 RH |
1617 | case 'C': |
1618 | if (opP->mode != CONTROL || opP->reg != CCR) | |
1619 | losing++; | |
1620 | break; | |
1621 | ||
1622 | case 'd': | |
1623 | if (opP->mode != DISP | |
1624 | || opP->reg < ADDR0 | |
1625 | || opP->reg > ADDR7) | |
1626 | losing++; | |
1627 | break; | |
1628 | ||
1629 | case 'D': | |
1630 | if (opP->mode != DREG) | |
1631 | losing++; | |
1632 | break; | |
1633 | ||
6da466c7 ILT |
1634 | case 'E': |
1635 | if (opP->reg != ACC) | |
1636 | losing++; | |
1637 | break; | |
1638 | ||
fd99574b NC |
1639 | case 'e': |
1640 | if (opP->reg != ACC && opP->reg != ACC1 | |
1641 | && opP->reg != ACC2 && opP->reg != ACC3) | |
1642 | losing++; | |
1643 | break; | |
1644 | ||
252b5132 RH |
1645 | case 'F': |
1646 | if (opP->mode != FPREG) | |
1647 | losing++; | |
1648 | break; | |
1649 | ||
6da466c7 ILT |
1650 | case 'G': |
1651 | if (opP->reg != MACSR) | |
1652 | losing++; | |
1653 | break; | |
1654 | ||
fd99574b NC |
1655 | case 'g': |
1656 | if (opP->reg != ACCEXT01 && opP->reg != ACCEXT23) | |
1657 | losing++; | |
1658 | break; | |
1659 | ||
6da466c7 ILT |
1660 | case 'H': |
1661 | if (opP->reg != MASK) | |
1662 | losing++; | |
1663 | break; | |
1664 | ||
252b5132 RH |
1665 | case 'I': |
1666 | if (opP->mode != CONTROL | |
1667 | || opP->reg < COP0 | |
1668 | || opP->reg > COP7) | |
1669 | losing++; | |
1670 | break; | |
1671 | ||
fd99574b NC |
1672 | case 'i': |
1673 | if (opP->mode != LSH && opP->mode != RSH) | |
1674 | losing++; | |
1675 | break; | |
1676 | ||
252b5132 RH |
1677 | case 'J': |
1678 | if (opP->mode != CONTROL | |
1679 | || opP->reg < USP | |
0b2e31dc NS |
1680 | || opP->reg > last_movec_reg |
1681 | || !control_regs) | |
252b5132 RH |
1682 | losing++; |
1683 | else | |
1684 | { | |
1685 | const enum m68k_register *rp; | |
0b2e31dc | 1686 | |
252b5132 RH |
1687 | for (rp = control_regs; *rp; rp++) |
1688 | if (*rp == opP->reg) | |
1689 | break; | |
1690 | if (*rp == 0) | |
1691 | losing++; | |
1692 | } | |
1693 | break; | |
1694 | ||
1695 | case 'k': | |
1696 | if (opP->mode != IMMED) | |
1697 | losing++; | |
1698 | break; | |
1699 | ||
1700 | case 'l': | |
1701 | case 'L': | |
1702 | if (opP->mode == DREG | |
1703 | || opP->mode == AREG | |
1704 | || opP->mode == FPREG) | |
1705 | { | |
1706 | if (s[1] == '8') | |
1707 | losing++; | |
1708 | else | |
1709 | { | |
1710 | switch (opP->mode) | |
1711 | { | |
1712 | case DREG: | |
1713 | opP->mask = 1 << (opP->reg - DATA0); | |
1714 | break; | |
1715 | case AREG: | |
1716 | opP->mask = 1 << (opP->reg - ADDR0 + 8); | |
1717 | break; | |
1718 | case FPREG: | |
1719 | opP->mask = 1 << (opP->reg - FP0 + 16); | |
1720 | break; | |
1721 | default: | |
1722 | abort (); | |
1723 | } | |
1724 | opP->mode = REGLST; | |
1725 | } | |
1726 | } | |
1727 | else if (opP->mode == CONTROL) | |
1728 | { | |
1729 | if (s[1] != '8') | |
1730 | losing++; | |
1731 | else | |
1732 | { | |
1733 | switch (opP->reg) | |
1734 | { | |
1735 | case FPI: | |
1736 | opP->mask = 1 << 24; | |
1737 | break; | |
1738 | case FPS: | |
1739 | opP->mask = 1 << 25; | |
1740 | break; | |
1741 | case FPC: | |
1742 | opP->mask = 1 << 26; | |
1743 | break; | |
1744 | default: | |
1745 | losing++; | |
1746 | break; | |
1747 | } | |
1748 | opP->mode = REGLST; | |
1749 | } | |
1750 | } | |
1751 | else if (opP->mode != REGLST) | |
1752 | losing++; | |
1753 | else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0) | |
1754 | losing++; | |
1755 | else if (s[1] == '3' && (opP->mask & 0x7000000) != 0) | |
1756 | losing++; | |
1757 | break; | |
1758 | ||
1759 | case 'M': | |
1760 | if (opP->mode != IMMED) | |
1761 | losing++; | |
1762 | else if (opP->disp.exp.X_op != O_constant | |
1763 | || ! issbyte (opP->disp.exp.X_add_number)) | |
1764 | losing++; | |
1765 | else if (! m68k_quick | |
1766 | && instring[3] != 'q' | |
1767 | && instring[4] != 'q') | |
1768 | losing++; | |
1769 | break; | |
1770 | ||
1771 | case 'O': | |
1772 | if (opP->mode != DREG | |
1773 | && opP->mode != IMMED | |
1774 | && opP->mode != ABSL) | |
1775 | losing++; | |
1776 | break; | |
1777 | ||
1778 | case 'Q': | |
1779 | if (opP->mode != IMMED) | |
1780 | losing++; | |
1781 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 | 1782 | || TRUNC (opP->disp.exp.X_add_number) - 1 > 7) |
252b5132 RH |
1783 | losing++; |
1784 | else if (! m68k_quick | |
1785 | && (strncmp (instring, "add", 3) == 0 | |
1786 | || strncmp (instring, "sub", 3) == 0) | |
1787 | && instring[3] != 'q') | |
1788 | losing++; | |
1789 | break; | |
1790 | ||
1791 | case 'R': | |
1792 | if (opP->mode != DREG && opP->mode != AREG) | |
1793 | losing++; | |
1794 | break; | |
1795 | ||
1796 | case 'r': | |
1797 | if (opP->mode != AINDR | |
1798 | && (opP->mode != BASE | |
1799 | || (opP->reg != 0 | |
1800 | && opP->reg != ZADDR0) | |
1801 | || opP->disp.exp.X_op != O_absent | |
1802 | || ((opP->index.reg < DATA0 | |
1803 | || opP->index.reg > DATA7) | |
1804 | && (opP->index.reg < ADDR0 | |
1805 | || opP->index.reg > ADDR7)) | |
1806 | || opP->index.size != SIZE_UNSPEC | |
1807 | || opP->index.scale != 1)) | |
1808 | losing++; | |
1809 | break; | |
1810 | ||
1811 | case 's': | |
1812 | if (opP->mode != CONTROL | |
1813 | || ! (opP->reg == FPI | |
1814 | || opP->reg == FPS | |
1815 | || opP->reg == FPC)) | |
1816 | losing++; | |
1817 | break; | |
1818 | ||
1819 | case 'S': | |
1820 | if (opP->mode != CONTROL || opP->reg != SR) | |
1821 | losing++; | |
1822 | break; | |
1823 | ||
1824 | case 't': | |
1825 | if (opP->mode != IMMED) | |
1826 | losing++; | |
1827 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 | 1828 | || TRUNC (opP->disp.exp.X_add_number) > 7) |
252b5132 RH |
1829 | losing++; |
1830 | break; | |
1831 | ||
1832 | case 'U': | |
1833 | if (opP->mode != CONTROL || opP->reg != USP) | |
1834 | losing++; | |
1835 | break; | |
1836 | ||
3e602632 NC |
1837 | case 'x': |
1838 | if (opP->mode != IMMED) | |
1839 | losing++; | |
1840 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 AM |
1841 | || (TRUNC (opP->disp.exp.X_add_number) != 0xffffffff |
1842 | && TRUNC (opP->disp.exp.X_add_number) - 1 > 6)) | |
3e602632 NC |
1843 | losing++; |
1844 | break; | |
1845 | ||
252b5132 RH |
1846 | /* JF these are out of order. We could put them |
1847 | in order if we were willing to put up with | |
1848 | bunches of #ifdef m68851s in the code. | |
1849 | ||
1850 | Don't forget that you need these operands | |
1851 | to use 68030 MMU instructions. */ | |
1852 | #ifndef NO_68851 | |
36759679 | 1853 | /* Memory addressing mode used by pflushr. */ |
252b5132 RH |
1854 | case '|': |
1855 | if (opP->mode == CONTROL | |
1856 | || opP->mode == FPREG | |
1857 | || opP->mode == DREG | |
1858 | || opP->mode == AREG | |
1859 | || opP->mode == REGLST) | |
1860 | losing++; | |
1861 | /* We should accept immediate operands, but they | |
1862 | supposedly have to be quad word, and we don't | |
1863 | handle that. I would like to see what a Motorola | |
1864 | assembler does before doing something here. */ | |
1865 | if (opP->mode == IMMED) | |
1866 | losing++; | |
1867 | break; | |
1868 | ||
1869 | case 'f': | |
1870 | if (opP->mode != CONTROL | |
1871 | || (opP->reg != SFC && opP->reg != DFC)) | |
1872 | losing++; | |
1873 | break; | |
1874 | ||
1875 | case '0': | |
1876 | if (opP->mode != CONTROL || opP->reg != TC) | |
1877 | losing++; | |
1878 | break; | |
1879 | ||
1880 | case '1': | |
1881 | if (opP->mode != CONTROL || opP->reg != AC) | |
1882 | losing++; | |
1883 | break; | |
1884 | ||
1885 | case '2': | |
1886 | if (opP->mode != CONTROL | |
1887 | || (opP->reg != CAL | |
1888 | && opP->reg != VAL | |
1889 | && opP->reg != SCC)) | |
1890 | losing++; | |
1891 | break; | |
1892 | ||
1893 | case 'V': | |
1894 | if (opP->mode != CONTROL | |
1895 | || opP->reg != VAL) | |
1896 | losing++; | |
1897 | break; | |
1898 | ||
1899 | case 'W': | |
1900 | if (opP->mode != CONTROL | |
1901 | || (opP->reg != DRP | |
1902 | && opP->reg != SRP | |
1903 | && opP->reg != CRP)) | |
1904 | losing++; | |
1905 | break; | |
1906 | ||
3e602632 NC |
1907 | case 'w': |
1908 | switch (opP->mode) | |
1909 | { | |
1910 | case IMMED: | |
1911 | case ABSL: | |
1912 | case AREG: | |
1913 | case DREG: | |
1914 | case FPREG: | |
1915 | case CONTROL: | |
1916 | case POST: | |
1917 | case PRE: | |
1918 | case REGLST: | |
1919 | losing++; | |
1920 | break; | |
1921 | default: | |
1922 | break; | |
1923 | } | |
1924 | break; | |
1925 | ||
252b5132 RH |
1926 | case 'X': |
1927 | if (opP->mode != CONTROL | |
1928 | || (!(opP->reg >= BAD && opP->reg <= BAD + 7) | |
1929 | && !(opP->reg >= BAC && opP->reg <= BAC + 7))) | |
1930 | losing++; | |
1931 | break; | |
1932 | ||
1933 | case 'Y': | |
1934 | if (opP->mode != CONTROL || opP->reg != PSR) | |
1935 | losing++; | |
1936 | break; | |
1937 | ||
1938 | case 'Z': | |
1939 | if (opP->mode != CONTROL || opP->reg != PCSR) | |
1940 | losing++; | |
1941 | break; | |
1942 | #endif | |
1943 | case 'c': | |
1944 | if (opP->mode != CONTROL | |
1945 | || (opP->reg != NC | |
1946 | && opP->reg != IC | |
1947 | && opP->reg != DC | |
1948 | && opP->reg != BC)) | |
36759679 | 1949 | losing++; |
252b5132 RH |
1950 | break; |
1951 | ||
1952 | case '_': | |
1953 | if (opP->mode != ABSL) | |
1954 | ++losing; | |
1955 | break; | |
1956 | ||
6da466c7 ILT |
1957 | case 'u': |
1958 | if (opP->reg < DATA0L || opP->reg > ADDR7U) | |
1959 | losing++; | |
1960 | /* FIXME: kludge instead of fixing parser: | |
1961 | upper/lower registers are *not* CONTROL | |
92774660 | 1962 | registers, but ordinary ones. */ |
6da466c7 ILT |
1963 | if ((opP->reg >= DATA0L && opP->reg <= DATA7L) |
1964 | || (opP->reg >= DATA0U && opP->reg <= DATA7U)) | |
1965 | opP->mode = DREG; | |
1966 | else | |
1967 | opP->mode = AREG; | |
1968 | break; | |
1969 | ||
3e602632 NC |
1970 | case 'y': |
1971 | if (!(opP->mode == AINDR | |
31302357 AS |
1972 | || (opP->mode == DISP |
1973 | && !(opP->reg == PC || opP->reg == ZPC)))) | |
3e602632 NC |
1974 | losing++; |
1975 | break; | |
1976 | ||
1977 | case 'z': | |
1978 | if (!(opP->mode == AINDR || opP->mode == DISP)) | |
1979 | losing++; | |
1980 | break; | |
1981 | ||
252b5132 RH |
1982 | default: |
1983 | abort (); | |
36759679 | 1984 | } |
252b5132 RH |
1985 | |
1986 | if (losing) | |
1987 | break; | |
36759679 | 1988 | } |
03b13e59 NC |
1989 | |
1990 | /* Since we have found the correct instruction, copy | |
1991 | in the modifications that we may have made. */ | |
1992 | if (!losing) | |
1993 | for (i = 0; i < opsfound; i++) | |
1994 | the_ins.operands[i] = operands_backup[i]; | |
36759679 | 1995 | } |
252b5132 RH |
1996 | |
1997 | if (!losing) | |
36759679 | 1998 | break; |
252b5132 RH |
1999 | |
2000 | opcode = opcode->m_next; | |
2001 | ||
2002 | if (!opcode) | |
2003 | { | |
2004 | if (ok_arch | |
2005 | && !(ok_arch & current_architecture)) | |
2006 | { | |
6d89cc8f NS |
2007 | const struct m68k_cpu *cpu; |
2008 | int any = 0; | |
2009 | size_t space = 400; | |
2010 | char *buf = xmalloc (space + 1); | |
2011 | size_t len; | |
2012 | int paren = 1; | |
2013 | ||
2014 | the_ins.error = buf; | |
2015 | /* Make sure there's a NUL at the end of the buffer -- strncpy | |
2016 | won't write one when it runs out of buffer */ | |
2017 | buf[space] = 0; | |
2018 | #define APPEND(STRING) \ | |
2019 | (strncpy (buf, STRING, space), len = strlen (buf), buf += len, space -= len) | |
2020 | ||
2021 | APPEND (_("invalid instruction for this architecture; needs ")); | |
252b5132 RH |
2022 | switch (ok_arch) |
2023 | { | |
6b6e92f4 | 2024 | case mcfisa_a: |
6d89cc8f | 2025 | APPEND (_("ColdFire ISA_A")); |
6b6e92f4 NC |
2026 | break; |
2027 | case mcfhwdiv: | |
6d89cc8f | 2028 | APPEND (_("ColdFire hardware divide")); |
6b6e92f4 NC |
2029 | break; |
2030 | case mcfisa_aa: | |
6d89cc8f | 2031 | APPEND (_("ColdFire ISA_A+")); |
6b6e92f4 NC |
2032 | break; |
2033 | case mcfisa_b: | |
6d89cc8f | 2034 | APPEND (_("ColdFire ISA_B")); |
6b6e92f4 | 2035 | break; |
3e602632 | 2036 | case cfloat: |
6d89cc8f | 2037 | APPEND (_("ColdFire fpu")); |
3e602632 | 2038 | break; |
252b5132 | 2039 | case mfloat: |
6d89cc8f | 2040 | APPEND (_("M68K fpu")); |
252b5132 RH |
2041 | break; |
2042 | case mmmu: | |
6d89cc8f | 2043 | APPEND (_("M68K mmu")); |
252b5132 RH |
2044 | break; |
2045 | case m68020up: | |
6d89cc8f | 2046 | APPEND (_("68020 or higher")); |
252b5132 RH |
2047 | break; |
2048 | case m68000up: | |
6d89cc8f | 2049 | APPEND (_("68000 or higher")); |
252b5132 RH |
2050 | break; |
2051 | case m68010up: | |
6d89cc8f | 2052 | APPEND (_("68010 or higher")); |
252b5132 RH |
2053 | break; |
2054 | default: | |
6d89cc8f NS |
2055 | paren = 0; |
2056 | } | |
2057 | if (paren) | |
2058 | APPEND (" ("); | |
6b6e92f4 | 2059 | |
6d89cc8f NS |
2060 | for (cpu = m68k_cpus; cpu->name; cpu++) |
2061 | if (!cpu->alias && (cpu->arch & ok_arch)) | |
2062 | { | |
2063 | const struct m68k_cpu *alias; | |
2064 | ||
2065 | if (any) | |
2066 | APPEND (", "); | |
2067 | any = 0; | |
2068 | APPEND (cpu->name); | |
2069 | APPEND (" ["); | |
2070 | if (cpu != m68k_cpus) | |
2071 | for (alias = cpu - 1; alias->alias; alias--) | |
2072 | { | |
2073 | if (any) | |
2074 | APPEND (", "); | |
2075 | APPEND (alias->name); | |
2076 | any = 1; | |
2077 | } | |
2078 | for (alias = cpu + 1; alias->alias; alias++) | |
252b5132 | 2079 | { |
6d89cc8f NS |
2080 | if (any) |
2081 | APPEND (", "); | |
2082 | APPEND (alias->name); | |
2083 | any = 1; | |
252b5132 | 2084 | } |
6d89cc8f NS |
2085 | |
2086 | APPEND ("]"); | |
2087 | any = 1; | |
252b5132 | 2088 | } |
6d89cc8f NS |
2089 | if (paren) |
2090 | APPEND (")"); | |
2091 | #undef APPEND | |
2092 | if (!space) | |
2093 | { | |
2094 | /* we ran out of space, so replace the end of the list | |
2095 | with ellipsis. */ | |
2096 | buf -= 4; | |
2097 | while (*buf != ' ') | |
2098 | buf--; | |
2099 | strcpy (buf, " ..."); | |
252b5132 | 2100 | } |
252b5132 RH |
2101 | } |
2102 | else | |
2103 | the_ins.error = _("operands mismatch"); | |
2104 | return; | |
36759679 | 2105 | } |
252b5132 RH |
2106 | |
2107 | losing = 0; | |
2108 | } | |
2109 | ||
36759679 | 2110 | /* Now assemble it. */ |
252b5132 RH |
2111 | the_ins.args = opcode->m_operands; |
2112 | the_ins.numargs = opcode->m_opnum; | |
2113 | the_ins.numo = opcode->m_codenum; | |
2114 | the_ins.opcode[0] = getone (opcode); | |
2115 | the_ins.opcode[1] = gettwo (opcode); | |
2116 | ||
2117 | for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) | |
2118 | { | |
2119 | /* This switch is a doozy. | |
31302357 | 2120 | Watch the first step; its a big one! */ |
252b5132 RH |
2121 | switch (s[0]) |
2122 | { | |
2123 | ||
2124 | case '*': | |
2125 | case '~': | |
2126 | case '%': | |
2127 | case ';': | |
2128 | case '@': | |
2129 | case '!': | |
2130 | case '&': | |
2131 | case '$': | |
2132 | case '?': | |
2133 | case '/': | |
2134 | case '<': | |
2135 | case '>': | |
3e602632 | 2136 | case 'b': |
252b5132 RH |
2137 | case 'm': |
2138 | case 'n': | |
2139 | case 'o': | |
2140 | case 'p': | |
2141 | case 'q': | |
2142 | case 'v': | |
3e602632 NC |
2143 | case 'w': |
2144 | case 'y': | |
2145 | case 'z': | |
fd99574b | 2146 | case '4': |
252b5132 RH |
2147 | #ifndef NO_68851 |
2148 | case '|': | |
2149 | #endif | |
2150 | switch (opP->mode) | |
2151 | { | |
2152 | case IMMED: | |
2153 | tmpreg = 0x3c; /* 7.4 */ | |
2154 | if (strchr ("bwl", s[1])) | |
3e602632 | 2155 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2156 | else |
2157 | nextword = get_num (&opP->disp, 0); | |
2158 | if (isvar (&opP->disp)) | |
2159 | add_fix (s[1], &opP->disp, 0, 0); | |
2160 | switch (s[1]) | |
2161 | { | |
2162 | case 'b': | |
2163 | if (!isbyte (nextword)) | |
2164 | opP->error = _("operand out of range"); | |
2165 | addword (nextword); | |
2166 | baseo = 0; | |
2167 | break; | |
2168 | case 'w': | |
2169 | if (!isword (nextword)) | |
2170 | opP->error = _("operand out of range"); | |
2171 | addword (nextword); | |
2172 | baseo = 0; | |
2173 | break; | |
2174 | case 'W': | |
2175 | if (!issword (nextword)) | |
2176 | opP->error = _("operand out of range"); | |
2177 | addword (nextword); | |
2178 | baseo = 0; | |
2179 | break; | |
2180 | case 'l': | |
2181 | addword (nextword >> 16); | |
2182 | addword (nextword); | |
2183 | baseo = 0; | |
2184 | break; | |
2185 | ||
2186 | case 'f': | |
2187 | baseo = 2; | |
2188 | outro = 8; | |
2189 | break; | |
2190 | case 'F': | |
2191 | baseo = 4; | |
2192 | outro = 11; | |
2193 | break; | |
2194 | case 'x': | |
2195 | baseo = 6; | |
2196 | outro = 15; | |
2197 | break; | |
2198 | case 'p': | |
2199 | baseo = 6; | |
2200 | outro = -1; | |
2201 | break; | |
2202 | default: | |
2203 | abort (); | |
2204 | } | |
2205 | if (!baseo) | |
2206 | break; | |
2207 | ||
36759679 | 2208 | /* We gotta put out some float. */ |
252b5132 RH |
2209 | if (op (&opP->disp) != O_big) |
2210 | { | |
2211 | valueT val; | |
2212 | int gencnt; | |
2213 | ||
2214 | /* Can other cases happen here? */ | |
2215 | if (op (&opP->disp) != O_constant) | |
2216 | abort (); | |
2217 | ||
2218 | val = (valueT) offs (&opP->disp); | |
2219 | gencnt = 0; | |
2220 | do | |
2221 | { | |
2222 | generic_bignum[gencnt] = (LITTLENUM_TYPE) val; | |
2223 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
2224 | ++gencnt; | |
2225 | } | |
2226 | while (val != 0); | |
2227 | offs (&opP->disp) = gencnt; | |
2228 | } | |
2229 | if (offs (&opP->disp) > 0) | |
2230 | { | |
2231 | if (offs (&opP->disp) > baseo) | |
2232 | { | |
2233 | as_warn (_("Bignum too big for %c format; truncated"), | |
2234 | s[1]); | |
2235 | offs (&opP->disp) = baseo; | |
2236 | } | |
2237 | baseo -= offs (&opP->disp); | |
2238 | while (baseo--) | |
2239 | addword (0); | |
2240 | for (wordp = generic_bignum + offs (&opP->disp) - 1; | |
2241 | offs (&opP->disp)--; | |
2242 | --wordp) | |
2243 | addword (*wordp); | |
2244 | break; | |
2245 | } | |
2246 | gen_to_words (words, baseo, (long) outro); | |
2247 | for (wordp = words; baseo--; wordp++) | |
2248 | addword (*wordp); | |
2249 | break; | |
2250 | case DREG: | |
2251 | tmpreg = opP->reg - DATA; /* 0.dreg */ | |
2252 | break; | |
2253 | case AREG: | |
2254 | tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */ | |
2255 | break; | |
2256 | case AINDR: | |
2257 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2258 | break; | |
2259 | case ADEC: | |
2260 | tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */ | |
2261 | break; | |
2262 | case AINC: | |
2263 | tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */ | |
2264 | break; | |
2265 | case DISP: | |
2266 | ||
3e602632 | 2267 | nextword = get_num (&opP->disp, 90); |
252b5132 | 2268 | |
580b9172 NC |
2269 | /* Convert mode 5 addressing with a zero offset into |
2270 | mode 2 addressing to reduce the instruction size by a | |
2271 | word. */ | |
2272 | if (! isvar (&opP->disp) | |
2273 | && (nextword == 0) | |
2274 | && (opP->disp.size == SIZE_UNSPEC) | |
2275 | && (opP->reg >= ADDR0) | |
2276 | && (opP->reg <= ADDR7)) | |
2277 | { | |
2278 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2279 | break; | |
2280 | } | |
2281 | ||
252b5132 RH |
2282 | if (opP->reg == PC |
2283 | && ! isvar (&opP->disp) | |
2284 | && m68k_abspcadd) | |
2285 | { | |
2286 | opP->disp.exp.X_op = O_symbol; | |
252b5132 RH |
2287 | opP->disp.exp.X_add_symbol = |
2288 | section_symbol (absolute_section); | |
252b5132 RH |
2289 | } |
2290 | ||
36759679 | 2291 | /* Force into index mode. Hope this works. */ |
252b5132 RH |
2292 | |
2293 | /* We do the first bit for 32-bit displacements, and the | |
2294 | second bit for 16 bit ones. It is possible that we | |
2295 | should make the default be WORD instead of LONG, but | |
2296 | I think that'd break GCC, so we put up with a little | |
2297 | inefficiency for the sake of working output. */ | |
2298 | ||
2299 | if (!issword (nextword) | |
2300 | || (isvar (&opP->disp) | |
2301 | && ((opP->disp.size == SIZE_UNSPEC | |
2302 | && flag_short_refs == 0 | |
2303 | && cpu_of_arch (current_architecture) >= m68020 | |
6da466c7 | 2304 | && ! arch_coldfire_p (current_architecture)) |
252b5132 RH |
2305 | || opP->disp.size == SIZE_LONG))) |
2306 | { | |
2307 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2308 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2309 | opP->error = |
2310 | _("displacement too large for this architecture; needs 68020 or higher"); | |
2311 | if (opP->reg == PC) | |
2312 | tmpreg = 0x3B; /* 7.3 */ | |
2313 | else | |
2314 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2315 | if (isvar (&opP->disp)) | |
2316 | { | |
2317 | if (opP->reg == PC) | |
2318 | { | |
2319 | if (opP->disp.size == SIZE_LONG | |
2320 | #ifdef OBJ_ELF | |
2321 | /* If the displacement needs pic | |
2322 | relocation it cannot be relaxed. */ | |
2323 | || opP->disp.pic_reloc != pic_none | |
2324 | #endif | |
2325 | ) | |
2326 | { | |
2327 | addword (0x0170); | |
2328 | add_fix ('l', &opP->disp, 1, 2); | |
2329 | } | |
2330 | else | |
2331 | { | |
2332 | add_frag (adds (&opP->disp), | |
bd17c2c3 | 2333 | SEXT (offs (&opP->disp)), |
151337e8 | 2334 | TAB (PCREL1632, SZ_UNDEF)); |
252b5132 RH |
2335 | break; |
2336 | } | |
2337 | } | |
2338 | else | |
2339 | { | |
2340 | addword (0x0170); | |
2341 | add_fix ('l', &opP->disp, 0, 0); | |
2342 | } | |
2343 | } | |
2344 | else | |
2345 | addword (0x0170); | |
2346 | addword (nextword >> 16); | |
2347 | } | |
2348 | else | |
2349 | { | |
2350 | if (opP->reg == PC) | |
2351 | tmpreg = 0x3A; /* 7.2 */ | |
2352 | else | |
2353 | tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */ | |
2354 | ||
2355 | if (isvar (&opP->disp)) | |
2356 | { | |
2357 | if (opP->reg == PC) | |
2358 | { | |
2359 | add_fix ('w', &opP->disp, 1, 0); | |
2360 | } | |
2361 | else | |
2362 | add_fix ('w', &opP->disp, 0, 0); | |
2363 | } | |
2364 | } | |
2365 | addword (nextword); | |
2366 | break; | |
2367 | ||
2368 | case POST: | |
2369 | case PRE: | |
2370 | case BASE: | |
2371 | nextword = 0; | |
3e602632 | 2372 | baseo = get_num (&opP->disp, 90); |
252b5132 | 2373 | if (opP->mode == POST || opP->mode == PRE) |
3e602632 | 2374 | outro = get_num (&opP->odisp, 90); |
252b5132 RH |
2375 | /* Figure out the `addressing mode'. |
2376 | Also turn on the BASE_DISABLE bit, if needed. */ | |
2377 | if (opP->reg == PC || opP->reg == ZPC) | |
2378 | { | |
2379 | tmpreg = 0x3b; /* 7.3 */ | |
2380 | if (opP->reg == ZPC) | |
2381 | nextword |= 0x80; | |
2382 | } | |
2383 | else if (opP->reg == 0) | |
2384 | { | |
2385 | nextword |= 0x80; | |
2386 | tmpreg = 0x30; /* 6.garbage */ | |
2387 | } | |
2388 | else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7) | |
2389 | { | |
2390 | nextword |= 0x80; | |
2391 | tmpreg = 0x30 + opP->reg - ZADDR0; | |
2392 | } | |
2393 | else | |
2394 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2395 | ||
2396 | siz1 = opP->disp.size; | |
2397 | if (opP->mode == POST || opP->mode == PRE) | |
2398 | siz2 = opP->odisp.size; | |
2399 | else | |
2400 | siz2 = SIZE_UNSPEC; | |
2401 | ||
36759679 | 2402 | /* Index register stuff. */ |
252b5132 RH |
2403 | if (opP->index.reg != 0 |
2404 | && opP->index.reg >= DATA | |
2405 | && opP->index.reg <= ADDR7) | |
2406 | { | |
2407 | nextword |= (opP->index.reg - DATA) << 12; | |
2408 | ||
2409 | if (opP->index.size == SIZE_LONG | |
2410 | || (opP->index.size == SIZE_UNSPEC | |
2411 | && m68k_index_width_default == SIZE_LONG)) | |
2412 | nextword |= 0x800; | |
2413 | ||
92774660 | 2414 | if ((opP->index.scale != 1 |
252b5132 | 2415 | && cpu_of_arch (current_architecture) < m68020) |
92774660 | 2416 | || (opP->index.scale == 8 |
3e602632 | 2417 | && (arch_coldfire_p (current_architecture) |
6b6e92f4 | 2418 | && !arch_coldfire_fpu (current_architecture)))) |
252b5132 RH |
2419 | { |
2420 | opP->error = | |
2421 | _("scale factor invalid on this architecture; needs cpu32 or 68020 or higher"); | |
2422 | } | |
2423 | ||
6da466c7 ILT |
2424 | if (arch_coldfire_p (current_architecture) |
2425 | && opP->index.size == SIZE_WORD) | |
2426 | opP->error = _("invalid index size for coldfire"); | |
2427 | ||
252b5132 RH |
2428 | switch (opP->index.scale) |
2429 | { | |
2430 | case 1: | |
2431 | break; | |
2432 | case 2: | |
2433 | nextword |= 0x200; | |
2434 | break; | |
2435 | case 4: | |
2436 | nextword |= 0x400; | |
2437 | break; | |
2438 | case 8: | |
2439 | nextword |= 0x600; | |
2440 | break; | |
2441 | default: | |
2442 | abort (); | |
2443 | } | |
2444 | /* IF its simple, | |
2445 | GET US OUT OF HERE! */ | |
2446 | ||
2447 | /* Must be INDEX, with an index register. Address | |
