Commit | Line | Data |
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252b5132 | 1 | /* tc-m68k.c -- Assemble for the m68k family |
f7e42eb4 | 2 | Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3e602632 | 3 | 2000, 2001, 2002, 2003 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 | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
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 | ||
252b5132 RH |
36 | /* This string holds the chars that always start a comment. If the |
37 | pre-processor is disabled, these aren't very useful. The macro | |
38 | tc_comment_chars points to this. We use this, rather than the | |
39 | usual comment_chars, so that the --bitwise-or option will work. */ | |
40 | #if defined (TE_SVR4) || defined (TE_DELTA) | |
41 | const char *m68k_comment_chars = "|#"; | |
42 | #else | |
43 | const char *m68k_comment_chars = "|"; | |
44 | #endif | |
45 | ||
46 | /* This array holds the chars that only start a comment at the beginning of | |
47 | a line. If the line seems to have the form '# 123 filename' | |
48 | .line and .file directives will appear in the pre-processed output */ | |
49 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
50 | first line of the input file. This is because the compiler outputs | |
92774660 KH |
51 | #NO_APP at the beginning of its output. */ |
52 | /* Also note that comments like this one will always work. */ | |
252b5132 RH |
53 | const char line_comment_chars[] = "#*"; |
54 | ||
63a0b638 | 55 | const char line_separator_chars[] = ";"; |
252b5132 | 56 | |
36759679 | 57 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 58 | const char EXP_CHARS[] = "eE"; |
252b5132 RH |
59 | |
60 | /* Chars that mean this number is a floating point constant, as | |
61 | in "0f12.456" or "0d1.2345e12". */ | |
62 | ||
5a38dc70 | 63 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
252b5132 RH |
64 | |
65 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
66 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
67 | but nothing is ideal around here. */ | |
68 | ||
36759679 | 69 | const int md_reloc_size = 8; /* Size of relocation record. */ |
252b5132 RH |
70 | |
71 | /* Are we trying to generate PIC code? If so, absolute references | |
72 | ought to be made into linkage table references or pc-relative | |
92774660 | 73 | references. Not implemented. For ELF there are other means |
252b5132 RH |
74 | to denote pic relocations. */ |
75 | int flag_want_pic; | |
76 | ||
36759679 NC |
77 | static int flag_short_refs; /* -l option. */ |
78 | static int flag_long_jumps; /* -S option. */ | |
28e7409f | 79 | static int flag_keep_pcrel; /* --pcrel option. */ |
252b5132 RH |
80 | |
81 | #ifdef REGISTER_PREFIX_OPTIONAL | |
82 | int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
83 | #else | |
84 | int flag_reg_prefix_optional; | |
85 | #endif | |
86 | ||
87 | /* Whether --register-prefix-optional was used on the command line. */ | |
88 | static int reg_prefix_optional_seen; | |
89 | ||
90 | /* The floating point coprocessor to use by default. */ | |
91 | static enum m68k_register m68k_float_copnum = COP1; | |
92 | ||
93 | /* If this is non-zero, then references to number(%pc) will be taken | |
94 | to refer to number, rather than to %pc + number. */ | |
95 | static int m68k_abspcadd; | |
96 | ||
97 | /* If this is non-zero, then the quick forms of the move, add, and sub | |
98 | instructions are used when possible. */ | |
99 | static int m68k_quick = 1; | |
100 | ||
101 | /* If this is non-zero, then if the size is not specified for a base | |
102 | or outer displacement, the assembler assumes that the size should | |
103 | be 32 bits. */ | |
104 | static int m68k_rel32 = 1; | |
105 | ||
106 | /* This is non-zero if m68k_rel32 was set from the command line. */ | |
107 | static int m68k_rel32_from_cmdline; | |
108 | ||
109 | /* The default width to use for an index register when using a base | |
110 | displacement. */ | |
111 | static enum m68k_size m68k_index_width_default = SIZE_LONG; | |
112 | ||
113 | /* We want to warn if any text labels are misaligned. In order to get | |
114 | the right line number, we need to record the line number for each | |
115 | label. */ | |
252b5132 RH |
116 | struct label_line |
117 | { | |
118 | struct label_line *next; | |
119 | symbolS *label; | |
120 | char *file; | |
121 | unsigned int line; | |
122 | int text; | |
123 | }; | |
124 | ||
125 | /* The list of labels. */ | |
126 | ||
127 | static struct label_line *labels; | |
128 | ||
129 | /* The current label. */ | |
130 | ||
131 | static struct label_line *current_label; | |
132 | ||
36759679 NC |
133 | /* Its an arbitrary name: This means I don't approve of it. |
134 | See flames below. */ | |
252b5132 RH |
135 | static struct obstack robyn; |
136 | ||
252b5132 RH |
137 | struct m68k_incant |
138 | { | |
139 | const char *m_operands; | |
140 | unsigned long m_opcode; | |
141 | short m_opnum; | |
142 | short m_codenum; | |
143 | int m_arch; | |
144 | struct m68k_incant *m_next; | |
145 | }; | |
146 | ||
147 | #define getone(x) ((((x)->m_opcode)>>16)&0xffff) | |
148 | #define gettwo(x) (((x)->m_opcode)&0xffff) | |
149 | ||
150 | static const enum m68k_register m68000_control_regs[] = { 0 }; | |
151 | static const enum m68k_register m68010_control_regs[] = { | |
152 | SFC, DFC, USP, VBR, | |
153 | 0 | |
154 | }; | |
155 | static const enum m68k_register m68020_control_regs[] = { | |
156 | SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP, | |
157 | 0 | |
158 | }; | |
159 | static const enum m68k_register m68040_control_regs[] = { | |
160 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, | |
161 | USP, VBR, MSP, ISP, MMUSR, URP, SRP, | |
162 | 0 | |
163 | }; | |
164 | static const enum m68k_register m68060_control_regs[] = { | |
165 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, | |
166 | USP, VBR, URP, SRP, PCR, | |
167 | 0 | |
168 | }; | |
6da466c7 | 169 | static const enum m68k_register mcf_control_regs[] = { |
3e602632 | 170 | CACR, TC, ACR0, ACR1, ACR2, ACR3, VBR, ROMBAR, |
252b5132 RH |
171 | RAMBAR0, RAMBAR1, MBAR, |
172 | 0 | |
173 | }; | |
3e602632 NC |
174 | static const enum m68k_register mcf528x_control_regs[] = { |
175 | CACR, ACR0, ACR1, VBR, FLASHBAR, RAMBAR, | |
176 | 0 | |
177 | }; | |
178 | static const enum m68k_register mcfv4e_control_regs[] = { | |
179 | CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, VBR, PC, ROMBAR, | |
180 | ROMBAR1, RAMBAR0, RAMBAR1, MPCR, EDRAMBAR, SECMBAR, MBAR, MBAR0, MBAR1, | |
181 | PCR1U0, PCR1L0, PCR1U1, PCR1L1, PCR2U0, PCR2L0, PCR2U1, PCR2L1, | |
182 | PCR3U0, PCR3L0, PCR3U1, PCR3L1, | |
183 | 0 | |
184 | }; | |
252b5132 RH |
185 | #define cpu32_control_regs m68010_control_regs |
186 | ||
187 | static const enum m68k_register *control_regs; | |
188 | ||
36759679 | 189 | /* Internal form of a 68020 instruction. */ |
252b5132 RH |
190 | struct m68k_it |
191 | { | |
192 | const char *error; | |
36759679 | 193 | const char *args; /* List of opcode info. */ |
252b5132 RH |
194 | int numargs; |
195 | ||
36759679 | 196 | int numo; /* Number of shorts in opcode. */ |
252b5132 RH |
197 | short opcode[11]; |
198 | ||
199 | struct m68k_op operands[6]; | |
200 | ||
36759679 | 201 | int nexp; /* Number of exprs in use. */ |
252b5132 RH |
202 | struct m68k_exp exprs[4]; |
203 | ||
36759679 | 204 | int nfrag; /* Number of frags we have to produce. */ |
252b5132 RH |
205 | struct |
206 | { | |
36759679 | 207 | int fragoff; /* Where in the current opcode the frag ends. */ |
252b5132 RH |
208 | symbolS *fadd; |
209 | offsetT foff; | |
210 | int fragty; | |
211 | } | |
212 | fragb[4]; | |
213 | ||
36759679 | 214 | int nrel; /* Num of reloc strucs in use. */ |
252b5132 RH |
215 | struct |
216 | { | |
217 | int n; | |
218 | expressionS exp; | |
219 | char wid; | |
220 | char pcrel; | |
221 | /* In a pc relative address the difference between the address | |
222 | of the offset and the address that the offset is relative | |
223 | to. This depends on the addressing mode. Basically this | |
224 | is the value to put in the offset field to address the | |
225 | first byte of the offset, without regarding the special | |
226 | significance of some values (in the branch instruction, for | |
227 | example). */ | |
228 | int pcrel_fix; | |
229 | #ifdef OBJ_ELF | |
230 | /* Whether this expression needs special pic relocation, and if | |
231 | so, which. */ | |
232 | enum pic_relocation pic_reloc; | |
233 | #endif | |
234 | } | |
36759679 | 235 | reloc[5]; /* Five is enough??? */ |
252b5132 RH |
236 | }; |
237 | ||
3e602632 | 238 | #define cpu_of_arch(x) ((x) & (m68000up | mcf)) |
252b5132 RH |
239 | #define float_of_arch(x) ((x) & mfloat) |
240 | #define mmu_of_arch(x) ((x) & mmmu) | |
3e602632 NC |
241 | #define arch_coldfire_p(x) ((x) & mcf) |
242 | #define arch_coldfire_v4e_p(x) ((x) & mcfv4e) | |
252b5132 | 243 | |
36759679 | 244 | /* Macros for determining if cpu supports a specific addressing mode. */ |
3e602632 | 245 | #define HAVE_LONG_BRANCH(x) ((x) & (m68020|m68030|m68040|m68060|cpu32|mcf5407|mcfv4e)) |
252b5132 | 246 | |
36759679 | 247 | static struct m68k_it the_ins; /* The instruction being assembled. */ |
252b5132 RH |
248 | |
249 | #define op(ex) ((ex)->exp.X_op) | |
250 | #define adds(ex) ((ex)->exp.X_add_symbol) | |
251 | #define subs(ex) ((ex)->exp.X_op_symbol) | |
252 | #define offs(ex) ((ex)->exp.X_add_number) | |
253 | ||
36759679 | 254 | /* Macros for adding things to the m68k_it struct. */ |
252b5132 RH |
255 | #define addword(w) the_ins.opcode[the_ins.numo++]=(w) |
256 | ||
257 | /* Static functions. */ | |
252b5132 RH |
258 | static void insop PARAMS ((int, const struct m68k_incant *)); |
259 | static void add_fix PARAMS ((int, struct m68k_exp *, int, int)); | |
260 | static void add_frag PARAMS ((symbolS *, offsetT, int)); | |
261 | ||
36759679 NC |
262 | /* Like addword, but goes BEFORE general operands. */ |
263 | ||
252b5132 RH |
264 | static void |
265 | insop (w, opcode) | |
266 | int w; | |
267 | const struct m68k_incant *opcode; | |
268 | { | |
269 | int z; | |
07726851 | 270 | for (z = the_ins.numo; z > opcode->m_codenum; --z) |
8a104df9 KH |
271 | the_ins.opcode[z] = the_ins.opcode[z - 1]; |
272 | for (z = 0; z < the_ins.nrel; z++) | |
273 | the_ins.reloc[z].n += 2; | |
252b5132 RH |
274 | for (z = 0; z < the_ins.nfrag; z++) |
275 | the_ins.fragb[z].fragoff++; | |
8a104df9 | 276 | the_ins.opcode[opcode->m_codenum] = w; |
252b5132 RH |
277 | the_ins.numo++; |
278 | } | |
279 | ||
280 | /* The numo+1 kludge is so we can hit the low order byte of the prev word. | |
281 | Blecch. */ | |
282 | static void | |
283 | add_fix (width, exp, pc_rel, pc_fix) | |
284 | int width; | |
285 | struct m68k_exp *exp; | |
286 | int pc_rel; | |
287 | int pc_fix; | |
288 | { | |
289 | the_ins.reloc[the_ins.nrel].n = ((width == 'B' || width == '3') | |
290 | ? (the_ins.numo*2-1) | |
291 | : (((width)=='b') | |
292 | ? (the_ins.numo*2+1) | |
293 | : (the_ins.numo*2))); | |
294 | the_ins.reloc[the_ins.nrel].exp = exp->exp; | |
295 | the_ins.reloc[the_ins.nrel].wid = width; | |
296 | the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix; | |
297 | #ifdef OBJ_ELF | |
298 | the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc; | |
299 | #endif | |
300 | the_ins.reloc[the_ins.nrel++].pcrel = pc_rel; | |
301 | } | |
302 | ||
303 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
304 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
305 | is the subtype of the frag to be generated; its primary type is | |
306 | rs_machine_dependent. | |
307 | ||
308 | The TYPE parameter is also used by md_convert_frag_1 and | |
309 | md_estimate_size_before_relax. The appropriate type of fixup will | |
310 | be emitted by md_convert_frag_1. | |
311 | ||
312 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
313 | static void | |
314 | add_frag (add, off, type) | |
315 | symbolS *add; | |
316 | offsetT off; | |
317 | int type; | |
318 | { | |
8a104df9 KH |
319 | the_ins.fragb[the_ins.nfrag].fragoff = the_ins.numo; |
320 | the_ins.fragb[the_ins.nfrag].fadd = add; | |
321 | the_ins.fragb[the_ins.nfrag].foff = off; | |
322 | the_ins.fragb[the_ins.nfrag++].fragty = type; | |
252b5132 RH |
323 | } |
324 | ||
325 | #define isvar(ex) \ | |
326 | (op (ex) != O_constant && op (ex) != O_big) | |
327 | ||
328 | static char *crack_operand PARAMS ((char *str, struct m68k_op *opP)); | |
329 | static int get_num PARAMS ((struct m68k_exp *exp, int ok)); | |
330 | static void m68k_ip PARAMS ((char *)); | |
331 | static void insert_reg PARAMS ((const char *, int)); | |
332 | static void select_control_regs PARAMS ((void)); | |
333 | static void init_regtable PARAMS ((void)); | |
334 | static int reverse_16_bits PARAMS ((int in)); | |
335 | static int reverse_8_bits PARAMS ((int in)); | |
336 | static void install_gen_operand PARAMS ((int mode, int val)); | |
337 | static void install_operand PARAMS ((int mode, int val)); | |
338 | static void s_bss PARAMS ((int)); | |
339 | static void s_data1 PARAMS ((int)); | |
340 | static void s_data2 PARAMS ((int)); | |
341 | static void s_even PARAMS ((int)); | |
342 | static void s_proc PARAMS ((int)); | |
343 | static void mri_chip PARAMS ((void)); | |
344 | static void s_chip PARAMS ((int)); | |
345 | static void s_fopt PARAMS ((int)); | |
346 | static void s_opt PARAMS ((int)); | |
347 | static void s_reg PARAMS ((int)); | |
348 | static void s_restore PARAMS ((int)); | |
349 | static void s_save PARAMS ((int)); | |
350 | static void s_mri_if PARAMS ((int)); | |
351 | static void s_mri_else PARAMS ((int)); | |
352 | static void s_mri_endi PARAMS ((int)); | |
353 | static void s_mri_break PARAMS ((int)); | |
354 | static void s_mri_next PARAMS ((int)); | |
355 | static void s_mri_for PARAMS ((int)); | |
356 | static void s_mri_endf PARAMS ((int)); | |
357 | static void s_mri_repeat PARAMS ((int)); | |
358 | static void s_mri_until PARAMS ((int)); | |
359 | static void s_mri_while PARAMS ((int)); | |
360 | static void s_mri_endw PARAMS ((int)); | |
252b5132 RH |
361 | static void md_convert_frag_1 PARAMS ((fragS *)); |
362 | ||
363 | static int current_architecture; | |
364 | ||
dc84e067 NC |
365 | struct m68k_cpu |
366 | { | |
367 | unsigned long arch; | |
368 | const char *name; | |
369 | int alias; | |
370 | }; | |
252b5132 | 371 | |
dc84e067 NC |
372 | static const struct m68k_cpu archs[] = |
373 | { | |
3e602632 NC |
374 | { m68000, "68000", 0 }, |
375 | { m68010, "68010", 0 }, | |
376 | { m68020, "68020", 0 }, | |
377 | { m68030, "68030", 0 }, | |
378 | { m68040, "68040", 0 }, | |
379 | { m68060, "68060", 0 }, | |
380 | { cpu32, "cpu32", 0 }, | |
381 | { m68881, "68881", 0 }, | |
382 | { m68851, "68851", 0 }, | |
383 | { mcf5200, "5200", 0 }, | |
384 | { mcf5206e,"5206e", 0 }, | |
385 | { mcf528x, "528x", 0 }, | |
386 | { mcf5307, "5307", 0 }, | |
387 | { mcf5407, "5407", 0 }, | |
388 | { mcfv4e, "cfv4e", 0 }, | |
dc84e067 NC |
389 | /* Aliases (effectively, so far as gas is concerned) for the above |
390 | cpus. */ | |
391 | { m68020, "68k", 1 }, | |
392 | { m68000, "68008", 1 }, | |
393 | { m68000, "68302", 1 }, | |
394 | { m68000, "68306", 1 }, | |
395 | { m68000, "68307", 1 }, | |
396 | { m68000, "68322", 1 }, | |
397 | { m68000, "68356", 1 }, | |
398 | { m68000, "68ec000", 1 }, | |
399 | { m68000, "68hc000", 1 }, | |
400 | { m68000, "68hc001", 1 }, | |
401 | { m68020, "68ec020", 1 }, | |
402 | { m68030, "68ec030", 1 }, | |
403 | { m68040, "68ec040", 1 }, | |
404 | { m68060, "68ec060", 1 }, | |
405 | { cpu32, "68330", 1 }, | |
406 | { cpu32, "68331", 1 }, | |
407 | { cpu32, "68332", 1 }, | |
408 | { cpu32, "68333", 1 }, | |
409 | { cpu32, "68334", 1 }, | |
410 | { cpu32, "68336", 1 }, | |
411 | { cpu32, "68340", 1 }, | |
412 | { cpu32, "68341", 1 }, | |
413 | { cpu32, "68349", 1 }, | |
414 | { cpu32, "68360", 1 }, | |
415 | { m68881, "68882", 1 }, | |
416 | { mcf5200, "5202", 1 }, | |
417 | { mcf5200, "5204", 1 }, | |
418 | { mcf5200, "5206", 1 }, | |
3e602632 | 419 | { mcf5407, "cfv4", 1 }, |
dc84e067 | 420 | }; |
252b5132 RH |
421 | |
422 | static const int n_archs = sizeof (archs) / sizeof (archs[0]); | |
423 | ||
151337e8 NC |
424 | /* This is the assembler relaxation table for m68k. m68k is a rich CISC |
425 | architecture and we have a lot of relaxation modes. */ | |
252b5132 | 426 | |
151337e8 NC |
427 | /* Macros used in the relaxation code. */ |
428 | #define TAB(x,y) (((x) << 2) + (y)) | |
429 | #define TABTYPE(x) ((x) >> 2) | |
430 | ||
431 | /* Relaxation states. */ | |
432 | #define BYTE 0 | |
433 | #define SHORT 1 | |
434 | #define LONG 2 | |
435 | #define SZ_UNDEF 3 | |
436 | ||
437 | /* Here are all the relaxation modes we support. First we can relax ordinary | |
438 | branches. On 68020 and higher and on CPU32 all branch instructions take | |
439 | three forms, so on these CPUs all branches always remain as such. When we | |
440 | have to expand to the LONG form on a 68000, though, we substitute an | |
441 | absolute jump instead. This is a direct replacement for unconditional | |
442 | branches and a branch over a jump for conditional branches. However, if the | |
443 | user requires PIC and disables this with --pcrel, we can only relax between | |
444 | BYTE and SHORT forms, punting if that isn't enough. This gives us four | |
445 | different relaxation modes for branches: */ | |
446 | ||
36759679 NC |
447 | #define BRANCHBWL 0 /* Branch byte, word, or long. */ |
448 | #define BRABSJUNC 1 /* Absolute jump for LONG, unconditional. */ | |
449 | #define BRABSJCOND 2 /* Absolute jump for LONG, conditional. */ | |
450 | #define BRANCHBW 3 /* Branch byte or word. */ | |
151337e8 NC |
451 | |
452 | /* We also relax coprocessor branches and DBcc's. All CPUs that support | |
453 | coprocessor branches support them in word and long forms, so we have only | |
454 | one relaxation mode for them. DBcc's are word only on all CPUs. We can | |
455 | relax them to the LONG form with a branch-around sequence. This sequence | |
456 | can use a long branch (if available) or an absolute jump (if acceptable). | |
457 | This gives us two relaxation modes. If long branches are not available and | |
458 | absolute jumps are not acceptable, we don't relax DBcc's. */ | |
459 | ||
36759679 NC |
460 | #define FBRANCH 4 /* Coprocessor branch. */ |
461 | #define DBCCLBR 5 /* DBcc relaxable with a long branch. */ | |
462 | #define DBCCABSJ 6 /* DBcc relaxable with an absolute jump. */ | |
151337e8 NC |
463 | |
464 | /* That's all for instruction relaxation. However, we also relax PC-relative | |
465 | operands. Specifically, we have three operand relaxation modes. On the | |
466 | 68000 PC-relative operands can only be 16-bit, but on 68020 and higher and | |
467 | on CPU32 they may be 16-bit or 32-bit. For the latter we relax between the | |
468 | two. Also PC+displacement+index operands in their simple form (with a non- | |
469 | suppressed index without memory indirection) are supported on all CPUs, but | |
470 | on the 68000 the displacement can be 8-bit only, whereas on 68020 and higher | |
471 | and on CPU32 we relax it to SHORT and LONG forms as well using the extended | |
472 | form of the PC+displacement+index operand. Finally, some absolute operands | |
473 | can be relaxed down to 16-bit PC-relative. */ | |
474 | ||
36759679 NC |
475 | #define PCREL1632 7 /* 16-bit or 32-bit PC-relative. */ |
476 | #define PCINDEX 8 /* PC + displacement + index. */ | |
477 | #define ABSTOPCREL 9 /* Absolute relax down to 16-bit PC-relative. */ | |
252b5132 RH |
478 | |
479 | /* Note that calls to frag_var need to specify the maximum expansion | |
480 | needed; this is currently 10 bytes for DBCC. */ | |
481 | ||
482 | /* The fields are: | |
483 | How far Forward this mode will reach: | |
484 | How far Backward this mode will reach: | |
485 | How many bytes this mode will add to the size of the frag | |
486 | Which mode to go to if the offset won't fit in this one | |
d7861ad2 AM |
487 | |
488 | Please check tc-m68k.h:md_prepare_relax_scan if changing this table. */ | |
252b5132 RH |
489 | relax_typeS md_relax_table[] = |
490 | { | |
ac62c346 AM |
491 | { 127, -128, 0, TAB (BRANCHBWL, SHORT) }, |
492 | { 32767, -32768, 2, TAB (BRANCHBWL, LONG) }, | |
493 | { 0, 0, 4, 0 }, | |
494 | { 1, 1, 0, 0 }, | |
495 | ||
496 | { 127, -128, 0, TAB (BRABSJUNC, SHORT) }, | |
497 | { 32767, -32768, 2, TAB (BRABSJUNC, LONG) }, | |
498 | { 0, 0, 4, 0 }, | |
499 | { 1, 1, 0, 0 }, | |
500 | ||
501 | { 127, -128, 0, TAB (BRABSJCOND, SHORT) }, | |
502 | { 32767, -32768, 2, TAB (BRABSJCOND, LONG) }, | |
503 | { 0, 0, 6, 0 }, | |
504 | { 1, 1, 0, 0 }, | |
505 | ||
506 | { 127, -128, 0, TAB (BRANCHBW, SHORT) }, | |
507 | { 0, 0, 2, 0 }, | |
508 | { 1, 1, 0, 0 }, | |
509 | { 1, 1, 0, 0 }, | |
510 | ||
36759679 | 511 | { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE. */ |
ac62c346 AM |
512 | { 32767, -32768, 2, TAB (FBRANCH, LONG) }, |
513 | { 0, 0, 4, 0 }, | |
514 | { 1, 1, 0, 0 }, | |
515 | ||
36759679 | 516 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
517 | { 32767, -32768, 2, TAB (DBCCLBR, LONG) }, |
518 | { 0, 0, 10, 0 }, | |
519 | { 1, 1, 0, 0 }, | |
520 | ||
36759679 | 521 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
522 | { 32767, -32768, 2, TAB (DBCCABSJ, LONG) }, |
523 | { 0, 0, 10, 0 }, | |
524 | { 1, 1, 0, 0 }, | |
525 | ||
36759679 | 526 | { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE. */ |
ac62c346 AM |
527 | { 32767, -32768, 2, TAB (PCREL1632, LONG) }, |
528 | { 0, 0, 6, 0 }, | |
529 | { 1, 1, 0, 0 }, | |
530 | ||
531 | { 125, -130, 0, TAB (PCINDEX, SHORT) }, | |
532 | { 32765, -32770, 2, TAB (PCINDEX, LONG) }, | |
533 | { 0, 0, 4, 0 }, | |
534 | { 1, 1, 0, 0 }, | |
535 | ||
36759679 | 536 | { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE. */ |
ac62c346 AM |
537 | { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) }, |
538 | { 0, 0, 4, 0 }, | |
539 | { 1, 1, 0, 0 }, | |
252b5132 RH |
540 | }; |
541 | ||
542 | /* These are the machine dependent pseudo-ops. These are included so | |
543 | the assembler can work on the output from the SUN C compiler, which | |
36759679 | 544 | generates these. */ |
252b5132 RH |
545 | |
546 | /* This table describes all the machine specific pseudo-ops the assembler | |
547 | has to support. The fields are: | |
548 | pseudo-op name without dot | |
549 | function to call to execute this pseudo-op | |
36759679 | 550 | Integer arg to pass to the function. */ |
252b5132 RH |
551 | const pseudo_typeS md_pseudo_table[] = |
552 | { | |
553 | {"data1", s_data1, 0}, | |
554 | {"data2", s_data2, 0}, | |
555 | {"bss", s_bss, 0}, | |
556 | {"even", s_even, 0}, | |
557 | {"skip", s_space, 0}, | |
558 | {"proc", s_proc, 0}, | |
559 | #if defined (TE_SUN3) || defined (OBJ_ELF) | |
560 | {"align", s_align_bytes, 0}, | |
561 | #endif | |
562 | #ifdef OBJ_ELF | |
563 | {"swbeg", s_ignore, 0}, | |
564 | #endif | |
565 | {"extend", float_cons, 'x'}, | |
566 | {"ldouble", float_cons, 'x'}, | |
567 | ||
568 | /* The following pseudo-ops are supported for MRI compatibility. */ | |
569 | {"chip", s_chip, 0}, | |
570 | {"comline", s_space, 1}, | |
571 | {"fopt", s_fopt, 0}, | |
572 | {"mask2", s_ignore, 0}, | |
573 | {"opt", s_opt, 0}, | |
574 | {"reg", s_reg, 0}, | |
575 | {"restore", s_restore, 0}, | |
576 | {"save", s_save, 0}, | |
577 | ||
578 | {"if", s_mri_if, 0}, | |
579 | {"if.b", s_mri_if, 'b'}, | |
580 | {"if.w", s_mri_if, 'w'}, | |
581 | {"if.l", s_mri_if, 'l'}, | |
582 | {"else", s_mri_else, 0}, | |
583 | {"else.s", s_mri_else, 's'}, | |
584 | {"else.l", s_mri_else, 'l'}, | |
585 | {"endi", s_mri_endi, 0}, | |
586 | {"break", s_mri_break, 0}, | |
587 | {"break.s", s_mri_break, 's'}, | |
588 | {"break.l", s_mri_break, 'l'}, | |
589 | {"next", s_mri_next, 0}, | |
590 | {"next.s", s_mri_next, 's'}, | |
591 | {"next.l", s_mri_next, 'l'}, | |
592 | {"for", s_mri_for, 0}, | |
593 | {"for.b", s_mri_for, 'b'}, | |
594 | {"for.w", s_mri_for, 'w'}, | |
595 | {"for.l", s_mri_for, 'l'}, | |
596 | {"endf", s_mri_endf, 0}, | |
597 | {"repeat", s_mri_repeat, 0}, | |
598 | {"until", s_mri_until, 0}, | |
599 | {"until.b", s_mri_until, 'b'}, | |
600 | {"until.w", s_mri_until, 'w'}, | |
601 | {"until.l", s_mri_until, 'l'}, | |
602 | {"while", s_mri_while, 0}, | |
603 | {"while.b", s_mri_while, 'b'}, | |
604 | {"while.w", s_mri_while, 'w'}, | |
605 | {"while.l", s_mri_while, 'l'}, | |
606 | {"endw", s_mri_endw, 0}, | |
607 | ||
608 | {0, 0, 0} | |
609 | }; | |
610 | ||
252b5132 RH |
611 | /* The mote pseudo ops are put into the opcode table, since they |
612 | don't start with a . they look like opcodes to gas. | |
613 | */ | |
614 | ||
615 | #ifdef M68KCOFF | |
616 | extern void obj_coff_section PARAMS ((int)); | |
617 | #endif | |
618 | ||
5a38dc70 | 619 | const pseudo_typeS mote_pseudo_table[] = |
252b5132 RH |
620 | { |
621 | ||
622 | {"dcl", cons, 4}, | |
623 | {"dc", cons, 2}, | |
624 | {"dcw", cons, 2}, | |
625 | {"dcb", cons, 1}, | |
626 | ||
627 | {"dsl", s_space, 4}, | |
628 | {"ds", s_space, 2}, | |
629 | {"dsw", s_space, 2}, | |
630 | {"dsb", s_space, 1}, | |
631 | ||
632 | {"xdef", s_globl, 0}, | |
633 | #ifdef OBJ_ELF | |
634 | {"align", s_align_bytes, 0}, | |
635 | #else | |
636 | {"align", s_align_ptwo, 0}, | |
637 | #endif | |
638 | #ifdef M68KCOFF | |
639 | {"sect", obj_coff_section, 0}, | |
640 | {"section", obj_coff_section, 0}, | |
641 | #endif | |
642 | {0, 0, 0} | |
643 | }; | |
644 | ||
645 | #define issbyte(x) ((x)>=-128 && (x)<=127) | |
646 | #define isubyte(x) ((x)>=0 && (x)<=255) | |
647 | #define issword(x) ((x)>=-32768 && (x)<=32767) | |
648 | #define isuword(x) ((x)>=0 && (x)<=65535) | |
649 | ||
650 | #define isbyte(x) ((x)>= -255 && (x)<=255) | |
651 | #define isword(x) ((x)>=-65536 && (x)<=65535) | |
652 | #define islong(x) (1) | |
653 | ||
654 | extern char *input_line_pointer; | |
655 | ||
252b5132 RH |
656 | static char notend_table[256]; |
657 | static char alt_notend_table[256]; | |
658 | #define notend(s) \ | |
659 | (! (notend_table[(unsigned char) *s] \ | |
660 | || (*s == ':' \ | |
661 | && alt_notend_table[(unsigned char) s[1]]))) | |
662 | ||
663 | #if defined (M68KCOFF) && !defined (BFD_ASSEMBLER) | |
664 | ||
665 | #ifdef NO_PCREL_RELOCS | |
666 | ||
667 | int | |
668 | make_pcrel_absolute(fixP, add_number) | |
669 | fixS *fixP; | |
670 | long *add_number; | |
671 | { | |
672 | register unsigned char *opcode = fixP->fx_frag->fr_opcode; | |
673 | ||
36759679 | 674 | /* Rewrite the PC relative instructions to absolute address ones. |
67c1ffbe | 675 | these are rumored to be faster, and the apollo linker refuses |
36759679 NC |
676 | to deal with the PC relative relocations. */ |
677 | if (opcode[0] == 0x60 && opcode[1] == 0xff) /* BRA -> JMP. */ | |
252b5132 | 678 | { |
36759679 NC |
679 | if (flag_keep_pcrel) |
680 | as_fatal(_("Tried to convert PC relative branch to absolute jump")); | |
252b5132 RH |
681 | opcode[0] = 0x4e; |
682 | opcode[1] = 0xf9; | |
683 | } | |
36759679 | 684 | else if (opcode[0] == 0x61 && opcode[1] == 0xff) /* BSR -> JSR. */ |
252b5132 | 685 | { |
36759679 NC |
686 | if (flag_keep_pcrel) |
687 | as_fatal(_("Tried to convert PC relative BSR to absolute JSR")); | |
252b5132 RH |
688 | opcode[0] = 0x4e; |
689 | opcode[1] = 0xb9; | |
690 | } | |
691 | else | |
692 | as_fatal (_("Unknown PC relative instruction")); | |
693 | *add_number -= 4; | |
694 | return 0; | |
695 | } | |
696 | ||
697 | #endif /* NO_PCREL_RELOCS */ | |
698 | ||
699 | short | |
700 | tc_coff_fix2rtype (fixP) | |
701 | fixS *fixP; | |
702 | { | |
703 | if (fixP->fx_tcbit && fixP->fx_size == 4) | |
704 | return R_RELLONG_NEG; | |
705 | #ifdef NO_PCREL_RELOCS | |
706 | know (fixP->fx_pcrel == 0); | |
707 | return (fixP->fx_size == 1 ? R_RELBYTE | |
708 | : fixP->fx_size == 2 ? R_DIR16 | |
709 | : R_DIR32); | |
710 | #else | |
711 | return (fixP->fx_pcrel ? | |
712 | (fixP->fx_size == 1 ? R_PCRBYTE : | |
713 | fixP->fx_size == 2 ? R_PCRWORD : | |
714 | R_PCRLONG) : | |
715 | (fixP->fx_size == 1 ? R_RELBYTE : | |
716 | fixP->fx_size == 2 ? R_RELWORD : | |
717 | R_RELLONG)); | |
718 | #endif | |
719 | } | |
720 | ||
721 | #endif | |
722 | ||
723 | #ifdef OBJ_ELF | |
724 | ||
c801568a AM |
725 | /* Return zero if the reference to SYMBOL from within the same segment may |
726 | be relaxed. */ | |
727 | ||
728 | /* On an ELF system, we can't relax an externally visible symbol, | |
729 | because it may be overridden by a shared library. However, if | |
730 | TARGET_OS is "elf", then we presume that we are assembling for an | |
731 | embedded system, in which case we don't have to worry about shared | |
732 | libraries, and we can relax any external sym. */ | |
733 | ||
734 | #define relaxable_symbol(symbol) \ | |
735 | (!((S_IS_EXTERNAL (symbol) && strcmp (TARGET_OS, "elf") != 0) \ | |
736 | || S_IS_WEAK (symbol))) | |
737 | ||
252b5132 RH |
738 | /* Compute the relocation code for a fixup of SIZE bytes, using pc |
739 | relative relocation if PCREL is non-zero. PIC says whether a special | |
740 | pic relocation was requested. */ | |
741 | ||
742 | static bfd_reloc_code_real_type get_reloc_code | |
743 | PARAMS ((int, int, enum pic_relocation)); | |
744 | ||
745 | static bfd_reloc_code_real_type | |
746 | get_reloc_code (size, pcrel, pic) | |
747 | int size; | |
748 | int pcrel; | |
749 | enum pic_relocation pic; | |
750 | { | |
751 | switch (pic) | |
752 | { | |
753 | case pic_got_pcrel: | |
754 | switch (size) | |
755 | { | |
756 | case 1: | |
757 | return BFD_RELOC_8_GOT_PCREL; | |
758 | case 2: | |
759 | return BFD_RELOC_16_GOT_PCREL; | |
760 | case 4: | |
761 | return BFD_RELOC_32_GOT_PCREL; | |
762 | } | |
763 | break; | |
