Commit | Line | Data |
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a1c7c0f3 | 1 | /* tc-m68k.c -- Assemble for the m68k family |
b4d51f3d ILT |
2 | Copyright (C) 1987, 91, 92, 93, 94, 95, 96, 1997 |
3 | Free Software Foundation, Inc. | |
6d27d3a2 | 4 | |
a39116f1 | 5 | This file is part of GAS, the GNU Assembler. |
6d27d3a2 | 6 | |
a39116f1 RP |
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. | |
6d27d3a2 | 11 | |
a39116f1 RP |
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. | |
6d27d3a2 | 16 | |
a39116f1 | 17 | You should have received a copy of the GNU General Public License |
a1c7c0f3 ILT |
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. */ | |
fecd2382 RP |
21 | |
22 | #include <ctype.h> | |
fecd2382 | 23 | #include "as.h" |
fecd2382 | 24 | #include "obstack.h" |
b4ec75e0 | 25 | #include "subsegs.h" |
fecd2382 | 26 | |
e0982afe | 27 | #include "opcode/m68k.h" |
a1c7c0f3 | 28 | #include "m68k-parse.h" |
3ad9ec6a | 29 | |
8d20a0a8 C |
30 | /* This string holds the chars that always start a comment. If the |
31 | pre-processor is disabled, these aren't very useful. The macro | |
32 | tc_comment_chars points to this. We use this, rather than the | |
33 | usual comment_chars, so that the --bitwise-or option will work. */ | |
65feb78d | 34 | #if (defined (OBJ_ELF) && ! defined (TE_PSOS) && ! defined (TE_LINUX)) || defined (TE_DELTA) |
8d20a0a8 | 35 | const char *m68k_comment_chars = "|#"; |
5f8cb05e | 36 | #else |
8d20a0a8 | 37 | const char *m68k_comment_chars = "|"; |
5f8cb05e | 38 | #endif |
fecd2382 RP |
39 | |
40 | /* This array holds the chars that only start a comment at the beginning of | |
41 | a line. If the line seems to have the form '# 123 filename' | |
42 | .line and .file directives will appear in the pre-processed output */ | |
43 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
44 | first line of the input file. This is because the compiler outputs | |
45 | #NO_APP at the beginning of its output. */ | |
46 | /* Also note that comments like this one will always work. */ | |
326b087c | 47 | const char line_comment_chars[] = "#"; |
fecd2382 | 48 | |
326b087c | 49 | const char line_separator_chars[] = ""; |
587c4264 | 50 | |
fecd2382 | 51 | /* Chars that can be used to separate mant from exp in floating point nums */ |
49864cfa | 52 | CONST char EXP_CHARS[] = "eE"; |
fecd2382 | 53 | |
49864cfa KR |
54 | /* Chars that mean this number is a floating point constant, as |
55 | in "0f12.456" or "0d1.2345e12". */ | |
fecd2382 | 56 | |
49864cfa | 57 | CONST char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
fecd2382 RP |
58 | |
59 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
60 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
49864cfa | 61 | but nothing is ideal around here. */ |
fecd2382 | 62 | |
49864cfa | 63 | const int md_reloc_size = 8; /* Size of relocation record */ |
fecd2382 | 64 | |
b80d39a0 | 65 | /* Are we trying to generate PIC code? If so, absolute references |
dff60b7d | 66 | ought to be made into linkage table references or pc-relative |
a043f579 ILT |
67 | references. Not implemented. For ELF there are other means |
68 | to denote pic relocations. */ | |
b80d39a0 KR |
69 | int flag_want_pic; |
70 | ||
9ad5755f KR |
71 | static int flag_short_refs; /* -l option */ |
72 | static int flag_long_jumps; /* -S option */ | |
73 | ||
82489ea0 KR |
74 | #ifdef REGISTER_PREFIX_OPTIONAL |
75 | int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
76 | #else | |
77 | int flag_reg_prefix_optional; | |
78 | #endif | |
79 | ||
20710f1c ILT |
80 | /* Whether --register-prefix-optional was used on the command line. */ |
81 | static int reg_prefix_optional_seen; | |
82 | ||
27a53b88 ILT |
83 | /* The floating point coprocessor to use by default. */ |
84 | static enum m68k_register m68k_float_copnum = COP1; | |
85 | ||
6700d36e ILT |
86 | /* If this is non-zero, then references to number(%pc) will be taken |
87 | to refer to number, rather than to %pc + number. */ | |
88 | static int m68k_abspcadd; | |
89 | ||
90 | /* If this is non-zero, then the quick forms of the move, add, and sub | |
91 | instructions are used when possible. */ | |
92 | static int m68k_quick = 1; | |
93 | ||
94 | /* If this is non-zero, then if the size is not specified for a base | |
95 | or outer displacement, the assembler assumes that the size should | |
96 | be 32 bits. */ | |
97 | static int m68k_rel32 = 1; | |
98 | ||
924160b0 ILT |
99 | /* This is non-zero if m68k_rel32 was set from the command line. */ |
100 | static int m68k_rel32_from_cmdline; | |
101 | ||
b4d51f3d ILT |
102 | /* The default width to use for an index register when using a base |
103 | displacement. */ | |
104 | static enum m68k_size m68k_index_width_default = SIZE_LONG; | |
105 | ||
d703b5a7 ILT |
106 | /* We want to warn if any text labels are misaligned. In order to get |
107 | the right line number, we need to record the line number for each | |
108 | label. */ | |
109 | ||
110 | struct label_line | |
111 | { | |
112 | struct label_line *next; | |
113 | symbolS *label; | |
114 | char *file; | |
115 | unsigned int line; | |
116 | int text; | |
117 | }; | |
118 | ||
119 | /* The list of labels. */ | |
120 | ||
121 | static struct label_line *labels; | |
122 | ||
123 | /* The current label. */ | |
124 | ||
125 | static struct label_line *current_label; | |
126 | ||
fecd2382 RP |
127 | /* Its an arbitrary name: This means I don't approve of it */ |
128 | /* See flames below */ | |
129 | static struct obstack robyn; | |
130 | ||
131 | #define TAB(x,y) (((x)<<2)+(y)) | |
132 | #define TABTYPE(xy) ((xy) >> 2) | |
133 | #define BYTE 0 | |
134 | #define SHORT 1 | |
135 | #define LONG 2 | |
136 | #define SZ_UNDEF 3 | |
3ad9ec6a | 137 | #undef BRANCH |
04ef74bb | 138 | /* Case `g' except when BCC68000 is applicable. */ |
3ad9ec6a | 139 | #define ABRANCH 1 |
04ef74bb | 140 | /* Coprocessor branches. */ |
fecd2382 | 141 | #define FBRANCH 2 |
04ef74bb KR |
142 | /* Mode 7.2 -- program counter indirect with (16-bit) displacement, |
143 | supported on all cpus. Widens to 32-bit absolute. */ | |
fecd2382 | 144 | #define PCREL 3 |
04ef74bb KR |
145 | /* For inserting an extra jmp instruction with long offset on 68000, |
146 | for expanding conditional branches. (Not bsr or bra.) Since the | |
147 | 68000 doesn't support 32-bit displacements for conditional | |
148 | branches, we fake it by reversing the condition and branching | |
149 | around a jmp with an absolute long operand. */ | |
fecd2382 | 150 | #define BCC68000 4 |
04ef74bb KR |
151 | /* For the DBcc "instructions". If the displacement requires 32 bits, |
152 | the branch-around-a-jump game is played here too. */ | |
fecd2382 | 153 | #define DBCC 5 |
04ef74bb | 154 | /* Not currently used? */ |
fecd2382 | 155 | #define PCLEA 6 |
04ef74bb KR |
156 | /* Mode AINDX (apc-relative) using PC, with variable target, might fit |
157 | in 16 or 8 bits. */ | |
158 | #define PCINDEX 7 | |
fecd2382 | 159 | |
bcb8dff8 KR |
160 | struct m68k_incant |
161 | { | |
a1c7c0f3 | 162 | const char *m_operands; |
bcb8dff8 KR |
163 | unsigned long m_opcode; |
164 | short m_opnum; | |
165 | short m_codenum; | |
166 | int m_arch; | |
167 | struct m68k_incant *m_next; | |
168 | }; | |
169 | ||
170 | #define getone(x) ((((x)->m_opcode)>>16)&0xffff) | |
171 | #define gettwo(x) (((x)->m_opcode)&0xffff) | |
172 | ||
a1c7c0f3 ILT |
173 | static const enum m68k_register m68000_control_regs[] = { 0 }; |
174 | static const enum m68k_register m68010_control_regs[] = { | |
82489ea0 KR |
175 | SFC, DFC, USP, VBR, |
176 | 0 | |
177 | }; | |
a1c7c0f3 | 178 | static const enum m68k_register m68020_control_regs[] = { |
82489ea0 KR |
179 | SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP, |
180 | 0 | |
181 | }; | |
a1c7c0f3 | 182 | static const enum m68k_register m68040_control_regs[] = { |
82489ea0 KR |
183 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, |
184 | USP, VBR, MSP, ISP, MMUSR, URP, SRP, | |
185 | 0 | |
186 | }; | |
a1c7c0f3 | 187 | static const enum m68k_register m68060_control_regs[] = { |
82489ea0 KR |
188 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, |
189 | USP, VBR, URP, SRP, PCR, | |
190 | 0 | |
191 | }; | |
8d20a0a8 C |
192 | static const enum m68k_register mcf5200_control_regs[] = { |
193 | CACR, TC, ITT0, ITT1, DTT0, DTT1, VBR, ROMBAR, | |
194 | RAMBAR0, RAMBAR1, MBAR, | |
195 | 0 | |
196 | }; | |
b79de3a1 | 197 | #define cpu32_control_regs m68010_control_regs |
82489ea0 | 198 | |
a1c7c0f3 | 199 | static const enum m68k_register *control_regs; |
fecd2382 RP |
200 | |
201 | /* internal form of a 68020 instruction */ | |
355afbcd | 202 | struct m68k_it |
a1c7c0f3 ILT |
203 | { |
204 | const char *error; | |
205 | const char *args; /* list of opcode info */ | |
206 | int numargs; | |
355afbcd | 207 | |
a1c7c0f3 ILT |
208 | int numo; /* Number of shorts in opcode */ |
209 | short opcode[11]; | |
355afbcd | 210 | |
a1c7c0f3 | 211 | struct m68k_op operands[6]; |
355afbcd | 212 | |
a1c7c0f3 ILT |
213 | int nexp; /* number of exprs in use */ |
214 | struct m68k_exp exprs[4]; | |
355afbcd | 215 | |
a1c7c0f3 ILT |
216 | int nfrag; /* Number of frags we have to produce */ |
217 | struct | |
218 | { | |
219 | int fragoff; /* Where in the current opcode the frag ends */ | |
220 | symbolS *fadd; | |
221 | long foff; | |
222 | int fragty; | |
223 | } | |
224 | fragb[4]; | |
355afbcd | 225 | |
a1c7c0f3 ILT |
226 | int nrel; /* Num of reloc strucs in use */ |
227 | struct | |
228 | { | |
229 | int n; | |
230 | expressionS exp; | |
231 | char wid; | |
232 | char pcrel; | |
233 | /* In a pc relative address the difference between the address | |
234 | of the offset and the address that the offset is relative | |
235 | to. This depends on the addressing mode. Basically this | |
236 | is the value to put in the offset field to address the | |
237 | first byte of the offset, without regarding the special | |
238 | significance of some values (in the branch instruction, for | |
239 | example). */ | |
240 | int pcrel_fix; | |
a043f579 ILT |
241 | #ifdef OBJ_ELF |
242 | /* Whether this expression needs special pic relocation, and if | |
243 | so, which. */ | |
244 | enum pic_relocation pic_reloc; | |
245 | #endif | |
a1c7c0f3 ILT |
246 | } |
247 | reloc[5]; /* Five is enough??? */ | |
248 | }; | |
fecd2382 | 249 | |
8d20a0a8 | 250 | #define cpu_of_arch(x) ((x) & (m68000up|mcf5200)) |
865a2edf MT |
251 | #define float_of_arch(x) ((x) & mfloat) |
252 | #define mmu_of_arch(x) ((x) & mmmu) | |
253 | ||
ffecfc8b C |
254 | /* Macros for determining if cpu supports a specific addressing mode */ |
255 | #define HAVE_LONG_BRANCH(x) ((x) & (m68020|m68030|m68040|m68060|cpu32)) | |
256 | ||
355afbcd | 257 | static struct m68k_it the_ins; /* the instruction being assembled */ |
fecd2382 | 258 | |
a1c7c0f3 ILT |
259 | #define op(ex) ((ex)->exp.X_op) |
260 | #define adds(ex) ((ex)->exp.X_add_symbol) | |
261 | #define subs(ex) ((ex)->exp.X_op_symbol) | |
262 | #define offs(ex) ((ex)->exp.X_add_number) | |
49864cfa | 263 | |
7c15cbe8 | 264 | /* Macros for adding things to the m68k_it struct */ |
fecd2382 RP |
265 | |
266 | #define addword(w) the_ins.opcode[the_ins.numo++]=(w) | |
267 | ||
268 | /* Like addword, but goes BEFORE general operands */ | |
bcb8dff8 KR |
269 | static void |
270 | insop (w, opcode) | |
271 | int w; | |
272 | struct m68k_incant *opcode; | |
273 | { | |
274 | int z; | |
275 | for(z=the_ins.numo;z>opcode->m_codenum;--z) | |
276 | the_ins.opcode[z]=the_ins.opcode[z-1]; | |
277 | for(z=0;z<the_ins.nrel;z++) | |
278 | the_ins.reloc[z].n+=2; | |
5f8cb05e ILT |
279 | for (z = 0; z < the_ins.nfrag; z++) |
280 | the_ins.fragb[z].fragoff++; | |
bcb8dff8 KR |
281 | the_ins.opcode[opcode->m_codenum]=w; |
282 | the_ins.numo++; | |
283 | } | |
fecd2382 | 284 | |
1404ef23 KR |
285 | /* The numo+1 kludge is so we can hit the low order byte of the prev word. |
286 | Blecch. */ | |
49864cfa | 287 | static void |
5f8cb05e | 288 | add_fix (width, exp, pc_rel, pc_fix) |
49864cfa KR |
289 | char width; |
290 | struct m68k_exp *exp; | |
291 | int pc_rel; | |
5f8cb05e | 292 | int pc_fix; |
49864cfa | 293 | { |
0b810a6e | 294 | the_ins.reloc[the_ins.nrel].n = ((width == 'B' || width == '3') |
49864cfa KR |
295 | ? (the_ins.numo*2-1) |
296 | : (((width)=='b') | |
5f8cb05e | 297 | ? (the_ins.numo*2+1) |
49864cfa | 298 | : (the_ins.numo*2))); |
a1c7c0f3 | 299 | the_ins.reloc[the_ins.nrel].exp = exp->exp; |
49864cfa | 300 | the_ins.reloc[the_ins.nrel].wid = width; |
5f8cb05e | 301 | the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix; |
a043f579 ILT |
302 | #ifdef OBJ_ELF |
303 | the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc; | |
304 | #endif | |
49864cfa | 305 | the_ins.reloc[the_ins.nrel++].pcrel = pc_rel; |
1404ef23 KR |
306 | } |
307 | ||
5f8cb05e ILT |
308 | /* Cause an extra frag to be generated here, inserting up to 10 bytes |
309 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
310 | is the subtype of the frag to be generated; its primary type is | |
311 | rs_machine_dependent. | |
312 | ||
313 | The TYPE parameter is also used by md_convert_frag_1 and | |
314 | md_estimate_size_before_relax. The appropriate type of fixup will | |
315 | be emitted by md_convert_frag_1. | |
316 | ||
317 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
49864cfa KR |
318 | static void |
319 | add_frag(add,off,type) | |
320 | symbolS *add; | |
321 | long off; | |
322 | int type; | |
323 | { | |
324 | the_ins.fragb[the_ins.nfrag].fragoff=the_ins.numo; | |
325 | the_ins.fragb[the_ins.nfrag].fadd=add; | |
326 | the_ins.fragb[the_ins.nfrag].foff=off; | |
327 | the_ins.fragb[the_ins.nfrag++].fragty=type; | |
1404ef23 | 328 | } |
fecd2382 | 329 | |
a1c7c0f3 ILT |
330 | #define isvar(ex) \ |
331 | (op (ex) != O_constant && op (ex) != O_big) | |
fecd2382 | 332 | |
49864cfa KR |
333 | static char *crack_operand PARAMS ((char *str, struct m68k_op *opP)); |
334 | static int get_num PARAMS ((struct m68k_exp *exp, int ok)); | |
49864cfa KR |
335 | static int reverse_16_bits PARAMS ((int in)); |
336 | static int reverse_8_bits PARAMS ((int in)); | |
49864cfa KR |
337 | static void install_gen_operand PARAMS ((int mode, int val)); |
338 | static void install_operand PARAMS ((int mode, int val)); | |
bcb8dff8 KR |
339 | static void s_bss PARAMS ((int)); |
340 | static void s_data1 PARAMS ((int)); | |
341 | static void s_data2 PARAMS ((int)); | |
342 | static void s_even PARAMS ((int)); | |
343 | static void s_proc PARAMS ((int)); | |
e9bb39b4 ILT |
344 | static void mri_chip PARAMS ((void)); |
345 | static void s_chip PARAMS ((int)); | |
27a53b88 | 346 | static void s_fopt PARAMS ((int)); |
6700d36e ILT |
347 | static void s_opt PARAMS ((int)); |
348 | static void s_reg PARAMS ((int)); | |
e14994d9 ILT |
349 | static void s_restore PARAMS ((int)); |
350 | static void s_save PARAMS ((int)); | |
b4ec75e0 ILT |
351 | static void s_mri_if PARAMS ((int)); |
352 | static void s_mri_else PARAMS ((int)); | |
353 | static void s_mri_endi PARAMS ((int)); | |
354 | static void s_mri_break PARAMS ((int)); | |
355 | static void s_mri_next PARAMS ((int)); | |
356 | static void s_mri_for PARAMS ((int)); | |
357 | static void s_mri_endf PARAMS ((int)); | |
358 | static void s_mri_repeat PARAMS ((int)); | |
359 | static void s_mri_until PARAMS ((int)); | |
360 | static void s_mri_while PARAMS ((int)); | |
361 | static void s_mri_endw PARAMS ((int)); | |
49864cfa KR |
362 | |
363 | static int current_architecture; | |
7c15cbe8 | 364 | |
b79de3a1 KR |
365 | struct m68k_cpu { |
366 | unsigned long arch; | |
367 | const char *name; | |
9e64486e | 368 | int alias; |
b79de3a1 KR |
369 | }; |
370 | ||
371 | static const struct m68k_cpu archs[] = { | |
9e64486e ILT |
372 | { m68000, "68000", 0 }, |
373 | { m68010, "68010", 0 }, | |
374 | { m68020, "68020", 0 }, | |
375 | { m68030, "68030", 0 }, | |
376 | { m68040, "68040", 0 }, | |
377 | { m68060, "68060", 0 }, | |
378 | { cpu32, "cpu32", 0 }, | |
379 | { m68881, "68881", 0 }, | |
380 | { m68851, "68851", 0 }, | |
8d20a0a8 | 381 | { mcf5200, "5200", 0 }, |
b79de3a1 KR |
382 | /* Aliases (effectively, so far as gas is concerned) for the above |
383 | cpus. */ | |
9e64486e ILT |
384 | { m68020, "68k", 1 }, |
385 | { m68000, "68302", 1 }, | |
386 | { m68000, "68008", 1 }, | |
387 | { m68000, "68ec000", 1 }, | |
388 | { m68000, "68hc000", 1 }, | |
389 | { m68000, "68hc001", 1 }, | |
390 | { m68020, "68ec020", 1 }, | |
391 | { m68030, "68ec030", 1 }, | |
392 | { m68040, "68ec040", 1 }, | |
8d20a0a8 | 393 | { m68060, "68ec060", 1 }, |
9e64486e ILT |
394 | { cpu32, "68330", 1 }, |
395 | { cpu32, "68331", 1 }, | |
396 | { cpu32, "68332", 1 }, | |
397 | { cpu32, "68333", 1 }, | |
398 | { cpu32, "68340", 1 }, | |
399 | { cpu32, "68360", 1 }, | |
400 | { m68881, "68882", 1 }, | |
b79de3a1 KR |
401 | }; |
402 | ||
403 | static const int n_archs = sizeof (archs) / sizeof (archs[0]); | |
404 | ||
fecd2382 RP |
405 | /* BCC68000 is for patching in an extra jmp instruction for long offsets |
406 | on the 68000. The 68000 doesn't support long branches with branchs */ | |
407 | ||
408 | /* This table desribes how you change sizes for the various types of variable | |
409 | size expressions. This version only supports two kinds. */ | |
410 | ||
49864cfa KR |
411 | /* Note that calls to frag_var need to specify the maximum expansion |
412 | needed; this is currently 10 bytes for DBCC. */ | |
fecd2382 RP |
413 | |
414 | /* The fields are: | |
a39116f1 RP |
415 | How far Forward this mode will reach: |
416 | How far Backward this mode will reach: | |
417 | How many bytes this mode will add to the size of the frag | |
418 | Which mode to go to if the offset won't fit in this one | |
419 | */ | |
04ef74bb | 420 | relax_typeS md_relax_table[] = |
355afbcd KR |
421 | { |
422 | {1, 1, 0, 0}, /* First entries aren't used */ | |
423 | {1, 1, 0, 0}, /* For no good reason except */ | |
424 | {1, 1, 0, 0}, /* that the VAX doesn't either */ | |
425 | {1, 1, 0, 0}, | |
426 | ||
427 | {(127), (-128), 0, TAB (ABRANCH, SHORT)}, | |
428 | {(32767), (-32768), 2, TAB (ABRANCH, LONG)}, | |
429 | {0, 0, 4, 0}, | |
430 | {1, 1, 0, 0}, | |
431 | ||
432 | {1, 1, 0, 0}, /* FBRANCH doesn't come BYTE */ | |
433 | {(32767), (-32768), 2, TAB (FBRANCH, LONG)}, | |
434 | {0, 0, 4, 0}, | |
435 | {1, 1, 0, 0}, | |
436 | ||