2448 | register cannot be ZERO-PC, and either :b was | |
2449 | forced, or we know it will fit. For a 68000 or | |
2450 | 68010, force this mode anyways, because the | |
2451 | larger modes aren't supported. */ | |
2452 | if (opP->mode == BASE | |
2453 | && ((opP->reg >= ADDR0 | |
2454 | && opP->reg <= ADDR7) | |
2455 | || opP->reg == PC)) | |
2456 | { | |
2457 | if (siz1 == SIZE_BYTE | |
2458 | || cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2459 | || arch_coldfire_p (current_architecture) |
252b5132 RH |
2460 | || (siz1 == SIZE_UNSPEC |
2461 | && ! isvar (&opP->disp) | |
2462 | && issbyte (baseo))) | |
2463 | { | |
2464 | nextword += baseo & 0xff; | |
2465 | addword (nextword); | |
2466 | if (isvar (&opP->disp)) | |
2467 | { | |
2468 | /* Do a byte relocation. If it doesn't | |
2469 | fit (possible on m68000) let the | |
2470 | fixup processing complain later. */ | |
2471 | if (opP->reg == PC) | |
2472 | add_fix ('B', &opP->disp, 1, 1); | |
2473 | else | |
2474 | add_fix ('B', &opP->disp, 0, 0); | |
2475 | } | |
2476 | else if (siz1 != SIZE_BYTE) | |
2477 | { | |
2478 | if (siz1 != SIZE_UNSPEC) | |
2479 | as_warn (_("Forcing byte displacement")); | |
2480 | if (! issbyte (baseo)) | |
2481 | opP->error = _("byte displacement out of range"); | |
2482 | } | |
2483 | ||
2484 | break; | |
2485 | } | |
2486 | else if (siz1 == SIZE_UNSPEC | |
2487 | && opP->reg == PC | |
2488 | && isvar (&opP->disp) | |
2489 | && subs (&opP->disp) == NULL | |
2490 | #ifdef OBJ_ELF | |
2491 | /* If the displacement needs pic | |
2492 | relocation it cannot be relaxed. */ | |
2493 | && opP->disp.pic_reloc == pic_none | |
2494 | #endif | |
2495 | ) | |
2496 | { | |
2497 | /* The code in md_convert_frag_1 needs to be | |
2498 | able to adjust nextword. Call frag_grow | |
2499 | to ensure that we have enough space in | |
2500 | the frag obstack to make all the bytes | |
2501 | contiguous. */ | |
2502 | frag_grow (14); | |
8a104df9 KH |
2503 | nextword += baseo & 0xff; |
2504 | addword (nextword); | |
bd17c2c3 AM |
2505 | add_frag (adds (&opP->disp), |
2506 | SEXT (offs (&opP->disp)), | |
8a104df9 | 2507 | TAB (PCINDEX, SZ_UNDEF)); |
252b5132 RH |
2508 | |
2509 | break; | |
8a104df9 | 2510 | } |
252b5132 RH |
2511 | } |
2512 | } | |
2513 | else | |
2514 | { | |
36759679 | 2515 | nextword |= 0x40; /* No index reg. */ |
252b5132 RH |
2516 | if (opP->index.reg >= ZDATA0 |
2517 | && opP->index.reg <= ZDATA7) | |
2518 | nextword |= (opP->index.reg - ZDATA0) << 12; | |
2519 | else if (opP->index.reg >= ZADDR0 | |
2520 | || opP->index.reg <= ZADDR7) | |
2521 | nextword |= (opP->index.reg - ZADDR0 + 8) << 12; | |
2522 | } | |
2523 | ||
2524 | /* It isn't simple. */ | |
2525 | ||
2526 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2527 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2528 | opP->error = |
2529 | _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2530 | ||
2531 | nextword |= 0x100; | |
2532 | /* If the guy specified a width, we assume that it is | |
2533 | wide enough. Maybe it isn't. If so, we lose. */ | |
2534 | switch (siz1) | |
2535 | { | |
2536 | case SIZE_UNSPEC: | |
2537 | if (isvar (&opP->disp) | |
2538 | ? m68k_rel32 | |
2539 | : ! issword (baseo)) | |
2540 | { | |
2541 | siz1 = SIZE_LONG; | |
2542 | nextword |= 0x30; | |
2543 | } | |
2544 | else if (! isvar (&opP->disp) && baseo == 0) | |
2545 | nextword |= 0x10; | |
2546 | else | |
2547 | { | |
2548 | nextword |= 0x20; | |
2549 | siz1 = SIZE_WORD; | |
2550 | } | |
2551 | break; | |
2552 | case SIZE_BYTE: | |
2553 | as_warn (_(":b not permitted; defaulting to :w")); | |
2554 | /* Fall through. */ | |
2555 | case SIZE_WORD: | |
2556 | nextword |= 0x20; | |
2557 | break; | |
2558 | case SIZE_LONG: | |
2559 | nextword |= 0x30; | |
2560 | break; | |
2561 | } | |
2562 | ||
67c1ffbe | 2563 | /* Figure out inner displacement stuff. */ |
252b5132 RH |
2564 | if (opP->mode == POST || opP->mode == PRE) |
2565 | { | |
2566 | if (cpu_of_arch (current_architecture) & cpu32) | |
2567 | opP->error = _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2568 | switch (siz2) | |
2569 | { | |
2570 | case SIZE_UNSPEC: | |
2571 | if (isvar (&opP->odisp) | |
2572 | ? m68k_rel32 | |
2573 | : ! issword (outro)) | |
2574 | { | |
2575 | siz2 = SIZE_LONG; | |
2576 | nextword |= 0x3; | |
2577 | } | |
2578 | else if (! isvar (&opP->odisp) && outro == 0) | |
2579 | nextword |= 0x1; | |
2580 | else | |
2581 | { | |
2582 | nextword |= 0x2; | |
2583 | siz2 = SIZE_WORD; | |
2584 | } | |
2585 | break; | |
2586 | case 1: | |
2587 | as_warn (_(":b not permitted; defaulting to :w")); | |
2588 | /* Fall through. */ | |
2589 | case 2: | |
2590 | nextword |= 0x2; | |
2591 | break; | |
2592 | case 3: | |
2593 | nextword |= 0x3; | |
2594 | break; | |
2595 | } | |
2596 | if (opP->mode == POST | |
2597 | && (nextword & 0x40) == 0) | |
2598 | nextword |= 0x04; | |
2599 | } | |
2600 | addword (nextword); | |
2601 | ||
2602 | if (siz1 != SIZE_UNSPEC && isvar (&opP->disp)) | |
2603 | { | |
2604 | if (opP->reg == PC || opP->reg == ZPC) | |
2605 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2); | |
2606 | else | |
2607 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0); | |
2608 | } | |
2609 | if (siz1 == SIZE_LONG) | |
2610 | addword (baseo >> 16); | |
2611 | if (siz1 != SIZE_UNSPEC) | |
2612 | addword (baseo); | |
2613 | ||
2614 | if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp)) | |
2615 | add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0); | |
2616 | if (siz2 == SIZE_LONG) | |
2617 | addword (outro >> 16); | |
2618 | if (siz2 != SIZE_UNSPEC) | |
2619 | addword (outro); | |
2620 | ||
2621 | break; | |
2622 | ||
2623 | case ABSL: | |
3e602632 | 2624 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2625 | switch (opP->disp.size) |
2626 | { | |
2627 | default: | |
2628 | abort (); | |
2629 | case SIZE_UNSPEC: | |
2630 | if (!isvar (&opP->disp) && issword (offs (&opP->disp))) | |
2631 | { | |
2632 | tmpreg = 0x38; /* 7.0 */ | |
2633 | addword (nextword); | |
2634 | break; | |
2635 | } | |
252b5132 RH |
2636 | if (isvar (&opP->disp) |
2637 | && !subs (&opP->disp) | |
2638 | && adds (&opP->disp) | |
2639 | #ifdef OBJ_ELF | |
2640 | /* If the displacement needs pic relocation it | |
2641 | cannot be relaxed. */ | |
2642 | && opP->disp.pic_reloc == pic_none | |
2643 | #endif | |
252b5132 RH |
2644 | && !flag_long_jumps |
2645 | && !strchr ("~%&$?", s[0])) | |
2646 | { | |
2647 | tmpreg = 0x3A; /* 7.2 */ | |
2648 | add_frag (adds (&opP->disp), | |
bd17c2c3 | 2649 | SEXT (offs (&opP->disp)), |
151337e8 | 2650 | TAB (ABSTOPCREL, SZ_UNDEF)); |
252b5132 RH |
2651 | break; |
2652 | } | |
36759679 | 2653 | /* Fall through into long. */ |
252b5132 RH |
2654 | case SIZE_LONG: |
2655 | if (isvar (&opP->disp)) | |
2656 | add_fix ('l', &opP->disp, 0, 0); | |
2657 | ||
2658 | tmpreg = 0x39;/* 7.1 mode */ | |
2659 | addword (nextword >> 16); | |
2660 | addword (nextword); | |
2661 | break; | |
2662 | ||
2663 | case SIZE_BYTE: | |
2664 | as_bad (_("unsupported byte value; use a different suffix")); | |
2665 | /* Fall through. */ | |
36759679 NC |
2666 | |
2667 | case SIZE_WORD: | |
252b5132 RH |
2668 | if (isvar (&opP->disp)) |
2669 | add_fix ('w', &opP->disp, 0, 0); | |
2670 | ||
2671 | tmpreg = 0x38;/* 7.0 mode */ | |
2672 | addword (nextword); | |
2673 | break; | |
2674 | } | |
2675 | break; | |
2676 | case CONTROL: | |
2677 | case FPREG: | |
2678 | default: | |
2679 | as_bad (_("unknown/incorrect operand")); | |
bc805888 | 2680 | /* abort (); */ |
252b5132 | 2681 | } |
fd99574b NC |
2682 | |
2683 | /* If s[0] is '4', then this is for the mac instructions | |
2684 | that can have a trailing_ampersand set. If so, set 0x100 | |
2685 | bit on tmpreg so install_gen_operand can check for it and | |
2686 | set the appropriate bit (word2, bit 5). */ | |
2687 | if (s[0] == '4') | |
2688 | { | |
2689 | if (opP->trailing_ampersand) | |
2690 | tmpreg |= 0x100; | |
2691 | } | |
252b5132 RH |
2692 | install_gen_operand (s[1], tmpreg); |
2693 | break; | |
2694 | ||
2695 | case '#': | |
2696 | case '^': | |
2697 | switch (s[1]) | |
2698 | { /* JF: I hate floating point! */ | |
2699 | case 'j': | |
2700 | tmpreg = 70; | |
2701 | break; | |
2702 | case '8': | |
2703 | tmpreg = 20; | |
2704 | break; | |
2705 | case 'C': | |
2706 | tmpreg = 50; | |
2707 | break; | |
2708 | case '3': | |
2709 | default: | |
3e602632 | 2710 | tmpreg = 90; |
252b5132 RH |
2711 | break; |
2712 | } | |
2713 | tmpreg = get_num (&opP->disp, tmpreg); | |
2714 | if (isvar (&opP->disp)) | |
2715 | add_fix (s[1], &opP->disp, 0, 0); | |
2716 | switch (s[1]) | |
2717 | { | |
2718 | case 'b': /* Danger: These do no check for | |
2719 | certain types of overflow. | |
2720 | user beware! */ | |
2721 | if (!isbyte (tmpreg)) | |
2722 | opP->error = _("out of range"); | |
2723 | insop (tmpreg, opcode); | |
2724 | if (isvar (&opP->disp)) | |
2725 | the_ins.reloc[the_ins.nrel - 1].n = | |
2726 | (opcode->m_codenum) * 2 + 1; | |
2727 | break; | |
2728 | case 'B': | |
2729 | if (!issbyte (tmpreg)) | |
2730 | opP->error = _("out of range"); | |
2731 | the_ins.opcode[the_ins.numo - 1] |= tmpreg & 0xff; | |
2732 | if (isvar (&opP->disp)) | |
2733 | the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1; | |
2734 | break; | |
2735 | case 'w': | |
2736 | if (!isword (tmpreg)) | |
2737 | opP->error = _("out of range"); | |
2738 | insop (tmpreg, opcode); | |
2739 | if (isvar (&opP->disp)) | |
2740 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2741 | break; | |
2742 | case 'W': | |
2743 | if (!issword (tmpreg)) | |
2744 | opP->error = _("out of range"); | |
2745 | insop (tmpreg, opcode); | |
2746 | if (isvar (&opP->disp)) | |
2747 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2748 | break; | |
2749 | case 'l': | |
2750 | /* Because of the way insop works, we put these two out | |
2751 | backwards. */ | |
2752 | insop (tmpreg, opcode); | |
2753 | insop (tmpreg >> 16, opcode); | |
2754 | if (isvar (&opP->disp)) | |
2755 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2756 | break; | |
2757 | case '3': | |
2758 | tmpreg &= 0xFF; | |
2759 | case '8': | |
2760 | case 'C': | |
2761 | case 'j': | |
2762 | install_operand (s[1], tmpreg); | |
2763 | break; | |
2764 | default: | |
2765 | abort (); | |
2766 | } | |
2767 | break; | |
2768 | ||
2769 | case '+': | |
2770 | case '-': | |
2771 | case 'A': | |
2772 | case 'a': | |
2773 | install_operand (s[1], opP->reg - ADDR); | |
2774 | break; | |
2775 | ||
2776 | case 'B': | |
3e602632 | 2777 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2778 | switch (s[1]) |
2779 | { | |
2780 | case 'B': | |
8390138c | 2781 | add_fix ('B', &opP->disp, 1, -1); |
252b5132 RH |
2782 | break; |
2783 | case 'W': | |
2784 | add_fix ('w', &opP->disp, 1, 0); | |
2785 | addword (0); | |
2786 | break; | |
2787 | case 'L': | |
2788 | long_branch: | |
151337e8 | 2789 | if (! HAVE_LONG_BRANCH (current_architecture)) |
81d4177b | 2790 | as_warn (_("Can't use long branches on 68000/68010/5200")); |
151337e8 | 2791 | the_ins.opcode[0] |= 0xff; |
252b5132 RH |
2792 | add_fix ('l', &opP->disp, 1, 0); |
2793 | addword (0); | |
2794 | addword (0); | |
2795 | break; | |
2796 | case 'g': | |
36759679 | 2797 | if (subs (&opP->disp)) /* We can't relax it. */ |
252b5132 RH |
2798 | goto long_branch; |
2799 | ||
2800 | #ifdef OBJ_ELF | |
2801 | /* If the displacement needs pic relocation it cannot be | |
2802 | relaxed. */ | |
2803 | if (opP->disp.pic_reloc != pic_none) | |
2804 | goto long_branch; | |
2805 | #endif | |
252b5132 | 2806 | /* This could either be a symbol, or an absolute |
151337e8 NC |
2807 | address. If it's an absolute address, turn it into |
2808 | an absolute jump right here and keep it out of the | |
2809 | relaxer. */ | |
2810 | if (adds (&opP->disp) == 0) | |
2811 | { | |
2812 | if (the_ins.opcode[0] == 0x6000) /* jbra */ | |
18566f55 | 2813 | the_ins.opcode[0] = 0x4EF9; |
151337e8 | 2814 | else if (the_ins.opcode[0] == 0x6100) /* jbsr */ |
18566f55 | 2815 | the_ins.opcode[0] = 0x4EB9; |
151337e8 NC |
2816 | else /* jCC */ |
2817 | { | |
2818 | the_ins.opcode[0] ^= 0x0100; | |
2819 | the_ins.opcode[0] |= 0x0006; | |
18566f55 | 2820 | addword (0x4EF9); |
151337e8 NC |
2821 | } |
2822 | add_fix ('l', &opP->disp, 0, 0); | |
2823 | addword (0); | |
2824 | addword (0); | |
2825 | break; | |
2826 | } | |
2827 | ||
2828 | /* Now we know it's going into the relaxer. Now figure | |
2829 | out which mode. We try in this order of preference: | |
2830 | long branch, absolute jump, byte/word branches only. */ | |
2831 | if (HAVE_LONG_BRANCH (current_architecture)) | |
bd17c2c3 AM |
2832 | add_frag (adds (&opP->disp), |
2833 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2834 | TAB (BRANCHBWL, SZ_UNDEF)); |
2835 | else if (! flag_keep_pcrel) | |
2836 | { | |
2837 | if ((the_ins.opcode[0] == 0x6000) | |
2838 | || (the_ins.opcode[0] == 0x6100)) | |
bd17c2c3 AM |
2839 | add_frag (adds (&opP->disp), |
2840 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2841 | TAB (BRABSJUNC, SZ_UNDEF)); |
2842 | else | |
bd17c2c3 AM |
2843 | add_frag (adds (&opP->disp), |
2844 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2845 | TAB (BRABSJCOND, SZ_UNDEF)); |
2846 | } | |
252b5132 | 2847 | else |
bd17c2c3 AM |
2848 | add_frag (adds (&opP->disp), |
2849 | SEXT (offs (&opP->disp)), | |
151337e8 | 2850 | TAB (BRANCHBW, SZ_UNDEF)); |
252b5132 RH |
2851 | break; |
2852 | case 'w': | |
2853 | if (isvar (&opP->disp)) | |
2854 | { | |
151337e8 NC |
2855 | /* Check for DBcc instructions. We can relax them, |
2856 | but only if we have long branches and/or absolute | |
2857 | jumps. */ | |
2858 | if (((the_ins.opcode[0] & 0xf0f8) == 0x50c8) | |
2859 | && (HAVE_LONG_BRANCH (current_architecture) | |
2860 | || (! flag_keep_pcrel))) | |
252b5132 | 2861 | { |
151337e8 | 2862 | if (HAVE_LONG_BRANCH (current_architecture)) |
bd17c2c3 AM |
2863 | add_frag (adds (&opP->disp), |
2864 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2865 | TAB (DBCCLBR, SZ_UNDEF)); |
2866 | else | |
bd17c2c3 AM |
2867 | add_frag (adds (&opP->disp), |
2868 | SEXT (offs (&opP->disp)), | |
151337e8 | 2869 | TAB (DBCCABSJ, SZ_UNDEF)); |
252b5132 RH |
2870 | break; |
2871 | } | |
252b5132 RH |
2872 | add_fix ('w', &opP->disp, 1, 0); |
2873 | } | |
2874 | addword (0); | |
2875 | break; | |
36759679 | 2876 | case 'C': /* Fixed size LONG coproc branches. */ |
252b5132 RH |
2877 | add_fix ('l', &opP->disp, 1, 0); |
2878 | addword (0); | |
2879 | addword (0); | |
2880 | break; | |
36759679 | 2881 | case 'c': /* Var size Coprocesssor branches. */ |
151337e8 | 2882 | if (subs (&opP->disp) || (adds (&opP->disp) == 0)) |
252b5132 | 2883 | { |
252b5132 RH |
2884 | the_ins.opcode[the_ins.numo - 1] |= 0x40; |
2885 | add_fix ('l', &opP->disp, 1, 0); | |
2886 | addword (0); | |
2887 | addword (0); | |
2888 | } | |
151337e8 | 2889 | else |
bd17c2c3 AM |
2890 | add_frag (adds (&opP->disp), |
2891 | SEXT (offs (&opP->disp)), | |
151337e8 | 2892 | TAB (FBRANCH, SZ_UNDEF)); |
252b5132 RH |
2893 | break; |
2894 | default: | |
2895 | abort (); | |
2896 | } | |
2897 | break; | |
2898 | ||
36759679 | 2899 | case 'C': /* Ignore it. */ |
252b5132 RH |
2900 | break; |
2901 | ||
36759679 | 2902 | case 'd': /* JF this is a kludge. */ |
252b5132 | 2903 | install_operand ('s', opP->reg - ADDR); |
3e602632 | 2904 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2905 | if (!issword (tmpreg)) |
2906 | { | |
2907 | as_warn (_("Expression out of range, using 0")); | |
2908 | tmpreg = 0; | |
2909 | } | |
2910 | addword (tmpreg); | |
2911 | break; | |
2912 | ||
2913 | case 'D': | |
2914 | install_operand (s[1], opP->reg - DATA); | |
2915 | break; | |
2916 | ||
fd99574b NC |
2917 | case 'e': /* EMAC ACCx, reg/reg. */ |
2918 | install_operand (s[1], opP->reg - ACC); | |
2919 | break; | |
2920 | ||
36759679 | 2921 | case 'E': /* Ignore it. */ |
6da466c7 ILT |
2922 | break; |
2923 | ||
252b5132 RH |
2924 | case 'F': |
2925 | install_operand (s[1], opP->reg - FP0); | |
2926 | break; | |
2927 | ||
fd99574b NC |
2928 | case 'g': /* EMAC ACCEXTx. */ |
2929 | install_operand (s[1], opP->reg - ACCEXT01); | |
2930 | break; | |
2931 | ||
36759679 | 2932 | case 'G': /* Ignore it. */ |
6da466c7 ILT |
2933 | case 'H': |
2934 | break; | |
2935 | ||
252b5132 RH |
2936 | case 'I': |
2937 | tmpreg = opP->reg - COP0; | |
2938 | install_operand (s[1], tmpreg); | |
2939 | break; | |
2940 | ||
fd99574b NC |
2941 | case 'i': /* MAC/EMAC scale factor. */ |
2942 | install_operand (s[1], opP->mode == LSH ? 0x1 : 0x3); | |
2943 | break; | |
2944 | ||
36759679 | 2945 | case 'J': /* JF foo. */ |
252b5132 RH |
2946 | switch (opP->reg) |
2947 | { | |
2948 | case SFC: | |
2949 | tmpreg = 0x000; | |
2950 | break; | |
2951 | case DFC: | |
2952 | tmpreg = 0x001; | |
2953 | break; | |
2954 | case CACR: | |
2955 | tmpreg = 0x002; | |
2956 | break; | |
2957 | case TC: | |
2958 | tmpreg = 0x003; | |
2959 | break; | |
3e602632 | 2960 | case ACR0: |
252b5132 RH |
2961 | case ITT0: |
2962 | tmpreg = 0x004; | |
2963 | break; | |
3e602632 | 2964 | case ACR1: |
252b5132 RH |
2965 | case ITT1: |
2966 | tmpreg = 0x005; | |
2967 | break; | |
3e602632 | 2968 | case ACR2: |
252b5132 RH |
2969 | case DTT0: |
2970 | tmpreg = 0x006; | |
2971 | break; | |
3e602632 | 2972 | case ACR3: |
252b5132 RH |
2973 | case DTT1: |
2974 | tmpreg = 0x007; | |
2975 | break; | |
2976 | case BUSCR: | |
2977 | tmpreg = 0x008; | |
2978 | break; | |
2979 | ||
2980 | case USP: | |
2981 | tmpreg = 0x800; | |
2982 | break; | |
2983 | case VBR: | |
2984 | tmpreg = 0x801; | |
2985 | break; | |
2986 | case CAAR: | |
2987 | tmpreg = 0x802; | |
2988 | break; | |
2989 | case MSP: | |
2990 | tmpreg = 0x803; | |
2991 | break; | |
2992 | case ISP: | |
2993 | tmpreg = 0x804; | |
2994 | break; | |
2995 | case MMUSR: | |
2996 | tmpreg = 0x805; | |
2997 | break; | |
2998 | case URP: | |
2999 | tmpreg = 0x806; | |
3000 | break; | |
3001 | case SRP: | |
3002 | tmpreg = 0x807; | |
3003 | break; | |
3004 | case PCR: | |
3005 | tmpreg = 0x808; | |
3006 | break; | |
3007 | case ROMBAR: | |
3008 | tmpreg = 0xC00; | |
3009 | break; | |
3e602632 NC |
3010 | case ROMBAR1: |
3011 | tmpreg = 0xC01; | |
3012 | break; | |
3013 | case FLASHBAR: | |
252b5132 RH |
3014 | case RAMBAR0: |
3015 | tmpreg = 0xC04; | |
3016 | break; | |
3e602632 | 3017 | case RAMBAR: |
252b5132 RH |
3018 | case RAMBAR1: |
3019 | tmpreg = 0xC05; | |
3020 | break; | |
3e602632 NC |
3021 | case MPCR: |
3022 | tmpreg = 0xC0C; | |
3023 | break; | |
3024 | case EDRAMBAR: | |
3025 | tmpreg = 0xC0D; | |
3026 | break; | |
3027 | case MBAR0: | |
e80e0390 | 3028 | case MBAR2: |
3e602632 NC |
3029 | case SECMBAR: |
3030 | tmpreg = 0xC0E; | |
3031 | break; | |
3032 | case MBAR1: | |
252b5132 RH |
3033 | case MBAR: |
3034 | tmpreg = 0xC0F; | |
3035 | break; | |
3e602632 NC |
3036 | case PCR1U0: |
3037 | tmpreg = 0xD02; | |
3038 | break; | |
3039 | case PCR1L0: | |
3040 | tmpreg = 0xD03; | |
3041 | break; | |
3042 | case PCR2U0: | |
3043 | tmpreg = 0xD04; | |
3044 | break; | |
3045 | case PCR2L0: | |
3046 | tmpreg = 0xD05; | |
3047 | break; | |
3048 | case PCR3U0: | |
3049 | tmpreg = 0xD06; | |
3050 | break; | |
3051 | case PCR3L0: | |
3052 | tmpreg = 0xD07; | |
3053 | break; | |
3054 | case PCR1L1: | |
3055 | tmpreg = 0xD0A; | |
3056 | break; | |
3057 | case PCR1U1: | |
3058 | tmpreg = 0xD0B; | |
3059 | break; | |
3060 | case PCR2L1: | |
3061 | tmpreg = 0xD0C; | |
3062 | break; | |
3063 | case PCR2U1: | |
3064 | tmpreg = 0xD0D; | |
3065 | break; | |
3066 | case PCR3L1: | |
3067 | tmpreg = 0xD0E; | |
3068 | break; | |
3069 | case PCR3U1: | |
3070 | tmpreg = 0xD0F; | |
3071 | break; | |
252b5132 RH |
3072 | default: |
3073 | abort (); | |
3074 | } | |
3075 | install_operand (s[1], tmpreg); | |
3076 | break; | |
3077 | ||
3078 | case 'k': | |
3079 | tmpreg = get_num (&opP->disp, 55); | |
3080 | install_operand (s[1], tmpreg & 0x7f); | |
3081 | break; | |
3082 | ||
3083 | case 'l': | |
3084 | tmpreg = opP->mask; | |
3085 | if (s[1] == 'w') | |
3086 | { | |
3087 | if (tmpreg & 0x7FF0000) | |
3088 | as_bad (_("Floating point register in register list")); | |
3089 | insop (reverse_16_bits (tmpreg), opcode); | |
3090 | } | |
3091 | else | |
3092 | { | |
3093 | if (tmpreg & 0x700FFFF) | |
3094 | as_bad (_("Wrong register in floating-point reglist")); | |
3095 | install_operand (s[1], reverse_8_bits (tmpreg >> 16)); | |
3096 | } | |
3097 | break; | |
3098 | ||
3099 | case 'L': | |
3100 | tmpreg = opP->mask; | |
3101 | if (s[1] == 'w') | |
3102 | { | |
3103 | if (tmpreg & 0x7FF0000) | |
3104 | as_bad (_("Floating point register in register list")); | |
3105 | insop (tmpreg, opcode); | |
3106 | } | |
3107 | else if (s[1] == '8') | |
3108 | { | |
3109 | if (tmpreg & 0x0FFFFFF) | |
3110 | as_bad (_("incorrect register in reglist")); | |
3111 | install_operand (s[1], tmpreg >> 24); | |
3112 | } | |
3113 | else | |
3114 | { | |
3115 | if (tmpreg & 0x700FFFF) | |
3116 | as_bad (_("wrong register in floating-point reglist")); | |
3117 | else | |
3118 | install_operand (s[1], tmpreg >> 16); | |
3119 | } | |
3120 | break; | |
3121 | ||
3122 | case 'M': | |
3123 | install_operand (s[1], get_num (&opP->disp, 60)); | |
3124 | break; | |
3125 | ||
3126 | case 'O': | |
3127 | tmpreg = ((opP->mode == DREG) | |
8fce3f5e | 3128 | ? 0x20 + (int) (opP->reg - DATA) |
252b5132 RH |
3129 | : (get_num (&opP->disp, 40) & 0x1F)); |
3130 | install_operand (s[1], tmpreg); | |
3131 | break; | |
3132 | ||
3133 | case 'Q': | |
3134 | tmpreg = get_num (&opP->disp, 10); | |
3135 | if (tmpreg == 8) | |
3136 | tmpreg = 0; | |
3137 | install_operand (s[1], tmpreg); | |
3138 | break; | |
3139 | ||
3140 | case 'R': | |
3141 | /* This depends on the fact that ADDR registers are eight | |
3142 | more than their corresponding DATA regs, so the result | |
36759679 | 3143 | will have the ADDR_REG bit set. */ |
252b5132 RH |
3144 | install_operand (s[1], opP->reg - DATA); |
3145 | break; | |
3146 | ||
3147 | case 'r': | |
3148 | if (opP->mode == AINDR) | |
3149 | install_operand (s[1], opP->reg - DATA); | |
3150 | else | |
3151 | install_operand (s[1], opP->index.reg - DATA); | |
3152 | break; | |
3153 | ||
3154 | case 's': | |
3155 | if (opP->reg == FPI) | |
3156 | tmpreg = 0x1; | |
3157 | else if (opP->reg == FPS) | |
3158 | tmpreg = 0x2; | |
3159 | else if (opP->reg == FPC) | |
3160 | tmpreg = 0x4; | |
3161 | else | |
3162 | abort (); | |
3163 | install_operand (s[1], tmpreg); | |
3164 | break; | |
3165 | ||
36759679 | 3166 | case 'S': /* Ignore it. */ |
252b5132 RH |
3167 | break; |
3168 | ||
3169 | case 'T': | |
3170 | install_operand (s[1], get_num (&opP->disp, 30)); | |
3171 | break; | |
3172 | ||
36759679 | 3173 | case 'U': /* Ignore it. */ |
252b5132 RH |
3174 | break; |
3175 | ||
3176 | case 'c': | |
3177 | switch (opP->reg) | |
3178 | { | |
3179 | case NC: | |
3180 | tmpreg = 0; | |
3181 | break; | |
3182 | case DC: | |
3183 | tmpreg = 1; | |
3184 | break; | |
3185 | case IC: | |
3186 | tmpreg = 2; | |
3187 | break; | |
3188 | case BC: | |
3189 | tmpreg = 3; | |
3190 | break; | |
3191 | default: | |
3192 | as_fatal (_("failed sanity check")); | |
36759679 | 3193 | } /* switch on cache token. */ |
252b5132 RH |
3194 | install_operand (s[1], tmpreg); |
3195 | break; | |
3196 | #ifndef NO_68851 | |
92774660 | 3197 | /* JF: These are out of order, I fear. */ |
252b5132 RH |
3198 | case 'f': |
3199 | switch (opP->reg) | |
3200 | { | |
3201 | case SFC: | |
3202 | tmpreg = 0; | |
3203 | break; | |
3204 | case DFC: | |
3205 | tmpreg = 1; | |
3206 | break; | |
3207 | default: | |
3208 | abort (); | |
3209 | } | |
3210 | install_operand (s[1], tmpreg); | |
3211 | break; | |
3212 | ||
3213 | case '0': | |
3214 | case '1': | |
3215 | case '2': | |
3216 | switch (opP->reg) | |
3217 | { | |
3218 | case TC: | |
3219 | tmpreg = 0; | |
3220 | break; | |
3221 | case CAL: | |
3222 | tmpreg = 4; | |
3223 | break; | |
3224 | case VAL: | |
3225 | tmpreg = 5; | |
3226 | break; | |
3227 | case SCC: | |
3228 | tmpreg = 6; | |
3229 | break; | |
3230 | case AC: | |
3231 | tmpreg = 7; | |
3232 | break; | |
3233 | default: | |
3234 | abort (); | |
3235 | } | |
3236 | install_operand (s[1], tmpreg); | |
3237 | break; | |
3238 | ||
3239 | case 'V': | |
3240 | if (opP->reg == VAL) | |
3241 | break; | |
3242 | abort (); | |
3243 | ||
3244 | case 'W': | |
3245 | switch (opP->reg) | |
3246 | { | |
3247 | case DRP: | |
3248 | tmpreg = 1; | |
3249 | break; | |
3250 | case SRP: | |
3251 | tmpreg = 2; | |
3252 | break; | |
3253 | case CRP: | |
3254 | tmpreg = 3; | |
3255 | break; | |