764 | ||
765 | case pic_got_off: | |
766 | switch (size) | |
767 | { | |
768 | case 1: | |
769 | return BFD_RELOC_8_GOTOFF; | |
770 | case 2: | |
771 | return BFD_RELOC_16_GOTOFF; | |
772 | case 4: | |
773 | return BFD_RELOC_32_GOTOFF; | |
774 | } | |
775 | break; | |
776 | ||
777 | case pic_plt_pcrel: | |
778 | switch (size) | |
779 | { | |
780 | case 1: | |
781 | return BFD_RELOC_8_PLT_PCREL; | |
782 | case 2: | |
783 | return BFD_RELOC_16_PLT_PCREL; | |
784 | case 4: | |
785 | return BFD_RELOC_32_PLT_PCREL; | |
786 | } | |
787 | break; | |
788 | ||
789 | case pic_plt_off: | |
790 | switch (size) | |
791 | { | |
792 | case 1: | |
793 | return BFD_RELOC_8_PLTOFF; | |
794 | case 2: | |
795 | return BFD_RELOC_16_PLTOFF; | |
796 | case 4: | |
797 | return BFD_RELOC_32_PLTOFF; | |
798 | } | |
799 | break; | |
800 | ||
801 | case pic_none: | |
802 | if (pcrel) | |
803 | { | |
804 | switch (size) | |
805 | { | |
806 | case 1: | |
807 | return BFD_RELOC_8_PCREL; | |
808 | case 2: | |
809 | return BFD_RELOC_16_PCREL; | |
810 | case 4: | |
811 | return BFD_RELOC_32_PCREL; | |
812 | } | |
813 | } | |
814 | else | |
815 | { | |
816 | switch (size) | |
817 | { | |
818 | case 1: | |
819 | return BFD_RELOC_8; | |
820 | case 2: | |
821 | return BFD_RELOC_16; | |
822 | case 4: | |
823 | return BFD_RELOC_32; | |
824 | } | |
825 | } | |
826 | } | |
827 | ||
828 | if (pcrel) | |
829 | { | |
830 | if (pic == pic_none) | |
831 | as_bad (_("Can not do %d byte pc-relative relocation"), size); | |
832 | else | |
833 | as_bad (_("Can not do %d byte pc-relative pic relocation"), size); | |
834 | } | |
835 | else | |
836 | { | |
837 | if (pic == pic_none) | |
838 | as_bad (_("Can not do %d byte relocation"), size); | |
839 | else | |
840 | as_bad (_("Can not do %d byte pic relocation"), size); | |
841 | } | |
842 | ||
843 | return BFD_RELOC_NONE; | |
844 | } | |
845 | ||
846 | /* Here we decide which fixups can be adjusted to make them relative | |
847 | to the beginning of the section instead of the symbol. Basically | |
848 | we need to make sure that the dynamic relocations are done | |
849 | correctly, so in some cases we force the original symbol to be | |
850 | used. */ | |
851 | int | |
852 | tc_m68k_fix_adjustable (fixP) | |
853 | fixS *fixP; | |
854 | { | |
36759679 | 855 | /* Adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
856 | switch (fixP->fx_r_type) |
857 | { | |
858 | case BFD_RELOC_8_GOT_PCREL: | |
859 | case BFD_RELOC_16_GOT_PCREL: | |
860 | case BFD_RELOC_32_GOT_PCREL: | |
861 | case BFD_RELOC_8_GOTOFF: | |
862 | case BFD_RELOC_16_GOTOFF: | |
863 | case BFD_RELOC_32_GOTOFF: | |
864 | case BFD_RELOC_8_PLT_PCREL: | |
865 | case BFD_RELOC_16_PLT_PCREL: | |
866 | case BFD_RELOC_32_PLT_PCREL: | |
867 | case BFD_RELOC_8_PLTOFF: | |
868 | case BFD_RELOC_16_PLTOFF: | |
869 | case BFD_RELOC_32_PLTOFF: | |
870 | return 0; | |
871 | ||
872 | case BFD_RELOC_VTABLE_INHERIT: | |
873 | case BFD_RELOC_VTABLE_ENTRY: | |
874 | return 0; | |
875 | ||
876 | default: | |
877 | return 1; | |
878 | } | |
879 | } | |
880 | ||
881 | #else /* !OBJ_ELF */ | |
882 | ||
883 | #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC | |
884 | ||
c801568a AM |
885 | #define relaxable_symbol(symbol) 1 |
886 | ||
252b5132 RH |
887 | #endif /* OBJ_ELF */ |
888 | ||
889 | #ifdef BFD_ASSEMBLER | |
890 | ||
891 | arelent * | |
892 | tc_gen_reloc (section, fixp) | |
f1f5ef86 | 893 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
894 | fixS *fixp; |
895 | { | |
896 | arelent *reloc; | |
897 | bfd_reloc_code_real_type code; | |
898 | ||
8ec6253e NC |
899 | /* If the tcbit is set, then this was a fixup of a negative value |
900 | that was never resolved. We do not have a reloc to handle this, | |
901 | so just return. We assume that other code will have detected this | |
902 | situation and produced a helpful error message, so we just tell the | |
903 | user that the reloc cannot be produced. */ | |
252b5132 | 904 | if (fixp->fx_tcbit) |
8ec6253e NC |
905 | { |
906 | if (fixp->fx_addsy) | |
b091f402 AM |
907 | as_bad_where (fixp->fx_file, fixp->fx_line, |
908 | _("Unable to produce reloc against symbol '%s'"), | |
909 | S_GET_NAME (fixp->fx_addsy)); | |
8ec6253e NC |
910 | return NULL; |
911 | } | |
252b5132 RH |
912 | |
913 | if (fixp->fx_r_type != BFD_RELOC_NONE) | |
914 | { | |
915 | code = fixp->fx_r_type; | |
916 | ||
917 | /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible | |
918 | that fixup_segment converted a non-PC relative reloc into a | |
919 | PC relative reloc. In such a case, we need to convert the | |
920 | reloc code. */ | |
921 | if (fixp->fx_pcrel) | |
922 | { | |
923 | switch (code) | |
924 | { | |
925 | case BFD_RELOC_8: | |
926 | code = BFD_RELOC_8_PCREL; | |
927 | break; | |
928 | case BFD_RELOC_16: | |
929 | code = BFD_RELOC_16_PCREL; | |
930 | break; | |
931 | case BFD_RELOC_32: | |
932 | code = BFD_RELOC_32_PCREL; | |
933 | break; | |
934 | case BFD_RELOC_8_PCREL: | |
935 | case BFD_RELOC_16_PCREL: | |
936 | case BFD_RELOC_32_PCREL: | |
937 | case BFD_RELOC_8_GOT_PCREL: | |
938 | case BFD_RELOC_16_GOT_PCREL: | |
939 | case BFD_RELOC_32_GOT_PCREL: | |
940 | case BFD_RELOC_8_GOTOFF: | |
941 | case BFD_RELOC_16_GOTOFF: | |
942 | case BFD_RELOC_32_GOTOFF: | |
943 | case BFD_RELOC_8_PLT_PCREL: | |
944 | case BFD_RELOC_16_PLT_PCREL: | |
945 | case BFD_RELOC_32_PLT_PCREL: | |
946 | case BFD_RELOC_8_PLTOFF: | |
947 | case BFD_RELOC_16_PLTOFF: | |
948 | case BFD_RELOC_32_PLTOFF: | |
949 | break; | |
950 | default: | |
951 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
952 | _("Cannot make %s relocation PC relative"), | |
953 | bfd_get_reloc_code_name (code)); | |
954 | } | |
955 | } | |
956 | } | |
957 | else | |
958 | { | |
959 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
960 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
961 | { | |
962 | #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break | |
963 | MAP (1, 0, BFD_RELOC_8); | |
964 | MAP (2, 0, BFD_RELOC_16); | |
965 | MAP (4, 0, BFD_RELOC_32); | |
966 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
967 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
968 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
969 | default: | |
970 | abort (); | |
971 | } | |
972 | } | |
973 | #undef F | |
974 | #undef MAP | |
975 | ||
976 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
977 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
978 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
979 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
980 | #ifndef OBJ_ELF | |
981 | if (fixp->fx_pcrel) | |
982 | reloc->addend = fixp->fx_addnumber; | |
983 | else | |
984 | reloc->addend = 0; | |
985 | #else | |
986 | if (!fixp->fx_pcrel) | |
987 | reloc->addend = fixp->fx_addnumber; | |
988 | else | |
989 | reloc->addend = (section->vma | |
8390138c AS |
990 | /* Explicit sign extension in case char is |
991 | unsigned. */ | |
992 | + ((fixp->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80 | |
252b5132 RH |
993 | + fixp->fx_addnumber |
994 | + md_pcrel_from (fixp)); | |
995 | #endif | |
996 | ||
997 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
998 | assert (reloc->howto != 0); | |
999 | ||
1000 | return reloc; | |
1001 | } | |
1002 | ||
1003 | #endif /* BFD_ASSEMBLER */ | |
1004 | ||
252b5132 RH |
1005 | /* Handle of the OPCODE hash table. NULL means any use before |
1006 | m68k_ip_begin() will crash. */ | |
1007 | static struct hash_control *op_hash; | |
1008 | \f | |
1009 | /* Assemble an m68k instruction. */ | |
1010 | ||
1011 | static void | |
1012 | m68k_ip (instring) | |
1013 | char *instring; | |
1014 | { | |
1015 | register char *p; | |
1016 | register struct m68k_op *opP; | |
1017 | register const struct m68k_incant *opcode; | |
1018 | register const char *s; | |
1019 | register int tmpreg = 0, baseo = 0, outro = 0, nextword; | |
1020 | char *pdot, *pdotmove; | |
1021 | enum m68k_size siz1, siz2; | |
1022 | char c; | |
1023 | int losing; | |
1024 | int opsfound; | |
1025 | LITTLENUM_TYPE words[6]; | |
1026 | LITTLENUM_TYPE *wordp; | |
1027 | unsigned long ok_arch = 0; | |
1028 | ||
1029 | if (*instring == ' ') | |
36759679 | 1030 | instring++; /* Skip leading whitespace. */ |
252b5132 RH |
1031 | |
1032 | /* Scan up to end of operation-code, which MUST end in end-of-string | |
92774660 | 1033 | or exactly 1 space. */ |
252b5132 RH |
1034 | pdot = 0; |
1035 | for (p = instring; *p != '\0'; p++) | |
1036 | { | |
1037 | if (*p == ' ') | |
1038 | break; | |
1039 | if (*p == '.') | |
1040 | pdot = p; | |
1041 | } | |
1042 | ||
1043 | if (p == instring) | |
1044 | { | |
1045 | the_ins.error = _("No operator"); | |
1046 | return; | |
1047 | } | |
1048 | ||
1049 | /* p now points to the end of the opcode name, probably whitespace. | |
1050 | Make sure the name is null terminated by clobbering the | |
1051 | whitespace, look it up in the hash table, then fix it back. | |
1052 | Remove a dot, first, since the opcode tables have none. */ | |
1053 | if (pdot != NULL) | |
1054 | { | |
1055 | for (pdotmove = pdot; pdotmove < p; pdotmove++) | |
1056 | *pdotmove = pdotmove[1]; | |
1057 | p--; | |
1058 | } | |
1059 | ||
1060 | c = *p; | |
1061 | *p = '\0'; | |
1062 | opcode = (const struct m68k_incant *) hash_find (op_hash, instring); | |
1063 | *p = c; | |
1064 | ||
1065 | if (pdot != NULL) | |
1066 | { | |
1067 | for (pdotmove = p; pdotmove > pdot; pdotmove--) | |
1068 | *pdotmove = pdotmove[-1]; | |
1069 | *pdot = '.'; | |
1070 | ++p; | |
1071 | } | |
1072 | ||
1073 | if (opcode == NULL) | |
1074 | { | |
1075 | the_ins.error = _("Unknown operator"); | |
1076 | return; | |
1077 | } | |
1078 | ||
36759679 | 1079 | /* Found a legitimate opcode, start matching operands. */ |
252b5132 RH |
1080 | while (*p == ' ') |
1081 | ++p; | |
1082 | ||
1083 | if (opcode->m_operands == 0) | |
1084 | { | |
1085 | char *old = input_line_pointer; | |
1086 | *old = '\n'; | |
1087 | input_line_pointer = p; | |
36759679 | 1088 | /* Ahh - it's a motorola style psuedo op. */ |
252b5132 RH |
1089 | mote_pseudo_table[opcode->m_opnum].poc_handler |
1090 | (mote_pseudo_table[opcode->m_opnum].poc_val); | |
1091 | input_line_pointer = old; | |
1092 | *old = 0; | |
1093 | ||
1094 | return; | |
1095 | } | |
1096 | ||
1097 | if (flag_mri && opcode->m_opnum == 0) | |
1098 | { | |
1099 | /* In MRI mode, random garbage is allowed after an instruction | |
1100 | which accepts no operands. */ | |
1101 | the_ins.args = opcode->m_operands; | |
1102 | the_ins.numargs = opcode->m_opnum; | |
1103 | the_ins.numo = opcode->m_codenum; | |
1104 | the_ins.opcode[0] = getone (opcode); | |
1105 | the_ins.opcode[1] = gettwo (opcode); | |
1106 | return; | |
1107 | } | |
1108 | ||
1109 | for (opP = &the_ins.operands[0]; *p; opP++) | |
1110 | { | |
1111 | p = crack_operand (p, opP); | |
1112 | ||
1113 | if (opP->error) | |
1114 | { | |
1115 | the_ins.error = opP->error; | |
1116 | return; | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | opsfound = opP - &the_ins.operands[0]; | |
1121 | ||
1122 | /* This ugly hack is to support the floating pt opcodes in their | |
1123 | standard form. Essentially, we fake a first enty of type COP#1 */ | |
1124 | if (opcode->m_operands[0] == 'I') | |
1125 | { | |
1126 | int n; | |
1127 | ||
1128 | for (n = opsfound; n > 0; --n) | |
1129 | the_ins.operands[n] = the_ins.operands[n - 1]; | |
1130 | ||
1131 | memset ((char *) (&the_ins.operands[0]), '\0', | |
1132 | sizeof (the_ins.operands[0])); | |
1133 | the_ins.operands[0].mode = CONTROL; | |
1134 | the_ins.operands[0].reg = m68k_float_copnum; | |
1135 | opsfound++; | |
1136 | } | |
1137 | ||
36759679 | 1138 | /* We've got the operands. Find an opcode that'll accept them. */ |
252b5132 RH |
1139 | for (losing = 0;;) |
1140 | { | |
1141 | /* If we didn't get the right number of ops, or we have no | |
92774660 | 1142 | common model with this pattern then reject this pattern. */ |
252b5132 RH |
1143 | |
1144 | ok_arch |= opcode->m_arch; | |
1145 | if (opsfound != opcode->m_opnum | |
1146 | || ((opcode->m_arch & current_architecture) == 0)) | |
1147 | ++losing; | |
1148 | else | |
1149 | { | |
1150 | for (s = opcode->m_operands, opP = &the_ins.operands[0]; | |
1151 | *s && !losing; | |
1152 | s += 2, opP++) | |
1153 | { | |
1154 | /* Warning: this switch is huge! */ | |
1155 | /* I've tried to organize the cases into this order: | |
1156 | non-alpha first, then alpha by letter. Lower-case | |
1157 | goes directly before uppercase counterpart. */ | |
1158 | /* Code with multiple case ...: gets sorted by the lowest | |
1159 | case ... it belongs to. I hope this makes sense. */ | |
1160 | switch (*s) | |
1161 | { | |
1162 | case '!': | |
1163 | switch (opP->mode) | |
1164 | { | |
1165 | case IMMED: | |
1166 | case DREG: | |
1167 | case AREG: | |
1168 | case FPREG: | |
1169 | case CONTROL: | |
1170 | case AINC: | |
1171 | case ADEC: | |
1172 | case REGLST: | |
1173 | losing++; | |
1174 | break; | |
1175 | default: | |
1176 | break; | |
1177 | } | |
1178 | break; | |
1179 | ||
1180 | case '<': | |
1181 | switch (opP->mode) | |
1182 | { | |
1183 | case DREG: | |
1184 | case AREG: | |
1185 | case FPREG: | |
1186 | case CONTROL: | |
1187 | case IMMED: | |
1188 | case ADEC: | |
1189 | case REGLST: | |
1190 | losing++; | |
1191 | break; | |
1192 | default: | |
1193 | break; | |
1194 | } | |
1195 | break; | |
1196 | ||
1197 | case '>': | |
1198 | switch (opP->mode) | |
1199 | { | |
1200 | case DREG: | |
1201 | case AREG: | |
1202 | case FPREG: | |
1203 | case CONTROL: | |
1204 | case IMMED: | |
1205 | case AINC: | |
1206 | case REGLST: | |
1207 | losing++; | |
1208 | break; | |
1209 | case ABSL: | |
1210 | break; | |
1211 | default: | |
1212 | if (opP->reg == PC | |
1213 | || opP->reg == ZPC) | |
1214 | losing++; | |
1215 | break; | |
1216 | } | |
1217 | break; | |
1218 | ||
1219 | case 'm': | |
1220 | switch (opP->mode) | |
1221 | { | |
1222 | case DREG: | |
1223 | case AREG: | |
1224 | case AINDR: | |
1225 | case AINC: | |
1226 | case ADEC: | |
1227 | break; | |
1228 | default: | |
1229 | losing++; | |
1230 | } | |
8a104df9 | 1231 | break; |
252b5132 RH |
1232 | |
1233 | case 'n': | |
1234 | switch (opP->mode) | |
1235 | { | |
1236 | case DISP: | |
1237 | break; | |
1238 | default: | |
1239 | losing++; | |
1240 | } | |
8a104df9 | 1241 | break; |
252b5132 RH |
1242 | |
1243 | case 'o': | |
1244 | switch (opP->mode) | |
1245 | { | |
1246 | case BASE: | |
1247 | case ABSL: | |
1248 | case IMMED: | |
1249 | break; | |
1250 | default: | |
1251 | losing++; | |
1252 | } | |
8a104df9 | 1253 | break; |
252b5132 RH |
1254 | |
1255 | case 'p': | |
1256 | switch (opP->mode) | |
1257 | { | |
1258 | case DREG: | |
1259 | case AREG: | |
1260 | case AINDR: | |
1261 | case AINC: | |
1262 | case ADEC: | |
1263 | break; | |
1264 | case DISP: | |
1265 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1266 | losing++; |
252b5132 RH |
1267 | break; |
1268 | default: | |
1269 | losing++; | |
1270 | } | |
8a104df9 | 1271 | break; |
252b5132 RH |
1272 | |
1273 | case 'q': | |
1274 | switch (opP->mode) | |
1275 | { | |
1276 | case DREG: | |
1277 | case AINDR: | |
1278 | case AINC: | |
1279 | case ADEC: | |
1280 | break; | |
1281 | case DISP: | |
1282 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1283 | losing++; |
252b5132 RH |
1284 | break; |
1285 | default: | |
1286 | losing++; | |
1287 | break; | |
1288 | } | |
8a104df9 | 1289 | break; |
252b5132 RH |
1290 | |
1291 | case 'v': | |
1292 | switch (opP->mode) | |
1293 | { | |
1294 | case DREG: | |
1295 | case AINDR: | |
1296 | case AINC: | |
1297 | case ADEC: | |
1298 | case ABSL: | |
1299 | break; | |
1300 | case DISP: | |
1301 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1302 | losing++; |
252b5132 RH |
1303 | break; |
1304 | default: | |
1305 | losing++; | |
1306 | break; | |
1307 | } | |
1308 | break; | |
1309 | ||
1310 | case '#': | |
1311 | if (opP->mode != IMMED) | |
1312 | losing++; | |
1313 | else if (s[1] == 'b' | |
1314 | && ! isvar (&opP->disp) | |
1315 | && (opP->disp.exp.X_op != O_constant | |
1316 | || ! isbyte (opP->disp.exp.X_add_number))) | |
1317 | losing++; | |
1318 | else if (s[1] == 'B' | |
1319 | && ! isvar (&opP->disp) | |
1320 | && (opP->disp.exp.X_op != O_constant | |
1321 | || ! issbyte (opP->disp.exp.X_add_number))) | |
1322 | losing++; | |
1323 | else if (s[1] == 'w' | |
1324 | && ! isvar (&opP->disp) | |
1325 | && (opP->disp.exp.X_op != O_constant | |
1326 | || ! isword (opP->disp.exp.X_add_number))) | |
1327 | losing++; | |
1328 | else if (s[1] == 'W' | |
1329 | && ! isvar (&opP->disp) | |
1330 | && (opP->disp.exp.X_op != O_constant | |
1331 | || ! issword (opP->disp.exp.X_add_number))) | |
1332 | losing++; | |
1333 | break; | |
1334 | ||
1335 | case '^': | |
1336 | case 'T': | |
1337 | if (opP->mode != IMMED) | |
1338 | losing++; | |
1339 | break; | |
1340 | ||
1341 | case '$': | |
1342 | if (opP->mode == AREG | |
1343 | || opP->mode == CONTROL | |
1344 | || opP->mode == FPREG | |
1345 | || opP->mode == IMMED | |
1346 | || opP->mode == REGLST | |
1347 | || (opP->mode != ABSL | |
1348 | && (opP->reg == PC | |
1349 | || opP->reg == ZPC))) | |
1350 | losing++; | |
1351 | break; | |
1352 | ||
1353 | case '%': | |
1354 | if (opP->mode == CONTROL | |
1355 | || opP->mode == FPREG | |
1356 | || opP->mode == REGLST | |
1357 | || opP->mode == IMMED | |
1358 | || (opP->mode != ABSL | |
1359 | && (opP->reg == PC | |
1360 | || opP->reg == ZPC))) | |
1361 | losing++; | |
1362 | break; | |
1363 | ||
1364 | case '&': | |
1365 | switch (opP->mode) | |
1366 | { | |
1367 | case DREG: | |
1368 | case AREG: | |
1369 | case FPREG: | |
1370 | case CONTROL: | |
1371 | case IMMED: | |
1372 | case AINC: | |
1373 | case ADEC: | |
1374 | case REGLST: | |
1375 | losing++; | |
1376 | break; | |
1377 | case ABSL: | |
1378 | break; | |
1379 | default: | |
1380 | if (opP->reg == PC | |
1381 | || opP->reg == ZPC) | |
1382 | losing++; | |
1383 | break; | |
1384 | } | |
1385 | break; | |
1386 | ||
1387 | case '*': | |
1388 | if (opP->mode == CONTROL | |
1389 | || opP->mode == FPREG | |
1390 | || opP->mode == REGLST) | |
1391 | losing++; | |
1392 | break; | |
1393 | ||
1394 | case '+': | |
1395 | if (opP->mode != AINC) | |
1396 | losing++; | |
1397 | break; | |
1398 | ||
1399 | case '-': | |
1400 | if (opP->mode != ADEC) | |
1401 | losing++; | |
1402 | break; | |
1403 | ||
1404 | case '/': | |
1405 | switch (opP->mode) | |
1406 | { | |
1407 | case AREG: | |
1408 | case CONTROL: | |
1409 | case FPREG: | |
1410 | case AINC: | |
1411 | case ADEC: | |
1412 | case IMMED: | |
1413 | case REGLST: | |
1414 | losing++; | |
1415 | break; | |
1416 | default: | |
1417 | break; | |
1418 | } | |
1419 | break; | |
1420 | ||
1421 | case ';': | |
1422 | switch (opP->mode) | |
1423 | { | |
1424 | case AREG: | |
1425 | case CONTROL: | |
1426 | case FPREG: | |
1427 | case REGLST: | |
1428 | losing++; | |
1429 | break; | |
1430 | default: | |
1431 | break; | |
1432 | } | |
1433 | break; | |
1434 | ||
1435 | case '?': | |
1436 | switch (opP->mode) | |
1437 | { | |
1438 | case AREG: | |
1439 | case CONTROL: | |
1440 | case FPREG: | |
1441 | case AINC: | |
1442 | case ADEC: | |
1443 | case IMMED: | |
1444 | case REGLST: | |
1445 | losing++; | |
1446 | break; | |
1447 | case ABSL: | |
1448 | break; | |
1449 | default: | |
1450 | if (opP->reg == PC || opP->reg == ZPC) | |
1451 | losing++; | |
1452 | break; | |
1453 | } | |
1454 | break; | |
1455 | ||
1456 | case '@': | |
1457 | switch (opP->mode) | |
1458 | { | |
1459 | case AREG: | |
1460 | case CONTROL: | |
1461 | case FPREG: | |
1462 | case IMMED: | |
1463 | case REGLST: | |
1464 | losing++; | |
1465 | break; | |
1466 | default: | |
1467 | break; | |
1468 | } | |
1469 | break; | |
1470 | ||
1471 | case '~': /* For now! (JF FOO is this right?) */ | |
1472 | switch (opP->mode) | |
1473 | { | |
1474 | case DREG: | |
1475 | case AREG: | |
1476 | case CONTROL: | |
1477 | case FPREG: | |
1478 | case IMMED: | |
1479 | case REGLST: | |
1480 | losing++; | |
1481 | break; | |
1482 | case ABSL: | |
1483 | break; | |
1484 | default: | |
1485 | if (opP->reg == PC | |
1486 | || opP->reg == ZPC) | |
1487 | losing++; | |
1488 | break; | |
1489 | } | |
1490 | break; | |
1491 | ||
1492 | case '3': | |
1493 | if (opP->mode != CONTROL | |
1494 | || (opP->reg != TT0 && opP->reg != TT1)) | |
1495 | losing++; | |
1496 | break; | |
1497 | ||
1498 | case 'A': | |
1499 | if (opP->mode != AREG) | |
1500 | losing++; | |
1501 | break; | |
1502 | ||
1503 | case 'a': | |
1504 | if (opP->mode != AINDR) | |
1505 | ++losing; | |
1506 | break; | |
1507 | ||
1508 | case 'B': /* FOO */ | |
1509 | if (opP->mode != ABSL | |
1510 | || (flag_long_jumps | |
1511 | && strncmp (instring, "jbsr", 4) == 0)) | |
1512 | losing++; | |
1513 | break; | |
1514 | ||
3e602632 NC |
1515 | case 'b': |
1516 | switch (opP->mode) | |
1517 | { | |
1518 | case IMMED: | |
1519 | case ABSL: | |
1520 | case AREG: | |
1521 | case FPREG: | |
1522 | case CONTROL: | |
1523 | case POST: | |
1524 | case PRE: | |
1525 | case REGLST: | |
1526 | losing++; | |
1527 | break; | |
1528 | default: | |
1529 | break; | |
1530 | } | |
1531 | break; | |
1532 | ||
252b5132 RH |
1533 | case 'C': |
1534 | if (opP->mode != CONTROL || opP->reg != CCR) | |
1535 | losing++; | |
1536 | break; | |
1537 | ||
1538 | case 'd': | |
1539 | if (opP->mode != DISP | |
1540 | || opP->reg < ADDR0 | |
1541 | || opP->reg > ADDR7) | |
1542 | losing++; | |
1543 | break; | |
1544 | ||
1545 | case 'D': | |
1546 | if (opP->mode != DREG) | |
1547 | losing++; | |
1548 | break; | |
1549 | ||
6da466c7 ILT |
1550 | case 'E': |
1551 | if (opP->reg != ACC) | |
1552 | losing++; | |
1553 | break; | |
1554 | ||
252b5132 RH |
1555 | case 'F': |
1556 | if (opP->mode != FPREG) | |
1557 | losing++; | |
1558 | break; | |
1559 | ||
6da466c7 ILT |
1560 | case 'G': |
1561 | if (opP->reg != MACSR) | |
1562 | losing++; | |
1563 | break; | |
1564 | ||
1565 | case 'H': | |
1566 | if (opP->reg != MASK) | |
1567 | losing++; | |
1568 | break; | |
1569 | ||
252b5132 RH |
1570 | case 'I': |
1571 | if (opP->mode != CONTROL | |
1572 | || opP->reg < COP0 | |
1573 | || opP->reg > COP7) | |
1574 | losing++; | |
1575 | break; | |
1576 | ||
1577 | case 'J': | |
1578 | if (opP->mode != CONTROL | |
1579 | || opP->reg < USP | |
1580 | || opP->reg > last_movec_reg) | |
1581 | losing++; | |
1582 | else | |
1583 | { | |
1584 | const enum m68k_register *rp; | |
1585 | for (rp = control_regs; *rp; rp++) | |
1586 | if (*rp == opP->reg) | |
1587 | break; | |
1588 | if (*rp == 0) | |
1589 | losing++; | |
1590 | } | |
1591 | break; | |
1592 | ||
1593 | case 'k': | |
1594 | if (opP->mode != IMMED) | |
1595 | losing++; | |
1596 | break; | |
1597 | ||
1598 | case 'l': | |
1599 | case 'L': | |
1600 | if (opP->mode == DREG | |
1601 | || opP->mode == AREG | |
1602 | || opP->mode == FPREG) | |
1603 | { | |
1604 | if (s[1] == '8') | |
1605 | losing++; | |
1606 | else | |
1607 | { | |
1608 | switch (opP->mode) | |
1609 | { | |
1610 | case DREG: | |
1611 | opP->mask = 1 << (opP->reg - DATA0); | |
1612 | break; | |
1613 | case AREG: | |
1614 | opP->mask = 1 << (opP->reg - ADDR0 + 8); | |
1615 | break; | |
1616 | case FPREG: | |
1617 | opP->mask = 1 << (opP->reg - FP0 + 16); | |
1618 | break; | |
1619 | default: | |
1620 | abort (); | |
1621 | } | |
1622 | opP->mode = REGLST; | |
1623 | } | |
1624 | } | |
1625 | else if (opP->mode == CONTROL) | |
1626 | { | |
1627 | if (s[1] != '8') | |
1628 | losing++; | |
1629 | else | |
1630 | { | |
1631 | switch (opP->reg) | |
1632 | { | |
1633 | case FPI: | |
1634 | opP->mask = 1 << 24; | |
1635 | break; | |
1636 | case FPS: | |
1637 | opP->mask = 1 << 25; | |
1638 | break; | |
1639 | case FPC: | |
1640 | opP->mask = 1 << 26; | |
1641 | break; | |
1642 | default: | |
1643 | losing++; | |
1644 | break; | |
1645 | } | |
1646 | opP->mode = REGLST; | |
1647 | } | |
1648 | } | |
1649 | else if (opP->mode != REGLST) | |
1650 | losing++; | |
1651 | else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0) | |
1652 | losing++; | |
1653 | else if (s[1] == '3' && (opP->mask & 0x7000000) != 0) | |
1654 | losing++; | |
1655 | break; | |
1656 | ||
1657 | case 'M': | |
1658 | if (opP->mode != IMMED) | |
1659 | losing++; | |
1660 | else if (opP->disp.exp.X_op != O_constant | |
1661 | || ! issbyte (opP->disp.exp.X_add_number)) | |
1662 | losing++; | |
1663 | else if (! m68k_quick | |
1664 | && instring[3] != 'q' | |
1665 | && instring[4] != 'q') | |
1666 | losing++; | |
1667 | break; | |
1668 | ||
1669 | case 'O': | |
1670 | if (opP->mode != DREG | |
1671 | && opP->mode != IMMED | |
1672 | && opP->mode != ABSL) | |
1673 | losing++; | |
1674 | break; | |
1675 | ||
1676 | case 'Q': | |
1677 | if (opP->mode != IMMED) | |
1678 | losing++; | |
1679 | else if (opP->disp.exp.X_op != O_constant | |
1680 | || opP->disp.exp.X_add_number < 1 | |
1681 | || opP->disp.exp.X_add_number > 8) | |
1682 | losing++; | |
1683 | else if (! m68k_quick | |
1684 | && (strncmp (instring, "add", 3) == 0 | |
1685 | || strncmp (instring, "sub", 3) == 0) | |
1686 | && instring[3] != 'q') | |
1687 | losing++; | |
1688 | break; | |
1689 | ||
1690 | case 'R': | |
1691 | if (opP->mode != DREG && opP->mode != AREG) | |
1692 | losing++; | |
1693 | break; | |
1694 | ||
1695 | case 'r': | |
1696 | if (opP->mode != AINDR | |
1697 | && (opP->mode != BASE | |
1698 | || (opP->reg != 0 | |
1699 | && opP->reg != ZADDR0) | |
1700 | || opP->disp.exp.X_op != O_absent | |
1701 | || ((opP->index.reg < DATA0 | |
1702 | || opP->index.reg > DATA7) | |
1703 | && (opP->index.reg < ADDR0 | |
1704 | || opP->index.reg > ADDR7)) | |
1705 | || opP->index.size != SIZE_UNSPEC | |
1706 | || opP->index.scale != 1)) | |
1707 | losing++; | |
1708 | break; | |
1709 | ||
1710 | case 's': | |
1711 | if (opP->mode != CONTROL | |
1712 | || ! (opP->reg == FPI | |
1713 | || opP->reg == FPS | |
1714 | || opP->reg == FPC)) | |
1715 | losing++; | |
1716 | break; | |
1717 | ||
1718 | case 'S': | |
1719 | if (opP->mode != CONTROL || opP->reg != SR) | |
1720 | losing++; | |
1721 | break; | |
1722 | ||
1723 | case 't': | |
1724 | if (opP->mode != IMMED) | |
1725 | losing++; | |
1726 | else if (opP->disp.exp.X_op != O_constant | |
1727 | || opP->disp.exp.X_add_number < 0 | |
1728 | || opP->disp.exp.X_add_number > 7) | |
1729 | losing++; | |
1730 | break; | |
1731 | ||
1732 | case 'U': | |
1733 | if (opP->mode != CONTROL || opP->reg != USP) | |
1734 | losing++; | |
1735 | break; | |
1736 | ||
3e602632 NC |
1737 | case 'x': |
1738 | if (opP->mode != IMMED) | |
1739 | losing++; | |
1740 | else if (opP->disp.exp.X_op != O_constant | |
1741 | || opP->disp.exp.X_add_number < -1 | |
1742 | || opP->disp.exp.X_add_number > 7 | |
1743 | || opP->disp.exp.X_add_number == 0) | |
1744 | losing++; | |
1745 | break; | |
1746 | ||
252b5132 RH |
1747 | /* JF these are out of order. We could put them |
1748 | in order if we were willing to put up with | |
1749 | bunches of #ifdef m68851s in the code. | |
1750 | ||
1751 | Don't forget that you need these operands | |
1752 | to use 68030 MMU instructions. */ | |
1753 | #ifndef NO_68851 | |
36759679 | 1754 | /* Memory addressing mode used by pflushr. */ |
252b5132 RH |
1755 | case '|': |
1756 | if (opP->mode == CONTROL | |
1757 | || opP->mode == FPREG | |
1758 | || opP->mode == DREG | |
1759 | || opP->mode == AREG | |
1760 | || opP->mode == REGLST) | |
1761 | losing++; | |
1762 | /* We should accept immediate operands, but they | |
1763 | supposedly have to be quad word, and we don't | |
1764 | handle that. I would like to see what a Motorola | |
1765 | assembler does before doing something here. */ | |
1766 | if (opP->mode == IMMED) | |
1767 | losing++; | |
1768 | break; | |
1769 | ||
1770 | case 'f': | |
1771 | if (opP->mode != CONTROL | |
1772 | || (opP->reg != SFC && opP->reg != DFC)) | |
1773 | losing++; | |
1774 | break; | |
1775 | ||
1776 | case '0': | |
1777 | if (opP->mode != CONTROL || opP->reg != TC) | |
1778 | losing++; | |
1779 | break; | |
1780 | ||
1781 | case '1': | |
1782 | if (opP->mode != CONTROL || opP->reg != AC) | |
1783 | losing++; | |
1784 | break; | |
1785 | ||
1786 | case '2': | |
1787 | if (opP->mode != CONTROL | |
1788 | || (opP->reg != CAL | |
1789 | && opP->reg != VAL | |
1790 | && opP->reg != SCC)) | |
1791 | losing++; | |
1792 | break; | |
1793 | ||
1794 | case 'V': | |
1795 | if (opP->mode != CONTROL | |
1796 | || opP->reg != VAL) | |
1797 | losing++; | |
1798 | break; | |
1799 | ||
1800 | case 'W': | |
1801 | if (opP->mode != CONTROL | |
1802 | || (opP->reg != DRP | |
1803 | && opP->reg != SRP | |
1804 | && opP->reg != CRP)) | |
1805 | losing++; | |
1806 | break; | |
1807 | ||
3e602632 NC |
1808 | case 'w': |
1809 | switch (opP->mode) | |
1810 | { | |
1811 | case IMMED: | |
1812 | case ABSL: | |
1813 | case AREG: | |
1814 | case DREG: | |
1815 | case FPREG: | |
1816 | case CONTROL: | |
1817 | case POST: | |
1818 | case PRE: | |
1819 | case REGLST: | |
1820 | losing++; | |
1821 | break; | |
1822 | default: | |
1823 | break; | |
1824 | } | |
1825 | break; | |
1826 | ||
252b5132 RH |
1827 | case 'X': |
1828 | if (opP->mode != CONTROL | |
1829 | || (!(opP->reg >= BAD && opP->reg <= BAD + 7) | |
1830 | && !(opP->reg >= BAC && opP->reg <= BAC + 7))) | |
1831 | losing++; | |
1832 | break; | |
1833 | ||
1834 | case 'Y': | |
1835 | if (opP->mode != CONTROL || opP->reg != PSR) | |
1836 | losing++; | |
1837 | break; | |
1838 | ||
1839 | case 'Z': | |
1840 | if (opP->mode != CONTROL || opP->reg != PCSR) | |
1841 | losing++; | |
1842 | break; | |
1843 | #endif | |
1844 | case 'c': | |
1845 | if (opP->mode != CONTROL | |
1846 | || (opP->reg != NC | |
1847 | && opP->reg != IC | |