437 | {1, 1, 0, 0}, /* PCREL doesn't come BYTE */ | |
438 | {(32767), (-32768), 2, TAB (PCREL, LONG)}, | |
439 | {0, 0, 4, 0}, | |
440 | {1, 1, 0, 0}, | |
441 | ||
442 | {(127), (-128), 0, TAB (BCC68000, SHORT)}, | |
443 | {(32767), (-32768), 2, TAB (BCC68000, LONG)}, | |
444 | {0, 0, 6, 0}, /* jmp long space */ | |
445 | {1, 1, 0, 0}, | |
446 | ||
447 | {1, 1, 0, 0}, /* DBCC doesn't come BYTE */ | |
448 | {(32767), (-32768), 2, TAB (DBCC, LONG)}, | |
449 | {0, 0, 10, 0}, /* bra/jmp long space */ | |
450 | {1, 1, 0, 0}, | |
451 | ||
452 | {1, 1, 0, 0}, /* PCLEA doesn't come BYTE */ | |
453 | {32767, -32768, 2, TAB (PCLEA, LONG)}, | |
454 | {0, 0, 6, 0}, | |
455 | {1, 1, 0, 0}, | |
456 | ||
04ef74bb KR |
457 | /* For, e.g., jmp pcrel indexed. */ |
458 | {125, -130, 0, TAB (PCINDEX, SHORT)}, | |
459 | {32765, -32770, 2, TAB (PCINDEX, LONG)}, | |
460 | {0, 0, 4, 0}, | |
461 | {1, 1, 0, 0}, | |
355afbcd | 462 | }; |
fecd2382 RP |
463 | |
464 | /* These are the machine dependent pseudo-ops. These are included so | |
465 | the assembler can work on the output from the SUN C compiler, which | |
466 | generates these. | |
a39116f1 | 467 | */ |
fecd2382 RP |
468 | |
469 | /* This table describes all the machine specific pseudo-ops the assembler | |
470 | has to support. The fields are: | |
a39116f1 RP |
471 | pseudo-op name without dot |
472 | function to call to execute this pseudo-op | |
473 | Integer arg to pass to the function | |
474 | */ | |
326b087c | 475 | const pseudo_typeS md_pseudo_table[] = |
355afbcd KR |
476 | { |
477 | {"data1", s_data1, 0}, | |
478 | {"data2", s_data2, 0}, | |
479 | {"bss", s_bss, 0}, | |
480 | {"even", s_even, 0}, | |
481 | {"skip", s_space, 0}, | |
482 | {"proc", s_proc, 0}, | |
a043f579 | 483 | #if defined (TE_SUN3) || defined (OBJ_ELF) |
355afbcd | 484 | {"align", s_align_bytes, 0}, |
5f8cb05e ILT |
485 | #endif |
486 | #ifdef OBJ_ELF | |
487 | {"swbeg", s_ignore, 0}, | |
bec66218 | 488 | #endif |
9e64486e ILT |
489 | {"extend", float_cons, 'x'}, |
490 | {"ldouble", float_cons, 'x'}, | |
e9bb39b4 ILT |
491 | |
492 | /* The following pseudo-ops are supported for MRI compatibility. */ | |
493 | {"chip", s_chip, 0}, | |
494 | {"comline", s_space, 1}, | |
27a53b88 ILT |
495 | {"fopt", s_fopt, 0}, |
496 | {"mask2", s_ignore, 0}, | |
6700d36e ILT |
497 | {"opt", s_opt, 0}, |
498 | {"reg", s_reg, 0}, | |
e14994d9 ILT |
499 | {"restore", s_restore, 0}, |
500 | {"save", s_save, 0}, | |
e9bb39b4 | 501 | |
b4ec75e0 ILT |
502 | {"if", s_mri_if, 0}, |
503 | {"if.b", s_mri_if, 'b'}, | |
504 | {"if.w", s_mri_if, 'w'}, | |
505 | {"if.l", s_mri_if, 'l'}, | |
506 | {"else", s_mri_else, 0}, | |
507 | {"else.s", s_mri_else, 's'}, | |
508 | {"else.l", s_mri_else, 'l'}, | |
509 | {"endi", s_mri_endi, 0}, | |
510 | {"break", s_mri_break, 0}, | |
511 | {"break.s", s_mri_break, 's'}, | |
512 | {"break.l", s_mri_break, 'l'}, | |
513 | {"next", s_mri_next, 0}, | |
514 | {"next.s", s_mri_next, 's'}, | |
515 | {"next.l", s_mri_next, 'l'}, | |
516 | {"for", s_mri_for, 0}, | |
517 | {"for.b", s_mri_for, 'b'}, | |
518 | {"for.w", s_mri_for, 'w'}, | |
519 | {"for.l", s_mri_for, 'l'}, | |
520 | {"endf", s_mri_endf, 0}, | |
521 | {"repeat", s_mri_repeat, 0}, | |
522 | {"until", s_mri_until, 0}, | |
523 | {"until.b", s_mri_until, 'b'}, | |
524 | {"until.w", s_mri_until, 'w'}, | |
525 | {"until.l", s_mri_until, 'l'}, | |
526 | {"while", s_mri_while, 0}, | |
527 | {"while.b", s_mri_while, 'b'}, | |
528 | {"while.w", s_mri_while, 'w'}, | |
529 | {"while.l", s_mri_while, 'l'}, | |
530 | {"endw", s_mri_endw, 0}, | |
531 | ||
355afbcd | 532 | {0, 0, 0} |
fecd2382 RP |
533 | }; |
534 | ||
535 | ||
3ad9ec6a | 536 | /* The mote pseudo ops are put into the opcode table, since they |
355afbcd | 537 | don't start with a . they look like opcodes to gas. |
3ad9ec6a | 538 | */ |
355afbcd | 539 | extern void obj_coff_section (); |
3ad9ec6a | 540 | |
49864cfa | 541 | CONST pseudo_typeS mote_pseudo_table[] = |
3ad9ec6a ILT |
542 | { |
543 | ||
b79de3a1 | 544 | {"dcl", cons, 4}, |
355afbcd | 545 | {"dc", cons, 2}, |
b79de3a1 KR |
546 | {"dcw", cons, 2}, |
547 | {"dcb", cons, 1}, | |
3ad9ec6a | 548 | |
b79de3a1 | 549 | {"dsl", s_space, 4}, |
355afbcd | 550 | {"ds", s_space, 2}, |
b79de3a1 KR |
551 | {"dsw", s_space, 2}, |
552 | {"dsb", s_space, 1}, | |
3ad9ec6a | 553 | |
355afbcd | 554 | {"xdef", s_globl, 0}, |
a043f579 ILT |
555 | #ifdef OBJ_ELF |
556 | {"align", s_align_bytes, 0}, | |
557 | #else | |
355afbcd | 558 | {"align", s_align_ptwo, 0}, |
a043f579 | 559 | #endif |
3ad9ec6a | 560 | #ifdef M68KCOFF |
355afbcd KR |
561 | {"sect", obj_coff_section, 0}, |
562 | {"section", obj_coff_section, 0}, | |
3ad9ec6a | 563 | #endif |
bcb8dff8 | 564 | {0, 0, 0} |
3ad9ec6a ILT |
565 | }; |
566 | ||
fecd2382 RP |
567 | #define issbyte(x) ((x)>=-128 && (x)<=127) |
568 | #define isubyte(x) ((x)>=0 && (x)<=255) | |
569 | #define issword(x) ((x)>=-32768 && (x)<=32767) | |
570 | #define isuword(x) ((x)>=0 && (x)<=65535) | |
f8701a3f | 571 | |
e284846a | 572 | #define isbyte(x) ((x)>= -255 && (x)<=255) |
a7512014 | 573 | #define isword(x) ((x)>=-65536 && (x)<=65535) |
fecd2382 | 574 | #define islong(x) (1) |
f8701a3f SC |
575 | |
576 | extern char *input_line_pointer; | |
fecd2382 | 577 | |
fecd2382 RP |
578 | static char mklower_table[256]; |
579 | #define mklower(c) (mklower_table[(unsigned char)(c)]) | |
f8701a3f | 580 | static char notend_table[256]; |
fecd2382 | 581 | static char alt_notend_table[256]; |
a1c7c0f3 ILT |
582 | #define notend(s) \ |
583 | (! (notend_table[(unsigned char) *s] \ | |
584 | || (*s == ':' \ | |
585 | && alt_notend_table[(unsigned char) s[1]]))) | |
7c15cbe8 | 586 | |
49864cfa | 587 | #if defined (M68KCOFF) && !defined (BFD_ASSEMBLER) |
3ad9ec6a | 588 | |
82489ea0 KR |
589 | #ifdef NO_PCREL_RELOCS |
590 | ||
591 | int | |
592 | make_pcrel_absolute(fixP, add_number) | |
593 | fixS *fixP; | |
594 | long *add_number; | |
595 | { | |
596 | register unsigned char *opcode = fixP->fx_frag->fr_opcode; | |
597 | ||
598 | /* rewrite the PC relative instructions to absolute address ones. | |
599 | * these are rumoured to be faster, and the apollo linker refuses | |
600 | * to deal with the PC relative relocations. | |
601 | */ | |
602 | if (opcode[0] == 0x60 && opcode[1] == 0xff) /* BRA -> JMP */ | |
603 | { | |
604 | opcode[0] = 0x4e; | |
605 | opcode[1] = 0xf9; | |
606 | } | |
607 | else if (opcode[0] == 0x61 && opcode[1] == 0xff) /* BSR -> JSR */ | |
608 | { | |
609 | opcode[0] = 0x4e; | |
610 | opcode[1] = 0xb9; | |
611 | } | |
612 | else | |
613 | as_fatal ("Unknown PC relative instruction"); | |
614 | *add_number -= 4; | |
615 | return 0; | |
616 | } | |
617 | ||
618 | #endif /* NO_PCREL_RELOCS */ | |
619 | ||
355afbcd KR |
620 | short |
621 | tc_coff_fix2rtype (fixP) | |
622 | fixS *fixP; | |
fecd2382 | 623 | { |
3b06beb7 ILT |
624 | if (fixP->fx_tcbit && fixP->fx_size == 4) |
625 | return R_RELLONG_NEG; | |
82489ea0 KR |
626 | #ifdef NO_PCREL_RELOCS |
627 | know (fixP->fx_pcrel == 0); | |
628 | return (fixP->fx_size == 1 ? R_RELBYTE | |
629 | : fixP->fx_size == 2 ? R_DIR16 | |
630 | : R_DIR32); | |
631 | #else | |
355afbcd KR |
632 | return (fixP->fx_pcrel ? |
633 | (fixP->fx_size == 1 ? R_PCRBYTE : | |
634 | fixP->fx_size == 2 ? R_PCRWORD : | |
635 | R_PCRLONG) : | |
636 | (fixP->fx_size == 1 ? R_RELBYTE : | |
637 | fixP->fx_size == 2 ? R_RELWORD : | |
638 | R_RELLONG)); | |
82489ea0 | 639 | #endif |
3ad9ec6a ILT |
640 | } |
641 | ||
642 | #endif | |
fecd2382 | 643 | |
a043f579 ILT |
644 | #ifdef OBJ_ELF |
645 | ||
646 | /* Compute the relocation code for a fixup of SIZE bytes, using pc | |
647 | relative relocation if PCREL is non-zero. PIC says whether a special | |
648 | pic relocation was requested. */ | |
649 | ||
650 | static bfd_reloc_code_real_type get_reloc_code | |
651 | PARAMS ((int, int, enum pic_relocation)); | |
652 | ||
653 | static bfd_reloc_code_real_type | |
654 | get_reloc_code (size, pcrel, pic) | |
655 | int size; | |
656 | int pcrel; | |
657 | enum pic_relocation pic; | |
658 | { | |
659 | switch (pic) | |
660 | { | |
661 | case pic_got_pcrel: | |
662 | switch (size) | |
663 | { | |
664 | case 1: | |
665 | return BFD_RELOC_8_GOT_PCREL; | |
666 | case 2: | |
667 | return BFD_RELOC_16_GOT_PCREL; | |
668 | case 4: | |
669 | return BFD_RELOC_32_GOT_PCREL; | |
670 | } | |
671 | break; | |
672 | ||
673 | case pic_got_off: | |
674 | switch (size) | |
675 | { | |
676 | case 1: | |
677 | return BFD_RELOC_8_GOTOFF; | |
678 | case 2: | |
679 | return BFD_RELOC_16_GOTOFF; | |
680 | case 4: | |
681 | return BFD_RELOC_32_GOTOFF; | |
682 | } | |
683 | break; | |
684 | ||
685 | case pic_plt_pcrel: | |
686 | switch (size) | |
687 | { | |
688 | case 1: | |
689 | return BFD_RELOC_8_PLT_PCREL; | |
690 | case 2: | |
691 | return BFD_RELOC_16_PLT_PCREL; | |
692 | case 4: | |
693 | return BFD_RELOC_32_PLT_PCREL; | |
694 | } | |
695 | break; | |
696 | ||
697 | case pic_plt_off: | |
698 | switch (size) | |
699 | { | |
700 | case 1: | |
701 | return BFD_RELOC_8_PLTOFF; | |
702 | case 2: | |
703 | return BFD_RELOC_16_PLTOFF; | |
704 | case 4: | |
705 | return BFD_RELOC_32_PLTOFF; | |
706 | } | |
707 | break; | |
708 | ||
709 | case pic_none: | |
710 | if (pcrel) | |
711 | { | |
712 | switch (size) | |
713 | { | |
714 | case 1: | |
715 | return BFD_RELOC_8_PCREL; | |
716 | case 2: | |
717 | return BFD_RELOC_16_PCREL; | |
718 | case 4: | |
719 | return BFD_RELOC_32_PCREL; | |
720 | } | |
721 | } | |
722 | else | |
723 | { | |
724 | switch (size) | |
725 | { | |
726 | case 1: | |
727 | return BFD_RELOC_8; | |
728 | case 2: | |
729 | return BFD_RELOC_16; | |
730 | case 4: | |
731 | return BFD_RELOC_32; | |
732 | } | |
733 | } | |
734 | } | |
735 | ||
736 | as_bad ("Can not do %d byte %s%srelocation", size, | |
737 | pcrel ? "pc-relative " : "", | |
738 | pic == pic_none ? "" : "pic "); | |
739 | return BFD_RELOC_NONE; | |
740 | } | |
741 | ||
742 | /* Here we decide which fixups can be adjusted to make them relative | |
743 | to the beginning of the section instead of the symbol. Basically | |
744 | we need to make sure that the dynamic relocations are done | |
745 | correctly, so in some cases we force the original symbol to be | |
746 | used. */ | |
747 | int | |
748 | tc_m68k_fix_adjustable (fixP) | |
749 | fixS *fixP; | |
750 | { | |
751 | /* Prevent all adjustments to global symbols. */ | |
752 | if (S_IS_EXTERNAL (fixP->fx_addsy)) | |
753 | return 0; | |
754 | ||
755 | /* adjust_reloc_syms doesn't know about the GOT */ | |
756 | switch (fixP->fx_r_type) | |
757 | { | |
758 | case BFD_RELOC_8_GOT_PCREL: | |
759 | case BFD_RELOC_16_GOT_PCREL: | |
760 | case BFD_RELOC_32_GOT_PCREL: | |
761 | case BFD_RELOC_8_GOTOFF: | |
762 | case BFD_RELOC_16_GOTOFF: | |
763 | case BFD_RELOC_32_GOTOFF: | |
764 | case BFD_RELOC_8_PLT_PCREL: | |
765 | case BFD_RELOC_16_PLT_PCREL: | |
766 | case BFD_RELOC_32_PLT_PCREL: | |
767 | case BFD_RELOC_8_PLTOFF: | |
768 | case BFD_RELOC_16_PLTOFF: | |
769 | case BFD_RELOC_32_PLTOFF: | |
770 | return 0; | |
771 | ||
772 | default: | |
773 | return 1; | |
774 | } | |
775 | } | |
776 | ||
777 | #else /* !OBJ_ELF */ | |
778 | ||
779 | #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC | |
780 | ||
781 | #endif /* OBJ_ELF */ | |
782 | ||
49864cfa KR |
783 | #ifdef BFD_ASSEMBLER |
784 | ||
785 | arelent * | |
786 | tc_gen_reloc (section, fixp) | |
787 | asection *section; | |
788 | fixS *fixp; | |
789 | { | |
790 | arelent *reloc; | |
791 | bfd_reloc_code_real_type code; | |
792 | ||
9e64486e | 793 | if (fixp->fx_tcbit) |
3b06beb7 ILT |
794 | abort (); |
795 | ||
a043f579 | 796 | if (fixp->fx_r_type != BFD_RELOC_NONE) |
7f003b7f ILT |
797 | { |
798 | code = fixp->fx_r_type; | |
799 | ||
800 | /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible | |
801 | that fixup_segment converted a non-PC relative reloc into a | |
802 | PC relative reloc. In such a case, we need to convert the | |
803 | reloc code. */ | |
804 | if (fixp->fx_pcrel) | |
805 | { | |
806 | switch (code) | |
807 | { | |
808 | case BFD_RELOC_8: | |
809 | code = BFD_RELOC_8_PCREL; | |
810 | break; | |
811 | case BFD_RELOC_16: | |
812 | code = BFD_RELOC_16_PCREL; | |
813 | break; | |
814 | case BFD_RELOC_32: | |
815 | code = BFD_RELOC_32_PCREL; | |
816 | break; | |
817 | case BFD_RELOC_8_PCREL: | |
818 | case BFD_RELOC_16_PCREL: | |
819 | case BFD_RELOC_32_PCREL: | |
820 | case BFD_RELOC_8_GOT_PCREL: | |
821 | case BFD_RELOC_16_GOT_PCREL: | |
822 | case BFD_RELOC_32_GOT_PCREL: | |
823 | case BFD_RELOC_8_GOTOFF: | |
824 | case BFD_RELOC_16_GOTOFF: | |
825 | case BFD_RELOC_32_GOTOFF: | |
826 | case BFD_RELOC_8_PLT_PCREL: | |
827 | case BFD_RELOC_16_PLT_PCREL: | |
828 | case BFD_RELOC_32_PLT_PCREL: | |
829 | case BFD_RELOC_8_PLTOFF: | |
830 | case BFD_RELOC_16_PLTOFF: | |
831 | case BFD_RELOC_32_PLTOFF: | |
832 | break; | |
833 | default: | |
834 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
835 | "Cannot make %s relocation PC relative", | |
836 | bfd_get_reloc_code_name (code)); | |
837 | } | |
838 | } | |
839 | } | |
a043f579 | 840 | else |
49864cfa | 841 | { |
a043f579 ILT |
842 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) |
843 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
844 | { | |
49864cfa | 845 | #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break |
a043f579 ILT |
846 | MAP (1, 0, BFD_RELOC_8); |
847 | MAP (2, 0, BFD_RELOC_16); | |
848 | MAP (4, 0, BFD_RELOC_32); | |
849 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
850 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
851 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
852 | default: | |
853 | abort (); | |
854 | } | |
49864cfa | 855 | } |
a043f579 ILT |
856 | #undef F |
857 | #undef MAP | |
49864cfa KR |
858 | |
859 | reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent)); | |
860 | assert (reloc != 0); | |
861 | reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym; | |
862 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
a043f579 | 863 | #ifndef OBJ_ELF |
49864cfa KR |
864 | if (fixp->fx_pcrel) |
865 | reloc->addend = fixp->fx_addnumber; | |
866 | else | |
867 | reloc->addend = 0; | |
a043f579 ILT |
868 | #else |
869 | if (!fixp->fx_pcrel) | |
870 | reloc->addend = fixp->fx_addnumber; | |
7f003b7f | 871 | else |
a043f579 ILT |
872 | reloc->addend = (section->vma |
873 | + (fixp->fx_pcrel_adjust == 64 | |
874 | ? -1 : fixp->fx_pcrel_adjust) | |
875 | + fixp->fx_addnumber | |
876 | + md_pcrel_from (fixp)); | |
a043f579 | 877 | #endif |
49864cfa KR |
878 | |
879 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
880 | assert (reloc->howto != 0); | |
881 | ||
882 | return reloc; | |
883 | } | |
884 | ||
885 | #endif /* BFD_ASSEMBLER */ | |
886 | ||
49864cfa KR |
887 | /* Handle of the OPCODE hash table. NULL means any use before |
888 | m68k_ip_begin() will crash. */ | |
889 | static struct hash_control *op_hash; | |
fecd2382 | 890 | \f |
a1c7c0f3 | 891 | /* Assemble an m68k instruction. */ |
355afbcd | 892 | |
355afbcd KR |
893 | void |
894 | m68k_ip (instring) | |
6d27d3a2 | 895 | char *instring; |
fecd2382 | 896 | { |
6d27d3a2 KR |
897 | register char *p; |
898 | register struct m68k_op *opP; | |
899 | register struct m68k_incant *opcode; | |
a1c7c0f3 | 900 | register const char *s; |
6d27d3a2 | 901 | register int tmpreg = 0, baseo = 0, outro = 0, nextword; |
3ad9ec6a | 902 | char *pdot, *pdotmove; |
a1c7c0f3 | 903 | enum m68k_size siz1, siz2; |
355afbcd KR |
904 | char c; |
905 | int losing; | |
906 | int opsfound; | |
907 | char *crack_operand (); | |
6d27d3a2 KR |
908 | LITTLENUM_TYPE words[6]; |
909 | LITTLENUM_TYPE *wordp; | |
8be74775 | 910 | unsigned long ok_arch = 0; |
6d27d3a2 KR |
911 | |
912 | if (*instring == ' ') | |
913 | instring++; /* skip leading whitespace */ | |
914 | ||
915 | /* Scan up to end of operation-code, which MUST end in end-of-string | |
916 | or exactly 1 space. */ | |
3ad9ec6a | 917 | pdot = 0; |
355afbcd KR |
918 | for (p = instring; *p != '\0'; p++) |
919 | { | |
920 | if (*p == ' ') | |
921 | break; | |
922 | if (*p == '.') | |
923 | pdot = p; | |
924 | } | |
6d27d3a2 | 925 | |
355afbcd KR |
926 | if (p == instring) |
927 | { | |
928 | the_ins.error = "No operator"; | |
355afbcd KR |
929 | return; |
930 | } | |
6d27d3a2 KR |
931 | |
932 | /* p now points to the end of the opcode name, probably whitespace. | |
a1c7c0f3 ILT |
933 | Make sure the name is null terminated by clobbering the |
934 | whitespace, look it up in the hash table, then fix it back. | |
3ad9ec6a | 935 | Remove a dot, first, since the opcode tables have none. */ |
355afbcd KR |
936 | if (pdot != NULL) |
937 | { | |
938 | for (pdotmove = pdot; pdotmove < p; pdotmove++) | |
939 | *pdotmove = pdotmove[1]; | |
940 | p--; | |
941 | } | |
3ad9ec6a | 942 | |
6d27d3a2 KR |
943 | c = *p; |
944 | *p = '\0'; | |
355afbcd | 945 | opcode = (struct m68k_incant *) hash_find (op_hash, instring); |
6d27d3a2 KR |
946 | *p = c; |
947 | ||
355afbcd KR |
948 | if (pdot != NULL) |
949 | { | |
950 | for (pdotmove = p; pdotmove > pdot; pdotmove--) | |
951 | *pdotmove = pdotmove[-1]; | |
952 | *pdot = '.'; | |
953 | ++p; | |
954 | } | |
3ad9ec6a | 955 | |
355afbcd KR |
956 | if (opcode == NULL) |
957 | { | |
958 | the_ins.error = "Unknown operator"; | |
355afbcd KR |
959 | return; |
960 | } | |
6d27d3a2 KR |
961 | |
962 | /* found a legitimate opcode, start matching operands */ | |
355afbcd KR |
963 | while (*p == ' ') |
964 | ++p; | |
6d27d3a2 | 965 | |
355afbcd KR |
966 | if (opcode->m_operands == 0) |
967 | { | |
968 | char *old = input_line_pointer; | |
969 | *old = '\n'; | |
970 | input_line_pointer = p; | |
971 | /* Ahh - it's a motorola style psuedo op */ | |
972 | mote_pseudo_table[opcode->m_opnum].poc_handler | |
973 | (mote_pseudo_table[opcode->m_opnum].poc_val); | |
974 | input_line_pointer = old; | |
975 | *old = 0; | |
3ad9ec6a | 976 | |
355afbcd KR |
977 | return; |
978 | } | |
3ad9ec6a | 979 | |
92a25e12 ILT |
980 | if (flag_mri && opcode->m_opnum == 0) |
981 | { | |
982 | /* In MRI mode, random garbage is allowed after an instruction | |
983 | which accepts no operands. */ | |
984 | the_ins.args = opcode->m_operands; | |
985 | the_ins.numargs = opcode->m_opnum; | |
986 | the_ins.numo = opcode->m_codenum; | |
987 | the_ins.opcode[0] = getone (opcode); | |
988 | the_ins.opcode[1] = gettwo (opcode); | |