3256 | default: | |
3257 | abort (); | |
3258 | } | |
3259 | install_operand (s[1], tmpreg); | |
3260 | break; | |
3261 | ||
3262 | case 'X': | |
3263 | switch (opP->reg) | |
3264 | { | |
3265 | case BAD: | |
3266 | case BAD + 1: | |
3267 | case BAD + 2: | |
3268 | case BAD + 3: | |
3269 | case BAD + 4: | |
3270 | case BAD + 5: | |
3271 | case BAD + 6: | |
3272 | case BAD + 7: | |
3273 | tmpreg = (4 << 10) | ((opP->reg - BAD) << 2); | |
3274 | break; | |
3275 | ||
3276 | case BAC: | |
3277 | case BAC + 1: | |
3278 | case BAC + 2: | |
3279 | case BAC + 3: | |
3280 | case BAC + 4: | |
3281 | case BAC + 5: | |
3282 | case BAC + 6: | |
3283 | case BAC + 7: | |
3284 | tmpreg = (5 << 10) | ((opP->reg - BAC) << 2); | |
3285 | break; | |
3286 | ||
3287 | default: | |
3288 | abort (); | |
3289 | } | |
3290 | install_operand (s[1], tmpreg); | |
3291 | break; | |
3292 | case 'Y': | |
3293 | know (opP->reg == PSR); | |
3294 | break; | |
3295 | case 'Z': | |
3296 | know (opP->reg == PCSR); | |
3297 | break; | |
3298 | #endif /* m68851 */ | |
3299 | case '3': | |
3300 | switch (opP->reg) | |
3301 | { | |
3302 | case TT0: | |
3303 | tmpreg = 2; | |
3304 | break; | |
3305 | case TT1: | |
3306 | tmpreg = 3; | |
3307 | break; | |
3308 | default: | |
3309 | abort (); | |
3310 | } | |
3311 | install_operand (s[1], tmpreg); | |
3312 | break; | |
3313 | case 't': | |
3314 | tmpreg = get_num (&opP->disp, 20); | |
3315 | install_operand (s[1], tmpreg); | |
3316 | break; | |
36759679 | 3317 | case '_': /* used only for move16 absolute 32-bit address. */ |
252b5132 RH |
3318 | if (isvar (&opP->disp)) |
3319 | add_fix ('l', &opP->disp, 0, 0); | |
3e602632 | 3320 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
3321 | addword (tmpreg >> 16); |
3322 | addword (tmpreg & 0xFFFF); | |
3323 | break; | |
6da466c7 ILT |
3324 | case 'u': |
3325 | install_operand (s[1], opP->reg - DATA0L); | |
3326 | opP->reg -= (DATA0L); | |
36759679 | 3327 | opP->reg &= 0x0F; /* remove upper/lower bit. */ |
6da466c7 | 3328 | break; |
3e602632 NC |
3329 | case 'x': |
3330 | tmpreg = get_num (&opP->disp, 80); | |
3331 | if (tmpreg == -1) | |
3332 | tmpreg = 0; | |
3333 | install_operand (s[1], tmpreg); | |
3334 | break; | |
252b5132 RH |
3335 | default: |
3336 | abort (); | |
3337 | } | |
3338 | } | |
3339 | ||
3340 | /* By the time whe get here (FINALLY) the_ins contains the complete | |
92774660 | 3341 | instruction, ready to be emitted. . . */ |
252b5132 RH |
3342 | } |
3343 | ||
3344 | static int | |
31302357 | 3345 | reverse_16_bits (int in) |
252b5132 RH |
3346 | { |
3347 | int out = 0; | |
3348 | int n; | |
3349 | ||
3350 | static int mask[16] = | |
3351 | { | |
3352 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3353 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 | |
3354 | }; | |
3355 | for (n = 0; n < 16; n++) | |
3356 | { | |
3357 | if (in & mask[n]) | |
3358 | out |= mask[15 - n]; | |
3359 | } | |
3360 | return out; | |
3361 | } /* reverse_16_bits() */ | |
3362 | ||
3363 | static int | |
31302357 | 3364 | reverse_8_bits (int in) |
252b5132 RH |
3365 | { |
3366 | int out = 0; | |
3367 | int n; | |
3368 | ||
3369 | static int mask[8] = | |
3370 | { | |
3371 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3372 | }; | |
3373 | ||
3374 | for (n = 0; n < 8; n++) | |
3375 | { | |
3376 | if (in & mask[n]) | |
3377 | out |= mask[7 - n]; | |
3378 | } | |
3379 | return out; | |
3380 | } /* reverse_8_bits() */ | |
3381 | ||
3382 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
3383 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
3384 | is the subtype of the frag to be generated; its primary type is | |
3385 | rs_machine_dependent. | |
3386 | ||
3387 | The TYPE parameter is also used by md_convert_frag_1 and | |
3388 | md_estimate_size_before_relax. The appropriate type of fixup will | |
3389 | be emitted by md_convert_frag_1. | |
3390 | ||
3391 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
3392 | static void | |
31302357 | 3393 | install_operand (int mode, int val) |
252b5132 RH |
3394 | { |
3395 | switch (mode) | |
3396 | { | |
3397 | case 's': | |
36759679 | 3398 | the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge. */ |
252b5132 RH |
3399 | break; |
3400 | case 'd': | |
3401 | the_ins.opcode[0] |= val << 9; | |
3402 | break; | |
3403 | case '1': | |
3404 | the_ins.opcode[1] |= val << 12; | |
3405 | break; | |
3406 | case '2': | |
3407 | the_ins.opcode[1] |= val << 6; | |
3408 | break; | |
3409 | case '3': | |
3410 | the_ins.opcode[1] |= val; | |
3411 | break; | |
3412 | case '4': | |
3413 | the_ins.opcode[2] |= val << 12; | |
3414 | break; | |
3415 | case '5': | |
3416 | the_ins.opcode[2] |= val << 6; | |
3417 | break; | |
3418 | case '6': | |
3419 | /* DANGER! This is a hack to force cas2l and cas2w cmds to be | |
3420 | three words long! */ | |
3421 | the_ins.numo++; | |
3422 | the_ins.opcode[2] |= val; | |
3423 | break; | |
3424 | case '7': | |
3425 | the_ins.opcode[1] |= val << 7; | |
3426 | break; | |
3427 | case '8': | |
3428 | the_ins.opcode[1] |= val << 10; | |
3429 | break; | |
3430 | #ifndef NO_68851 | |
3431 | case '9': | |
3432 | the_ins.opcode[1] |= val << 5; | |
3433 | break; | |
3434 | #endif | |
3435 | ||
3436 | case 't': | |
3437 | the_ins.opcode[1] |= (val << 10) | (val << 7); | |
3438 | break; | |
3439 | case 'D': | |
3440 | the_ins.opcode[1] |= (val << 12) | val; | |
3441 | break; | |
3442 | case 'g': | |
3443 | the_ins.opcode[0] |= val = 0xff; | |
3444 | break; | |
3445 | case 'i': | |
3446 | the_ins.opcode[0] |= val << 9; | |
3447 | break; | |
3448 | case 'C': | |
3449 | the_ins.opcode[1] |= val; | |
3450 | break; | |
3451 | case 'j': | |
3452 | the_ins.opcode[1] |= val; | |
36759679 | 3453 | the_ins.numo++; /* What a hack. */ |
252b5132 RH |
3454 | break; |
3455 | case 'k': | |
3456 | the_ins.opcode[1] |= val << 4; | |
3457 | break; | |
3458 | case 'b': | |
3459 | case 'w': | |
3460 | case 'W': | |
3461 | case 'l': | |
3462 | break; | |
3463 | case 'e': | |
3464 | the_ins.opcode[0] |= (val << 6); | |
3465 | break; | |
3466 | case 'L': | |
3467 | the_ins.opcode[1] = (val >> 16); | |
3468 | the_ins.opcode[2] = val & 0xffff; | |
3469 | break; | |
6da466c7 ILT |
3470 | case 'm': |
3471 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); | |
3472 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
3473 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3474 | break; | |
fd99574b | 3475 | case 'n': /* MAC/EMAC Rx on !load. */ |
6da466c7 ILT |
3476 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); |
3477 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
fd99574b | 3478 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); |
6da466c7 | 3479 | break; |
fd99574b | 3480 | case 'o': /* MAC/EMAC Rx on load. */ |
6da466c7 ILT |
3481 | the_ins.opcode[1] |= val << 12; |
3482 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3483 | break; | |
fd99574b | 3484 | case 'M': /* MAC/EMAC Ry on !load. */ |
6da466c7 ILT |
3485 | the_ins.opcode[0] |= (val & 0xF); |
3486 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3487 | break; | |
fd99574b | 3488 | case 'N': /* MAC/EMAC Ry on load. */ |
6da466c7 ILT |
3489 | the_ins.opcode[1] |= (val & 0xF); |
3490 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3491 | break; | |
3492 | case 'h': | |
3493 | the_ins.opcode[1] |= ((val != 1) << 10); | |
3494 | break; | |
fd99574b NC |
3495 | case 'F': |
3496 | the_ins.opcode[0] |= ((val & 0x3) << 9); | |
3497 | break; | |
3498 | case 'f': | |
3499 | the_ins.opcode[0] |= ((val & 0x3) << 0); | |
3500 | break; | |
be8c092b | 3501 | case 'G': /* EMAC accumulator in a EMAC load instruction. */ |
fd99574b NC |
3502 | the_ins.opcode[0] |= ((~val & 0x1) << 7); |
3503 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3504 | break; | |
be8c092b | 3505 | case 'H': /* EMAC accumulator in a EMAC non-load instruction. */ |
fd99574b NC |
3506 | the_ins.opcode[0] |= ((val & 0x1) << 7); |
3507 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3508 | break; | |
3509 | case 'I': | |
3510 | the_ins.opcode[1] |= ((val & 0x3) << 9); | |
3511 | break; | |
3512 | case ']': | |
3513 | the_ins.opcode[0] |= (val & 0x1) <<10; | |
3514 | break; | |
252b5132 RH |
3515 | case 'c': |
3516 | default: | |
3517 | as_fatal (_("failed sanity check.")); | |
3518 | } | |
6b6e92f4 | 3519 | } |
252b5132 RH |
3520 | |
3521 | static void | |
31302357 | 3522 | install_gen_operand (int mode, int val) |
252b5132 RH |
3523 | { |
3524 | switch (mode) | |
3525 | { | |
fd99574b NC |
3526 | case '/': /* Special for mask loads for mac/msac insns with |
3527 | possible mask; trailing_ampersend set in bit 8. */ | |
3528 | the_ins.opcode[0] |= (val & 0x3f); | |
3529 | the_ins.opcode[1] |= (((val & 0x100) >> 8) << 5); | |
3530 | break; | |
252b5132 RH |
3531 | case 's': |
3532 | the_ins.opcode[0] |= val; | |
3533 | break; | |
3534 | case 'd': | |
3535 | /* This is a kludge!!! */ | |
3536 | the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3; | |
3537 | break; | |
3538 | case 'b': | |
3539 | case 'w': | |
3540 | case 'l': | |
3541 | case 'f': | |
3542 | case 'F': | |
3543 | case 'x': | |
3544 | case 'p': | |
3545 | the_ins.opcode[0] |= val; | |
3546 | break; | |
36759679 | 3547 | /* more stuff goes here. */ |
252b5132 RH |
3548 | default: |
3549 | as_fatal (_("failed sanity check.")); | |
3550 | } | |
6b6e92f4 | 3551 | } |
252b5132 | 3552 | |
6b6e92f4 NC |
3553 | /* Verify that we have some number of paren pairs, do m68k_ip_op(), and |
3554 | then deal with the bitfield hack. */ | |
252b5132 RH |
3555 | |
3556 | static char * | |
31302357 | 3557 | crack_operand (char *str, struct m68k_op *opP) |
252b5132 RH |
3558 | { |
3559 | register int parens; | |
3560 | register int c; | |
3561 | register char *beg_str; | |
3562 | int inquote = 0; | |
3563 | ||
3564 | if (!str) | |
3565 | { | |
3566 | return str; | |
3567 | } | |
3568 | beg_str = str; | |
3569 | for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++) | |
3570 | { | |
3571 | if (! inquote) | |
3572 | { | |
3573 | if (*str == '(') | |
3574 | parens++; | |
3575 | else if (*str == ')') | |
3576 | { | |
3577 | if (!parens) | |
36759679 | 3578 | { /* ERROR. */ |
252b5132 RH |
3579 | opP->error = _("Extra )"); |
3580 | return str; | |
3581 | } | |
3582 | --parens; | |
3583 | } | |
3584 | } | |
3585 | if (flag_mri && *str == '\'') | |
3586 | inquote = ! inquote; | |
3587 | } | |
3588 | if (!*str && parens) | |
36759679 | 3589 | { /* ERROR. */ |
252b5132 RH |
3590 | opP->error = _("Missing )"); |
3591 | return str; | |
3592 | } | |
3593 | c = *str; | |
3594 | *str = '\0'; | |
3595 | if (m68k_ip_op (beg_str, opP) != 0) | |
3596 | { | |
3597 | *str = c; | |
3598 | return str; | |
3599 | } | |
3600 | *str = c; | |
3601 | if (c == '}') | |
36759679 | 3602 | c = *++str; /* JF bitfield hack. */ |
252b5132 RH |
3603 | if (c) |
3604 | { | |
3605 | c = *++str; | |
3606 | if (!c) | |
3607 | as_bad (_("Missing operand")); | |
3608 | } | |
3609 | ||
3610 | /* Detect MRI REG symbols and convert them to REGLSTs. */ | |
3611 | if (opP->mode == CONTROL && (int)opP->reg < 0) | |
3612 | { | |
3613 | opP->mode = REGLST; | |
3614 | opP->mask = ~(int)opP->reg; | |
3615 | opP->reg = 0; | |
3616 | } | |
3617 | ||
3618 | return str; | |
3619 | } | |
3620 | ||
3621 | /* This is the guts of the machine-dependent assembler. STR points to a | |
3622 | machine dependent instruction. This function is supposed to emit | |
3623 | the frags/bytes it assembles to. | |
3624 | */ | |
3625 | ||
3626 | static void | |
31302357 | 3627 | insert_reg (const char *regname, int regnum) |
252b5132 RH |
3628 | { |
3629 | char buf[100]; | |
3630 | int i; | |
3631 | ||
3632 | #ifdef REGISTER_PREFIX | |
3633 | if (!flag_reg_prefix_optional) | |
3634 | { | |
3635 | buf[0] = REGISTER_PREFIX; | |
3636 | strcpy (buf + 1, regname); | |
3637 | regname = buf; | |
3638 | } | |
3639 | #endif | |
3640 | ||
3641 | symbol_table_insert (symbol_new (regname, reg_section, regnum, | |
3642 | &zero_address_frag)); | |
3643 | ||
3644 | for (i = 0; regname[i]; i++) | |
3882b010 | 3645 | buf[i] = TOUPPER (regname[i]); |
252b5132 RH |
3646 | buf[i] = '\0'; |
3647 | ||
3648 | symbol_table_insert (symbol_new (buf, reg_section, regnum, | |
3649 | &zero_address_frag)); | |
3650 | } | |
3651 | ||
3652 | struct init_entry | |
3653 | { | |
3654 | const char *name; | |
3655 | int number; | |
3656 | }; | |
3657 | ||
3658 | static const struct init_entry init_table[] = | |
3659 | { | |
3660 | { "d0", DATA0 }, | |
3661 | { "d1", DATA1 }, | |
3662 | { "d2", DATA2 }, | |
3663 | { "d3", DATA3 }, | |
3664 | { "d4", DATA4 }, | |
3665 | { "d5", DATA5 }, | |
3666 | { "d6", DATA6 }, | |
3667 | { "d7", DATA7 }, | |
3668 | { "a0", ADDR0 }, | |
3669 | { "a1", ADDR1 }, | |
3670 | { "a2", ADDR2 }, | |
3671 | { "a3", ADDR3 }, | |
3672 | { "a4", ADDR4 }, | |
3673 | { "a5", ADDR5 }, | |
3674 | { "a6", ADDR6 }, | |
3675 | { "fp", ADDR6 }, | |
3676 | { "a7", ADDR7 }, | |
3677 | { "sp", ADDR7 }, | |
3678 | { "ssp", ADDR7 }, | |
3679 | { "fp0", FP0 }, | |
3680 | { "fp1", FP1 }, | |
3681 | { "fp2", FP2 }, | |
3682 | { "fp3", FP3 }, | |
3683 | { "fp4", FP4 }, | |
3684 | { "fp5", FP5 }, | |
3685 | { "fp6", FP6 }, | |
3686 | { "fp7", FP7 }, | |
3687 | { "fpi", FPI }, | |
3688 | { "fpiar", FPI }, | |
3689 | { "fpc", FPI }, | |
3690 | { "fps", FPS }, | |
3691 | { "fpsr", FPS }, | |
3692 | { "fpc", FPC }, | |
3693 | { "fpcr", FPC }, | |
3694 | { "control", FPC }, | |
3695 | { "status", FPS }, | |
3696 | { "iaddr", FPI }, | |
3697 | ||
3698 | { "cop0", COP0 }, | |
3699 | { "cop1", COP1 }, | |
3700 | { "cop2", COP2 }, | |
3701 | { "cop3", COP3 }, | |
3702 | { "cop4", COP4 }, | |
3703 | { "cop5", COP5 }, | |
3704 | { "cop6", COP6 }, | |
3705 | { "cop7", COP7 }, | |
3706 | { "pc", PC }, | |
3707 | { "zpc", ZPC }, | |
3708 | { "sr", SR }, | |
3709 | ||
3710 | { "ccr", CCR }, | |
3711 | { "cc", CCR }, | |
3712 | ||
6da466c7 | 3713 | { "acc", ACC }, |
fd99574b NC |
3714 | { "acc0", ACC }, |
3715 | { "acc1", ACC1 }, | |
3716 | { "acc2", ACC2 }, | |
3717 | { "acc3", ACC3 }, | |
3718 | { "accext01", ACCEXT01 }, | |
3719 | { "accext23", ACCEXT23 }, | |
6da466c7 ILT |
3720 | { "macsr", MACSR }, |
3721 | { "mask", MASK }, | |
3722 | ||
36759679 NC |
3723 | /* Control registers. */ |
3724 | { "sfc", SFC }, /* Source Function Code. */ | |
252b5132 | 3725 | { "sfcr", SFC }, |
36759679 | 3726 | { "dfc", DFC }, /* Destination Function Code. */ |
252b5132 | 3727 | { "dfcr", DFC }, |
36759679 NC |
3728 | { "cacr", CACR }, /* Cache Control Register. */ |
3729 | { "caar", CAAR }, /* Cache Address Register. */ | |
252b5132 | 3730 | |
36759679 NC |
3731 | { "usp", USP }, /* User Stack Pointer. */ |
3732 | { "vbr", VBR }, /* Vector Base Register. */ | |
3733 | { "msp", MSP }, /* Master Stack Pointer. */ | |
3734 | { "isp", ISP }, /* Interrupt Stack Pointer. */ | |
252b5132 | 3735 | |
36759679 NC |
3736 | { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0. */ |
3737 | { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1. */ | |
3738 | { "dtt0", DTT0 }, /* Data Transparent Translation Register 0. */ | |
3739 | { "dtt1", DTT1 }, /* Data Transparent Translation Register 1. */ | |
252b5132 RH |
3740 | |
3741 | /* 68ec040 versions of same */ | |
36759679 NC |
3742 | { "iacr0", ITT0 }, /* Instruction Access Control Register 0. */ |
3743 | { "iacr1", ITT1 }, /* Instruction Access Control Register 0. */ | |
3744 | { "dacr0", DTT0 }, /* Data Access Control Register 0. */ | |
3745 | { "dacr1", DTT1 }, /* Data Access Control Register 0. */ | |
252b5132 RH |
3746 | |
3747 | /* mcf5200 versions of same. The ColdFire programmer's reference | |
3748 | manual indicated that the order is 2,3,0,1, but Ken Rose | |
3749 | <rose@netcom.com> says that 0,1,2,3 is the correct order. */ | |
3e602632 NC |
3750 | { "acr0", ACR0 }, /* Access Control Unit 0. */ |
3751 | { "acr1", ACR1 }, /* Access Control Unit 1. */ | |
3752 | { "acr2", ACR2 }, /* Access Control Unit 2. */ | |
3753 | { "acr3", ACR3 }, /* Access Control Unit 3. */ | |
252b5132 | 3754 | |
36759679 | 3755 | { "tc", TC }, /* MMU Translation Control Register. */ |
252b5132 RH |
3756 | { "tcr", TC }, |
3757 | ||
36759679 NC |
3758 | { "mmusr", MMUSR }, /* MMU Status Register. */ |
3759 | { "srp", SRP }, /* User Root Pointer. */ | |
3760 | { "urp", URP }, /* Supervisor Root Pointer. */ | |
252b5132 RH |
3761 | |
3762 | { "buscr", BUSCR }, | |
3763 | { "pcr", PCR }, | |
3764 | ||
36759679 NC |
3765 | { "rombar", ROMBAR }, /* ROM Base Address Register. */ |
3766 | { "rambar0", RAMBAR0 }, /* ROM Base Address Register. */ | |
3767 | { "rambar1", RAMBAR1 }, /* ROM Base Address Register. */ | |
3768 | { "mbar", MBAR }, /* Module Base Address Register. */ | |
3e602632 NC |
3769 | |
3770 | { "mbar0", MBAR0 }, /* mcfv4e registers. */ | |
3771 | { "mbar1", MBAR1 }, /* mcfv4e registers. */ | |
3772 | { "rombar0", ROMBAR }, /* mcfv4e registers. */ | |
3773 | { "rombar1", ROMBAR1 }, /* mcfv4e registers. */ | |
3774 | { "mpcr", MPCR }, /* mcfv4e registers. */ | |
3775 | { "edrambar", EDRAMBAR }, /* mcfv4e registers. */ | |
3776 | { "secmbar", SECMBAR }, /* mcfv4e registers. */ | |
3777 | { "asid", TC }, /* mcfv4e registers. */ | |
3778 | { "mmubar", BUSCR }, /* mcfv4e registers. */ | |
3779 | { "pcr1u0", PCR1U0 }, /* mcfv4e registers. */ | |
3780 | { "pcr1l0", PCR1L0 }, /* mcfv4e registers. */ | |
3781 | { "pcr2u0", PCR2U0 }, /* mcfv4e registers. */ | |
3782 | { "pcr2l0", PCR2L0 }, /* mcfv4e registers. */ | |
3783 | { "pcr3u0", PCR3U0 }, /* mcfv4e registers. */ | |
3784 | { "pcr3l0", PCR3L0 }, /* mcfv4e registers. */ | |
3785 | { "pcr1u1", PCR1U1 }, /* mcfv4e registers. */ | |
3786 | { "pcr1l1", PCR1L1 }, /* mcfv4e registers. */ | |
3787 | { "pcr2u1", PCR2U1 }, /* mcfv4e registers. */ | |
3788 | { "pcr2l1", PCR2L1 }, /* mcfv4e registers. */ | |
3789 | { "pcr3u1", PCR3U1 }, /* mcfv4e registers. */ | |
3790 | { "pcr3l1", PCR3L1 }, /* mcfv4e registers. */ | |
3791 | ||
3792 | { "flashbar", FLASHBAR }, /* mcf528x registers. */ | |
3793 | { "rambar", RAMBAR }, /* mcf528x registers. */ | |
e80e0390 NC |
3794 | |
3795 | { "mbar2", MBAR2 }, /* mcf5249 registers. */ | |
36759679 | 3796 | /* End of control registers. */ |
252b5132 RH |
3797 | |
3798 | { "ac", AC }, | |
3799 | { "bc", BC }, | |
3800 | { "cal", CAL }, | |
3801 | { "crp", CRP }, | |
3802 | { "drp", DRP }, | |
3803 | { "pcsr", PCSR }, | |
3804 | { "psr", PSR }, | |
3805 | { "scc", SCC }, | |
3806 | { "val", VAL }, | |
3807 | { "bad0", BAD0 }, | |
3808 | { "bad1", BAD1 }, | |
3809 | { "bad2", BAD2 }, | |
3810 | { "bad3", BAD3 }, | |
3811 | { "bad4", BAD4 }, | |
3812 | { "bad5", BAD5 }, | |
3813 | { "bad6", BAD6 }, | |
3814 | { "bad7", BAD7 }, | |
3815 | { "bac0", BAC0 }, | |
3816 | { "bac1", BAC1 }, | |
3817 | { "bac2", BAC2 }, | |
3818 | { "bac3", BAC3 }, | |
3819 | { "bac4", BAC4 }, | |
3820 | { "bac5", BAC5 }, | |
3821 | { "bac6", BAC6 }, | |
3822 | { "bac7", BAC7 }, | |
3823 | ||
3824 | { "ic", IC }, | |
3825 | { "dc", DC }, | |
3826 | { "nc", NC }, | |
3827 | ||
3828 | { "tt0", TT0 }, | |
3829 | { "tt1", TT1 }, | |
36759679 | 3830 | /* 68ec030 versions of same. */ |
252b5132 RH |
3831 | { "ac0", TT0 }, |
3832 | { "ac1", TT1 }, | |
36759679 | 3833 | /* 68ec030 access control unit, identical to 030 MMU status reg. */ |
252b5132 RH |
3834 | { "acusr", PSR }, |
3835 | ||
3836 | /* Suppressed data and address registers. */ | |
3837 | { "zd0", ZDATA0 }, | |
3838 | { "zd1", ZDATA1 }, | |
3839 | { "zd2", ZDATA2 }, | |
3840 | { "zd3", ZDATA3 }, | |
3841 | { "zd4", ZDATA4 }, | |
3842 | { "zd5", ZDATA5 }, | |
3843 | { "zd6", ZDATA6 }, | |
3844 | { "zd7", ZDATA7 }, | |
3845 | { "za0", ZADDR0 }, | |
3846 | { "za1", ZADDR1 }, | |
3847 | { "za2", ZADDR2 }, | |
3848 | { "za3", ZADDR3 }, | |
3849 | { "za4", ZADDR4 }, | |
3850 | { "za5", ZADDR5 }, | |
3851 | { "za6", ZADDR6 }, | |
3852 | { "za7", ZADDR7 }, | |
3853 | ||
92774660 | 3854 | /* Upper and lower data and address registers, used by macw and msacw. */ |
6da466c7 ILT |
3855 | { "d0l", DATA0L }, |
3856 | { "d1l", DATA1L }, | |
3857 | { "d2l", DATA2L }, | |
3858 | { "d3l", DATA3L }, | |
3859 | { "d4l", DATA4L }, | |
3860 | { "d5l", DATA5L }, | |
3861 | { "d6l", DATA6L }, | |
3862 | { "d7l", DATA7L }, | |
3863 | ||
3864 | { "a0l", ADDR0L }, | |
3865 | { "a1l", ADDR1L }, | |
3866 | { "a2l", ADDR2L }, | |
3867 | { "a3l", ADDR3L }, | |
3868 | { "a4l", ADDR4L }, | |
3869 | { "a5l", ADDR5L }, | |
3870 | { "a6l", ADDR6L }, | |
3871 | { "a7l", ADDR7L }, | |
3872 | ||
3873 | { "d0u", DATA0U }, | |
3874 | { "d1u", DATA1U }, | |
3875 | { "d2u", DATA2U }, | |
3876 | { "d3u", DATA3U }, | |
3877 | { "d4u", DATA4U }, | |
3878 | { "d5u", DATA5U }, | |
3879 | { "d6u", DATA6U }, | |
3880 | { "d7u", DATA7U }, | |
3881 | ||
3882 | { "a0u", ADDR0U }, | |
3883 | { "a1u", ADDR1U }, | |
3884 | { "a2u", ADDR2U }, | |
3885 | { "a3u", ADDR3U }, | |
3886 | { "a4u", ADDR4U }, | |
3887 | { "a5u", ADDR5U }, | |
3888 | { "a6u", ADDR6U }, | |
3889 | { "a7u", ADDR7U }, | |
3890 | ||
252b5132 RH |
3891 | { 0, 0 } |
3892 | }; | |
3893 | ||
3894 | static void | |
31302357 | 3895 | init_regtable (void) |
252b5132 RH |
3896 | { |
3897 | int i; | |
3898 | for (i = 0; init_table[i].name; i++) | |
3899 | insert_reg (init_table[i].name, init_table[i].number); | |
3900 | } | |
3901 | ||
252b5132 | 3902 | void |
31302357 | 3903 | md_assemble (char *str) |
252b5132 RH |
3904 | { |
3905 | const char *er; | |
3906 | short *fromP; | |
3907 | char *toP = NULL; | |
3908 | int m, n = 0; | |
3909 | char *to_beg_P; | |
3910 | int shorts_this_frag; | |
3911 | fixS *fixP; | |
3912 | ||
266abb8f NS |
3913 | if (!selected_cpu && !selected_arch) |
3914 | { | |
3915 | /* We've not selected an architecture yet. Set the default | |
3916 | now. We do this lazily so that an initial .cpu or .arch directive | |
3917 | can specify. */ | |
3918 | if (!m68k_set_cpu (TARGET_CPU, 1, 1)) | |
3919 | as_bad (_("unrecognized default cpu `%s'"), TARGET_CPU); | |
3920 | } | |
3921 | if (!initialized) | |
3922 | m68k_init_arch (); | |
3923 | ||
252b5132 RH |
3924 | /* In MRI mode, the instruction and operands are separated by a |
3925 | space. Anything following the operands is a comment. The label | |
3926 | has already been removed. */ | |
3927 | if (flag_mri) | |
3928 | { | |
3929 | char *s; | |
3930 | int fields = 0; | |
3931 | int infield = 0; | |
3932 | int inquote = 0; | |
3933 | ||
3934 | for (s = str; *s != '\0'; s++) | |
3935 | { | |
3936 | if ((*s == ' ' || *s == '\t') && ! inquote) | |
3937 | { | |
3938 | if (infield) | |
3939 | { | |
3940 | ++fields; | |
3941 | if (fields >= 2) | |
3942 | { | |
3943 | *s = '\0'; | |
3944 | break; | |
3945 | } | |
3946 | infield = 0; | |
3947 | } | |
3948 | } | |
3949 | else | |
3950 | { | |
3951 | if (! infield) | |
3952 | infield = 1; | |
3953 | if (*s == '\'') | |
3954 | inquote = ! inquote; | |
3955 | } | |
3956 | } | |
3957 | } | |
3958 | ||
31302357 | 3959 | memset (&the_ins, '\0', sizeof (the_ins)); |
252b5132 RH |
3960 | m68k_ip (str); |
3961 | er = the_ins.error; | |
3962 | if (!er) | |
3963 | { | |
3964 | for (n = 0; n < the_ins.numargs; n++) | |
3965 | if (the_ins.operands[n].error) | |
3966 | { | |
3967 | er = the_ins.operands[n].error; | |
3968 | break; | |
3969 | } | |
3970 | } | |
3971 | if (er) | |
3972 | { | |
3973 | as_bad (_("%s -- statement `%s' ignored"), er, str); | |
3974 | return; | |
3975 | } | |
3976 | ||
3977 | /* If there is a current label, record that it marks an instruction. */ | |
3978 | if (current_label != NULL) | |
3979 | { | |
3980 | current_label->text = 1; | |
3981 | current_label = NULL; | |
3982 | } | |
3983 | ||
f27a3839 AS |
3984 | #ifdef OBJ_ELF |
3985 | /* Tie dwarf2 debug info to the address at the start of the insn. */ | |
3986 | dwarf2_emit_insn (0); | |
3987 | #endif | |
3988 | ||
252b5132 RH |
3989 | if (the_ins.nfrag == 0) |
3990 | { | |
36759679 | 3991 | /* No frag hacking involved; just put it out. */ |
252b5132 RH |
3992 | toP = frag_more (2 * the_ins.numo); |
3993 | fromP = &the_ins.opcode[0]; | |
3994 | for (m = the_ins.numo; m; --m) | |
3995 | { | |
3996 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3997 | toP += 2; | |
3998 | fromP++; | |
3999 | } | |
36759679 | 4000 | /* Put out symbol-dependent info. */ |
252b5132 RH |
4001 | for (m = 0; m < the_ins.nrel; m++) |
4002 | { | |
4003 | switch (the_ins.reloc[m].wid) | |
4004 | { | |
4005 | case 'B': | |
4006 | n = 1; | |
4007 | break; | |
4008 | case 'b': | |
4009 | n = 1; | |
4010 | break; | |
4011 | case '3': | |
4012 | n = 1; | |
4013 | break; | |
4014 | case 'w': | |
4015 | case 'W': | |