1848 | && opP->reg != DC | |
1849 | && opP->reg != BC)) | |
36759679 | 1850 | losing++; |
252b5132 RH |
1851 | break; |
1852 | ||
1853 | case '_': | |
1854 | if (opP->mode != ABSL) | |
1855 | ++losing; | |
1856 | break; | |
1857 | ||
6da466c7 ILT |
1858 | case 'u': |
1859 | if (opP->reg < DATA0L || opP->reg > ADDR7U) | |
1860 | losing++; | |
1861 | /* FIXME: kludge instead of fixing parser: | |
1862 | upper/lower registers are *not* CONTROL | |
92774660 | 1863 | registers, but ordinary ones. */ |
6da466c7 ILT |
1864 | if ((opP->reg >= DATA0L && opP->reg <= DATA7L) |
1865 | || (opP->reg >= DATA0U && opP->reg <= DATA7U)) | |
1866 | opP->mode = DREG; | |
1867 | else | |
1868 | opP->mode = AREG; | |
1869 | break; | |
1870 | ||
3e602632 NC |
1871 | case 'y': |
1872 | if (!(opP->mode == AINDR | |
1873 | || (opP->mode == DISP && !(opP->reg == PC || | |
1874 | opP->reg == ZPC)))) | |
1875 | losing++; | |
1876 | break; | |
1877 | ||
1878 | case 'z': | |
1879 | if (!(opP->mode == AINDR || opP->mode == DISP)) | |
1880 | losing++; | |
1881 | break; | |
1882 | ||
252b5132 RH |
1883 | default: |
1884 | abort (); | |
36759679 | 1885 | } |
252b5132 RH |
1886 | |
1887 | if (losing) | |
1888 | break; | |
36759679 NC |
1889 | } |
1890 | } | |
252b5132 RH |
1891 | |
1892 | if (!losing) | |
36759679 | 1893 | break; |
252b5132 RH |
1894 | |
1895 | opcode = opcode->m_next; | |
1896 | ||
1897 | if (!opcode) | |
1898 | { | |
1899 | if (ok_arch | |
1900 | && !(ok_arch & current_architecture)) | |
1901 | { | |
1902 | char buf[200], *cp; | |
1903 | ||
1904 | strcpy (buf, | |
1905 | _("invalid instruction for this architecture; needs ")); | |
1906 | cp = buf + strlen (buf); | |
1907 | switch (ok_arch) | |
1908 | { | |
3e602632 NC |
1909 | case cfloat: |
1910 | strcpy (cp, _("ColdFire fpu (cfv4e)")); | |
1911 | break; | |
252b5132 RH |
1912 | case mfloat: |
1913 | strcpy (cp, _("fpu (68040, 68060 or 68881/68882)")); | |
1914 | break; | |
1915 | case mmmu: | |
1916 | strcpy (cp, _("mmu (68030 or 68851)")); | |
1917 | break; | |
1918 | case m68020up: | |
1919 | strcpy (cp, _("68020 or higher")); | |
1920 | break; | |
1921 | case m68000up: | |
1922 | strcpy (cp, _("68000 or higher")); | |
1923 | break; | |
1924 | case m68010up: | |
1925 | strcpy (cp, _("68010 or higher")); | |
1926 | break; | |
1927 | default: | |
1928 | { | |
1929 | int got_one = 0, idx; | |
8fce3f5e AM |
1930 | for (idx = 0; |
1931 | idx < (int) (sizeof (archs) / sizeof (archs[0])); | |
252b5132 RH |
1932 | idx++) |
1933 | { | |
1934 | if ((archs[idx].arch & ok_arch) | |
1935 | && ! archs[idx].alias) | |
1936 | { | |
1937 | if (got_one) | |
1938 | { | |
1939 | strcpy (cp, " or "); | |
1940 | cp += strlen (cp); | |
1941 | } | |
1942 | got_one = 1; | |
1943 | strcpy (cp, archs[idx].name); | |
1944 | cp += strlen (cp); | |
1945 | } | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | cp = xmalloc (strlen (buf) + 1); | |
1950 | strcpy (cp, buf); | |
1951 | the_ins.error = cp; | |
1952 | } | |
1953 | else | |
1954 | the_ins.error = _("operands mismatch"); | |
1955 | return; | |
36759679 | 1956 | } |
252b5132 RH |
1957 | |
1958 | losing = 0; | |
1959 | } | |
1960 | ||
36759679 | 1961 | /* Now assemble it. */ |
252b5132 RH |
1962 | the_ins.args = opcode->m_operands; |
1963 | the_ins.numargs = opcode->m_opnum; | |
1964 | the_ins.numo = opcode->m_codenum; | |
1965 | the_ins.opcode[0] = getone (opcode); | |
1966 | the_ins.opcode[1] = gettwo (opcode); | |
1967 | ||
1968 | for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) | |
1969 | { | |
1970 | /* This switch is a doozy. | |
1971 | Watch the first step; its a big one! */ | |
1972 | switch (s[0]) | |
1973 | { | |
1974 | ||
1975 | case '*': | |
1976 | case '~': | |
1977 | case '%': | |
1978 | case ';': | |
1979 | case '@': | |
1980 | case '!': | |
1981 | case '&': | |
1982 | case '$': | |
1983 | case '?': | |
1984 | case '/': | |
1985 | case '<': | |
1986 | case '>': | |
3e602632 | 1987 | case 'b': |
252b5132 RH |
1988 | case 'm': |
1989 | case 'n': | |
1990 | case 'o': | |
1991 | case 'p': | |
1992 | case 'q': | |
1993 | case 'v': | |
3e602632 NC |
1994 | case 'w': |
1995 | case 'y': | |
1996 | case 'z': | |
252b5132 RH |
1997 | #ifndef NO_68851 |
1998 | case '|': | |
1999 | #endif | |
2000 | switch (opP->mode) | |
2001 | { | |
2002 | case IMMED: | |
2003 | tmpreg = 0x3c; /* 7.4 */ | |
2004 | if (strchr ("bwl", s[1])) | |
3e602632 | 2005 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2006 | else |
2007 | nextword = get_num (&opP->disp, 0); | |
2008 | if (isvar (&opP->disp)) | |
2009 | add_fix (s[1], &opP->disp, 0, 0); | |
2010 | switch (s[1]) | |
2011 | { | |
2012 | case 'b': | |
2013 | if (!isbyte (nextword)) | |
2014 | opP->error = _("operand out of range"); | |
2015 | addword (nextword); | |
2016 | baseo = 0; | |
2017 | break; | |
2018 | case 'w': | |
2019 | if (!isword (nextword)) | |
2020 | opP->error = _("operand out of range"); | |
2021 | addword (nextword); | |
2022 | baseo = 0; | |
2023 | break; | |
2024 | case 'W': | |
2025 | if (!issword (nextword)) | |
2026 | opP->error = _("operand out of range"); | |
2027 | addword (nextword); | |
2028 | baseo = 0; | |
2029 | break; | |
2030 | case 'l': | |
2031 | addword (nextword >> 16); | |
2032 | addword (nextword); | |
2033 | baseo = 0; | |
2034 | break; | |
2035 | ||
2036 | case 'f': | |
2037 | baseo = 2; | |
2038 | outro = 8; | |
2039 | break; | |
2040 | case 'F': | |
2041 | baseo = 4; | |
2042 | outro = 11; | |
2043 | break; | |
2044 | case 'x': | |
2045 | baseo = 6; | |
2046 | outro = 15; | |
2047 | break; | |
2048 | case 'p': | |
2049 | baseo = 6; | |
2050 | outro = -1; | |
2051 | break; | |
2052 | default: | |
2053 | abort (); | |
2054 | } | |
2055 | if (!baseo) | |
2056 | break; | |
2057 | ||
36759679 | 2058 | /* We gotta put out some float. */ |
252b5132 RH |
2059 | if (op (&opP->disp) != O_big) |
2060 | { | |
2061 | valueT val; | |
2062 | int gencnt; | |
2063 | ||
2064 | /* Can other cases happen here? */ | |
2065 | if (op (&opP->disp) != O_constant) | |
2066 | abort (); | |
2067 | ||
2068 | val = (valueT) offs (&opP->disp); | |
2069 | gencnt = 0; | |
2070 | do | |
2071 | { | |
2072 | generic_bignum[gencnt] = (LITTLENUM_TYPE) val; | |
2073 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
2074 | ++gencnt; | |
2075 | } | |
2076 | while (val != 0); | |
2077 | offs (&opP->disp) = gencnt; | |
2078 | } | |
2079 | if (offs (&opP->disp) > 0) | |
2080 | { | |
2081 | if (offs (&opP->disp) > baseo) | |
2082 | { | |
2083 | as_warn (_("Bignum too big for %c format; truncated"), | |
2084 | s[1]); | |
2085 | offs (&opP->disp) = baseo; | |
2086 | } | |
2087 | baseo -= offs (&opP->disp); | |
2088 | while (baseo--) | |
2089 | addword (0); | |
2090 | for (wordp = generic_bignum + offs (&opP->disp) - 1; | |
2091 | offs (&opP->disp)--; | |
2092 | --wordp) | |
2093 | addword (*wordp); | |
2094 | break; | |
2095 | } | |
2096 | gen_to_words (words, baseo, (long) outro); | |
2097 | for (wordp = words; baseo--; wordp++) | |
2098 | addword (*wordp); | |
2099 | break; | |
2100 | case DREG: | |
2101 | tmpreg = opP->reg - DATA; /* 0.dreg */ | |
2102 | break; | |
2103 | case AREG: | |
2104 | tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */ | |
2105 | break; | |
2106 | case AINDR: | |
2107 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2108 | break; | |
2109 | case ADEC: | |
2110 | tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */ | |
2111 | break; | |
2112 | case AINC: | |
2113 | tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */ | |
2114 | break; | |
2115 | case DISP: | |
2116 | ||
3e602632 | 2117 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2118 | |
2119 | if (opP->reg == PC | |
2120 | && ! isvar (&opP->disp) | |
2121 | && m68k_abspcadd) | |
2122 | { | |
2123 | opP->disp.exp.X_op = O_symbol; | |
2124 | #ifndef BFD_ASSEMBLER | |
2125 | opP->disp.exp.X_add_symbol = &abs_symbol; | |
2126 | #else | |
2127 | opP->disp.exp.X_add_symbol = | |
2128 | section_symbol (absolute_section); | |
2129 | #endif | |
2130 | } | |
2131 | ||
36759679 | 2132 | /* Force into index mode. Hope this works. */ |
252b5132 RH |
2133 | |
2134 | /* We do the first bit for 32-bit displacements, and the | |
2135 | second bit for 16 bit ones. It is possible that we | |
2136 | should make the default be WORD instead of LONG, but | |
2137 | I think that'd break GCC, so we put up with a little | |
2138 | inefficiency for the sake of working output. */ | |
2139 | ||
2140 | if (!issword (nextword) | |
2141 | || (isvar (&opP->disp) | |
2142 | && ((opP->disp.size == SIZE_UNSPEC | |
2143 | && flag_short_refs == 0 | |
2144 | && cpu_of_arch (current_architecture) >= m68020 | |
6da466c7 | 2145 | && ! arch_coldfire_p (current_architecture)) |
252b5132 RH |
2146 | || opP->disp.size == SIZE_LONG))) |
2147 | { | |
2148 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2149 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2150 | opP->error = |
2151 | _("displacement too large for this architecture; needs 68020 or higher"); | |
2152 | if (opP->reg == PC) | |
2153 | tmpreg = 0x3B; /* 7.3 */ | |
2154 | else | |
2155 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2156 | if (isvar (&opP->disp)) | |
2157 | { | |
2158 | if (opP->reg == PC) | |
2159 | { | |
2160 | if (opP->disp.size == SIZE_LONG | |
2161 | #ifdef OBJ_ELF | |
2162 | /* If the displacement needs pic | |
2163 | relocation it cannot be relaxed. */ | |
2164 | || opP->disp.pic_reloc != pic_none | |
2165 | #endif | |
2166 | ) | |
2167 | { | |
2168 | addword (0x0170); | |
2169 | add_fix ('l', &opP->disp, 1, 2); | |
2170 | } | |
2171 | else | |
2172 | { | |
2173 | add_frag (adds (&opP->disp), | |
2174 | offs (&opP->disp), | |
151337e8 | 2175 | TAB (PCREL1632, SZ_UNDEF)); |
252b5132 RH |
2176 | break; |
2177 | } | |
2178 | } | |
2179 | else | |
2180 | { | |
2181 | addword (0x0170); | |
2182 | add_fix ('l', &opP->disp, 0, 0); | |
2183 | } | |
2184 | } | |
2185 | else | |
2186 | addword (0x0170); | |
2187 | addword (nextword >> 16); | |
2188 | } | |
2189 | else | |
2190 | { | |
2191 | if (opP->reg == PC) | |
2192 | tmpreg = 0x3A; /* 7.2 */ | |
2193 | else | |
2194 | tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */ | |
2195 | ||
2196 | if (isvar (&opP->disp)) | |
2197 | { | |
2198 | if (opP->reg == PC) | |
2199 | { | |
2200 | add_fix ('w', &opP->disp, 1, 0); | |
2201 | } | |
2202 | else | |
2203 | add_fix ('w', &opP->disp, 0, 0); | |
2204 | } | |
2205 | } | |
2206 | addword (nextword); | |
2207 | break; | |
2208 | ||
2209 | case POST: | |
2210 | case PRE: | |
2211 | case BASE: | |
2212 | nextword = 0; | |
3e602632 | 2213 | baseo = get_num (&opP->disp, 90); |
252b5132 | 2214 | if (opP->mode == POST || opP->mode == PRE) |
3e602632 | 2215 | outro = get_num (&opP->odisp, 90); |
252b5132 RH |
2216 | /* Figure out the `addressing mode'. |
2217 | Also turn on the BASE_DISABLE bit, if needed. */ | |
2218 | if (opP->reg == PC || opP->reg == ZPC) | |
2219 | { | |
2220 | tmpreg = 0x3b; /* 7.3 */ | |
2221 | if (opP->reg == ZPC) | |
2222 | nextword |= 0x80; | |
2223 | } | |
2224 | else if (opP->reg == 0) | |
2225 | { | |
2226 | nextword |= 0x80; | |
2227 | tmpreg = 0x30; /* 6.garbage */ | |
2228 | } | |
2229 | else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7) | |
2230 | { | |
2231 | nextword |= 0x80; | |
2232 | tmpreg = 0x30 + opP->reg - ZADDR0; | |
2233 | } | |
2234 | else | |
2235 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2236 | ||
2237 | siz1 = opP->disp.size; | |
2238 | if (opP->mode == POST || opP->mode == PRE) | |
2239 | siz2 = opP->odisp.size; | |
2240 | else | |
2241 | siz2 = SIZE_UNSPEC; | |
2242 | ||
36759679 | 2243 | /* Index register stuff. */ |
252b5132 RH |
2244 | if (opP->index.reg != 0 |
2245 | && opP->index.reg >= DATA | |
2246 | && opP->index.reg <= ADDR7) | |
2247 | { | |
2248 | nextword |= (opP->index.reg - DATA) << 12; | |
2249 | ||
2250 | if (opP->index.size == SIZE_LONG | |
2251 | || (opP->index.size == SIZE_UNSPEC | |
2252 | && m68k_index_width_default == SIZE_LONG)) | |
2253 | nextword |= 0x800; | |
2254 | ||
92774660 | 2255 | if ((opP->index.scale != 1 |
252b5132 | 2256 | && cpu_of_arch (current_architecture) < m68020) |
92774660 | 2257 | || (opP->index.scale == 8 |
3e602632 NC |
2258 | && (arch_coldfire_p (current_architecture) |
2259 | && !arch_coldfire_v4e_p(current_architecture)))) | |
252b5132 RH |
2260 | { |
2261 | opP->error = | |
2262 | _("scale factor invalid on this architecture; needs cpu32 or 68020 or higher"); | |
2263 | } | |
2264 | ||
6da466c7 ILT |
2265 | if (arch_coldfire_p (current_architecture) |
2266 | && opP->index.size == SIZE_WORD) | |
2267 | opP->error = _("invalid index size for coldfire"); | |
2268 | ||
252b5132 RH |
2269 | switch (opP->index.scale) |
2270 | { | |
2271 | case 1: | |
2272 | break; | |
2273 | case 2: | |
2274 | nextword |= 0x200; | |
2275 | break; | |
2276 | case 4: | |
2277 | nextword |= 0x400; | |
2278 | break; | |
2279 | case 8: | |
2280 | nextword |= 0x600; | |
2281 | break; | |
2282 | default: | |
2283 | abort (); | |
2284 | } | |
2285 | /* IF its simple, | |
2286 | GET US OUT OF HERE! */ | |
2287 | ||
2288 | /* Must be INDEX, with an index register. Address | |
2289 | register cannot be ZERO-PC, and either :b was | |
2290 | forced, or we know it will fit. For a 68000 or | |
2291 | 68010, force this mode anyways, because the | |
2292 | larger modes aren't supported. */ | |
2293 | if (opP->mode == BASE | |
2294 | && ((opP->reg >= ADDR0 | |
2295 | && opP->reg <= ADDR7) | |
2296 | || opP->reg == PC)) | |
2297 | { | |
2298 | if (siz1 == SIZE_BYTE | |
2299 | || cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2300 | || arch_coldfire_p (current_architecture) |
252b5132 RH |
2301 | || (siz1 == SIZE_UNSPEC |
2302 | && ! isvar (&opP->disp) | |
2303 | && issbyte (baseo))) | |
2304 | { | |
2305 | nextword += baseo & 0xff; | |
2306 | addword (nextword); | |
2307 | if (isvar (&opP->disp)) | |
2308 | { | |
2309 | /* Do a byte relocation. If it doesn't | |
2310 | fit (possible on m68000) let the | |
2311 | fixup processing complain later. */ | |
2312 | if (opP->reg == PC) | |
2313 | add_fix ('B', &opP->disp, 1, 1); | |
2314 | else | |
2315 | add_fix ('B', &opP->disp, 0, 0); | |
2316 | } | |
2317 | else if (siz1 != SIZE_BYTE) | |
2318 | { | |
2319 | if (siz1 != SIZE_UNSPEC) | |
2320 | as_warn (_("Forcing byte displacement")); | |
2321 | if (! issbyte (baseo)) | |
2322 | opP->error = _("byte displacement out of range"); | |
2323 | } | |
2324 | ||
2325 | break; | |
2326 | } | |
2327 | else if (siz1 == SIZE_UNSPEC | |
2328 | && opP->reg == PC | |
2329 | && isvar (&opP->disp) | |
2330 | && subs (&opP->disp) == NULL | |
2331 | #ifdef OBJ_ELF | |
2332 | /* If the displacement needs pic | |
2333 | relocation it cannot be relaxed. */ | |
2334 | && opP->disp.pic_reloc == pic_none | |
2335 | #endif | |
2336 | ) | |
2337 | { | |
2338 | /* The code in md_convert_frag_1 needs to be | |
2339 | able to adjust nextword. Call frag_grow | |
2340 | to ensure that we have enough space in | |
2341 | the frag obstack to make all the bytes | |
2342 | contiguous. */ | |
2343 | frag_grow (14); | |
8a104df9 KH |
2344 | nextword += baseo & 0xff; |
2345 | addword (nextword); | |
2346 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2347 | TAB (PCINDEX, SZ_UNDEF)); | |
252b5132 RH |
2348 | |
2349 | break; | |
8a104df9 | 2350 | } |
252b5132 RH |
2351 | } |
2352 | } | |
2353 | else | |
2354 | { | |
36759679 | 2355 | nextword |= 0x40; /* No index reg. */ |
252b5132 RH |
2356 | if (opP->index.reg >= ZDATA0 |
2357 | && opP->index.reg <= ZDATA7) | |
2358 | nextword |= (opP->index.reg - ZDATA0) << 12; | |
2359 | else if (opP->index.reg >= ZADDR0 | |
2360 | || opP->index.reg <= ZADDR7) | |
2361 | nextword |= (opP->index.reg - ZADDR0 + 8) << 12; | |
2362 | } | |
2363 | ||
2364 | /* It isn't simple. */ | |
2365 | ||
2366 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2367 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2368 | opP->error = |
2369 | _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2370 | ||
2371 | nextword |= 0x100; | |
2372 | /* If the guy specified a width, we assume that it is | |
2373 | wide enough. Maybe it isn't. If so, we lose. */ | |
2374 | switch (siz1) | |
2375 | { | |
2376 | case SIZE_UNSPEC: | |
2377 | if (isvar (&opP->disp) | |
2378 | ? m68k_rel32 | |
2379 | : ! issword (baseo)) | |
2380 | { | |
2381 | siz1 = SIZE_LONG; | |
2382 | nextword |= 0x30; | |
2383 | } | |
2384 | else if (! isvar (&opP->disp) && baseo == 0) | |
2385 | nextword |= 0x10; | |
2386 | else | |
2387 | { | |
2388 | nextword |= 0x20; | |
2389 | siz1 = SIZE_WORD; | |
2390 | } | |
2391 | break; | |
2392 | case SIZE_BYTE: | |
2393 | as_warn (_(":b not permitted; defaulting to :w")); | |
2394 | /* Fall through. */ | |
2395 | case SIZE_WORD: | |
2396 | nextword |= 0x20; | |
2397 | break; | |
2398 | case SIZE_LONG: | |
2399 | nextword |= 0x30; | |
2400 | break; | |
2401 | } | |
2402 | ||
67c1ffbe | 2403 | /* Figure out inner displacement stuff. */ |
252b5132 RH |
2404 | if (opP->mode == POST || opP->mode == PRE) |
2405 | { | |
2406 | if (cpu_of_arch (current_architecture) & cpu32) | |
2407 | opP->error = _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2408 | switch (siz2) | |
2409 | { | |
2410 | case SIZE_UNSPEC: | |
2411 | if (isvar (&opP->odisp) | |
2412 | ? m68k_rel32 | |
2413 | : ! issword (outro)) | |
2414 | { | |
2415 | siz2 = SIZE_LONG; | |
2416 | nextword |= 0x3; | |
2417 | } | |
2418 | else if (! isvar (&opP->odisp) && outro == 0) | |
2419 | nextword |= 0x1; | |
2420 | else | |
2421 | { | |
2422 | nextword |= 0x2; | |
2423 | siz2 = SIZE_WORD; | |
2424 | } | |
2425 | break; | |
2426 | case 1: | |
2427 | as_warn (_(":b not permitted; defaulting to :w")); | |
2428 | /* Fall through. */ | |
2429 | case 2: | |
2430 | nextword |= 0x2; | |
2431 | break; | |
2432 | case 3: | |
2433 | nextword |= 0x3; | |
2434 | break; | |
2435 | } | |
2436 | if (opP->mode == POST | |
2437 | && (nextword & 0x40) == 0) | |
2438 | nextword |= 0x04; | |
2439 | } | |
2440 | addword (nextword); | |
2441 | ||
2442 | if (siz1 != SIZE_UNSPEC && isvar (&opP->disp)) | |
2443 | { | |
2444 | if (opP->reg == PC || opP->reg == ZPC) | |
2445 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2); | |
2446 | else | |
2447 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0); | |
2448 | } | |
2449 | if (siz1 == SIZE_LONG) | |
2450 | addword (baseo >> 16); | |
2451 | if (siz1 != SIZE_UNSPEC) | |
2452 | addword (baseo); | |
2453 | ||
2454 | if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp)) | |
2455 | add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0); | |
2456 | if (siz2 == SIZE_LONG) | |
2457 | addword (outro >> 16); | |
2458 | if (siz2 != SIZE_UNSPEC) | |
2459 | addword (outro); | |
2460 | ||
2461 | break; | |
2462 | ||
2463 | case ABSL: | |
3e602632 | 2464 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2465 | switch (opP->disp.size) |
2466 | { | |
2467 | default: | |
2468 | abort (); | |
2469 | case SIZE_UNSPEC: | |
2470 | if (!isvar (&opP->disp) && issword (offs (&opP->disp))) | |
2471 | { | |
2472 | tmpreg = 0x38; /* 7.0 */ | |
2473 | addword (nextword); | |
2474 | break; | |
2475 | } | |
252b5132 RH |
2476 | if (isvar (&opP->disp) |
2477 | && !subs (&opP->disp) | |
2478 | && adds (&opP->disp) | |
2479 | #ifdef OBJ_ELF | |
2480 | /* If the displacement needs pic relocation it | |
2481 | cannot be relaxed. */ | |
2482 | && opP->disp.pic_reloc == pic_none | |
2483 | #endif | |
252b5132 RH |
2484 | && !flag_long_jumps |
2485 | && !strchr ("~%&$?", s[0])) | |
2486 | { | |
2487 | tmpreg = 0x3A; /* 7.2 */ | |
2488 | add_frag (adds (&opP->disp), | |
2489 | offs (&opP->disp), | |
151337e8 | 2490 | TAB (ABSTOPCREL, SZ_UNDEF)); |
252b5132 RH |
2491 | break; |
2492 | } | |
36759679 | 2493 | /* Fall through into long. */ |
252b5132 RH |
2494 | case SIZE_LONG: |
2495 | if (isvar (&opP->disp)) | |
2496 | add_fix ('l', &opP->disp, 0, 0); | |
2497 | ||
2498 | tmpreg = 0x39;/* 7.1 mode */ | |
2499 | addword (nextword >> 16); | |
2500 | addword (nextword); | |
2501 | break; | |
2502 | ||
2503 | case SIZE_BYTE: | |
2504 | as_bad (_("unsupported byte value; use a different suffix")); | |
2505 | /* Fall through. */ | |
36759679 NC |
2506 | |
2507 | case SIZE_WORD: | |
252b5132 RH |
2508 | if (isvar (&opP->disp)) |
2509 | add_fix ('w', &opP->disp, 0, 0); | |
2510 | ||
2511 | tmpreg = 0x38;/* 7.0 mode */ | |
2512 | addword (nextword); | |
2513 | break; | |
2514 | } | |
2515 | break; | |
2516 | case CONTROL: | |
2517 | case FPREG: | |
2518 | default: | |
2519 | as_bad (_("unknown/incorrect operand")); | |
bc805888 | 2520 | /* abort (); */ |
252b5132 RH |
2521 | } |
2522 | install_gen_operand (s[1], tmpreg); | |
2523 | break; | |
2524 | ||
2525 | case '#': | |
2526 | case '^': | |
2527 | switch (s[1]) | |
2528 | { /* JF: I hate floating point! */ | |
2529 | case 'j': | |
2530 | tmpreg = 70; | |
2531 | break; | |
2532 | case '8': | |
2533 | tmpreg = 20; | |
2534 | break; | |
2535 | case 'C': | |
2536 | tmpreg = 50; | |
2537 | break; | |
2538 | case '3': | |
2539 | default: | |
3e602632 | 2540 | tmpreg = 90; |
252b5132 RH |
2541 | break; |
2542 | } | |
2543 | tmpreg = get_num (&opP->disp, tmpreg); | |
2544 | if (isvar (&opP->disp)) | |
2545 | add_fix (s[1], &opP->disp, 0, 0); | |
2546 | switch (s[1]) | |
2547 | { | |
2548 | case 'b': /* Danger: These do no check for | |
2549 | certain types of overflow. | |
2550 | user beware! */ | |
2551 | if (!isbyte (tmpreg)) | |
2552 | opP->error = _("out of range"); | |
2553 | insop (tmpreg, opcode); | |
2554 | if (isvar (&opP->disp)) | |
2555 | the_ins.reloc[the_ins.nrel - 1].n = | |
2556 | (opcode->m_codenum) * 2 + 1; | |
2557 | break; | |
2558 | case 'B': | |
2559 | if (!issbyte (tmpreg)) | |
2560 | opP->error = _("out of range"); | |
2561 | the_ins.opcode[the_ins.numo - 1] |= tmpreg & 0xff; | |
2562 | if (isvar (&opP->disp)) | |
2563 | the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1; | |
2564 | break; | |
2565 | case 'w': | |
2566 | if (!isword (tmpreg)) | |
2567 | opP->error = _("out of range"); | |
2568 | insop (tmpreg, opcode); | |
2569 | if (isvar (&opP->disp)) | |
2570 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2571 | break; | |
2572 | case 'W': | |
2573 | if (!issword (tmpreg)) | |
2574 | opP->error = _("out of range"); | |
2575 | insop (tmpreg, opcode); | |
2576 | if (isvar (&opP->disp)) | |
2577 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2578 | break; | |
2579 | case 'l': | |
2580 | /* Because of the way insop works, we put these two out | |
2581 | backwards. */ | |
2582 | insop (tmpreg, opcode); | |
2583 | insop (tmpreg >> 16, opcode); | |
2584 | if (isvar (&opP->disp)) | |
2585 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2586 | break; | |
2587 | case '3': | |
2588 | tmpreg &= 0xFF; | |
2589 | case '8': | |
2590 | case 'C': | |
2591 | case 'j': | |
2592 | install_operand (s[1], tmpreg); | |
2593 | break; | |
2594 | default: | |
2595 | abort (); | |
2596 | } | |
2597 | break; | |
2598 | ||
2599 | case '+': | |
2600 | case '-': | |
2601 | case 'A': | |
2602 | case 'a': | |
2603 | install_operand (s[1], opP->reg - ADDR); | |
2604 | break; | |
2605 | ||
2606 | case 'B': | |
3e602632 | 2607 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2608 | switch (s[1]) |
2609 | { | |
2610 | case 'B': | |
8390138c | 2611 | add_fix ('B', &opP->disp, 1, -1); |
252b5132 RH |
2612 | break; |
2613 | case 'W': | |
2614 | add_fix ('w', &opP->disp, 1, 0); | |
2615 | addword (0); | |
2616 | break; | |
2617 | case 'L': | |
2618 | long_branch: | |
151337e8 | 2619 | if (! HAVE_LONG_BRANCH (current_architecture)) |
81d4177b | 2620 | as_warn (_("Can't use long branches on 68000/68010/5200")); |
151337e8 | 2621 | the_ins.opcode[0] |= 0xff; |
252b5132 RH |
2622 | add_fix ('l', &opP->disp, 1, 0); |
2623 | addword (0); | |
2624 | addword (0); | |
2625 | break; | |
2626 | case 'g': | |
36759679 | 2627 | if (subs (&opP->disp)) /* We can't relax it. */ |
252b5132 RH |
2628 | goto long_branch; |
2629 | ||
2630 | #ifdef OBJ_ELF | |
2631 | /* If the displacement needs pic relocation it cannot be | |
2632 | relaxed. */ | |
2633 | if (opP->disp.pic_reloc != pic_none) | |
2634 | goto long_branch; | |
2635 | #endif | |
252b5132 | 2636 | /* This could either be a symbol, or an absolute |
151337e8 NC |
2637 | address. If it's an absolute address, turn it into |
2638 | an absolute jump right here and keep it out of the | |
2639 | relaxer. */ | |
2640 | if (adds (&opP->disp) == 0) | |
2641 | { | |
2642 | if (the_ins.opcode[0] == 0x6000) /* jbra */ | |
18566f55 | 2643 | the_ins.opcode[0] = 0x4EF9; |
151337e8 | 2644 | else if (the_ins.opcode[0] == 0x6100) /* jbsr */ |
18566f55 | 2645 | the_ins.opcode[0] = 0x4EB9; |
151337e8 NC |
2646 | else /* jCC */ |
2647 | { | |
2648 | the_ins.opcode[0] ^= 0x0100; | |
2649 | the_ins.opcode[0] |= 0x0006; | |
18566f55 | 2650 | addword (0x4EF9); |
151337e8 NC |
2651 | } |
2652 | add_fix ('l', &opP->disp, 0, 0); | |
2653 | addword (0); | |
2654 | addword (0); | |
2655 | break; | |
2656 | } | |
2657 | ||
2658 | /* Now we know it's going into the relaxer. Now figure | |
2659 | out which mode. We try in this order of preference: | |
2660 | long branch, absolute jump, byte/word branches only. */ | |
2661 | if (HAVE_LONG_BRANCH (current_architecture)) | |
252b5132 | 2662 | add_frag (adds (&opP->disp), offs (&opP->disp), |
151337e8 NC |
2663 | TAB (BRANCHBWL, SZ_UNDEF)); |
2664 | else if (! flag_keep_pcrel) | |
2665 | { | |
2666 | if ((the_ins.opcode[0] == 0x6000) | |
2667 | || (the_ins.opcode[0] == 0x6100)) | |
2668 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2669 | TAB (BRABSJUNC, SZ_UNDEF)); | |
2670 | else | |
2671 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2672 | TAB (BRABSJCOND, SZ_UNDEF)); | |
2673 | } | |
252b5132 RH |
2674 | else |
2675 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
151337e8 | 2676 | TAB (BRANCHBW, SZ_UNDEF)); |
252b5132 RH |
2677 | break; |
2678 | case 'w': | |
2679 | if (isvar (&opP->disp)) | |
2680 | { | |
151337e8 NC |
2681 | /* Check for DBcc instructions. We can relax them, |
2682 | but only if we have long branches and/or absolute | |
2683 | jumps. */ | |
2684 | if (((the_ins.opcode[0] & 0xf0f8) == 0x50c8) | |
2685 | && (HAVE_LONG_BRANCH (current_architecture) | |
2686 | || (! flag_keep_pcrel))) | |
252b5132 | 2687 | { |
151337e8 NC |
2688 | if (HAVE_LONG_BRANCH (current_architecture)) |
2689 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2690 | TAB (DBCCLBR, SZ_UNDEF)); | |
2691 | else | |
2692 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2693 | TAB (DBCCABSJ, SZ_UNDEF)); | |
252b5132 RH |
2694 | break; |
2695 | } | |
252b5132 RH |
2696 | add_fix ('w', &opP->disp, 1, 0); |
2697 | } | |
2698 | addword (0); | |
2699 | break; | |
36759679 | 2700 | case 'C': /* Fixed size LONG coproc branches. */ |
252b5132 RH |
2701 | add_fix ('l', &opP->disp, 1, 0); |
2702 | addword (0); | |
2703 | addword (0); | |
2704 | break; | |
36759679 | 2705 | case 'c': /* Var size Coprocesssor branches. */ |
151337e8 | 2706 | if (subs (&opP->disp) || (adds (&opP->disp) == 0)) |
252b5132 | 2707 | { |
252b5132 RH |
2708 | the_ins.opcode[the_ins.numo - 1] |= 0x40; |
2709 | add_fix ('l', &opP->disp, 1, 0); | |
2710 | addword (0); | |
2711 | addword (0); | |
2712 | } | |
151337e8 NC |
2713 | else |
2714 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2715 | TAB (FBRANCH, SZ_UNDEF)); | |
252b5132 RH |
2716 | break; |
2717 | default: | |
2718 | abort (); | |
2719 | } | |
2720 | break; | |
2721 | ||
36759679 | 2722 | case 'C': /* Ignore it. */ |
252b5132 RH |
2723 | break; |
2724 | ||
36759679 | 2725 | case 'd': /* JF this is a kludge. */ |
252b5132 | 2726 | install_operand ('s', opP->reg - ADDR); |
3e602632 | 2727 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2728 | if (!issword (tmpreg)) |
2729 | { | |
2730 | as_warn (_("Expression out of range, using 0")); | |
2731 | tmpreg = 0; | |
2732 | } | |
2733 | addword (tmpreg); | |
2734 | break; | |
2735 | ||
2736 | case 'D': | |
2737 | install_operand (s[1], opP->reg - DATA); | |
2738 | break; | |
2739 | ||
36759679 | 2740 | case 'E': /* Ignore it. */ |
6da466c7 ILT |
2741 | break; |
2742 | ||
252b5132 RH |
2743 | case 'F': |
2744 | install_operand (s[1], opP->reg - FP0); | |
2745 | break; | |
2746 | ||
36759679 | 2747 | case 'G': /* Ignore it. */ |
6da466c7 ILT |
2748 | case 'H': |
2749 | break; | |
2750 | ||
252b5132 RH |
2751 | case 'I': |
2752 | tmpreg = opP->reg - COP0; | |
2753 | install_operand (s[1], tmpreg); | |
2754 | break; | |
2755 | ||
36759679 | 2756 | case 'J': /* JF foo. */ |
252b5132 RH |
2757 | switch (opP->reg) |
2758 | { | |
2759 | case SFC: | |
2760 | tmpreg = 0x000; | |
2761 | break; | |
2762 | case DFC: | |
2763 | tmpreg = 0x001; | |
2764 | break; | |
2765 | case CACR: | |
2766 | tmpreg = 0x002; | |
2767 | break; | |
2768 | case TC: | |
2769 | tmpreg = 0x003; | |
2770 | break; | |
3e602632 | 2771 | case ACR0: |
252b5132 RH |
2772 | case ITT0: |
2773 | tmpreg = 0x004; | |
2774 | break; | |
3e602632 | 2775 | case ACR1: |
252b5132 RH |
2776 | case ITT1: |
2777 | tmpreg = 0x005; | |
2778 | break; | |
3e602632 | 2779 | case ACR2: |
252b5132 RH |
2780 | case DTT0: |
2781 | tmpreg = 0x006; | |
2782 | break; | |
3e602632 | 2783 | case ACR3: |
252b5132 RH |
2784 | case DTT1: |
2785 | tmpreg = 0x007; | |
2786 | break; | |
2787 | case BUSCR: | |
2788 | tmpreg = 0x008; | |
2789 | break; | |
2790 | ||
2791 | case USP: | |
2792 | tmpreg = 0x800; | |
2793 | break; | |
2794 | case VBR: | |
2795 | tmpreg = 0x801; | |
2796 | break; | |
2797 | case CAAR: | |
2798 | tmpreg = 0x802; | |
2799 | break; | |
2800 | case MSP: | |