989 | return; | |
990 | } | |
991 | ||
355afbcd KR |
992 | for (opP = &the_ins.operands[0]; *p; opP++) |
993 | { | |
355afbcd | 994 | p = crack_operand (p, opP); |
6d27d3a2 | 995 | |
355afbcd KR |
996 | if (opP->error) |
997 | { | |
998 | the_ins.error = opP->error; | |
999 | return; | |
1000 | } | |
6d27d3a2 | 1001 | } |
6d27d3a2 KR |
1002 | |
1003 | opsfound = opP - &the_ins.operands[0]; | |
1004 | ||
a1c7c0f3 ILT |
1005 | /* This ugly hack is to support the floating pt opcodes in their |
1006 | standard form. Essentially, we fake a first enty of type COP#1 */ | |
355afbcd KR |
1007 | if (opcode->m_operands[0] == 'I') |
1008 | { | |
1009 | int n; | |
6d27d3a2 | 1010 | |
355afbcd KR |
1011 | for (n = opsfound; n > 0; --n) |
1012 | the_ins.operands[n] = the_ins.operands[n - 1]; | |
6d27d3a2 | 1013 | |
a1c7c0f3 ILT |
1014 | memset ((char *) (&the_ins.operands[0]), '\0', |
1015 | sizeof (the_ins.operands[0])); | |
1016 | the_ins.operands[0].mode = CONTROL; | |
27a53b88 | 1017 | the_ins.operands[0].reg = m68k_float_copnum; |
355afbcd KR |
1018 | opsfound++; |
1019 | } | |
6d27d3a2 KR |
1020 | |
1021 | /* We've got the operands. Find an opcode that'll accept them */ | |
355afbcd KR |
1022 | for (losing = 0;;) |
1023 | { | |
49864cfa KR |
1024 | /* If we didn't get the right number of ops, or we have no |
1025 | common model with this pattern then reject this pattern. */ | |
6d27d3a2 | 1026 | |
0b810a6e | 1027 | ok_arch |= opcode->m_arch; |
355afbcd KR |
1028 | if (opsfound != opcode->m_opnum |
1029 | || ((opcode->m_arch & current_architecture) == 0)) | |
0b810a6e | 1030 | ++losing; |
355afbcd KR |
1031 | else |
1032 | { | |
a1c7c0f3 ILT |
1033 | for (s = opcode->m_operands, opP = &the_ins.operands[0]; |
1034 | *s && !losing; | |
1035 | s += 2, opP++) | |
355afbcd KR |
1036 | { |
1037 | /* Warning: this switch is huge! */ | |
49864cfa KR |
1038 | /* I've tried to organize the cases into this order: |
1039 | non-alpha first, then alpha by letter. Lower-case | |
1040 | goes directly before uppercase counterpart. */ | |
1041 | /* Code with multiple case ...: gets sorted by the lowest | |
1042 | case ... it belongs to. I hope this makes sense. */ | |
355afbcd KR |
1043 | switch (*s) |
1044 | { | |
a1c7c0f3 ILT |
1045 | case '!': |
1046 | switch (opP->mode) | |
1047 | { | |
1048 | case IMMED: | |
1049 | case DREG: | |
1050 | case AREG: | |
1051 | case FPREG: | |
1052 | case CONTROL: | |
1053 | case AINC: | |
1054 | case ADEC: | |
1055 | case REGLST: | |
1056 | losing++; | |
1057 | break; | |
1058 | default: | |
1059 | break; | |
1060 | } | |
355afbcd KR |
1061 | break; |
1062 | ||
1063 | case '`': | |
1064 | switch (opP->mode) | |
1065 | { | |
355afbcd KR |
1066 | case IMMED: |
1067 | case DREG: | |
1068 | case AREG: | |
a1c7c0f3 ILT |
1069 | case FPREG: |
1070 | case CONTROL: | |
355afbcd KR |
1071 | case AINC: |
1072 | case REGLST: | |
1073 | case AINDR: | |
1074 | losing++; | |
bcb8dff8 KR |
1075 | break; |
1076 | default: | |
1077 | break; | |
355afbcd KR |
1078 | } |
1079 | break; | |
8be74775 | 1080 | |
b4d51f3d ILT |
1081 | case '<': |
1082 | switch (opP->mode) | |
1083 | { | |
1084 | case DREG: | |
1085 | case AREG: | |
1086 | case FPREG: | |
1087 | case CONTROL: | |
1088 | case IMMED: | |
1089 | case ADEC: | |
1090 | case REGLST: | |
1091 | losing++; | |
1092 | break; | |
1093 | default: | |
1094 | break; | |
1095 | } | |
1096 | break; | |
1097 | ||
1098 | case '>': | |
1099 | switch (opP->mode) | |
1100 | { | |
1101 | case DREG: | |
1102 | case AREG: | |
1103 | case FPREG: | |
1104 | case CONTROL: | |
1105 | case IMMED: | |
1106 | case AINC: | |
1107 | case REGLST: | |
1108 | losing++; | |
1109 | break; | |
1110 | case ABSL: | |
1111 | break; | |
1112 | default: | |
1113 | if (opP->reg == PC | |
1114 | || opP->reg == ZPC) | |
1115 | losing++; | |
1116 | break; | |
1117 | } | |
1118 | break; | |
1119 | ||
1120 | case 'm': | |
1121 | switch (opP->mode) | |
1122 | { | |
1123 | case DREG: | |
1124 | case AREG: | |
1125 | case AINDR: | |
1126 | case AINC: | |
1127 | case ADEC: | |
1128 | break; | |
1129 | default: | |
1130 | losing++; | |
1131 | } | |
1132 | break; | |
1133 | ||
1134 | case 'n': | |
1135 | switch (opP->mode) | |
1136 | { | |
1137 | case DISP: | |
1138 | break; | |
1139 | default: | |
1140 | losing++; | |
1141 | } | |
1142 | break; | |
1143 | ||
1144 | case 'o': | |
1145 | switch (opP->mode) | |
1146 | { | |
1147 | case BASE: | |
1148 | case ABSL: | |
1149 | case IMMED: | |
1150 | break; | |
1151 | default: | |
1152 | losing++; | |
1153 | } | |
1154 | break; | |
1155 | ||
1156 | case 'p': | |
1157 | switch (opP->mode) | |
1158 | { | |
1159 | case DREG: | |
1160 | case AREG: | |
1161 | case AINDR: | |
1162 | case AINC: | |
1163 | case ADEC: | |
1164 | case DISP: | |
1165 | break; | |
1166 | default: | |
1167 | losing++; | |
1168 | } | |
1169 | break; | |
1170 | ||
355afbcd KR |
1171 | case '#': |
1172 | if (opP->mode != IMMED) | |
1173 | losing++; | |
a1c7c0f3 ILT |
1174 | else if (s[1] == 'b' |
1175 | && ! isvar (&opP->disp) | |
336435bc ILT |
1176 | && (opP->disp.exp.X_op != O_constant |
1177 | || ! isbyte (opP->disp.exp.X_add_number))) | |
a1c7c0f3 | 1178 | losing++; |
a78bc551 ILT |
1179 | else if (s[1] == 'B' |
1180 | && ! isvar (&opP->disp) | |
1181 | && (opP->disp.exp.X_op != O_constant | |
1182 | || ! issbyte (opP->disp.exp.X_add_number))) | |
1183 | losing++; | |
a1c7c0f3 ILT |
1184 | else if (s[1] == 'w' |
1185 | && ! isvar (&opP->disp) | |
336435bc ILT |
1186 | && (opP->disp.exp.X_op != O_constant |
1187 | || ! isword (opP->disp.exp.X_add_number))) | |
a1c7c0f3 | 1188 | losing++; |
9e64486e ILT |
1189 | else if (s[1] == 'W' |
1190 | && ! isvar (&opP->disp) | |
1191 | && (opP->disp.exp.X_op != O_constant | |
1192 | || ! issword (opP->disp.exp.X_add_number))) | |
1193 | losing++; | |
355afbcd KR |
1194 | break; |
1195 | ||
1196 | case '^': | |
1197 | case 'T': | |
1198 | if (opP->mode != IMMED) | |
1199 | losing++; | |
1200 | break; | |
1201 | ||
1202 | case '$': | |
a1c7c0f3 ILT |
1203 | if (opP->mode == AREG |
1204 | || opP->mode == CONTROL | |
1205 | || opP->mode == FPREG | |
1206 | || opP->mode == IMMED | |
1207 | || opP->mode == REGLST | |
1208 | || (opP->mode != ABSL | |
1209 | && (opP->reg == PC | |
1210 | || opP->reg == ZPC))) | |
355afbcd KR |
1211 | losing++; |
1212 | break; | |
1213 | ||
1214 | case '%': | |
a1c7c0f3 ILT |
1215 | if (opP->mode == CONTROL |
1216 | || opP->mode == FPREG | |
1217 | || opP->mode == REGLST | |
a7512014 | 1218 | || opP->mode == IMMED |
a1c7c0f3 | 1219 | || (opP->mode != ABSL |
a1c7c0f3 ILT |
1220 | && (opP->reg == PC |
1221 | || opP->reg == ZPC))) | |
355afbcd KR |
1222 | losing++; |
1223 | break; | |
1224 | ||
355afbcd | 1225 | case '&': |
a1c7c0f3 ILT |
1226 | switch (opP->mode) |
1227 | { | |
1228 | case DREG: | |
1229 | case AREG: | |
1230 | case FPREG: | |
1231 | case CONTROL: | |
1232 | case IMMED: | |
1233 | case AINC: | |
1234 | case ADEC: | |
1235 | case REGLST: | |
1236 | losing++; | |
1237 | break; | |
1238 | case ABSL: | |
1239 | break; | |
1240 | default: | |
1241 | if (opP->reg == PC | |
1242 | || opP->reg == ZPC) | |
1243 | losing++; | |
1244 | break; | |
1245 | } | |
355afbcd KR |
1246 | break; |
1247 | ||
1248 | case '*': | |
a1c7c0f3 ILT |
1249 | if (opP->mode == CONTROL |
1250 | || opP->mode == FPREG | |
1251 | || opP->mode == REGLST) | |
355afbcd KR |
1252 | losing++; |
1253 | break; | |
1254 | ||
1255 | case '+': | |
1256 | if (opP->mode != AINC) | |
1257 | losing++; | |
1258 | break; | |
1259 | ||
1260 | case '-': | |
1261 | if (opP->mode != ADEC) | |
1262 | losing++; | |
1263 | break; | |
1264 | ||
1265 | case '/': | |
a1c7c0f3 ILT |
1266 | switch (opP->mode) |
1267 | { | |
1268 | case AREG: | |
1269 | case CONTROL: | |
1270 | case FPREG: | |
1271 | case AINC: | |
1272 | case ADEC: | |
1273 | case IMMED: | |
1274 | case REGLST: | |
1275 | losing++; | |
1276 | break; | |
1277 | default: | |
1278 | break; | |
1279 | } | |
355afbcd KR |
1280 | break; |
1281 | ||
1282 | case ';': | |
a1c7c0f3 ILT |
1283 | switch (opP->mode) |
1284 | { | |
1285 | case AREG: | |
1286 | case CONTROL: | |
1287 | case FPREG: | |
1288 | case REGLST: | |
1289 | losing++; | |
1290 | break; | |
1291 | default: | |
1292 | break; | |
1293 | } | |
355afbcd KR |
1294 | break; |
1295 | ||
1296 | case '?': | |
a1c7c0f3 ILT |
1297 | switch (opP->mode) |
1298 | { | |
1299 | case AREG: | |
1300 | case CONTROL: | |
1301 | case FPREG: | |
1302 | case AINC: | |
1303 | case ADEC: | |
1304 | case IMMED: | |
1305 | case REGLST: | |
1306 | losing++; | |
1307 | break; | |
1308 | case ABSL: | |
1309 | break; | |
1310 | default: | |
1311 | if (opP->reg == PC || opP->reg == ZPC) | |
1312 | losing++; | |
1313 | break; | |
1314 | } | |
355afbcd KR |
1315 | break; |
1316 | ||
1317 | case '@': | |
a1c7c0f3 ILT |
1318 | switch (opP->mode) |
1319 | { | |
1320 | case AREG: | |
1321 | case CONTROL: | |
1322 | case FPREG: | |
1323 | case IMMED: | |
1324 | case REGLST: | |
1325 | losing++; | |
1326 | break; | |
1327 | default: | |
1328 | break; | |
1329 | } | |
355afbcd KR |
1330 | break; |
1331 | ||
1332 | case '~': /* For now! (JF FOO is this right?) */ | |
a1c7c0f3 ILT |
1333 | switch (opP->mode) |
1334 | { | |
1335 | case DREG: | |
1336 | case AREG: | |
1337 | case CONTROL: | |
1338 | case FPREG: | |
1339 | case IMMED: | |
1340 | case REGLST: | |
1341 | losing++; | |
1342 | break; | |
1343 | case ABSL: | |
1344 | break; | |
1345 | default: | |
1346 | if (opP->reg == PC | |
1347 | || opP->reg == ZPC) | |
1348 | losing++; | |
1349 | break; | |
1350 | } | |
355afbcd KR |
1351 | break; |
1352 | ||
1353 | case '3': | |
a1c7c0f3 ILT |
1354 | if (opP->mode != CONTROL |
1355 | || (opP->reg != TT0 && opP->reg != TT1)) | |
355afbcd KR |
1356 | losing++; |
1357 | break; | |
1358 | ||
1359 | case 'A': | |
1360 | if (opP->mode != AREG) | |
1361 | losing++; | |
1362 | break; | |
a1c7c0f3 | 1363 | |
355afbcd KR |
1364 | case 'a': |
1365 | if (opP->mode != AINDR) | |
a1c7c0f3 | 1366 | ++losing; |
355afbcd | 1367 | break; |
a1c7c0f3 | 1368 | |
355afbcd | 1369 | case 'B': /* FOO */ |
a1c7c0f3 ILT |
1370 | if (opP->mode != ABSL |
1371 | || (flag_long_jumps | |
1372 | && strncmp (instring, "jbsr", 4) == 0)) | |
355afbcd KR |
1373 | losing++; |
1374 | break; | |
1375 | ||
1376 | case 'C': | |
a1c7c0f3 | 1377 | if (opP->mode != CONTROL || opP->reg != CCR) |
355afbcd KR |
1378 | losing++; |
1379 | break; | |
1380 | ||
a1c7c0f3 ILT |
1381 | case 'd': |
1382 | if (opP->mode != DISP | |
1383 | || opP->reg < ADDR0 | |
1384 | || opP->reg > ADDR7) | |
355afbcd KR |
1385 | losing++; |
1386 | break; | |
1387 | ||
1388 | case 'D': | |
1389 | if (opP->mode != DREG) | |
1390 | losing++; | |
1391 | break; | |
1392 | ||
1393 | case 'F': | |
a1c7c0f3 | 1394 | if (opP->mode != FPREG) |
355afbcd KR |
1395 | losing++; |
1396 | break; | |
1397 | ||
1398 | case 'I': | |
a1c7c0f3 | 1399 | if (opP->mode != CONTROL |
27a53b88 ILT |
1400 | || opP->reg < COP0 |
1401 | || opP->reg > COP7) | |
355afbcd KR |
1402 | losing++; |
1403 | break; | |
1404 | ||
1405 | case 'J': | |
a1c7c0f3 | 1406 | if (opP->mode != CONTROL |
355afbcd | 1407 | || opP->reg < USP |
82489ea0 KR |
1408 | || opP->reg > last_movec_reg) |
1409 | losing++; | |
1410 | else | |
355afbcd | 1411 | { |
a1c7c0f3 | 1412 | const enum m68k_register *rp; |
82489ea0 KR |
1413 | for (rp = control_regs; *rp; rp++) |
1414 | if (*rp == opP->reg) | |
1415 | break; | |
1416 | if (*rp == 0) | |
1417 | losing++; | |
1418 | } | |
355afbcd KR |
1419 | break; |
1420 | ||
1421 | case 'k': | |
1422 | if (opP->mode != IMMED) | |
1423 | losing++; | |
1424 | break; | |
8be74775 | 1425 | |
355afbcd KR |
1426 | case 'l': |
1427 | case 'L': | |
a1c7c0f3 ILT |
1428 | if (opP->mode == DREG |
1429 | || opP->mode == AREG | |
1430 | || opP->mode == FPREG) | |
355afbcd KR |
1431 | { |
1432 | if (s[1] == '8') | |
1433 | losing++; | |
1434 | else | |
1435 | { | |
a1c7c0f3 ILT |
1436 | switch (opP->mode) |
1437 | { | |
1438 | case DREG: | |
1439 | opP->mask = 1 << (opP->reg - DATA0); | |
1440 | break; | |
1441 | case AREG: | |
1442 | opP->mask = 1 << (opP->reg - ADDR0 + 8); | |
1443 | break; | |
1444 | case FPREG: | |
1445 | opP->mask = 1 << (opP->reg - FP0 + 16); | |
1446 | break; | |
1447 | default: | |
1448 | abort (); | |
1449 | } | |
355afbcd | 1450 | opP->mode = REGLST; |
355afbcd KR |
1451 | } |
1452 | } | |
a1c7c0f3 | 1453 | else if (opP->mode == CONTROL) |
355afbcd | 1454 | { |
a1c7c0f3 ILT |
1455 | if (s[1] != '8') |
1456 | losing++; | |
1457 | else | |
1458 | { | |
1459 | switch (opP->reg) | |
1460 | { | |
1461 | case FPI: | |
1462 | opP->mask = 1 << 24; | |
1463 | break; | |
1464 | case FPS: | |
1465 | opP->mask = 1 << 25; | |
1466 | break; | |
1467 | case FPC: | |
1468 | opP->mask = 1 << 26; | |
1469 | break; | |
1470 | default: | |
1471 | losing++; | |
1472 | break; | |
1473 | } | |
1474 | opP->mode = REGLST; | |
1475 | } | |
355afbcd | 1476 | } |
6700d36e ILT |
1477 | else if (opP->mode == ABSL |
1478 | && opP->disp.size == SIZE_UNSPEC | |
1479 | && opP->disp.exp.X_op == O_constant) | |
1480 | { | |
1481 | /* This is what the MRI REG pseudo-op generates. */ | |
1482 | opP->mode = REGLST; | |
1483 | opP->mask = opP->disp.exp.X_add_number; | |
1484 | } | |
a1c7c0f3 | 1485 | else if (opP->mode != REGLST) |
355afbcd | 1486 | losing++; |
a1c7c0f3 ILT |
1487 | else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0) |
1488 | losing++; | |
1489 | else if (s[1] == '3' && (opP->mask & 0x7000000) != 0) | |
355afbcd KR |
1490 | losing++; |
1491 | break; | |
1492 | ||
1493 | case 'M': | |
1494 | if (opP->mode != IMMED) | |
1495 | losing++; | |
336435bc ILT |
1496 | else if (opP->disp.exp.X_op != O_constant |
1497 | || ! issbyte (opP->disp.exp.X_add_number)) | |
a1c7c0f3 | 1498 | losing++; |
6700d36e ILT |
1499 | else if (! m68k_quick |
1500 | && instring[3] != 'q' | |
1501 | && instring[4] != 'q') | |
1502 | losing++; | |
355afbcd | 1503 | break; |
8be74775 | 1504 | |
355afbcd | 1505 | case 'O': |
8d20a0a8 C |
1506 | if (opP->mode != DREG |
1507 | && opP->mode != IMMED | |
1508 | && opP->mode != ABSL) | |
355afbcd KR |
1509 | losing++; |
1510 | break; | |
6d27d3a2 | 1511 | |
355afbcd KR |
1512 | case 'Q': |
1513 | if (opP->mode != IMMED) | |
1514 | losing++; | |
336435bc | 1515 | else if (opP->disp.exp.X_op != O_constant |
a1c7c0f3 ILT |
1516 | || opP->disp.exp.X_add_number < 1 |
1517 | || opP->disp.exp.X_add_number > 8) | |
1518 | losing++; | |
6700d36e ILT |
1519 | else if (! m68k_quick |
1520 | && (strncmp (instring, "add", 3) == 0 | |
1521 | || strncmp (instring, "sub", 3) == 0) | |
1522 | && instring[3] != 'q') | |
1523 | losing++; | |
355afbcd | 1524 | break; |
8be74775 | 1525 | |
355afbcd KR |
1526 | case 'R': |
1527 | if (opP->mode != DREG && opP->mode != AREG) | |
1528 | losing++; | |
1529 | break; | |
8be74775 | 1530 | |
355afbcd | 1531 | case 'r': |
a1c7c0f3 ILT |
1532 | if (opP->mode != AINDR |
1533 | && (opP->mode != BASE | |
1534 | || (opP->reg != 0 | |
1535 | && opP->reg != ZADDR0) | |
1536 | || opP->disp.exp.X_op != O_absent | |
1537 | || ((opP->index.reg < DATA0 | |
1538 | || opP->index.reg > DATA7) | |
1539 | && (opP->index.reg < ADDR0 | |
1540 | || opP->index.reg > ADDR7)) | |
1541 | || opP->index.size != SIZE_UNSPEC | |
1542 | || opP->index.scale != 1)) | |
355afbcd KR |
1543 | losing++; |
1544 | break; | |
c50140c8 | 1545 | |
355afbcd | 1546 | case 's': |
a1c7c0f3 ILT |
1547 | if (opP->mode != CONTROL |
1548 | || ! (opP->reg == FPI | |
1549 | || opP->reg == FPS | |
1550 | || opP->reg == FPC)) | |
355afbcd KR |
1551 | losing++; |
1552 | break; | |
8be74775 | 1553 | |
355afbcd | 1554 | case 'S': |
a1c7c0f3 | 1555 | if (opP->mode != CONTROL || opP->reg != SR) |
355afbcd KR |
1556 | losing++; |
1557 | break; | |
8be74775 | 1558 | |
355afbcd KR |
1559 | case 't': |
1560 | if (opP->mode != IMMED) | |
1561 | losing++; | |
336435bc | 1562 | else if (opP->disp.exp.X_op != O_constant |
a1c7c0f3 ILT |
1563 | || opP->disp.exp.X_add_number < 0 |
1564 | || opP->disp.exp.X_add_number > 7) | |
1565 | losing++; | |
355afbcd | 1566 | break; |
4134a793 | 1567 | |
355afbcd | 1568 | case 'U': |
a1c7c0f3 | 1569 | if (opP->mode != CONTROL || opP->reg != USP) |
355afbcd KR |
1570 | losing++; |
1571 | break; | |
8be74775 | 1572 | |
355afbcd | 1573 | /* JF these are out of order. We could put them |
1404ef23 KR |
1574 | in order if we were willing to put up with |
1575 | bunches of #ifdef m68851s in the code. | |
4134a793 | 1576 | |
1404ef23 KR |
1577 | Don't forget that you need these operands |
1578 | to use 68030 MMU instructions. */ | |
f8701a3f | 1579 | #ifndef NO_68851 |
355afbcd KR |
1580 | /* Memory addressing mode used by pflushr */ |
1581 | case '|': | |
a1c7c0f3 ILT |
1582 | if (opP->mode == CONTROL |
1583 | || opP->mode == FPREG | |
1584 | || opP->mode == DREG | |
1585 | || opP->mode == AREG | |
1586 | || opP->mode == REGLST) | |
355afbcd | 1587 | losing++; |
9adcd781 ILT |
1588 | /* We should accept immediate operands, but they |
1589 | supposedly have to be quad word, and we don't | |
1590 | handle that. I would like to see what a Motorola | |
1591 | assembler does before doing something here. */ | |
1592 | if (opP->mode == IMMED) | |
1593 | losing++; | |
355afbcd KR |
1594 | break; |
1595 | ||
1596 | case 'f': | |
a1c7c0f3 ILT |
1597 | if (opP->mode != CONTROL |
1598 | || (opP->reg != SFC && opP->reg != DFC)) | |
355afbcd KR |
1599 | losing++; |
1600 | break; | |
1601 | ||
9adcd781 ILT |
1602 | case '0': |
1603 | if (opP->mode != CONTROL || opP->reg != TC) | |
1604 | losing++; | |
1605 | break; | |
1606 | ||
1607 | case '1': | |
1608 | if (opP->mode != CONTROL || opP->reg != AC) | |
1609 | losing++; | |
1610 | break; | |
1611 | ||
1612 | case '2': | |
a1c7c0f3 | 1613 | if (opP->mode != CONTROL |
9adcd781 | 1614 | || (opP->reg != CAL |
a1c7c0f3 | 1615 | && opP->reg != VAL |
9adcd781 | 1616 | && opP->reg != SCC)) |
355afbcd KR |
1617 | losing++; |
1618 | break; | |
1619 | ||
1620 | case 'V': | |
a1c7c0f3 ILT |
1621 | if (opP->mode != CONTROL |
1622 | || opP->reg != VAL) | |
355afbcd KR |
1623 | losing++; |
1624 | break; | |
8be74775 | 1625 | |
355afbcd | 1626 | case 'W': |
a1c7c0f3 ILT |
1627 | if (opP->mode != CONTROL |
1628 | || (opP->reg != DRP | |
1629 | && opP->reg != SRP | |
355afbcd KR |
1630 | && opP->reg != CRP)) |
1631 | losing++; | |
1632 | break; | |
1633 | ||
1634 | case 'X': | |