4016 | n = 2; | |
4017 | break; | |
4018 | case 'l': | |
4019 | n = 4; | |
4020 | break; | |
4021 | default: | |
4022 | as_fatal (_("Don't know how to figure width of %c in md_assemble()"), | |
4023 | the_ins.reloc[m].wid); | |
4024 | } | |
4025 | ||
4026 | fixP = fix_new_exp (frag_now, | |
4027 | ((toP - frag_now->fr_literal) | |
4028 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4029 | n, | |
4030 | &the_ins.reloc[m].exp, | |
4031 | the_ins.reloc[m].pcrel, | |
4032 | get_reloc_code (n, the_ins.reloc[m].pcrel, | |
4033 | the_ins.reloc[m].pic_reloc)); | |
4034 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4035 | if (the_ins.reloc[m].wid == 'B') | |
4036 | fixP->fx_signed = 1; | |
4037 | } | |
4038 | return; | |
4039 | } | |
4040 | ||
36759679 | 4041 | /* There's some frag hacking. */ |
fbe572f9 AM |
4042 | { |
4043 | /* Calculate the max frag size. */ | |
4044 | int wid; | |
4045 | ||
4046 | wid = 2 * the_ins.fragb[0].fragoff; | |
4047 | for (n = 1; n < the_ins.nfrag; n++) | |
4048 | wid += 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4049 | /* frag_var part. */ | |
4050 | wid += 10; | |
4051 | /* Make sure the whole insn fits in one chunk, in particular that | |
4052 | the var part is attached, as we access one byte before the | |
4053 | variable frag for byte branches. */ | |
4054 | frag_grow (wid); | |
4055 | } | |
4056 | ||
252b5132 RH |
4057 | for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++) |
4058 | { | |
4059 | int wid; | |
4060 | ||
4061 | if (n == 0) | |
4062 | wid = 2 * the_ins.fragb[n].fragoff; | |
4063 | else | |
4064 | wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4065 | toP = frag_more (wid); | |
4066 | to_beg_P = toP; | |
4067 | shorts_this_frag = 0; | |
4068 | for (m = wid / 2; m; --m) | |
4069 | { | |
4070 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4071 | toP += 2; | |
4072 | fromP++; | |
4073 | shorts_this_frag++; | |
4074 | } | |
4075 | for (m = 0; m < the_ins.nrel; m++) | |
4076 | { | |
4077 | if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag) | |
4078 | { | |
4079 | the_ins.reloc[m].n -= 2 * shorts_this_frag; | |
4080 | break; | |
4081 | } | |
4082 | wid = the_ins.reloc[m].wid; | |
4083 | if (wid == 0) | |
4084 | continue; | |
4085 | the_ins.reloc[m].wid = 0; | |
4086 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4087 | ||
4088 | fixP = fix_new_exp (frag_now, | |
4089 | ((toP - frag_now->fr_literal) | |
4090 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4091 | wid, | |
4092 | &the_ins.reloc[m].exp, | |
4093 | the_ins.reloc[m].pcrel, | |
4094 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4095 | the_ins.reloc[m].pic_reloc)); | |
4096 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4097 | } | |
4098 | (void) frag_var (rs_machine_dependent, 10, 0, | |
4099 | (relax_substateT) (the_ins.fragb[n].fragty), | |
4100 | the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P); | |
4101 | } | |
4102 | n = (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4103 | shorts_this_frag = 0; | |
4104 | if (n) | |
4105 | { | |
055d1eb0 | 4106 | toP = frag_more (n * 2); |
252b5132 RH |
4107 | while (n--) |
4108 | { | |
4109 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4110 | toP += 2; | |
4111 | fromP++; | |
4112 | shorts_this_frag++; | |
4113 | } | |
4114 | } | |
4115 | for (m = 0; m < the_ins.nrel; m++) | |
4116 | { | |
4117 | int wid; | |
4118 | ||
4119 | wid = the_ins.reloc[m].wid; | |
4120 | if (wid == 0) | |
4121 | continue; | |
4122 | the_ins.reloc[m].wid = 0; | |
4123 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4124 | ||
4125 | fixP = fix_new_exp (frag_now, | |
4126 | ((the_ins.reloc[m].n + toP - frag_now->fr_literal) | |
4127 | - shorts_this_frag * 2), | |
4128 | wid, | |
4129 | &the_ins.reloc[m].exp, | |
4130 | the_ins.reloc[m].pcrel, | |
4131 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4132 | the_ins.reloc[m].pic_reloc)); | |
4133 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4134 | } | |
4135 | } | |
4136 | ||
60fed2d3 NC |
4137 | /* Comparison function used by qsort to rank the opcode entries by name. */ |
4138 | ||
4139 | static int | |
4140 | m68k_compare_opcode (const void * v1, const void * v2) | |
4141 | { | |
4142 | struct m68k_opcode * op1, * op2; | |
4143 | int ret; | |
4144 | ||
03b13e59 NC |
4145 | if (v1 == v2) |
4146 | return 0; | |
4147 | ||
60fed2d3 NC |
4148 | op1 = *(struct m68k_opcode **) v1; |
4149 | op2 = *(struct m68k_opcode **) v2; | |
4150 | ||
4151 | /* Compare the two names. If different, return the comparison. | |
4152 | If the same, return the order they are in the opcode table. */ | |
4153 | ret = strcmp (op1->name, op2->name); | |
4154 | if (ret) | |
4155 | return ret; | |
4156 | if (op1 < op2) | |
4157 | return -1; | |
03b13e59 | 4158 | return 1; |
60fed2d3 NC |
4159 | } |
4160 | ||
252b5132 | 4161 | void |
60fed2d3 | 4162 | md_begin (void) |
252b5132 | 4163 | { |
60fed2d3 NC |
4164 | const struct m68k_opcode *ins; |
4165 | struct m68k_incant *hack, *slak; | |
4166 | const char *retval = 0; /* Empty string, or error msg text. */ | |
4167 | int i; | |
4168 | ||
4169 | /* Set up hash tables with 68000 instructions. | |
4170 | similar to what the vax assembler does. */ | |
252b5132 RH |
4171 | /* RMS claims the thing to do is take the m68k-opcode.h table, and make |
4172 | a copy of it at runtime, adding in the information we want but isn't | |
4173 | there. I think it'd be better to have an awk script hack the table | |
4174 | at compile time. Or even just xstr the table and use it as-is. But | |
4175 | my lord ghod hath spoken, so we do it this way. Excuse the ugly var | |
4176 | names. */ | |
4177 | ||
252b5132 RH |
4178 | if (flag_mri) |
4179 | { | |
4180 | flag_reg_prefix_optional = 1; | |
4181 | m68k_abspcadd = 1; | |
4182 | if (! m68k_rel32_from_cmdline) | |
4183 | m68k_rel32 = 0; | |
4184 | } | |
4185 | ||
60fed2d3 NC |
4186 | /* First sort the opcode table into alphabetical order to seperate |
4187 | the order that the assembler wants to see the opcodes from the | |
4188 | order that the disassembler wants to see them. */ | |
4189 | m68k_sorted_opcodes = xmalloc (m68k_numopcodes * sizeof (* m68k_sorted_opcodes)); | |
4190 | if (!m68k_sorted_opcodes) | |
4191 | as_fatal (_("Internal Error: Can't allocate m68k_sorted_opcodes of size %d"), | |
045b540e | 4192 | m68k_numopcodes * ((int) sizeof (* m68k_sorted_opcodes))); |
60fed2d3 NC |
4193 | |
4194 | for (i = m68k_numopcodes; i--;) | |
4195 | m68k_sorted_opcodes[i] = m68k_opcodes + i; | |
4196 | ||
4197 | qsort (m68k_sorted_opcodes, m68k_numopcodes, | |
4198 | sizeof (m68k_sorted_opcodes[0]), m68k_compare_opcode); | |
4199 | ||
252b5132 RH |
4200 | op_hash = hash_new (); |
4201 | ||
4202 | obstack_begin (&robyn, 4000); | |
4203 | for (i = 0; i < m68k_numopcodes; i++) | |
4204 | { | |
4205 | hack = slak = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
4206 | do | |
4207 | { | |
60fed2d3 NC |
4208 | ins = m68k_sorted_opcodes[i]; |
4209 | ||
4210 | /* We *could* ignore insns that don't match our | |
4211 | arch here by just leaving them out of the hash. */ | |
252b5132 RH |
4212 | slak->m_operands = ins->args; |
4213 | slak->m_opnum = strlen (slak->m_operands) / 2; | |
4214 | slak->m_arch = ins->arch; | |
4215 | slak->m_opcode = ins->opcode; | |
36759679 | 4216 | /* This is kludgey. */ |
252b5132 RH |
4217 | slak->m_codenum = ((ins->match) & 0xffffL) ? 2 : 1; |
4218 | if (i + 1 != m68k_numopcodes | |
60fed2d3 | 4219 | && !strcmp (ins->name, m68k_sorted_opcodes[i + 1]->name)) |
252b5132 | 4220 | { |
60fed2d3 | 4221 | slak->m_next = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4222 | i++; |
4223 | } | |
4224 | else | |
4225 | slak->m_next = 0; | |
4226 | slak = slak->m_next; | |
4227 | } | |
4228 | while (slak); | |
4229 | ||
4230 | retval = hash_insert (op_hash, ins->name, (char *) hack); | |
4231 | if (retval) | |
4232 | as_fatal (_("Internal Error: Can't hash %s: %s"), ins->name, retval); | |
4233 | } | |
4234 | ||
4235 | for (i = 0; i < m68k_numaliases; i++) | |
4236 | { | |
4237 | const char *name = m68k_opcode_aliases[i].primary; | |
4238 | const char *alias = m68k_opcode_aliases[i].alias; | |
4239 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4240 | |
252b5132 RH |
4241 | if (!val) |
4242 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4243 | retval = hash_insert (op_hash, alias, val); | |
4244 | if (retval) | |
4245 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4246 | } | |
4247 | ||
4248 | /* In MRI mode, all unsized branches are variable sized. Normally, | |
4249 | they are word sized. */ | |
4250 | if (flag_mri) | |
4251 | { | |
4252 | static struct m68k_opcode_alias mri_aliases[] = | |
4253 | { | |
4254 | { "bhi", "jhi", }, | |
4255 | { "bls", "jls", }, | |
4256 | { "bcc", "jcc", }, | |
4257 | { "bcs", "jcs", }, | |
4258 | { "bne", "jne", }, | |
4259 | { "beq", "jeq", }, | |
4260 | { "bvc", "jvc", }, | |
4261 | { "bvs", "jvs", }, | |
4262 | { "bpl", "jpl", }, | |
4263 | { "bmi", "jmi", }, | |
4264 | { "bge", "jge", }, | |
4265 | { "blt", "jlt", }, | |
4266 | { "bgt", "jgt", }, | |
4267 | { "ble", "jle", }, | |
4268 | { "bra", "jra", }, | |
4269 | { "bsr", "jbsr", }, | |
4270 | }; | |
4271 | ||
8fce3f5e AM |
4272 | for (i = 0; |
4273 | i < (int) (sizeof mri_aliases / sizeof mri_aliases[0]); | |
4274 | i++) | |
252b5132 RH |
4275 | { |
4276 | const char *name = mri_aliases[i].primary; | |
4277 | const char *alias = mri_aliases[i].alias; | |
4278 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4279 | |
252b5132 RH |
4280 | if (!val) |
4281 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4282 | retval = hash_jam (op_hash, alias, val); | |
4283 | if (retval) | |
4284 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4285 | } | |
4286 | } | |
4287 | ||
8fce3f5e | 4288 | for (i = 0; i < (int) sizeof (notend_table); i++) |
252b5132 RH |
4289 | { |
4290 | notend_table[i] = 0; | |
4291 | alt_notend_table[i] = 0; | |
4292 | } | |
60fed2d3 | 4293 | |
252b5132 RH |
4294 | notend_table[','] = 1; |
4295 | notend_table['{'] = 1; | |
4296 | notend_table['}'] = 1; | |
4297 | alt_notend_table['a'] = 1; | |
4298 | alt_notend_table['A'] = 1; | |
4299 | alt_notend_table['d'] = 1; | |
4300 | alt_notend_table['D'] = 1; | |
4301 | alt_notend_table['#'] = 1; | |
4302 | alt_notend_table['&'] = 1; | |
4303 | alt_notend_table['f'] = 1; | |
4304 | alt_notend_table['F'] = 1; | |
4305 | #ifdef REGISTER_PREFIX | |
4306 | alt_notend_table[REGISTER_PREFIX] = 1; | |
4307 | #endif | |
4308 | ||
4309 | /* We need to put '(' in alt_notend_table to handle | |
60fed2d3 | 4310 | cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) */ |
252b5132 RH |
4311 | alt_notend_table['('] = 1; |
4312 | ||
4313 | /* We need to put '@' in alt_notend_table to handle | |
60fed2d3 | 4314 | cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) */ |
252b5132 RH |
4315 | alt_notend_table['@'] = 1; |
4316 | ||
4317 | /* We need to put digits in alt_notend_table to handle | |
60fed2d3 | 4318 | bfextu %d0{24:1},%d0 */ |
252b5132 RH |
4319 | alt_notend_table['0'] = 1; |
4320 | alt_notend_table['1'] = 1; | |
4321 | alt_notend_table['2'] = 1; | |
4322 | alt_notend_table['3'] = 1; | |
4323 | alt_notend_table['4'] = 1; | |
4324 | alt_notend_table['5'] = 1; | |
4325 | alt_notend_table['6'] = 1; | |
4326 | alt_notend_table['7'] = 1; | |
4327 | alt_notend_table['8'] = 1; | |
4328 | alt_notend_table['9'] = 1; | |
4329 | ||
4330 | #ifndef MIT_SYNTAX_ONLY | |
4331 | /* Insert pseudo ops, these have to go into the opcode table since | |
36759679 | 4332 | gas expects pseudo ops to start with a dot. */ |
252b5132 RH |
4333 | { |
4334 | int n = 0; | |
60fed2d3 | 4335 | |
252b5132 RH |
4336 | while (mote_pseudo_table[n].poc_name) |
4337 | { | |
60fed2d3 | 4338 | hack = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4339 | hash_insert (op_hash, |
4340 | mote_pseudo_table[n].poc_name, (char *) hack); | |
4341 | hack->m_operands = 0; | |
4342 | hack->m_opnum = n; | |
4343 | n++; | |
4344 | } | |
4345 | } | |
4346 | #endif | |
4347 | ||
4348 | init_regtable (); | |
4349 | ||
4350 | #ifdef OBJ_ELF | |
4351 | record_alignment (text_section, 2); | |
4352 | record_alignment (data_section, 2); | |
4353 | record_alignment (bss_section, 2); | |
4354 | #endif | |
4355 | } | |
4356 | ||
252b5132 RH |
4357 | \f |
4358 | /* This is called when a label is defined. */ | |
4359 | ||
4360 | void | |
31302357 | 4361 | m68k_frob_label (symbolS *sym) |
252b5132 RH |
4362 | { |
4363 | struct label_line *n; | |
4364 | ||
4365 | n = (struct label_line *) xmalloc (sizeof *n); | |
4366 | n->next = labels; | |
4367 | n->label = sym; | |
4368 | as_where (&n->file, &n->line); | |
4369 | n->text = 0; | |
4370 | labels = n; | |
4371 | current_label = n; | |
07a53e5c RH |
4372 | |
4373 | #ifdef OBJ_ELF | |
4374 | dwarf2_emit_label (sym); | |
4375 | #endif | |
252b5132 RH |
4376 | } |
4377 | ||
4378 | /* This is called when a value that is not an instruction is emitted. */ | |
4379 | ||
4380 | void | |
31302357 | 4381 | m68k_flush_pending_output (void) |
252b5132 RH |
4382 | { |
4383 | current_label = NULL; | |
4384 | } | |
4385 | ||
4386 | /* This is called at the end of the assembly, when the final value of | |
4387 | the label is known. We warn if this is a text symbol aligned at an | |
4388 | odd location. */ | |
4389 | ||
4390 | void | |
31302357 | 4391 | m68k_frob_symbol (symbolS *sym) |
252b5132 RH |
4392 | { |
4393 | if (S_GET_SEGMENT (sym) == reg_section | |
4394 | && (int) S_GET_VALUE (sym) < 0) | |
4395 | { | |
4396 | S_SET_SEGMENT (sym, absolute_section); | |
4397 | S_SET_VALUE (sym, ~(int)S_GET_VALUE (sym)); | |
4398 | } | |
4399 | else if ((S_GET_VALUE (sym) & 1) != 0) | |
4400 | { | |
4401 | struct label_line *l; | |
4402 | ||
4403 | for (l = labels; l != NULL; l = l->next) | |
4404 | { | |
4405 | if (l->label == sym) | |
4406 | { | |
4407 | if (l->text) | |
4408 | as_warn_where (l->file, l->line, | |
4409 | _("text label `%s' aligned to odd boundary"), | |
4410 | S_GET_NAME (sym)); | |
4411 | break; | |
4412 | } | |
4413 | } | |
4414 | } | |
4415 | } | |
4416 | \f | |
4417 | /* This is called if we go in or out of MRI mode because of the .mri | |
4418 | pseudo-op. */ | |
4419 | ||
4420 | void | |
31302357 | 4421 | m68k_mri_mode_change (int on) |
252b5132 RH |
4422 | { |
4423 | if (on) | |
4424 | { | |
4425 | if (! flag_reg_prefix_optional) | |
4426 | { | |
4427 | flag_reg_prefix_optional = 1; | |
4428 | #ifdef REGISTER_PREFIX | |
4429 | init_regtable (); | |
4430 | #endif | |
4431 | } | |
4432 | m68k_abspcadd = 1; | |
4433 | if (! m68k_rel32_from_cmdline) | |
4434 | m68k_rel32 = 0; | |
4435 | } | |
4436 | else | |
4437 | { | |
4438 | if (! reg_prefix_optional_seen) | |
4439 | { | |
4440 | #ifdef REGISTER_PREFIX_OPTIONAL | |
4441 | flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
4442 | #else | |
4443 | flag_reg_prefix_optional = 0; | |
4444 | #endif | |
4445 | #ifdef REGISTER_PREFIX | |
4446 | init_regtable (); | |
4447 | #endif | |
4448 | } | |
4449 | m68k_abspcadd = 0; | |
4450 | if (! m68k_rel32_from_cmdline) | |
4451 | m68k_rel32 = 1; | |
4452 | } | |
4453 | } | |
4454 | ||
36759679 | 4455 | /* Equal to MAX_PRECISION in atof-ieee.c. */ |
252b5132 RH |
4456 | #define MAX_LITTLENUMS 6 |
4457 | ||
4458 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4459 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4460 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4461 | returned, or NULL on OK. */ |
4462 | ||
4463 | char * | |
31302357 | 4464 | md_atof (int type, char *litP, int *sizeP) |
252b5132 RH |
4465 | { |
4466 | int prec; | |
4467 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
4468 | LITTLENUM_TYPE *wordP; | |
4469 | char *t; | |
4470 | ||
4471 | switch (type) | |
4472 | { | |
4473 | case 'f': | |
4474 | case 'F': | |
4475 | case 's': | |
4476 | case 'S': | |
4477 | prec = 2; | |
4478 | break; | |
4479 | ||
4480 | case 'd': | |
4481 | case 'D': | |
4482 | case 'r': | |
4483 | case 'R': | |
4484 | prec = 4; | |
4485 | break; | |
4486 | ||
4487 | case 'x': | |
4488 | case 'X': | |
4489 | prec = 6; | |
4490 | break; | |
4491 | ||
4492 | case 'p': | |
4493 | case 'P': | |
4494 | prec = 6; | |
4495 | break; | |
4496 | ||
4497 | default: | |
4498 | *sizeP = 0; | |
4499 | return _("Bad call to MD_ATOF()"); | |
4500 | } | |
4501 | t = atof_ieee (input_line_pointer, type, words); | |
4502 | if (t) | |
4503 | input_line_pointer = t; | |
4504 | ||
4505 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
4506 | for (wordP = words; prec--;) | |
4507 | { | |
4508 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
4509 | litP += sizeof (LITTLENUM_TYPE); | |
4510 | } | |
4511 | return 0; | |
4512 | } | |
4513 | ||
4514 | void | |
31302357 | 4515 | md_number_to_chars (char *buf, valueT val, int n) |
252b5132 RH |
4516 | { |
4517 | number_to_chars_bigendian (buf, val, n); | |
4518 | } | |
4519 | ||
94f592af | 4520 | void |
55cf6793 | 4521 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 4522 | { |
bbe8ef22 | 4523 | offsetT val = *valP; |
252b5132 RH |
4524 | addressT upper_limit; |
4525 | offsetT lower_limit; | |
4526 | ||
4527 | /* This is unnecessary but it convinces the native rs6000 compiler | |
4528 | to generate the code we want. */ | |
4529 | char *buf = fixP->fx_frag->fr_literal; | |
4530 | buf += fixP->fx_where; | |
36759679 | 4531 | /* End ibm compiler workaround. */ |
252b5132 | 4532 | |
bd17c2c3 | 4533 | val = SEXT (val); |
252b5132 | 4534 | |
94f592af NC |
4535 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
4536 | fixP->fx_done = 1; | |
4537 | ||
252b5132 RH |
4538 | #ifdef OBJ_ELF |
4539 | if (fixP->fx_addsy) | |
4540 | { | |
4541 | memset (buf, 0, fixP->fx_size); | |
36759679 | 4542 | fixP->fx_addnumber = val; /* Remember value for emit_reloc. */ |
252b5132 RH |
4543 | |
4544 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4545 | && !S_IS_DEFINED (fixP->fx_addsy) | |
4546 | && !S_IS_WEAK (fixP->fx_addsy)) | |
4547 | S_SET_WEAK (fixP->fx_addsy); | |
4548 | return; | |
4549 | } | |
4550 | #endif | |
4551 | ||
252b5132 RH |
4552 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
4553 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4554 | return; | |
252b5132 RH |
4555 | |
4556 | switch (fixP->fx_size) | |
4557 | { | |
94f592af NC |
4558 | /* The cast to offsetT below are necessary to make code |
4559 | correct for machines where ints are smaller than offsetT. */ | |
252b5132 RH |
4560 | case 1: |
4561 | *buf++ = val; | |
4562 | upper_limit = 0x7f; | |
4563 | lower_limit = - (offsetT) 0x80; | |
4564 | break; | |
4565 | case 2: | |
4566 | *buf++ = (val >> 8); | |
4567 | *buf++ = val; | |
4568 | upper_limit = 0x7fff; | |
4569 | lower_limit = - (offsetT) 0x8000; | |
4570 | break; | |
4571 | case 4: | |
4572 | *buf++ = (val >> 24); | |
4573 | *buf++ = (val >> 16); | |
4574 | *buf++ = (val >> 8); | |
4575 | *buf++ = val; | |
4576 | upper_limit = 0x7fffffff; | |
36759679 | 4577 | lower_limit = - (offsetT) 0x7fffffff - 1; /* Avoid constant overflow. */ |
252b5132 RH |
4578 | break; |
4579 | default: | |
4580 | BAD_CASE (fixP->fx_size); | |
4581 | } | |
4582 | ||
4583 | /* Fix up a negative reloc. */ | |
4584 | if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL) | |
4585 | { | |
4586 | fixP->fx_addsy = fixP->fx_subsy; | |
4587 | fixP->fx_subsy = NULL; | |
4588 | fixP->fx_tcbit = 1; | |
4589 | } | |
4590 | ||
4591 | /* For non-pc-relative values, it's conceivable we might get something | |
4592 | like "0xff" for a byte field. So extend the upper part of the range | |
4593 | to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", | |
4594 | so that we can do any range checking at all. */ | |
4595 | if (! fixP->fx_pcrel && ! fixP->fx_signed) | |
4596 | upper_limit = upper_limit * 2 + 1; | |
4597 | ||
4598 | if ((addressT) val > upper_limit | |
4599 | && (val > 0 || val < lower_limit)) | |
4600 | as_bad_where (fixP->fx_file, fixP->fx_line, _("value out of range")); | |
4601 | ||
4602 | /* A one byte PC-relative reloc means a short branch. We can't use | |
4603 | a short branch with a value of 0 or -1, because those indicate | |
4604 | different opcodes (branches with longer offsets). fixup_segment | |
4605 | in write.c may have clobbered fx_pcrel, so we need to examine the | |
4606 | reloc type. */ | |
4607 | if ((fixP->fx_pcrel | |
7be1c489 | 4608 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) |
252b5132 RH |
4609 | && fixP->fx_size == 1 |
4610 | && (fixP->fx_addsy == NULL | |
4611 | || S_IS_DEFINED (fixP->fx_addsy)) | |
4612 | && (val == 0 || val == -1)) | |
4613 | as_bad_where (fixP->fx_file, fixP->fx_line, _("invalid byte branch offset")); | |
4614 | } | |
4615 | ||
252b5132 RH |
4616 | /* *fragP has been relaxed to its final size, and now needs to have |
4617 | the bytes inside it modified to conform to the new size There is UGLY | |
4618 | MAGIC here. .. | |
4619 | */ | |
4620 | static void | |
31302357 | 4621 | md_convert_frag_1 (fragS *fragP) |
252b5132 RH |
4622 | { |
4623 | long disp; | |
252b5132 RH |
4624 | fixS *fixP; |
4625 | ||
4626 | /* Address in object code of the displacement. */ | |
4627 | register int object_address = fragP->fr_fix + fragP->fr_address; | |
4628 | ||
4629 | /* Address in gas core of the place to store the displacement. */ | |
4630 | /* This convinces the native rs6000 compiler to generate the code we | |
92774660 | 4631 | want. */ |
252b5132 RH |
4632 | register char *buffer_address = fragP->fr_literal; |
4633 | buffer_address += fragP->fr_fix; | |
36759679 | 4634 | /* End ibm compiler workaround. */ |
252b5132 RH |
4635 | |
4636 | /* The displacement of the address, from current location. */ | |
4637 | disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0; | |
4638 | disp = (disp + fragP->fr_offset) - object_address; | |
4639 | ||
252b5132 RH |
4640 | switch (fragP->fr_subtype) |
4641 | { | |
151337e8 NC |
4642 | case TAB (BRANCHBWL, BYTE): |
4643 | case TAB (BRABSJUNC, BYTE): | |
4644 | case TAB (BRABSJCOND, BYTE): | |
4645 | case TAB (BRANCHBW, BYTE): | |
252b5132 RH |
4646 | know (issbyte (disp)); |
4647 | if (disp == 0) | |
b091f402 AM |
4648 | as_bad_where (fragP->fr_file, fragP->fr_line, |
4649 | _("short branch with zero offset: use :w")); | |
151337e8 | 4650 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4651 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4652 | fixP->fx_pcrel_adjust = -1; |
252b5132 | 4653 | break; |
151337e8 NC |
4654 | case TAB (BRANCHBWL, SHORT): |
4655 | case TAB (BRABSJUNC, SHORT): | |
4656 | case TAB (BRABSJCOND, SHORT): | |
4657 | case TAB (BRANCHBW, SHORT): | |
252b5132 | 4658 | fragP->fr_opcode[1] = 0x00; |
151337e8 | 4659 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4660 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4661 | fragP->fr_fix += 2; |
4662 | break; | |
4663 | case TAB (BRANCHBWL, LONG): | |
4664 | fragP->fr_opcode[1] = (char) 0xFF; | |
4665 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4666 | 1, RELAX_RELOC_PC32); |
151337e8 | 4667 | fragP->fr_fix += 4; |
252b5132 | 4668 | break; |
151337e8 NC |
4669 | case TAB (BRABSJUNC, LONG): |
4670 | if (fragP->fr_opcode[0] == 0x61) /* jbsr */ | |
252b5132 | 4671 | { |
36759679 | 4672 | if (flag_keep_pcrel) |
6b6e92f4 | 4673 | as_fatal (_("Tried to convert PC relative BSR to absolute JSR")); |
151337e8 | 4674 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4675 | fragP->fr_opcode[1] = (char) 0xB9; /* JSR with ABSL LONG operand. */ |
151337e8 | 4676 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
3ae647a0 | 4677 | 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4678 | fragP->fr_fix += 4; |
4679 | } | |
4680 | else if (fragP->fr_opcode[0] == 0x60) /* jbra */ | |
4681 | { | |
36759679 | 4682 | if (flag_keep_pcrel) |
6b6e92f4 | 4683 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
151337e8 | 4684 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4685 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG operand. */ |
151337e8 | 4686 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4687 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4688 | fragP->fr_fix += 4; |
252b5132 RH |
4689 | } |
4690 | else | |
4691 | { | |
151337e8 NC |
4692 | /* This cannot happen, because jbsr and jbra are the only two |
4693 | unconditional branches. */ | |
4694 | abort (); | |
252b5132 RH |
4695 | } |
4696 | break; | |
151337e8 | 4697 | case TAB (BRABSJCOND, LONG): |
36759679 | 4698 | if (flag_keep_pcrel) |
6b6e92f4 | 4699 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