2801 | tmpreg = 0x803; | |
2802 | break; | |
2803 | case ISP: | |
2804 | tmpreg = 0x804; | |
2805 | break; | |
2806 | case MMUSR: | |
2807 | tmpreg = 0x805; | |
2808 | break; | |
2809 | case URP: | |
2810 | tmpreg = 0x806; | |
2811 | break; | |
2812 | case SRP: | |
2813 | tmpreg = 0x807; | |
2814 | break; | |
2815 | case PCR: | |
2816 | tmpreg = 0x808; | |
2817 | break; | |
2818 | case ROMBAR: | |
2819 | tmpreg = 0xC00; | |
2820 | break; | |
3e602632 NC |
2821 | case ROMBAR1: |
2822 | tmpreg = 0xC01; | |
2823 | break; | |
2824 | case FLASHBAR: | |
252b5132 RH |
2825 | case RAMBAR0: |
2826 | tmpreg = 0xC04; | |
2827 | break; | |
3e602632 | 2828 | case RAMBAR: |
252b5132 RH |
2829 | case RAMBAR1: |
2830 | tmpreg = 0xC05; | |
2831 | break; | |
3e602632 NC |
2832 | case MPCR: |
2833 | tmpreg = 0xC0C; | |
2834 | break; | |
2835 | case EDRAMBAR: | |
2836 | tmpreg = 0xC0D; | |
2837 | break; | |
2838 | case MBAR0: | |
2839 | case SECMBAR: | |
2840 | tmpreg = 0xC0E; | |
2841 | break; | |
2842 | case MBAR1: | |
252b5132 RH |
2843 | case MBAR: |
2844 | tmpreg = 0xC0F; | |
2845 | break; | |
3e602632 NC |
2846 | case PCR1U0: |
2847 | tmpreg = 0xD02; | |
2848 | break; | |
2849 | case PCR1L0: | |
2850 | tmpreg = 0xD03; | |
2851 | break; | |
2852 | case PCR2U0: | |
2853 | tmpreg = 0xD04; | |
2854 | break; | |
2855 | case PCR2L0: | |
2856 | tmpreg = 0xD05; | |
2857 | break; | |
2858 | case PCR3U0: | |
2859 | tmpreg = 0xD06; | |
2860 | break; | |
2861 | case PCR3L0: | |
2862 | tmpreg = 0xD07; | |
2863 | break; | |
2864 | case PCR1L1: | |
2865 | tmpreg = 0xD0A; | |
2866 | break; | |
2867 | case PCR1U1: | |
2868 | tmpreg = 0xD0B; | |
2869 | break; | |
2870 | case PCR2L1: | |
2871 | tmpreg = 0xD0C; | |
2872 | break; | |
2873 | case PCR2U1: | |
2874 | tmpreg = 0xD0D; | |
2875 | break; | |
2876 | case PCR3L1: | |
2877 | tmpreg = 0xD0E; | |
2878 | break; | |
2879 | case PCR3U1: | |
2880 | tmpreg = 0xD0F; | |
2881 | break; | |
252b5132 RH |
2882 | default: |
2883 | abort (); | |
2884 | } | |
2885 | install_operand (s[1], tmpreg); | |
2886 | break; | |
2887 | ||
2888 | case 'k': | |
2889 | tmpreg = get_num (&opP->disp, 55); | |
2890 | install_operand (s[1], tmpreg & 0x7f); | |
2891 | break; | |
2892 | ||
2893 | case 'l': | |
2894 | tmpreg = opP->mask; | |
2895 | if (s[1] == 'w') | |
2896 | { | |
2897 | if (tmpreg & 0x7FF0000) | |
2898 | as_bad (_("Floating point register in register list")); | |
2899 | insop (reverse_16_bits (tmpreg), opcode); | |
2900 | } | |
2901 | else | |
2902 | { | |
2903 | if (tmpreg & 0x700FFFF) | |
2904 | as_bad (_("Wrong register in floating-point reglist")); | |
2905 | install_operand (s[1], reverse_8_bits (tmpreg >> 16)); | |
2906 | } | |
2907 | break; | |
2908 | ||
2909 | case 'L': | |
2910 | tmpreg = opP->mask; | |
2911 | if (s[1] == 'w') | |
2912 | { | |
2913 | if (tmpreg & 0x7FF0000) | |
2914 | as_bad (_("Floating point register in register list")); | |
2915 | insop (tmpreg, opcode); | |
2916 | } | |
2917 | else if (s[1] == '8') | |
2918 | { | |
2919 | if (tmpreg & 0x0FFFFFF) | |
2920 | as_bad (_("incorrect register in reglist")); | |
2921 | install_operand (s[1], tmpreg >> 24); | |
2922 | } | |
2923 | else | |
2924 | { | |
2925 | if (tmpreg & 0x700FFFF) | |
2926 | as_bad (_("wrong register in floating-point reglist")); | |
2927 | else | |
2928 | install_operand (s[1], tmpreg >> 16); | |
2929 | } | |
2930 | break; | |
2931 | ||
2932 | case 'M': | |
2933 | install_operand (s[1], get_num (&opP->disp, 60)); | |
2934 | break; | |
2935 | ||
2936 | case 'O': | |
2937 | tmpreg = ((opP->mode == DREG) | |
8fce3f5e | 2938 | ? 0x20 + (int) (opP->reg - DATA) |
252b5132 RH |
2939 | : (get_num (&opP->disp, 40) & 0x1F)); |
2940 | install_operand (s[1], tmpreg); | |
2941 | break; | |
2942 | ||
2943 | case 'Q': | |
2944 | tmpreg = get_num (&opP->disp, 10); | |
2945 | if (tmpreg == 8) | |
2946 | tmpreg = 0; | |
2947 | install_operand (s[1], tmpreg); | |
2948 | break; | |
2949 | ||
2950 | case 'R': | |
2951 | /* This depends on the fact that ADDR registers are eight | |
2952 | more than their corresponding DATA regs, so the result | |
36759679 | 2953 | will have the ADDR_REG bit set. */ |
252b5132 RH |
2954 | install_operand (s[1], opP->reg - DATA); |
2955 | break; | |
2956 | ||
2957 | case 'r': | |
2958 | if (opP->mode == AINDR) | |
2959 | install_operand (s[1], opP->reg - DATA); | |
2960 | else | |
2961 | install_operand (s[1], opP->index.reg - DATA); | |
2962 | break; | |
2963 | ||
2964 | case 's': | |
2965 | if (opP->reg == FPI) | |
2966 | tmpreg = 0x1; | |
2967 | else if (opP->reg == FPS) | |
2968 | tmpreg = 0x2; | |
2969 | else if (opP->reg == FPC) | |
2970 | tmpreg = 0x4; | |
2971 | else | |
2972 | abort (); | |
2973 | install_operand (s[1], tmpreg); | |
2974 | break; | |
2975 | ||
36759679 | 2976 | case 'S': /* Ignore it. */ |
252b5132 RH |
2977 | break; |
2978 | ||
2979 | case 'T': | |
2980 | install_operand (s[1], get_num (&opP->disp, 30)); | |
2981 | break; | |
2982 | ||
36759679 | 2983 | case 'U': /* Ignore it. */ |
252b5132 RH |
2984 | break; |
2985 | ||
2986 | case 'c': | |
2987 | switch (opP->reg) | |
2988 | { | |
2989 | case NC: | |
2990 | tmpreg = 0; | |
2991 | break; | |
2992 | case DC: | |
2993 | tmpreg = 1; | |
2994 | break; | |
2995 | case IC: | |
2996 | tmpreg = 2; | |
2997 | break; | |
2998 | case BC: | |
2999 | tmpreg = 3; | |
3000 | break; | |
3001 | default: | |
3002 | as_fatal (_("failed sanity check")); | |
36759679 | 3003 | } /* switch on cache token. */ |
252b5132 RH |
3004 | install_operand (s[1], tmpreg); |
3005 | break; | |
3006 | #ifndef NO_68851 | |
92774660 | 3007 | /* JF: These are out of order, I fear. */ |
252b5132 RH |
3008 | case 'f': |
3009 | switch (opP->reg) | |
3010 | { | |
3011 | case SFC: | |
3012 | tmpreg = 0; | |
3013 | break; | |
3014 | case DFC: | |
3015 | tmpreg = 1; | |
3016 | break; | |
3017 | default: | |
3018 | abort (); | |
3019 | } | |
3020 | install_operand (s[1], tmpreg); | |
3021 | break; | |
3022 | ||
3023 | case '0': | |
3024 | case '1': | |
3025 | case '2': | |
3026 | switch (opP->reg) | |
3027 | { | |
3028 | case TC: | |
3029 | tmpreg = 0; | |
3030 | break; | |
3031 | case CAL: | |
3032 | tmpreg = 4; | |
3033 | break; | |
3034 | case VAL: | |
3035 | tmpreg = 5; | |
3036 | break; | |
3037 | case SCC: | |
3038 | tmpreg = 6; | |
3039 | break; | |
3040 | case AC: | |
3041 | tmpreg = 7; | |
3042 | break; | |
3043 | default: | |
3044 | abort (); | |
3045 | } | |
3046 | install_operand (s[1], tmpreg); | |
3047 | break; | |
3048 | ||
3049 | case 'V': | |
3050 | if (opP->reg == VAL) | |
3051 | break; | |
3052 | abort (); | |
3053 | ||
3054 | case 'W': | |
3055 | switch (opP->reg) | |
3056 | { | |
3057 | case DRP: | |
3058 | tmpreg = 1; | |
3059 | break; | |
3060 | case SRP: | |
3061 | tmpreg = 2; | |
3062 | break; | |
3063 | case CRP: | |
3064 | tmpreg = 3; | |
3065 | break; | |
3066 | default: | |
3067 | abort (); | |
3068 | } | |
3069 | install_operand (s[1], tmpreg); | |
3070 | break; | |
3071 | ||
3072 | case 'X': | |
3073 | switch (opP->reg) | |
3074 | { | |
3075 | case BAD: | |
3076 | case BAD + 1: | |
3077 | case BAD + 2: | |
3078 | case BAD + 3: | |
3079 | case BAD + 4: | |
3080 | case BAD + 5: | |
3081 | case BAD + 6: | |
3082 | case BAD + 7: | |
3083 | tmpreg = (4 << 10) | ((opP->reg - BAD) << 2); | |
3084 | break; | |
3085 | ||
3086 | case BAC: | |
3087 | case BAC + 1: | |
3088 | case BAC + 2: | |
3089 | case BAC + 3: | |
3090 | case BAC + 4: | |
3091 | case BAC + 5: | |
3092 | case BAC + 6: | |
3093 | case BAC + 7: | |
3094 | tmpreg = (5 << 10) | ((opP->reg - BAC) << 2); | |
3095 | break; | |
3096 | ||
3097 | default: | |
3098 | abort (); | |
3099 | } | |
3100 | install_operand (s[1], tmpreg); | |
3101 | break; | |
3102 | case 'Y': | |
3103 | know (opP->reg == PSR); | |
3104 | break; | |
3105 | case 'Z': | |
3106 | know (opP->reg == PCSR); | |
3107 | break; | |
3108 | #endif /* m68851 */ | |
3109 | case '3': | |
3110 | switch (opP->reg) | |
3111 | { | |
3112 | case TT0: | |
3113 | tmpreg = 2; | |
3114 | break; | |
3115 | case TT1: | |
3116 | tmpreg = 3; | |
3117 | break; | |
3118 | default: | |
3119 | abort (); | |
3120 | } | |
3121 | install_operand (s[1], tmpreg); | |
3122 | break; | |
3123 | case 't': | |
3124 | tmpreg = get_num (&opP->disp, 20); | |
3125 | install_operand (s[1], tmpreg); | |
3126 | break; | |
36759679 | 3127 | case '_': /* used only for move16 absolute 32-bit address. */ |
252b5132 RH |
3128 | if (isvar (&opP->disp)) |
3129 | add_fix ('l', &opP->disp, 0, 0); | |
3e602632 | 3130 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
3131 | addword (tmpreg >> 16); |
3132 | addword (tmpreg & 0xFFFF); | |
3133 | break; | |
6da466c7 ILT |
3134 | case 'u': |
3135 | install_operand (s[1], opP->reg - DATA0L); | |
3136 | opP->reg -= (DATA0L); | |
36759679 | 3137 | opP->reg &= 0x0F; /* remove upper/lower bit. */ |
6da466c7 | 3138 | break; |
3e602632 NC |
3139 | case 'x': |
3140 | tmpreg = get_num (&opP->disp, 80); | |
3141 | if (tmpreg == -1) | |
3142 | tmpreg = 0; | |
3143 | install_operand (s[1], tmpreg); | |
3144 | break; | |
252b5132 RH |
3145 | default: |
3146 | abort (); | |
3147 | } | |
3148 | } | |
3149 | ||
3150 | /* By the time whe get here (FINALLY) the_ins contains the complete | |
92774660 | 3151 | instruction, ready to be emitted. . . */ |
252b5132 RH |
3152 | } |
3153 | ||
3154 | static int | |
3155 | reverse_16_bits (in) | |
3156 | int in; | |
3157 | { | |
3158 | int out = 0; | |
3159 | int n; | |
3160 | ||
3161 | static int mask[16] = | |
3162 | { | |
3163 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3164 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 | |
3165 | }; | |
3166 | for (n = 0; n < 16; n++) | |
3167 | { | |
3168 | if (in & mask[n]) | |
3169 | out |= mask[15 - n]; | |
3170 | } | |
3171 | return out; | |
3172 | } /* reverse_16_bits() */ | |
3173 | ||
3174 | static int | |
3175 | reverse_8_bits (in) | |
3176 | int in; | |
3177 | { | |
3178 | int out = 0; | |
3179 | int n; | |
3180 | ||
3181 | static int mask[8] = | |
3182 | { | |
3183 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3184 | }; | |
3185 | ||
3186 | for (n = 0; n < 8; n++) | |
3187 | { | |
3188 | if (in & mask[n]) | |
3189 | out |= mask[7 - n]; | |
3190 | } | |
3191 | return out; | |
3192 | } /* reverse_8_bits() */ | |
3193 | ||
3194 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
3195 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
3196 | is the subtype of the frag to be generated; its primary type is | |
3197 | rs_machine_dependent. | |
3198 | ||
3199 | The TYPE parameter is also used by md_convert_frag_1 and | |
3200 | md_estimate_size_before_relax. The appropriate type of fixup will | |
3201 | be emitted by md_convert_frag_1. | |
3202 | ||
3203 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
3204 | static void | |
3205 | install_operand (mode, val) | |
3206 | int mode; | |
3207 | int val; | |
3208 | { | |
3209 | switch (mode) | |
3210 | { | |
3211 | case 's': | |
36759679 | 3212 | the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge. */ |
252b5132 RH |
3213 | break; |
3214 | case 'd': | |
3215 | the_ins.opcode[0] |= val << 9; | |
3216 | break; | |
3217 | case '1': | |
3218 | the_ins.opcode[1] |= val << 12; | |
3219 | break; | |
3220 | case '2': | |
3221 | the_ins.opcode[1] |= val << 6; | |
3222 | break; | |
3223 | case '3': | |
3224 | the_ins.opcode[1] |= val; | |
3225 | break; | |
3226 | case '4': | |
3227 | the_ins.opcode[2] |= val << 12; | |
3228 | break; | |
3229 | case '5': | |
3230 | the_ins.opcode[2] |= val << 6; | |
3231 | break; | |
3232 | case '6': | |
3233 | /* DANGER! This is a hack to force cas2l and cas2w cmds to be | |
3234 | three words long! */ | |
3235 | the_ins.numo++; | |
3236 | the_ins.opcode[2] |= val; | |
3237 | break; | |
3238 | case '7': | |
3239 | the_ins.opcode[1] |= val << 7; | |
3240 | break; | |
3241 | case '8': | |
3242 | the_ins.opcode[1] |= val << 10; | |
3243 | break; | |
3244 | #ifndef NO_68851 | |
3245 | case '9': | |
3246 | the_ins.opcode[1] |= val << 5; | |
3247 | break; | |
3248 | #endif | |
3249 | ||
3250 | case 't': | |
3251 | the_ins.opcode[1] |= (val << 10) | (val << 7); | |
3252 | break; | |
3253 | case 'D': | |
3254 | the_ins.opcode[1] |= (val << 12) | val; | |
3255 | break; | |
3256 | case 'g': | |
3257 | the_ins.opcode[0] |= val = 0xff; | |
3258 | break; | |
3259 | case 'i': | |
3260 | the_ins.opcode[0] |= val << 9; | |
3261 | break; | |
3262 | case 'C': | |
3263 | the_ins.opcode[1] |= val; | |
3264 | break; | |
3265 | case 'j': | |
3266 | the_ins.opcode[1] |= val; | |
36759679 | 3267 | the_ins.numo++; /* What a hack. */ |
252b5132 RH |
3268 | break; |
3269 | case 'k': | |
3270 | the_ins.opcode[1] |= val << 4; | |
3271 | break; | |
3272 | case 'b': | |
3273 | case 'w': | |
3274 | case 'W': | |
3275 | case 'l': | |
3276 | break; | |
3277 | case 'e': | |
3278 | the_ins.opcode[0] |= (val << 6); | |
3279 | break; | |
3280 | case 'L': | |
3281 | the_ins.opcode[1] = (val >> 16); | |
3282 | the_ins.opcode[2] = val & 0xffff; | |
3283 | break; | |
6da466c7 ILT |
3284 | case 'm': |
3285 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); | |
3286 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
3287 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3288 | break; | |
3289 | case 'n': | |
3290 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); | |
3291 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
3292 | break; | |
3293 | case 'o': | |
3294 | the_ins.opcode[1] |= val << 12; | |
3295 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3296 | break; | |
3297 | case 'M': | |
3298 | the_ins.opcode[0] |= (val & 0xF); | |
3299 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3300 | break; | |
3301 | case 'N': | |
3302 | the_ins.opcode[1] |= (val & 0xF); | |
3303 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3304 | break; | |
3305 | case 'h': | |
3306 | the_ins.opcode[1] |= ((val != 1) << 10); | |
3307 | break; | |
252b5132 RH |
3308 | case 'c': |
3309 | default: | |
3310 | as_fatal (_("failed sanity check.")); | |
3311 | } | |
3312 | } /* install_operand() */ | |
3313 | ||
3314 | static void | |
3315 | install_gen_operand (mode, val) | |
3316 | int mode; | |
3317 | int val; | |
3318 | { | |
3319 | switch (mode) | |
3320 | { | |
3321 | case 's': | |
3322 | the_ins.opcode[0] |= val; | |
3323 | break; | |
3324 | case 'd': | |
3325 | /* This is a kludge!!! */ | |
3326 | the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3; | |
3327 | break; | |
3328 | case 'b': | |
3329 | case 'w': | |
3330 | case 'l': | |
3331 | case 'f': | |
3332 | case 'F': | |
3333 | case 'x': | |
3334 | case 'p': | |
3335 | the_ins.opcode[0] |= val; | |
3336 | break; | |
36759679 | 3337 | /* more stuff goes here. */ |
252b5132 RH |
3338 | default: |
3339 | as_fatal (_("failed sanity check.")); | |
3340 | } | |
3341 | } /* install_gen_operand() */ | |
3342 | ||
3343 | /* | |
3344 | * verify that we have some number of paren pairs, do m68k_ip_op(), and | |
3345 | * then deal with the bitfield hack. | |
3346 | */ | |
3347 | ||
3348 | static char * | |
3349 | crack_operand (str, opP) | |
3350 | register char *str; | |
3351 | register struct m68k_op *opP; | |
3352 | { | |
3353 | register int parens; | |
3354 | register int c; | |
3355 | register char *beg_str; | |
3356 | int inquote = 0; | |
3357 | ||
3358 | if (!str) | |
3359 | { | |
3360 | return str; | |
3361 | } | |
3362 | beg_str = str; | |
3363 | for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++) | |
3364 | { | |
3365 | if (! inquote) | |
3366 | { | |
3367 | if (*str == '(') | |
3368 | parens++; | |
3369 | else if (*str == ')') | |
3370 | { | |
3371 | if (!parens) | |
36759679 | 3372 | { /* ERROR. */ |
252b5132 RH |
3373 | opP->error = _("Extra )"); |
3374 | return str; | |
3375 | } | |
3376 | --parens; | |
3377 | } | |
3378 | } | |
3379 | if (flag_mri && *str == '\'') | |
3380 | inquote = ! inquote; | |
3381 | } | |
3382 | if (!*str && parens) | |
36759679 | 3383 | { /* ERROR. */ |
252b5132 RH |
3384 | opP->error = _("Missing )"); |
3385 | return str; | |
3386 | } | |
3387 | c = *str; | |
3388 | *str = '\0'; | |
3389 | if (m68k_ip_op (beg_str, opP) != 0) | |
3390 | { | |
3391 | *str = c; | |
3392 | return str; | |
3393 | } | |
3394 | *str = c; | |
3395 | if (c == '}') | |
36759679 | 3396 | c = *++str; /* JF bitfield hack. */ |
252b5132 RH |
3397 | if (c) |
3398 | { | |
3399 | c = *++str; | |
3400 | if (!c) | |
3401 | as_bad (_("Missing operand")); | |
3402 | } | |
3403 | ||
3404 | /* Detect MRI REG symbols and convert them to REGLSTs. */ | |
3405 | if (opP->mode == CONTROL && (int)opP->reg < 0) | |
3406 | { | |
3407 | opP->mode = REGLST; | |
3408 | opP->mask = ~(int)opP->reg; | |
3409 | opP->reg = 0; | |
3410 | } | |
3411 | ||
3412 | return str; | |
3413 | } | |
3414 | ||
3415 | /* This is the guts of the machine-dependent assembler. STR points to a | |
3416 | machine dependent instruction. This function is supposed to emit | |
3417 | the frags/bytes it assembles to. | |
3418 | */ | |
3419 | ||
3420 | static void | |
3421 | insert_reg (regname, regnum) | |
3422 | const char *regname; | |
3423 | int regnum; | |
3424 | { | |
3425 | char buf[100]; | |
3426 | int i; | |
3427 | ||
3428 | #ifdef REGISTER_PREFIX | |
3429 | if (!flag_reg_prefix_optional) | |
3430 | { | |
3431 | buf[0] = REGISTER_PREFIX; | |
3432 | strcpy (buf + 1, regname); | |
3433 | regname = buf; | |
3434 | } | |
3435 | #endif | |
3436 | ||
3437 | symbol_table_insert (symbol_new (regname, reg_section, regnum, | |
3438 | &zero_address_frag)); | |
3439 | ||
3440 | for (i = 0; regname[i]; i++) | |
3882b010 | 3441 | buf[i] = TOUPPER (regname[i]); |
252b5132 RH |
3442 | buf[i] = '\0'; |
3443 | ||
3444 | symbol_table_insert (symbol_new (buf, reg_section, regnum, | |
3445 | &zero_address_frag)); | |
3446 | } | |
3447 | ||
3448 | struct init_entry | |
3449 | { | |
3450 | const char *name; | |
3451 | int number; | |
3452 | }; | |
3453 | ||
3454 | static const struct init_entry init_table[] = | |
3455 | { | |
3456 | { "d0", DATA0 }, | |
3457 | { "d1", DATA1 }, | |
3458 | { "d2", DATA2 }, | |
3459 | { "d3", DATA3 }, | |
3460 | { "d4", DATA4 }, | |
3461 | { "d5", DATA5 }, | |
3462 | { "d6", DATA6 }, | |
3463 | { "d7", DATA7 }, | |
3464 | { "a0", ADDR0 }, | |
3465 | { "a1", ADDR1 }, | |
3466 | { "a2", ADDR2 }, | |
3467 | { "a3", ADDR3 }, | |
3468 | { "a4", ADDR4 }, | |
3469 | { "a5", ADDR5 }, | |
3470 | { "a6", ADDR6 }, | |
3471 | { "fp", ADDR6 }, | |
3472 | { "a7", ADDR7 }, | |
3473 | { "sp", ADDR7 }, | |
3474 | { "ssp", ADDR7 }, | |
3475 | { "fp0", FP0 }, | |
3476 | { "fp1", FP1 }, | |
3477 | { "fp2", FP2 }, | |
3478 | { "fp3", FP3 }, | |
3479 | { "fp4", FP4 }, | |
3480 | { "fp5", FP5 }, | |
3481 | { "fp6", FP6 }, | |
3482 | { "fp7", FP7 }, | |
3483 | { "fpi", FPI }, | |
3484 | { "fpiar", FPI }, | |
3485 | { "fpc", FPI }, | |
3486 | { "fps", FPS }, | |
3487 | { "fpsr", FPS }, | |
3488 | { "fpc", FPC }, | |
3489 | { "fpcr", FPC }, | |
3490 | { "control", FPC }, | |
3491 | { "status", FPS }, | |
3492 | { "iaddr", FPI }, | |
3493 | ||
3494 | { "cop0", COP0 }, | |
3495 | { "cop1", COP1 }, | |
3496 | { "cop2", COP2 }, | |
3497 | { "cop3", COP3 }, | |
3498 | { "cop4", COP4 }, | |
3499 | { "cop5", COP5 }, | |
3500 | { "cop6", COP6 }, | |
3501 | { "cop7", COP7 }, | |
3502 | { "pc", PC }, | |
3503 | { "zpc", ZPC }, | |
3504 | { "sr", SR }, | |
3505 | ||
3506 | { "ccr", CCR }, | |
3507 | { "cc", CCR }, | |
3508 | ||
6da466c7 ILT |
3509 | { "acc", ACC }, |
3510 | { "macsr", MACSR }, | |
3511 | { "mask", MASK }, | |
3512 | ||
36759679 NC |
3513 | /* Control registers. */ |
3514 | { "sfc", SFC }, /* Source Function Code. */ | |
252b5132 | 3515 | { "sfcr", SFC }, |
36759679 | 3516 | { "dfc", DFC }, /* Destination Function Code. */ |
252b5132 | 3517 | { "dfcr", DFC }, |
36759679 NC |
3518 | { "cacr", CACR }, /* Cache Control Register. */ |
3519 | { "caar", CAAR }, /* Cache Address Register. */ | |
252b5132 | 3520 | |
36759679 NC |
3521 | { "usp", USP }, /* User Stack Pointer. */ |
3522 | { "vbr", VBR }, /* Vector Base Register. */ | |
3523 | { "msp", MSP }, /* Master Stack Pointer. */ | |
3524 | { "isp", ISP }, /* Interrupt Stack Pointer. */ | |
252b5132 | 3525 | |
36759679 NC |
3526 | { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0. */ |
3527 | { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1. */ | |
3528 | { "dtt0", DTT0 }, /* Data Transparent Translation Register 0. */ | |
3529 | { "dtt1", DTT1 }, /* Data Transparent Translation Register 1. */ | |
252b5132 RH |
3530 | |
3531 | /* 68ec040 versions of same */ | |
36759679 NC |
3532 | { "iacr0", ITT0 }, /* Instruction Access Control Register 0. */ |
3533 | { "iacr1", ITT1 }, /* Instruction Access Control Register 0. */ | |
3534 | { "dacr0", DTT0 }, /* Data Access Control Register 0. */ | |
3535 | { "dacr1", DTT1 }, /* Data Access Control Register 0. */ | |
252b5132 RH |
3536 | |
3537 | /* mcf5200 versions of same. The ColdFire programmer's reference | |
3538 | manual indicated that the order is 2,3,0,1, but Ken Rose | |
3539 | <rose@netcom.com> says that 0,1,2,3 is the correct order. */ | |
3e602632 NC |
3540 | { "acr0", ACR0 }, /* Access Control Unit 0. */ |
3541 | { "acr1", ACR1 }, /* Access Control Unit 1. */ | |
3542 | { "acr2", ACR2 }, /* Access Control Unit 2. */ | |
3543 | { "acr3", ACR3 }, /* Access Control Unit 3. */ | |
252b5132 | 3544 | |
36759679 | 3545 | { "tc", TC }, /* MMU Translation Control Register. */ |
252b5132 RH |
3546 | { "tcr", TC }, |
3547 | ||
36759679 NC |
3548 | { "mmusr", MMUSR }, /* MMU Status Register. */ |
3549 | { "srp", SRP }, /* User Root Pointer. */ | |
3550 | { "urp", URP }, /* Supervisor Root Pointer. */ | |
252b5132 RH |
3551 | |
3552 | { "buscr", BUSCR }, | |
3553 | { "pcr", PCR }, | |
3554 | ||
36759679 NC |
3555 | { "rombar", ROMBAR }, /* ROM Base Address Register. */ |
3556 | { "rambar0", RAMBAR0 }, /* ROM Base Address Register. */ | |
3557 | { "rambar1", RAMBAR1 }, /* ROM Base Address Register. */ | |
3558 | { "mbar", MBAR }, /* Module Base Address Register. */ | |
3e602632 NC |
3559 | |
3560 | { "mbar0", MBAR0 }, /* mcfv4e registers. */ | |
3561 | { "mbar1", MBAR1 }, /* mcfv4e registers. */ | |
3562 | { "rombar0", ROMBAR }, /* mcfv4e registers. */ | |
3563 | { "rombar1", ROMBAR1 }, /* mcfv4e registers. */ | |
3564 | { "mpcr", MPCR }, /* mcfv4e registers. */ | |
3565 | { "edrambar", EDRAMBAR }, /* mcfv4e registers. */ | |
3566 | { "secmbar", SECMBAR }, /* mcfv4e registers. */ | |
3567 | { "asid", TC }, /* mcfv4e registers. */ | |
3568 | { "mmubar", BUSCR }, /* mcfv4e registers. */ | |
3569 | { "pcr1u0", PCR1U0 }, /* mcfv4e registers. */ | |
3570 | { "pcr1l0", PCR1L0 }, /* mcfv4e registers. */ | |
3571 | { "pcr2u0", PCR2U0 }, /* mcfv4e registers. */ | |
3572 | { "pcr2l0", PCR2L0 }, /* mcfv4e registers. */ | |
3573 | { "pcr3u0", PCR3U0 }, /* mcfv4e registers. */ | |
3574 | { "pcr3l0", PCR3L0 }, /* mcfv4e registers. */ | |
3575 | { "pcr1u1", PCR1U1 }, /* mcfv4e registers. */ | |
3576 | { "pcr1l1", PCR1L1 }, /* mcfv4e registers. */ | |
3577 | { "pcr2u1", PCR2U1 }, /* mcfv4e registers. */ | |
3578 | { "pcr2l1", PCR2L1 }, /* mcfv4e registers. */ | |
3579 | { "pcr3u1", PCR3U1 }, /* mcfv4e registers. */ | |
3580 | { "pcr3l1", PCR3L1 }, /* mcfv4e registers. */ | |
3581 | ||
3582 | { "flashbar", FLASHBAR }, /* mcf528x registers. */ | |
3583 | { "rambar", RAMBAR }, /* mcf528x registers. */ | |
36759679 | 3584 | /* End of control registers. */ |
252b5132 RH |
3585 | |
3586 | { "ac", AC }, | |
3587 | { "bc", BC }, | |
3588 | { "cal", CAL }, | |
3589 | { "crp", CRP }, | |
3590 | { "drp", DRP }, | |
3591 | { "pcsr", PCSR }, | |
3592 | { "psr", PSR }, | |
3593 | { "scc", SCC }, | |
3594 | { "val", VAL }, | |
3595 | { "bad0", BAD0 }, | |
3596 | { "bad1", BAD1 }, | |
3597 | { "bad2", BAD2 }, | |
3598 | { "bad3", BAD3 }, | |
3599 | { "bad4", BAD4 }, | |
3600 | { "bad5", BAD5 }, | |
3601 | { "bad6", BAD6 }, | |
3602 | { "bad7", BAD7 }, | |
3603 | { "bac0", BAC0 }, | |
3604 | { "bac1", BAC1 }, | |
3605 | { "bac2", BAC2 }, | |
3606 | { "bac3", BAC3 }, | |
3607 | { "bac4", BAC4 }, | |
3608 | { "bac5", BAC5 }, | |
3609 | { "bac6", BAC6 }, | |
3610 | { "bac7", BAC7 }, | |
3611 | ||
3612 | { "ic", IC }, | |
3613 | { "dc", DC }, | |
3614 | { "nc", NC }, | |
3615 | ||
3616 | { "tt0", TT0 }, | |
3617 | { "tt1", TT1 }, | |
36759679 | 3618 | /* 68ec030 versions of same. */ |
252b5132 RH |
3619 | { "ac0", TT0 }, |
3620 | { "ac1", TT1 }, | |
36759679 | 3621 | /* 68ec030 access control unit, identical to 030 MMU status reg. */ |
252b5132 RH |
3622 | { "acusr", PSR }, |
3623 | ||
3624 | /* Suppressed data and address registers. */ | |
3625 | { "zd0", ZDATA0 }, | |
3626 | { "zd1", ZDATA1 }, | |
3627 | { "zd2", ZDATA2 }, | |
3628 | { "zd3", ZDATA3 }, | |
3629 | { "zd4", ZDATA4 }, | |
3630 | { "zd5", ZDATA5 }, | |
3631 | { "zd6", ZDATA6 }, | |
3632 | { "zd7", ZDATA7 }, | |
3633 | { "za0", ZADDR0 }, | |
3634 | { "za1", ZADDR1 }, | |
3635 | { "za2", ZADDR2 }, | |
3636 | { "za3", ZADDR3 }, | |
3637 | { "za4", ZADDR4 }, | |
3638 | { "za5", ZADDR5 }, | |
3639 | { "za6", ZADDR6 }, | |
3640 | { "za7", ZADDR7 }, | |
3641 | ||
92774660 | 3642 | /* Upper and lower data and address registers, used by macw and msacw. */ |
6da466c7 ILT |
3643 | { "d0l", DATA0L }, |
3644 | { "d1l", DATA1L }, | |
3645 | { "d2l", DATA2L }, | |
3646 | { "d3l", DATA3L }, | |
3647 | { "d4l", DATA4L }, | |
3648 | { "d5l", DATA5L }, | |
3649 | { "d6l", DATA6L }, | |
3650 | { "d7l", DATA7L }, | |
3651 | ||
3652 | { "a0l", ADDR0L }, | |
3653 | { "a1l", ADDR1L }, | |
3654 | { "a2l", ADDR2L }, | |
3655 | { "a3l", ADDR3L }, | |
3656 | { "a4l", ADDR4L }, | |
3657 | { "a5l", ADDR5L }, | |
3658 | { "a6l", ADDR6L }, | |
3659 | { "a7l", ADDR7L }, | |
3660 | ||
3661 | { "d0u", DATA0U }, | |
3662 | { "d1u", DATA1U }, | |
3663 | { "d2u", DATA2U }, | |
3664 | { "d3u", DATA3U }, | |
3665 | { "d4u", DATA4U }, | |
3666 | { "d5u", DATA5U }, | |
3667 | { "d6u", DATA6U }, | |
3668 | { "d7u", DATA7U }, | |
3669 | ||
3670 | { "a0u", ADDR0U }, | |
3671 | { "a1u", ADDR1U }, | |
3672 | { "a2u", ADDR2U }, | |
3673 | { "a3u", ADDR3U }, | |
3674 | { "a4u", ADDR4U }, | |
3675 | { "a5u", ADDR5U }, | |
3676 | { "a6u", ADDR6U }, | |
3677 | { "a7u", ADDR7U }, | |
3678 | ||
252b5132 RH |
3679 | { 0, 0 } |
3680 | }; | |
3681 | ||
3682 | static void | |
3683 | init_regtable () | |
3684 | { | |
3685 | int i; | |
3686 | for (i = 0; init_table[i].name; i++) | |
3687 | insert_reg (init_table[i].name, init_table[i].number); | |
3688 | } | |
3689 | ||
3690 | static int no_68851, no_68881; | |
3691 | ||
3692 | #ifdef OBJ_AOUT | |
3693 | /* a.out machine type. Default to 68020. */ | |
3694 | int m68k_aout_machtype = 2; | |
3695 | #endif | |
3696 | ||
3697 | void | |
3698 | md_assemble (str) | |
3699 | char *str; | |
3700 | { | |
3701 | const char *er; | |
3702 | short *fromP; | |
3703 | char *toP = NULL; | |
3704 | int m, n = 0; | |
3705 | char *to_beg_P; | |
3706 | int shorts_this_frag; | |
3707 | fixS *fixP; | |
3708 | ||
3709 | /* In MRI mode, the instruction and operands are separated by a | |
3710 | space. Anything following the operands is a comment. The label | |
3711 | has already been removed. */ | |
3712 | if (flag_mri) | |
3713 | { | |
3714 | char *s; | |
3715 | int fields = 0; | |
3716 | int infield = 0; | |
3717 | int inquote = 0; | |
3718 | ||
3719 | for (s = str; *s != '\0'; s++) | |
3720 | { | |
3721 | if ((*s == ' ' || *s == '\t') && ! inquote) | |
3722 | { | |
3723 | if (infield) | |
3724 | { | |
3725 | ++fields; | |
3726 | if (fields >= 2) | |
3727 | { | |
3728 | *s = '\0'; | |
3729 | break; | |
3730 | } | |
3731 | infield = 0; | |
3732 | } | |
3733 | } | |
3734 | else | |
3735 | { | |
3736 | if (! infield) | |
3737 | infield = 1; | |
3738 | if (*s == '\'') | |
3739 | inquote = ! inquote; | |
3740 | } | |
3741 | } | |
3742 | } | |
3743 | ||
3744 | memset ((char *) (&the_ins), '\0', sizeof (the_ins)); | |
3745 | m68k_ip (str); | |
3746 | er = the_ins.error; | |
3747 | if (!er) | |
3748 | { | |
3749 | for (n = 0; n < the_ins.numargs; n++) | |
3750 | if (the_ins.operands[n].error) | |
3751 | { | |
3752 | er = the_ins.operands[n].error; | |
3753 | break; | |
3754 | } | |
3755 | } | |
3756 | if (er) | |
3757 | { | |
3758 | as_bad (_("%s -- statement `%s' ignored"), er, str); | |
3759 | return; | |
3760 | } | |
3761 | ||
3762 | /* If there is a current label, record that it marks an instruction. */ | |
3763 | if (current_label != NULL) | |
3764 | { | |
3765 | current_label->text = 1; | |
3766 | current_label = NULL; | |
3767 | } | |
3768 | ||
f27a3839 AS |
3769 | #ifdef OBJ_ELF |
3770 | /* Tie dwarf2 debug info to the address at the start of the insn. */ | |
3771 | dwarf2_emit_insn (0); | |
3772 | #endif | |
3773 | ||
252b5132 RH |
3774 | if (the_ins.nfrag == 0) |
3775 | { | |
36759679 | 3776 | /* No frag hacking involved; just put it out. */ |
252b5132 RH |
3777 | toP = frag_more (2 * the_ins.numo); |
3778 | fromP = &the_ins.opcode[0]; | |
3779 | for (m = the_ins.numo; m; --m) | |
3780 | { | |
3781 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3782 | toP += 2; | |
3783 | fromP++; | |
3784 | } | |
36759679 | 3785 | /* Put out symbol-dependent info. */ |
252b5132 RH |
3786 | for (m = 0; m < the_ins.nrel; m++) |
3787 | { | |
3788 | switch (the_ins.reloc[m].wid) | |
3789 | { | |
3790 | case 'B': | |
3791 | n = 1; | |
3792 | break; | |
3793 | case 'b': | |
3794 | n = 1; | |
3795 | break; | |
3796 | case '3': | |
3797 | n = 1; | |
3798 | break; | |
3799 | case 'w': | |
3800 | case 'W': | |
3801 | n = 2; | |
3802 | break; | |
3803 | case 'l': | |
3804 | n = 4; | |
3805 | break; | |
3806 | default: | |
3807 | as_fatal (_("Don't know how to figure width of %c in md_assemble()"), | |