a1c7c0f3 ILT |
1635 | if (opP->mode != CONTROL |
1636 | || (!(opP->reg >= BAD && opP->reg <= BAD + 7) | |
1637 | && !(opP->reg >= BAC && opP->reg <= BAC + 7))) | |
355afbcd KR |
1638 | losing++; |
1639 | break; | |
1640 | ||
1641 | case 'Y': | |
a1c7c0f3 | 1642 | if (opP->mode != CONTROL || opP->reg != PSR) |
355afbcd KR |
1643 | losing++; |
1644 | break; | |
1645 | ||
1646 | case 'Z': | |
a1c7c0f3 | 1647 | if (opP->mode != CONTROL || opP->reg != PCSR) |
355afbcd KR |
1648 | losing++; |
1649 | break; | |
f8701a3f | 1650 | #endif |
355afbcd | 1651 | case 'c': |
a1c7c0f3 ILT |
1652 | if (opP->mode != CONTROL |
1653 | || (opP->reg != NC | |
1654 | && opP->reg != IC | |
1655 | && opP->reg != DC | |
1656 | && opP->reg != BC)) | |
355afbcd KR |
1657 | { |
1658 | losing++; | |
1659 | } /* not a cache specifier. */ | |
1660 | break; | |
1661 | ||
1662 | case '_': | |
1663 | if (opP->mode != ABSL) | |
a1c7c0f3 | 1664 | ++losing; |
355afbcd | 1665 | break; |
8be74775 | 1666 | |
355afbcd | 1667 | default: |
a1c7c0f3 | 1668 | abort (); |
355afbcd | 1669 | } /* switch on type of operand */ |
6d27d3a2 | 1670 | |
355afbcd KR |
1671 | if (losing) |
1672 | break; | |
1673 | } /* for each operand */ | |
1674 | } /* if immediately wrong */ | |
6d27d3a2 | 1675 | |
355afbcd KR |
1676 | if (!losing) |
1677 | { | |
8be74775 | 1678 | break; |
355afbcd | 1679 | } /* got it. */ |
6d27d3a2 | 1680 | |
355afbcd | 1681 | opcode = opcode->m_next; |
6d27d3a2 | 1682 | |
355afbcd | 1683 | if (!opcode) |
8be74775 | 1684 | { |
355afbcd KR |
1685 | if (ok_arch |
1686 | && !(ok_arch & current_architecture)) | |
8be74775 | 1687 | { |
355afbcd | 1688 | char buf[200], *cp; |
091221ce | 1689 | |
a1c7c0f3 ILT |
1690 | strcpy (buf, |
1691 | "invalid instruction for this architecture; needs "); | |
355afbcd KR |
1692 | cp = buf + strlen (buf); |
1693 | switch (ok_arch) | |
1694 | { | |
1695 | case mfloat: | |
82489ea0 | 1696 | strcpy (cp, "fpu (68040, 68060 or 68881/68882)"); |
355afbcd KR |
1697 | break; |
1698 | case mmmu: | |
1699 | strcpy (cp, "mmu (68030 or 68851)"); | |
1700 | break; | |
1701 | case m68020up: | |
1702 | strcpy (cp, "68020 or higher"); | |
1703 | break; | |
1704 | case m68000up: | |
1705 | strcpy (cp, "68000 or higher"); | |
1706 | break; | |
1707 | case m68010up: | |
1708 | strcpy (cp, "68010 or higher"); | |
1709 | break; | |
1710 | default: | |
8be74775 | 1711 | { |
355afbcd | 1712 | int got_one = 0, idx; |
a1c7c0f3 ILT |
1713 | for (idx = 0; idx < sizeof (archs) / sizeof (archs[0]); |
1714 | idx++) | |
8be74775 | 1715 | { |
9e64486e ILT |
1716 | if ((archs[idx].arch & ok_arch) |
1717 | && ! archs[idx].alias) | |
8be74775 | 1718 | { |
355afbcd KR |
1719 | if (got_one) |
1720 | { | |
1721 | strcpy (cp, " or "); | |
1722 | cp += strlen (cp); | |
1723 | } | |
1724 | got_one = 1; | |
1725 | strcpy (cp, archs[idx].name); | |
8be74775 KR |
1726 | cp += strlen (cp); |
1727 | } | |
8be74775 KR |
1728 | } |
1729 | } | |
355afbcd | 1730 | } |
091221ce | 1731 | cp = xmalloc (strlen (buf) + 1); |
355afbcd KR |
1732 | strcpy (cp, buf); |
1733 | the_ins.error = cp; | |
8be74775 | 1734 | } |
355afbcd KR |
1735 | else |
1736 | the_ins.error = "operands mismatch"; | |
1737 | return; | |
1738 | } /* Fell off the end */ | |
6d27d3a2 | 1739 | |
355afbcd KR |
1740 | losing = 0; |
1741 | } | |
6d27d3a2 KR |
1742 | |
1743 | /* now assemble it */ | |
1744 | ||
355afbcd KR |
1745 | the_ins.args = opcode->m_operands; |
1746 | the_ins.numargs = opcode->m_opnum; | |
1747 | the_ins.numo = opcode->m_codenum; | |
1748 | the_ins.opcode[0] = getone (opcode); | |
1749 | the_ins.opcode[1] = gettwo (opcode); | |
6d27d3a2 | 1750 | |
355afbcd KR |
1751 | for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) |
1752 | { | |
1753 | /* This switch is a doozy. | |
6d27d3a2 | 1754 | Watch the first step; its a big one! */ |
355afbcd KR |
1755 | switch (s[0]) |
1756 | { | |
6d27d3a2 | 1757 | |
355afbcd KR |
1758 | case '*': |
1759 | case '~': | |
1760 | case '%': | |
1761 | case ';': | |
1762 | case '@': | |
1763 | case '!': | |
1764 | case '&': | |
1765 | case '$': | |
1766 | case '?': | |
1767 | case '/': | |
1768 | case '`': | |
b4d51f3d ILT |
1769 | case '<': |
1770 | case '>': | |
1771 | case 'm': | |
1772 | case 'n': | |
1773 | case 'o': | |
1774 | case 'p': | |
355afbcd KR |
1775 | #ifndef NO_68851 |
1776 | case '|': | |
1777 | #endif | |
1778 | switch (opP->mode) | |
1779 | { | |
1780 | case IMMED: | |
1781 | tmpreg = 0x3c; /* 7.4 */ | |
1782 | if (strchr ("bwl", s[1])) | |
a1c7c0f3 | 1783 | nextword = get_num (&opP->disp, 80); |
355afbcd | 1784 | else |
a1c7c0f3 ILT |
1785 | nextword = get_num (&opP->disp, 0); |
1786 | if (isvar (&opP->disp)) | |
1787 | add_fix (s[1], &opP->disp, 0, 0); | |
355afbcd KR |
1788 | switch (s[1]) |
1789 | { | |
1790 | case 'b': | |
1791 | if (!isbyte (nextword)) | |
1792 | opP->error = "operand out of range"; | |
1793 | addword (nextword); | |
1794 | baseo = 0; | |
1795 | break; | |
1796 | case 'w': | |
1797 | if (!isword (nextword)) | |
1798 | opP->error = "operand out of range"; | |
1799 | addword (nextword); | |
1800 | baseo = 0; | |
1801 | break; | |
9e64486e ILT |
1802 | case 'W': |
1803 | if (!issword (nextword)) | |
1804 | opP->error = "operand out of range"; | |
1805 | addword (nextword); | |
1806 | baseo = 0; | |
1807 | break; | |
355afbcd KR |
1808 | case 'l': |
1809 | addword (nextword >> 16); | |
1810 | addword (nextword); | |
1811 | baseo = 0; | |
1812 | break; | |
1813 | ||
1814 | case 'f': | |
1815 | baseo = 2; | |
1816 | outro = 8; | |
1817 | break; | |
1818 | case 'F': | |
1819 | baseo = 4; | |
1820 | outro = 11; | |
1821 | break; | |
1822 | case 'x': | |
1823 | baseo = 6; | |
1824 | outro = 15; | |
1825 | break; | |
1826 | case 'p': | |
1827 | baseo = 6; | |
1828 | outro = -1; | |
1829 | break; | |
1830 | default: | |
a1c7c0f3 | 1831 | abort (); |
355afbcd KR |
1832 | } |
1833 | if (!baseo) | |
1834 | break; | |
6d27d3a2 | 1835 | |
355afbcd | 1836 | /* We gotta put out some float */ |
a1c7c0f3 | 1837 | if (op (&opP->disp) != O_big) |
355afbcd | 1838 | { |
bcb8dff8 KR |
1839 | valueT val; |
1840 | int gencnt; | |
1841 | ||
1842 | /* Can other cases happen here? */ | |
a1c7c0f3 | 1843 | if (op (&opP->disp) != O_constant) |
bcb8dff8 | 1844 | abort (); |
82489ea0 | 1845 | |
a1c7c0f3 | 1846 | val = (valueT) offs (&opP->disp); |
bcb8dff8 KR |
1847 | gencnt = 0; |
1848 | do | |
1849 | { | |
1850 | generic_bignum[gencnt] = (LITTLENUM_TYPE) val; | |
1851 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
1852 | ++gencnt; | |
1853 | } | |
1854 | while (val != 0); | |
a1c7c0f3 | 1855 | offs (&opP->disp) = gencnt; |
355afbcd | 1856 | } |
a1c7c0f3 | 1857 | if (offs (&opP->disp) > 0) |
355afbcd | 1858 | { |
a1c7c0f3 | 1859 | if (offs (&opP->disp) > baseo) |
355afbcd | 1860 | { |
a1c7c0f3 ILT |
1861 | as_warn ("Bignum too big for %c format; truncated", |
1862 | s[1]); | |
1863 | offs (&opP->disp) = baseo; | |
355afbcd | 1864 | } |
a1c7c0f3 | 1865 | baseo -= offs (&opP->disp); |
355afbcd KR |
1866 | while (baseo--) |
1867 | addword (0); | |
a1c7c0f3 ILT |
1868 | for (wordp = generic_bignum + offs (&opP->disp) - 1; |
1869 | offs (&opP->disp)--; | |
1870 | --wordp) | |
bcb8dff8 | 1871 | addword (*wordp); |
355afbcd KR |
1872 | break; |
1873 | } | |
1874 | gen_to_words (words, baseo, (long) outro); | |
1875 | for (wordp = words; baseo--; wordp++) | |
1876 | addword (*wordp); | |
1877 | break; | |
1878 | case DREG: | |
1879 | tmpreg = opP->reg - DATA; /* 0.dreg */ | |
1880 | break; | |
1881 | case AREG: | |
1882 | tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */ | |
1883 | break; | |
1884 | case AINDR: | |
1885 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
1886 | break; | |
1887 | case ADEC: | |
1888 | tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */ | |
1889 | break; | |
1890 | case AINC: | |
1891 | tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */ | |
1892 | break; | |
a1c7c0f3 | 1893 | case DISP: |
6d27d3a2 | 1894 | |
a1c7c0f3 | 1895 | nextword = get_num (&opP->disp, 80); |
6700d36e ILT |
1896 | |
1897 | if (opP->reg == PC | |
1898 | && ! isvar (&opP->disp) | |
1899 | && m68k_abspcadd) | |
1900 | { | |
1901 | opP->disp.exp.X_op = O_symbol; | |
1902 | #ifndef BFD_ASSEMBLER | |
1903 | opP->disp.exp.X_add_symbol = &abs_symbol; | |
1904 | #else | |
1905 | opP->disp.exp.X_add_symbol = | |
1906 | section_symbol (absolute_section); | |
1907 | #endif | |
1908 | } | |
1909 | ||
355afbcd | 1910 | /* Force into index mode. Hope this works */ |
6d27d3a2 | 1911 | |
1404ef23 KR |
1912 | /* We do the first bit for 32-bit displacements, and the |
1913 | second bit for 16 bit ones. It is possible that we | |
1914 | should make the default be WORD instead of LONG, but | |
1915 | I think that'd break GCC, so we put up with a little | |
1916 | inefficiency for the sake of working output. */ | |
6d27d3a2 | 1917 | |
355afbcd | 1918 | if (!issword (nextword) |
a1c7c0f3 ILT |
1919 | || (isvar (&opP->disp) |
1920 | && ((opP->disp.size == SIZE_UNSPEC | |
b79de3a1 KR |
1921 | && flag_short_refs == 0 |
1922 | && cpu_of_arch (current_architecture) >= m68020) | |
a1c7c0f3 | 1923 | || opP->disp.size == SIZE_LONG))) |
355afbcd | 1924 | { |
912e4245 ILT |
1925 | if (cpu_of_arch (current_architecture) < m68020) |
1926 | opP->error = | |
1927 | "displacement too large for this architecture; needs 68020 or higher"; | |
355afbcd KR |
1928 | if (opP->reg == PC) |
1929 | tmpreg = 0x3B; /* 7.3 */ | |
1930 | else | |
1931 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
a1c7c0f3 | 1932 | if (isvar (&opP->disp)) |
355afbcd KR |
1933 | { |
1934 | if (opP->reg == PC) | |
1935 | { | |
a043f579 ILT |
1936 | if (opP->disp.size == SIZE_LONG |
1937 | #ifdef OBJ_ELF | |
1938 | /* If the displacement needs pic | |
1939 | relocation it cannot be relaxed. */ | |
1940 | || opP->disp.pic_reloc != pic_none | |
04ef74bb | 1941 | #endif |
a043f579 ILT |
1942 | ) |
1943 | { | |
1944 | addword (0x0170); | |
1945 | add_fix ('l', &opP->disp, 1, 2); | |
1946 | } | |
1947 | else | |
1948 | { | |
1949 | add_frag (adds (&opP->disp), | |
1950 | offs (&opP->disp), | |
1951 | TAB (PCLEA, SZ_UNDEF)); | |
1952 | break; | |
1953 | } | |
355afbcd KR |
1954 | } |
1955 | else | |
1956 | { | |
1957 | addword (0x0170); | |
a1c7c0f3 | 1958 | add_fix ('l', &opP->disp, 0, 0); |
355afbcd KR |
1959 | } |
1960 | } | |
1961 | else | |
1962 | addword (0x0170); | |
1963 | addword (nextword >> 16); | |
1964 | } | |
1965 | else | |
1966 | { | |
1967 | if (opP->reg == PC) | |
1968 | tmpreg = 0x3A; /* 7.2 */ | |
1969 | else | |
1970 | tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */ | |
1971 | ||
a1c7c0f3 | 1972 | if (isvar (&opP->disp)) |
355afbcd KR |
1973 | { |
1974 | if (opP->reg == PC) | |
1975 | { | |
a1c7c0f3 | 1976 | add_fix ('w', &opP->disp, 1, 0); |
355afbcd KR |
1977 | } |
1978 | else | |
a1c7c0f3 | 1979 | add_fix ('w', &opP->disp, 0, 0); |
355afbcd KR |
1980 | } |
1981 | } | |
1982 | addword (nextword); | |
6d27d3a2 | 1983 | break; |
6d27d3a2 | 1984 | |
a1c7c0f3 ILT |
1985 | case POST: |
1986 | case PRE: | |
1987 | case BASE: | |
355afbcd | 1988 | nextword = 0; |
a1c7c0f3 ILT |
1989 | baseo = get_num (&opP->disp, 80); |
1990 | if (opP->mode == POST || opP->mode == PRE) | |
1991 | outro = get_num (&opP->odisp, 80); | |
49864cfa KR |
1992 | /* Figure out the `addressing mode'. |
1993 | Also turn on the BASE_DISABLE bit, if needed. */ | |
355afbcd KR |
1994 | if (opP->reg == PC || opP->reg == ZPC) |
1995 | { | |
a1c7c0f3 | 1996 | tmpreg = 0x3b; /* 7.3 */ |
355afbcd KR |
1997 | if (opP->reg == ZPC) |
1998 | nextword |= 0x80; | |
1999 | } | |
a1c7c0f3 ILT |
2000 | else if (opP->reg == 0) |
2001 | { | |
2002 | nextword |= 0x80; | |
2003 | tmpreg = 0x30; /* 6.garbage */ | |
2004 | } | |
2005 | else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7) | |
355afbcd KR |
2006 | { |
2007 | nextword |= 0x80; | |
a1c7c0f3 | 2008 | tmpreg = 0x30 + opP->reg - ZADDR0; |
355afbcd KR |
2009 | } |
2010 | else | |
2011 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2012 | ||
a1c7c0f3 ILT |
2013 | siz1 = opP->disp.size; |
2014 | if (opP->mode == POST || opP->mode == PRE) | |
2015 | siz2 = opP->odisp.size; | |
2016 | else | |
2017 | siz2 = SIZE_UNSPEC; | |
355afbcd KR |
2018 | |
2019 | /* Index register stuff */ | |
a1c7c0f3 ILT |
2020 | if (opP->index.reg != 0 |
2021 | && opP->index.reg >= DATA | |
2022 | && opP->index.reg <= ADDR7) | |
355afbcd | 2023 | { |
a1c7c0f3 | 2024 | nextword |= (opP->index.reg - DATA) << 12; |
355afbcd | 2025 | |
b4d51f3d ILT |
2026 | if (opP->index.size == SIZE_LONG |
2027 | || (opP->index.size == SIZE_UNSPEC | |
2028 | && m68k_index_width_default == SIZE_LONG)) | |
355afbcd | 2029 | nextword |= 0x800; |
a1c7c0f3 | 2030 | |
8d20a0a8 C |
2031 | if ((opP->index.scale != 1 |
2032 | && cpu_of_arch (current_architecture) < m68020) | |
2033 | || (opP->index.scale == 8 | |
2034 | && current_architecture == mcf5200)) | |
a1c7c0f3 | 2035 | { |
8d20a0a8 C |
2036 | opP->error = |
2037 | "scale factor invalid on this architecture; needs cpu32 or 68020 or higher"; | |
a1c7c0f3 ILT |
2038 | } |
2039 | ||
2040 | switch (opP->index.scale) | |
355afbcd KR |
2041 | { |
2042 | case 1: | |
2043 | break; | |
2044 | case 2: | |
2045 | nextword |= 0x200; | |
2046 | break; | |
2047 | case 4: | |
2048 | nextword |= 0x400; | |
2049 | break; | |
2050 | case 8: | |
2051 | nextword |= 0x600; | |
2052 | break; | |
2053 | default: | |
a1c7c0f3 | 2054 | abort (); |
355afbcd KR |
2055 | } |
2056 | /* IF its simple, | |
49864cfa | 2057 | GET US OUT OF HERE! */ |
6d27d3a2 | 2058 | |
04ef74bb KR |
2059 | /* Must be INDEX, with an index register. Address |
2060 | register cannot be ZERO-PC, and either :b was | |
2061 | forced, or we know it will fit. For a 68000 or | |
2062 | 68010, force this mode anyways, because the | |
2063 | larger modes aren't supported. */ | |
a1c7c0f3 ILT |
2064 | if (opP->mode == BASE |
2065 | && ((opP->reg >= ADDR0 | |
2066 | && opP->reg <= ADDR7) | |
2067 | || opP->reg == PC)) | |
355afbcd | 2068 | { |
a1c7c0f3 ILT |
2069 | if (siz1 == SIZE_BYTE |
2070 | || cpu_of_arch (current_architecture) < m68020 | |
2071 | || (siz1 == SIZE_UNSPEC | |
2072 | && ! isvar (&opP->disp) | |
2073 | && issbyte (baseo))) | |
2074 | { | |
5f8cb05e ILT |
2075 | nextword += baseo & 0xff; |
2076 | addword (nextword); | |
a1c7c0f3 | 2077 | if (isvar (&opP->disp)) |
04ef74bb | 2078 | { |
a1c7c0f3 ILT |
2079 | /* Do a byte relocation. If it doesn't |
2080 | fit (possible on m68000) let the | |
2081 | fixup processing complain later. */ | |
5f8cb05e | 2082 | if (opP->reg == PC) |
a1c7c0f3 | 2083 | add_fix ('B', &opP->disp, 1, 1); |
5f8cb05e | 2084 | else |
a1c7c0f3 | 2085 | add_fix ('B', &opP->disp, 0, 0); |
04ef74bb | 2086 | } |
a1c7c0f3 ILT |
2087 | else if (siz1 != SIZE_BYTE) |
2088 | { | |
2089 | if (siz1 != SIZE_UNSPEC) | |
2090 | as_warn ("Forcing byte displacement"); | |
2091 | if (! issbyte (baseo)) | |
2092 | opP->error = "byte displacement out of range"; | |
2093 | } | |
2094 | ||
2095 | break; | |
2096 | } | |
2097 | else if (siz1 == SIZE_UNSPEC | |
2098 | && opP->reg == PC | |
2099 | && isvar (&opP->disp) | |
a043f579 ILT |
2100 | && subs (&opP->disp) == NULL |
2101 | #ifdef OBJ_ELF | |
2102 | /* If the displacement needs pic | |
2103 | relocation it cannot be relaxed. */ | |
2104 | && opP->disp.pic_reloc == pic_none | |
2105 | #endif | |
2106 | ) | |
a1c7c0f3 | 2107 | { |
2156d0d7 ILT |
2108 | /* The code in md_convert_frag_1 needs to be |
2109 | able to adjust nextword. Call frag_grow | |
2110 | to ensure that we have enough space in | |
2111 | the frag obstack to make all the bytes | |
2112 | contiguous. */ | |
2113 | frag_grow (14); | |
5f8cb05e ILT |
2114 | nextword += baseo & 0xff; |
2115 | addword (nextword); | |
a1c7c0f3 | 2116 | add_frag (adds (&opP->disp), offs (&opP->disp), |
5f8cb05e | 2117 | TAB (PCINDEX, SZ_UNDEF)); |
a1c7c0f3 ILT |
2118 | |
2119 | break; | |
5f8cb05e | 2120 | } |
355afbcd KR |
2121 | } |
2122 | } | |
2123 | else | |
a1c7c0f3 ILT |
2124 | { |
2125 | nextword |= 0x40; /* No index reg */ | |
2126 | if (opP->index.reg >= ZDATA0 | |
2127 | && opP->index.reg <= ZDATA7) | |
2128 | nextword |= (opP->index.reg - ZDATA0) << 12; | |
2129 | else if (opP->index.reg >= ZADDR0 | |
2130 | || opP->index.reg <= ZADDR7) | |
2131 | nextword |= (opP->index.reg - ZADDR0 + 8) << 12; | |
2132 | } | |
6d27d3a2 | 2133 | |
49864cfa | 2134 | /* It isn't simple. */ |
a1c7c0f3 ILT |
2135 | |
2136 | if (cpu_of_arch (current_architecture) < m68020) | |
2137 | opP->error = | |
2138 | "invalid operand mode for this architecture; needs 68020 or higher"; | |
2139 | ||
355afbcd | 2140 | nextword |= 0x100; |
49864cfa KR |
2141 | /* If the guy specified a width, we assume that it is |
2142 | wide enough. Maybe it isn't. If so, we lose. */ | |
355afbcd KR |
2143 | switch (siz1) |
2144 | { | |
a1c7c0f3 | 2145 | case SIZE_UNSPEC: |
6700d36e ILT |
2146 | if (isvar (&opP->disp) |
2147 | ? m68k_rel32 | |
2148 | : ! issword (baseo)) | |
355afbcd | 2149 | { |
a1c7c0f3 | 2150 | siz1 = SIZE_LONG; |
355afbcd KR |
2151 | nextword |= 0x30; |
2152 | } | |
6700d36e | 2153 | else if (! isvar (&opP->disp) && baseo == 0) |
355afbcd KR |
2154 | nextword |= 0x10; |
2155 | else | |
2156 | { | |
2157 | nextword |= 0x20; | |
a1c7c0f3 | 2158 | siz1 = SIZE_WORD; |
355afbcd KR |
2159 | } |
2160 | break; | |
a1c7c0f3 ILT |
2161 | case SIZE_BYTE: |
2162 | as_warn (":b not permitted; defaulting to :w"); | |
2163 | /* Fall through. */ | |
2164 | case SIZE_WORD: | |
355afbcd KR |
2165 | nextword |= 0x20; |
2166 | break; | |
a1c7c0f3 | 2167 | case SIZE_LONG: |
355afbcd KR |
2168 | nextword |= 0x30; |
2169 | break; | |
2170 | } | |
6d27d3a2 | 2171 | |
355afbcd | 2172 | /* Figure out innner displacement stuff */ |
a1c7c0f3 | 2173 | if (opP->mode == POST || opP->mode == PRE) |
355afbcd | 2174 | { |
8d20a0a8 C |
2175 | if (cpu_of_arch (current_architecture) & cpu32) |
2176 | opP->error = "invalid operand mode for this architecture; needs 68020 or higher"; | |
355afbcd KR |
2177 | switch (siz2) |
2178 | { | |
a1c7c0f3 | 2179 | case SIZE_UNSPEC: |
6700d36e ILT |
2180 | if (isvar (&opP->odisp) |
2181 | ? m68k_rel32 | |
2182 | : ! issword (outro)) | |
355afbcd | 2183 | { |
a1c7c0f3 | 2184 | siz2 = SIZE_LONG; |
355afbcd KR |
2185 | nextword |= 0x3; |
2186 | } | |
92a25e12 | 2187 | else if (! isvar (&opP->odisp) && outro == 0) |