92774660 | 4700 | |
36759679 NC |
4701 | /* Only Bcc 68000 instructions can come here |
4702 | Change bcc into b!cc/jmp absl long. */ | |
4703 | fragP->fr_opcode[0] ^= 0x01; /* Invert bcc. */ | |
4704 | fragP->fr_opcode[1] = 0x06; /* Branch offset = 6. */ | |
252b5132 RH |
4705 | |
4706 | /* JF: these used to be fr_opcode[2,3], but they may be in a | |
67c1ffbe | 4707 | different frag, in which case referring to them is a no-no. |
92774660 | 4708 | Only fr_opcode[0,1] are guaranteed to work. */ |
252b5132 RH |
4709 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ |
4710 | *buffer_address++ = (char) 0xf9; | |
36759679 | 4711 | fragP->fr_fix += 2; /* Account for jmp instruction. */ |
252b5132 | 4712 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
5cbdaa77 | 4713 | fragP->fr_offset, 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4714 | fragP->fr_fix += 4; |
4715 | break; | |
4716 | case TAB (FBRANCH, SHORT): | |
4717 | know ((fragP->fr_opcode[1] & 0x40) == 0); | |
4718 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4719 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4720 | fragP->fr_fix += 2; |
4721 | break; | |
4722 | case TAB (FBRANCH, LONG): | |
36759679 | 4723 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit. */ |
151337e8 | 4724 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4725 | 1, RELAX_RELOC_PC32); |
252b5132 | 4726 | fragP->fr_fix += 4; |
252b5132 | 4727 | break; |
151337e8 NC |
4728 | case TAB (DBCCLBR, SHORT): |
4729 | case TAB (DBCCABSJ, SHORT): | |
4730 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4731 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4732 | fragP->fr_fix += 2; |
4733 | break; | |
4734 | case TAB (DBCCLBR, LONG): | |
36759679 NC |
4735 | /* Only DBcc instructions can come here. |
4736 | Change dbcc into dbcc/bral. | |
4737 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4738 | if (flag_keep_pcrel) | |
6b6e92f4 | 4739 | as_fatal (_("Tried to convert DBcc to absolute jump")); |
28e7409f | 4740 | |
36759679 | 4741 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
252b5132 | 4742 | *buffer_address++ = 0x04; |
36759679 | 4743 | *buffer_address++ = 0x60; /* Put in bra pc+6. */ |
252b5132 | 4744 | *buffer_address++ = 0x06; |
151337e8 NC |
4745 | *buffer_address++ = 0x60; /* Put in bral (0x60ff). */ |
4746 | *buffer_address++ = (char) 0xff; | |
252b5132 | 4747 | |
36759679 | 4748 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4749 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 1, |
5cbdaa77 | 4750 | RELAX_RELOC_PC32); |
252b5132 | 4751 | fragP->fr_fix += 4; |
252b5132 | 4752 | break; |
151337e8 | 4753 | case TAB (DBCCABSJ, LONG): |
36759679 NC |
4754 | /* Only DBcc instructions can come here. |
4755 | Change dbcc into dbcc/jmp. | |
4756 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4757 | if (flag_keep_pcrel) | |
6b6e92f4 | 4758 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4759 | |
36759679 | 4760 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
151337e8 | 4761 | *buffer_address++ = 0x04; |
36759679 | 4762 | *buffer_address++ = 0x60; /* Put in bra pc + 6. */ |
151337e8 | 4763 | *buffer_address++ = 0x06; |
36759679 | 4764 | *buffer_address++ = 0x4e; /* Put in jmp long (0x4ef9). */ |
151337e8 NC |
4765 | *buffer_address++ = (char) 0xf9; |
4766 | ||
36759679 | 4767 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4768 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 0, |
5cbdaa77 | 4769 | RELAX_RELOC_ABS32); |
252b5132 | 4770 | fragP->fr_fix += 4; |
252b5132 | 4771 | break; |
151337e8 | 4772 | case TAB (PCREL1632, SHORT): |
252b5132 RH |
4773 | fragP->fr_opcode[1] &= ~0x3F; |
4774 | fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */ | |
151337e8 | 4775 | fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, |
5cbdaa77 | 4776 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
151337e8 | 4777 | fragP->fr_fix += 2; |
252b5132 | 4778 | break; |
151337e8 | 4779 | case TAB (PCREL1632, LONG): |
252b5132 RH |
4780 | /* Already set to mode 7.3; this indicates: PC indirect with |
4781 | suppressed index, 32-bit displacement. */ | |
4782 | *buffer_address++ = 0x01; | |
4783 | *buffer_address++ = 0x70; | |
4784 | fragP->fr_fix += 2; | |
151337e8 | 4785 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4786 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4787 | fixP->fx_pcrel_adjust = 2; |
4788 | fragP->fr_fix += 4; | |
252b5132 | 4789 | break; |
252b5132 | 4790 | case TAB (PCINDEX, BYTE): |
252b5132 RH |
4791 | assert (fragP->fr_fix >= 2); |
4792 | buffer_address[-2] &= ~1; | |
151337e8 | 4793 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4794 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4795 | fixP->fx_pcrel_adjust = 1; |
252b5132 RH |
4796 | break; |
4797 | case TAB (PCINDEX, SHORT): | |
252b5132 RH |
4798 | assert (fragP->fr_fix >= 2); |
4799 | buffer_address[-2] |= 0x1; | |
4800 | buffer_address[-1] = 0x20; | |
4801 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, | |
5cbdaa77 | 4802 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
252b5132 | 4803 | fixP->fx_pcrel_adjust = 2; |
151337e8 | 4804 | fragP->fr_fix += 2; |
252b5132 RH |
4805 | break; |
4806 | case TAB (PCINDEX, LONG): | |
252b5132 RH |
4807 | assert (fragP->fr_fix >= 2); |
4808 | buffer_address[-2] |= 0x1; | |
4809 | buffer_address[-1] = 0x30; | |
151337e8 | 4810 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4811 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4812 | fixP->fx_pcrel_adjust = 2; |
4813 | fragP->fr_fix += 4; | |
4814 | break; | |
4815 | case TAB (ABSTOPCREL, SHORT): | |
4816 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4817 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4818 | fragP->fr_fix += 2; |
4819 | break; | |
4820 | case TAB (ABSTOPCREL, LONG): | |
36759679 | 4821 | if (flag_keep_pcrel) |
6b6e92f4 | 4822 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4823 | /* The thing to do here is force it to ABSOLUTE LONG, since |
36759679 | 4824 | ABSTOPCREL is really trying to shorten an ABSOLUTE address anyway. */ |
151337e8 NC |
4825 | if ((fragP->fr_opcode[1] & 0x3F) != 0x3A) |
4826 | abort (); | |
4827 | fragP->fr_opcode[1] &= ~0x3F; | |
4828 | fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */ | |
4829 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4830 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4831 | fragP->fr_fix += 4; |
252b5132 | 4832 | break; |
252b5132 RH |
4833 | } |
4834 | } | |
4835 | ||
252b5132 | 4836 | void |
31302357 AS |
4837 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
4838 | segT sec ATTRIBUTE_UNUSED, | |
4839 | fragS *fragP) | |
252b5132 RH |
4840 | { |
4841 | md_convert_frag_1 (fragP); | |
4842 | } | |
252b5132 RH |
4843 | |
4844 | /* Force truly undefined symbols to their maximum size, and generally set up | |
4845 | the frag list to be relaxed | |
4846 | */ | |
4847 | int | |
31302357 | 4848 | md_estimate_size_before_relax (fragS *fragP, segT segment) |
252b5132 | 4849 | { |
151337e8 | 4850 | /* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */ |
252b5132 RH |
4851 | switch (fragP->fr_subtype) |
4852 | { | |
151337e8 NC |
4853 | case TAB (BRANCHBWL, SZ_UNDEF): |
4854 | case TAB (BRABSJUNC, SZ_UNDEF): | |
151337e8 | 4855 | case TAB (BRABSJCOND, SZ_UNDEF): |
252b5132 | 4856 | { |
151337e8 NC |
4857 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4858 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4859 | { |
151337e8 NC |
4860 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
4861 | } | |
4862 | else if (flag_short_refs) | |
4863 | { | |
4864 | /* Symbol is undefined and we want short ref. */ | |
4865 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4866 | } |
4867 | else | |
4868 | { | |
151337e8 NC |
4869 | /* Symbol is still undefined. Make it LONG. */ |
4870 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); | |
252b5132 RH |
4871 | } |
4872 | break; | |
151337e8 | 4873 | } |
252b5132 | 4874 | |
151337e8 | 4875 | case TAB (BRANCHBW, SZ_UNDEF): |
252b5132 | 4876 | { |
151337e8 NC |
4877 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4878 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4879 | { |
151337e8 | 4880 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
252b5132 RH |
4881 | } |
4882 | else | |
4883 | { | |
151337e8 NC |
4884 | /* Symbol is undefined and we don't have long branches. */ |
4885 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4886 | } |
4887 | break; | |
151337e8 | 4888 | } |
252b5132 | 4889 | |
151337e8 | 4890 | case TAB (FBRANCH, SZ_UNDEF): |
151337e8 NC |
4891 | case TAB (DBCCLBR, SZ_UNDEF): |
4892 | case TAB (DBCCABSJ, SZ_UNDEF): | |
5c65dbc1 | 4893 | case TAB (PCREL1632, SZ_UNDEF): |
252b5132 | 4894 | { |
8ec6253e NC |
4895 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment |
4896 | && relaxable_symbol (fragP->fr_symbol)) | |
151337e8 | 4897 | || flag_short_refs) |
252b5132 | 4898 | { |
151337e8 | 4899 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); |
252b5132 RH |
4900 | } |
4901 | else | |
4902 | { | |
151337e8 | 4903 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); |
252b5132 RH |
4904 | } |
4905 | break; | |
151337e8 | 4906 | } |
81d4177b | 4907 | |
252b5132 RH |
4908 | case TAB (PCINDEX, SZ_UNDEF): |
4909 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
151337e8 | 4910 | && relaxable_symbol (fragP->fr_symbol))) |
252b5132 RH |
4911 | { |
4912 | fragP->fr_subtype = TAB (PCINDEX, BYTE); | |
4913 | } | |
4914 | else | |
4915 | { | |
4916 | fragP->fr_subtype = TAB (PCINDEX, LONG); | |
252b5132 RH |
4917 | } |
4918 | break; | |
4919 | ||
151337e8 NC |
4920 | case TAB (ABSTOPCREL, SZ_UNDEF): |
4921 | { | |
4922 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
4923 | && relaxable_symbol (fragP->fr_symbol))) | |
4924 | { | |
4925 | fragP->fr_subtype = TAB (ABSTOPCREL, SHORT); | |
151337e8 NC |
4926 | } |
4927 | else | |
4928 | { | |
4929 | fragP->fr_subtype = TAB (ABSTOPCREL, LONG); | |
151337e8 NC |
4930 | } |
4931 | break; | |
4932 | } | |
4933 | ||
252b5132 RH |
4934 | default: |
4935 | break; | |
4936 | } | |
4937 | ||
151337e8 | 4938 | /* Now that SZ_UNDEF are taken care of, check others. */ |
252b5132 RH |
4939 | switch (fragP->fr_subtype) |
4940 | { | |
151337e8 NC |
4941 | case TAB (BRANCHBWL, BYTE): |
4942 | case TAB (BRABSJUNC, BYTE): | |
4943 | case TAB (BRABSJCOND, BYTE): | |
4944 | case TAB (BRANCHBW, BYTE): | |
252b5132 | 4945 | /* We can't do a short jump to the next instruction, so in that |
ac62c346 AM |
4946 | case we force word mode. If the symbol is at the start of a |
4947 | frag, and it is the next frag with any data in it (usually | |
4948 | this is just the next frag, but assembler listings may | |
4949 | introduce empty frags), we must use word mode. */ | |
4950 | if (fragP->fr_symbol) | |
252b5132 | 4951 | { |
ac62c346 | 4952 | fragS *sym_frag; |
252b5132 | 4953 | |
ac62c346 AM |
4954 | sym_frag = symbol_get_frag (fragP->fr_symbol); |
4955 | if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address) | |
252b5132 | 4956 | { |
ac62c346 AM |
4957 | fragS *l; |
4958 | ||
23b7f870 | 4959 | for (l = fragP->fr_next; l && l != sym_frag; l = l->fr_next) |
ac62c346 AM |
4960 | if (l->fr_fix != 0) |
4961 | break; | |
4962 | if (l == sym_frag) | |
4963 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4964 | } |
4965 | } | |
4966 | break; | |
4967 | default: | |
4968 | break; | |
4969 | } | |
ac62c346 | 4970 | return md_relax_table[fragP->fr_subtype].rlx_length; |
252b5132 RH |
4971 | } |
4972 | ||
4973 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
4974 | /* the bit-field entries in the relocation_info struct plays hell | |
4975 | with the byte-order problems of cross-assembly. So as a hack, | |
4976 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
36759679 | 4977 | you there. -KWK */ |
252b5132 RH |
4978 | /* on m68k: first 4 bytes are normal unsigned long, next three bytes |
4979 | are symbolnum, most sig. byte first. Last byte is broken up with | |
4980 | bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower | |
4981 | nibble as nuthin. (on Sun 3 at least) */ | |
4982 | /* Translate the internal relocation information into target-specific | |
92774660 | 4983 | format. */ |
252b5132 RH |
4984 | #ifdef comment |
4985 | void | |
31302357 | 4986 | md_ri_to_chars (char *the_bytes, struct reloc_info_generic *ri) |
252b5132 | 4987 | { |
36759679 | 4988 | /* This is easy. */ |
252b5132 | 4989 | md_number_to_chars (the_bytes, ri->r_address, 4); |
36759679 | 4990 | /* Now the fun stuff. */ |
252b5132 | 4991 | the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff; |
36759679 NC |
4992 | the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff; |
4993 | the_bytes[6] = ri->r_symbolnum & 0x0ff; | |
31302357 AS |
4994 | the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) |
4995 | | ((ri->r_length << 5) & 0x60) | |
4996 | | ((ri->r_extern << 4) & 0x10)); | |
252b5132 RH |
4997 | } |
4998 | ||
36759679 | 4999 | #endif |
252b5132 | 5000 | |
252b5132 RH |
5001 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
5002 | ||
5003 | #ifndef WORKING_DOT_WORD | |
2b4f075a HPN |
5004 | int md_short_jump_size = 4; |
5005 | int md_long_jump_size = 6; | |
252b5132 RH |
5006 | |
5007 | void | |
31302357 AS |
5008 | md_create_short_jump (char *ptr, addressT from_addr, addressT to_addr, |
5009 | fragS *frag ATTRIBUTE_UNUSED, | |
5010 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
5011 | { |
5012 | valueT offset; | |
5013 | ||
5014 | offset = to_addr - (from_addr + 2); | |
5015 | ||
5016 | md_number_to_chars (ptr, (valueT) 0x6000, 2); | |
5017 | md_number_to_chars (ptr + 2, (valueT) offset, 2); | |
5018 | } | |
5019 | ||
5020 | void | |
31302357 AS |
5021 | md_create_long_jump (char *ptr, addressT from_addr, addressT to_addr, |
5022 | fragS *frag, symbolS *to_symbol) | |
252b5132 RH |
5023 | { |
5024 | valueT offset; | |
5025 | ||
6b6e92f4 | 5026 | if (!HAVE_LONG_BRANCH (current_architecture)) |
252b5132 | 5027 | { |
36759679 | 5028 | if (flag_keep_pcrel) |
6b6e92f4 | 5029 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
252b5132 RH |
5030 | offset = to_addr - S_GET_VALUE (to_symbol); |
5031 | md_number_to_chars (ptr, (valueT) 0x4EF9, 2); | |
5032 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5033 | fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0, | |
5034 | 0, NO_RELOC); | |
5035 | } | |
5036 | else | |
5037 | { | |
5038 | offset = to_addr - (from_addr + 2); | |
5039 | md_number_to_chars (ptr, (valueT) 0x60ff, 2); | |
5040 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5041 | } | |
5042 | } | |
5043 | ||
5044 | #endif | |
5045 | ||
5046 | /* Different values of OK tell what its OK to return. Things that | |
5047 | aren't OK are an error (what a shock, no?) | |
5048 | ||
5049 | 0: Everything is OK | |
3e602632 NC |
5050 | 10: Absolute 1:8 only |
5051 | 20: Absolute 0:7 only | |
5052 | 30: absolute 0:15 only | |
5053 | 40: Absolute 0:31 only | |
5054 | 50: absolute 0:127 only | |
252b5132 | 5055 | 55: absolute -64:63 only |
3e602632 NC |
5056 | 60: absolute -128:127 only |
5057 | 70: absolute 0:4095 only | |
5058 | 80: absolute -1, 1:7 only | |
5059 | 90: No bignums. */ | |
252b5132 RH |
5060 | |
5061 | static int | |
31302357 | 5062 | get_num (struct m68k_exp *exp, int ok) |
252b5132 RH |
5063 | { |
5064 | if (exp->exp.X_op == O_absent) | |
5065 | { | |
36759679 | 5066 | /* Do the same thing the VAX asm does. */ |
252b5132 RH |
5067 | op (exp) = O_constant; |
5068 | adds (exp) = 0; | |
5069 | subs (exp) = 0; | |
5070 | offs (exp) = 0; | |
5071 | if (ok == 10) | |
5072 | { | |
5073 | as_warn (_("expression out of range: defaulting to 1")); | |
5074 | offs (exp) = 1; | |
5075 | } | |
5076 | } | |
5077 | else if (exp->exp.X_op == O_constant) | |
5078 | { | |
5079 | switch (ok) | |
5080 | { | |
5081 | case 10: | |
bd17c2c3 | 5082 | if ((valueT) TRUNC (offs (exp)) - 1 > 7) |
252b5132 RH |
5083 | { |
5084 | as_warn (_("expression out of range: defaulting to 1")); | |
5085 | offs (exp) = 1; | |
5086 | } | |
5087 | break; | |
5088 | case 20: | |
bd17c2c3 | 5089 | if ((valueT) TRUNC (offs (exp)) > 7) |
252b5132 RH |
5090 | goto outrange; |
5091 | break; | |
5092 | case 30: | |
bd17c2c3 | 5093 | if ((valueT) TRUNC (offs (exp)) > 15) |
252b5132 RH |
5094 | goto outrange; |
5095 | break; | |
5096 | case 40: | |
bd17c2c3 | 5097 | if ((valueT) TRUNC (offs (exp)) > 32) |
252b5132 RH |
5098 | goto outrange; |
5099 | break; | |
5100 | case 50: | |
bd17c2c3 | 5101 | if ((valueT) TRUNC (offs (exp)) > 127) |
252b5132 RH |
5102 | goto outrange; |
5103 | break; | |
5104 | case 55: | |
bd17c2c3 | 5105 | if ((valueT) SEXT (offs (exp)) + 64 > 127) |
252b5132 RH |
5106 | goto outrange; |
5107 | break; | |
5108 | case 60: | |
bd17c2c3 | 5109 | if ((valueT) SEXT (offs (exp)) + 128 > 255) |
252b5132 RH |
5110 | goto outrange; |
5111 | break; | |
5112 | case 70: | |
bd17c2c3 | 5113 | if ((valueT) TRUNC (offs (exp)) > 4095) |
252b5132 RH |
5114 | { |
5115 | outrange: | |
5116 | as_warn (_("expression out of range: defaulting to 0")); | |
5117 | offs (exp) = 0; | |
5118 | } | |
5119 | break; | |
3e602632 | 5120 | case 80: |
bd17c2c3 AM |
5121 | if ((valueT) TRUNC (offs (exp)) != 0xffffffff |
5122 | && (valueT) TRUNC (offs (exp)) - 1 > 6) | |
3e602632 NC |
5123 | { |
5124 | as_warn (_("expression out of range: defaulting to 1")); | |
5125 | offs (exp) = 1; | |
5126 | } | |
5127 | break; | |
252b5132 RH |
5128 | default: |
5129 | break; | |
5130 | } | |
5131 | } | |
5132 | else if (exp->exp.X_op == O_big) | |
5133 | { | |
36759679 | 5134 | if (offs (exp) <= 0 /* flonum. */ |
3e602632 | 5135 | && (ok == 90 /* no bignums */ |
36759679 | 5136 | || (ok > 10 /* Small-int ranges including 0 ok. */ |
252b5132 RH |
5137 | /* If we have a flonum zero, a zero integer should |
5138 | do as well (e.g., in moveq). */ | |
5139 | && generic_floating_point_number.exponent == 0 | |
5140 | && generic_floating_point_number.low[0] == 0))) | |
5141 | { | |
36759679 | 5142 | /* HACK! Turn it into a long. */ |
252b5132 RH |
5143 | LITTLENUM_TYPE words[6]; |
5144 | ||
36759679 | 5145 | gen_to_words (words, 2, 8L); /* These numbers are magic! */ |
252b5132 RH |
5146 | op (exp) = O_constant; |
5147 | adds (exp) = 0; | |
5148 | subs (exp) = 0; | |
5149 | offs (exp) = words[1] | (words[0] << 16); | |
5150 | } | |
5151 | else if (ok != 0) | |
5152 | { | |
5153 | op (exp) = O_constant; | |
5154 | adds (exp) = 0; | |
5155 | subs (exp) = 0; | |
5156 | offs (exp) = (ok == 10) ? 1 : 0; | |
5157 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
045b540e | 5158 | (long) offs (exp)); |
252b5132 RH |
5159 | } |
5160 | } | |
5161 | else | |
5162 | { | |
3e602632 | 5163 | if (ok >= 10 && ok <= 80) |
252b5132 RH |
5164 | { |
5165 | op (exp) = O_constant; | |
5166 | adds (exp) = 0; | |
5167 | subs (exp) = 0; | |
5168 | offs (exp) = (ok == 10) ? 1 : 0; | |
5169 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
045b540e | 5170 | (long) offs (exp)); |
252b5132 RH |
5171 | } |
5172 | } | |
5173 | ||
5174 | if (exp->size != SIZE_UNSPEC) | |
5175 | { | |
5176 | switch (exp->size) | |
5177 | { | |
5178 | case SIZE_UNSPEC: | |
5179 | case SIZE_LONG: | |
5180 | break; | |
5181 | case SIZE_BYTE: | |
5182 | if (!isbyte (offs (exp))) | |
5183 | as_warn (_("expression doesn't fit in BYTE")); | |
5184 | break; | |
5185 | case SIZE_WORD: | |
5186 | if (!isword (offs (exp))) | |
5187 | as_warn (_("expression doesn't fit in WORD")); | |
5188 | break; | |
5189 | } | |
5190 | } | |
5191 | ||
5192 | return offs (exp); | |
5193 | } | |
5194 | ||
5195 | /* These are the back-ends for the various machine dependent pseudo-ops. */ | |
5196 | ||
5197 | static void | |
31302357 | 5198 | s_data1 (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5199 | { |
5200 | subseg_set (data_section, 1); | |
5201 | demand_empty_rest_of_line (); | |
5202 | } | |
5203 | ||
5204 | static void | |
31302357 | 5205 | s_data2 (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5206 | { |
5207 | subseg_set (data_section, 2); | |
5208 | demand_empty_rest_of_line (); | |
5209 | } | |
5210 | ||
5211 | static void | |
31302357 | 5212 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5213 | { |
5214 | /* We don't support putting frags in the BSS segment, we fake it | |
5215 | by marking in_bss, then looking at s_skip for clues. */ | |
5216 | ||
5217 | subseg_set (bss_section, 0); | |
5218 | demand_empty_rest_of_line (); | |
5219 | } | |
5220 | ||
5221 | static void | |
31302357 | 5222 | s_even (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5223 | { |
5224 | register int temp; | |
5225 | register long temp_fill; | |
5226 | ||
5227 | temp = 1; /* JF should be 2? */ | |
5228 | temp_fill = get_absolute_expression (); | |
92774660 | 5229 | if (!need_pass_2) /* Never make frag if expect extra pass. */ |
252b5132 RH |
5230 | frag_align (temp, (int) temp_fill, 0); |
5231 | demand_empty_rest_of_line (); | |
5232 | record_alignment (now_seg, temp); | |
5233 | } | |
5234 | ||
5235 | static void | |
31302357 | 5236 | s_proc (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5237 | { |
5238 | demand_empty_rest_of_line (); | |
5239 | } | |
5240 | \f | |
5241 | /* Pseudo-ops handled for MRI compatibility. */ | |
5242 | ||
5243 | /* This function returns non-zero if the argument is a conditional | |
5244 | pseudo-op. This is called when checking whether a pending | |
5245 | alignment is needed. */ | |
5246 | ||
5247 | int | |
31302357 | 5248 | m68k_conditional_pseudoop (pseudo_typeS *pop) |
252b5132 RH |
5249 | { |
5250 | return (pop->poc_handler == s_mri_if | |
5251 | || pop->poc_handler == s_mri_else); | |
5252 | } | |
5253 | ||
5254 | /* Handle an MRI style chip specification. */ | |
5255 | ||
5256 | static void | |
31302357 | 5257 | mri_chip (void) |
252b5132 RH |
5258 | { |
5259 | char *s; | |
5260 | char c; | |
5261 | int i; | |
5262 | ||
5263 | s = input_line_pointer; | |
5264 | /* We can't use get_symbol_end since the processor names are not proper | |
5265 | symbols. */ | |
5266 | while (is_part_of_name (c = *input_line_pointer++)) | |
5267 | ; | |
5268 | *--input_line_pointer = 0; | |
266abb8f NS |
5269 | for (i = 0; m68k_cpus[i].name; i++) |
5270 | if (strcasecmp (s, m68k_cpus[i].name) == 0) | |
252b5132 | 5271 | break; |
266abb8f | 5272 | if (!m68k_cpus[i].name) |
252b5132 RH |
5273 | { |
5274 | as_bad (_("%s: unrecognized processor name"), s); | |
5275 | *input_line_pointer = c; | |
5276 | ignore_rest_of_line (); | |
5277 | return; | |
5278 | } | |
5279 | *input_line_pointer = c; | |
5280 | ||
5281 | if (*input_line_pointer == '/') | |
5282 | current_architecture = 0; | |
5283 | else | |
5284 | current_architecture &= m68881 | m68851; | |
266abb8f | 5285 | current_architecture |= m68k_cpus[i].arch & ~(m68881 | m68851); |
2da12c60 | 5286 | control_regs = m68k_cpus[i].control_regs; |
252b5132 RH |
5287 | |
5288 | while (*input_line_pointer == '/') | |
5289 | { | |
5290 | ++input_line_pointer; | |
5291 | s = input_line_pointer; | |
5292 | /* We can't use get_symbol_end since the processor names are not | |
5293 | proper symbols. */ | |
5294 | while (is_part_of_name (c = *input_line_pointer++)) | |
5295 | ; | |
5296 | *--input_line_pointer = 0; | |
5297 | if (strcmp (s, "68881") == 0) | |
5298 | current_architecture |= m68881; | |
5299 | else if (strcmp (s, "68851") == 0) | |
5300 | current_architecture |= m68851; | |
5301 | *input_line_pointer = c; | |
5302 | } | |
252b5132 RH |
5303 | } |
5304 | ||
5305 | /* The MRI CHIP pseudo-op. */ | |
5306 | ||
5307 | static void | |
31302357 | 5308 | s_chip (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5309 | { |
5310 | char *stop = NULL; | |
5311 | char stopc; | |
5312 | ||
5313 | if (flag_mri) | |
5314 | stop = mri_comment_field (&stopc); | |
5315 | mri_chip (); | |
5316 | if (flag_mri) | |
5317 | mri_comment_end (stop, stopc); | |
5318 | demand_empty_rest_of_line (); | |
5319 | } | |
5320 | ||
5321 | /* The MRI FOPT pseudo-op. */ | |
5322 | ||
5323 | static void | |
31302357 | 5324 | s_fopt (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5325 | { |
5326 | SKIP_WHITESPACE (); | |
5327 | ||
5328 | if (strncasecmp (input_line_pointer, "ID=", 3) == 0) | |
5329 | { | |
5330 | int temp; | |
5331 | ||
5332 | input_line_pointer += 3; | |
5333 | temp = get_absolute_expression (); | |
5334 | if (temp < 0 || temp > 7) | |
5335 | as_bad (_("bad coprocessor id")); | |
5336 | else | |
5337 | m68k_float_copnum = COP0 + temp; | |
5338 | } | |