3808 | the_ins.reloc[m].wid); | |
3809 | } | |
3810 | ||
3811 | fixP = fix_new_exp (frag_now, | |
3812 | ((toP - frag_now->fr_literal) | |
3813 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
3814 | n, | |
3815 | &the_ins.reloc[m].exp, | |
3816 | the_ins.reloc[m].pcrel, | |
3817 | get_reloc_code (n, the_ins.reloc[m].pcrel, | |
3818 | the_ins.reloc[m].pic_reloc)); | |
3819 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
3820 | if (the_ins.reloc[m].wid == 'B') | |
3821 | fixP->fx_signed = 1; | |
3822 | } | |
3823 | return; | |
3824 | } | |
3825 | ||
36759679 | 3826 | /* There's some frag hacking. */ |
fbe572f9 AM |
3827 | { |
3828 | /* Calculate the max frag size. */ | |
3829 | int wid; | |
3830 | ||
3831 | wid = 2 * the_ins.fragb[0].fragoff; | |
3832 | for (n = 1; n < the_ins.nfrag; n++) | |
3833 | wid += 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
3834 | /* frag_var part. */ | |
3835 | wid += 10; | |
3836 | /* Make sure the whole insn fits in one chunk, in particular that | |
3837 | the var part is attached, as we access one byte before the | |
3838 | variable frag for byte branches. */ | |
3839 | frag_grow (wid); | |
3840 | } | |
3841 | ||
252b5132 RH |
3842 | for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++) |
3843 | { | |
3844 | int wid; | |
3845 | ||
3846 | if (n == 0) | |
3847 | wid = 2 * the_ins.fragb[n].fragoff; | |
3848 | else | |
3849 | wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
3850 | toP = frag_more (wid); | |
3851 | to_beg_P = toP; | |
3852 | shorts_this_frag = 0; | |
3853 | for (m = wid / 2; m; --m) | |
3854 | { | |
3855 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3856 | toP += 2; | |
3857 | fromP++; | |
3858 | shorts_this_frag++; | |
3859 | } | |
3860 | for (m = 0; m < the_ins.nrel; m++) | |
3861 | { | |
3862 | if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag) | |
3863 | { | |
3864 | the_ins.reloc[m].n -= 2 * shorts_this_frag; | |
3865 | break; | |
3866 | } | |
3867 | wid = the_ins.reloc[m].wid; | |
3868 | if (wid == 0) | |
3869 | continue; | |
3870 | the_ins.reloc[m].wid = 0; | |
3871 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
3872 | ||
3873 | fixP = fix_new_exp (frag_now, | |
3874 | ((toP - frag_now->fr_literal) | |
3875 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
3876 | wid, | |
3877 | &the_ins.reloc[m].exp, | |
3878 | the_ins.reloc[m].pcrel, | |
3879 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
3880 | the_ins.reloc[m].pic_reloc)); | |
3881 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
3882 | } | |
3883 | (void) frag_var (rs_machine_dependent, 10, 0, | |
3884 | (relax_substateT) (the_ins.fragb[n].fragty), | |
3885 | the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P); | |
3886 | } | |
3887 | n = (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
3888 | shorts_this_frag = 0; | |
3889 | if (n) | |
3890 | { | |
3891 | toP = frag_more (n * sizeof (short)); | |
3892 | while (n--) | |
3893 | { | |
3894 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3895 | toP += 2; | |
3896 | fromP++; | |
3897 | shorts_this_frag++; | |
3898 | } | |
3899 | } | |
3900 | for (m = 0; m < the_ins.nrel; m++) | |
3901 | { | |
3902 | int wid; | |
3903 | ||
3904 | wid = the_ins.reloc[m].wid; | |
3905 | if (wid == 0) | |
3906 | continue; | |
3907 | the_ins.reloc[m].wid = 0; | |
3908 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
3909 | ||
3910 | fixP = fix_new_exp (frag_now, | |
3911 | ((the_ins.reloc[m].n + toP - frag_now->fr_literal) | |
3912 | - shorts_this_frag * 2), | |
3913 | wid, | |
3914 | &the_ins.reloc[m].exp, | |
3915 | the_ins.reloc[m].pcrel, | |
3916 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
3917 | the_ins.reloc[m].pic_reloc)); | |
3918 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
3919 | } | |
3920 | } | |
3921 | ||
3922 | void | |
3923 | md_begin () | |
3924 | { | |
3925 | /* | |
3926 | * md_begin -- set up hash tables with 68000 instructions. | |
3927 | * similar to what the vax assembler does. ---phr | |
3928 | */ | |
3929 | /* RMS claims the thing to do is take the m68k-opcode.h table, and make | |
3930 | a copy of it at runtime, adding in the information we want but isn't | |
3931 | there. I think it'd be better to have an awk script hack the table | |
3932 | at compile time. Or even just xstr the table and use it as-is. But | |
3933 | my lord ghod hath spoken, so we do it this way. Excuse the ugly var | |
3934 | names. */ | |
3935 | ||
94f592af NC |
3936 | const struct m68k_opcode *ins; |
3937 | struct m68k_incant *hack, *slak; | |
36759679 | 3938 | const char *retval = 0; /* Empty string, or error msg text. */ |
94f592af | 3939 | int i; |
252b5132 RH |
3940 | |
3941 | if (flag_mri) | |
3942 | { | |
3943 | flag_reg_prefix_optional = 1; | |
3944 | m68k_abspcadd = 1; | |
3945 | if (! m68k_rel32_from_cmdline) | |
3946 | m68k_rel32 = 0; | |
3947 | } | |
3948 | ||
3949 | op_hash = hash_new (); | |
3950 | ||
3951 | obstack_begin (&robyn, 4000); | |
3952 | for (i = 0; i < m68k_numopcodes; i++) | |
3953 | { | |
3954 | hack = slak = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
3955 | do | |
3956 | { | |
3957 | ins = &m68k_opcodes[i]; | |
3958 | /* We *could* ignore insns that don't match our arch here | |
92774660 | 3959 | but just leaving them out of the hash. */ |
252b5132 RH |
3960 | slak->m_operands = ins->args; |
3961 | slak->m_opnum = strlen (slak->m_operands) / 2; | |
3962 | slak->m_arch = ins->arch; | |
3963 | slak->m_opcode = ins->opcode; | |
36759679 | 3964 | /* This is kludgey. */ |
252b5132 RH |
3965 | slak->m_codenum = ((ins->match) & 0xffffL) ? 2 : 1; |
3966 | if (i + 1 != m68k_numopcodes | |
3967 | && !strcmp (ins->name, m68k_opcodes[i + 1].name)) | |
3968 | { | |
3969 | slak->m_next = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
3970 | i++; | |
3971 | } | |
3972 | else | |
3973 | slak->m_next = 0; | |
3974 | slak = slak->m_next; | |
3975 | } | |
3976 | while (slak); | |
3977 | ||
3978 | retval = hash_insert (op_hash, ins->name, (char *) hack); | |
3979 | if (retval) | |
3980 | as_fatal (_("Internal Error: Can't hash %s: %s"), ins->name, retval); | |
3981 | } | |
3982 | ||
3983 | for (i = 0; i < m68k_numaliases; i++) | |
3984 | { | |
3985 | const char *name = m68k_opcode_aliases[i].primary; | |
3986 | const char *alias = m68k_opcode_aliases[i].alias; | |
3987 | PTR val = hash_find (op_hash, name); | |
3988 | if (!val) | |
3989 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
3990 | retval = hash_insert (op_hash, alias, val); | |
3991 | if (retval) | |
3992 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
3993 | } | |
3994 | ||
3995 | /* In MRI mode, all unsized branches are variable sized. Normally, | |
3996 | they are word sized. */ | |
3997 | if (flag_mri) | |
3998 | { | |
3999 | static struct m68k_opcode_alias mri_aliases[] = | |
4000 | { | |
4001 | { "bhi", "jhi", }, | |
4002 | { "bls", "jls", }, | |
4003 | { "bcc", "jcc", }, | |
4004 | { "bcs", "jcs", }, | |
4005 | { "bne", "jne", }, | |
4006 | { "beq", "jeq", }, | |
4007 | { "bvc", "jvc", }, | |
4008 | { "bvs", "jvs", }, | |
4009 | { "bpl", "jpl", }, | |
4010 | { "bmi", "jmi", }, | |
4011 | { "bge", "jge", }, | |
4012 | { "blt", "jlt", }, | |
4013 | { "bgt", "jgt", }, | |
4014 | { "ble", "jle", }, | |
4015 | { "bra", "jra", }, | |
4016 | { "bsr", "jbsr", }, | |
4017 | }; | |
4018 | ||
8fce3f5e AM |
4019 | for (i = 0; |
4020 | i < (int) (sizeof mri_aliases / sizeof mri_aliases[0]); | |
4021 | i++) | |
252b5132 RH |
4022 | { |
4023 | const char *name = mri_aliases[i].primary; | |
4024 | const char *alias = mri_aliases[i].alias; | |
4025 | PTR val = hash_find (op_hash, name); | |
4026 | if (!val) | |
4027 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4028 | retval = hash_jam (op_hash, alias, val); | |
4029 | if (retval) | |
4030 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4031 | } | |
4032 | } | |
4033 | ||
8fce3f5e | 4034 | for (i = 0; i < (int) sizeof (notend_table); i++) |
252b5132 RH |
4035 | { |
4036 | notend_table[i] = 0; | |
4037 | alt_notend_table[i] = 0; | |
4038 | } | |
4039 | notend_table[','] = 1; | |
4040 | notend_table['{'] = 1; | |
4041 | notend_table['}'] = 1; | |
4042 | alt_notend_table['a'] = 1; | |
4043 | alt_notend_table['A'] = 1; | |
4044 | alt_notend_table['d'] = 1; | |
4045 | alt_notend_table['D'] = 1; | |
4046 | alt_notend_table['#'] = 1; | |
4047 | alt_notend_table['&'] = 1; | |
4048 | alt_notend_table['f'] = 1; | |
4049 | alt_notend_table['F'] = 1; | |
4050 | #ifdef REGISTER_PREFIX | |
4051 | alt_notend_table[REGISTER_PREFIX] = 1; | |
4052 | #endif | |
4053 | ||
4054 | /* We need to put '(' in alt_notend_table to handle | |
4055 | cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) | |
4056 | */ | |
4057 | alt_notend_table['('] = 1; | |
4058 | ||
4059 | /* We need to put '@' in alt_notend_table to handle | |
4060 | cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) | |
4061 | */ | |
4062 | alt_notend_table['@'] = 1; | |
4063 | ||
4064 | /* We need to put digits in alt_notend_table to handle | |
4065 | bfextu %d0{24:1},%d0 | |
4066 | */ | |
4067 | alt_notend_table['0'] = 1; | |
4068 | alt_notend_table['1'] = 1; | |
4069 | alt_notend_table['2'] = 1; | |
4070 | alt_notend_table['3'] = 1; | |
4071 | alt_notend_table['4'] = 1; | |
4072 | alt_notend_table['5'] = 1; | |
4073 | alt_notend_table['6'] = 1; | |
4074 | alt_notend_table['7'] = 1; | |
4075 | alt_notend_table['8'] = 1; | |
4076 | alt_notend_table['9'] = 1; | |
4077 | ||
4078 | #ifndef MIT_SYNTAX_ONLY | |
4079 | /* Insert pseudo ops, these have to go into the opcode table since | |
36759679 | 4080 | gas expects pseudo ops to start with a dot. */ |
252b5132 RH |
4081 | { |
4082 | int n = 0; | |
4083 | while (mote_pseudo_table[n].poc_name) | |
4084 | { | |
4085 | hack = (struct m68k_incant *) | |
4086 | obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
4087 | hash_insert (op_hash, | |
4088 | mote_pseudo_table[n].poc_name, (char *) hack); | |
4089 | hack->m_operands = 0; | |
4090 | hack->m_opnum = n; | |
4091 | n++; | |
4092 | } | |
4093 | } | |
4094 | #endif | |
4095 | ||
4096 | init_regtable (); | |
4097 | ||
4098 | #ifdef OBJ_ELF | |
4099 | record_alignment (text_section, 2); | |
4100 | record_alignment (data_section, 2); | |
4101 | record_alignment (bss_section, 2); | |
4102 | #endif | |
4103 | } | |
4104 | ||
4105 | static void | |
4106 | select_control_regs () | |
4107 | { | |
4108 | /* Note which set of "movec" control registers is available. */ | |
4109 | switch (cpu_of_arch (current_architecture)) | |
4110 | { | |
4f2a7c9e NC |
4111 | case 0: |
4112 | as_warn (_("architecture not yet selected: defaulting to 68020")); | |
4113 | control_regs = m68020_control_regs; | |
4114 | break; | |
4115 | ||
252b5132 RH |
4116 | case m68000: |
4117 | control_regs = m68000_control_regs; | |
4118 | break; | |
4119 | case m68010: | |
4120 | control_regs = m68010_control_regs; | |
4121 | break; | |
4122 | case m68020: | |
4123 | case m68030: | |
4124 | control_regs = m68020_control_regs; | |
4125 | break; | |
4126 | case m68040: | |
4127 | control_regs = m68040_control_regs; | |
4128 | break; | |
4129 | case m68060: | |
4130 | control_regs = m68060_control_regs; | |
4131 | break; | |
4132 | case cpu32: | |
4133 | control_regs = cpu32_control_regs; | |
4134 | break; | |
4135 | case mcf5200: | |
6da466c7 ILT |
4136 | case mcf5206e: |
4137 | case mcf5307: | |
dc84e067 | 4138 | case mcf5407: |
6da466c7 | 4139 | control_regs = mcf_control_regs; |
252b5132 | 4140 | break; |
3e602632 NC |
4141 | case mcf528x: |
4142 | control_regs = mcf528x_control_regs; | |
4143 | break; | |
4144 | case mcfv4e: | |
4145 | control_regs = mcfv4e_control_regs; | |
4146 | break; | |
252b5132 RH |
4147 | default: |
4148 | abort (); | |
4149 | } | |
4150 | } | |
4151 | ||
4152 | void | |
4153 | m68k_init_after_args () | |
4154 | { | |
4155 | if (cpu_of_arch (current_architecture) == 0) | |
4156 | { | |
4157 | int i; | |
4158 | const char *default_cpu = TARGET_CPU; | |
4159 | ||
4160 | if (*default_cpu == 'm') | |
4161 | default_cpu++; | |
4162 | for (i = 0; i < n_archs; i++) | |
4163 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
4164 | break; | |
4165 | if (i == n_archs) | |
4166 | { | |
4167 | as_bad (_("unrecognized default cpu `%s' ???"), TARGET_CPU); | |
4168 | current_architecture |= m68020; | |
4169 | } | |
4170 | else | |
4171 | current_architecture |= archs[i].arch; | |
4172 | } | |
4173 | /* Permit m68881 specification with all cpus; those that can't work | |
4174 | with a coprocessor could be doing emulation. */ | |
4175 | if (current_architecture & m68851) | |
4176 | { | |
4177 | if (current_architecture & m68040) | |
4178 | { | |
4179 | as_warn (_("68040 and 68851 specified; mmu instructions may assemble incorrectly")); | |
4180 | } | |
4181 | } | |
4182 | /* What other incompatibilities could we check for? */ | |
4183 | ||
4184 | /* Toss in some default assumptions about coprocessors. */ | |
4185 | if (!no_68881 | |
4186 | && (cpu_of_arch (current_architecture) | |
4187 | /* Can CPU32 have a 68881 coprocessor?? */ | |
4188 | & (m68020 | m68030 | cpu32))) | |
4189 | { | |
4190 | current_architecture |= m68881; | |
4191 | } | |
4192 | if (!no_68851 | |
4193 | && (cpu_of_arch (current_architecture) & m68020up) != 0 | |
4194 | && (cpu_of_arch (current_architecture) & m68040up) == 0) | |
4195 | { | |
4196 | current_architecture |= m68851; | |
4197 | } | |
4198 | if (no_68881 && (current_architecture & m68881)) | |
4199 | as_bad (_("options for 68881 and no-68881 both given")); | |
4200 | if (no_68851 && (current_architecture & m68851)) | |
4201 | as_bad (_("options for 68851 and no-68851 both given")); | |
4202 | ||
4203 | #ifdef OBJ_AOUT | |
4204 | /* Work out the magic number. This isn't very general. */ | |
4205 | if (current_architecture & m68000) | |
4206 | m68k_aout_machtype = 0; | |
4207 | else if (current_architecture & m68010) | |
4208 | m68k_aout_machtype = 1; | |
4209 | else if (current_architecture & m68020) | |
4210 | m68k_aout_machtype = 2; | |
4211 | else | |
4212 | m68k_aout_machtype = 2; | |
4213 | #endif | |
4214 | ||
4215 | /* Note which set of "movec" control registers is available. */ | |
4216 | select_control_regs (); | |
4217 | ||
4218 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 4219 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
4220 | md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0; |
4221 | } | |
4222 | \f | |
4223 | /* This is called when a label is defined. */ | |
4224 | ||
4225 | void | |
4226 | m68k_frob_label (sym) | |
4227 | symbolS *sym; | |
4228 | { | |
4229 | struct label_line *n; | |
4230 | ||
4231 | n = (struct label_line *) xmalloc (sizeof *n); | |
4232 | n->next = labels; | |
4233 | n->label = sym; | |
4234 | as_where (&n->file, &n->line); | |
4235 | n->text = 0; | |
4236 | labels = n; | |
4237 | current_label = n; | |
4238 | } | |
4239 | ||
4240 | /* This is called when a value that is not an instruction is emitted. */ | |
4241 | ||
4242 | void | |
4243 | m68k_flush_pending_output () | |
4244 | { | |
4245 | current_label = NULL; | |
4246 | } | |
4247 | ||
4248 | /* This is called at the end of the assembly, when the final value of | |
4249 | the label is known. We warn if this is a text symbol aligned at an | |
4250 | odd location. */ | |
4251 | ||
4252 | void | |
4253 | m68k_frob_symbol (sym) | |
4254 | symbolS *sym; | |
4255 | { | |
4256 | if (S_GET_SEGMENT (sym) == reg_section | |
4257 | && (int) S_GET_VALUE (sym) < 0) | |
4258 | { | |
4259 | S_SET_SEGMENT (sym, absolute_section); | |
4260 | S_SET_VALUE (sym, ~(int)S_GET_VALUE (sym)); | |
4261 | } | |
4262 | else if ((S_GET_VALUE (sym) & 1) != 0) | |
4263 | { | |
4264 | struct label_line *l; | |
4265 | ||
4266 | for (l = labels; l != NULL; l = l->next) | |
4267 | { | |
4268 | if (l->label == sym) | |
4269 | { | |
4270 | if (l->text) | |
4271 | as_warn_where (l->file, l->line, | |
4272 | _("text label `%s' aligned to odd boundary"), | |
4273 | S_GET_NAME (sym)); | |
4274 | break; | |
4275 | } | |
4276 | } | |
4277 | } | |
4278 | } | |
4279 | \f | |
4280 | /* This is called if we go in or out of MRI mode because of the .mri | |
4281 | pseudo-op. */ | |
4282 | ||
4283 | void | |
4284 | m68k_mri_mode_change (on) | |
4285 | int on; | |
4286 | { | |
4287 | if (on) | |
4288 | { | |
4289 | if (! flag_reg_prefix_optional) | |
4290 | { | |
4291 | flag_reg_prefix_optional = 1; | |
4292 | #ifdef REGISTER_PREFIX | |
4293 | init_regtable (); | |
4294 | #endif | |
4295 | } | |
4296 | m68k_abspcadd = 1; | |
4297 | if (! m68k_rel32_from_cmdline) | |
4298 | m68k_rel32 = 0; | |
4299 | } | |
4300 | else | |
4301 | { | |
4302 | if (! reg_prefix_optional_seen) | |
4303 | { | |
4304 | #ifdef REGISTER_PREFIX_OPTIONAL | |
4305 | flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
4306 | #else | |
4307 | flag_reg_prefix_optional = 0; | |
4308 | #endif | |
4309 | #ifdef REGISTER_PREFIX | |
4310 | init_regtable (); | |
4311 | #endif | |
4312 | } | |
4313 | m68k_abspcadd = 0; | |
4314 | if (! m68k_rel32_from_cmdline) | |
4315 | m68k_rel32 = 1; | |
4316 | } | |
4317 | } | |
4318 | ||
36759679 | 4319 | /* Equal to MAX_PRECISION in atof-ieee.c. */ |
252b5132 RH |
4320 | #define MAX_LITTLENUMS 6 |
4321 | ||
4322 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4323 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4324 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4325 | returned, or NULL on OK. */ |
4326 | ||
4327 | char * | |
4328 | md_atof (type, litP, sizeP) | |
4329 | char type; | |
4330 | char *litP; | |
4331 | int *sizeP; | |
4332 | { | |
4333 | int prec; | |
4334 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
4335 | LITTLENUM_TYPE *wordP; | |
4336 | char *t; | |
4337 | ||
4338 | switch (type) | |
4339 | { | |
4340 | case 'f': | |
4341 | case 'F': | |
4342 | case 's': | |
4343 | case 'S': | |
4344 | prec = 2; | |
4345 | break; | |
4346 | ||
4347 | case 'd': | |
4348 | case 'D': | |
4349 | case 'r': | |
4350 | case 'R': | |
4351 | prec = 4; | |
4352 | break; | |
4353 | ||
4354 | case 'x': | |
4355 | case 'X': | |
4356 | prec = 6; | |
4357 | break; | |
4358 | ||
4359 | case 'p': | |
4360 | case 'P': | |
4361 | prec = 6; | |
4362 | break; | |
4363 | ||
4364 | default: | |
4365 | *sizeP = 0; | |
4366 | return _("Bad call to MD_ATOF()"); | |
4367 | } | |
4368 | t = atof_ieee (input_line_pointer, type, words); | |
4369 | if (t) | |
4370 | input_line_pointer = t; | |
4371 | ||
4372 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
4373 | for (wordP = words; prec--;) | |
4374 | { | |
4375 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
4376 | litP += sizeof (LITTLENUM_TYPE); | |
4377 | } | |
4378 | return 0; | |
4379 | } | |
4380 | ||
4381 | void | |
4382 | md_number_to_chars (buf, val, n) | |
4383 | char *buf; | |
4384 | valueT val; | |
4385 | int n; | |
4386 | { | |
4387 | number_to_chars_bigendian (buf, val, n); | |
4388 | } | |
4389 | ||
94f592af NC |
4390 | void |
4391 | md_apply_fix3 (fixP, valP, seg) | |
252b5132 | 4392 | fixS *fixP; |
bbe8ef22 | 4393 | valueT *valP; |
94f592af | 4394 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 4395 | { |
bbe8ef22 | 4396 | offsetT val = *valP; |
252b5132 RH |
4397 | addressT upper_limit; |
4398 | offsetT lower_limit; | |
4399 | ||
4400 | /* This is unnecessary but it convinces the native rs6000 compiler | |
4401 | to generate the code we want. */ | |
4402 | char *buf = fixP->fx_frag->fr_literal; | |
4403 | buf += fixP->fx_where; | |
36759679 | 4404 | /* End ibm compiler workaround. */ |
252b5132 | 4405 | |
c801568a | 4406 | val = ((val & 0xffffffff) ^ 0x80000000) - 0x80000000; |
252b5132 | 4407 | |
94f592af NC |
4408 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
4409 | fixP->fx_done = 1; | |
4410 | ||
252b5132 RH |
4411 | #ifdef OBJ_ELF |
4412 | if (fixP->fx_addsy) | |
4413 | { | |
4414 | memset (buf, 0, fixP->fx_size); | |
36759679 | 4415 | fixP->fx_addnumber = val; /* Remember value for emit_reloc. */ |
252b5132 RH |
4416 | |
4417 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4418 | && !S_IS_DEFINED (fixP->fx_addsy) | |
4419 | && !S_IS_WEAK (fixP->fx_addsy)) | |
4420 | S_SET_WEAK (fixP->fx_addsy); | |
4421 | return; | |
4422 | } | |
4423 | #endif | |
4424 | ||
4425 | #ifdef BFD_ASSEMBLER | |
4426 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4427 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4428 | return; | |
4429 | #endif | |
4430 | ||
4431 | switch (fixP->fx_size) | |
4432 | { | |
94f592af NC |
4433 | /* The cast to offsetT below are necessary to make code |
4434 | correct for machines where ints are smaller than offsetT. */ | |
252b5132 RH |
4435 | case 1: |
4436 | *buf++ = val; | |
4437 | upper_limit = 0x7f; | |
4438 | lower_limit = - (offsetT) 0x80; | |
4439 | break; | |
4440 | case 2: | |
4441 | *buf++ = (val >> 8); | |
4442 | *buf++ = val; | |
4443 | upper_limit = 0x7fff; | |
4444 | lower_limit = - (offsetT) 0x8000; | |
4445 | break; | |
4446 | case 4: | |
4447 | *buf++ = (val >> 24); | |
4448 | *buf++ = (val >> 16); | |
4449 | *buf++ = (val >> 8); | |
4450 | *buf++ = val; | |
4451 | upper_limit = 0x7fffffff; | |
36759679 | 4452 | lower_limit = - (offsetT) 0x7fffffff - 1; /* Avoid constant overflow. */ |
252b5132 RH |
4453 | break; |
4454 | default: | |
4455 | BAD_CASE (fixP->fx_size); | |
4456 | } | |
4457 | ||
4458 | /* Fix up a negative reloc. */ | |
4459 | if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL) | |
4460 | { | |
4461 | fixP->fx_addsy = fixP->fx_subsy; | |
4462 | fixP->fx_subsy = NULL; | |
4463 | fixP->fx_tcbit = 1; | |
4464 | } | |
4465 | ||
4466 | /* For non-pc-relative values, it's conceivable we might get something | |
4467 | like "0xff" for a byte field. So extend the upper part of the range | |
4468 | to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", | |
4469 | so that we can do any range checking at all. */ | |
4470 | if (! fixP->fx_pcrel && ! fixP->fx_signed) | |
4471 | upper_limit = upper_limit * 2 + 1; | |
4472 | ||
4473 | if ((addressT) val > upper_limit | |
4474 | && (val > 0 || val < lower_limit)) | |
4475 | as_bad_where (fixP->fx_file, fixP->fx_line, _("value out of range")); | |
4476 | ||
4477 | /* A one byte PC-relative reloc means a short branch. We can't use | |
4478 | a short branch with a value of 0 or -1, because those indicate | |
4479 | different opcodes (branches with longer offsets). fixup_segment | |
4480 | in write.c may have clobbered fx_pcrel, so we need to examine the | |
4481 | reloc type. */ | |
4482 | if ((fixP->fx_pcrel | |
4483 | #ifdef BFD_ASSEMBLER | |
4484 | || fixP->fx_r_type == BFD_RELOC_8_PCREL | |
4485 | #endif | |
4486 | ) | |
4487 | && fixP->fx_size == 1 | |
4488 | && (fixP->fx_addsy == NULL | |
4489 | || S_IS_DEFINED (fixP->fx_addsy)) | |
4490 | && (val == 0 || val == -1)) | |
4491 | as_bad_where (fixP->fx_file, fixP->fx_line, _("invalid byte branch offset")); | |
4492 | } | |
4493 | ||
252b5132 RH |
4494 | /* *fragP has been relaxed to its final size, and now needs to have |
4495 | the bytes inside it modified to conform to the new size There is UGLY | |
4496 | MAGIC here. .. | |
4497 | */ | |
4498 | static void | |
4499 | md_convert_frag_1 (fragP) | |
4500 | register fragS *fragP; | |
4501 | { | |
4502 | long disp; | |
252b5132 RH |
4503 | fixS *fixP; |
4504 | ||
4505 | /* Address in object code of the displacement. */ | |
4506 | register int object_address = fragP->fr_fix + fragP->fr_address; | |
4507 | ||
4508 | /* Address in gas core of the place to store the displacement. */ | |
4509 | /* This convinces the native rs6000 compiler to generate the code we | |
92774660 | 4510 | want. */ |
252b5132 RH |
4511 | register char *buffer_address = fragP->fr_literal; |
4512 | buffer_address += fragP->fr_fix; | |
36759679 | 4513 | /* End ibm compiler workaround. */ |
252b5132 RH |
4514 | |
4515 | /* The displacement of the address, from current location. */ | |
4516 | disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0; | |
4517 | disp = (disp + fragP->fr_offset) - object_address; | |
4518 | ||
252b5132 RH |
4519 | switch (fragP->fr_subtype) |
4520 | { | |
151337e8 NC |
4521 | case TAB (BRANCHBWL, BYTE): |
4522 | case TAB (BRABSJUNC, BYTE): | |
4523 | case TAB (BRABSJCOND, BYTE): | |
4524 | case TAB (BRANCHBW, BYTE): | |
252b5132 RH |
4525 | know (issbyte (disp)); |
4526 | if (disp == 0) | |
b091f402 AM |
4527 | as_bad_where (fragP->fr_file, fragP->fr_line, |
4528 | _("short branch with zero offset: use :w")); | |
151337e8 | 4529 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4530 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4531 | fixP->fx_pcrel_adjust = -1; |
252b5132 | 4532 | break; |
151337e8 NC |
4533 | case TAB (BRANCHBWL, SHORT): |
4534 | case TAB (BRABSJUNC, SHORT): | |
4535 | case TAB (BRABSJCOND, SHORT): | |
4536 | case TAB (BRANCHBW, SHORT): | |
252b5132 | 4537 | fragP->fr_opcode[1] = 0x00; |
151337e8 | 4538 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4539 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4540 | fragP->fr_fix += 2; |
4541 | break; | |
4542 | case TAB (BRANCHBWL, LONG): | |
4543 | fragP->fr_opcode[1] = (char) 0xFF; | |
4544 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4545 | 1, RELAX_RELOC_PC32); |
151337e8 | 4546 | fragP->fr_fix += 4; |
252b5132 | 4547 | break; |
151337e8 NC |
4548 | case TAB (BRABSJUNC, LONG): |
4549 | if (fragP->fr_opcode[0] == 0x61) /* jbsr */ | |
252b5132 | 4550 | { |
36759679 NC |
4551 | if (flag_keep_pcrel) |
4552 | as_fatal(_("Tried to convert PC relative BSR to absolute JSR")); | |
151337e8 | 4553 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4554 | fragP->fr_opcode[1] = (char) 0xB9; /* JSR with ABSL LONG operand. */ |
151337e8 | 4555 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
3ae647a0 | 4556 | 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4557 | fragP->fr_fix += 4; |
4558 | } | |
4559 | else if (fragP->fr_opcode[0] == 0x60) /* jbra */ | |
4560 | { | |
36759679 NC |
4561 | if (flag_keep_pcrel) |
4562 | as_fatal(_("Tried to convert PC relative branch to absolute jump")); | |
151337e8 | 4563 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4564 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG operand. */ |
151337e8 | 4565 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4566 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4567 | fragP->fr_fix += 4; |
252b5132 RH |
4568 | } |
4569 | else | |
4570 | { | |
151337e8 NC |
4571 | /* This cannot happen, because jbsr and jbra are the only two |
4572 | unconditional branches. */ | |
4573 | abort (); | |
252b5132 RH |
4574 | } |
4575 | break; | |
151337e8 | 4576 | case TAB (BRABSJCOND, LONG): |
36759679 NC |
4577 | if (flag_keep_pcrel) |
4578 | as_fatal(_("Tried to convert PC relative conditional branch to absolute jump")); | |
92774660 | 4579 | |
36759679 NC |
4580 | /* Only Bcc 68000 instructions can come here |
4581 | Change bcc into b!cc/jmp absl long. */ | |
4582 | fragP->fr_opcode[0] ^= 0x01; /* Invert bcc. */ | |
4583 | fragP->fr_opcode[1] = 0x06; /* Branch offset = 6. */ | |
252b5132 RH |
4584 | |
4585 | /* JF: these used to be fr_opcode[2,3], but they may be in a | |
67c1ffbe | 4586 | different frag, in which case referring to them is a no-no. |
92774660 | 4587 | Only fr_opcode[0,1] are guaranteed to work. */ |
252b5132 RH |
4588 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ |
4589 | *buffer_address++ = (char) 0xf9; | |
36759679 | 4590 | fragP->fr_fix += 2; /* Account for jmp instruction. */ |
252b5132 | 4591 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
5cbdaa77 | 4592 | fragP->fr_offset, 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4593 | fragP->fr_fix += 4; |
4594 | break; | |
4595 | case TAB (FBRANCH, SHORT): | |
4596 | know ((fragP->fr_opcode[1] & 0x40) == 0); | |
4597 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4598 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4599 | fragP->fr_fix += 2; |
4600 | break; | |
4601 | case TAB (FBRANCH, LONG): | |
36759679 | 4602 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit. */ |
151337e8 | 4603 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4604 | 1, RELAX_RELOC_PC32); |
252b5132 | 4605 | fragP->fr_fix += 4; |
252b5132 | 4606 | break; |
151337e8 NC |
4607 | case TAB (DBCCLBR, SHORT): |
4608 | case TAB (DBCCABSJ, SHORT): | |
4609 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4610 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4611 | fragP->fr_fix += 2; |
4612 | break; | |
4613 | case TAB (DBCCLBR, LONG): | |
36759679 NC |
4614 | /* Only DBcc instructions can come here. |
4615 | Change dbcc into dbcc/bral. | |
4616 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4617 | if (flag_keep_pcrel) | |
4618 | as_fatal(_("Tried to convert DBcc to absolute jump")); | |
28e7409f | 4619 | |
36759679 | 4620 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
252b5132 | 4621 | *buffer_address++ = 0x04; |
36759679 | 4622 | *buffer_address++ = 0x60; /* Put in bra pc+6. */ |
252b5132 | 4623 | *buffer_address++ = 0x06; |
151337e8 NC |
4624 | *buffer_address++ = 0x60; /* Put in bral (0x60ff). */ |
4625 | *buffer_address++ = (char) 0xff; | |
252b5132 | 4626 | |
36759679 | 4627 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4628 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 1, |
5cbdaa77 | 4629 | RELAX_RELOC_PC32); |
252b5132 | 4630 | fragP->fr_fix += 4; |
252b5132 | 4631 | break; |
151337e8 | 4632 | case TAB (DBCCABSJ, LONG): |
36759679 NC |
4633 | /* Only DBcc instructions can come here. |
4634 | Change dbcc into dbcc/jmp. | |
4635 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4636 | if (flag_keep_pcrel) | |