355afbcd KR |
2188 | nextword |= 0x1; |
2189 | else | |
2190 | { | |
2191 | nextword |= 0x2; | |
a1c7c0f3 | 2192 | siz2 = SIZE_WORD; |
355afbcd KR |
2193 | } |
2194 | break; | |
2195 | case 1: | |
a1c7c0f3 ILT |
2196 | as_warn (":b not permitted; defaulting to :w"); |
2197 | /* Fall through. */ | |
355afbcd KR |
2198 | case 2: |
2199 | nextword |= 0x2; | |
2200 | break; | |
2201 | case 3: | |
2202 | nextword |= 0x3; | |
2203 | break; | |
2204 | } | |
92a25e12 ILT |
2205 | if (opP->mode == POST |
2206 | && (nextword & 0x40) == 0) | |
355afbcd | 2207 | nextword |= 0x04; |
355afbcd KR |
2208 | } |
2209 | addword (nextword); | |
2210 | ||
a1c7c0f3 | 2211 | if (siz1 != SIZE_UNSPEC && isvar (&opP->disp)) |
355afbcd KR |
2212 | { |
2213 | if (opP->reg == PC || opP->reg == ZPC) | |
a1c7c0f3 | 2214 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2); |
355afbcd | 2215 | else |
a1c7c0f3 | 2216 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0); |
355afbcd | 2217 | } |
a1c7c0f3 | 2218 | if (siz1 == SIZE_LONG) |
355afbcd | 2219 | addword (baseo >> 16); |
a1c7c0f3 | 2220 | if (siz1 != SIZE_UNSPEC) |
355afbcd KR |
2221 | addword (baseo); |
2222 | ||
a1c7c0f3 ILT |
2223 | if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp)) |
2224 | add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0); | |
2225 | if (siz2 == SIZE_LONG) | |
355afbcd | 2226 | addword (outro >> 16); |
a1c7c0f3 | 2227 | if (siz2 != SIZE_UNSPEC) |
355afbcd | 2228 | addword (outro); |
6d27d3a2 | 2229 | |
355afbcd | 2230 | break; |
6d27d3a2 | 2231 | |
355afbcd | 2232 | case ABSL: |
a1c7c0f3 ILT |
2233 | nextword = get_num (&opP->disp, 80); |
2234 | switch (opP->disp.size) | |
355afbcd KR |
2235 | { |
2236 | default: | |
a1c7c0f3 ILT |
2237 | abort (); |
2238 | case SIZE_UNSPEC: | |
2239 | if (!isvar (&opP->disp) && issword (offs (&opP->disp))) | |
355afbcd KR |
2240 | { |
2241 | tmpreg = 0x38; /* 7.0 */ | |
2242 | addword (nextword); | |
2243 | break; | |
2244 | } | |
bcb8dff8 KR |
2245 | /* Don't generate pc relative code on 68010 and |
2246 | 68000. */ | |
a1c7c0f3 ILT |
2247 | if (isvar (&opP->disp) |
2248 | && !subs (&opP->disp) | |
2249 | && adds (&opP->disp) | |
a043f579 ILT |
2250 | #ifdef OBJ_ELF |
2251 | /* If the displacement needs pic relocation it | |
2252 | cannot be relaxed. */ | |
2253 | && opP->disp.pic_reloc == pic_none | |
2254 | #endif | |
f00f5ecd | 2255 | && S_GET_SEGMENT (adds (&opP->disp)) == now_seg |
ffecfc8b | 2256 | && HAVE_LONG_BRANCH(current_architecture) |
9ad5755f | 2257 | && !flag_long_jumps |
355afbcd KR |
2258 | && !strchr ("~%&$?", s[0])) |
2259 | { | |
2260 | tmpreg = 0x3A; /* 7.2 */ | |
a1c7c0f3 ILT |
2261 | add_frag (adds (&opP->disp), |
2262 | offs (&opP->disp), | |
355afbcd KR |
2263 | TAB (PCREL, SZ_UNDEF)); |
2264 | break; | |
2265 | } | |
04ef74bb | 2266 | /* Fall through into long */ |
a1c7c0f3 ILT |
2267 | case SIZE_LONG: |
2268 | if (isvar (&opP->disp)) | |
2269 | add_fix ('l', &opP->disp, 0, 0); | |
355afbcd KR |
2270 | |
2271 | tmpreg = 0x39;/* 7.1 mode */ | |
2272 | addword (nextword >> 16); | |
2273 | addword (nextword); | |
2274 | break; | |
2275 | ||
a1c7c0f3 ILT |
2276 | case SIZE_WORD: /* Word */ |
2277 | if (isvar (&opP->disp)) | |
2278 | add_fix ('w', &opP->disp, 0, 0); | |
355afbcd KR |
2279 | |
2280 | tmpreg = 0x38;/* 7.0 mode */ | |
2281 | addword (nextword); | |
2282 | break; | |
2283 | } | |
2284 | break; | |
a1c7c0f3 ILT |
2285 | case CONTROL: |
2286 | case FPREG: | |
355afbcd KR |
2287 | default: |
2288 | as_bad ("unknown/incorrect operand"); | |
2289 | /* abort(); */ | |
2290 | } | |
2291 | install_gen_operand (s[1], tmpreg); | |
6d27d3a2 | 2292 | break; |
6d27d3a2 | 2293 | |
355afbcd KR |
2294 | case '#': |
2295 | case '^': | |
2296 | switch (s[1]) | |
2297 | { /* JF: I hate floating point! */ | |
2298 | case 'j': | |
2299 | tmpreg = 70; | |
2300 | break; | |
2301 | case '8': | |
2302 | tmpreg = 20; | |
2303 | break; | |
2304 | case 'C': | |
2305 | tmpreg = 50; | |
2306 | break; | |
2307 | case '3': | |
2308 | default: | |
2309 | tmpreg = 80; | |
2310 | break; | |
2311 | } | |
a1c7c0f3 ILT |
2312 | tmpreg = get_num (&opP->disp, tmpreg); |
2313 | if (isvar (&opP->disp)) | |
2314 | add_fix (s[1], &opP->disp, 0, 0); | |
355afbcd KR |
2315 | switch (s[1]) |
2316 | { | |
2317 | case 'b': /* Danger: These do no check for | |
6d27d3a2 KR |
2318 | certain types of overflow. |
2319 | user beware! */ | |
355afbcd KR |
2320 | if (!isbyte (tmpreg)) |
2321 | opP->error = "out of range"; | |
bcb8dff8 | 2322 | insop (tmpreg, opcode); |
a1c7c0f3 | 2323 | if (isvar (&opP->disp)) |
d9396c16 ILT |
2324 | the_ins.reloc[the_ins.nrel - 1].n = |
2325 | (opcode->m_codenum) * 2 + 1; | |
355afbcd | 2326 | break; |
a78bc551 ILT |
2327 | case 'B': |
2328 | if (!issbyte (tmpreg)) | |
2329 | opP->error = "out of range"; | |
2330 | opcode->m_opcode |= tmpreg; | |
2331 | if (isvar (&opP->disp)) | |
2332 | the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1; | |
2333 | break; | |
355afbcd KR |
2334 | case 'w': |
2335 | if (!isword (tmpreg)) | |
2336 | opP->error = "out of range"; | |
bcb8dff8 | 2337 | insop (tmpreg, opcode); |
a1c7c0f3 | 2338 | if (isvar (&opP->disp)) |
355afbcd KR |
2339 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; |
2340 | break; | |
9e64486e ILT |
2341 | case 'W': |
2342 | if (!issword (tmpreg)) | |
2343 | opP->error = "out of range"; | |
2344 | insop (tmpreg, opcode); | |
2345 | if (isvar (&opP->disp)) | |
2346 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2347 | break; | |
355afbcd | 2348 | case 'l': |
bcb8dff8 KR |
2349 | /* Because of the way insop works, we put these two out |
2350 | backwards. */ | |
2351 | insop (tmpreg, opcode); | |
2352 | insop (tmpreg >> 16, opcode); | |
a1c7c0f3 | 2353 | if (isvar (&opP->disp)) |
355afbcd KR |
2354 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; |
2355 | break; | |
2356 | case '3': | |
2357 | tmpreg &= 0xFF; | |
2358 | case '8': | |
2359 | case 'C': | |
2360 | install_operand (s[1], tmpreg); | |
2361 | break; | |
2362 | default: | |
a1c7c0f3 | 2363 | abort (); |
355afbcd KR |
2364 | } |
2365 | break; | |
6d27d3a2 | 2366 | |
355afbcd KR |
2367 | case '+': |
2368 | case '-': | |
2369 | case 'A': | |
2370 | case 'a': | |
2371 | install_operand (s[1], opP->reg - ADDR); | |
2372 | break; | |
6d27d3a2 | 2373 | |
355afbcd | 2374 | case 'B': |
a1c7c0f3 | 2375 | tmpreg = get_num (&opP->disp, 80); |
355afbcd KR |
2376 | switch (s[1]) |
2377 | { | |
2378 | case 'B': | |
b4ec75e0 ILT |
2379 | /* The pc_fix argument winds up in fx_pcrel_adjust, |
2380 | which is a char, and may therefore be unsigned. We | |
2381 | want to pass -1, but we pass 64 instead, and convert | |
2382 | back in md_pcrel_from. */ | |
2383 | add_fix ('B', &opP->disp, 1, 64); | |
355afbcd KR |
2384 | break; |
2385 | case 'W': | |
a1c7c0f3 | 2386 | add_fix ('w', &opP->disp, 1, 0); |
355afbcd KR |
2387 | addword (0); |
2388 | break; | |
2389 | case 'L': | |
2390 | long_branch: | |
ffecfc8b C |
2391 | if (!HAVE_LONG_BRANCH(current_architecture)) |
2392 | as_warn ("Can't use long branches on 68000/68010/5200"); | |
355afbcd | 2393 | the_ins.opcode[the_ins.numo - 1] |= 0xff; |
a1c7c0f3 | 2394 | add_fix ('l', &opP->disp, 1, 0); |
355afbcd KR |
2395 | addword (0); |
2396 | addword (0); | |
2397 | break; | |
2398 | case 'g': | |
a1c7c0f3 | 2399 | if (subs (&opP->disp)) /* We can't relax it */ |
355afbcd | 2400 | goto long_branch; |
6d27d3a2 | 2401 | |
a043f579 ILT |
2402 | #ifdef OBJ_ELF |
2403 | /* If the displacement needs pic relocation it cannot be | |
2404 | relaxed. */ | |
2405 | if (opP->disp.pic_reloc != pic_none) | |
2406 | goto long_branch; | |
2407 | #endif | |
2408 | ||
a1c7c0f3 ILT |
2409 | /* This could either be a symbol, or an absolute |
2410 | address. No matter, the frag hacking will finger it | |
2411 | out. Not quite: it can't switch from BRANCH to | |
2412 | BCC68000 for the case where opnd is absolute (it | |
2413 | needs to use the 68000 hack since no conditional abs | |
2414 | jumps). */ | |
ffecfc8b | 2415 | if (( !HAVE_LONG_BRANCH(current_architecture) |
a1c7c0f3 | 2416 | || (0 == adds (&opP->disp))) |
355afbcd KR |
2417 | && (the_ins.opcode[0] >= 0x6200) |
2418 | && (the_ins.opcode[0] <= 0x6f00)) | |
a1c7c0f3 ILT |
2419 | add_frag (adds (&opP->disp), offs (&opP->disp), |
2420 | TAB (BCC68000, SZ_UNDEF)); | |
355afbcd | 2421 | else |
a1c7c0f3 ILT |
2422 | add_frag (adds (&opP->disp), offs (&opP->disp), |
2423 | TAB (ABRANCH, SZ_UNDEF)); | |
355afbcd KR |
2424 | break; |
2425 | case 'w': | |
a1c7c0f3 | 2426 | if (isvar (&opP->disp)) |
355afbcd | 2427 | { |
49864cfa | 2428 | #if 1 |
355afbcd KR |
2429 | /* check for DBcc instruction */ |
2430 | if ((the_ins.opcode[0] & 0xf0f8) == 0x50c8) | |
2431 | { | |
2432 | /* size varies if patch */ | |
2433 | /* needed for long form */ | |
a1c7c0f3 | 2434 | add_frag (adds (&opP->disp), offs (&opP->disp), |
b79de3a1 | 2435 | TAB (DBCC, SZ_UNDEF)); |
355afbcd KR |
2436 | break; |
2437 | } | |
49864cfa | 2438 | #endif |
a1c7c0f3 | 2439 | add_fix ('w', &opP->disp, 1, 0); |
355afbcd KR |
2440 | } |
2441 | addword (0); | |
2442 | break; | |
2443 | case 'C': /* Fixed size LONG coproc branches */ | |
a1c7c0f3 | 2444 | add_fix ('l', &opP->disp, 1, 0); |
355afbcd KR |
2445 | addword (0); |
2446 | addword (0); | |
2447 | break; | |
2448 | case 'c': /* Var size Coprocesssor branches */ | |
a1c7c0f3 | 2449 | if (subs (&opP->disp)) |
355afbcd | 2450 | { |
a1c7c0f3 | 2451 | add_fix ('l', &opP->disp, 1, 0); |
355afbcd KR |
2452 | add_frag ((symbolS *) 0, (long) 0, TAB (FBRANCH, LONG)); |
2453 | } | |
a1c7c0f3 ILT |
2454 | else if (adds (&opP->disp)) |
2455 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2456 | TAB (FBRANCH, SZ_UNDEF)); | |
355afbcd KR |
2457 | else |
2458 | { | |
a1c7c0f3 ILT |
2459 | /* add_frag((symbolS *) 0, offs(&opP->disp), |
2460 | TAB(FBRANCH,SHORT)); */ | |
355afbcd | 2461 | the_ins.opcode[the_ins.numo - 1] |= 0x40; |
a1c7c0f3 | 2462 | add_fix ('l', &opP->disp, 1, 0); |
5f8cb05e | 2463 | addword (0); |
355afbcd | 2464 | addword (0); |
355afbcd KR |
2465 | } |
2466 | break; | |
2467 | default: | |
a1c7c0f3 | 2468 | abort (); |
355afbcd KR |
2469 | } |
2470 | break; | |
6d27d3a2 | 2471 | |
355afbcd KR |
2472 | case 'C': /* Ignore it */ |
2473 | break; | |
6d27d3a2 | 2474 | |
355afbcd | 2475 | case 'd': /* JF this is a kludge */ |
a1c7c0f3 ILT |
2476 | install_operand ('s', opP->reg - ADDR); |
2477 | tmpreg = get_num (&opP->disp, 80); | |
355afbcd KR |
2478 | if (!issword (tmpreg)) |
2479 | { | |
2480 | as_warn ("Expression out of range, using 0"); | |
2481 | tmpreg = 0; | |
2482 | } | |
2483 | addword (tmpreg); | |
2484 | break; | |
6d27d3a2 | 2485 | |
355afbcd KR |
2486 | case 'D': |
2487 | install_operand (s[1], opP->reg - DATA); | |
2488 | break; | |
6d27d3a2 | 2489 | |
355afbcd | 2490 | case 'F': |
a1c7c0f3 | 2491 | install_operand (s[1], opP->reg - FP0); |
355afbcd | 2492 | break; |
6d27d3a2 | 2493 | |
355afbcd | 2494 | case 'I': |
27a53b88 | 2495 | tmpreg = opP->reg - COP0; |
355afbcd KR |
2496 | install_operand (s[1], tmpreg); |
2497 | break; | |
6d27d3a2 | 2498 | |
355afbcd KR |
2499 | case 'J': /* JF foo */ |
2500 | switch (opP->reg) | |
2501 | { | |
2502 | case SFC: | |
2503 | tmpreg = 0x000; | |
2504 | break; | |
2505 | case DFC: | |
2506 | tmpreg = 0x001; | |
2507 | break; | |
2508 | case CACR: | |
2509 | tmpreg = 0x002; | |
2510 | break; | |
2511 | case TC: | |
2512 | tmpreg = 0x003; | |
2513 | break; | |
2514 | case ITT0: | |
2515 | tmpreg = 0x004; | |
2516 | break; | |
2517 | case ITT1: | |
2518 | tmpreg = 0x005; | |
2519 | break; | |
2520 | case DTT0: | |
2521 | tmpreg = 0x006; | |
2522 | break; | |
2523 | case DTT1: | |
2524 | tmpreg = 0x007; | |
2525 | break; | |
9ad5755f KR |
2526 | case BUSCR: |
2527 | tmpreg = 0x008; | |
2528 | break; | |
6d27d3a2 | 2529 | |
355afbcd KR |
2530 | case USP: |
2531 | tmpreg = 0x800; | |
2532 | break; | |
2533 | case VBR: | |
2534 | tmpreg = 0x801; | |
2535 | break; | |
2536 | case CAAR: | |
2537 | tmpreg = 0x802; | |
2538 | break; | |
2539 | case MSP: | |
2540 | tmpreg = 0x803; | |
2541 | break; | |
2542 | case ISP: | |
2543 | tmpreg = 0x804; | |
2544 | break; | |
2545 | case MMUSR: | |
2546 | tmpreg = 0x805; | |
2547 | break; | |
2548 | case URP: | |
2549 | tmpreg = 0x806; | |
2550 | break; | |
2551 | case SRP: | |
2552 | tmpreg = 0x807; | |
2553 | break; | |
9ad5755f KR |
2554 | case PCR: |
2555 | tmpreg = 0x808; | |
2556 | break; | |
8d20a0a8 C |
2557 | case ROMBAR: |
2558 | tmpreg = 0xC00; | |
2559 | break; | |
2560 | case RAMBAR0: | |
2561 | tmpreg = 0xC04; | |
2562 | break; | |
2563 | case RAMBAR1: | |
2564 | tmpreg = 0xC05; | |
2565 | break; | |
2566 | case MBAR: | |
2567 | tmpreg = 0xC0F; | |
2568 | break; | |
355afbcd | 2569 | default: |
a1c7c0f3 | 2570 | abort (); |
355afbcd KR |
2571 | } |
2572 | install_operand (s[1], tmpreg); | |
2573 | break; | |
6d27d3a2 | 2574 | |
355afbcd | 2575 | case 'k': |
a1c7c0f3 | 2576 | tmpreg = get_num (&opP->disp, 55); |
355afbcd KR |
2577 | install_operand (s[1], tmpreg & 0x7f); |
2578 | break; | |
6d27d3a2 | 2579 | |
355afbcd | 2580 | case 'l': |
a1c7c0f3 | 2581 | tmpreg = opP->mask; |
355afbcd KR |
2582 | if (s[1] == 'w') |
2583 | { | |
2584 | if (tmpreg & 0x7FF0000) | |
2585 | as_bad ("Floating point register in register list"); | |
bcb8dff8 | 2586 | insop (reverse_16_bits (tmpreg), opcode); |
355afbcd KR |
2587 | } |
2588 | else | |
2589 | { | |
2590 | if (tmpreg & 0x700FFFF) | |
2591 | as_bad ("Wrong register in floating-point reglist"); | |
2592 | install_operand (s[1], reverse_8_bits (tmpreg >> 16)); | |
2593 | } | |
2594 | break; | |
6d27d3a2 | 2595 | |
355afbcd | 2596 | case 'L': |
a1c7c0f3 | 2597 | tmpreg = opP->mask; |
355afbcd KR |
2598 | if (s[1] == 'w') |
2599 | { | |
2600 | if (tmpreg & 0x7FF0000) | |
2601 | as_bad ("Floating point register in register list"); | |
bcb8dff8 | 2602 | insop (tmpreg, opcode); |
355afbcd KR |
2603 | } |
2604 | else if (s[1] == '8') | |
2605 | { | |
2606 | if (tmpreg & 0x0FFFFFF) | |
2607 | as_bad ("incorrect register in reglist"); | |
2608 | install_operand (s[1], tmpreg >> 24); | |
2609 | } | |
2610 | else | |
2611 | { | |
2612 | if (tmpreg & 0x700FFFF) | |
2613 | as_bad ("wrong register in floating-point reglist"); | |
2614 | else | |
2615 | install_operand (s[1], tmpreg >> 16); | |
2616 | } | |
2617 | break; | |
6d27d3a2 | 2618 | |
355afbcd | 2619 | case 'M': |
a1c7c0f3 | 2620 | install_operand (s[1], get_num (&opP->disp, 60)); |
355afbcd | 2621 | break; |
6d27d3a2 | 2622 | |
355afbcd | 2623 | case 'O': |
a1c7c0f3 ILT |
2624 | tmpreg = ((opP->mode == DREG) |
2625 | ? 0x20 + opP->reg - DATA | |
2626 | : (get_num (&opP->disp, 40) & 0x1F)); | |
355afbcd KR |
2627 | install_operand (s[1], tmpreg); |
2628 | break; | |
6d27d3a2 | 2629 | |
355afbcd | 2630 | case 'Q': |
a1c7c0f3 | 2631 | tmpreg = get_num (&opP->disp, 10); |
355afbcd KR |
2632 | if (tmpreg == 8) |
2633 | tmpreg = 0; | |
2634 | install_operand (s[1], tmpreg); | |
2635 | break; | |
2636 | ||
2637 | case 'R': | |
a1c7c0f3 ILT |
2638 | /* This depends on the fact that ADDR registers are eight |
2639 | more than their corresponding DATA regs, so the result | |
2640 | will have the ADDR_REG bit set */ | |
355afbcd KR |
2641 | install_operand (s[1], opP->reg - DATA); |
2642 | break; | |
6d27d3a2 | 2643 | |
a1c7c0f3 ILT |
2644 | case 'r': |
2645 | if (opP->mode == AINDR) | |
2646 | install_operand (s[1], opP->reg - DATA); | |
2647 | else | |
2648 | install_operand (s[1], opP->index.reg - DATA); | |
2649 | break; | |
2650 | ||
355afbcd KR |
2651 | case 's': |
2652 | if (opP->reg == FPI) | |
2653 | tmpreg = 0x1; | |
2654 | else if (opP->reg == FPS) | |
2655 | tmpreg = 0x2; | |
2656 | else if (opP->reg == FPC) | |
2657 | tmpreg = 0x4; | |
2658 | else | |
a1c7c0f3 | 2659 | abort (); |
355afbcd KR |
2660 | install_operand (s[1], tmpreg); |
2661 | break; | |
6d27d3a2 | 2662 | |
355afbcd KR |
2663 | case 'S': /* Ignore it */ |
2664 | break; | |
6d27d3a2 | 2665 | |
355afbcd | 2666 | case 'T': |
a1c7c0f3 | 2667 | install_operand (s[1], get_num (&opP->disp, 30)); |
355afbcd | 2668 | break; |
6d27d3a2 | 2669 | |
355afbcd KR |
2670 | case 'U': /* Ignore it */ |
2671 | break; | |
6d27d3a2 | 2672 | |
355afbcd KR |
2673 | case 'c': |
2674 | switch (opP->reg) | |
2675 | { | |
2676 | case NC: | |
2677 | tmpreg = 0; | |
2678 | break; | |
2679 | case DC: | |
2680 | tmpreg = 1; | |
2681 | break; | |
2682 | case IC: | |
2683 | tmpreg = 2; | |
2684 | break; | |
2685 | case BC: | |
2686 | tmpreg = 3; | |
2687 | break; | |
2688 | default: | |
2689 | as_fatal ("failed sanity check"); | |
2690 | } /* switch on cache token */ | |
2691 | install_operand (s[1], tmpreg); | |
2692 | break; | |
a39116f1 | 2693 | #ifndef NO_68851 |
355afbcd KR |
2694 | /* JF: These are out of order, I fear. */ |
2695 | case 'f': | |
2696 | switch (opP->reg) | |
2697 | { | |
2698 | case SFC: | |
2699 | tmpreg = 0; | |
2700 | break; | |
2701 | case DFC: | |
2702 | tmpreg = 1; | |
2703 | break; | |
2704 | default: | |
a1c7c0f3 | 2705 | abort (); |
355afbcd KR |
2706 | } |
2707 | install_operand (s[1], tmpreg); | |
2708 | break; | |
6d27d3a2 | 2709 | |
9adcd781 ILT |
2710 | case '0': |
2711 | case '1': | |
2712 | case '2': | |
355afbcd KR |
2713 | switch (opP->reg) |
2714 | { | |
2715 | case TC: | |
2716 | tmpreg = 0; | |
2717 | break; | |
2718 | case CAL: | |
2719 | tmpreg = 4; | |
2720 | break; | |
2721 | case VAL: | |
2722 | tmpreg = 5; | |
2723 | break; | |
2724 | case SCC: | |
2725 | tmpreg = 6; | |
2726 | break; | |
2727 | case AC: | |
2728 | tmpreg = 7; | |
2729 | break; | |
2730 | default: | |
a1c7c0f3 | 2731 | abort (); |
355afbcd KR |
2732 | } |
2733 | install_operand (s[1], tmpreg); | |
2734 | break; | |
6d27d3a2 | 2735 | |
355afbcd KR |
2736 | case 'V': |
2737 | if (opP->reg == VAL) | |
2738 | break; | |
a1c7c0f3 | 2739 | abort (); |
6d27d3a2 | 2740 | |
355afbcd KR |
2741 | case 'W': |
2742 | switch (opP->reg) | |
2743 | { | |
355afbcd KR |
2744 | case DRP: |
2745 | tmpreg = 1; | |
2746 | break; | |
2747 | case SRP: | |
2748 | tmpreg = 2; | |
2749 | break; | |
2750 | case CRP: | |
2751 | tmpreg = 3; | |
2752 | break; | |
2753 | default: | |
a1c7c0f3 | 2754 | abort (); |
355afbcd KR |
2755 | } |
2756 | install_operand (s[1], tmpreg); | |
2757 | break; | |
6d27d3a2 | 2758 | |
355afbcd KR |
2759 | case 'X': |