5339 | else | |
5340 | { | |
5341 | as_bad (_("unrecognized fopt option")); | |
5342 | ignore_rest_of_line (); | |
5343 | return; | |
5344 | } | |
5345 | ||
5346 | demand_empty_rest_of_line (); | |
5347 | } | |
5348 | ||
5349 | /* The structure used to handle the MRI OPT pseudo-op. */ | |
5350 | ||
5351 | struct opt_action | |
5352 | { | |
5353 | /* The name of the option. */ | |
5354 | const char *name; | |
5355 | ||
5356 | /* If this is not NULL, just call this function. The first argument | |
5357 | is the ARG field of this structure, the second argument is | |
5358 | whether the option was negated. */ | |
31302357 | 5359 | void (*pfn) (int arg, int on); |
252b5132 RH |
5360 | |
5361 | /* If this is not NULL, and the PFN field is NULL, set the variable | |
5362 | this points to. Set it to the ARG field if the option was not | |
5363 | negated, and the NOTARG field otherwise. */ | |
5364 | int *pvar; | |
5365 | ||
5366 | /* The value to pass to PFN or to assign to *PVAR. */ | |
5367 | int arg; | |
5368 | ||
5369 | /* The value to assign to *PVAR if the option is negated. If PFN is | |
5370 | NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then | |
5371 | the option may not be negated. */ | |
5372 | int notarg; | |
5373 | }; | |
5374 | ||
5375 | /* The table used to handle the MRI OPT pseudo-op. */ | |
5376 | ||
31302357 AS |
5377 | static void skip_to_comma (int, int); |
5378 | static void opt_nest (int, int); | |
5379 | static void opt_chip (int, int); | |
5380 | static void opt_list (int, int); | |
5381 | static void opt_list_symbols (int, int); | |
252b5132 RH |
5382 | |
5383 | static const struct opt_action opt_table[] = | |
5384 | { | |
5385 | { "abspcadd", 0, &m68k_abspcadd, 1, 0 }, | |
5386 | ||
5387 | /* We do relaxing, so there is little use for these options. */ | |
5388 | { "b", 0, 0, 0, 0 }, | |
5389 | { "brs", 0, 0, 0, 0 }, | |
5390 | { "brb", 0, 0, 0, 0 }, | |
5391 | { "brl", 0, 0, 0, 0 }, | |
5392 | { "brw", 0, 0, 0, 0 }, | |
5393 | ||
5394 | { "c", 0, 0, 0, 0 }, | |
5395 | { "cex", 0, 0, 0, 0 }, | |
5396 | { "case", 0, &symbols_case_sensitive, 1, 0 }, | |
5397 | { "cl", 0, 0, 0, 0 }, | |
5398 | { "cre", 0, 0, 0, 0 }, | |
5399 | { "d", 0, &flag_keep_locals, 1, 0 }, | |
5400 | { "e", 0, 0, 0, 0 }, | |
5401 | { "f", 0, &flag_short_refs, 1, 0 }, | |
5402 | { "frs", 0, &flag_short_refs, 1, 0 }, | |
5403 | { "frl", 0, &flag_short_refs, 0, 1 }, | |
5404 | { "g", 0, 0, 0, 0 }, | |
5405 | { "i", 0, 0, 0, 0 }, | |
5406 | { "m", 0, 0, 0, 0 }, | |
5407 | { "mex", 0, 0, 0, 0 }, | |
5408 | { "mc", 0, 0, 0, 0 }, | |
5409 | { "md", 0, 0, 0, 0 }, | |
5410 | { "nest", opt_nest, 0, 0, 0 }, | |
5411 | { "next", skip_to_comma, 0, 0, 0 }, | |
5412 | { "o", 0, 0, 0, 0 }, | |
5413 | { "old", 0, 0, 0, 0 }, | |
5414 | { "op", skip_to_comma, 0, 0, 0 }, | |
5415 | { "pco", 0, 0, 0, 0 }, | |
5416 | { "p", opt_chip, 0, 0, 0 }, | |
5417 | { "pcr", 0, 0, 0, 0 }, | |
5418 | { "pcs", 0, 0, 0, 0 }, | |
5419 | { "r", 0, 0, 0, 0 }, | |
5420 | { "quick", 0, &m68k_quick, 1, 0 }, | |
5421 | { "rel32", 0, &m68k_rel32, 1, 0 }, | |
5422 | { "s", opt_list, 0, 0, 0 }, | |
5423 | { "t", opt_list_symbols, 0, 0, 0 }, | |
5424 | { "w", 0, &flag_no_warnings, 0, 1 }, | |
5425 | { "x", 0, 0, 0, 0 } | |
5426 | }; | |
5427 | ||
8fce3f5e | 5428 | #define OPTCOUNT ((int) (sizeof opt_table / sizeof opt_table[0])) |
252b5132 RH |
5429 | |
5430 | /* The MRI OPT pseudo-op. */ | |
5431 | ||
5432 | static void | |
31302357 | 5433 | s_opt (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5434 | { |
5435 | do | |
5436 | { | |
5437 | int t; | |
5438 | char *s; | |
5439 | char c; | |
5440 | int i; | |
5441 | const struct opt_action *o; | |
5442 | ||
5443 | SKIP_WHITESPACE (); | |
5444 | ||
5445 | t = 1; | |
5446 | if (*input_line_pointer == '-') | |
5447 | { | |
5448 | ++input_line_pointer; | |
5449 | t = 0; | |
5450 | } | |
5451 | else if (strncasecmp (input_line_pointer, "NO", 2) == 0) | |
5452 | { | |
5453 | input_line_pointer += 2; | |
5454 | t = 0; | |
5455 | } | |
5456 | ||
5457 | s = input_line_pointer; | |
5458 | c = get_symbol_end (); | |
5459 | ||
5460 | for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++) | |
5461 | { | |
5462 | if (strcasecmp (s, o->name) == 0) | |
5463 | { | |
5464 | if (o->pfn) | |
5465 | { | |
5466 | /* Restore input_line_pointer now in case the option | |
5467 | takes arguments. */ | |
5468 | *input_line_pointer = c; | |
5469 | (*o->pfn) (o->arg, t); | |
5470 | } | |
5471 | else if (o->pvar != NULL) | |
5472 | { | |
5473 | if (! t && o->arg == o->notarg) | |
5474 | as_bad (_("option `%s' may not be negated"), s); | |
5475 | *input_line_pointer = c; | |
5476 | *o->pvar = t ? o->arg : o->notarg; | |
5477 | } | |
5478 | else | |
5479 | *input_line_pointer = c; | |
5480 | break; | |
5481 | } | |
5482 | } | |
5483 | if (i >= OPTCOUNT) | |
5484 | { | |
5485 | as_bad (_("option `%s' not recognized"), s); | |
5486 | *input_line_pointer = c; | |
5487 | } | |
5488 | } | |
5489 | while (*input_line_pointer++ == ','); | |
5490 | ||
5491 | /* Move back to terminating character. */ | |
5492 | --input_line_pointer; | |
5493 | demand_empty_rest_of_line (); | |
5494 | } | |
5495 | ||
5496 | /* Skip ahead to a comma. This is used for OPT options which we do | |
67c1ffbe | 5497 | not support and which take arguments. */ |
252b5132 RH |
5498 | |
5499 | static void | |
31302357 | 5500 | skip_to_comma (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5501 | { |
5502 | while (*input_line_pointer != ',' | |
5503 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5504 | ++input_line_pointer; | |
5505 | } | |
5506 | ||
5507 | /* Handle the OPT NEST=depth option. */ | |
5508 | ||
5509 | static void | |
31302357 | 5510 | opt_nest (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5511 | { |
5512 | if (*input_line_pointer != '=') | |
5513 | { | |
5514 | as_bad (_("bad format of OPT NEST=depth")); | |
5515 | return; | |
5516 | } | |
5517 | ||
5518 | ++input_line_pointer; | |
5519 | max_macro_nest = get_absolute_expression (); | |
5520 | } | |
5521 | ||
5522 | /* Handle the OPT P=chip option. */ | |
5523 | ||
5524 | static void | |
31302357 | 5525 | opt_chip (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5526 | { |
5527 | if (*input_line_pointer != '=') | |
5528 | { | |
5529 | /* This is just OPT P, which we do not support. */ | |
5530 | return; | |
5531 | } | |
5532 | ||
5533 | ++input_line_pointer; | |
5534 | mri_chip (); | |
5535 | } | |
5536 | ||
5537 | /* Handle the OPT S option. */ | |
5538 | ||
5539 | static void | |
31302357 | 5540 | opt_list (int arg ATTRIBUTE_UNUSED, int on) |
252b5132 RH |
5541 | { |
5542 | listing_list (on); | |
5543 | } | |
5544 | ||
5545 | /* Handle the OPT T option. */ | |
5546 | ||
5547 | static void | |
31302357 | 5548 | opt_list_symbols (int arg ATTRIBUTE_UNUSED, int on) |
252b5132 RH |
5549 | { |
5550 | if (on) | |
5551 | listing |= LISTING_SYMBOLS; | |
5552 | else | |
8a104df9 | 5553 | listing &= ~LISTING_SYMBOLS; |
252b5132 RH |
5554 | } |
5555 | ||
5556 | /* Handle the MRI REG pseudo-op. */ | |
5557 | ||
5558 | static void | |
31302357 | 5559 | s_reg (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5560 | { |
5561 | char *s; | |
5562 | int c; | |
5563 | struct m68k_op rop; | |
5564 | int mask; | |
5565 | char *stop = NULL; | |
5566 | char stopc; | |
5567 | ||
5568 | if (line_label == NULL) | |
5569 | { | |
5570 | as_bad (_("missing label")); | |
5571 | ignore_rest_of_line (); | |
5572 | return; | |
5573 | } | |
5574 | ||
5575 | if (flag_mri) | |
5576 | stop = mri_comment_field (&stopc); | |
5577 | ||
5578 | SKIP_WHITESPACE (); | |
5579 | ||
5580 | s = input_line_pointer; | |
3882b010 | 5581 | while (ISALNUM (*input_line_pointer) |
252b5132 RH |
5582 | #ifdef REGISTER_PREFIX |
5583 | || *input_line_pointer == REGISTER_PREFIX | |
5584 | #endif | |
5585 | || *input_line_pointer == '/' | |
5586 | || *input_line_pointer == '-') | |
5587 | ++input_line_pointer; | |
5588 | c = *input_line_pointer; | |
5589 | *input_line_pointer = '\0'; | |
5590 | ||
5591 | if (m68k_ip_op (s, &rop) != 0) | |
5592 | { | |
5593 | if (rop.error == NULL) | |
5594 | as_bad (_("bad register list")); | |
5595 | else | |
5596 | as_bad (_("bad register list: %s"), rop.error); | |
5597 | *input_line_pointer = c; | |
5598 | ignore_rest_of_line (); | |
5599 | return; | |
5600 | } | |
5601 | ||
5602 | *input_line_pointer = c; | |
5603 | ||
5604 | if (rop.mode == REGLST) | |
5605 | mask = rop.mask; | |
5606 | else if (rop.mode == DREG) | |
5607 | mask = 1 << (rop.reg - DATA0); | |
5608 | else if (rop.mode == AREG) | |
5609 | mask = 1 << (rop.reg - ADDR0 + 8); | |
5610 | else if (rop.mode == FPREG) | |
5611 | mask = 1 << (rop.reg - FP0 + 16); | |
5612 | else if (rop.mode == CONTROL | |
5613 | && rop.reg == FPI) | |
5614 | mask = 1 << 24; | |
5615 | else if (rop.mode == CONTROL | |
5616 | && rop.reg == FPS) | |
5617 | mask = 1 << 25; | |
5618 | else if (rop.mode == CONTROL | |
5619 | && rop.reg == FPC) | |
5620 | mask = 1 << 26; | |
5621 | else | |
5622 | { | |
5623 | as_bad (_("bad register list")); | |
5624 | ignore_rest_of_line (); | |
5625 | return; | |
5626 | } | |
5627 | ||
5628 | S_SET_SEGMENT (line_label, reg_section); | |
5629 | S_SET_VALUE (line_label, ~mask); | |
49309057 | 5630 | symbol_set_frag (line_label, &zero_address_frag); |
252b5132 RH |
5631 | |
5632 | if (flag_mri) | |
5633 | mri_comment_end (stop, stopc); | |
5634 | ||
5635 | demand_empty_rest_of_line (); | |
5636 | } | |
5637 | ||
5638 | /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */ | |
5639 | ||
5640 | struct save_opts | |
5641 | { | |
5642 | struct save_opts *next; | |
5643 | int abspcadd; | |
5644 | int symbols_case_sensitive; | |
5645 | int keep_locals; | |
5646 | int short_refs; | |
5647 | int architecture; | |
2da12c60 | 5648 | const enum m68k_register *control_regs; |
252b5132 RH |
5649 | int quick; |
5650 | int rel32; | |
5651 | int listing; | |
5652 | int no_warnings; | |
5653 | /* FIXME: We don't save OPT S. */ | |
5654 | }; | |
5655 | ||
5656 | /* This variable holds the stack of saved options. */ | |
5657 | ||
5658 | static struct save_opts *save_stack; | |
5659 | ||
5660 | /* The MRI SAVE pseudo-op. */ | |
5661 | ||
5662 | static void | |
31302357 | 5663 | s_save (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5664 | { |
5665 | struct save_opts *s; | |
5666 | ||
5667 | s = (struct save_opts *) xmalloc (sizeof (struct save_opts)); | |
5668 | s->abspcadd = m68k_abspcadd; | |
5669 | s->symbols_case_sensitive = symbols_case_sensitive; | |
5670 | s->keep_locals = flag_keep_locals; | |
5671 | s->short_refs = flag_short_refs; | |
5672 | s->architecture = current_architecture; | |
2da12c60 | 5673 | s->control_regs = control_regs; |
252b5132 RH |
5674 | s->quick = m68k_quick; |
5675 | s->rel32 = m68k_rel32; | |
5676 | s->listing = listing; | |
5677 | s->no_warnings = flag_no_warnings; | |
5678 | ||
5679 | s->next = save_stack; | |
5680 | save_stack = s; | |
5681 | ||
5682 | demand_empty_rest_of_line (); | |
5683 | } | |
5684 | ||
5685 | /* The MRI RESTORE pseudo-op. */ | |
5686 | ||
5687 | static void | |
31302357 | 5688 | s_restore (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5689 | { |
5690 | struct save_opts *s; | |
5691 | ||
5692 | if (save_stack == NULL) | |
5693 | { | |
5694 | as_bad (_("restore without save")); | |
5695 | ignore_rest_of_line (); | |
5696 | return; | |
5697 | } | |
5698 | ||
5699 | s = save_stack; | |
5700 | save_stack = s->next; | |
5701 | ||
5702 | m68k_abspcadd = s->abspcadd; | |
5703 | symbols_case_sensitive = s->symbols_case_sensitive; | |
5704 | flag_keep_locals = s->keep_locals; | |
5705 | flag_short_refs = s->short_refs; | |
5706 | current_architecture = s->architecture; | |
2da12c60 | 5707 | control_regs = s->control_regs; |
252b5132 RH |
5708 | m68k_quick = s->quick; |
5709 | m68k_rel32 = s->rel32; | |
5710 | listing = s->listing; | |
5711 | flag_no_warnings = s->no_warnings; | |
5712 | ||
5713 | free (s); | |
5714 | ||
5715 | demand_empty_rest_of_line (); | |
5716 | } | |
5717 | ||
5718 | /* Types of MRI structured control directives. */ | |
5719 | ||
5720 | enum mri_control_type | |
5721 | { | |
5722 | mri_for, | |
5723 | mri_if, | |
5724 | mri_repeat, | |
5725 | mri_while | |
5726 | }; | |
5727 | ||
5728 | /* This structure is used to stack the MRI structured control | |
5729 | directives. */ | |
5730 | ||
5731 | struct mri_control_info | |
5732 | { | |
5733 | /* The directive within which this one is enclosed. */ | |
5734 | struct mri_control_info *outer; | |
5735 | ||
5736 | /* The type of directive. */ | |
5737 | enum mri_control_type type; | |
5738 | ||
5739 | /* Whether an ELSE has been in an IF. */ | |
5740 | int else_seen; | |
5741 | ||
5742 | /* The add or sub statement at the end of a FOR. */ | |
5743 | char *incr; | |
5744 | ||
5745 | /* The label of the top of a FOR or REPEAT loop. */ | |
5746 | char *top; | |
5747 | ||
5748 | /* The label to jump to for the next iteration, or the else | |
5749 | expression of a conditional. */ | |
5750 | char *next; | |
5751 | ||
5752 | /* The label to jump to to break out of the loop, or the label past | |
5753 | the end of a conditional. */ | |
5754 | char *bottom; | |
5755 | }; | |
5756 | ||
5757 | /* The stack of MRI structured control directives. */ | |
5758 | ||
5759 | static struct mri_control_info *mri_control_stack; | |
5760 | ||
5761 | /* The current MRI structured control directive index number, used to | |
5762 | generate label names. */ | |
5763 | ||
5764 | static int mri_control_index; | |
5765 | ||
252b5132 RH |
5766 | /* Assemble an instruction for an MRI structured control directive. */ |
5767 | ||
5768 | static void | |
31302357 | 5769 | mri_assemble (char *str) |
252b5132 RH |
5770 | { |
5771 | char *s; | |
5772 | ||
5773 | /* md_assemble expects the opcode to be in lower case. */ | |
5774 | for (s = str; *s != ' ' && *s != '\0'; s++) | |
3882b010 | 5775 | *s = TOLOWER (*s); |
252b5132 RH |
5776 | |
5777 | md_assemble (str); | |
5778 | } | |
5779 | ||
5780 | /* Generate a new MRI label structured control directive label name. */ | |
5781 | ||
5782 | static char * | |
31302357 | 5783 | mri_control_label (void) |
252b5132 RH |
5784 | { |
5785 | char *n; | |
5786 | ||
5787 | n = (char *) xmalloc (20); | |
5788 | sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index); | |
5789 | ++mri_control_index; | |
5790 | return n; | |
5791 | } | |
5792 | ||
5793 | /* Create a new MRI structured control directive. */ | |
5794 | ||
5795 | static struct mri_control_info * | |
31302357 | 5796 | push_mri_control (enum mri_control_type type) |
252b5132 RH |
5797 | { |
5798 | struct mri_control_info *n; | |
5799 | ||
5800 | n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info)); | |
5801 | ||
5802 | n->type = type; | |
5803 | n->else_seen = 0; | |
5804 | if (type == mri_if || type == mri_while) | |
5805 | n->top = NULL; | |
5806 | else | |
5807 | n->top = mri_control_label (); | |
5808 | n->next = mri_control_label (); | |
5809 | n->bottom = mri_control_label (); | |
5810 | ||
5811 | n->outer = mri_control_stack; | |
5812 | mri_control_stack = n; | |
5813 | ||
5814 | return n; | |
5815 | } | |
5816 | ||
5817 | /* Pop off the stack of MRI structured control directives. */ | |
5818 | ||
5819 | static void | |
31302357 | 5820 | pop_mri_control (void) |
252b5132 RH |
5821 | { |
5822 | struct mri_control_info *n; | |
5823 | ||
5824 | n = mri_control_stack; | |
5825 | mri_control_stack = n->outer; | |
5826 | if (n->top != NULL) | |
5827 | free (n->top); | |
5828 | free (n->next); | |
5829 | free (n->bottom); | |
5830 | free (n); | |
5831 | } | |
5832 | ||
5833 | /* Recognize a condition code in an MRI structured control expression. */ | |
5834 | ||
5835 | static int | |
31302357 | 5836 | parse_mri_condition (int *pcc) |
252b5132 RH |
5837 | { |
5838 | char c1, c2; | |
5839 | ||
5840 | know (*input_line_pointer == '<'); | |
5841 | ||
5842 | ++input_line_pointer; | |
5843 | c1 = *input_line_pointer++; | |
5844 | c2 = *input_line_pointer++; | |
5845 | ||
5846 | if (*input_line_pointer != '>') | |
5847 | { | |
5848 | as_bad (_("syntax error in structured control directive")); | |
5849 | return 0; | |
5850 | } | |
5851 | ||
5852 | ++input_line_pointer; | |
5853 | SKIP_WHITESPACE (); | |
5854 | ||
3882b010 L |
5855 | c1 = TOLOWER (c1); |
5856 | c2 = TOLOWER (c2); | |
252b5132 RH |
5857 | |
5858 | *pcc = (c1 << 8) | c2; | |
5859 | ||
5860 | return 1; | |
5861 | } | |
5862 | ||
5863 | /* Parse a single operand in an MRI structured control expression. */ | |
5864 | ||
5865 | static int | |
31302357 AS |
5866 | parse_mri_control_operand (int *pcc, char **leftstart, char **leftstop, |
5867 | char **rightstart, char **rightstop) | |
252b5132 RH |
5868 | { |
5869 | char *s; | |
5870 | ||
5871 | SKIP_WHITESPACE (); | |
5872 | ||
5873 | *pcc = -1; | |
5874 | *leftstart = NULL; | |
5875 | *leftstop = NULL; | |
5876 | *rightstart = NULL; | |
5877 | *rightstop = NULL; | |
5878 | ||
5879 | if (*input_line_pointer == '<') | |
5880 | { | |
5881 | /* It's just a condition code. */ | |
5882 | return parse_mri_condition (pcc); | |
5883 | } | |
5884 | ||
5885 | /* Look ahead for the condition code. */ | |
5886 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5887 | { | |
5888 | if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>') | |
5889 | break; | |
5890 | } | |
5891 | if (*s == '\0') | |
5892 | { | |
5893 | as_bad (_("missing condition code in structured control directive")); | |
5894 | return 0; | |
5895 | } | |
5896 | ||
5897 | *leftstart = input_line_pointer; | |
5898 | *leftstop = s; | |
5899 | if (*leftstop > *leftstart | |
5900 | && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t')) | |
5901 | --*leftstop; | |
5902 | ||
5903 | input_line_pointer = s; | |
5904 | if (! parse_mri_condition (pcc)) | |
5905 | return 0; | |
5906 | ||
5907 | /* Look ahead for AND or OR or end of line. */ | |
5908 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5909 | { | |
e1f44d10 NC |
5910 | /* We must make sure we don't misinterpret AND/OR at the end of labels! |
5911 | if d0 <eq> #FOOAND and d1 <ne> #BAROR then | |
5912 | ^^^ ^^ */ | |
8a104df9 KH |
5913 | if ((s == input_line_pointer |
5914 | || *(s-1) == ' ' | |
5915 | || *(s-1) == '\t') | |
5916 | && ((strncasecmp (s, "AND", 3) == 0 | |
5917 | && (s[3] == '.' || ! is_part_of_name (s[3]))) | |
5918 | || (strncasecmp (s, "OR", 2) == 0 | |
5919 | && (s[2] == '.' || ! is_part_of_name (s[2]))))) | |
5920 | break; | |
252b5132 RH |
5921 | } |
5922 | ||
5923 | *rightstart = input_line_pointer; | |
5924 | *rightstop = s; | |
5925 | if (*rightstop > *rightstart | |
5926 | && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t')) | |
5927 | --*rightstop; | |
5928 | ||
5929 | input_line_pointer = s; | |
5930 | ||
5931 | return 1; | |
5932 | } | |
5933 | ||
5934 | #define MCC(b1, b2) (((b1) << 8) | (b2)) | |
5935 | ||
5936 | /* Swap the sense of a condition. This changes the condition so that | |
5937 | it generates the same result when the operands are swapped. */ | |
5938 | ||
5939 | static int | |
31302357 | 5940 | swap_mri_condition (int cc) |
252b5132 RH |
5941 | { |
5942 | switch (cc) | |
5943 | { | |
5944 | case MCC ('h', 'i'): return MCC ('c', 's'); | |
5945 | case MCC ('l', 's'): return MCC ('c', 'c'); | |
36759679 | 5946 | /* <HS> is an alias for <CC>. */ |
e1f44d10 | 5947 | case MCC ('h', 's'): |
252b5132 | 5948 | case MCC ('c', 'c'): return MCC ('l', 's'); |
36759679 | 5949 | /* <LO> is an alias for <CS>. */ |
e1f44d10 | 5950 | case MCC ('l', 'o'): |
252b5132 RH |
5951 | case MCC ('c', 's'): return MCC ('h', 'i'); |
5952 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5953 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5954 | case MCC ('g', 'e'): return MCC ('l', 'e'); | |
5955 | case MCC ('l', 't'): return MCC ('g', 't'); | |
5956 | case MCC ('g', 't'): return MCC ('l', 't'); | |
5957 | case MCC ('l', 'e'): return MCC ('g', 'e'); | |
36759679 | 5958 | /* Issue a warning for conditions we can not swap. */ |
e1f44d10 NC |
5959 | case MCC ('n', 'e'): return MCC ('n', 'e'); // no problem here |
5960 | case MCC ('e', 'q'): return MCC ('e', 'q'); // also no problem | |
5961 | case MCC ('v', 'c'): | |
5962 | case MCC ('v', 's'): | |
5963 | default : | |
5964 | as_warn (_("Condition <%c%c> in structured control directive can not be encoded correctly"), | |
5965 | (char) (cc >> 8), (char) (cc)); | |
5966 | break; | |
252b5132 RH |
5967 | } |
5968 | return cc; | |
5969 | } | |
5970 | ||
5971 | /* Reverse the sense of a condition. */ | |
5972 | ||
5973 | static int | |
31302357 | 5974 | reverse_mri_condition (int cc) |
252b5132 RH |
5975 | { |
5976 | switch (cc) | |
5977 | { | |
5978 | case MCC ('h', 'i'): return MCC ('l', 's'); | |
5979 | case MCC ('l', 's'): return MCC ('h', 'i'); | |
e1f44d10 NC |
5980 | /* <HS> is an alias for <CC> */ |
5981 | case MCC ('h', 's'): return MCC ('l', 'o'); | |
252b5132 | 5982 | case MCC ('c', 'c'): return MCC ('c', 's'); |
e1f44d10 NC |
5983 | /* <LO> is an alias for <CS> */ |
5984 | case MCC ('l', 'o'): return MCC ('h', 's'); | |
252b5132 RH |
5985 | case MCC ('c', 's'): return MCC ('c', 'c'); |
5986 | case MCC ('n', 'e'): return MCC ('e', 'q'); | |
5987 | case MCC ('e', 'q'): return MCC ('n', 'e'); | |
5988 | case MCC ('v', 'c'): return MCC ('v', 's'); | |
5989 | case MCC ('v', 's'): return MCC ('v', 'c'); | |
5990 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5991 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5992 | case MCC ('g', 'e'): return MCC ('l', 't'); | |
5993 | case MCC ('l', 't'): return MCC ('g', 'e'); | |
5994 | case MCC ('g', 't'): return MCC ('l', 'e'); | |
5995 | case MCC ('l', 'e'): return MCC ('g', 't'); | |
5996 | } | |
5997 | return cc; | |
5998 | } | |
5999 | ||
6000 | /* Build an MRI structured control expression. This generates test | |
6001 | and branch instructions. It goes to TRUELAB if the condition is | |
6002 | true, and to FALSELAB if the condition is false. Exactly one of | |
6003 | TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL | |
6004 | is the size qualifier for the expression. EXTENT is the size to | |
6005 | use for the branch. */ | |
6006 | ||
6007 | static void | |
31302357 AS |
6008 | build_mri_control_operand (int qual, int cc, char *leftstart, char *leftstop, |
6009 | char *rightstart, char *rightstop, | |
6010 | const char *truelab, const char *falselab, | |
6011 | int extent) | |
252b5132 RH |
6012 | { |
6013 | char *buf; | |
6014 | char *s; | |
6015 | ||
6016 | if (leftstart != NULL) | |
6017 | { | |
6018 | struct m68k_op leftop, rightop; | |
6019 | char c; | |
6020 | ||
6021 | /* Swap the compare operands, if necessary, to produce a legal | |
6022 | m68k compare instruction. Comparing a register operand with | |
6023 | a non-register operand requires the register to be on the | |
6024 | right (cmp, cmpa). Comparing an immediate value with | |
6025 | anything requires the immediate value to be on the left | |
6026 | (cmpi). */ | |
6027 | ||
6028 | c = *leftstop; | |
6029 | *leftstop = '\0'; | |
6030 | (void) m68k_ip_op (leftstart, &leftop); | |
6031 | *leftstop = c; | |
6032 | ||
6033 | c = *rightstop; | |
6034 | *rightstop = '\0'; | |
6035 | (void) m68k_ip_op (rightstart, &rightop); | |
6036 | *rightstop = c; | |
6037 | ||
6038 | if (rightop.mode == IMMED | |
6039 | || ((leftop.mode == DREG || leftop.mode == AREG) | |
6040 | && (rightop.mode != DREG && rightop.mode != AREG))) | |
6041 | { | |
6042 | char *temp; | |
6043 | ||
31302357 AS |
6044 | /* Correct conditional handling: |
6045 | if #1 <lt> d0 then ;means if (1 < d0) | |
6046 | ... | |
6047 | endi | |
e1f44d10 | 6048 | |
31302357 | 6049 | should assemble to: |
e1f44d10 | 6050 | |
31302357 AS |
6051 | cmp #1,d0 if we do *not* swap the operands |
6052 | bgt true we need the swapped condition! | |
6053 | ble false | |
6054 | true: | |
6055 | ... | |
6056 | false: | |
6057 | */ | |
252b5132 RH |
6058 | temp = leftstart; |
6059 | leftstart = rightstart; | |
6060 | rightstart = temp; | |
6061 | temp = leftstop; | |
6062 | leftstop = rightstop; | |
6063 | rightstop = temp; | |
8a104df9 KH |
6064 | } |
6065 | else | |
6066 | { | |
e1f44d10 | 6067 | cc = swap_mri_condition (cc); |
252b5132 RH |
6068 | } |
6069 | } | |
6070 | ||
6071 | if (truelab == NULL) | |
6072 | { | |
6073 | cc = reverse_mri_condition (cc); | |
6074 | truelab = falselab; | |
6075 | } | |
92774660 | 6076 | |
252b5132 RH |
6077 | if (leftstart != NULL) |
6078 | { | |
6079 | buf = (char *) xmalloc (20 | |
6080 | + (leftstop - leftstart) | |