4637 | as_fatal(_("Tried to convert PC relative conditional branch to absolute jump")); | |
151337e8 | 4638 | |
36759679 | 4639 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
151337e8 | 4640 | *buffer_address++ = 0x04; |
36759679 | 4641 | *buffer_address++ = 0x60; /* Put in bra pc + 6. */ |
151337e8 | 4642 | *buffer_address++ = 0x06; |
36759679 | 4643 | *buffer_address++ = 0x4e; /* Put in jmp long (0x4ef9). */ |
151337e8 NC |
4644 | *buffer_address++ = (char) 0xf9; |
4645 | ||
36759679 | 4646 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4647 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 0, |
5cbdaa77 | 4648 | RELAX_RELOC_ABS32); |
252b5132 | 4649 | fragP->fr_fix += 4; |
252b5132 | 4650 | break; |
151337e8 | 4651 | case TAB (PCREL1632, SHORT): |
252b5132 RH |
4652 | fragP->fr_opcode[1] &= ~0x3F; |
4653 | fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */ | |
151337e8 | 4654 | fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, |
5cbdaa77 | 4655 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
151337e8 | 4656 | fragP->fr_fix += 2; |
252b5132 | 4657 | break; |
151337e8 | 4658 | case TAB (PCREL1632, LONG): |
252b5132 RH |
4659 | /* Already set to mode 7.3; this indicates: PC indirect with |
4660 | suppressed index, 32-bit displacement. */ | |
4661 | *buffer_address++ = 0x01; | |
4662 | *buffer_address++ = 0x70; | |
4663 | fragP->fr_fix += 2; | |
151337e8 | 4664 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4665 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4666 | fixP->fx_pcrel_adjust = 2; |
4667 | fragP->fr_fix += 4; | |
252b5132 | 4668 | break; |
252b5132 | 4669 | case TAB (PCINDEX, BYTE): |
252b5132 RH |
4670 | assert (fragP->fr_fix >= 2); |
4671 | buffer_address[-2] &= ~1; | |
151337e8 | 4672 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4673 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4674 | fixP->fx_pcrel_adjust = 1; |
252b5132 RH |
4675 | break; |
4676 | case TAB (PCINDEX, SHORT): | |
252b5132 RH |
4677 | assert (fragP->fr_fix >= 2); |
4678 | buffer_address[-2] |= 0x1; | |
4679 | buffer_address[-1] = 0x20; | |
4680 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, | |
5cbdaa77 | 4681 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
252b5132 | 4682 | fixP->fx_pcrel_adjust = 2; |
151337e8 | 4683 | fragP->fr_fix += 2; |
252b5132 RH |
4684 | break; |
4685 | case TAB (PCINDEX, LONG): | |
252b5132 RH |
4686 | assert (fragP->fr_fix >= 2); |
4687 | buffer_address[-2] |= 0x1; | |
4688 | buffer_address[-1] = 0x30; | |
151337e8 | 4689 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4690 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4691 | fixP->fx_pcrel_adjust = 2; |
4692 | fragP->fr_fix += 4; | |
4693 | break; | |
4694 | case TAB (ABSTOPCREL, SHORT): | |
4695 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4696 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4697 | fragP->fr_fix += 2; |
4698 | break; | |
4699 | case TAB (ABSTOPCREL, LONG): | |
36759679 NC |
4700 | if (flag_keep_pcrel) |
4701 | as_fatal(_("Tried to convert PC relative conditional branch to absolute jump")); | |
151337e8 | 4702 | /* The thing to do here is force it to ABSOLUTE LONG, since |
36759679 | 4703 | ABSTOPCREL is really trying to shorten an ABSOLUTE address anyway. */ |
151337e8 NC |
4704 | if ((fragP->fr_opcode[1] & 0x3F) != 0x3A) |
4705 | abort (); | |
4706 | fragP->fr_opcode[1] &= ~0x3F; | |
4707 | fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */ | |
4708 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4709 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4710 | fragP->fr_fix += 4; |
252b5132 | 4711 | break; |
252b5132 RH |
4712 | } |
4713 | } | |
4714 | ||
4715 | #ifndef BFD_ASSEMBLER | |
4716 | ||
4717 | void | |
4718 | md_convert_frag (headers, sec, fragP) | |
8fce3f5e AM |
4719 | object_headers *headers ATTRIBUTE_UNUSED; |
4720 | segT sec ATTRIBUTE_UNUSED; | |
252b5132 RH |
4721 | fragS *fragP; |
4722 | { | |
4723 | md_convert_frag_1 (fragP); | |
4724 | } | |
4725 | ||
4726 | #else | |
4727 | ||
4728 | void | |
4729 | md_convert_frag (abfd, sec, fragP) | |
36823076 AS |
4730 | bfd *abfd ATTRIBUTE_UNUSED; |
4731 | segT sec ATTRIBUTE_UNUSED; | |
252b5132 RH |
4732 | fragS *fragP; |
4733 | { | |
4734 | md_convert_frag_1 (fragP); | |
4735 | } | |
4736 | #endif | |
4737 | ||
4738 | /* Force truly undefined symbols to their maximum size, and generally set up | |
4739 | the frag list to be relaxed | |
4740 | */ | |
4741 | int | |
4742 | md_estimate_size_before_relax (fragP, segment) | |
4743 | register fragS *fragP; | |
4744 | segT segment; | |
4745 | { | |
151337e8 | 4746 | /* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */ |
252b5132 RH |
4747 | switch (fragP->fr_subtype) |
4748 | { | |
151337e8 NC |
4749 | case TAB (BRANCHBWL, SZ_UNDEF): |
4750 | case TAB (BRABSJUNC, SZ_UNDEF): | |
151337e8 | 4751 | case TAB (BRABSJCOND, SZ_UNDEF): |
252b5132 | 4752 | { |
151337e8 NC |
4753 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4754 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4755 | { |
151337e8 NC |
4756 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
4757 | } | |
4758 | else if (flag_short_refs) | |
4759 | { | |
4760 | /* Symbol is undefined and we want short ref. */ | |
4761 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4762 | } |
4763 | else | |
4764 | { | |
151337e8 NC |
4765 | /* Symbol is still undefined. Make it LONG. */ |
4766 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); | |
252b5132 RH |
4767 | } |
4768 | break; | |
151337e8 | 4769 | } |
252b5132 | 4770 | |
151337e8 | 4771 | case TAB (BRANCHBW, SZ_UNDEF): |
252b5132 | 4772 | { |
151337e8 NC |
4773 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4774 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4775 | { |
151337e8 | 4776 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
252b5132 RH |
4777 | } |
4778 | else | |
4779 | { | |
151337e8 NC |
4780 | /* Symbol is undefined and we don't have long branches. */ |
4781 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4782 | } |
4783 | break; | |
151337e8 | 4784 | } |
252b5132 | 4785 | |
151337e8 | 4786 | case TAB (FBRANCH, SZ_UNDEF): |
151337e8 NC |
4787 | case TAB (DBCCLBR, SZ_UNDEF): |
4788 | case TAB (DBCCABSJ, SZ_UNDEF): | |
5c65dbc1 | 4789 | case TAB (PCREL1632, SZ_UNDEF): |
252b5132 | 4790 | { |
8ec6253e NC |
4791 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment |
4792 | && relaxable_symbol (fragP->fr_symbol)) | |
151337e8 | 4793 | || flag_short_refs) |
252b5132 | 4794 | { |
151337e8 | 4795 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); |
252b5132 RH |
4796 | } |
4797 | else | |
4798 | { | |
151337e8 | 4799 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); |
252b5132 RH |
4800 | } |
4801 | break; | |
151337e8 | 4802 | } |
81d4177b | 4803 | |
252b5132 RH |
4804 | case TAB (PCINDEX, SZ_UNDEF): |
4805 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
151337e8 | 4806 | && relaxable_symbol (fragP->fr_symbol))) |
252b5132 RH |
4807 | { |
4808 | fragP->fr_subtype = TAB (PCINDEX, BYTE); | |
4809 | } | |
4810 | else | |
4811 | { | |
4812 | fragP->fr_subtype = TAB (PCINDEX, LONG); | |
252b5132 RH |
4813 | } |
4814 | break; | |
4815 | ||
151337e8 NC |
4816 | case TAB (ABSTOPCREL, SZ_UNDEF): |
4817 | { | |
4818 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
4819 | && relaxable_symbol (fragP->fr_symbol))) | |
4820 | { | |
4821 | fragP->fr_subtype = TAB (ABSTOPCREL, SHORT); | |
151337e8 NC |
4822 | } |
4823 | else | |
4824 | { | |
4825 | fragP->fr_subtype = TAB (ABSTOPCREL, LONG); | |
151337e8 NC |
4826 | } |
4827 | break; | |
4828 | } | |
4829 | ||
252b5132 RH |
4830 | default: |
4831 | break; | |
4832 | } | |
4833 | ||
151337e8 | 4834 | /* Now that SZ_UNDEF are taken care of, check others. */ |
252b5132 RH |
4835 | switch (fragP->fr_subtype) |
4836 | { | |
151337e8 NC |
4837 | case TAB (BRANCHBWL, BYTE): |
4838 | case TAB (BRABSJUNC, BYTE): | |
4839 | case TAB (BRABSJCOND, BYTE): | |
4840 | case TAB (BRANCHBW, BYTE): | |
252b5132 | 4841 | /* We can't do a short jump to the next instruction, so in that |
ac62c346 AM |
4842 | case we force word mode. If the symbol is at the start of a |
4843 | frag, and it is the next frag with any data in it (usually | |
4844 | this is just the next frag, but assembler listings may | |
4845 | introduce empty frags), we must use word mode. */ | |
4846 | if (fragP->fr_symbol) | |
252b5132 | 4847 | { |
ac62c346 | 4848 | fragS *sym_frag; |
252b5132 | 4849 | |
ac62c346 AM |
4850 | sym_frag = symbol_get_frag (fragP->fr_symbol); |
4851 | if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address) | |
252b5132 | 4852 | { |
ac62c346 AM |
4853 | fragS *l; |
4854 | ||
23b7f870 | 4855 | for (l = fragP->fr_next; l && l != sym_frag; l = l->fr_next) |
ac62c346 AM |
4856 | if (l->fr_fix != 0) |
4857 | break; | |
4858 | if (l == sym_frag) | |
4859 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4860 | } |
4861 | } | |
4862 | break; | |
4863 | default: | |
4864 | break; | |
4865 | } | |
ac62c346 | 4866 | return md_relax_table[fragP->fr_subtype].rlx_length; |
252b5132 RH |
4867 | } |
4868 | ||
4869 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
4870 | /* the bit-field entries in the relocation_info struct plays hell | |
4871 | with the byte-order problems of cross-assembly. So as a hack, | |
4872 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
36759679 | 4873 | you there. -KWK */ |
252b5132 RH |
4874 | /* on m68k: first 4 bytes are normal unsigned long, next three bytes |
4875 | are symbolnum, most sig. byte first. Last byte is broken up with | |
4876 | bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower | |
4877 | nibble as nuthin. (on Sun 3 at least) */ | |
4878 | /* Translate the internal relocation information into target-specific | |
92774660 | 4879 | format. */ |
252b5132 RH |
4880 | #ifdef comment |
4881 | void | |
4882 | md_ri_to_chars (the_bytes, ri) | |
4883 | char *the_bytes; | |
4884 | struct reloc_info_generic *ri; | |
4885 | { | |
36759679 | 4886 | /* This is easy. */ |
252b5132 | 4887 | md_number_to_chars (the_bytes, ri->r_address, 4); |
36759679 | 4888 | /* Now the fun stuff. */ |
252b5132 | 4889 | the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff; |
36759679 NC |
4890 | the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff; |
4891 | the_bytes[6] = ri->r_symbolnum & 0x0ff; | |
252b5132 RH |
4892 | the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) | ((ri->r_length << 5) & 0x60) | |
4893 | ((ri->r_extern << 4) & 0x10)); | |
4894 | } | |
4895 | ||
36759679 | 4896 | #endif |
252b5132 RH |
4897 | |
4898 | #ifndef BFD_ASSEMBLER | |
4899 | void | |
4900 | tc_aout_fix_to_chars (where, fixP, segment_address_in_file) | |
4901 | char *where; | |
4902 | fixS *fixP; | |
4903 | relax_addressT segment_address_in_file; | |
4904 | { | |
4905 | /* | |
4906 | * In: length of relocation (or of address) in chars: 1, 2 or 4. | |
4907 | * Out: GNU LD relocation length code: 0, 1, or 2. | |
4908 | */ | |
4909 | ||
5a38dc70 | 4910 | static const unsigned char nbytes_r_length[] = {42, 0, 1, 42, 2}; |
252b5132 RH |
4911 | long r_symbolnum; |
4912 | ||
4913 | know (fixP->fx_addsy != NULL); | |
4914 | ||
4915 | md_number_to_chars (where, | |
4916 | fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file, | |
4917 | 4); | |
4918 | ||
4919 | r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy) | |
4920 | ? S_GET_TYPE (fixP->fx_addsy) | |
4921 | : fixP->fx_addsy->sy_number); | |
4922 | ||
4923 | where[4] = (r_symbolnum >> 16) & 0x0ff; | |
4924 | where[5] = (r_symbolnum >> 8) & 0x0ff; | |
4925 | where[6] = r_symbolnum & 0x0ff; | |
4926 | where[7] = (((fixP->fx_pcrel << 7) & 0x80) | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) | | |
4927 | (((!S_IS_DEFINED (fixP->fx_addsy)) << 4) & 0x10)); | |
4928 | } | |
4929 | #endif | |
4930 | ||
4931 | #endif /* OBJ_AOUT or OBJ_BOUT */ | |
4932 | ||
4933 | #ifndef WORKING_DOT_WORD | |
5a38dc70 AM |
4934 | const int md_short_jump_size = 4; |
4935 | const int md_long_jump_size = 6; | |
252b5132 RH |
4936 | |
4937 | void | |
4938 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
4939 | char *ptr; | |
4940 | addressT from_addr, to_addr; | |
36823076 AS |
4941 | fragS *frag ATTRIBUTE_UNUSED; |
4942 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
252b5132 RH |
4943 | { |
4944 | valueT offset; | |
4945 | ||
4946 | offset = to_addr - (from_addr + 2); | |
4947 | ||
4948 | md_number_to_chars (ptr, (valueT) 0x6000, 2); | |
4949 | md_number_to_chars (ptr + 2, (valueT) offset, 2); | |
4950 | } | |
4951 | ||
4952 | void | |
4953 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
4954 | char *ptr; | |
4955 | addressT from_addr, to_addr; | |
4956 | fragS *frag; | |
4957 | symbolS *to_symbol; | |
4958 | { | |
4959 | valueT offset; | |
4960 | ||
4961 | if (!HAVE_LONG_BRANCH(current_architecture)) | |
4962 | { | |
36759679 NC |
4963 | if (flag_keep_pcrel) |
4964 | as_fatal(_("Tried to convert PC relative branch to absolute jump")); | |
252b5132 RH |
4965 | offset = to_addr - S_GET_VALUE (to_symbol); |
4966 | md_number_to_chars (ptr, (valueT) 0x4EF9, 2); | |
4967 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
4968 | fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0, | |
4969 | 0, NO_RELOC); | |
4970 | } | |
4971 | else | |
4972 | { | |
4973 | offset = to_addr - (from_addr + 2); | |
4974 | md_number_to_chars (ptr, (valueT) 0x60ff, 2); | |
4975 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
4976 | } | |
4977 | } | |
4978 | ||
4979 | #endif | |
4980 | ||
4981 | /* Different values of OK tell what its OK to return. Things that | |
4982 | aren't OK are an error (what a shock, no?) | |
4983 | ||
4984 | 0: Everything is OK | |
3e602632 NC |
4985 | 10: Absolute 1:8 only |
4986 | 20: Absolute 0:7 only | |
4987 | 30: absolute 0:15 only | |
4988 | 40: Absolute 0:31 only | |
4989 | 50: absolute 0:127 only | |
252b5132 | 4990 | 55: absolute -64:63 only |
3e602632 NC |
4991 | 60: absolute -128:127 only |
4992 | 70: absolute 0:4095 only | |
4993 | 80: absolute -1, 1:7 only | |
4994 | 90: No bignums. */ | |
252b5132 RH |
4995 | |
4996 | static int | |
4997 | get_num (exp, ok) | |
4998 | struct m68k_exp *exp; | |
4999 | int ok; | |
5000 | { | |
5001 | if (exp->exp.X_op == O_absent) | |
5002 | { | |
36759679 | 5003 | /* Do the same thing the VAX asm does. */ |
252b5132 RH |
5004 | op (exp) = O_constant; |
5005 | adds (exp) = 0; | |
5006 | subs (exp) = 0; | |
5007 | offs (exp) = 0; | |
5008 | if (ok == 10) | |
5009 | { | |
5010 | as_warn (_("expression out of range: defaulting to 1")); | |
5011 | offs (exp) = 1; | |
5012 | } | |
5013 | } | |
5014 | else if (exp->exp.X_op == O_constant) | |
5015 | { | |
5016 | switch (ok) | |
5017 | { | |
5018 | case 10: | |
5019 | if (offs (exp) < 1 || offs (exp) > 8) | |
5020 | { | |
5021 | as_warn (_("expression out of range: defaulting to 1")); | |
5022 | offs (exp) = 1; | |
5023 | } | |
5024 | break; | |
5025 | case 20: | |
5026 | if (offs (exp) < 0 || offs (exp) > 7) | |
5027 | goto outrange; | |
5028 | break; | |
5029 | case 30: | |
5030 | if (offs (exp) < 0 || offs (exp) > 15) | |
5031 | goto outrange; | |
5032 | break; | |
5033 | case 40: | |
5034 | if (offs (exp) < 0 || offs (exp) > 32) | |
5035 | goto outrange; | |
5036 | break; | |
5037 | case 50: | |
5038 | if (offs (exp) < 0 || offs (exp) > 127) | |
5039 | goto outrange; | |
5040 | break; | |
5041 | case 55: | |
5042 | if (offs (exp) < -64 || offs (exp) > 63) | |
5043 | goto outrange; | |
5044 | break; | |
5045 | case 60: | |
5046 | if (offs (exp) < -128 || offs (exp) > 127) | |
5047 | goto outrange; | |
5048 | break; | |
5049 | case 70: | |
5050 | if (offs (exp) < 0 || offs (exp) > 4095) | |
5051 | { | |
5052 | outrange: | |
5053 | as_warn (_("expression out of range: defaulting to 0")); | |
5054 | offs (exp) = 0; | |
5055 | } | |
5056 | break; | |
3e602632 NC |
5057 | case 80: |
5058 | if (offs (exp) < -1 | |
5059 | || offs (exp) > 7 | |
5060 | || offs (exp) == 0) | |
5061 | { | |
5062 | as_warn (_("expression out of range: defaulting to 1")); | |
5063 | offs (exp) = 1; | |
5064 | } | |
5065 | break; | |
252b5132 RH |
5066 | default: |
5067 | break; | |
5068 | } | |
5069 | } | |
5070 | else if (exp->exp.X_op == O_big) | |
5071 | { | |
36759679 | 5072 | if (offs (exp) <= 0 /* flonum. */ |
3e602632 | 5073 | && (ok == 90 /* no bignums */ |
36759679 | 5074 | || (ok > 10 /* Small-int ranges including 0 ok. */ |
252b5132 RH |
5075 | /* If we have a flonum zero, a zero integer should |
5076 | do as well (e.g., in moveq). */ | |
5077 | && generic_floating_point_number.exponent == 0 | |
5078 | && generic_floating_point_number.low[0] == 0))) | |
5079 | { | |
36759679 | 5080 | /* HACK! Turn it into a long. */ |
252b5132 RH |
5081 | LITTLENUM_TYPE words[6]; |
5082 | ||
36759679 | 5083 | gen_to_words (words, 2, 8L); /* These numbers are magic! */ |
252b5132 RH |
5084 | op (exp) = O_constant; |
5085 | adds (exp) = 0; | |
5086 | subs (exp) = 0; | |
5087 | offs (exp) = words[1] | (words[0] << 16); | |
5088 | } | |
5089 | else if (ok != 0) | |
5090 | { | |
5091 | op (exp) = O_constant; | |
5092 | adds (exp) = 0; | |
5093 | subs (exp) = 0; | |
5094 | offs (exp) = (ok == 10) ? 1 : 0; | |
5095 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
5096 | offs (exp)); | |
5097 | } | |
5098 | } | |
5099 | else | |
5100 | { | |
3e602632 | 5101 | if (ok >= 10 && ok <= 80) |
252b5132 RH |
5102 | { |
5103 | op (exp) = O_constant; | |
5104 | adds (exp) = 0; | |
5105 | subs (exp) = 0; | |
5106 | offs (exp) = (ok == 10) ? 1 : 0; | |
5107 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
5108 | offs (exp)); | |
5109 | } | |
5110 | } | |
5111 | ||
5112 | if (exp->size != SIZE_UNSPEC) | |
5113 | { | |
5114 | switch (exp->size) | |
5115 | { | |
5116 | case SIZE_UNSPEC: | |
5117 | case SIZE_LONG: | |
5118 | break; | |
5119 | case SIZE_BYTE: | |
5120 | if (!isbyte (offs (exp))) | |
5121 | as_warn (_("expression doesn't fit in BYTE")); | |
5122 | break; | |
5123 | case SIZE_WORD: | |
5124 | if (!isword (offs (exp))) | |
5125 | as_warn (_("expression doesn't fit in WORD")); | |
5126 | break; | |
5127 | } | |
5128 | } | |
5129 | ||
5130 | return offs (exp); | |
5131 | } | |
5132 | ||
5133 | /* These are the back-ends for the various machine dependent pseudo-ops. */ | |
5134 | ||
5135 | static void | |
5136 | s_data1 (ignore) | |
36823076 | 5137 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5138 | { |
5139 | subseg_set (data_section, 1); | |
5140 | demand_empty_rest_of_line (); | |
5141 | } | |
5142 | ||
5143 | static void | |
5144 | s_data2 (ignore) | |
36823076 | 5145 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5146 | { |
5147 | subseg_set (data_section, 2); | |
5148 | demand_empty_rest_of_line (); | |
5149 | } | |
5150 | ||
5151 | static void | |
5152 | s_bss (ignore) | |
36823076 | 5153 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5154 | { |
5155 | /* We don't support putting frags in the BSS segment, we fake it | |
5156 | by marking in_bss, then looking at s_skip for clues. */ | |
5157 | ||
5158 | subseg_set (bss_section, 0); | |
5159 | demand_empty_rest_of_line (); | |
5160 | } | |
5161 | ||
5162 | static void | |
5163 | s_even (ignore) | |
36823076 | 5164 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5165 | { |
5166 | register int temp; | |
5167 | register long temp_fill; | |
5168 | ||
5169 | temp = 1; /* JF should be 2? */ | |
5170 | temp_fill = get_absolute_expression (); | |
92774660 | 5171 | if (!need_pass_2) /* Never make frag if expect extra pass. */ |
252b5132 RH |
5172 | frag_align (temp, (int) temp_fill, 0); |
5173 | demand_empty_rest_of_line (); | |
5174 | record_alignment (now_seg, temp); | |
5175 | } | |
5176 | ||
5177 | static void | |
5178 | s_proc (ignore) | |
36823076 | 5179 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5180 | { |
5181 | demand_empty_rest_of_line (); | |
5182 | } | |
5183 | \f | |
5184 | /* Pseudo-ops handled for MRI compatibility. */ | |
5185 | ||
5186 | /* This function returns non-zero if the argument is a conditional | |
5187 | pseudo-op. This is called when checking whether a pending | |
5188 | alignment is needed. */ | |
5189 | ||
5190 | int | |
5191 | m68k_conditional_pseudoop (pop) | |
5192 | pseudo_typeS *pop; | |
5193 | { | |
5194 | return (pop->poc_handler == s_mri_if | |
5195 | || pop->poc_handler == s_mri_else); | |
5196 | } | |
5197 | ||
5198 | /* Handle an MRI style chip specification. */ | |
5199 | ||
5200 | static void | |
5201 | mri_chip () | |
5202 | { | |
5203 | char *s; | |
5204 | char c; | |
5205 | int i; | |
5206 | ||
5207 | s = input_line_pointer; | |
5208 | /* We can't use get_symbol_end since the processor names are not proper | |
5209 | symbols. */ | |
5210 | while (is_part_of_name (c = *input_line_pointer++)) | |
5211 | ; | |
5212 | *--input_line_pointer = 0; | |
5213 | for (i = 0; i < n_archs; i++) | |
5214 | if (strcasecmp (s, archs[i].name) == 0) | |
5215 | break; | |
5216 | if (i >= n_archs) | |
5217 | { | |
5218 | as_bad (_("%s: unrecognized processor name"), s); | |
5219 | *input_line_pointer = c; | |
5220 | ignore_rest_of_line (); | |
5221 | return; | |
5222 | } | |
5223 | *input_line_pointer = c; | |
5224 | ||
5225 | if (*input_line_pointer == '/') | |
5226 | current_architecture = 0; | |
5227 | else | |
5228 | current_architecture &= m68881 | m68851; | |
5229 | current_architecture |= archs[i].arch; | |
5230 | ||
5231 | while (*input_line_pointer == '/') | |
5232 | { | |
5233 | ++input_line_pointer; | |
5234 | s = input_line_pointer; | |
5235 | /* We can't use get_symbol_end since the processor names are not | |
5236 | proper symbols. */ | |
5237 | while (is_part_of_name (c = *input_line_pointer++)) | |
5238 | ; | |
5239 | *--input_line_pointer = 0; | |
5240 | if (strcmp (s, "68881") == 0) | |
5241 | current_architecture |= m68881; | |
5242 | else if (strcmp (s, "68851") == 0) | |
5243 | current_architecture |= m68851; | |
5244 | *input_line_pointer = c; | |
5245 | } | |
5246 | ||
5247 | /* Update info about available control registers. */ | |
5248 | select_control_regs (); | |
5249 | } | |
5250 | ||
5251 | /* The MRI CHIP pseudo-op. */ | |
5252 | ||
5253 | static void | |
5254 | s_chip (ignore) | |
36823076 | 5255 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5256 | { |
5257 | char *stop = NULL; | |
5258 | char stopc; | |
5259 | ||
5260 | if (flag_mri) | |
5261 | stop = mri_comment_field (&stopc); | |
5262 | mri_chip (); | |
5263 | if (flag_mri) | |
5264 | mri_comment_end (stop, stopc); | |
5265 | demand_empty_rest_of_line (); | |
5266 | } | |
5267 | ||
5268 | /* The MRI FOPT pseudo-op. */ | |
5269 | ||
5270 | static void | |
5271 | s_fopt (ignore) | |
36823076 | 5272 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5273 | { |
5274 | SKIP_WHITESPACE (); | |
5275 | ||
5276 | if (strncasecmp (input_line_pointer, "ID=", 3) == 0) | |
5277 | { | |
5278 | int temp; | |
5279 | ||
5280 | input_line_pointer += 3; | |
5281 | temp = get_absolute_expression (); | |
5282 | if (temp < 0 || temp > 7) | |
5283 | as_bad (_("bad coprocessor id")); | |
5284 | else | |
5285 | m68k_float_copnum = COP0 + temp; | |
5286 | } | |
5287 | else | |
5288 | { | |
5289 | as_bad (_("unrecognized fopt option")); | |
5290 | ignore_rest_of_line (); | |
5291 | return; | |
5292 | } | |
5293 | ||
5294 | demand_empty_rest_of_line (); | |
5295 | } | |
5296 | ||
5297 | /* The structure used to handle the MRI OPT pseudo-op. */ | |
5298 | ||
5299 | struct opt_action | |
5300 | { | |
5301 | /* The name of the option. */ | |
5302 | const char *name; | |
5303 | ||
5304 | /* If this is not NULL, just call this function. The first argument | |
5305 | is the ARG field of this structure, the second argument is | |
5306 | whether the option was negated. */ | |
5307 | void (*pfn) PARAMS ((int arg, int on)); | |
5308 | ||
5309 | /* If this is not NULL, and the PFN field is NULL, set the variable | |
5310 | this points to. Set it to the ARG field if the option was not | |
5311 | negated, and the NOTARG field otherwise. */ | |
5312 | int *pvar; | |
5313 | ||
5314 | /* The value to pass to PFN or to assign to *PVAR. */ | |
5315 | int arg; | |
5316 | ||
5317 | /* The value to assign to *PVAR if the option is negated. If PFN is | |
5318 | NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then | |
5319 | the option may not be negated. */ | |
5320 | int notarg; | |
5321 | }; | |
5322 | ||
5323 | /* The table used to handle the MRI OPT pseudo-op. */ | |
5324 | ||
5325 | static void skip_to_comma PARAMS ((int, int)); | |
5326 | static void opt_nest PARAMS ((int, int)); | |
5327 | static void opt_chip PARAMS ((int, int)); | |
5328 | static void opt_list PARAMS ((int, int)); | |
5329 | static void opt_list_symbols PARAMS ((int, int)); | |
5330 | ||
5331 | static const struct opt_action opt_table[] = | |
5332 | { | |
5333 | { "abspcadd", 0, &m68k_abspcadd, 1, 0 }, | |
5334 | ||
5335 | /* We do relaxing, so there is little use for these options. */ | |
5336 | { "b", 0, 0, 0, 0 }, | |
5337 | { "brs", 0, 0, 0, 0 }, | |
5338 | { "brb", 0, 0, 0, 0 }, | |
5339 | { "brl", 0, 0, 0, 0 }, | |
5340 | { "brw", 0, 0, 0, 0 }, | |
5341 | ||
5342 | { "c", 0, 0, 0, 0 }, | |
5343 | { "cex", 0, 0, 0, 0 }, | |
5344 | { "case", 0, &symbols_case_sensitive, 1, 0 }, | |
5345 | { "cl", 0, 0, 0, 0 }, | |
5346 | { "cre", 0, 0, 0, 0 }, | |
5347 | { "d", 0, &flag_keep_locals, 1, 0 }, | |
5348 | { "e", 0, 0, 0, 0 }, | |
5349 | { "f", 0, &flag_short_refs, 1, 0 }, | |
5350 | { "frs", 0, &flag_short_refs, 1, 0 }, | |
5351 | { "frl", 0, &flag_short_refs, 0, 1 }, | |
5352 | { "g", 0, 0, 0, 0 }, | |
5353 | { "i", 0, 0, 0, 0 }, | |
5354 | { "m", 0, 0, 0, 0 }, | |
5355 | { "mex", 0, 0, 0, 0 }, | |
5356 | { "mc", 0, 0, 0, 0 }, | |
5357 | { "md", 0, 0, 0, 0 }, | |
5358 | { "nest", opt_nest, 0, 0, 0 }, | |
5359 | { "next", skip_to_comma, 0, 0, 0 }, | |
5360 | { "o", 0, 0, 0, 0 }, | |
5361 | { "old", 0, 0, 0, 0 }, | |
5362 | { "op", skip_to_comma, 0, 0, 0 }, | |
5363 | { "pco", 0, 0, 0, 0 }, | |
5364 | { "p", opt_chip, 0, 0, 0 }, | |
5365 | { "pcr", 0, 0, 0, 0 }, | |
5366 | { "pcs", 0, 0, 0, 0 }, | |
5367 | { "r", 0, 0, 0, 0 }, | |
5368 | { "quick", 0, &m68k_quick, 1, 0 }, | |
5369 | { "rel32", 0, &m68k_rel32, 1, 0 }, | |
5370 | { "s", opt_list, 0, 0, 0 }, | |
5371 | { "t", opt_list_symbols, 0, 0, 0 }, | |
5372 | { "w", 0, &flag_no_warnings, 0, 1 }, | |
5373 | { "x", 0, 0, 0, 0 } | |
5374 | }; | |
5375 | ||
8fce3f5e | 5376 | #define OPTCOUNT ((int) (sizeof opt_table / sizeof opt_table[0])) |
252b5132 RH |
5377 | |
5378 | /* The MRI OPT pseudo-op. */ | |
5379 | ||
5380 | static void | |
5381 | s_opt (ignore) | |
36823076 | 5382 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5383 | { |
5384 | do | |
5385 | { | |
5386 | int t; | |
5387 | char *s; | |
5388 | char c; | |
5389 | int i; | |
5390 | const struct opt_action *o; | |
5391 | ||
5392 | SKIP_WHITESPACE (); | |
5393 | ||
5394 | t = 1; | |
5395 | if (*input_line_pointer == '-') | |
5396 | { | |
5397 | ++input_line_pointer; | |
5398 | t = 0; | |
5399 | } | |
5400 | else if (strncasecmp (input_line_pointer, "NO", 2) == 0) | |
5401 | { | |
5402 | input_line_pointer += 2; | |
5403 | t = 0; | |
5404 | } | |
5405 | ||
5406 | s = input_line_pointer; | |
5407 | c = get_symbol_end (); | |
5408 | ||
5409 | for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++) | |
5410 | { | |
5411 | if (strcasecmp (s, o->name) == 0) | |
5412 | { | |
5413 | if (o->pfn) | |
5414 | { | |
5415 | /* Restore input_line_pointer now in case the option | |
5416 | takes arguments. */ | |
5417 | *input_line_pointer = c; | |
5418 | (*o->pfn) (o->arg, t); | |
5419 | } | |
5420 | else if (o->pvar != NULL) | |
5421 | { | |
5422 | if (! t && o->arg == o->notarg) | |
5423 | as_bad (_("option `%s' may not be negated"), s); | |
5424 | *input_line_pointer = c; | |
5425 | *o->pvar = t ? o->arg : o->notarg; | |
5426 | } | |
5427 | else | |
5428 | *input_line_pointer = c; | |
5429 | break; | |
5430 | } | |
5431 | } | |
5432 | if (i >= OPTCOUNT) | |
5433 | { | |
5434 | as_bad (_("option `%s' not recognized"), s); | |
5435 | *input_line_pointer = c; | |
5436 | } | |
5437 | } | |
5438 | while (*input_line_pointer++ == ','); | |
5439 | ||
5440 | /* Move back to terminating character. */ | |
5441 | --input_line_pointer; | |
5442 | demand_empty_rest_of_line (); | |
5443 | } | |
5444 | ||
5445 | /* Skip ahead to a comma. This is used for OPT options which we do | |
67c1ffbe | 5446 | not support and which take arguments. */ |
252b5132 RH |
5447 | |
5448 | static void | |
5449 | skip_to_comma (arg, on) | |
36823076 AS |
5450 | int arg ATTRIBUTE_UNUSED; |
5451 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5452 | { |
5453 | while (*input_line_pointer != ',' | |
5454 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5455 | ++input_line_pointer; | |
5456 | } | |
5457 | ||
5458 | /* Handle the OPT NEST=depth option. */ | |
5459 | ||
5460 | static void | |
5461 | opt_nest (arg, on) | |
36823076 AS |
5462 | int arg ATTRIBUTE_UNUSED; |
5463 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5464 | { |
5465 | if (*input_line_pointer != '=') | |
5466 | { | |
5467 | as_bad (_("bad format of OPT NEST=depth")); | |
5468 | return; | |
5469 | } | |
5470 | ||
5471 | ++input_line_pointer; | |
5472 | max_macro_nest = get_absolute_expression (); | |
5473 | } | |
5474 | ||
5475 | /* Handle the OPT P=chip option. */ | |
5476 | ||
5477 | static void | |
5478 | opt_chip (arg, on) | |
36823076 AS |
5479 | int arg ATTRIBUTE_UNUSED; |
5480 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5481 | { |
5482 | if (*input_line_pointer != '=') | |