2760 | switch (opP->reg) | |
2761 | { | |
2762 | case BAD: | |
2763 | case BAD + 1: | |
2764 | case BAD + 2: | |
2765 | case BAD + 3: | |
2766 | case BAD + 4: | |
2767 | case BAD + 5: | |
2768 | case BAD + 6: | |
2769 | case BAD + 7: | |
2770 | tmpreg = (4 << 10) | ((opP->reg - BAD) << 2); | |
2771 | break; | |
6d27d3a2 | 2772 | |
355afbcd KR |
2773 | case BAC: |
2774 | case BAC + 1: | |
2775 | case BAC + 2: | |
2776 | case BAC + 3: | |
2777 | case BAC + 4: | |
2778 | case BAC + 5: | |
2779 | case BAC + 6: | |
2780 | case BAC + 7: | |
2781 | tmpreg = (5 << 10) | ((opP->reg - BAC) << 2); | |
2782 | break; | |
6d27d3a2 | 2783 | |
355afbcd | 2784 | default: |
a1c7c0f3 | 2785 | abort (); |
355afbcd KR |
2786 | } |
2787 | install_operand (s[1], tmpreg); | |
2788 | break; | |
2789 | case 'Y': | |
2790 | know (opP->reg == PSR); | |
2791 | break; | |
2792 | case 'Z': | |
2793 | know (opP->reg == PCSR); | |
2794 | break; | |
f8701a3f | 2795 | #endif /* m68851 */ |
355afbcd KR |
2796 | case '3': |
2797 | switch (opP->reg) | |
2798 | { | |
2799 | case TT0: | |
2800 | tmpreg = 2; | |
2801 | break; | |
2802 | case TT1: | |
2803 | tmpreg = 3; | |
2804 | break; | |
2805 | default: | |
a1c7c0f3 | 2806 | abort (); |
355afbcd KR |
2807 | } |
2808 | install_operand (s[1], tmpreg); | |
2809 | break; | |
2810 | case 't': | |
a1c7c0f3 | 2811 | tmpreg = get_num (&opP->disp, 20); |
355afbcd | 2812 | install_operand (s[1], tmpreg); |
4134a793 | 2813 | break; |
a1c7c0f3 ILT |
2814 | case '_': /* used only for move16 absolute 32-bit address */ |
2815 | tmpreg = get_num (&opP->disp, 80); | |
355afbcd KR |
2816 | addword (tmpreg >> 16); |
2817 | addword (tmpreg & 0xFFFF); | |
4134a793 KR |
2818 | break; |
2819 | default: | |
a1c7c0f3 | 2820 | abort (); |
4134a793 | 2821 | } |
6d27d3a2 | 2822 | } |
3ad9ec6a | 2823 | |
6d27d3a2 KR |
2824 | /* By the time whe get here (FINALLY) the_ins contains the complete |
2825 | instruction, ready to be emitted. . . */ | |
a1c7c0f3 | 2826 | } |
fecd2382 | 2827 | |
355afbcd KR |
2828 | static int |
2829 | reverse_16_bits (in) | |
2830 | int in; | |
fecd2382 | 2831 | { |
355afbcd KR |
2832 | int out = 0; |
2833 | int n; | |
6d27d3a2 | 2834 | |
355afbcd KR |
2835 | static int mask[16] = |
2836 | { | |
2837 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
2838 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 | |
2839 | }; | |
2840 | for (n = 0; n < 16; n++) | |
2841 | { | |
2842 | if (in & mask[n]) | |
2843 | out |= mask[15 - n]; | |
2844 | } | |
2845 | return out; | |
2846 | } /* reverse_16_bits() */ | |
fecd2382 | 2847 | |
355afbcd KR |
2848 | static int |
2849 | reverse_8_bits (in) | |
2850 | int in; | |
fecd2382 | 2851 | { |
355afbcd KR |
2852 | int out = 0; |
2853 | int n; | |
6d27d3a2 | 2854 | |
355afbcd KR |
2855 | static int mask[8] = |
2856 | { | |
2857 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
2858 | }; | |
6d27d3a2 | 2859 | |
355afbcd KR |
2860 | for (n = 0; n < 8; n++) |
2861 | { | |
2862 | if (in & mask[n]) | |
2863 | out |= mask[7 - n]; | |
2864 | } | |
2865 | return out; | |
2866 | } /* reverse_8_bits() */ | |
fecd2382 | 2867 | |
04ef74bb KR |
2868 | /* Cause an extra frag to be generated here, inserting up to 10 bytes |
2869 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
2870 | is the subtype of the frag to be generated; its primary type is | |
2871 | rs_machine_dependent. | |
2872 | ||
2873 | The TYPE parameter is also used by md_convert_frag_1 and | |
2874 | md_estimate_size_before_relax. The appropriate type of fixup will | |
2875 | be emitted by md_convert_frag_1. | |
2876 | ||
2877 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
355afbcd KR |
2878 | static void |
2879 | install_operand (mode, val) | |
2880 | int mode; | |
2881 | int val; | |
fecd2382 | 2882 | { |
355afbcd KR |
2883 | switch (mode) |
2884 | { | |
2885 | case 's': | |
2886 | the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge */ | |
2887 | break; | |
2888 | case 'd': | |
2889 | the_ins.opcode[0] |= val << 9; | |
2890 | break; | |
2891 | case '1': | |
2892 | the_ins.opcode[1] |= val << 12; | |
2893 | break; | |
2894 | case '2': | |
2895 | the_ins.opcode[1] |= val << 6; | |
2896 | break; | |
2897 | case '3': | |
2898 | the_ins.opcode[1] |= val; | |
2899 | break; | |
2900 | case '4': | |
2901 | the_ins.opcode[2] |= val << 12; | |
2902 | break; | |
2903 | case '5': | |
2904 | the_ins.opcode[2] |= val << 6; | |
2905 | break; | |
2906 | case '6': | |
bcb8dff8 KR |
2907 | /* DANGER! This is a hack to force cas2l and cas2w cmds to be |
2908 | three words long! */ | |
355afbcd KR |
2909 | the_ins.numo++; |
2910 | the_ins.opcode[2] |= val; | |
2911 | break; | |
2912 | case '7': | |
2913 | the_ins.opcode[1] |= val << 7; | |
2914 | break; | |
2915 | case '8': | |
2916 | the_ins.opcode[1] |= val << 10; | |
2917 | break; | |
f8701a3f | 2918 | #ifndef NO_68851 |
355afbcd KR |
2919 | case '9': |
2920 | the_ins.opcode[1] |= val << 5; | |
2921 | break; | |
f8701a3f | 2922 | #endif |
6d27d3a2 | 2923 | |
355afbcd KR |
2924 | case 't': |
2925 | the_ins.opcode[1] |= (val << 10) | (val << 7); | |
2926 | break; | |
2927 | case 'D': | |
2928 | the_ins.opcode[1] |= (val << 12) | val; | |
2929 | break; | |
2930 | case 'g': | |
2931 | the_ins.opcode[0] |= val = 0xff; | |
2932 | break; | |
2933 | case 'i': | |
2934 | the_ins.opcode[0] |= val << 9; | |
2935 | break; | |
2936 | case 'C': | |
2937 | the_ins.opcode[1] |= val; | |
2938 | break; | |
2939 | case 'j': | |
2940 | the_ins.opcode[1] |= val; | |
2941 | the_ins.numo++; /* What a hack */ | |
2942 | break; | |
2943 | case 'k': | |
2944 | the_ins.opcode[1] |= val << 4; | |
2945 | break; | |
2946 | case 'b': | |
2947 | case 'w': | |
9e64486e | 2948 | case 'W': |
355afbcd KR |
2949 | case 'l': |
2950 | break; | |
2951 | case 'e': | |
2952 | the_ins.opcode[0] |= (val << 6); | |
2953 | break; | |
2954 | case 'L': | |
2955 | the_ins.opcode[1] = (val >> 16); | |
2956 | the_ins.opcode[2] = val & 0xffff; | |
2957 | break; | |
2958 | case 'c': | |
2959 | default: | |
2960 | as_fatal ("failed sanity check."); | |
2961 | } | |
2962 | } /* install_operand() */ | |
fecd2382 | 2963 | |
355afbcd KR |
2964 | static void |
2965 | install_gen_operand (mode, val) | |
2966 | int mode; | |
2967 | int val; | |
fecd2382 | 2968 | { |
355afbcd KR |
2969 | switch (mode) |
2970 | { | |
2971 | case 's': | |
2972 | the_ins.opcode[0] |= val; | |
2973 | break; | |
2974 | case 'd': | |
2975 | /* This is a kludge!!! */ | |
2976 | the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3; | |
2977 | break; | |
2978 | case 'b': | |
2979 | case 'w': | |
2980 | case 'l': | |
2981 | case 'f': | |
2982 | case 'F': | |
2983 | case 'x': | |
2984 | case 'p': | |
2985 | the_ins.opcode[0] |= val; | |
2986 | break; | |
2987 | /* more stuff goes here */ | |
2988 | default: | |
2989 | as_fatal ("failed sanity check."); | |
2990 | } | |
2991 | } /* install_gen_operand() */ | |
fecd2382 | 2992 | |
7c15cbe8 RP |
2993 | /* |
2994 | * verify that we have some number of paren pairs, do m68k_ip_op(), and | |
2995 | * then deal with the bitfield hack. | |
2996 | */ | |
2997 | ||
355afbcd KR |
2998 | static char * |
2999 | crack_operand (str, opP) | |
3000 | register char *str; | |
3001 | register struct m68k_op *opP; | |
fecd2382 | 3002 | { |
355afbcd KR |
3003 | register int parens; |
3004 | register int c; | |
3005 | register char *beg_str; | |
4026c122 | 3006 | int inquote = 0; |
6d27d3a2 | 3007 | |
355afbcd KR |
3008 | if (!str) |
3009 | { | |
3010 | return str; | |
3011 | } | |
3012 | beg_str = str; | |
4026c122 | 3013 | for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++) |
355afbcd | 3014 | { |
4026c122 | 3015 | if (! inquote) |
355afbcd | 3016 | { |
4026c122 ILT |
3017 | if (*str == '(') |
3018 | parens++; | |
3019 | else if (*str == ')') | |
3020 | { | |
3021 | if (!parens) | |
3022 | { /* ERROR */ | |
3023 | opP->error = "Extra )"; | |
3024 | return str; | |
3025 | } | |
3026 | --parens; | |
355afbcd | 3027 | } |
f8701a3f | 3028 | } |
4026c122 ILT |
3029 | if (flag_mri && *str == '\'') |
3030 | inquote = ! inquote; | |
355afbcd KR |
3031 | } |
3032 | if (!*str && parens) | |
3033 | { /* ERROR */ | |
3034 | opP->error = "Missing )"; | |
3035 | return str; | |
3036 | } | |
3037 | c = *str; | |
3038 | *str = '\0'; | |
a1c7c0f3 | 3039 | if (m68k_ip_op (beg_str, opP) != 0) |
355afbcd KR |
3040 | { |
3041 | *str = c; | |
3042 | return str; | |
3043 | } | |
3044 | *str = c; | |
3045 | if (c == '}') | |
3046 | c = *++str; /* JF bitfield hack */ | |
3047 | if (c) | |
3048 | { | |
3049 | c = *++str; | |
3050 | if (!c) | |
3051 | as_bad ("Missing operand"); | |
3052 | } | |
3053 | return str; | |
fecd2382 RP |
3054 | } |
3055 | ||
fecd2382 | 3056 | /* This is the guts of the machine-dependent assembler. STR points to a |
7c15cbe8 | 3057 | machine dependent instruction. This function is supposed to emit |
fecd2382 | 3058 | the frags/bytes it assembles to. |
a39116f1 | 3059 | */ |
a933d598 SC |
3060 | |
3061 | void | |
355afbcd KR |
3062 | insert_reg (regname, regnum) |
3063 | char *regname; | |
3064 | int regnum; | |
a933d598 SC |
3065 | { |
3066 | char buf[100]; | |
3067 | int i; | |
355afbcd KR |
3068 | |
3069 | #ifdef REGISTER_PREFIX | |
82489ea0 KR |
3070 | if (!flag_reg_prefix_optional) |
3071 | { | |
3072 | buf[0] = REGISTER_PREFIX; | |
3073 | strcpy (buf + 1, regname); | |
3074 | regname = buf; | |
3075 | } | |
355afbcd KR |
3076 | #endif |
3077 | ||
82489ea0 KR |
3078 | symbol_table_insert (symbol_new (regname, reg_section, regnum, |
3079 | &zero_address_frag)); | |
a933d598 SC |
3080 | |
3081 | for (i = 0; regname[i]; i++) | |
355afbcd | 3082 | buf[i] = islower (regname[i]) ? toupper (regname[i]) : regname[i]; |
a933d598 | 3083 | buf[i] = '\0'; |
6d27d3a2 | 3084 | |
82489ea0 KR |
3085 | symbol_table_insert (symbol_new (buf, reg_section, regnum, |
3086 | &zero_address_frag)); | |
a933d598 SC |
3087 | } |
3088 | ||
49864cfa | 3089 | struct init_entry |
355afbcd | 3090 | { |
bcb8dff8 | 3091 | const char *name; |
355afbcd | 3092 | int number; |
49864cfa | 3093 | }; |
355afbcd | 3094 | |
bcb8dff8 | 3095 | static const struct init_entry init_table[] = |
355afbcd | 3096 | { |
bcb8dff8 KR |
3097 | { "d0", DATA0 }, |
3098 | { "d1", DATA1 }, | |
3099 | { "d2", DATA2 }, | |
3100 | { "d3", DATA3 }, | |
3101 | { "d4", DATA4 }, | |
3102 | { "d5", DATA5 }, | |
3103 | { "d6", DATA6 }, | |
3104 | { "d7", DATA7 }, | |
3105 | { "a0", ADDR0 }, | |
3106 | { "a1", ADDR1 }, | |
3107 | { "a2", ADDR2 }, | |
3108 | { "a3", ADDR3 }, | |
3109 | { "a4", ADDR4 }, | |
3110 | { "a5", ADDR5 }, | |
3111 | { "a6", ADDR6 }, | |
3112 | { "fp", ADDR6 }, | |
3113 | { "a7", ADDR7 }, | |
3114 | { "sp", ADDR7 }, | |
a1c7c0f3 | 3115 | { "ssp", ADDR7 }, |
bcb8dff8 KR |
3116 | { "fp0", FP0 }, |
3117 | { "fp1", FP1 }, | |
3118 | { "fp2", FP2 }, | |
3119 | { "fp3", FP3 }, | |
3120 | { "fp4", FP4 }, | |
3121 | { "fp5", FP5 }, | |
3122 | { "fp6", FP6 }, | |
3123 | { "fp7", FP7 }, | |
3124 | { "fpi", FPI }, | |
3125 | { "fpiar", FPI }, | |
3126 | { "fpc", FPI }, | |
3127 | { "fps", FPS }, | |
3128 | { "fpsr", FPS }, | |
3129 | { "fpc", FPC }, | |
3130 | { "fpcr", FPC }, | |
064ba683 ILT |
3131 | { "control", FPC }, |
3132 | { "status", FPS }, | |
3133 | { "iaddr", FPI }, | |
bcb8dff8 KR |
3134 | |
3135 | { "cop0", COP0 }, | |
3136 | { "cop1", COP1 }, | |
3137 | { "cop2", COP2 }, | |
3138 | { "cop3", COP3 }, | |
3139 | { "cop4", COP4 }, | |
3140 | { "cop5", COP5 }, | |
3141 | { "cop6", COP6 }, | |
3142 | { "cop7", COP7 }, | |
3143 | { "pc", PC }, | |
3144 | { "zpc", ZPC }, | |
3145 | { "sr", SR }, | |
3146 | ||
3147 | { "ccr", CCR }, | |
3148 | { "cc", CCR }, | |
3149 | ||
8d20a0a8 C |
3150 | /* control registers */ |
3151 | { "sfc", SFC }, /* Source Function Code */ | |
064ba683 | 3152 | { "sfcr", SFC }, |
8d20a0a8 | 3153 | { "dfc", DFC }, /* Destination Function Code */ |
064ba683 | 3154 | { "dfcr", DFC }, |
8d20a0a8 C |
3155 | { "cacr", CACR }, /* Cache Control Register */ |
3156 | { "caar", CAAR }, /* Cache Address Register */ | |
3157 | ||
3158 | { "usp", USP }, /* User Stack Pointer */ | |
3159 | { "vbr", VBR }, /* Vector Base Register */ | |
3160 | { "msp", MSP }, /* Master Stack Pointer */ | |
3161 | { "isp", ISP }, /* Interrupt Stack Pointer */ | |
3162 | ||
3163 | { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0 */ | |
3164 | { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1 */ | |
3165 | { "dtt0", DTT0 }, /* Data Transparent Translation Register 0 */ | |
3166 | { "dtt1", DTT1 }, /* Data Transparent Translation Register 1 */ | |
3167 | ||
3168 | /* 68ec040 versions of same */ | |
3169 | { "iacr0", ITT0 }, /* Instruction Access Control Register 0 */ | |
3170 | { "iacr1", ITT1 }, /* Instruction Access Control Register 0 */ | |
3171 | { "dacr0", DTT0 }, /* Data Access Control Register 0 */ | |
3172 | { "dacr1", DTT1 }, /* Data Access Control Register 0 */ | |
3173 | ||
0b810a6e ILT |
3174 | /* mcf5200 versions of same. The ColdFire programmer's reference |
3175 | manual indicated that the order is 2,3,0,1, but Ken Rose | |
3176 | <rose@netcom.com> says that 0,1,2,3 is the correct order. */ | |
3177 | { "acr0", ITT0 }, /* Access Control Unit 0 */ | |
3178 | { "acr1", ITT1 }, /* Access Control Unit 1 */ | |
3179 | { "acr2", DTT0 }, /* Access Control Unit 2 */ | |
3180 | { "acr3", DTT1 }, /* Access Control Unit 3 */ | |
8d20a0a8 C |
3181 | |
3182 | { "tc", TC }, /* MMU Translation Control Register */ | |
3183 | { "tcr", TC }, | |
3184 | ||
3185 | { "mmusr", MMUSR }, /* MMU Status Register */ | |
3186 | { "srp", SRP }, /* User Root Pointer */ | |
3187 | { "urp", URP }, /* Supervisor Root Pointer */ | |
3188 | ||
9ad5755f KR |
3189 | { "buscr", BUSCR }, |
3190 | { "pcr", PCR }, | |
bcb8dff8 | 3191 | |
8d20a0a8 C |
3192 | { "rombar", ROMBAR }, /* ROM Base Address Register */ |
3193 | { "rambar0", RAMBAR0 }, /* ROM Base Address Register */ | |
3194 | { "rambar1", RAMBAR1 }, /* ROM Base Address Register */ | |
3195 | { "mbar", MBAR }, /* Module Base Address Register */ | |
3196 | /* end of control registers */ | |
3197 | ||
bcb8dff8 KR |
3198 | { "ac", AC }, |
3199 | { "bc", BC }, | |
3200 | { "cal", CAL }, | |
3201 | { "crp", CRP }, | |
3202 | { "drp", DRP }, | |
3203 | { "pcsr", PCSR }, | |
3204 | { "psr", PSR }, | |
3205 | { "scc", SCC }, | |
3206 | { "val", VAL }, | |
3207 | { "bad0", BAD0 }, | |
3208 | { "bad1", BAD1 }, | |
3209 | { "bad2", BAD2 }, | |
3210 | { "bad3", BAD3 }, | |
3211 | { "bad4", BAD4 }, | |
3212 | { "bad5", BAD5 }, | |
3213 | { "bad6", BAD6 }, | |
3214 | { "bad7", BAD7 }, | |
3215 | { "bac0", BAC0 }, | |
3216 | { "bac1", BAC1 }, | |
3217 | { "bac2", BAC2 }, | |
3218 | { "bac3", BAC3 }, | |
3219 | { "bac4", BAC4 }, | |
3220 | { "bac5", BAC5 }, | |
3221 | { "bac6", BAC6 }, | |
3222 | { "bac7", BAC7 }, | |
3223 | ||
3224 | { "ic", IC }, | |
3225 | { "dc", DC }, | |
3226 | { "nc", NC }, | |
3227 | ||
3228 | { "tt0", TT0 }, | |
3229 | { "tt1", TT1 }, | |
4134a793 | 3230 | /* 68ec030 versions of same */ |
bcb8dff8 KR |
3231 | { "ac0", TT0 }, |
3232 | { "ac1", TT1 }, | |
4134a793 | 3233 | /* 68ec030 access control unit, identical to 030 MMU status reg */ |
bcb8dff8 | 3234 | { "acusr", PSR }, |
a933d598 | 3235 | |
a1c7c0f3 ILT |
3236 | /* Suppressed data and address registers. */ |
3237 | { "zd0", ZDATA0 }, | |
3238 | { "zd1", ZDATA1 }, | |
3239 | { "zd2", ZDATA2 }, | |
3240 | { "zd3", ZDATA3 }, | |
3241 | { "zd4", ZDATA4 }, | |
3242 | { "zd5", ZDATA5 }, | |
3243 | { "zd6", ZDATA6 }, | |
3244 | { "zd7", ZDATA7 }, | |
3245 | { "za0", ZADDR0 }, | |
3246 | { "za1", ZADDR1 }, | |
3247 | { "za2", ZADDR2 }, | |
3248 | { "za3", ZADDR3 }, | |
3249 | { "za4", ZADDR4 }, | |
3250 | { "za5", ZADDR5 }, | |
3251 | { "za6", ZADDR6 }, | |
3252 | { "za7", ZADDR7 }, | |
3253 | ||
bcb8dff8 | 3254 | { 0, 0 } |
a933d598 SC |
3255 | }; |
3256 | ||
a933d598 | 3257 | void |
355afbcd | 3258 | init_regtable () |
a933d598 SC |
3259 | { |
3260 | int i; | |
6d27d3a2 | 3261 | for (i = 0; init_table[i].name; i++) |
355afbcd | 3262 | insert_reg (init_table[i].name, init_table[i].number); |
a933d598 | 3263 | } |
6d27d3a2 | 3264 | |
df3768fb | 3265 | static int no_68851, no_68881; |
a933d598 | 3266 | |
dff60b7d ILT |
3267 | #ifdef OBJ_AOUT |
3268 | /* a.out machine type. Default to 68020. */ | |
3269 | int m68k_aout_machtype = 2; | |
3270 | #endif | |
3271 | ||
fecd2382 | 3272 | void |
355afbcd | 3273 | md_assemble (str) |
6d27d3a2 | 3274 | char *str; |
fecd2382 | 3275 | { |
a1c7c0f3 | 3276 | const char *er; |
355afbcd KR |
3277 | short *fromP; |
3278 | char *toP = NULL; | |
3279 | int m, n = 0; | |
3280 | char *to_beg_P; | |
3281 | int shorts_this_frag; | |
5f8cb05e | 3282 | fixS *fixP; |
6d27d3a2 | 3283 | |
4026c122 ILT |
3284 | /* In MRI mode, the instruction and operands are separated by a |
3285 | space. Anything following the operands is a comment. The label | |
3286 | has already been removed. */ | |
3287 | if (flag_mri) | |
3288 | { | |
3289 | char *s; | |
3290 | int fields = 0; | |
3291 | int infield = 0; | |
3292 | int inquote = 0; | |
3293 | ||
3294 | for (s = str; *s != '\0'; s++) | |
3295 | { | |
3296 | if ((*s == ' ' || *s == '\t') && ! inquote) | |
3297 | { | |
3298 | if (infield) | |
3299 | { | |
3300 | ++fields; | |
3301 | if (fields >= 2) | |
3302 | { | |
3303 | *s = '\0'; | |
3304 | break; | |
3305 | } | |
3306 | infield = 0; | |
3307 | } | |
3308 | } | |
3309 | else | |
3310 | { | |
3311 | if (! infield) | |
3312 | infield = 1; | |
3313 | if (*s == '\'') | |
3314 | inquote = ! inquote; | |
3315 | } | |
3316 | } | |
3317 | } | |
3318 | ||
e284846a | 3319 | memset ((char *) (&the_ins), '\0', sizeof (the_ins)); |
355afbcd KR |
3320 | m68k_ip (str); |
3321 | er = the_ins.error; | |
3322 | if (!er) | |
3323 | { | |
a1c7c0f3 | 3324 | for (n = 0; n < the_ins.numargs; n++) |
355afbcd KR |
3325 | if (the_ins.operands[n].error) |
3326 | { | |
3327 | er = the_ins.operands[n].error; | |
3328 | break; | |
3329 | } | |
3330 | } | |
3331 | if (er) | |
3332 | { | |
3333 | as_bad ("%s -- statement `%s' ignored", er, str); | |
3334 | return; | |
3335 | } | |
6d27d3a2 | 3336 | |
d703b5a7 ILT |
3337 | /* If there is a current label, record that it marks an instruction. */ |
3338 | if (current_label != NULL) | |
3339 | { | |
3340 | current_label->text = 1; | |
3341 | current_label = NULL; | |
3342 | } | |
3343 | ||
355afbcd | 3344 | if (the_ins.nfrag == 0) |