6081 | + (rightstop - rightstart)); | |
6082 | s = buf; | |
6083 | *s++ = 'c'; | |
6084 | *s++ = 'm'; | |
6085 | *s++ = 'p'; | |
6086 | if (qual != '\0') | |
3882b010 | 6087 | *s++ = TOLOWER (qual); |
252b5132 RH |
6088 | *s++ = ' '; |
6089 | memcpy (s, leftstart, leftstop - leftstart); | |
6090 | s += leftstop - leftstart; | |
6091 | *s++ = ','; | |
6092 | memcpy (s, rightstart, rightstop - rightstart); | |
6093 | s += rightstop - rightstart; | |
6094 | *s = '\0'; | |
6095 | mri_assemble (buf); | |
6096 | free (buf); | |
6097 | } | |
92774660 | 6098 | |
252b5132 RH |
6099 | buf = (char *) xmalloc (20 + strlen (truelab)); |
6100 | s = buf; | |
6101 | *s++ = 'b'; | |
6102 | *s++ = cc >> 8; | |
6103 | *s++ = cc & 0xff; | |
6104 | if (extent != '\0') | |
3882b010 | 6105 | *s++ = TOLOWER (extent); |
252b5132 RH |
6106 | *s++ = ' '; |
6107 | strcpy (s, truelab); | |
6108 | mri_assemble (buf); | |
6109 | free (buf); | |
6110 | } | |
6111 | ||
6112 | /* Parse an MRI structured control expression. This generates test | |
6113 | and branch instructions. STOP is where the expression ends. It | |
6114 | goes to TRUELAB if the condition is true, and to FALSELAB if the | |
6115 | condition is false. Exactly one of TRUELAB and FALSELAB will be | |
6116 | NULL, meaning to fall through. QUAL is the size qualifier for the | |
6117 | expression. EXTENT is the size to use for the branch. */ | |
6118 | ||
6119 | static void | |
31302357 AS |
6120 | parse_mri_control_expression (char *stop, int qual, const char *truelab, |
6121 | const char *falselab, int extent) | |
252b5132 RH |
6122 | { |
6123 | int c; | |
6124 | int cc; | |
6125 | char *leftstart; | |
6126 | char *leftstop; | |
6127 | char *rightstart; | |
6128 | char *rightstop; | |
6129 | ||
6130 | c = *stop; | |
6131 | *stop = '\0'; | |
6132 | ||
6133 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6134 | &rightstart, &rightstop)) | |
6135 | { | |
6136 | *stop = c; | |
6137 | return; | |
6138 | } | |
6139 | ||
6140 | if (strncasecmp (input_line_pointer, "AND", 3) == 0) | |
6141 | { | |
6142 | const char *flab; | |
6143 | ||
6144 | if (falselab != NULL) | |
6145 | flab = falselab; | |
6146 | else | |
6147 | flab = mri_control_label (); | |
6148 | ||
6149 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6150 | rightstop, (const char *) NULL, flab, extent); | |
6151 | ||
6152 | input_line_pointer += 3; | |
6153 | if (*input_line_pointer != '.' | |
6154 | || input_line_pointer[1] == '\0') | |
6155 | qual = '\0'; | |
6156 | else | |
6157 | { | |
6158 | qual = input_line_pointer[1]; | |
6159 | input_line_pointer += 2; | |
6160 | } | |
6161 | ||
6162 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6163 | &rightstart, &rightstop)) | |
6164 | { | |
6165 | *stop = c; | |
6166 | return; | |
6167 | } | |
6168 | ||
6169 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6170 | rightstop, truelab, falselab, extent); | |
6171 | ||
6172 | if (falselab == NULL) | |
6173 | colon (flab); | |
6174 | } | |
6175 | else if (strncasecmp (input_line_pointer, "OR", 2) == 0) | |
6176 | { | |
6177 | const char *tlab; | |
6178 | ||
6179 | if (truelab != NULL) | |
6180 | tlab = truelab; | |
6181 | else | |
6182 | tlab = mri_control_label (); | |
6183 | ||
6184 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6185 | rightstop, tlab, (const char *) NULL, extent); | |
6186 | ||
6187 | input_line_pointer += 2; | |
6188 | if (*input_line_pointer != '.' | |
6189 | || input_line_pointer[1] == '\0') | |
6190 | qual = '\0'; | |
6191 | else | |
6192 | { | |
6193 | qual = input_line_pointer[1]; | |
6194 | input_line_pointer += 2; | |
6195 | } | |
6196 | ||
6197 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6198 | &rightstart, &rightstop)) | |
6199 | { | |
6200 | *stop = c; | |
6201 | return; | |
6202 | } | |
6203 | ||
6204 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6205 | rightstop, truelab, falselab, extent); | |
6206 | ||
6207 | if (truelab == NULL) | |
6208 | colon (tlab); | |
6209 | } | |
6210 | else | |
6211 | { | |
6212 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6213 | rightstop, truelab, falselab, extent); | |
6214 | } | |
6215 | ||
6216 | *stop = c; | |
6217 | if (input_line_pointer != stop) | |
6218 | as_bad (_("syntax error in structured control directive")); | |
6219 | } | |
6220 | ||
6221 | /* Handle the MRI IF pseudo-op. This may be a structured control | |
6222 | directive, or it may be a regular assembler conditional, depending | |
6223 | on its operands. */ | |
6224 | ||
6225 | static void | |
31302357 | 6226 | s_mri_if (int qual) |
252b5132 RH |
6227 | { |
6228 | char *s; | |
6229 | int c; | |
6230 | struct mri_control_info *n; | |
6231 | ||
6232 | /* A structured control directive must end with THEN with an | |
6233 | optional qualifier. */ | |
6234 | s = input_line_pointer; | |
e1f44d10 NC |
6235 | /* We only accept '*' as introduction of comments if preceded by white space |
6236 | or at first column of a line (I think this can't actually happen here?) | |
6237 | This is important when assembling: | |
6238 | if d0 <ne> 12(a0,d0*2) then | |
36759679 | 6239 | if d0 <ne> #CONST*20 then. */ |
31302357 AS |
6240 | while (! (is_end_of_line[(unsigned char) *s] |
6241 | || (flag_mri | |
6242 | && *s == '*' | |
6243 | && (s == input_line_pointer | |
6244 | || *(s-1) == ' ' | |
6245 | || *(s-1) == '\t')))) | |
252b5132 RH |
6246 | ++s; |
6247 | --s; | |
6248 | while (s > input_line_pointer && (*s == ' ' || *s == '\t')) | |
6249 | --s; | |
6250 | ||
6251 | if (s - input_line_pointer > 1 | |
6252 | && s[-1] == '.') | |
6253 | s -= 2; | |
6254 | ||
6255 | if (s - input_line_pointer < 3 | |
6256 | || strncasecmp (s - 3, "THEN", 4) != 0) | |
6257 | { | |
6258 | if (qual != '\0') | |
6259 | { | |
6260 | as_bad (_("missing then")); | |
6261 | ignore_rest_of_line (); | |
6262 | return; | |
6263 | } | |
6264 | ||
6265 | /* It's a conditional. */ | |
6266 | s_if (O_ne); | |
6267 | return; | |
6268 | } | |
6269 | ||
6270 | /* Since this might be a conditional if, this pseudo-op will be | |
6271 | called even if we are supported to be ignoring input. Double | |
6272 | check now. Clobber *input_line_pointer so that ignore_input | |
6273 | thinks that this is not a special pseudo-op. */ | |
6274 | c = *input_line_pointer; | |
6275 | *input_line_pointer = 0; | |
6276 | if (ignore_input ()) | |
6277 | { | |
6278 | *input_line_pointer = c; | |
6279 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6280 | ++input_line_pointer; | |
6281 | demand_empty_rest_of_line (); | |
6282 | return; | |
6283 | } | |
6284 | *input_line_pointer = c; | |
6285 | ||
6286 | n = push_mri_control (mri_if); | |
6287 | ||
6288 | parse_mri_control_expression (s - 3, qual, (const char *) NULL, | |
6289 | n->next, s[1] == '.' ? s[2] : '\0'); | |
6290 | ||
6291 | if (s[1] == '.') | |
6292 | input_line_pointer = s + 3; | |
6293 | else | |
6294 | input_line_pointer = s + 1; | |
6295 | ||
6296 | if (flag_mri) | |
6297 | { | |
6298 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6299 | ++input_line_pointer; | |
6300 | } | |
6301 | ||
6302 | demand_empty_rest_of_line (); | |
6303 | } | |
6304 | ||
6305 | /* Handle the MRI else pseudo-op. If we are currently doing an MRI | |
6306 | structured IF, associate the ELSE with the IF. Otherwise, assume | |
6307 | it is a conditional else. */ | |
6308 | ||
6309 | static void | |
31302357 | 6310 | s_mri_else (int qual) |
252b5132 RH |
6311 | { |
6312 | int c; | |
6313 | char *buf; | |
6314 | char q[2]; | |
6315 | ||
6316 | if (qual == '\0' | |
6317 | && (mri_control_stack == NULL | |
6318 | || mri_control_stack->type != mri_if | |
6319 | || mri_control_stack->else_seen)) | |
6320 | { | |
6321 | s_else (0); | |
6322 | return; | |
6323 | } | |
6324 | ||
6325 | c = *input_line_pointer; | |
6326 | *input_line_pointer = 0; | |
6327 | if (ignore_input ()) | |
6328 | { | |
6329 | *input_line_pointer = c; | |
6330 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6331 | ++input_line_pointer; | |
6332 | demand_empty_rest_of_line (); | |
6333 | return; | |
6334 | } | |
6335 | *input_line_pointer = c; | |
6336 | ||
6337 | if (mri_control_stack == NULL | |
6338 | || mri_control_stack->type != mri_if | |
6339 | || mri_control_stack->else_seen) | |
6340 | { | |
6341 | as_bad (_("else without matching if")); | |
6342 | ignore_rest_of_line (); | |
6343 | return; | |
6344 | } | |
6345 | ||
6346 | mri_control_stack->else_seen = 1; | |
6347 | ||
6348 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom)); | |
3882b010 | 6349 | q[0] = TOLOWER (qual); |
252b5132 RH |
6350 | q[1] = '\0'; |
6351 | sprintf (buf, "bra%s %s", q, mri_control_stack->bottom); | |
6352 | mri_assemble (buf); | |
6353 | free (buf); | |
6354 | ||
6355 | colon (mri_control_stack->next); | |
6356 | ||
6357 | if (flag_mri) | |
6358 | { | |
6359 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6360 | ++input_line_pointer; | |
6361 | } | |
6362 | ||
6363 | demand_empty_rest_of_line (); | |
6364 | } | |
6365 | ||
6366 | /* Handle the MRI ENDI pseudo-op. */ | |
6367 | ||
6368 | static void | |
31302357 | 6369 | s_mri_endi (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6370 | { |
6371 | if (mri_control_stack == NULL | |
6372 | || mri_control_stack->type != mri_if) | |
6373 | { | |
6374 | as_bad (_("endi without matching if")); | |
6375 | ignore_rest_of_line (); | |
6376 | return; | |
6377 | } | |
6378 | ||
6379 | /* ignore_input will not return true for ENDI, so we don't need to | |
6380 | worry about checking it again here. */ | |
6381 | ||
6382 | if (! mri_control_stack->else_seen) | |
6383 | colon (mri_control_stack->next); | |
6384 | colon (mri_control_stack->bottom); | |
6385 | ||
6386 | pop_mri_control (); | |
6387 | ||
6388 | if (flag_mri) | |
6389 | { | |
6390 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6391 | ++input_line_pointer; | |
6392 | } | |
6393 | ||
6394 | demand_empty_rest_of_line (); | |
6395 | } | |
6396 | ||
6397 | /* Handle the MRI BREAK pseudo-op. */ | |
6398 | ||
6399 | static void | |
31302357 | 6400 | s_mri_break (int extent) |
252b5132 RH |
6401 | { |
6402 | struct mri_control_info *n; | |
6403 | char *buf; | |
6404 | char ex[2]; | |
6405 | ||
6406 | n = mri_control_stack; | |
6407 | while (n != NULL | |
6408 | && n->type != mri_for | |
6409 | && n->type != mri_repeat | |
6410 | && n->type != mri_while) | |
6411 | n = n->outer; | |
6412 | if (n == NULL) | |
6413 | { | |
6414 | as_bad (_("break outside of structured loop")); | |
6415 | ignore_rest_of_line (); | |
6416 | return; | |
6417 | } | |
6418 | ||
6419 | buf = (char *) xmalloc (20 + strlen (n->bottom)); | |
3882b010 | 6420 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6421 | ex[1] = '\0'; |
6422 | sprintf (buf, "bra%s %s", ex, n->bottom); | |
6423 | mri_assemble (buf); | |
6424 | free (buf); | |
6425 | ||
6426 | if (flag_mri) | |
6427 | { | |
6428 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6429 | ++input_line_pointer; | |
6430 | } | |
6431 | ||
6432 | demand_empty_rest_of_line (); | |
6433 | } | |
6434 | ||
6435 | /* Handle the MRI NEXT pseudo-op. */ | |
6436 | ||
6437 | static void | |
31302357 | 6438 | s_mri_next (int extent) |
252b5132 RH |
6439 | { |
6440 | struct mri_control_info *n; | |
6441 | char *buf; | |
6442 | char ex[2]; | |
6443 | ||
6444 | n = mri_control_stack; | |
6445 | while (n != NULL | |
6446 | && n->type != mri_for | |
6447 | && n->type != mri_repeat | |
6448 | && n->type != mri_while) | |
6449 | n = n->outer; | |
6450 | if (n == NULL) | |
6451 | { | |
6452 | as_bad (_("next outside of structured loop")); | |
6453 | ignore_rest_of_line (); | |
6454 | return; | |
6455 | } | |
6456 | ||
6457 | buf = (char *) xmalloc (20 + strlen (n->next)); | |
3882b010 | 6458 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6459 | ex[1] = '\0'; |
6460 | sprintf (buf, "bra%s %s", ex, n->next); | |
6461 | mri_assemble (buf); | |
6462 | free (buf); | |
6463 | ||
6464 | if (flag_mri) | |
6465 | { | |
6466 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6467 | ++input_line_pointer; | |
6468 | } | |
6469 | ||
6470 | demand_empty_rest_of_line (); | |
6471 | } | |
6472 | ||
6473 | /* Handle the MRI FOR pseudo-op. */ | |
6474 | ||
6475 | static void | |
31302357 | 6476 | s_mri_for (int qual) |
252b5132 RH |
6477 | { |
6478 | const char *varstart, *varstop; | |
6479 | const char *initstart, *initstop; | |
6480 | const char *endstart, *endstop; | |
6481 | const char *bystart, *bystop; | |
6482 | int up; | |
6483 | int by; | |
6484 | int extent; | |
6485 | struct mri_control_info *n; | |
6486 | char *buf; | |
6487 | char *s; | |
6488 | char ex[2]; | |
6489 | ||
6490 | /* The syntax is | |
6491 | FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e | |
6492 | */ | |
6493 | ||
6494 | SKIP_WHITESPACE (); | |
6495 | varstart = input_line_pointer; | |
6496 | ||
6497 | /* Look for the '='. */ | |
6498 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
6499 | && *input_line_pointer != '=') | |
6500 | ++input_line_pointer; | |
6501 | if (*input_line_pointer != '=') | |
6502 | { | |
6503 | as_bad (_("missing =")); | |
6504 | ignore_rest_of_line (); | |
6505 | return; | |
6506 | } | |
6507 | ||
6508 | varstop = input_line_pointer; | |
6509 | if (varstop > varstart | |
6510 | && (varstop[-1] == ' ' || varstop[-1] == '\t')) | |
6511 | --varstop; | |
6512 | ||
6513 | ++input_line_pointer; | |
6514 | ||
6515 | initstart = input_line_pointer; | |
6516 | ||
6517 | /* Look for TO or DOWNTO. */ | |
6518 | up = 1; | |
6519 | initstop = NULL; | |
6520 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6521 | { | |
6522 | if (strncasecmp (input_line_pointer, "TO", 2) == 0 | |
6523 | && ! is_part_of_name (input_line_pointer[2])) | |
6524 | { | |
6525 | initstop = input_line_pointer; | |
6526 | input_line_pointer += 2; | |
6527 | break; | |
6528 | } | |
6529 | if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0 | |
6530 | && ! is_part_of_name (input_line_pointer[6])) | |
6531 | { | |
6532 | initstop = input_line_pointer; | |
6533 | up = 0; | |
6534 | input_line_pointer += 6; | |
6535 | break; | |
6536 | } | |
6537 | ++input_line_pointer; | |
6538 | } | |
6539 | if (initstop == NULL) | |
6540 | { | |
6541 | as_bad (_("missing to or downto")); | |
6542 | ignore_rest_of_line (); | |
6543 | return; | |
6544 | } | |
6545 | if (initstop > initstart | |
6546 | && (initstop[-1] == ' ' || initstop[-1] == '\t')) | |
6547 | --initstop; | |
6548 | ||
6549 | SKIP_WHITESPACE (); | |
6550 | endstart = input_line_pointer; | |
6551 | ||
6552 | /* Look for BY or DO. */ | |
6553 | by = 0; | |
6554 | endstop = NULL; | |
6555 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6556 | { | |
6557 | if (strncasecmp (input_line_pointer, "BY", 2) == 0 | |
6558 | && ! is_part_of_name (input_line_pointer[2])) | |
6559 | { | |
6560 | endstop = input_line_pointer; | |
6561 | by = 1; | |
6562 | input_line_pointer += 2; | |
6563 | break; | |
6564 | } | |
6565 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6566 | && (input_line_pointer[2] == '.' | |
6567 | || ! is_part_of_name (input_line_pointer[2]))) | |
6568 | { | |
6569 | endstop = input_line_pointer; | |
6570 | input_line_pointer += 2; | |
6571 | break; | |
6572 | } | |
6573 | ++input_line_pointer; | |
6574 | } | |
6575 | if (endstop == NULL) | |
6576 | { | |
6577 | as_bad (_("missing do")); | |
6578 | ignore_rest_of_line (); | |
6579 | return; | |
6580 | } | |
6581 | if (endstop > endstart | |
6582 | && (endstop[-1] == ' ' || endstop[-1] == '\t')) | |
6583 | --endstop; | |
6584 | ||
6585 | if (! by) | |
6586 | { | |
6587 | bystart = "#1"; | |
6588 | bystop = bystart + 2; | |
6589 | } | |
6590 | else | |
6591 | { | |
6592 | SKIP_WHITESPACE (); | |
6593 | bystart = input_line_pointer; | |
6594 | ||
6595 | /* Look for DO. */ | |
6596 | bystop = NULL; | |
6597 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6598 | { | |
6599 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6600 | && (input_line_pointer[2] == '.' | |
6601 | || ! is_part_of_name (input_line_pointer[2]))) | |
6602 | { | |
6603 | bystop = input_line_pointer; | |
6604 | input_line_pointer += 2; | |
6605 | break; | |
6606 | } | |
6607 | ++input_line_pointer; | |
6608 | } | |
6609 | if (bystop == NULL) | |
6610 | { | |
6611 | as_bad (_("missing do")); | |
6612 | ignore_rest_of_line (); | |
6613 | return; | |
6614 | } | |
6615 | if (bystop > bystart | |
6616 | && (bystop[-1] == ' ' || bystop[-1] == '\t')) | |
6617 | --bystop; | |
6618 | } | |
6619 | ||
6620 | if (*input_line_pointer != '.') | |
6621 | extent = '\0'; | |
6622 | else | |
6623 | { | |
6624 | extent = input_line_pointer[1]; | |
6625 | input_line_pointer += 2; | |
6626 | } | |
6627 | ||
6628 | /* We have fully parsed the FOR operands. Now build the loop. */ | |
252b5132 RH |
6629 | n = push_mri_control (mri_for); |
6630 | ||
6631 | buf = (char *) xmalloc (50 + (input_line_pointer - varstart)); | |
6632 | ||
36759679 | 6633 | /* Move init,var. */ |
252b5132 RH |
6634 | s = buf; |
6635 | *s++ = 'm'; | |
6636 | *s++ = 'o'; | |
6637 | *s++ = 'v'; | |
6638 | *s++ = 'e'; | |
6639 | if (qual != '\0') | |
3882b010 | 6640 | *s++ = TOLOWER (qual); |
252b5132 RH |
6641 | *s++ = ' '; |
6642 | memcpy (s, initstart, initstop - initstart); | |
6643 | s += initstop - initstart; | |
6644 | *s++ = ','; | |
6645 | memcpy (s, varstart, varstop - varstart); | |
6646 | s += varstop - varstart; | |
6647 | *s = '\0'; | |
6648 | mri_assemble (buf); | |
6649 | ||
6650 | colon (n->top); | |
6651 | ||
36759679 | 6652 | /* cmp end,var. */ |
252b5132 RH |
6653 | s = buf; |
6654 | *s++ = 'c'; | |
6655 | *s++ = 'm'; | |
6656 | *s++ = 'p'; | |
6657 | if (qual != '\0') | |
3882b010 | 6658 | *s++ = TOLOWER (qual); |
252b5132 RH |
6659 | *s++ = ' '; |
6660 | memcpy (s, endstart, endstop - endstart); | |
6661 | s += endstop - endstart; | |
6662 | *s++ = ','; | |
6663 | memcpy (s, varstart, varstop - varstart); | |
6664 | s += varstop - varstart; | |
6665 | *s = '\0'; | |
6666 | mri_assemble (buf); | |
6667 | ||
36759679 | 6668 | /* bcc bottom. */ |
3882b010 | 6669 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6670 | ex[1] = '\0'; |
6671 | if (up) | |
6672 | sprintf (buf, "blt%s %s", ex, n->bottom); | |
6673 | else | |
6674 | sprintf (buf, "bgt%s %s", ex, n->bottom); | |
6675 | mri_assemble (buf); | |
6676 | ||
6677 | /* Put together the add or sub instruction used by ENDF. */ | |
6678 | s = buf; | |
6679 | if (up) | |
6680 | strcpy (s, "add"); | |
6681 | else | |
6682 | strcpy (s, "sub"); | |
6683 | s += 3; | |
6684 | if (qual != '\0') | |
3882b010 | 6685 | *s++ = TOLOWER (qual); |
252b5132 RH |
6686 | *s++ = ' '; |
6687 | memcpy (s, bystart, bystop - bystart); | |
6688 | s += bystop - bystart; | |
6689 | *s++ = ','; | |
6690 | memcpy (s, varstart, varstop - varstart); | |
6691 | s += varstop - varstart; | |
6692 | *s = '\0'; | |
6693 | n->incr = buf; | |
6694 | ||
6695 | if (flag_mri) | |
6696 | { | |
6697 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6698 | ++input_line_pointer; | |
6699 | } | |
6700 | ||
6701 | demand_empty_rest_of_line (); | |
6702 | } | |
6703 | ||
6704 | /* Handle the MRI ENDF pseudo-op. */ | |
6705 | ||
6706 | static void | |
31302357 | 6707 | s_mri_endf (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6708 | { |
6709 | if (mri_control_stack == NULL | |
6710 | || mri_control_stack->type != mri_for) | |
6711 | { | |
6712 | as_bad (_("endf without for")); | |
6713 | ignore_rest_of_line (); | |
6714 | return; | |
6715 | } | |
6716 | ||
6717 | colon (mri_control_stack->next); | |
6718 | ||
6719 | mri_assemble (mri_control_stack->incr); | |
6720 | ||
6721 | sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top); | |
6722 | mri_assemble (mri_control_stack->incr); | |
6723 | ||
6724 | free (mri_control_stack->incr); | |
6725 | ||
6726 | colon (mri_control_stack->bottom); | |
6727 | ||
6728 | pop_mri_control (); | |
6729 | ||
6730 | if (flag_mri) | |
6731 | { | |
6732 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6733 | ++input_line_pointer; | |
6734 | } | |
6735 | ||
6736 | demand_empty_rest_of_line (); | |
6737 | } | |
6738 | ||
6739 | /* Handle the MRI REPEAT pseudo-op. */ | |
6740 | ||
6741 | static void | |
31302357 | 6742 | s_mri_repeat (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6743 | { |
6744 | struct mri_control_info *n; | |
6745 | ||
6746 | n = push_mri_control (mri_repeat); | |
6747 | colon (n->top); | |
6748 | if (flag_mri) | |
6749 | { | |
6750 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6751 | ++input_line_pointer; | |
6752 | } | |
6753 | demand_empty_rest_of_line (); | |
6754 | } | |
6755 | ||
6756 | /* Handle the MRI UNTIL pseudo-op. */ | |
6757 | ||
6758 | static void | |
31302357 | 6759 | s_mri_until (int qual) |
252b5132 RH |
6760 | { |
6761 | char *s; | |
6762 | ||
6763 | if (mri_control_stack == NULL | |
6764 | || mri_control_stack->type != mri_repeat) | |
6765 | { | |
6766 | as_bad (_("until without repeat")); | |
6767 | ignore_rest_of_line (); | |
6768 | return; | |
6769 | } | |
6770 | ||
6771 | colon (mri_control_stack->next); | |
6772 | ||
6773 | for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++) | |
6774 | ; | |
6775 | ||
6776 | parse_mri_control_expression (s, qual, (const char *) NULL, | |
6777 | mri_control_stack->top, '\0'); | |
6778 | ||
6779 | colon (mri_control_stack->bottom); | |
6780 | ||
6781 | input_line_pointer = s; | |
6782 | ||
6783 | pop_mri_control (); | |
6784 | ||
6785 | if (flag_mri) | |
6786 | { | |
6787 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6788 | ++input_line_pointer; | |
6789 | } | |
6790 | ||
6791 | demand_empty_rest_of_line (); | |
6792 | } | |
6793 | ||
6794 | /* Handle the MRI WHILE pseudo-op. */ | |
6795 | ||
6796 | static void | |
31302357 | 6797 | s_mri_while (int qual) |
252b5132 RH |
6798 | { |
6799 | char *s; | |
6800 | ||
6801 | struct mri_control_info *n; | |
6802 | ||
6803 | s = input_line_pointer; | |
e1f44d10 NC |
6804 | /* We only accept '*' as introduction of comments if preceded by white space |
6805 | or at first column of a line (I think this can't actually happen here?) | |
6806 | This is important when assembling: | |
6807 | while d0 <ne> 12(a0,d0*2) do | |
36759679 | 6808 | while d0 <ne> #CONST*20 do. */ |
8a104df9 KH |
6809 | while (! (is_end_of_line[(unsigned char) *s] |
6810 | || (flag_mri | |
6811 | && *s == '*' | |
6812 | && (s == input_line_pointer | |
6813 | || *(s-1) == ' ' | |
6814 | || *(s-1) == '\t')))) | |
252b5132 RH |
6815 | s++; |
6816 | --s; | |
6817 | while (*s == ' ' || *s == '\t') | |
6818 | --s; | |
6819 | if (s - input_line_pointer > 1 | |
6820 | && s[-1] == '.') | |
6821 | s -= 2; | |
6822 | if (s - input_line_pointer < 2 | |
6823 | || strncasecmp (s - 1, "DO", 2) != 0) | |
6824 | { | |
6825 | as_bad (_("missing do")); | |
6826 | ignore_rest_of_line (); | |
6827 | return; | |
6828 | } | |
6829 | ||
6830 | n = push_mri_control (mri_while); | |
6831 | ||
6832 | colon (n->next); | |
6833 | ||
6834 | parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom, | |
6835 | s[1] == '.' ? s[2] : '\0'); | |
6836 | ||
6837 | input_line_pointer = s + 1; | |
6838 | if (*input_line_pointer == '.') | |
6839 | input_line_pointer += 2; | |
6840 | ||
6841 | if (flag_mri) | |
6842 | { | |
6843 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6844 | ++input_line_pointer; | |
6845 | } | |
6846 | ||
6847 | demand_empty_rest_of_line (); | |
6848 | } | |
6849 | ||
6850 | /* Handle the MRI ENDW pseudo-op. */ | |
6851 | ||
6852 | static void | |
31302357 | 6853 | s_mri_endw (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6854 | { |
6855 | char *buf; | |
6856 | ||
6857 | if (mri_control_stack == NULL | |
6858 | || mri_control_stack->type != mri_while) | |
6859 | { | |
6860 | as_bad (_("endw without while")); | |
6861 | ignore_rest_of_line (); | |
6862 | return; | |
6863 | } | |
6864 | ||
6865 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->next)); | |
6866 | sprintf (buf, "bra %s", mri_control_stack->next); | |
6867 | mri_assemble (buf); | |
6868 | free (buf); | |
6869 | ||
6870 | colon (mri_control_stack->bottom); | |
6871 | ||
6872 | pop_mri_control (); | |
6873 | ||
6874 | if (flag_mri) | |
6875 | { | |
6876 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6877 | ++input_line_pointer; | |
6878 | } | |
6879 | ||
6880 | demand_empty_rest_of_line (); | |
6881 | } | |
6882 | \f | |
266abb8f NS |
6883 | /* Parse a .cpu directive. */ |
6884 | ||
6885 | static void | |
6886 | s_m68k_cpu (int ignored ATTRIBUTE_UNUSED) | |
6887 | { | |
6888 | char saved_char; | |