5483 | { | |
5484 | /* This is just OPT P, which we do not support. */ | |
5485 | return; | |
5486 | } | |
5487 | ||
5488 | ++input_line_pointer; | |
5489 | mri_chip (); | |
5490 | } | |
5491 | ||
5492 | /* Handle the OPT S option. */ | |
5493 | ||
5494 | static void | |
5495 | opt_list (arg, on) | |
36823076 | 5496 | int arg ATTRIBUTE_UNUSED; |
252b5132 RH |
5497 | int on; |
5498 | { | |
5499 | listing_list (on); | |
5500 | } | |
5501 | ||
5502 | /* Handle the OPT T option. */ | |
5503 | ||
5504 | static void | |
5505 | opt_list_symbols (arg, on) | |
36823076 | 5506 | int arg ATTRIBUTE_UNUSED; |
252b5132 RH |
5507 | int on; |
5508 | { | |
5509 | if (on) | |
5510 | listing |= LISTING_SYMBOLS; | |
5511 | else | |
8a104df9 | 5512 | listing &= ~LISTING_SYMBOLS; |
252b5132 RH |
5513 | } |
5514 | ||
5515 | /* Handle the MRI REG pseudo-op. */ | |
5516 | ||
5517 | static void | |
5518 | s_reg (ignore) | |
36823076 | 5519 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5520 | { |
5521 | char *s; | |
5522 | int c; | |
5523 | struct m68k_op rop; | |
5524 | int mask; | |
5525 | char *stop = NULL; | |
5526 | char stopc; | |
5527 | ||
5528 | if (line_label == NULL) | |
5529 | { | |
5530 | as_bad (_("missing label")); | |
5531 | ignore_rest_of_line (); | |
5532 | return; | |
5533 | } | |
5534 | ||
5535 | if (flag_mri) | |
5536 | stop = mri_comment_field (&stopc); | |
5537 | ||
5538 | SKIP_WHITESPACE (); | |
5539 | ||
5540 | s = input_line_pointer; | |
3882b010 | 5541 | while (ISALNUM (*input_line_pointer) |
252b5132 RH |
5542 | #ifdef REGISTER_PREFIX |
5543 | || *input_line_pointer == REGISTER_PREFIX | |
5544 | #endif | |
5545 | || *input_line_pointer == '/' | |
5546 | || *input_line_pointer == '-') | |
5547 | ++input_line_pointer; | |
5548 | c = *input_line_pointer; | |
5549 | *input_line_pointer = '\0'; | |
5550 | ||
5551 | if (m68k_ip_op (s, &rop) != 0) | |
5552 | { | |
5553 | if (rop.error == NULL) | |
5554 | as_bad (_("bad register list")); | |
5555 | else | |
5556 | as_bad (_("bad register list: %s"), rop.error); | |
5557 | *input_line_pointer = c; | |
5558 | ignore_rest_of_line (); | |
5559 | return; | |
5560 | } | |
5561 | ||
5562 | *input_line_pointer = c; | |
5563 | ||
5564 | if (rop.mode == REGLST) | |
5565 | mask = rop.mask; | |
5566 | else if (rop.mode == DREG) | |
5567 | mask = 1 << (rop.reg - DATA0); | |
5568 | else if (rop.mode == AREG) | |
5569 | mask = 1 << (rop.reg - ADDR0 + 8); | |
5570 | else if (rop.mode == FPREG) | |
5571 | mask = 1 << (rop.reg - FP0 + 16); | |
5572 | else if (rop.mode == CONTROL | |
5573 | && rop.reg == FPI) | |
5574 | mask = 1 << 24; | |
5575 | else if (rop.mode == CONTROL | |
5576 | && rop.reg == FPS) | |
5577 | mask = 1 << 25; | |
5578 | else if (rop.mode == CONTROL | |
5579 | && rop.reg == FPC) | |
5580 | mask = 1 << 26; | |
5581 | else | |
5582 | { | |
5583 | as_bad (_("bad register list")); | |
5584 | ignore_rest_of_line (); | |
5585 | return; | |
5586 | } | |
5587 | ||
5588 | S_SET_SEGMENT (line_label, reg_section); | |
5589 | S_SET_VALUE (line_label, ~mask); | |
49309057 | 5590 | symbol_set_frag (line_label, &zero_address_frag); |
252b5132 RH |
5591 | |
5592 | if (flag_mri) | |
5593 | mri_comment_end (stop, stopc); | |
5594 | ||
5595 | demand_empty_rest_of_line (); | |
5596 | } | |
5597 | ||
5598 | /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */ | |
5599 | ||
5600 | struct save_opts | |
5601 | { | |
5602 | struct save_opts *next; | |
5603 | int abspcadd; | |
5604 | int symbols_case_sensitive; | |
5605 | int keep_locals; | |
5606 | int short_refs; | |
5607 | int architecture; | |
5608 | int quick; | |
5609 | int rel32; | |
5610 | int listing; | |
5611 | int no_warnings; | |
5612 | /* FIXME: We don't save OPT S. */ | |
5613 | }; | |
5614 | ||
5615 | /* This variable holds the stack of saved options. */ | |
5616 | ||
5617 | static struct save_opts *save_stack; | |
5618 | ||
5619 | /* The MRI SAVE pseudo-op. */ | |
5620 | ||
5621 | static void | |
5622 | s_save (ignore) | |
36823076 | 5623 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5624 | { |
5625 | struct save_opts *s; | |
5626 | ||
5627 | s = (struct save_opts *) xmalloc (sizeof (struct save_opts)); | |
5628 | s->abspcadd = m68k_abspcadd; | |
5629 | s->symbols_case_sensitive = symbols_case_sensitive; | |
5630 | s->keep_locals = flag_keep_locals; | |
5631 | s->short_refs = flag_short_refs; | |
5632 | s->architecture = current_architecture; | |
5633 | s->quick = m68k_quick; | |
5634 | s->rel32 = m68k_rel32; | |
5635 | s->listing = listing; | |
5636 | s->no_warnings = flag_no_warnings; | |
5637 | ||
5638 | s->next = save_stack; | |
5639 | save_stack = s; | |
5640 | ||
5641 | demand_empty_rest_of_line (); | |
5642 | } | |
5643 | ||
5644 | /* The MRI RESTORE pseudo-op. */ | |
5645 | ||
5646 | static void | |
5647 | s_restore (ignore) | |
36823076 | 5648 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5649 | { |
5650 | struct save_opts *s; | |
5651 | ||
5652 | if (save_stack == NULL) | |
5653 | { | |
5654 | as_bad (_("restore without save")); | |
5655 | ignore_rest_of_line (); | |
5656 | return; | |
5657 | } | |
5658 | ||
5659 | s = save_stack; | |
5660 | save_stack = s->next; | |
5661 | ||
5662 | m68k_abspcadd = s->abspcadd; | |
5663 | symbols_case_sensitive = s->symbols_case_sensitive; | |
5664 | flag_keep_locals = s->keep_locals; | |
5665 | flag_short_refs = s->short_refs; | |
5666 | current_architecture = s->architecture; | |
5667 | m68k_quick = s->quick; | |
5668 | m68k_rel32 = s->rel32; | |
5669 | listing = s->listing; | |
5670 | flag_no_warnings = s->no_warnings; | |
5671 | ||
5672 | free (s); | |
5673 | ||
5674 | demand_empty_rest_of_line (); | |
5675 | } | |
5676 | ||
5677 | /* Types of MRI structured control directives. */ | |
5678 | ||
5679 | enum mri_control_type | |
5680 | { | |
5681 | mri_for, | |
5682 | mri_if, | |
5683 | mri_repeat, | |
5684 | mri_while | |
5685 | }; | |
5686 | ||
5687 | /* This structure is used to stack the MRI structured control | |
5688 | directives. */ | |
5689 | ||
5690 | struct mri_control_info | |
5691 | { | |
5692 | /* The directive within which this one is enclosed. */ | |
5693 | struct mri_control_info *outer; | |
5694 | ||
5695 | /* The type of directive. */ | |
5696 | enum mri_control_type type; | |
5697 | ||
5698 | /* Whether an ELSE has been in an IF. */ | |
5699 | int else_seen; | |
5700 | ||
5701 | /* The add or sub statement at the end of a FOR. */ | |
5702 | char *incr; | |
5703 | ||
5704 | /* The label of the top of a FOR or REPEAT loop. */ | |
5705 | char *top; | |
5706 | ||
5707 | /* The label to jump to for the next iteration, or the else | |
5708 | expression of a conditional. */ | |
5709 | char *next; | |
5710 | ||
5711 | /* The label to jump to to break out of the loop, or the label past | |
5712 | the end of a conditional. */ | |
5713 | char *bottom; | |
5714 | }; | |
5715 | ||
5716 | /* The stack of MRI structured control directives. */ | |
5717 | ||
5718 | static struct mri_control_info *mri_control_stack; | |
5719 | ||
5720 | /* The current MRI structured control directive index number, used to | |
5721 | generate label names. */ | |
5722 | ||
5723 | static int mri_control_index; | |
5724 | ||
5725 | /* Some function prototypes. */ | |
5726 | ||
5727 | static void mri_assemble PARAMS ((char *)); | |
5728 | static char *mri_control_label PARAMS ((void)); | |
5729 | static struct mri_control_info *push_mri_control | |
5730 | PARAMS ((enum mri_control_type)); | |
5731 | static void pop_mri_control PARAMS ((void)); | |
5732 | static int parse_mri_condition PARAMS ((int *)); | |
5733 | static int parse_mri_control_operand | |
5734 | PARAMS ((int *, char **, char **, char **, char **)); | |
5735 | static int swap_mri_condition PARAMS ((int)); | |
5736 | static int reverse_mri_condition PARAMS ((int)); | |
5737 | static void build_mri_control_operand | |
5738 | PARAMS ((int, int, char *, char *, char *, char *, const char *, | |
5739 | const char *, int)); | |
5740 | static void parse_mri_control_expression | |
5741 | PARAMS ((char *, int, const char *, const char *, int)); | |
5742 | ||
5743 | /* Assemble an instruction for an MRI structured control directive. */ | |
5744 | ||
5745 | static void | |
5746 | mri_assemble (str) | |
5747 | char *str; | |
5748 | { | |
5749 | char *s; | |
5750 | ||
5751 | /* md_assemble expects the opcode to be in lower case. */ | |
5752 | for (s = str; *s != ' ' && *s != '\0'; s++) | |
3882b010 | 5753 | *s = TOLOWER (*s); |
252b5132 RH |
5754 | |
5755 | md_assemble (str); | |
5756 | } | |
5757 | ||
5758 | /* Generate a new MRI label structured control directive label name. */ | |
5759 | ||
5760 | static char * | |
5761 | mri_control_label () | |
5762 | { | |
5763 | char *n; | |
5764 | ||
5765 | n = (char *) xmalloc (20); | |
5766 | sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index); | |
5767 | ++mri_control_index; | |
5768 | return n; | |
5769 | } | |
5770 | ||
5771 | /* Create a new MRI structured control directive. */ | |
5772 | ||
5773 | static struct mri_control_info * | |
5774 | push_mri_control (type) | |
5775 | enum mri_control_type type; | |
5776 | { | |
5777 | struct mri_control_info *n; | |
5778 | ||
5779 | n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info)); | |
5780 | ||
5781 | n->type = type; | |
5782 | n->else_seen = 0; | |
5783 | if (type == mri_if || type == mri_while) | |
5784 | n->top = NULL; | |
5785 | else | |
5786 | n->top = mri_control_label (); | |
5787 | n->next = mri_control_label (); | |
5788 | n->bottom = mri_control_label (); | |
5789 | ||
5790 | n->outer = mri_control_stack; | |
5791 | mri_control_stack = n; | |
5792 | ||
5793 | return n; | |
5794 | } | |
5795 | ||
5796 | /* Pop off the stack of MRI structured control directives. */ | |
5797 | ||
5798 | static void | |
5799 | pop_mri_control () | |
5800 | { | |
5801 | struct mri_control_info *n; | |
5802 | ||
5803 | n = mri_control_stack; | |
5804 | mri_control_stack = n->outer; | |
5805 | if (n->top != NULL) | |
5806 | free (n->top); | |
5807 | free (n->next); | |
5808 | free (n->bottom); | |
5809 | free (n); | |
5810 | } | |
5811 | ||
5812 | /* Recognize a condition code in an MRI structured control expression. */ | |
5813 | ||
5814 | static int | |
5815 | parse_mri_condition (pcc) | |
5816 | int *pcc; | |
5817 | { | |
5818 | char c1, c2; | |
5819 | ||
5820 | know (*input_line_pointer == '<'); | |
5821 | ||
5822 | ++input_line_pointer; | |
5823 | c1 = *input_line_pointer++; | |
5824 | c2 = *input_line_pointer++; | |
5825 | ||
5826 | if (*input_line_pointer != '>') | |
5827 | { | |
5828 | as_bad (_("syntax error in structured control directive")); | |
5829 | return 0; | |
5830 | } | |
5831 | ||
5832 | ++input_line_pointer; | |
5833 | SKIP_WHITESPACE (); | |
5834 | ||
3882b010 L |
5835 | c1 = TOLOWER (c1); |
5836 | c2 = TOLOWER (c2); | |
252b5132 RH |
5837 | |
5838 | *pcc = (c1 << 8) | c2; | |
5839 | ||
5840 | return 1; | |
5841 | } | |
5842 | ||
5843 | /* Parse a single operand in an MRI structured control expression. */ | |
5844 | ||
5845 | static int | |
5846 | parse_mri_control_operand (pcc, leftstart, leftstop, rightstart, rightstop) | |
5847 | int *pcc; | |
5848 | char **leftstart; | |
5849 | char **leftstop; | |
5850 | char **rightstart; | |
5851 | char **rightstop; | |
5852 | { | |
5853 | char *s; | |
5854 | ||
5855 | SKIP_WHITESPACE (); | |
5856 | ||
5857 | *pcc = -1; | |
5858 | *leftstart = NULL; | |
5859 | *leftstop = NULL; | |
5860 | *rightstart = NULL; | |
5861 | *rightstop = NULL; | |
5862 | ||
5863 | if (*input_line_pointer == '<') | |
5864 | { | |
5865 | /* It's just a condition code. */ | |
5866 | return parse_mri_condition (pcc); | |
5867 | } | |
5868 | ||
5869 | /* Look ahead for the condition code. */ | |
5870 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5871 | { | |
5872 | if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>') | |
5873 | break; | |
5874 | } | |
5875 | if (*s == '\0') | |
5876 | { | |
5877 | as_bad (_("missing condition code in structured control directive")); | |
5878 | return 0; | |
5879 | } | |
5880 | ||
5881 | *leftstart = input_line_pointer; | |
5882 | *leftstop = s; | |
5883 | if (*leftstop > *leftstart | |
5884 | && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t')) | |
5885 | --*leftstop; | |
5886 | ||
5887 | input_line_pointer = s; | |
5888 | if (! parse_mri_condition (pcc)) | |
5889 | return 0; | |
5890 | ||
5891 | /* Look ahead for AND or OR or end of line. */ | |
5892 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5893 | { | |
e1f44d10 NC |
5894 | /* We must make sure we don't misinterpret AND/OR at the end of labels! |
5895 | if d0 <eq> #FOOAND and d1 <ne> #BAROR then | |
5896 | ^^^ ^^ */ | |
8a104df9 KH |
5897 | if ((s == input_line_pointer |
5898 | || *(s-1) == ' ' | |
5899 | || *(s-1) == '\t') | |
5900 | && ((strncasecmp (s, "AND", 3) == 0 | |
5901 | && (s[3] == '.' || ! is_part_of_name (s[3]))) | |
5902 | || (strncasecmp (s, "OR", 2) == 0 | |
5903 | && (s[2] == '.' || ! is_part_of_name (s[2]))))) | |
5904 | break; | |
252b5132 RH |
5905 | } |
5906 | ||
5907 | *rightstart = input_line_pointer; | |
5908 | *rightstop = s; | |
5909 | if (*rightstop > *rightstart | |
5910 | && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t')) | |
5911 | --*rightstop; | |
5912 | ||
5913 | input_line_pointer = s; | |
5914 | ||
5915 | return 1; | |
5916 | } | |
5917 | ||
5918 | #define MCC(b1, b2) (((b1) << 8) | (b2)) | |
5919 | ||
5920 | /* Swap the sense of a condition. This changes the condition so that | |
5921 | it generates the same result when the operands are swapped. */ | |
5922 | ||
5923 | static int | |
5924 | swap_mri_condition (cc) | |
5925 | int cc; | |
5926 | { | |
5927 | switch (cc) | |
5928 | { | |
5929 | case MCC ('h', 'i'): return MCC ('c', 's'); | |
5930 | case MCC ('l', 's'): return MCC ('c', 'c'); | |
36759679 | 5931 | /* <HS> is an alias for <CC>. */ |
e1f44d10 | 5932 | case MCC ('h', 's'): |
252b5132 | 5933 | case MCC ('c', 'c'): return MCC ('l', 's'); |
36759679 | 5934 | /* <LO> is an alias for <CS>. */ |
e1f44d10 | 5935 | case MCC ('l', 'o'): |
252b5132 RH |
5936 | case MCC ('c', 's'): return MCC ('h', 'i'); |
5937 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5938 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5939 | case MCC ('g', 'e'): return MCC ('l', 'e'); | |
5940 | case MCC ('l', 't'): return MCC ('g', 't'); | |
5941 | case MCC ('g', 't'): return MCC ('l', 't'); | |
5942 | case MCC ('l', 'e'): return MCC ('g', 'e'); | |
36759679 | 5943 | /* Issue a warning for conditions we can not swap. */ |
e1f44d10 NC |
5944 | case MCC ('n', 'e'): return MCC ('n', 'e'); // no problem here |
5945 | case MCC ('e', 'q'): return MCC ('e', 'q'); // also no problem | |
5946 | case MCC ('v', 'c'): | |
5947 | case MCC ('v', 's'): | |
5948 | default : | |
5949 | as_warn (_("Condition <%c%c> in structured control directive can not be encoded correctly"), | |
5950 | (char) (cc >> 8), (char) (cc)); | |
5951 | break; | |
252b5132 RH |
5952 | } |
5953 | return cc; | |
5954 | } | |
5955 | ||
5956 | /* Reverse the sense of a condition. */ | |
5957 | ||
5958 | static int | |
5959 | reverse_mri_condition (cc) | |
5960 | int cc; | |
5961 | { | |
5962 | switch (cc) | |
5963 | { | |
5964 | case MCC ('h', 'i'): return MCC ('l', 's'); | |
5965 | case MCC ('l', 's'): return MCC ('h', 'i'); | |
e1f44d10 NC |
5966 | /* <HS> is an alias for <CC> */ |
5967 | case MCC ('h', 's'): return MCC ('l', 'o'); | |
252b5132 | 5968 | case MCC ('c', 'c'): return MCC ('c', 's'); |
e1f44d10 NC |
5969 | /* <LO> is an alias for <CS> */ |
5970 | case MCC ('l', 'o'): return MCC ('h', 's'); | |
252b5132 RH |
5971 | case MCC ('c', 's'): return MCC ('c', 'c'); |
5972 | case MCC ('n', 'e'): return MCC ('e', 'q'); | |
5973 | case MCC ('e', 'q'): return MCC ('n', 'e'); | |
5974 | case MCC ('v', 'c'): return MCC ('v', 's'); | |
5975 | case MCC ('v', 's'): return MCC ('v', 'c'); | |
5976 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5977 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5978 | case MCC ('g', 'e'): return MCC ('l', 't'); | |
5979 | case MCC ('l', 't'): return MCC ('g', 'e'); | |
5980 | case MCC ('g', 't'): return MCC ('l', 'e'); | |
5981 | case MCC ('l', 'e'): return MCC ('g', 't'); | |
5982 | } | |
5983 | return cc; | |
5984 | } | |
5985 | ||
5986 | /* Build an MRI structured control expression. This generates test | |
5987 | and branch instructions. It goes to TRUELAB if the condition is | |
5988 | true, and to FALSELAB if the condition is false. Exactly one of | |
5989 | TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL | |
5990 | is the size qualifier for the expression. EXTENT is the size to | |
5991 | use for the branch. */ | |
5992 | ||
5993 | static void | |
5994 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5995 | rightstop, truelab, falselab, extent) | |
5996 | int qual; | |
5997 | int cc; | |
5998 | char *leftstart; | |
5999 | char *leftstop; | |
6000 | char *rightstart; | |
6001 | char *rightstop; | |
6002 | const char *truelab; | |
6003 | const char *falselab; | |
6004 | int extent; | |
6005 | { | |
6006 | char *buf; | |
6007 | char *s; | |
6008 | ||
6009 | if (leftstart != NULL) | |
6010 | { | |
6011 | struct m68k_op leftop, rightop; | |
6012 | char c; | |
6013 | ||
6014 | /* Swap the compare operands, if necessary, to produce a legal | |
6015 | m68k compare instruction. Comparing a register operand with | |
6016 | a non-register operand requires the register to be on the | |
6017 | right (cmp, cmpa). Comparing an immediate value with | |
6018 | anything requires the immediate value to be on the left | |
6019 | (cmpi). */ | |
6020 | ||
6021 | c = *leftstop; | |
6022 | *leftstop = '\0'; | |
6023 | (void) m68k_ip_op (leftstart, &leftop); | |
6024 | *leftstop = c; | |
6025 | ||
6026 | c = *rightstop; | |
6027 | *rightstop = '\0'; | |
6028 | (void) m68k_ip_op (rightstart, &rightop); | |
6029 | *rightstop = c; | |
6030 | ||
6031 | if (rightop.mode == IMMED | |
6032 | || ((leftop.mode == DREG || leftop.mode == AREG) | |
6033 | && (rightop.mode != DREG && rightop.mode != AREG))) | |
6034 | { | |
6035 | char *temp; | |
6036 | ||
e1f44d10 NC |
6037 | /* Correct conditional handling: |
6038 | if #1 <lt> d0 then ;means if (1 < d0) | |
6039 | ... | |
6040 | endi | |
6041 | ||
6042 | should assemble to: | |
6043 | ||
6044 | cmp #1,d0 if we do *not* swap the operands | |
6045 | bgt true we need the swapped condition! | |
6046 | ble false | |
6047 | true: | |
6048 | ... | |
6049 | false: | |
6050 | */ | |
252b5132 RH |
6051 | temp = leftstart; |
6052 | leftstart = rightstart; | |
6053 | rightstart = temp; | |
6054 | temp = leftstop; | |
6055 | leftstop = rightstop; | |
6056 | rightstop = temp; | |
8a104df9 KH |
6057 | } |
6058 | else | |
6059 | { | |
e1f44d10 | 6060 | cc = swap_mri_condition (cc); |
252b5132 RH |
6061 | } |
6062 | } | |
6063 | ||
6064 | if (truelab == NULL) | |
6065 | { | |
6066 | cc = reverse_mri_condition (cc); | |
6067 | truelab = falselab; | |
6068 | } | |
92774660 | 6069 | |
252b5132 RH |
6070 | if (leftstart != NULL) |
6071 | { | |
6072 | buf = (char *) xmalloc (20 | |
6073 | + (leftstop - leftstart) | |
6074 | + (rightstop - rightstart)); | |
6075 | s = buf; | |
6076 | *s++ = 'c'; | |
6077 | *s++ = 'm'; | |
6078 | *s++ = 'p'; | |
6079 | if (qual != '\0') | |
3882b010 | 6080 | *s++ = TOLOWER (qual); |
252b5132 RH |
6081 | *s++ = ' '; |
6082 | memcpy (s, leftstart, leftstop - leftstart); | |
6083 | s += leftstop - leftstart; | |
6084 | *s++ = ','; | |
6085 | memcpy (s, rightstart, rightstop - rightstart); | |
6086 | s += rightstop - rightstart; | |
6087 | *s = '\0'; | |
6088 | mri_assemble (buf); | |
6089 | free (buf); | |
6090 | } | |
92774660 | 6091 | |
252b5132 RH |
6092 | buf = (char *) xmalloc (20 + strlen (truelab)); |
6093 | s = buf; | |
6094 | *s++ = 'b'; | |
6095 | *s++ = cc >> 8; | |
6096 | *s++ = cc & 0xff; | |
6097 | if (extent != '\0') | |
3882b010 | 6098 | *s++ = TOLOWER (extent); |
252b5132 RH |
6099 | *s++ = ' '; |
6100 | strcpy (s, truelab); | |
6101 | mri_assemble (buf); | |
6102 | free (buf); | |
6103 | } | |
6104 | ||
6105 | /* Parse an MRI structured control expression. This generates test | |
6106 | and branch instructions. STOP is where the expression ends. It | |
6107 | goes to TRUELAB if the condition is true, and to FALSELAB if the | |
6108 | condition is false. Exactly one of TRUELAB and FALSELAB will be | |
6109 | NULL, meaning to fall through. QUAL is the size qualifier for the | |
6110 | expression. EXTENT is the size to use for the branch. */ | |
6111 | ||
6112 | static void | |
6113 | parse_mri_control_expression (stop, qual, truelab, falselab, extent) | |
6114 | char *stop; | |
6115 | int qual; | |
6116 | const char *truelab; | |
6117 | const char *falselab; | |
6118 | int extent; | |
6119 | { | |
6120 | int c; | |
6121 | int cc; | |
6122 | char *leftstart; | |
6123 | char *leftstop; | |
6124 | char *rightstart; | |
6125 | char *rightstop; | |
6126 | ||
6127 | c = *stop; | |
6128 | *stop = '\0'; | |
6129 | ||
6130 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6131 | &rightstart, &rightstop)) | |
6132 | { | |
6133 | *stop = c; | |
6134 | return; | |
6135 | } | |
6136 | ||
6137 | if (strncasecmp (input_line_pointer, "AND", 3) == 0) | |
6138 | { | |
6139 | const char *flab; | |
6140 | ||
6141 | if (falselab != NULL) | |
6142 | flab = falselab; | |
6143 | else | |
6144 | flab = mri_control_label (); | |
6145 | ||
6146 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6147 | rightstop, (const char *) NULL, flab, extent); | |
6148 | ||
6149 | input_line_pointer += 3; | |
6150 | if (*input_line_pointer != '.' | |
6151 | || input_line_pointer[1] == '\0') | |
6152 | qual = '\0'; | |
6153 | else | |
6154 | { | |
6155 | qual = input_line_pointer[1]; | |
6156 | input_line_pointer += 2; | |
6157 | } | |
6158 | ||
6159 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6160 | &rightstart, &rightstop)) | |
6161 | { | |
6162 | *stop = c; | |
6163 | return; | |
6164 | } | |
6165 | ||
6166 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6167 | rightstop, truelab, falselab, extent); | |
6168 | ||
6169 | if (falselab == NULL) | |
6170 | colon (flab); | |
6171 | } | |
6172 | else if (strncasecmp (input_line_pointer, "OR", 2) == 0) | |
6173 | { | |
6174 | const char *tlab; | |
6175 | ||
6176 | if (truelab != NULL) | |
6177 | tlab = truelab; | |
6178 | else | |
6179 | tlab = mri_control_label (); | |
6180 | ||
6181 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6182 | rightstop, tlab, (const char *) NULL, extent); | |
6183 | ||
6184 | input_line_pointer += 2; | |
6185 | if (*input_line_pointer != '.' | |
6186 | || input_line_pointer[1] == '\0') | |
6187 | qual = '\0'; | |
6188 | else | |
6189 | { | |
6190 | qual = input_line_pointer[1]; | |
6191 | input_line_pointer += 2; | |
6192 | } | |
6193 | ||
6194 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6195 | &rightstart, &rightstop)) | |
6196 | { | |
6197 | *stop = c; | |
6198 | return; | |
6199 | } | |
6200 | ||
6201 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6202 | rightstop, truelab, falselab, extent); | |
6203 | ||
6204 | if (truelab == NULL) | |
6205 | colon (tlab); | |
6206 | } | |
6207 | else | |
6208 | { | |
6209 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6210 | rightstop, truelab, falselab, extent); | |
6211 | } | |
6212 | ||
6213 | *stop = c; | |
6214 | if (input_line_pointer != stop) | |
6215 | as_bad (_("syntax error in structured control directive")); | |
6216 | } | |
6217 | ||
6218 | /* Handle the MRI IF pseudo-op. This may be a structured control | |
6219 | directive, or it may be a regular assembler conditional, depending | |
6220 | on its operands. */ | |
6221 | ||
6222 | static void | |
6223 | s_mri_if (qual) | |
6224 | int qual; | |
6225 | { | |
6226 | char *s; | |
6227 | int c; | |
6228 | struct mri_control_info *n; | |
6229 | ||
6230 | /* A structured control directive must end with THEN with an | |
6231 | optional qualifier. */ | |
6232 | s = input_line_pointer; | |
e1f44d10 NC |
6233 | /* We only accept '*' as introduction of comments if preceded by white space |
6234 | or at first column of a line (I think this can't actually happen here?) | |
6235 | This is important when assembling: | |
6236 | if d0 <ne> 12(a0,d0*2) then | |
36759679 | 6237 | if d0 <ne> #CONST*20 then. */ |
e1f44d10 NC |
6238 | while ( ! ( is_end_of_line[(unsigned char) *s] |
6239 | || ( flag_mri | |
6240 | && *s == '*' | |
6241 | && ( s == input_line_pointer | |
6242 | || *(s-1) == ' ' | |
6243 | || *(s-1) == '\t')))) | |
252b5132 RH |
6244 | ++s; |
6245 | --s; | |
6246 | while (s > input_line_pointer && (*s == ' ' || *s == '\t')) | |
6247 | --s; | |
6248 | ||
6249 | if (s - input_line_pointer > 1 | |
6250 | && s[-1] == '.') | |
6251 | s -= 2; | |
6252 | ||
6253 | if (s - input_line_pointer < 3 | |
6254 | || strncasecmp (s - 3, "THEN", 4) != 0) | |
6255 | { | |
6256 | if (qual != '\0') | |
6257 | { | |
6258 | as_bad (_("missing then")); | |
6259 | ignore_rest_of_line (); | |
6260 | return; | |
6261 | } | |
6262 | ||
6263 | /* It's a conditional. */ | |
6264 | s_if (O_ne); | |
6265 | return; | |
6266 | } | |
6267 | ||
6268 | /* Since this might be a conditional if, this pseudo-op will be | |
6269 | called even if we are supported to be ignoring input. Double | |
6270 | check now. Clobber *input_line_pointer so that ignore_input | |
6271 | thinks that this is not a special pseudo-op. */ | |
6272 | c = *input_line_pointer; | |
6273 | *input_line_pointer = 0; | |
6274 | if (ignore_input ()) | |
6275 | { | |
6276 | *input_line_pointer = c; | |
6277 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6278 | ++input_line_pointer; | |
6279 | demand_empty_rest_of_line (); | |
6280 | return; | |
6281 | } | |
6282 | *input_line_pointer = c; | |
6283 | ||
6284 | n = push_mri_control (mri_if); | |
6285 | ||
6286 | parse_mri_control_expression (s - 3, qual, (const char *) NULL, | |
6287 | n->next, s[1] == '.' ? s[2] : '\0'); | |
6288 | ||
6289 | if (s[1] == '.') | |
6290 | input_line_pointer = s + 3; | |
6291 | else | |
6292 | input_line_pointer = s + 1; | |
6293 | ||
6294 | if (flag_mri) | |
6295 | { | |
6296 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6297 | ++input_line_pointer; | |
6298 | } | |
6299 | ||
6300 | demand_empty_rest_of_line (); | |
6301 | } | |
6302 | ||
6303 | /* Handle the MRI else pseudo-op. If we are currently doing an MRI | |
6304 | structured IF, associate the ELSE with the IF. Otherwise, assume | |
6305 | it is a conditional else. */ | |
6306 | ||
6307 | static void | |
6308 | s_mri_else (qual) | |
6309 | int qual; | |
6310 | { | |
6311 | int c; | |
6312 | char *buf; | |
6313 | char q[2]; | |
6314 | ||
6315 | if (qual == '\0' | |
6316 | && (mri_control_stack == NULL | |
6317 | || mri_control_stack->type != mri_if | |
6318 | || mri_control_stack->else_seen)) | |
6319 | { | |
6320 | s_else (0); | |
6321 | return; | |
6322 | } | |
6323 | ||
6324 | c = *input_line_pointer; | |
6325 | *input_line_pointer = 0; | |
6326 | if (ignore_input ()) | |
6327 | { | |
6328 | *input_line_pointer = c; | |
6329 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6330 | ++input_line_pointer; | |
6331 | demand_empty_rest_of_line (); | |
6332 | return; | |
6333 | } | |
6334 | *input_line_pointer = c; | |
6335 | ||
6336 | if (mri_control_stack == NULL | |
6337 | || mri_control_stack->type != mri_if | |
6338 | || mri_control_stack->else_seen) | |
6339 | { | |
6340 | as_bad (_("else without matching if")); | |
6341 | ignore_rest_of_line (); | |
6342 | return; | |
6343 | } | |
6344 | ||
6345 | mri_control_stack->else_seen = 1; | |
6346 | ||
6347 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom)); | |
3882b010 | 6348 | q[0] = TOLOWER (qual); |
252b5132 RH |
6349 | q[1] = '\0'; |
6350 | sprintf (buf, "bra%s %s", q, mri_control_stack->bottom); | |
6351 | mri_assemble (buf); | |
6352 | free (buf); | |
6353 | ||
6354 | colon (mri_control_stack->next); | |
6355 | ||
6356 | if (flag_mri) | |
6357 | { | |
6358 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6359 | ++input_line_pointer; | |
6360 | } | |
6361 | ||
6362 | demand_empty_rest_of_line (); | |
6363 | } | |
6364 | ||
6365 | /* Handle the MRI ENDI pseudo-op. */ | |
6366 | ||
6367 | static void | |
6368 | s_mri_endi (ignore) | |
36823076 | 6369 | 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 | |
6400 | s_mri_break (extent) | |
6401 | int extent; | |
6402 | { | |
6403 | struct mri_control_info *n; | |
6404 | char *buf; | |
6405 | char ex[2]; | |
6406 | ||
6407 | n = mri_control_stack; | |
6408 | while (n != NULL | |
6409 | && n->type != mri_for | |
6410 | && n->type != mri_repeat | |
6411 | && n->type != mri_while) | |
6412 | n = n->outer; | |
6413 | if (n == NULL) | |
6414 | { | |
6415 | as_bad (_("break outside of structured loop")); | |
6416 | ignore_rest_of_line (); | |
6417 | return; | |
6418 | } | |
6419 | ||
6420 | buf = (char *) xmalloc (20 + strlen (n->bottom)); | |
3882b010 | 6421 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6422 | ex[1] = '\0'; |
6423 | sprintf (buf, "bra%s %s", ex, n->bottom); | |
6424 | mri_assemble (buf); | |
6425 | free (buf); | |
6426 | ||
6427 | if (flag_mri) | |
6428 | { | |
6429 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6430 | ++input_line_pointer; | |
6431 | } | |
6432 | ||
6433 | demand_empty_rest_of_line (); | |
6434 | } | |
6435 | ||
6436 | /* Handle the MRI NEXT pseudo-op. */ | |
6437 | ||
6438 | static void | |
6439 | s_mri_next (extent) | |
6440 | int extent; | |
6441 | { | |
6442 | struct mri_control_info *n; | |
6443 | char *buf; | |
6444 | char ex[2]; | |
6445 | ||
6446 | n = mri_control_stack; | |