49864cfa KR |
3345 | { |
3346 | /* No frag hacking involved; just put it out */ | |
355afbcd KR |
3347 | toP = frag_more (2 * the_ins.numo); |
3348 | fromP = &the_ins.opcode[0]; | |
3349 | for (m = the_ins.numo; m; --m) | |
3350 | { | |
3351 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3352 | toP += 2; | |
3353 | fromP++; | |
f8701a3f | 3354 | } |
355afbcd KR |
3355 | /* put out symbol-dependent info */ |
3356 | for (m = 0; m < the_ins.nrel; m++) | |
3357 | { | |
3358 | switch (the_ins.reloc[m].wid) | |
3359 | { | |
3360 | case 'B': | |
3361 | n = 1; | |
3362 | break; | |
3363 | case 'b': | |
3364 | n = 1; | |
3365 | break; | |
3366 | case '3': | |
0b810a6e | 3367 | n = 1; |
355afbcd KR |
3368 | break; |
3369 | case 'w': | |
3370 | n = 2; | |
3371 | break; | |
3372 | case 'l': | |
3373 | n = 4; | |
3374 | break; | |
3375 | default: | |
49864cfa KR |
3376 | as_fatal ("Don't know how to figure width of %c in md_assemble()", |
3377 | the_ins.reloc[m].wid); | |
355afbcd | 3378 | } |
6d27d3a2 | 3379 | |
5f8cb05e ILT |
3380 | fixP = fix_new_exp (frag_now, |
3381 | ((toP - frag_now->fr_literal) | |
3382 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
3383 | n, | |
3384 | &the_ins.reloc[m].exp, | |
3385 | the_ins.reloc[m].pcrel, | |
a043f579 ILT |
3386 | get_reloc_code (n, the_ins.reloc[m].pcrel, |
3387 | the_ins.reloc[m].pic_reloc)); | |
5f8cb05e | 3388 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; |
a78bc551 ILT |
3389 | if (the_ins.reloc[m].wid == 'B') |
3390 | fixP->fx_signed = 1; | |
f8701a3f | 3391 | } |
355afbcd KR |
3392 | return; |
3393 | } | |
3394 | ||
3395 | /* There's some frag hacking */ | |
3396 | for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++) | |
3397 | { | |
3398 | int wid; | |
3399 | ||
3400 | if (n == 0) | |
3401 | wid = 2 * the_ins.fragb[n].fragoff; | |
3402 | else | |
3403 | wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
3404 | toP = frag_more (wid); | |
3405 | to_beg_P = toP; | |
3406 | shorts_this_frag = 0; | |
3407 | for (m = wid / 2; m; --m) | |
3408 | { | |
3409 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3410 | toP += 2; | |
3411 | fromP++; | |
3412 | shorts_this_frag++; | |
3413 | } | |
3414 | for (m = 0; m < the_ins.nrel; m++) | |
3415 | { | |
49864cfa | 3416 | if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag) |
355afbcd | 3417 | { |
49864cfa | 3418 | the_ins.reloc[m].n -= 2 * shorts_this_frag; |
355afbcd KR |
3419 | break; |
3420 | } | |
3421 | wid = the_ins.reloc[m].wid; | |
3422 | if (wid == 0) | |
3423 | continue; | |
3424 | the_ins.reloc[m].wid = 0; | |
3425 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
3426 | ||
5f8cb05e ILT |
3427 | fixP = fix_new_exp (frag_now, |
3428 | ((toP - frag_now->fr_literal) | |
3429 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
3430 | wid, | |
3431 | &the_ins.reloc[m].exp, | |
3432 | the_ins.reloc[m].pcrel, | |
a043f579 ILT |
3433 | get_reloc_code (wid, the_ins.reloc[m].pcrel, |
3434 | the_ins.reloc[m].pic_reloc)); | |
5f8cb05e | 3435 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; |
fecd2382 | 3436 | } |
49864cfa KR |
3437 | (void) frag_var (rs_machine_dependent, 10, 0, |
3438 | (relax_substateT) (the_ins.fragb[n].fragty), | |
3439 | the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P); | |
355afbcd KR |
3440 | } |
3441 | n = (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
3442 | shorts_this_frag = 0; | |
3443 | if (n) | |
3444 | { | |
3445 | toP = frag_more (n * sizeof (short)); | |
3446 | while (n--) | |
3447 | { | |
3448 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3449 | toP += 2; | |
3450 | fromP++; | |
3451 | shorts_this_frag++; | |
fecd2382 | 3452 | } |
355afbcd KR |
3453 | } |
3454 | for (m = 0; m < the_ins.nrel; m++) | |
3455 | { | |
3456 | int wid; | |
3457 | ||
3458 | wid = the_ins.reloc[m].wid; | |
3459 | if (wid == 0) | |
3460 | continue; | |
3461 | the_ins.reloc[m].wid = 0; | |
3462 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
3463 | ||
5f8cb05e ILT |
3464 | fixP = fix_new_exp (frag_now, |
3465 | ((the_ins.reloc[m].n + toP - frag_now->fr_literal) | |
3466 | - shorts_this_frag * 2), | |
3467 | wid, | |
3468 | &the_ins.reloc[m].exp, | |
3469 | the_ins.reloc[m].pcrel, | |
a043f579 ILT |
3470 | get_reloc_code (wid, the_ins.reloc[m].pcrel, |
3471 | the_ins.reloc[m].pic_reloc)); | |
5f8cb05e | 3472 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; |
355afbcd | 3473 | } |
fecd2382 RP |
3474 | } |
3475 | ||
fecd2382 | 3476 | void |
355afbcd | 3477 | md_begin () |
fecd2382 | 3478 | { |
355afbcd | 3479 | /* |
e284846a KR |
3480 | * md_begin -- set up hash tables with 68000 instructions. |
3481 | * similar to what the vax assembler does. ---phr | |
3482 | */ | |
355afbcd | 3483 | /* RMS claims the thing to do is take the m68k-opcode.h table, and make |
e284846a KR |
3484 | a copy of it at runtime, adding in the information we want but isn't |
3485 | there. I think it'd be better to have an awk script hack the table | |
3486 | at compile time. Or even just xstr the table and use it as-is. But | |
3487 | my lord ghod hath spoken, so we do it this way. Excuse the ugly var | |
3488 | names. */ | |
6d27d3a2 | 3489 | |
b79de3a1 | 3490 | register const struct m68k_opcode *ins; |
355afbcd | 3491 | register struct m68k_incant *hack, *slak; |
bcb8dff8 | 3492 | register const char *retval = 0; /* empty string, or error msg text */ |
355afbcd KR |
3493 | register unsigned int i; |
3494 | register char c; | |
3495 | ||
064ba683 | 3496 | if (flag_mri) |
6700d36e ILT |
3497 | { |
3498 | flag_reg_prefix_optional = 1; | |
3499 | m68k_abspcadd = 1; | |
924160b0 ILT |
3500 | if (! m68k_rel32_from_cmdline) |
3501 | m68k_rel32 = 0; | |
6700d36e | 3502 | } |
064ba683 | 3503 | |
82489ea0 | 3504 | op_hash = hash_new (); |
355afbcd KR |
3505 | |
3506 | obstack_begin (&robyn, 4000); | |
a1c7c0f3 | 3507 | for (i = 0; i < m68k_numopcodes; i++) |
355afbcd KR |
3508 | { |
3509 | hack = slak = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
3510 | do | |
3511 | { | |
a1c7c0f3 | 3512 | ins = &m68k_opcodes[i]; |
e284846a KR |
3513 | /* We *could* ignore insns that don't match our arch here |
3514 | but just leaving them out of the hash. */ | |
355afbcd KR |
3515 | slak->m_operands = ins->args; |
3516 | slak->m_opnum = strlen (slak->m_operands) / 2; | |
3517 | slak->m_arch = ins->arch; | |
3518 | slak->m_opcode = ins->opcode; | |
3519 | /* This is kludgey */ | |
3520 | slak->m_codenum = ((ins->match) & 0xffffL) ? 2 : 1; | |
a1c7c0f3 ILT |
3521 | if (i + 1 != m68k_numopcodes |
3522 | && !strcmp (ins->name, m68k_opcodes[i + 1].name)) | |
355afbcd KR |
3523 | { |
3524 | slak->m_next = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
e284846a | 3525 | i++; |
355afbcd KR |
3526 | } |
3527 | else | |
3528 | slak->m_next = 0; | |
3529 | slak = slak->m_next; | |
f8701a3f | 3530 | } |
355afbcd KR |
3531 | while (slak); |
3532 | ||
3533 | retval = hash_insert (op_hash, ins->name, (char *) hack); | |
dff60b7d | 3534 | if (retval) |
b79de3a1 KR |
3535 | as_fatal ("Internal Error: Can't hash %s: %s", ins->name, retval); |
3536 | } | |
3537 | ||
a1c7c0f3 | 3538 | for (i = 0; i < m68k_numaliases; i++) |
b79de3a1 KR |
3539 | { |
3540 | const char *name = m68k_opcode_aliases[i].primary; | |
3541 | const char *alias = m68k_opcode_aliases[i].alias; | |
3542 | PTR val = hash_find (op_hash, name); | |
3543 | if (!val) | |
3544 | as_fatal ("Internal Error: Can't find %s in hash table", name); | |
3545 | retval = hash_insert (op_hash, alias, val); | |
3546 | if (retval) | |
3547 | as_fatal ("Internal Error: Can't hash %s: %s", alias, retval); | |
355afbcd | 3548 | } |
6d27d3a2 | 3549 | |
6700d36e ILT |
3550 | /* In MRI mode, all unsized branches are variable sized. Normally, |
3551 | they are word sized. */ | |
3552 | if (flag_mri) | |
3553 | { | |
3554 | static struct m68k_opcode_alias mri_aliases[] = | |
3555 | { | |
3556 | { "bhi", "jhi", }, | |
3557 | { "bls", "jls", }, | |
3558 | { "bcc", "jcc", }, | |
3559 | { "bcs", "jcs", }, | |
3560 | { "bne", "jne", }, | |
3561 | { "beq", "jeq", }, | |
3562 | { "bvc", "jvc", }, | |
3563 | { "bvs", "jvs", }, | |
3564 | { "bpl", "jpl", }, | |
3565 | { "bmi", "jmi", }, | |
3566 | { "bge", "jge", }, | |
3567 | { "blt", "jlt", }, | |
3568 | { "bgt", "jgt", }, | |
3569 | { "ble", "jle", }, | |
3570 | { "bra", "jra", }, | |
3571 | { "bsr", "jbsr", }, | |
3572 | }; | |
3573 | ||
3574 | for (i = 0; i < sizeof mri_aliases / sizeof mri_aliases[0]; i++) | |
3575 | { | |
3576 | const char *name = mri_aliases[i].primary; | |
3577 | const char *alias = mri_aliases[i].alias; | |
3578 | PTR val = hash_find (op_hash, name); | |
3579 | if (!val) | |
3580 | as_fatal ("Internal Error: Can't find %s in hash table", name); | |
3581 | retval = hash_jam (op_hash, alias, val); | |
3582 | if (retval) | |
3583 | as_fatal ("Internal Error: Can't hash %s: %s", alias, retval); | |
3584 | } | |
3585 | } | |
3586 | ||
355afbcd KR |
3587 | for (i = 0; i < sizeof (mklower_table); i++) |
3588 | mklower_table[i] = (isupper (c = (char) i)) ? tolower (c) : c; | |
6d27d3a2 | 3589 | |
355afbcd KR |
3590 | for (i = 0; i < sizeof (notend_table); i++) |
3591 | { | |
3592 | notend_table[i] = 0; | |
3593 | alt_notend_table[i] = 0; | |
3594 | } | |
3595 | notend_table[','] = 1; | |
3596 | notend_table['{'] = 1; | |
3597 | notend_table['}'] = 1; | |
3598 | alt_notend_table['a'] = 1; | |
3599 | alt_notend_table['A'] = 1; | |
3600 | alt_notend_table['d'] = 1; | |
3601 | alt_notend_table['D'] = 1; | |
3602 | alt_notend_table['#'] = 1; | |
5f8cb05e | 3603 | alt_notend_table['&'] = 1; |
355afbcd KR |
3604 | alt_notend_table['f'] = 1; |
3605 | alt_notend_table['F'] = 1; | |
fecd2382 | 3606 | #ifdef REGISTER_PREFIX |
355afbcd | 3607 | alt_notend_table[REGISTER_PREFIX] = 1; |
fecd2382 | 3608 | #endif |
f8701a3f | 3609 | |
a1c7c0f3 ILT |
3610 | /* We need to put '(' in alt_notend_table to handle |
3611 | cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) | |
3612 | */ | |
3613 | alt_notend_table['('] = 1; | |
3614 | ||
3615 | /* We need to put '@' in alt_notend_table to handle | |
3616 | cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) | |
3617 | */ | |
3618 | alt_notend_table['@'] = 1; | |
3619 | ||
8d20a0a8 C |
3620 | /* We need to put digits in alt_notend_table to handle |
3621 | bfextu %d0{24:1},%d0 | |
3622 | */ | |
3623 | alt_notend_table['0'] = 1; | |
3624 | alt_notend_table['1'] = 1; | |
3625 | alt_notend_table['2'] = 1; | |
3626 | alt_notend_table['3'] = 1; | |
3627 | alt_notend_table['4'] = 1; | |
3628 | alt_notend_table['5'] = 1; | |
3629 | alt_notend_table['6'] = 1; | |
3630 | alt_notend_table['7'] = 1; | |
3631 | alt_notend_table['8'] = 1; | |
3632 | alt_notend_table['9'] = 1; | |
3633 | ||
3ad9ec6a | 3634 | #ifndef MIT_SYNTAX_ONLY |
355afbcd | 3635 | /* Insert pseudo ops, these have to go into the opcode table since |
bcb8dff8 | 3636 | gas expects pseudo ops to start with a dot */ |
355afbcd KR |
3637 | { |
3638 | int n = 0; | |
3639 | while (mote_pseudo_table[n].poc_name) | |
3640 | { | |
3641 | hack = (struct m68k_incant *) | |
3642 | obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
3643 | hash_insert (op_hash, | |
3644 | mote_pseudo_table[n].poc_name, (char *) hack); | |
3645 | hack->m_operands = 0; | |
3646 | hack->m_opnum = n; | |
3647 | n++; | |
3648 | } | |
3649 | } | |
3ad9ec6a ILT |
3650 | #endif |
3651 | ||
355afbcd | 3652 | init_regtable (); |
a043f579 ILT |
3653 | |
3654 | #ifdef OBJ_ELF | |
3655 | record_alignment (text_section, 2); | |
3656 | record_alignment (data_section, 2); | |
3657 | record_alignment (bss_section, 2); | |
3658 | #endif | |
fecd2382 RP |
3659 | } |
3660 | ||
b4d51f3d ILT |
3661 | static void |
3662 | select_control_regs () | |
3663 | { | |
3664 | /* Note which set of "movec" control registers is available. */ | |
3665 | switch (cpu_of_arch (current_architecture)) | |
3666 | { | |
3667 | case m68000: | |
3668 | control_regs = m68000_control_regs; | |
3669 | break; | |
3670 | case m68010: | |
3671 | control_regs = m68010_control_regs; | |
3672 | break; | |
3673 | case m68020: | |
3674 | case m68030: | |
3675 | control_regs = m68020_control_regs; | |
3676 | break; | |
3677 | case m68040: | |
3678 | control_regs = m68040_control_regs; | |
3679 | break; | |
3680 | case m68060: | |
3681 | control_regs = m68060_control_regs; | |
3682 | break; | |
3683 | case cpu32: | |
3684 | control_regs = cpu32_control_regs; | |
3685 | break; | |
3686 | case mcf5200: | |
3687 | control_regs = mcf5200_control_regs; | |
3688 | break; | |
3689 | default: | |
3690 | abort (); | |
3691 | } | |
3692 | } | |
3693 | ||
82489ea0 KR |
3694 | void |
3695 | m68k_init_after_args () | |
3696 | { | |
3697 | if (cpu_of_arch (current_architecture) == 0) | |
3698 | { | |
064ba683 | 3699 | int i; |
b79de3a1 | 3700 | const char *default_cpu = TARGET_CPU; |
82489ea0 | 3701 | |
b79de3a1 KR |
3702 | if (*default_cpu == 'm') |
3703 | default_cpu++; | |
3704 | for (i = 0; i < n_archs; i++) | |
e9bb39b4 | 3705 | if (strcasecmp (default_cpu, archs[i].name) == 0) |
b79de3a1 KR |
3706 | break; |
3707 | if (i == n_archs) | |
3708 | { | |
3709 | as_bad ("unrecognized default cpu `%s' ???", TARGET_CPU); | |
3710 | current_architecture |= m68020; | |
3711 | } | |
3712 | else | |
3713 | current_architecture |= archs[i].arch; | |
82489ea0 | 3714 | } |
b79de3a1 KR |
3715 | /* Permit m68881 specification with all cpus; those that can't work |
3716 | with a coprocessor could be doing emulation. */ | |
82489ea0 KR |
3717 | if (current_architecture & m68851) |
3718 | { | |
3719 | if (current_architecture & m68040) | |
3720 | { | |
3721 | as_warn ("68040 and 68851 specified; mmu instructions may assemble incorrectly"); | |
3722 | } | |
3723 | } | |
3724 | /* What other incompatibilities could we check for? */ | |
3725 | ||
3726 | /* Toss in some default assumptions about coprocessors. */ | |
3727 | if (!no_68881 | |
3728 | && (cpu_of_arch (current_architecture) | |
3729 | /* Can CPU32 have a 68881 coprocessor?? */ | |
3730 | & (m68020 | m68030 | cpu32))) | |
3731 | { | |
3732 | current_architecture |= m68881; | |
3733 | } | |
3734 | if (!no_68851 | |
3735 | && (cpu_of_arch (current_architecture) & m68020up) != 0 | |
3736 | && (cpu_of_arch (current_architecture) & m68040up) == 0) | |
3737 | { | |
3738 | current_architecture |= m68851; | |
3739 | } | |
3740 | if (no_68881 && (current_architecture & m68881)) | |
3741 | as_bad ("options for 68881 and no-68881 both given"); | |
3742 | if (no_68851 && (current_architecture & m68851)) | |
3743 | as_bad ("options for 68851 and no-68851 both given"); | |
3744 | ||
3745 | #ifdef OBJ_AOUT | |
3746 | /* Work out the magic number. This isn't very general. */ | |
3747 | if (current_architecture & m68000) | |
3748 | m68k_aout_machtype = 0; | |
3749 | else if (current_architecture & m68010) | |
3750 | m68k_aout_machtype = 1; | |
3751 | else if (current_architecture & m68020) | |
3752 | m68k_aout_machtype = 2; | |
3753 | else | |
3754 | m68k_aout_machtype = 2; | |
3755 | #endif | |
3756 | ||
3757 | /* Note which set of "movec" control registers is available. */ | |
b4d51f3d | 3758 | select_control_regs (); |
04ef74bb KR |
3759 | |
3760 | if (cpu_of_arch (current_architecture) < m68020) | |
3761 | md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0; | |
82489ea0 | 3762 | } |
d703b5a7 ILT |
3763 | \f |
3764 | /* This is called when a label is defined. */ | |
3765 | ||
3766 | void | |
3767 | m68k_frob_label (sym) | |
3768 | symbolS *sym; | |
3769 | { | |
3770 | struct label_line *n; | |
3771 | ||
3772 | n = (struct label_line *) xmalloc (sizeof *n); | |
3773 | n->next = labels; | |
3774 | n->label = sym; | |
3775 | as_where (&n->file, &n->line); | |
ffecfc8b | 3776 | n->text = 0; |
d703b5a7 ILT |
3777 | labels = n; |
3778 | current_label = n; | |
3779 | } | |
3780 | ||
3781 | /* This is called when a value that is not an instruction is emitted. */ | |
3782 | ||
3783 | void | |
3784 | m68k_flush_pending_output () | |
3785 | { | |
3786 | current_label = NULL; | |
3787 | } | |
3788 | ||
3789 | /* This is called at the end of the assembly, when the final value of | |
3790 | the label is known. We warn if this is a text symbol aligned at an | |
3791 | odd location. */ | |
3792 | ||
3793 | void | |
3794 | m68k_frob_symbol (sym) | |
3795 | symbolS *sym; | |
3796 | { | |
3797 | if ((S_GET_VALUE (sym) & 1) != 0) | |
3798 | { | |
3799 | struct label_line *l; | |
82489ea0 | 3800 | |
d703b5a7 ILT |
3801 | for (l = labels; l != NULL; l = l->next) |
3802 | { | |
3803 | if (l->label == sym) | |
3804 | { | |
3805 | if (l->text) | |
3806 | as_warn_where (l->file, l->line, | |
3807 | "text label `%s' aligned to odd boundary", | |
3808 | S_GET_NAME (sym)); | |
3809 | break; | |
3810 | } | |
3811 | } | |
3812 | } | |
3813 | } | |
3814 | \f | |
20710f1c ILT |
3815 | /* This is called if we go in or out of MRI mode because of the .mri |
3816 | pseudo-op. */ | |
3817 | ||
3818 | void | |
3819 | m68k_mri_mode_change (on) | |
3820 | int on; | |
3821 | { | |
3822 | if (on) | |
3823 | { | |
3824 | if (! flag_reg_prefix_optional) | |
3825 | { | |
3826 | flag_reg_prefix_optional = 1; | |
3827 | #ifdef REGISTER_PREFIX | |
3828 | init_regtable (); | |
3829 | #endif | |
3830 | } | |
3831 | m68k_abspcadd = 1; | |
924160b0 ILT |
3832 | if (! m68k_rel32_from_cmdline) |
3833 | m68k_rel32 = 0; | |
20710f1c ILT |
3834 | } |
3835 | else | |
3836 | { | |
3837 | if (! reg_prefix_optional_seen) | |
3838 | { | |
3839 | #ifdef REGISTER_PREFIX_OPTIONAL | |
3840 | flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
3841 | #else | |
3842 | flag_reg_prefix_optional = 0; | |
3843 | #endif | |
3844 | #ifdef REGISTER_PREFIX | |
3845 | init_regtable (); | |
3846 | #endif | |
3847 | } | |
3848 | m68k_abspcadd = 0; | |
924160b0 ILT |
3849 | if (! m68k_rel32_from_cmdline) |
3850 | m68k_rel32 = 1; | |
20710f1c ILT |
3851 | } |
3852 | } | |
3853 | ||
fecd2382 RP |
3854 | /* Equal to MAX_PRECISION in atof-ieee.c */ |
3855 | #define MAX_LITTLENUMS 6 | |
3856 | ||
a1c7c0f3 ILT |
3857 | /* Turn a string in input_line_pointer into a floating point constant |
3858 | of type type, and store the appropriate bytes in *litP. The number | |
3859 | of LITTLENUMS emitted is stored in *sizeP . An error message is | |
3860 | returned, or NULL on OK. */ | |
3861 | ||
fecd2382 | 3862 | char * |
355afbcd KR |