6889 | char *name; | |
6890 | ||
6891 | if (initialized) | |
6892 | { | |
6893 | as_bad (_("already assembled instructions")); | |
6894 | ignore_rest_of_line (); | |
6895 | return; | |
6896 | } | |
6897 | ||
6898 | name = input_line_pointer; | |
6899 | while (*input_line_pointer && !ISSPACE(*input_line_pointer)) | |
6900 | input_line_pointer++; | |
6901 | saved_char = *input_line_pointer; | |
6902 | *input_line_pointer = 0; | |
6903 | ||
6904 | m68k_set_cpu (name, 1, 0); | |
6905 | ||
6906 | *input_line_pointer = saved_char; | |
6907 | demand_empty_rest_of_line (); | |
6908 | return; | |
6909 | } | |
6910 | ||
6911 | /* Parse a .arch directive. */ | |
6912 | ||
6913 | static void | |
6914 | s_m68k_arch (int ignored ATTRIBUTE_UNUSED) | |
6915 | { | |
6916 | char saved_char; | |
6917 | char *name; | |
6918 | ||
6919 | if (initialized) | |
6920 | { | |
6921 | as_bad (_("already assembled instructions")); | |
6922 | ignore_rest_of_line (); | |
6923 | return; | |
6924 | } | |
6925 | ||
6926 | name = input_line_pointer; | |
6927 | while (*input_line_pointer && *input_line_pointer != ',' | |
6928 | && !ISSPACE (*input_line_pointer)) | |
6929 | input_line_pointer++; | |
6930 | saved_char = *input_line_pointer; | |
6931 | *input_line_pointer = 0; | |
6932 | ||
6933 | if (m68k_set_arch (name, 1, 0)) | |
6934 | { | |
6935 | /* Scan extensions. */ | |
6936 | do | |
6937 | { | |
6938 | *input_line_pointer++ = saved_char; | |
6939 | if (!*input_line_pointer || ISSPACE (*input_line_pointer)) | |
6940 | break; | |
6941 | name = input_line_pointer; | |
6942 | while (*input_line_pointer && *input_line_pointer != ',' | |
6943 | && !ISSPACE (*input_line_pointer)) | |
6944 | input_line_pointer++; | |
6945 | saved_char = *input_line_pointer; | |
6946 | *input_line_pointer = 0; | |
6947 | } | |
6948 | while (m68k_set_extension (name, 1, 0)); | |
6949 | } | |
6950 | ||
6951 | *input_line_pointer = saved_char; | |
6952 | demand_empty_rest_of_line (); | |
6953 | return; | |
6954 | } | |
6955 | \f | |
6956 | /* Lookup a cpu name in TABLE and return the slot found. Return NULL | |
6957 | if none is found, the caller is responsible for emitting an error | |
6958 | message. If ALLOW_M is non-zero, we allow an initial 'm' on the | |
6959 | cpu name, if it begins with a '6' (possibly skipping an intervening | |
6960 | 'c'. We also allow a 'c' in the same place. if NEGATED is | |
6961 | non-zero, we accept a leading 'no-' and *NEGATED is set to true, if | |
6962 | the option is indeed negated. */ | |
6963 | ||
6964 | static const struct m68k_cpu * | |
6965 | m68k_lookup_cpu (const char *arg, const struct m68k_cpu *table, | |
6966 | int allow_m, int *negated) | |
6967 | { | |
6968 | /* allow negated value? */ | |
6969 | if (negated) | |
6970 | { | |
6971 | *negated = 0; | |
6972 | ||
6973 | if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-') | |
6974 | { | |
6975 | arg += 3; | |
6976 | *negated = 1; | |
6977 | } | |
6978 | } | |
6979 | ||
6980 | /* Remove 'm' or 'mc' prefix from 68k variants. */ | |
6981 | if (allow_m) | |
6982 | { | |
6983 | if (arg[0] == 'm') | |
6984 | { | |
6985 | if (arg[1] == '6') | |
6986 | arg += 1; | |
6987 | else if (arg[1] == 'c' && arg[2] == '6') | |
6988 | arg += 2; | |
6989 | } | |
6990 | } | |
6991 | else if (arg[0] == 'c' && arg[1] == '6') | |
6992 | arg += 1; | |
6993 | ||
6994 | for (; table->name; table++) | |
6995 | if (!strcmp (arg, table->name)) | |
2da12c60 NS |
6996 | { |
6997 | if (table->alias < -1 || table->alias > 1) | |
6998 | as_bad (_("`%s' is deprecated, use `%s'"), | |
6999 | table->name, table[table->alias < 0 ? 1 : -1].name); | |
7000 | return table; | |
7001 | } | |
266abb8f NS |
7002 | return 0; |
7003 | } | |
7004 | ||
7005 | /* Set the cpu, issuing errors if it is unrecognized, or invalid */ | |
7006 | ||
7007 | static int | |
7008 | m68k_set_cpu (char const *name, int allow_m, int silent) | |
7009 | { | |
7010 | const struct m68k_cpu *cpu; | |
7011 | ||
7012 | cpu = m68k_lookup_cpu (name, m68k_cpus, allow_m, NULL); | |
7013 | ||
7014 | if (!cpu) | |
7015 | { | |
7016 | if (!silent) | |
7017 | as_bad (_("cpu `%s' unrecognized"), name); | |
7018 | return 0; | |
7019 | } | |
7020 | ||
7021 | if (selected_cpu && selected_cpu != cpu) | |
7022 | { | |
7023 | as_bad (_("already selected `%s' processor"), | |
7024 | selected_cpu->name); | |
7025 | return 0; | |
7026 | } | |
7027 | selected_cpu = cpu; | |
7028 | return 1; | |
7029 | } | |
7030 | ||
7031 | /* Set the architecture, issuing errors if it is unrecognized, or invalid */ | |
7032 | ||
7033 | static int | |
7034 | m68k_set_arch (char const *name, int allow_m, int silent) | |
7035 | { | |
7036 | const struct m68k_cpu *arch; | |
7037 | ||
7038 | arch = m68k_lookup_cpu (name, m68k_archs, allow_m, NULL); | |
7039 | ||
7040 | if (!arch) | |
7041 | { | |
7042 | if (!silent) | |
7043 | as_bad (_("architecture `%s' unrecognized"), name); | |
7044 | return 0; | |
7045 | } | |
7046 | ||
7047 | if (selected_arch && selected_arch != arch) | |
7048 | { | |
7049 | as_bad (_("already selected `%s' architecture"), | |
7050 | selected_arch->name); | |
7051 | return 0; | |
7052 | } | |
7053 | ||
7054 | selected_arch = arch; | |
7055 | return 1; | |
7056 | } | |
7057 | ||
7058 | /* Set the architecture extension, issuing errors if it is | |
7059 | unrecognized, or invalid */ | |
7060 | ||
7061 | static int | |
7062 | m68k_set_extension (char const *name, int allow_m, int silent) | |
7063 | { | |
7064 | int negated; | |
7065 | const struct m68k_cpu *ext; | |
7066 | ||
7067 | ext = m68k_lookup_cpu (name, m68k_extensions, allow_m, &negated); | |
7068 | ||
7069 | if (!ext) | |
7070 | { | |
7071 | if (!silent) | |
7072 | as_bad (_("extension `%s' unrecognized"), name); | |
7073 | return 0; | |
7074 | } | |
7075 | ||
7076 | if (negated) | |
7077 | not_current_architecture |= ext->arch; | |
7078 | else | |
7079 | current_architecture |= ext->arch; | |
7080 | return 1; | |
7081 | } | |
7082 | ||
31302357 AS |
7083 | /* md_parse_option |
7084 | Invocation line includes a switch not recognized by the base assembler. | |
266abb8f | 7085 | */ |
252b5132 RH |
7086 | |
7087 | #ifdef OBJ_ELF | |
5a38dc70 | 7088 | const char *md_shortopts = "lSA:m:kQ:V"; |
252b5132 | 7089 | #else |
5a38dc70 | 7090 | const char *md_shortopts = "lSA:m:k"; |
252b5132 RH |
7091 | #endif |
7092 | ||
7093 | struct option md_longopts[] = { | |
7094 | #define OPTION_PIC (OPTION_MD_BASE) | |
7095 | {"pic", no_argument, NULL, OPTION_PIC}, | |
7096 | #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1) | |
7097 | {"register-prefix-optional", no_argument, NULL, | |
7098 | OPTION_REGISTER_PREFIX_OPTIONAL}, | |
7099 | #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2) | |
7100 | {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR}, | |
7101 | #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3) | |
7102 | {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16}, | |
7103 | #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4) | |
7104 | {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32}, | |
7105 | #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5) | |
7106 | {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16}, | |
7107 | #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6) | |
7108 | {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32}, | |
28e7409f NC |
7109 | #define OPTION_PCREL (OPTION_MD_BASE + 7) |
7110 | {"pcrel", no_argument, NULL, OPTION_PCREL}, | |
252b5132 RH |
7111 | {NULL, no_argument, NULL, 0} |
7112 | }; | |
bc805888 | 7113 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
7114 | |
7115 | int | |
31302357 | 7116 | md_parse_option (int c, char *arg) |
252b5132 RH |
7117 | { |
7118 | switch (c) | |
7119 | { | |
7120 | case 'l': /* -l means keep external to 2 bit offset | |
36759679 | 7121 | rather than 16 bit one. */ |
252b5132 RH |
7122 | flag_short_refs = 1; |
7123 | break; | |
7124 | ||
7125 | case 'S': /* -S means that jbsr's always turn into | |
7126 | jsr's. */ | |
7127 | flag_long_jumps = 1; | |
7128 | break; | |
7129 | ||
28e7409f NC |
7130 | case OPTION_PCREL: /* --pcrel means never turn PC-relative |
7131 | branches into absolute jumps. */ | |
7132 | flag_keep_pcrel = 1; | |
7133 | break; | |
7134 | ||
252b5132 RH |
7135 | case OPTION_PIC: |
7136 | case 'k': | |
7137 | flag_want_pic = 1; | |
36759679 | 7138 | break; /* -pic, Position Independent Code. */ |
252b5132 RH |
7139 | |
7140 | case OPTION_REGISTER_PREFIX_OPTIONAL: | |
7141 | flag_reg_prefix_optional = 1; | |
7142 | reg_prefix_optional_seen = 1; | |
7143 | break; | |
7144 | ||
7145 | /* -V: SVR4 argument to print version ID. */ | |
7146 | case 'V': | |
7147 | print_version_id (); | |
7148 | break; | |
7149 | ||
7150 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
7151 | should be emitted or not. FIXME: Not implemented. */ | |
7152 | case 'Q': | |
7153 | break; | |
7154 | ||
7155 | case OPTION_BITWISE_OR: | |
7156 | { | |
7157 | char *n, *t; | |
7158 | const char *s; | |
7159 | ||
7160 | n = (char *) xmalloc (strlen (m68k_comment_chars) + 1); | |
7161 | t = n; | |
7162 | for (s = m68k_comment_chars; *s != '\0'; s++) | |
7163 | if (*s != '|') | |
7164 | *t++ = *s; | |
7165 | *t = '\0'; | |
7166 | m68k_comment_chars = n; | |
7167 | } | |
7168 | break; | |
7169 | ||
7170 | case OPTION_BASE_SIZE_DEFAULT_16: | |
7171 | m68k_index_width_default = SIZE_WORD; | |
7172 | break; | |
7173 | ||
7174 | case OPTION_BASE_SIZE_DEFAULT_32: | |
7175 | m68k_index_width_default = SIZE_LONG; | |
7176 | break; | |
7177 | ||
7178 | case OPTION_DISP_SIZE_DEFAULT_16: | |
7179 | m68k_rel32 = 0; | |
7180 | m68k_rel32_from_cmdline = 1; | |
7181 | break; | |
7182 | ||
7183 | case OPTION_DISP_SIZE_DEFAULT_32: | |
7184 | m68k_rel32 = 1; | |
7185 | m68k_rel32_from_cmdline = 1; | |
7186 | break; | |
7187 | ||
266abb8f NS |
7188 | case 'A': |
7189 | #if WARN_DEPRECATED | |
7190 | as_tsktsk (_ ("option `-A%s' is deprecated: use `-%s'", | |
7191 | arg, arg)); | |
7192 | #endif | |
7193 | /* Intentional fall-through. */ | |
7194 | case 'm': | |
7195 | if (!strncmp (arg, "arch=", 5)) | |
7196 | m68k_set_arch (arg + 5, 1, 0); | |
7197 | else if (!strncmp (arg, "cpu=", 4)) | |
7198 | m68k_set_cpu (arg + 4, 1, 0); | |
7199 | else if (m68k_set_extension (arg, 0, 1)) | |
7200 | ; | |
0b2e31dc NS |
7201 | else if (m68k_set_arch (arg, 0, 1)) |
7202 | ; | |
266abb8f NS |
7203 | else if (m68k_set_cpu (arg, 0, 1)) |
7204 | ; | |
7205 | else | |
7206 | return 0; | |
7207 | break; | |
7208 | ||
252b5132 RH |
7209 | default: |
7210 | return 0; | |
7211 | } | |
7212 | ||
7213 | return 1; | |
7214 | } | |
7215 | ||
266abb8f NS |
7216 | /* Setup tables from the selected arch and/or cpu */ |
7217 | ||
7218 | static void | |
7219 | m68k_init_arch (void) | |
7220 | { | |
266abb8f NS |
7221 | if (not_current_architecture & current_architecture) |
7222 | { | |
7223 | as_bad (_("architecture features both enabled and disabled")); | |
7224 | not_current_architecture &= ~current_architecture; | |
7225 | } | |
7226 | if (selected_arch) | |
2da12c60 NS |
7227 | { |
7228 | current_architecture |= selected_arch->arch; | |
7229 | control_regs = selected_arch->control_regs; | |
7230 | } | |
0b2e31dc NS |
7231 | else |
7232 | current_architecture |= selected_cpu->arch; | |
0b2e31dc | 7233 | |
2da12c60 NS |
7234 | current_architecture &= ~not_current_architecture; |
7235 | ||
0b2e31dc | 7236 | if (selected_cpu) |
266abb8f | 7237 | { |
2da12c60 | 7238 | control_regs = selected_cpu->control_regs; |
0b2e31dc | 7239 | if (current_architecture & ~selected_cpu->arch) |
266abb8f | 7240 | { |
0b2e31dc NS |
7241 | as_bad (_("selected processor does not have all features of selected architecture")); |
7242 | current_architecture | |
7243 | = selected_cpu->arch & ~not_current_architecture; | |
266abb8f NS |
7244 | } |
7245 | } | |
266abb8f | 7246 | |
0b2e31dc NS |
7247 | if ((current_architecture & (cfloat | m68881)) == (cfloat | m68881)) |
7248 | { | |
7249 | /* Determine which float is really meant. */ | |
7250 | if (current_architecture & (m68k_mask & ~m68881)) | |
7251 | current_architecture ^= cfloat; | |
7252 | else | |
7253 | current_architecture ^= m68881; | |
7254 | } | |
7255 | ||
266abb8f NS |
7256 | if ((current_architecture & m68k_mask) |
7257 | && (current_architecture & ~m68k_mask)) | |
7258 | { | |
7259 | as_bad (_ ("m68k and cf features both selected")); | |
0b2e31dc | 7260 | if (current_architecture & m68k_mask) |
266abb8f NS |
7261 | current_architecture &= m68k_mask; |
7262 | else | |
7263 | current_architecture &= ~m68k_mask; | |
7264 | } | |
7265 | ||
7266 | /* Permit m68881 specification with all cpus; those that can't work | |
7267 | with a coprocessor could be doing emulation. */ | |
7268 | if (current_architecture & m68851) | |
7269 | { | |
7270 | if (current_architecture & m68040) | |
7271 | as_warn (_("68040 and 68851 specified; mmu instructions may assemble incorrectly")); | |
7272 | } | |
7273 | /* What other incompatibilities could we check for? */ | |
7274 | ||
266abb8f NS |
7275 | if (cpu_of_arch (current_architecture) < m68020 |
7276 | || arch_coldfire_p (current_architecture)) | |
7277 | md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0; | |
7278 | ||
7279 | initialized = 1; | |
7280 | } | |
7281 | ||
252b5132 | 7282 | void |
31302357 | 7283 | md_show_usage (FILE *stream) |
252b5132 | 7284 | { |
76f57f3a | 7285 | const char *default_cpu = TARGET_CPU; |
f1f5ef86 AM |
7286 | int i; |
7287 | unsigned int default_arch; | |
76f57f3a | 7288 | |
8a104df9 | 7289 | /* Get the canonical name for the default target CPU. */ |
76f57f3a JT |
7290 | if (*default_cpu == 'm') |
7291 | default_cpu++; | |
266abb8f | 7292 | for (i = 0; m68k_cpus[i].name; i++) |
76f57f3a | 7293 | { |
266abb8f | 7294 | if (strcasecmp (default_cpu, m68k_cpus[i].name) == 0) |
76f57f3a | 7295 | { |
266abb8f | 7296 | default_arch = m68k_cpus[i].arch; |
2da12c60 NS |
7297 | while (m68k_cpus[i].alias > 0) |
7298 | i--; | |
7299 | while (m68k_cpus[i].alias < 0) | |
7300 | i++; | |
7301 | default_cpu = m68k_cpus[i].name; | |
76f57f3a JT |
7302 | } |
7303 | } | |
7304 | ||
bc805888 | 7305 | fprintf (stream, _("\ |
266abb8f NS |
7306 | -march=<arch> set architecture\n\ |
7307 | -mcpu=<cpu> set cpu [default %s]\n\ | |
7308 | "), default_cpu); | |
7309 | for (i = 0; m68k_extensions[i].name; i++) | |
7310 | fprintf (stream, _("\ | |
0b2e31dc NS |
7311 | -m[no-]%-16s enable/disable%s architecture extension\n\ |
7312 | "), m68k_extensions[i].name, | |
7313 | m68k_extensions[i].alias > 0 ? " ColdFire" | |
7314 | : m68k_extensions[i].alias < 0 ? " m68k" : ""); | |
266abb8f | 7315 | |
bc805888 | 7316 | fprintf (stream, _("\ |
266abb8f | 7317 | -l use 1 word for refs to undefined symbols [default 2]\n\ |
252b5132 RH |
7318 | -pic, -k generate position independent code\n\ |
7319 | -S turn jbsr into jsr\n\ | |
28e7409f | 7320 | --pcrel never turn PC-relative branches into absolute jumps\n\ |
252b5132 RH |
7321 | --register-prefix-optional\n\ |
7322 | recognize register names without prefix character\n\ | |
266abb8f | 7323 | --bitwise-or do not treat `|' as a comment character\n\ |
252b5132 RH |
7324 | --base-size-default-16 base reg without size is 16 bits\n\ |
7325 | --base-size-default-32 base reg without size is 32 bits (default)\n\ | |
7326 | --disp-size-default-16 displacement with unknown size is 16 bits\n\ | |
266abb8f NS |
7327 | --disp-size-default-32 displacement with unknown size is 32 bits (default)\n\ |
7328 | ")); | |
7329 | ||
7330 | fprintf (stream, _("Architecture variants are: ")); | |
7331 | for (i = 0; m68k_archs[i].name; i++) | |
7332 | { | |
7333 | if (i) | |
7334 | fprintf (stream, " | "); | |
7335 | fprintf (stream, m68k_archs[i].name); | |
7336 | } | |
7337 | fprintf (stream, "\n"); | |
7338 | ||
7339 | fprintf (stream, _("Processor variants are: ")); | |
7340 | for (i = 0; m68k_cpus[i].name; i++) | |
7341 | { | |
7342 | if (i) | |
7343 | fprintf (stream, " | "); | |
7344 | fprintf (stream, m68k_cpus[i].name); | |
7345 | } | |
7346 | fprintf (stream, _("\n")); | |
252b5132 RH |
7347 | } |
7348 | \f | |
7349 | #ifdef TEST2 | |
7350 | ||
7351 | /* TEST2: Test md_assemble() */ | |
36759679 NC |
7352 | /* Warning, this routine probably doesn't work anymore. */ |
7353 | int | |
31302357 | 7354 | main (void) |
252b5132 RH |
7355 | { |
7356 | struct m68k_it the_ins; | |
7357 | char buf[120]; | |
7358 | char *cp; | |
7359 | int n; | |
7360 | ||
7361 | m68k_ip_begin (); | |
7362 | for (;;) | |
7363 | { | |
7364 | if (!gets (buf) || !*buf) | |
7365 | break; | |
7366 | if (buf[0] == '|' || buf[1] == '.') | |
7367 | continue; | |
7368 | for (cp = buf; *cp; cp++) | |
7369 | if (*cp == '\t') | |
7370 | *cp = ' '; | |
7371 | if (is_label (buf)) | |
7372 | continue; | |
7373 | memset (&the_ins, '\0', sizeof (the_ins)); | |
7374 | m68k_ip (&the_ins, buf); | |
7375 | if (the_ins.error) | |
7376 | { | |
7377 | printf (_("Error %s in %s\n"), the_ins.error, buf); | |
7378 | } | |
7379 | else | |
7380 | { | |
7381 | printf (_("Opcode(%d.%s): "), the_ins.numo, the_ins.args); | |
7382 | for (n = 0; n < the_ins.numo; n++) | |
7383 | printf (" 0x%x", the_ins.opcode[n] & 0xffff); | |
7384 | printf (" "); | |
7385 | print_the_insn (&the_ins.opcode[0], stdout); | |
7386 | (void) putchar ('\n'); | |
7387 | } | |
7388 | for (n = 0; n < strlen (the_ins.args) / 2; n++) | |
7389 | { | |
7390 | if (the_ins.operands[n].error) | |
7391 | { | |
7392 | printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf); | |
7393 | continue; | |
7394 | } | |
31302357 AS |
7395 | printf ("mode %d, reg %d, ", the_ins.operands[n].mode, |
7396 | the_ins.operands[n].reg); | |
252b5132 | 7397 | if (the_ins.operands[n].b_const) |
31302357 AS |
7398 | printf ("Constant: '%.*s', ", |
7399 | 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const, | |
7400 | the_ins.operands[n].b_const); | |
7401 | printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg, | |
7402 | the_ins.operands[n].isiz, the_ins.operands[n].imul); | |
252b5132 | 7403 | if (the_ins.operands[n].b_iadd) |
31302357 AS |
7404 | printf ("Iadd: '%.*s',", |
7405 | 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd, | |
7406 | the_ins.operands[n].b_iadd); | |
7407 | putchar ('\n'); | |
252b5132 RH |
7408 | } |
7409 | } | |
7410 | m68k_ip_end (); | |
7411 | return 0; | |
7412 | } | |
7413 | ||
31302357 AS |
7414 | int |
7415 | is_label (char *str) | |
252b5132 RH |
7416 | { |
7417 | while (*str == ' ') | |
7418 | str++; | |
7419 | while (*str && *str != ' ') | |
7420 | str++; | |
7421 | if (str[-1] == ':' || str[1] == '=') | |
7422 | return 1; | |
7423 | return 0; | |
7424 | } | |
7425 | ||
7426 | #endif | |
7427 | ||
7428 | /* Possible states for relaxation: | |
7429 | ||
7430 | 0 0 branch offset byte (bra, etc) | |
7431 | 0 1 word | |
7432 | 0 2 long | |
7433 | ||
7434 | 1 0 indexed offsets byte a0@(32,d4:w:1) etc | |
7435 | 1 1 word | |
7436 | 1 2 long | |
7437 | ||
7438 | 2 0 two-offset index word-word a0@(32,d4)@(45) etc | |
7439 | 2 1 word-long | |
7440 | 2 2 long-word | |
7441 | 2 3 long-long | |
7442 | ||
7443 | */ | |
7444 | ||
7445 | /* We have no need to default values of symbols. */ | |
7446 | ||
252b5132 | 7447 | symbolS * |
31302357 | 7448 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 RH |
7449 | { |
7450 | return 0; | |
7451 | } | |
7452 | ||
7453 | /* Round up a section size to the appropriate boundary. */ | |
7454 | valueT | |
31302357 | 7455 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) |
252b5132 RH |
7456 | { |
7457 | #ifdef OBJ_AOUT | |
252b5132 RH |
7458 | /* For a.out, force the section size to be aligned. If we don't do |
7459 | this, BFD will align it for us, but it will not write out the | |
7460 | final bytes of the section. This may be a bug in BFD, but it is | |
7461 | easier to fix it here since that is how the other a.out targets | |
7462 | work. */ | |
7463 | int align; | |
7464 | ||
7465 | align = bfd_get_section_alignment (stdoutput, segment); | |
7466 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
252b5132 RH |
7467 | #endif |
7468 | ||
7469 | return size; | |
7470 | } | |
7471 | ||
7472 | /* Exactly what point is a PC-relative offset relative TO? | |
7473 | On the 68k, it is relative to the address of the first extension | |
7474 | word. The difference between the addresses of the offset and the | |
92774660 | 7475 | first extension word is stored in fx_pcrel_adjust. */ |
252b5132 | 7476 | long |
31302357 | 7477 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
7478 | { |
7479 | int adjust; | |
7480 | ||
8390138c AS |
7481 | /* Because fx_pcrel_adjust is a char, and may be unsigned, we explicitly |
7482 | sign extend the value here. */ | |
7483 | adjust = ((fixP->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80; | |
252b5132 RH |
7484 | if (adjust == 64) |
7485 | adjust = -1; | |
7486 | return fixP->fx_where + fixP->fx_frag->fr_address - adjust; | |
7487 | } | |
7488 | ||
0d96863f | 7489 | #ifdef OBJ_ELF |
8a104df9 | 7490 | void |
31302357 | 7491 | m68k_elf_final_processing (void) |
0d96863f | 7492 | { |
266abb8f NS |
7493 | unsigned flags = 0; |
7494 | ||
238d258f | 7495 | if (arch_coldfire_fpu (current_architecture)) |
266abb8f NS |
7496 | flags |= EF_M68K_CFV4E; |
7497 | /* Set file-specific flags if this is a cpu32 processor. */ | |
8a104df9 | 7498 | if (cpu_of_arch (current_architecture) & cpu32) |
266abb8f | 7499 | flags |= EF_M68K_CPU32; |
8a104df9 KH |
7500 | else if ((cpu_of_arch (current_architecture) & m68000up) |
7501 | && !(cpu_of_arch (current_architecture) & m68020up)) | |
266abb8f NS |
7502 | flags |= EF_M68K_M68000; |
7503 | ||
7504 | if (current_architecture & mcfisa_a) | |
7505 | { | |
0b2e31dc NS |
7506 | static const unsigned isa_features[][2] = |
7507 | { | |
7508 | {EF_M68K_ISA_A_NODIV, mcfisa_a}, | |
7509 | {EF_M68K_ISA_A, mcfisa_a|mcfhwdiv}, | |
7510 | {EF_M68K_ISA_A_PLUS,mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp}, | |
7511 | {EF_M68K_ISA_B_NOUSP,mcfisa_a|mcfisa_b|mcfhwdiv}, | |
7512 | {EF_M68K_ISA_B, mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp}, | |
7513 | {0,0}, | |
7514 | }; | |
7515 | static const unsigned mac_features[][2] = | |
7516 | { | |
7517 | {EF_M68K_MAC, mcfmac}, | |
7518 | {EF_M68K_EMAC, mcfemac}, | |
7519 | {0,0}, | |
7520 | }; | |
7521 | unsigned ix; | |
7522 | unsigned pattern; | |
266abb8f | 7523 | |
0b2e31dc NS |
7524 | pattern = (current_architecture |
7525 | & (mcfisa_a|mcfisa_aa|mcfisa_b|mcfhwdiv|mcfusp)); | |
7526 | for (ix = 0; isa_features[ix][1]; ix++) | |
7527 | { | |
7528 | if (pattern == isa_features[ix][1]) | |
7529 | { | |
7530 | flags |= isa_features[ix][0]; | |
7531 | break; | |
7532 | } | |
7533 | } | |
7534 | if (!isa_features[ix][1]) | |
7535 | { | |
7536 | cf_bad: | |
7537 | as_warn (_("Not a defined coldfire architecture")); | |
7538 | } | |
7539 | else | |
7540 | { | |
7541 | if (current_architecture & cfloat) | |
7542 | flags |= EF_M68K_FLOAT | EF_M68K_CFV4E; | |
266abb8f | 7543 | |
0b2e31dc NS |
7544 | pattern = current_architecture & (mcfmac|mcfemac); |
7545 | if (pattern) | |
7546 | { | |
7547 | for (ix = 0; mac_features[ix][1]; ix++) | |
7548 | { | |
7549 | if (pattern == mac_features[ix][1]) | |
7550 | { | |
7551 | flags |= mac_features[ix][0]; | |
7552 | break; | |
7553 | } | |
7554 | } | |
7555 | if (!mac_features[ix][1]) | |
7556 | goto cf_bad; | |
7557 | } | |
7558 | } | |
266abb8f NS |
7559 | } |
7560 | elf_elfheader (stdoutput)->e_flags |= flags; | |
0d96863f CM |
7561 | } |
7562 | #endif | |
c04898f8 AS |
7563 | |
7564 | int | |
7565 | tc_m68k_regname_to_dw2regnum (const char *regname) | |
7566 | { | |
7567 | unsigned int regnum; | |
7568 | static const char *const regnames[] = | |
7569 | { | |
7570 | "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", | |
7571 | "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", | |
7572 | "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", | |
7573 | "pc" | |
7574 | }; | |
7575 | ||
7576 | for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++) | |
7577 | if (strcmp (regname, regnames[regnum]) == 0) | |
7578 | return regnum; | |
7579 | ||
7580 | return -1; | |
7581 | } | |
7582 | ||
7583 | void | |
7584 | tc_m68k_frame_initial_instructions (void) | |
7585 | { | |
7586 | static int sp_regno = -1; | |
7587 | ||
7588 | if (sp_regno < 0) | |
7589 | sp_regno = tc_m68k_regname_to_dw2regnum ("sp"); | |
7590 | ||
7591 | cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT); | |
7592 | cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT); | |
7593 | } |