6447 | while (n != NULL | |
6448 | && n->type != mri_for | |
6449 | && n->type != mri_repeat | |
6450 | && n->type != mri_while) | |
6451 | n = n->outer; | |
6452 | if (n == NULL) | |
6453 | { | |
6454 | as_bad (_("next outside of structured loop")); | |
6455 | ignore_rest_of_line (); | |
6456 | return; | |
6457 | } | |
6458 | ||
6459 | buf = (char *) xmalloc (20 + strlen (n->next)); | |
3882b010 | 6460 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6461 | ex[1] = '\0'; |
6462 | sprintf (buf, "bra%s %s", ex, n->next); | |
6463 | mri_assemble (buf); | |
6464 | free (buf); | |
6465 | ||
6466 | if (flag_mri) | |
6467 | { | |
6468 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6469 | ++input_line_pointer; | |
6470 | } | |
6471 | ||
6472 | demand_empty_rest_of_line (); | |
6473 | } | |
6474 | ||
6475 | /* Handle the MRI FOR pseudo-op. */ | |
6476 | ||
6477 | static void | |
6478 | s_mri_for (qual) | |
6479 | int qual; | |
6480 | { | |
6481 | const char *varstart, *varstop; | |
6482 | const char *initstart, *initstop; | |
6483 | const char *endstart, *endstop; | |
6484 | const char *bystart, *bystop; | |
6485 | int up; | |
6486 | int by; | |
6487 | int extent; | |
6488 | struct mri_control_info *n; | |
6489 | char *buf; | |
6490 | char *s; | |
6491 | char ex[2]; | |
6492 | ||
6493 | /* The syntax is | |
6494 | FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e | |
6495 | */ | |
6496 | ||
6497 | SKIP_WHITESPACE (); | |
6498 | varstart = input_line_pointer; | |
6499 | ||
6500 | /* Look for the '='. */ | |
6501 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
6502 | && *input_line_pointer != '=') | |
6503 | ++input_line_pointer; | |
6504 | if (*input_line_pointer != '=') | |
6505 | { | |
6506 | as_bad (_("missing =")); | |
6507 | ignore_rest_of_line (); | |
6508 | return; | |
6509 | } | |
6510 | ||
6511 | varstop = input_line_pointer; | |
6512 | if (varstop > varstart | |
6513 | && (varstop[-1] == ' ' || varstop[-1] == '\t')) | |
6514 | --varstop; | |
6515 | ||
6516 | ++input_line_pointer; | |
6517 | ||
6518 | initstart = input_line_pointer; | |
6519 | ||
6520 | /* Look for TO or DOWNTO. */ | |
6521 | up = 1; | |
6522 | initstop = NULL; | |
6523 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6524 | { | |
6525 | if (strncasecmp (input_line_pointer, "TO", 2) == 0 | |
6526 | && ! is_part_of_name (input_line_pointer[2])) | |
6527 | { | |
6528 | initstop = input_line_pointer; | |
6529 | input_line_pointer += 2; | |
6530 | break; | |
6531 | } | |
6532 | if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0 | |
6533 | && ! is_part_of_name (input_line_pointer[6])) | |
6534 | { | |
6535 | initstop = input_line_pointer; | |
6536 | up = 0; | |
6537 | input_line_pointer += 6; | |
6538 | break; | |
6539 | } | |
6540 | ++input_line_pointer; | |
6541 | } | |
6542 | if (initstop == NULL) | |
6543 | { | |
6544 | as_bad (_("missing to or downto")); | |
6545 | ignore_rest_of_line (); | |
6546 | return; | |
6547 | } | |
6548 | if (initstop > initstart | |
6549 | && (initstop[-1] == ' ' || initstop[-1] == '\t')) | |
6550 | --initstop; | |
6551 | ||
6552 | SKIP_WHITESPACE (); | |
6553 | endstart = input_line_pointer; | |
6554 | ||
6555 | /* Look for BY or DO. */ | |
6556 | by = 0; | |
6557 | endstop = NULL; | |
6558 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6559 | { | |
6560 | if (strncasecmp (input_line_pointer, "BY", 2) == 0 | |
6561 | && ! is_part_of_name (input_line_pointer[2])) | |
6562 | { | |
6563 | endstop = input_line_pointer; | |
6564 | by = 1; | |
6565 | input_line_pointer += 2; | |
6566 | break; | |
6567 | } | |
6568 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6569 | && (input_line_pointer[2] == '.' | |
6570 | || ! is_part_of_name (input_line_pointer[2]))) | |
6571 | { | |
6572 | endstop = input_line_pointer; | |
6573 | input_line_pointer += 2; | |
6574 | break; | |
6575 | } | |
6576 | ++input_line_pointer; | |
6577 | } | |
6578 | if (endstop == NULL) | |
6579 | { | |
6580 | as_bad (_("missing do")); | |
6581 | ignore_rest_of_line (); | |
6582 | return; | |
6583 | } | |
6584 | if (endstop > endstart | |
6585 | && (endstop[-1] == ' ' || endstop[-1] == '\t')) | |
6586 | --endstop; | |
6587 | ||
6588 | if (! by) | |
6589 | { | |
6590 | bystart = "#1"; | |
6591 | bystop = bystart + 2; | |
6592 | } | |
6593 | else | |
6594 | { | |
6595 | SKIP_WHITESPACE (); | |
6596 | bystart = input_line_pointer; | |
6597 | ||
6598 | /* Look for DO. */ | |
6599 | bystop = NULL; | |
6600 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6601 | { | |
6602 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6603 | && (input_line_pointer[2] == '.' | |
6604 | || ! is_part_of_name (input_line_pointer[2]))) | |
6605 | { | |
6606 | bystop = input_line_pointer; | |
6607 | input_line_pointer += 2; | |
6608 | break; | |
6609 | } | |
6610 | ++input_line_pointer; | |
6611 | } | |
6612 | if (bystop == NULL) | |
6613 | { | |
6614 | as_bad (_("missing do")); | |
6615 | ignore_rest_of_line (); | |
6616 | return; | |
6617 | } | |
6618 | if (bystop > bystart | |
6619 | && (bystop[-1] == ' ' || bystop[-1] == '\t')) | |
6620 | --bystop; | |
6621 | } | |
6622 | ||
6623 | if (*input_line_pointer != '.') | |
6624 | extent = '\0'; | |
6625 | else | |
6626 | { | |
6627 | extent = input_line_pointer[1]; | |
6628 | input_line_pointer += 2; | |
6629 | } | |
6630 | ||
6631 | /* We have fully parsed the FOR operands. Now build the loop. */ | |
252b5132 RH |
6632 | n = push_mri_control (mri_for); |
6633 | ||
6634 | buf = (char *) xmalloc (50 + (input_line_pointer - varstart)); | |
6635 | ||
36759679 | 6636 | /* Move init,var. */ |
252b5132 RH |
6637 | s = buf; |
6638 | *s++ = 'm'; | |
6639 | *s++ = 'o'; | |
6640 | *s++ = 'v'; | |
6641 | *s++ = 'e'; | |
6642 | if (qual != '\0') | |
3882b010 | 6643 | *s++ = TOLOWER (qual); |
252b5132 RH |
6644 | *s++ = ' '; |
6645 | memcpy (s, initstart, initstop - initstart); | |
6646 | s += initstop - initstart; | |
6647 | *s++ = ','; | |
6648 | memcpy (s, varstart, varstop - varstart); | |
6649 | s += varstop - varstart; | |
6650 | *s = '\0'; | |
6651 | mri_assemble (buf); | |
6652 | ||
6653 | colon (n->top); | |
6654 | ||
36759679 | 6655 | /* cmp end,var. */ |
252b5132 RH |
6656 | s = buf; |
6657 | *s++ = 'c'; | |
6658 | *s++ = 'm'; | |
6659 | *s++ = 'p'; | |
6660 | if (qual != '\0') | |
3882b010 | 6661 | *s++ = TOLOWER (qual); |
252b5132 RH |
6662 | *s++ = ' '; |
6663 | memcpy (s, endstart, endstop - endstart); | |
6664 | s += endstop - endstart; | |
6665 | *s++ = ','; | |
6666 | memcpy (s, varstart, varstop - varstart); | |
6667 | s += varstop - varstart; | |
6668 | *s = '\0'; | |
6669 | mri_assemble (buf); | |
6670 | ||
36759679 | 6671 | /* bcc bottom. */ |
3882b010 | 6672 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6673 | ex[1] = '\0'; |
6674 | if (up) | |
6675 | sprintf (buf, "blt%s %s", ex, n->bottom); | |
6676 | else | |
6677 | sprintf (buf, "bgt%s %s", ex, n->bottom); | |
6678 | mri_assemble (buf); | |
6679 | ||
6680 | /* Put together the add or sub instruction used by ENDF. */ | |
6681 | s = buf; | |
6682 | if (up) | |
6683 | strcpy (s, "add"); | |
6684 | else | |
6685 | strcpy (s, "sub"); | |
6686 | s += 3; | |
6687 | if (qual != '\0') | |
3882b010 | 6688 | *s++ = TOLOWER (qual); |
252b5132 RH |
6689 | *s++ = ' '; |
6690 | memcpy (s, bystart, bystop - bystart); | |
6691 | s += bystop - bystart; | |
6692 | *s++ = ','; | |
6693 | memcpy (s, varstart, varstop - varstart); | |
6694 | s += varstop - varstart; | |
6695 | *s = '\0'; | |
6696 | n->incr = buf; | |
6697 | ||
6698 | if (flag_mri) | |
6699 | { | |
6700 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6701 | ++input_line_pointer; | |
6702 | } | |
6703 | ||
6704 | demand_empty_rest_of_line (); | |
6705 | } | |
6706 | ||
6707 | /* Handle the MRI ENDF pseudo-op. */ | |
6708 | ||
6709 | static void | |
6710 | s_mri_endf (ignore) | |
36823076 | 6711 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6712 | { |
6713 | if (mri_control_stack == NULL | |
6714 | || mri_control_stack->type != mri_for) | |
6715 | { | |
6716 | as_bad (_("endf without for")); | |
6717 | ignore_rest_of_line (); | |
6718 | return; | |
6719 | } | |
6720 | ||
6721 | colon (mri_control_stack->next); | |
6722 | ||
6723 | mri_assemble (mri_control_stack->incr); | |
6724 | ||
6725 | sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top); | |
6726 | mri_assemble (mri_control_stack->incr); | |
6727 | ||
6728 | free (mri_control_stack->incr); | |
6729 | ||
6730 | colon (mri_control_stack->bottom); | |
6731 | ||
6732 | pop_mri_control (); | |
6733 | ||
6734 | if (flag_mri) | |
6735 | { | |
6736 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6737 | ++input_line_pointer; | |
6738 | } | |
6739 | ||
6740 | demand_empty_rest_of_line (); | |
6741 | } | |
6742 | ||
6743 | /* Handle the MRI REPEAT pseudo-op. */ | |
6744 | ||
6745 | static void | |
6746 | s_mri_repeat (ignore) | |
36823076 | 6747 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6748 | { |
6749 | struct mri_control_info *n; | |
6750 | ||
6751 | n = push_mri_control (mri_repeat); | |
6752 | colon (n->top); | |
6753 | if (flag_mri) | |
6754 | { | |
6755 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6756 | ++input_line_pointer; | |
6757 | } | |
6758 | demand_empty_rest_of_line (); | |
6759 | } | |
6760 | ||
6761 | /* Handle the MRI UNTIL pseudo-op. */ | |
6762 | ||
6763 | static void | |
6764 | s_mri_until (qual) | |
6765 | int qual; | |
6766 | { | |
6767 | char *s; | |
6768 | ||
6769 | if (mri_control_stack == NULL | |
6770 | || mri_control_stack->type != mri_repeat) | |
6771 | { | |
6772 | as_bad (_("until without repeat")); | |
6773 | ignore_rest_of_line (); | |
6774 | return; | |
6775 | } | |
6776 | ||
6777 | colon (mri_control_stack->next); | |
6778 | ||
6779 | for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++) | |
6780 | ; | |
6781 | ||
6782 | parse_mri_control_expression (s, qual, (const char *) NULL, | |
6783 | mri_control_stack->top, '\0'); | |
6784 | ||
6785 | colon (mri_control_stack->bottom); | |
6786 | ||
6787 | input_line_pointer = s; | |
6788 | ||
6789 | pop_mri_control (); | |
6790 | ||
6791 | if (flag_mri) | |
6792 | { | |
6793 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6794 | ++input_line_pointer; | |
6795 | } | |
6796 | ||
6797 | demand_empty_rest_of_line (); | |
6798 | } | |
6799 | ||
6800 | /* Handle the MRI WHILE pseudo-op. */ | |
6801 | ||
6802 | static void | |
6803 | s_mri_while (qual) | |
6804 | int qual; | |
6805 | { | |
6806 | char *s; | |
6807 | ||
6808 | struct mri_control_info *n; | |
6809 | ||
6810 | s = input_line_pointer; | |
e1f44d10 NC |
6811 | /* We only accept '*' as introduction of comments if preceded by white space |
6812 | or at first column of a line (I think this can't actually happen here?) | |
6813 | This is important when assembling: | |
6814 | while d0 <ne> 12(a0,d0*2) do | |
36759679 | 6815 | while d0 <ne> #CONST*20 do. */ |
8a104df9 KH |
6816 | while (! (is_end_of_line[(unsigned char) *s] |
6817 | || (flag_mri | |
6818 | && *s == '*' | |
6819 | && (s == input_line_pointer | |
6820 | || *(s-1) == ' ' | |
6821 | || *(s-1) == '\t')))) | |
252b5132 RH |
6822 | s++; |
6823 | --s; | |
6824 | while (*s == ' ' || *s == '\t') | |
6825 | --s; | |
6826 | if (s - input_line_pointer > 1 | |
6827 | && s[-1] == '.') | |
6828 | s -= 2; | |
6829 | if (s - input_line_pointer < 2 | |
6830 | || strncasecmp (s - 1, "DO", 2) != 0) | |
6831 | { | |
6832 | as_bad (_("missing do")); | |
6833 | ignore_rest_of_line (); | |
6834 | return; | |
6835 | } | |
6836 | ||
6837 | n = push_mri_control (mri_while); | |
6838 | ||
6839 | colon (n->next); | |
6840 | ||
6841 | parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom, | |
6842 | s[1] == '.' ? s[2] : '\0'); | |
6843 | ||
6844 | input_line_pointer = s + 1; | |
6845 | if (*input_line_pointer == '.') | |
6846 | input_line_pointer += 2; | |
6847 | ||
6848 | if (flag_mri) | |
6849 | { | |
6850 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6851 | ++input_line_pointer; | |
6852 | } | |
6853 | ||
6854 | demand_empty_rest_of_line (); | |
6855 | } | |
6856 | ||
6857 | /* Handle the MRI ENDW pseudo-op. */ | |
6858 | ||
6859 | static void | |
6860 | s_mri_endw (ignore) | |
36823076 | 6861 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6862 | { |
6863 | char *buf; | |
6864 | ||
6865 | if (mri_control_stack == NULL | |
6866 | || mri_control_stack->type != mri_while) | |
6867 | { | |
6868 | as_bad (_("endw without while")); | |
6869 | ignore_rest_of_line (); | |
6870 | return; | |
6871 | } | |
6872 | ||
6873 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->next)); | |
6874 | sprintf (buf, "bra %s", mri_control_stack->next); | |
6875 | mri_assemble (buf); | |
6876 | free (buf); | |
6877 | ||
6878 | colon (mri_control_stack->bottom); | |
6879 | ||
6880 | pop_mri_control (); | |
6881 | ||
6882 | if (flag_mri) | |
6883 | { | |
6884 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6885 | ++input_line_pointer; | |
6886 | } | |
6887 | ||
6888 | demand_empty_rest_of_line (); | |
6889 | } | |
6890 | \f | |
6891 | /* | |
6892 | * md_parse_option | |
6893 | * Invocation line includes a switch not recognized by the base assembler. | |
6894 | * See if it's a processor-specific option. These are: | |
6895 | * | |
6896 | * -[A]m[c]68000, -[A]m[c]68008, -[A]m[c]68010, -[A]m[c]68020, -[A]m[c]68030, -[A]m[c]68040 | |
6897 | * -[A]m[c]68881, -[A]m[c]68882, -[A]m[c]68851 | |
6898 | * Select the architecture. Instructions or features not | |
6899 | * supported by the selected architecture cause fatal | |
6900 | * errors. More than one may be specified. The default is | |
6901 | * -m68020 -m68851 -m68881. Note that -m68008 is a synonym | |
6902 | * for -m68000, and -m68882 is a synonym for -m68881. | |
6903 | * -[A]m[c]no-68851, -[A]m[c]no-68881 | |
6904 | * Don't accept 688?1 instructions. (The "c" is kind of silly, | |
6905 | * so don't use or document it, but that's the way the parsing | |
6906 | * works). | |
6907 | * | |
6908 | * -pic Indicates PIC. | |
6909 | * -k Indicates PIC. (Sun 3 only.) | |
28e7409f | 6910 | * --pcrel Never turn PC-relative branches into absolute jumps. |
252b5132 RH |
6911 | * |
6912 | * --bitwise-or | |
6913 | * Permit `|' to be used in expressions. | |
6914 | * | |
6915 | */ | |
6916 | ||
6917 | #ifdef OBJ_ELF | |
5a38dc70 | 6918 | const char *md_shortopts = "lSA:m:kQ:V"; |
252b5132 | 6919 | #else |
5a38dc70 | 6920 | const char *md_shortopts = "lSA:m:k"; |
252b5132 RH |
6921 | #endif |
6922 | ||
6923 | struct option md_longopts[] = { | |
6924 | #define OPTION_PIC (OPTION_MD_BASE) | |
6925 | {"pic", no_argument, NULL, OPTION_PIC}, | |
6926 | #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1) | |
6927 | {"register-prefix-optional", no_argument, NULL, | |
6928 | OPTION_REGISTER_PREFIX_OPTIONAL}, | |
6929 | #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2) | |
6930 | {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR}, | |
6931 | #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3) | |
6932 | {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16}, | |
6933 | #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4) | |
6934 | {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32}, | |
6935 | #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5) | |
6936 | {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16}, | |
6937 | #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6) | |
6938 | {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32}, | |
28e7409f NC |
6939 | #define OPTION_PCREL (OPTION_MD_BASE + 7) |
6940 | {"pcrel", no_argument, NULL, OPTION_PCREL}, | |
252b5132 RH |
6941 | {NULL, no_argument, NULL, 0} |
6942 | }; | |
bc805888 | 6943 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
6944 | |
6945 | int | |
6946 | md_parse_option (c, arg) | |
6947 | int c; | |
6948 | char *arg; | |
6949 | { | |
6950 | switch (c) | |
6951 | { | |
6952 | case 'l': /* -l means keep external to 2 bit offset | |
36759679 | 6953 | rather than 16 bit one. */ |
252b5132 RH |
6954 | flag_short_refs = 1; |
6955 | break; | |
6956 | ||
6957 | case 'S': /* -S means that jbsr's always turn into | |
6958 | jsr's. */ | |
6959 | flag_long_jumps = 1; | |
6960 | break; | |
6961 | ||
28e7409f NC |
6962 | case OPTION_PCREL: /* --pcrel means never turn PC-relative |
6963 | branches into absolute jumps. */ | |
6964 | flag_keep_pcrel = 1; | |
6965 | break; | |
6966 | ||
252b5132 RH |
6967 | case 'A': |
6968 | if (*arg == 'm') | |
8a104df9 | 6969 | arg++; |
36759679 | 6970 | /* Intentional fall-through. */ |
252b5132 RH |
6971 | case 'm': |
6972 | ||
6973 | if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-') | |
6974 | { | |
6975 | int i; | |
6976 | unsigned long arch; | |
6977 | const char *oarg = arg; | |
6978 | ||
6979 | arg += 3; | |
6980 | if (*arg == 'm') | |
6981 | { | |
6982 | arg++; | |
6983 | if (arg[0] == 'c' && arg[1] == '6') | |
6984 | arg++; | |
6985 | } | |
6986 | for (i = 0; i < n_archs; i++) | |
6987 | if (!strcmp (arg, archs[i].name)) | |
6988 | break; | |
6989 | if (i == n_archs) | |
6990 | { | |
6991 | unknown: | |
6992 | as_bad (_("unrecognized option `%s'"), oarg); | |
6993 | return 0; | |
6994 | } | |
6995 | arch = archs[i].arch; | |
6996 | if (arch == m68881) | |
6997 | no_68881 = 1; | |
6998 | else if (arch == m68851) | |
6999 | no_68851 = 1; | |
7000 | else | |
7001 | goto unknown; | |
7002 | } | |
7003 | else | |
7004 | { | |
7005 | int i; | |
7006 | ||
7007 | if (arg[0] == 'c' && arg[1] == '6') | |
7008 | arg++; | |
7009 | ||
7010 | for (i = 0; i < n_archs; i++) | |
7011 | if (!strcmp (arg, archs[i].name)) | |
7012 | { | |
7013 | unsigned long arch = archs[i].arch; | |
7014 | if (cpu_of_arch (arch)) | |
7015 | /* It's a cpu spec. */ | |
7016 | { | |
7017 | current_architecture &= ~m68000up; | |
7018 | current_architecture |= arch; | |
7019 | } | |
7020 | else if (arch == m68881) | |
7021 | { | |
7022 | current_architecture |= m68881; | |
7023 | no_68881 = 0; | |
7024 | } | |
7025 | else if (arch == m68851) | |
7026 | { | |
7027 | current_architecture |= m68851; | |
7028 | no_68851 = 0; | |
7029 | } | |
7030 | else | |
7031 | /* ??? */ | |
7032 | abort (); | |
7033 | break; | |
7034 | } | |
7035 | if (i == n_archs) | |
7036 | { | |
7037 | as_bad (_("unrecognized architecture specification `%s'"), arg); | |
7038 | return 0; | |
7039 | } | |
7040 | } | |
7041 | break; | |
7042 | ||
7043 | case OPTION_PIC: | |
7044 | case 'k': | |
7045 | flag_want_pic = 1; | |
36759679 | 7046 | break; /* -pic, Position Independent Code. */ |
252b5132 RH |
7047 | |
7048 | case OPTION_REGISTER_PREFIX_OPTIONAL: | |
7049 | flag_reg_prefix_optional = 1; | |
7050 | reg_prefix_optional_seen = 1; | |
7051 | break; | |
7052 | ||
7053 | /* -V: SVR4 argument to print version ID. */ | |
7054 | case 'V': | |
7055 | print_version_id (); | |
7056 | break; | |
7057 | ||
7058 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
7059 | should be emitted or not. FIXME: Not implemented. */ | |
7060 | case 'Q': | |
7061 | break; | |
7062 | ||
7063 | case OPTION_BITWISE_OR: | |
7064 | { | |
7065 | char *n, *t; | |
7066 | const char *s; | |
7067 | ||
7068 | n = (char *) xmalloc (strlen (m68k_comment_chars) + 1); | |
7069 | t = n; | |
7070 | for (s = m68k_comment_chars; *s != '\0'; s++) | |
7071 | if (*s != '|') | |
7072 | *t++ = *s; | |
7073 | *t = '\0'; | |
7074 | m68k_comment_chars = n; | |
7075 | } | |
7076 | break; | |
7077 | ||
7078 | case OPTION_BASE_SIZE_DEFAULT_16: | |
7079 | m68k_index_width_default = SIZE_WORD; | |
7080 | break; | |
7081 | ||
7082 | case OPTION_BASE_SIZE_DEFAULT_32: | |
7083 | m68k_index_width_default = SIZE_LONG; | |
7084 | break; | |
7085 | ||
7086 | case OPTION_DISP_SIZE_DEFAULT_16: | |
7087 | m68k_rel32 = 0; | |
7088 | m68k_rel32_from_cmdline = 1; | |
7089 | break; | |
7090 | ||
7091 | case OPTION_DISP_SIZE_DEFAULT_32: | |
7092 | m68k_rel32 = 1; | |
7093 | m68k_rel32_from_cmdline = 1; | |
7094 | break; | |
7095 | ||
7096 | default: | |
7097 | return 0; | |
7098 | } | |
7099 | ||
7100 | return 1; | |
7101 | } | |
7102 | ||
7103 | void | |
7104 | md_show_usage (stream) | |
7105 | FILE *stream; | |
7106 | { | |
76f57f3a | 7107 | const char *default_cpu = TARGET_CPU; |
f1f5ef86 AM |
7108 | int i; |
7109 | unsigned int default_arch; | |
76f57f3a | 7110 | |
8a104df9 | 7111 | /* Get the canonical name for the default target CPU. */ |
76f57f3a JT |
7112 | if (*default_cpu == 'm') |
7113 | default_cpu++; | |
7114 | for (i = 0; i < n_archs; i++) | |
7115 | { | |
7116 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
7117 | { | |
7118 | default_arch = archs[i].arch; | |
7119 | for (i = 0; i < n_archs; i++) | |
7120 | { | |
7121 | if (archs[i].arch == default_arch | |
7122 | && !archs[i].alias) | |
7123 | { | |
7124 | default_cpu = archs[i].name; | |
7125 | break; | |
7126 | } | |
7127 | } | |
7128 | } | |
7129 | } | |
7130 | ||
bc805888 | 7131 | fprintf (stream, _("\ |
252b5132 RH |
7132 | 680X0 options:\n\ |
7133 | -l use 1 word for refs to undefined symbols [default 2]\n\ | |
98b32482 NC |
7134 | -m68000 | -m68008 | -m68010 | -m68020 | -m68030 | -m68040 | -m68060 |\n\ |
7135 | -m68302 | -m68331 | -m68332 | -m68333 | -m68340 | -m68360 | -mcpu32 |\n\ | |
3e602632 NC |
7136 | -m5200 | -m5202 | -m5204 | -m5206 | -m5206e | -m528x | -m5307 |\n\ |
7137 | -m5407 | -mcfv4 | -mcfv4e\n\ | |
76f57f3a | 7138 | specify variant of 680X0 architecture [default %s]\n\ |
252b5132 RH |
7139 | -m68881 | -m68882 | -mno-68881 | -mno-68882\n\ |
7140 | target has/lacks floating-point coprocessor\n\ | |
76f57f3a JT |
7141 | [default yes for 68020, 68030, and cpu32]\n"), |
7142 | default_cpu); | |
bc805888 | 7143 | fprintf (stream, _("\ |
252b5132 RH |
7144 | -m68851 | -mno-68851\n\ |
7145 | target has/lacks memory-management unit coprocessor\n\ | |
7146 | [default yes for 68020 and up]\n\ | |
7147 | -pic, -k generate position independent code\n\ | |
7148 | -S turn jbsr into jsr\n\ | |
28e7409f | 7149 | --pcrel never turn PC-relative branches into absolute jumps\n\ |
252b5132 RH |
7150 | --register-prefix-optional\n\ |
7151 | recognize register names without prefix character\n\ | |
7152 | --bitwise-or do not treat `|' as a comment character\n")); | |
7153 | fprintf (stream, _("\ | |
7154 | --base-size-default-16 base reg without size is 16 bits\n\ | |
7155 | --base-size-default-32 base reg without size is 32 bits (default)\n\ | |
7156 | --disp-size-default-16 displacement with unknown size is 16 bits\n\ | |
7157 | --disp-size-default-32 displacement with unknown size is 32 bits (default)\n")); | |
7158 | } | |
7159 | \f | |
7160 | #ifdef TEST2 | |
7161 | ||
7162 | /* TEST2: Test md_assemble() */ | |
36759679 NC |
7163 | /* Warning, this routine probably doesn't work anymore. */ |
7164 | int | |
252b5132 RH |
7165 | main () |
7166 | { | |
7167 | struct m68k_it the_ins; | |
7168 | char buf[120]; | |
7169 | char *cp; | |
7170 | int n; | |
7171 | ||
7172 | m68k_ip_begin (); | |
7173 | for (;;) | |
7174 | { | |
7175 | if (!gets (buf) || !*buf) | |
7176 | break; | |
7177 | if (buf[0] == '|' || buf[1] == '.') | |
7178 | continue; | |
7179 | for (cp = buf; *cp; cp++) | |
7180 | if (*cp == '\t') | |
7181 | *cp = ' '; | |
7182 | if (is_label (buf)) | |
7183 | continue; | |
7184 | memset (&the_ins, '\0', sizeof (the_ins)); | |
7185 | m68k_ip (&the_ins, buf); | |
7186 | if (the_ins.error) | |
7187 | { | |
7188 | printf (_("Error %s in %s\n"), the_ins.error, buf); | |
7189 | } | |
7190 | else | |
7191 | { | |
7192 | printf (_("Opcode(%d.%s): "), the_ins.numo, the_ins.args); | |
7193 | for (n = 0; n < the_ins.numo; n++) | |
7194 | printf (" 0x%x", the_ins.opcode[n] & 0xffff); | |
7195 | printf (" "); | |
7196 | print_the_insn (&the_ins.opcode[0], stdout); | |
7197 | (void) putchar ('\n'); | |
7198 | } | |
7199 | for (n = 0; n < strlen (the_ins.args) / 2; n++) | |
7200 | { | |
7201 | if (the_ins.operands[n].error) | |
7202 | { | |
7203 | printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf); | |
7204 | continue; | |
7205 | } | |
7206 | printf ("mode %d, reg %d, ", the_ins.operands[n].mode, the_ins.operands[n].reg); | |
7207 | if (the_ins.operands[n].b_const) | |
7208 | printf ("Constant: '%.*s', ", 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const, the_ins.operands[n].b_const); | |
7209 | printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg, the_ins.operands[n].isiz, the_ins.operands[n].imul); | |
7210 | if (the_ins.operands[n].b_iadd) | |
7211 | printf ("Iadd: '%.*s',", 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd, the_ins.operands[n].b_iadd); | |
7212 | (void) putchar ('\n'); | |
7213 | } | |
7214 | } | |
7215 | m68k_ip_end (); | |
7216 | return 0; | |
7217 | } | |
7218 | ||
7219 | is_label (str) | |
7220 | char *str; | |
7221 | { | |
7222 | while (*str == ' ') | |
7223 | str++; | |
7224 | while (*str && *str != ' ') | |
7225 | str++; | |
7226 | if (str[-1] == ':' || str[1] == '=') | |
7227 | return 1; | |
7228 | return 0; | |
7229 | } | |
7230 | ||
7231 | #endif | |
7232 | ||
7233 | /* Possible states for relaxation: | |
7234 | ||
7235 | 0 0 branch offset byte (bra, etc) | |
7236 | 0 1 word | |
7237 | 0 2 long | |
7238 | ||
7239 | 1 0 indexed offsets byte a0@(32,d4:w:1) etc | |
7240 | 1 1 word | |
7241 | 1 2 long | |
7242 | ||
7243 | 2 0 two-offset index word-word a0@(32,d4)@(45) etc | |
7244 | 2 1 word-long | |
7245 | 2 2 long-word | |
7246 | 2 3 long-long | |
7247 | ||
7248 | */ | |
7249 | ||
7250 | /* We have no need to default values of symbols. */ | |
7251 | ||
252b5132 RH |
7252 | symbolS * |
7253 | md_undefined_symbol (name) | |
36823076 | 7254 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
7255 | { |
7256 | return 0; | |
7257 | } | |
7258 | ||
7259 | /* Round up a section size to the appropriate boundary. */ | |
7260 | valueT | |
7261 | md_section_align (segment, size) | |
36823076 | 7262 | segT segment ATTRIBUTE_UNUSED; |
252b5132 RH |
7263 | valueT size; |
7264 | { | |
7265 | #ifdef OBJ_AOUT | |
7266 | #ifdef BFD_ASSEMBLER | |
7267 | /* For a.out, force the section size to be aligned. If we don't do | |
7268 | this, BFD will align it for us, but it will not write out the | |
7269 | final bytes of the section. This may be a bug in BFD, but it is | |
7270 | easier to fix it here since that is how the other a.out targets | |
7271 | work. */ | |
7272 | int align; | |
7273 | ||
7274 | align = bfd_get_section_alignment (stdoutput, segment); | |
7275 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
7276 | #endif | |
7277 | #endif | |
7278 | ||
7279 | return size; | |
7280 | } | |
7281 | ||
7282 | /* Exactly what point is a PC-relative offset relative TO? | |
7283 | On the 68k, it is relative to the address of the first extension | |
7284 | word. The difference between the addresses of the offset and the | |
92774660 | 7285 | first extension word is stored in fx_pcrel_adjust. */ |
252b5132 RH |
7286 | long |
7287 | md_pcrel_from (fixP) | |
7288 | fixS *fixP; | |
7289 | { | |
7290 | int adjust; | |
7291 | ||
8390138c AS |
7292 | /* Because fx_pcrel_adjust is a char, and may be unsigned, we explicitly |
7293 | sign extend the value here. */ | |
7294 | adjust = ((fixP->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80; | |
252b5132 RH |
7295 | if (adjust == 64) |
7296 | adjust = -1; | |
7297 | return fixP->fx_where + fixP->fx_frag->fr_address - adjust; | |
7298 | } | |
7299 | ||
7300 | #ifndef BFD_ASSEMBLER | |
7301 | #ifdef OBJ_COFF | |
7302 | ||
252b5132 RH |
7303 | void |
7304 | tc_coff_symbol_emit_hook (ignore) | |
8fce3f5e | 7305 | symbolS *ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
7306 | { |
7307 | } | |
7308 | ||
7309 | int | |
7310 | tc_coff_sizemachdep (frag) | |
7311 | fragS *frag; | |
7312 | { | |
7313 | switch (frag->fr_subtype & 0x3) | |
7314 | { | |
7315 | case BYTE: | |
7316 | return 1; | |
7317 | case SHORT: | |
7318 | return 2; | |
7319 | case LONG: | |
7320 | return 4; | |
7321 | default: | |
7322 | abort (); | |
7323 | return 0; | |
7324 | } | |
7325 | } | |
7326 | ||
7327 | #endif | |
7328 | #endif | |
0d96863f | 7329 | #ifdef OBJ_ELF |
8a104df9 KH |
7330 | void |
7331 | m68k_elf_final_processing () | |
0d96863f | 7332 | { |
36759679 | 7333 | /* Set file-specific flags if this is a cpu32 processor. */ |
8a104df9 KH |
7334 | if (cpu_of_arch (current_architecture) & cpu32) |
7335 | elf_elfheader (stdoutput)->e_flags |= EF_CPU32; | |
7336 | else if ((cpu_of_arch (current_architecture) & m68000up) | |
7337 | && !(cpu_of_arch (current_architecture) & m68020up)) | |
7338 | elf_elfheader (stdoutput)->e_flags |= EF_M68000; | |
0d96863f CM |
7339 | } |
7340 | #endif | |
c04898f8 AS |
7341 | |
7342 | int | |
7343 | tc_m68k_regname_to_dw2regnum (const char *regname) | |
7344 | { | |
7345 | unsigned int regnum; | |
7346 | static const char *const regnames[] = | |
7347 | { | |
7348 | "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", | |
7349 | "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", | |
7350 | "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", | |
7351 | "pc" | |
7352 | }; | |
7353 | ||
7354 | for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++) | |
7355 | if (strcmp (regname, regnames[regnum]) == 0) | |
7356 | return regnum; | |
7357 | ||
7358 | return -1; | |
7359 | } | |
7360 | ||
7361 | void | |
7362 | tc_m68k_frame_initial_instructions (void) | |
7363 | { | |
7364 | static int sp_regno = -1; | |
7365 | ||
7366 | if (sp_regno < 0) | |
7367 | sp_regno = tc_m68k_regname_to_dw2regnum ("sp"); | |
7368 | ||
7369 | cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT); | |
7370 | cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT); | |
7371 | } |