3863 | md_atof (type, litP, sizeP) |
3864 | char type; | |
3865 | char *litP; | |
3866 | int *sizeP; | |
fecd2382 | 3867 | { |
355afbcd KR |
3868 | int prec; |
3869 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
3870 | LITTLENUM_TYPE *wordP; | |
3871 | char *t; | |
3872 | char *atof_ieee (); | |
6d27d3a2 | 3873 | |
355afbcd KR |
3874 | switch (type) |
3875 | { | |
3876 | case 'f': | |
3877 | case 'F': | |
3878 | case 's': | |
3879 | case 'S': | |
3880 | prec = 2; | |
3881 | break; | |
6d27d3a2 | 3882 | |
355afbcd KR |
3883 | case 'd': |
3884 | case 'D': | |
3885 | case 'r': | |
3886 | case 'R': | |
3887 | prec = 4; | |
3888 | break; | |
6d27d3a2 | 3889 | |
355afbcd KR |
3890 | case 'x': |
3891 | case 'X': | |
3892 | prec = 6; | |
3893 | break; | |
6d27d3a2 | 3894 | |
355afbcd KR |
3895 | case 'p': |
3896 | case 'P': | |
3897 | prec = 6; | |
3898 | break; | |
6d27d3a2 | 3899 | |
355afbcd KR |
3900 | default: |
3901 | *sizeP = 0; | |
3902 | return "Bad call to MD_ATOF()"; | |
3903 | } | |
3904 | t = atof_ieee (input_line_pointer, type, words); | |
3905 | if (t) | |
3906 | input_line_pointer = t; | |
3907 | ||
3908 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
3909 | for (wordP = words; prec--;) | |
3910 | { | |
3911 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
3912 | litP += sizeof (LITTLENUM_TYPE); | |
3913 | } | |
49864cfa | 3914 | return 0; |
fecd2382 RP |
3915 | } |
3916 | ||
fecd2382 | 3917 | void |
355afbcd KR |
3918 | md_number_to_chars (buf, val, n) |
3919 | char *buf; | |
025b0302 | 3920 | valueT val; |
355afbcd | 3921 | int n; |
fecd2382 | 3922 | { |
82489ea0 | 3923 | number_to_chars_bigendian (buf, val, n); |
fecd2382 RP |
3924 | } |
3925 | ||
49864cfa KR |
3926 | static void |
3927 | md_apply_fix_2 (fixP, val) | |
355afbcd | 3928 | fixS *fixP; |
9ad5755f | 3929 | offsetT val; |
fecd2382 | 3930 | { |
9ad5755f KR |
3931 | addressT upper_limit; |
3932 | offsetT lower_limit; | |
49864cfa | 3933 | |
9ad5755f KR |
3934 | /* This is unnecessary but it convinces the native rs6000 compiler |
3935 | to generate the code we want. */ | |
355afbcd KR |
3936 | char *buf = fixP->fx_frag->fr_literal; |
3937 | buf += fixP->fx_where; | |
9ad5755f KR |
3938 | /* end ibm compiler workaround */ |
3939 | ||
3940 | if (val & 0x80000000) | |
3941 | val |= ~(addressT)0x7fffffff; | |
3942 | else | |
3943 | val &= 0x7fffffff; | |
6d27d3a2 | 3944 | |
a043f579 ILT |
3945 | #ifdef OBJ_ELF |
3946 | if (fixP->fx_addsy) | |
3947 | { | |
3948 | memset (buf, 0, fixP->fx_size); | |
3949 | fixP->fx_addnumber = val; /* Remember value for emit_reloc */ | |
3950 | return; | |
3951 | } | |
3952 | #endif | |
3953 | ||
355afbcd KR |
3954 | switch (fixP->fx_size) |
3955 | { | |
b79de3a1 KR |
3956 | /* The cast to offsetT below are necessary to make code correct for |
3957 | machines where ints are smaller than offsetT */ | |
355afbcd KR |
3958 | case 1: |
3959 | *buf++ = val; | |
49864cfa | 3960 | upper_limit = 0x7f; |
b79de3a1 | 3961 | lower_limit = - (offsetT) 0x80; |
355afbcd KR |
3962 | break; |
3963 | case 2: | |
3964 | *buf++ = (val >> 8); | |
3965 | *buf++ = val; | |
49864cfa | 3966 | upper_limit = 0x7fff; |
b79de3a1 | 3967 | lower_limit = - (offsetT) 0x8000; |
355afbcd KR |
3968 | break; |
3969 | case 4: | |
3970 | *buf++ = (val >> 24); | |
3971 | *buf++ = (val >> 16); | |
3972 | *buf++ = (val >> 8); | |
3973 | *buf++ = val; | |
49864cfa | 3974 | upper_limit = 0x7fffffff; |
b79de3a1 | 3975 | lower_limit = - (offsetT) 0x7fffffff - 1; /* avoid constant overflow */ |
355afbcd KR |
3976 | break; |
3977 | default: | |
3978 | BAD_CASE (fixP->fx_size); | |
3979 | } | |
49864cfa | 3980 | |
3b06beb7 ILT |
3981 | /* Fix up a negative reloc. */ |
3982 | if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL) | |
3983 | { | |
3984 | fixP->fx_addsy = fixP->fx_subsy; | |
3985 | fixP->fx_subsy = NULL; | |
3986 | fixP->fx_tcbit = 1; | |
3987 | } | |
3988 | ||
49864cfa KR |
3989 | /* For non-pc-relative values, it's conceivable we might get something |
3990 | like "0xff" for a byte field. So extend the upper part of the range | |
3991 | to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", | |
3992 | so that we can do any range checking at all. */ | |
a78bc551 | 3993 | if (! fixP->fx_pcrel && ! fixP->fx_signed) |
49864cfa KR |
3994 | upper_limit = upper_limit * 2 + 1; |
3995 | ||
9ad5755f KR |
3996 | if ((addressT) val > upper_limit |
3997 | && (val > 0 || val < lower_limit)) | |
f3751617 ILT |
3998 | as_bad_where (fixP->fx_file, fixP->fx_line, "value out of range"); |
3999 | ||
4000 | /* A one byte PC-relative reloc means a short branch. We can't use | |
4001 | a short branch with a value of 0 or -1, because those indicate | |
4002 | different opcodes (branches with longer offsets). */ | |
4003 | if (fixP->fx_pcrel | |
4004 | && fixP->fx_size == 1 | |
4005 | && (fixP->fx_addsy == NULL | |
4006 | || S_IS_DEFINED (fixP->fx_addsy)) | |
4007 | && (val == 0 || val == -1)) | |
4008 | as_bad_where (fixP->fx_file, fixP->fx_line, "invalid byte branch offset"); | |
fecd2382 RP |
4009 | } |
4010 | ||
49864cfa KR |
4011 | #ifdef BFD_ASSEMBLER |
4012 | int | |
4013 | md_apply_fix (fixP, valp) | |
4014 | fixS *fixP; | |
5f8cb05e | 4015 | valueT *valp; |
49864cfa | 4016 | { |
9ad5755f | 4017 | md_apply_fix_2 (fixP, (addressT) *valp); |
49864cfa KR |
4018 | return 1; |
4019 | } | |
4020 | #else | |
4021 | void md_apply_fix (fixP, val) | |
4022 | fixS *fixP; | |
4023 | long val; | |
4024 | { | |
9ad5755f | 4025 | md_apply_fix_2 (fixP, (addressT) val); |
49864cfa KR |
4026 | } |
4027 | #endif | |
fecd2382 RP |
4028 | |
4029 | /* *fragP has been relaxed to its final size, and now needs to have | |
4030 | the bytes inside it modified to conform to the new size There is UGLY | |
4031 | MAGIC here. .. | |
a39116f1 | 4032 | */ |
fecd2382 | 4033 | void |
49864cfa | 4034 | md_convert_frag_1 (fragP) |
355afbcd | 4035 | register fragS *fragP; |
fecd2382 | 4036 | { |
355afbcd KR |
4037 | long disp; |
4038 | long ext = 0; | |
5f8cb05e | 4039 | fixS *fixP; |
6d27d3a2 | 4040 | |
355afbcd KR |
4041 | /* Address in object code of the displacement. */ |
4042 | register int object_address = fragP->fr_fix + fragP->fr_address; | |
6d27d3a2 | 4043 | |
9ad5755f KR |
4044 | /* Address in gas core of the place to store the displacement. */ |
4045 | /* This convinces the native rs6000 compiler to generate the code we | |
4046 | want. */ | |
355afbcd KR |
4047 | register char *buffer_address = fragP->fr_literal; |
4048 | buffer_address += fragP->fr_fix; | |
9ad5755f | 4049 | /* end ibm compiler workaround */ |
6d27d3a2 | 4050 | |
355afbcd KR |
4051 | /* The displacement of the address, from current location. */ |
4052 | disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0; | |
4053 | disp = (disp + fragP->fr_offset) - object_address; | |
6d27d3a2 | 4054 | |
5f8cb05e ILT |
4055 | #ifdef BFD_ASSEMBLER |
4056 | disp += fragP->fr_symbol->sy_frag->fr_address; | |
4057 | #endif | |
4058 | ||
355afbcd KR |
4059 | switch (fragP->fr_subtype) |
4060 | { | |
4061 | case TAB (BCC68000, BYTE): | |
4062 | case TAB (ABRANCH, BYTE): | |
4063 | know (issbyte (disp)); | |
4064 | if (disp == 0) | |
4065 | as_bad ("short branch with zero offset: use :w"); | |
4066 | fragP->fr_opcode[1] = disp; | |
4067 | ext = 0; | |
4068 | break; | |
4069 | case TAB (DBCC, SHORT): | |
4070 | know (issword (disp)); | |
4071 | ext = 2; | |
4072 | break; | |
4073 | case TAB (BCC68000, SHORT): | |
4074 | case TAB (ABRANCH, SHORT): | |
4075 | know (issword (disp)); | |
4076 | fragP->fr_opcode[1] = 0x00; | |
4077 | ext = 2; | |
4078 | break; | |
4079 | case TAB (ABRANCH, LONG): | |
ffecfc8b | 4080 | if (!HAVE_LONG_BRANCH(current_architecture)) |
355afbcd KR |
4081 | { |
4082 | if (fragP->fr_opcode[0] == 0x61) | |
04ef74bb | 4083 | /* BSR */ |
355afbcd KR |
4084 | { |
4085 | fragP->fr_opcode[0] = 0x4E; | |
bcb8dff8 | 4086 | fragP->fr_opcode[1] = (char) 0xB9; /* JBSR with ABSL LONG offset */ |
355afbcd KR |
4087 | |
4088 | fix_new (fragP, | |
4089 | fragP->fr_fix, | |
4090 | 4, | |
4091 | fragP->fr_symbol, | |
355afbcd KR |
4092 | fragP->fr_offset, |
4093 | 0, | |
4094 | NO_RELOC); | |
4095 | ||
4096 | fragP->fr_fix += 4; | |
4097 | ext = 0; | |
4098 | } | |
04ef74bb | 4099 | /* BRA */ |
355afbcd KR |
4100 | else if (fragP->fr_opcode[0] == 0x60) |
4101 | { | |
4102 | fragP->fr_opcode[0] = 0x4E; | |
bcb8dff8 | 4103 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG offset */ |
bcb8dff8 KR |
4104 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
4105 | fragP->fr_offset, 0, NO_RELOC); | |
355afbcd KR |
4106 | fragP->fr_fix += 4; |
4107 | ext = 0; | |
4108 | } | |
4109 | else | |
4110 | { | |
4111 | as_bad ("Long branch offset not supported."); | |
4112 | } | |
4113 | } | |
4114 | else | |
4115 | { | |
bcb8dff8 | 4116 | fragP->fr_opcode[1] = (char) 0xff; |
355afbcd KR |
4117 | ext = 4; |
4118 | } | |
4119 | break; | |
4120 | case TAB (BCC68000, LONG): | |
4121 | /* only Bcc 68000 instructions can come here */ | |
4122 | /* change bcc into b!cc/jmp absl long */ | |
4123 | fragP->fr_opcode[0] ^= 0x01; /* invert bcc */ | |
4124 | fragP->fr_opcode[1] = 0x6;/* branch offset = 6 */ | |
6d27d3a2 | 4125 | |
355afbcd | 4126 | /* JF: these used to be fr_opcode[2,3], but they may be in a |
fecd2382 RP |
4127 | different frag, in which case refering to them is a no-no. |
4128 | Only fr_opcode[0,1] are guaranteed to work. */ | |
355afbcd | 4129 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ |
bcb8dff8 | 4130 | *buffer_address++ = (char) 0xf9; |
355afbcd | 4131 | fragP->fr_fix += 2; /* account for jmp instruction */ |
bcb8dff8 KR |
4132 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
4133 | fragP->fr_offset, 0, NO_RELOC); | |
355afbcd KR |
4134 | fragP->fr_fix += 4; |
4135 | ext = 0; | |
4136 | break; | |
4137 | case TAB (DBCC, LONG): | |
4138 | /* only DBcc 68000 instructions can come here */ | |
4139 | /* change dbcc into dbcc/jmp absl long */ | |
4140 | /* JF: these used to be fr_opcode[2-7], but that's wrong */ | |
4141 | *buffer_address++ = 0x00; /* branch offset = 4 */ | |
4142 | *buffer_address++ = 0x04; | |
4143 | *buffer_address++ = 0x60; /* put in bra pc+6 */ | |
4144 | *buffer_address++ = 0x06; | |
4145 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ | |
bcb8dff8 | 4146 | *buffer_address++ = (char) 0xf9; |
355afbcd KR |
4147 | |
4148 | fragP->fr_fix += 6; /* account for bra/jmp instructions */ | |
bcb8dff8 | 4149 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
49864cfa | 4150 | fragP->fr_offset, 0, NO_RELOC); |
355afbcd KR |
4151 | fragP->fr_fix += 4; |
4152 | ext = 0; | |
4153 | break; | |
4154 | case TAB (FBRANCH, SHORT): | |
4155 | know ((fragP->fr_opcode[1] & 0x40) == 0); | |
4156 | ext = 2; | |
4157 | break; | |
4158 | case TAB (FBRANCH, LONG): | |
4159 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit */ | |
4160 | ext = 4; | |
4161 | break; | |
4162 | case TAB (PCREL, SHORT): | |
4163 | ext = 2; | |
4164 | break; | |
4165 | case TAB (PCREL, LONG): | |
4166 | /* The thing to do here is force it to ABSOLUTE LONG, since | |
f8701a3f | 4167 | PCREL is really trying to shorten an ABSOLUTE address anyway */ |
355afbcd | 4168 | /* JF FOO This code has not been tested */ |
bcb8dff8 | 4169 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
49864cfa | 4170 | 0, NO_RELOC); |
355afbcd | 4171 | if ((fragP->fr_opcode[1] & 0x3F) != 0x3A) |
bcb8dff8 KR |
4172 | as_bad ("Internal error (long PC-relative operand) for insn 0x%04x at 0x%lx", |
4173 | (unsigned) fragP->fr_opcode[0], | |
4174 | (unsigned long) fragP->fr_address); | |
355afbcd KR |
4175 | fragP->fr_opcode[1] &= ~0x3F; |
4176 | fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */ | |
4177 | fragP->fr_fix += 4; | |
355afbcd KR |
4178 | ext = 0; |
4179 | break; | |
4180 | case TAB (PCLEA, SHORT): | |
49864cfa | 4181 | fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, |
bcb8dff8 | 4182 | fragP->fr_offset, 1, NO_RELOC); |
355afbcd | 4183 | fragP->fr_opcode[1] &= ~0x3F; |
04ef74bb | 4184 | fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */ |
355afbcd KR |
4185 | ext = 2; |
4186 | break; | |
4187 | case TAB (PCLEA, LONG): | |
5f8cb05e ILT |
4188 | fixP = fix_new (fragP, (int) (fragP->fr_fix) + 2, 4, fragP->fr_symbol, |
4189 | fragP->fr_offset, 1, NO_RELOC); | |
4190 | fixP->fx_pcrel_adjust = 2; | |
04ef74bb KR |
4191 | /* Already set to mode 7.3; this indicates: PC indirect with |
4192 | suppressed index, 32-bit displacement. */ | |
355afbcd KR |
4193 | *buffer_address++ = 0x01; |
4194 | *buffer_address++ = 0x70; | |
4195 | fragP->fr_fix += 2; | |
355afbcd KR |
4196 | ext = 4; |
4197 | break; | |
04ef74bb KR |
4198 | |
4199 | case TAB (PCINDEX, BYTE): | |
4200 | disp += 2; | |
4201 | if (!issbyte (disp)) | |
4202 | { | |
4203 | as_bad ("displacement doesn't fit in one byte"); | |
4204 | disp = 0; | |
4205 | } | |
5f8cb05e ILT |
4206 | assert (fragP->fr_fix >= 2); |
4207 | buffer_address[-2] &= ~1; | |
4208 | buffer_address[-1] = disp; | |
04ef74bb KR |
4209 | ext = 0; |
4210 | break; | |
4211 | case TAB (PCINDEX, SHORT): | |
04ef74bb KR |
4212 | disp += 2; |
4213 | assert (issword (disp)); | |
5f8cb05e ILT |
4214 | assert (fragP->fr_fix >= 2); |
4215 | buffer_address[-2] |= 0x1; | |
4216 | buffer_address[-1] = 0x20; | |
4217 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, | |
4218 | fragP->fr_offset, (fragP->fr_opcode[1] & 077) == 073, | |
4219 | NO_RELOC); | |
4220 | fixP->fx_pcrel_adjust = 2; | |
04ef74bb KR |
4221 | ext = 2; |
4222 | break; | |
4223 | case TAB (PCINDEX, LONG): | |
04ef74bb | 4224 | disp += 2; |
5f8cb05e ILT |
4225 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
4226 | fragP->fr_offset, (fragP->fr_opcode[1] & 077) == 073, | |
4227 | NO_RELOC); | |
4228 | fixP->fx_pcrel_adjust = 2; | |
4229 | assert (fragP->fr_fix >= 2); | |
4230 | buffer_address[-2] |= 0x1; | |
4231 | buffer_address[-1] = 0x30; | |
04ef74bb KR |
4232 | ext = 4; |
4233 | break; | |
49864cfa | 4234 | } |
355afbcd KR |
4235 | |
4236 | if (ext) | |
4237 | { | |
4238 | md_number_to_chars (buffer_address, (long) disp, (int) ext); | |
4239 | fragP->fr_fix += ext; | |
49864cfa KR |
4240 | } |
4241 | } | |
355afbcd | 4242 | |
49864cfa KR |
4243 | #ifndef BFD_ASSEMBLER |
4244 | ||
4245 | void | |
064ba683 | 4246 | md_convert_frag (headers, sec, fragP) |
49864cfa | 4247 | object_headers *headers; |
064ba683 | 4248 | segT sec; |
49864cfa KR |
4249 | fragS *fragP; |
4250 | { | |
4251 | md_convert_frag_1 (fragP); | |
4252 | } | |
4253 | ||
4254 | #else | |
4255 | ||
4256 | void | |
4257 | md_convert_frag (abfd, sec, fragP) | |
4258 | bfd *abfd; | |
5f8cb05e | 4259 | segT sec; |
49864cfa KR |
4260 | fragS *fragP; |
4261 | { | |
4262 | md_convert_frag_1 (fragP); | |
4263 | } | |
4264 | #endif | |
355afbcd KR |
4265 | |
4266 | /* Force truly undefined symbols to their maximum size, and generally set up | |
4267 | the frag list to be relaxed | |
4268 | */ | |
4269 | int | |
4270 | md_estimate_size_before_relax (fragP, segment) | |
4271 | register fragS *fragP; | |
4272 | segT segment; | |
4273 | { | |
4274 | int old_fix; | |
4275 | register char *buffer_address = fragP->fr_fix + fragP->fr_literal; | |
4276 | ||
4277 | old_fix = fragP->fr_fix; | |
4278 | ||
4279 | /* handle SZ_UNDEF first, it can be changed to BYTE or SHORT */ | |
4280 | switch (fragP->fr_subtype) | |
4281 | { | |
4282 | ||
4283 | case TAB (ABRANCH, SZ_UNDEF): | |
4284 | { | |
4285 | if ((fragP->fr_symbol != NULL) /* Not absolute */ | |
4286 | && S_GET_SEGMENT (fragP->fr_symbol) == segment) | |
4287 | { | |
4288 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); | |
4289 | break; | |
4290 | } | |
ffecfc8b | 4291 | else if ((fragP->fr_symbol == 0) || !HAVE_LONG_BRANCH(current_architecture)) |
355afbcd KR |
4292 | { |
4293 | /* On 68000, or for absolute value, switch to abs long */ | |
4294 | /* FIXME, we should check abs val, pick short or long */ | |
4295 | if (fragP->fr_opcode[0] == 0x61) | |
4296 | { | |
4297 | fragP->fr_opcode[0] = 0x4E; | |
bcb8dff8 | 4298 | fragP->fr_opcode[1] = (char) 0xB9; /* JBSR with ABSL LONG offset */ |
355afbcd | 4299 | fix_new (fragP, fragP->fr_fix, 4, |
bcb8dff8 | 4300 | fragP->fr_symbol, fragP->fr_offset, 0, NO_RELOC); |
355afbcd KR |
4301 | fragP->fr_fix += 4; |
4302 | frag_wane (fragP); | |
4303 | } | |
4304 | else if (fragP->fr_opcode[0] == 0x60) | |
4305 | { | |
4306 | fragP->fr_opcode[0] = 0x4E; | |
bcb8dff8 | 4307 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG offset */ |
355afbcd | 4308 | fix_new (fragP, fragP->fr_fix, 4, |
bcb8dff8 | 4309 | fragP->fr_symbol, fragP->fr_offset, 0, NO_RELOC); |
355afbcd KR |
4310 | fragP->fr_fix += 4; |
4311 | frag_wane (fragP); | |
4312 | } | |
4313 | else | |
4314 | { | |
4315 | as_warn ("Long branch offset to extern symbol not supported."); | |
4316 | } | |
4317 | } | |
4318 | else | |
4319 | { /* Symbol is still undefined. Make it simple */ | |
4320 | fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, | |
5f8cb05e | 4321 | fragP->fr_offset, 1, NO_RELOC); |
355afbcd | 4322 | fragP->fr_fix += 4; |
bcb8dff8 | 4323 | fragP->fr_opcode[1] = (char) 0xff; |
355afbcd KR |
4324 | frag_wane (fragP); |
4325 | break; | |
4326 | } | |
4327 | ||
a39116f1 | 4328 | break; |
355afbcd | 4329 | } /* case TAB(ABRANCH,SZ_UNDEF) */ |
6d27d3a2 | 4330 | |
355afbcd KR |
4331 | case TAB (FBRANCH, SZ_UNDEF): |
4332 | { | |
9ad5755f | 4333 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment || flag_short_refs) |
355afbcd KR |
4334 | { |
4335 | fragP->fr_subtype = TAB (FBRANCH, SHORT); | |
4336 | fragP->fr_var += 2; | |
4337 | } | |
4338 | else | |
4339 | { | |
5f8cb05e ILT |
4340 | fix_new (fragP, (int) fragP->fr_fix, 4, fragP->fr_symbol, |
4341 | fragP->fr_offset, 1, NO_RELOC); | |
4342 | fragP->fr_fix += 4; | |
4343 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit */ | |
4344 | frag_wane (fragP); | |
355afbcd KR |
4345 | } |
4346 | break; | |
4347 | } /* TAB(FBRANCH,SZ_UNDEF) */ | |
6d27d3a2 | 4348 | |
355afbcd KR |
4349 | case TAB (PCREL, SZ_UNDEF): |
4350 | { | |
b79de3a1 KR |
4351 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4352 | || flag_short_refs | |
4353 | || cpu_of_arch (current_architecture) < m68020) | |
355afbcd KR |
4354 | { |
4355 | fragP->fr_subtype = TAB (PCREL, SHORT); | |
4356 | fragP->fr_var += 2; | |
4357 | } | |
4358 | else | |
4359 | { | |
4360 | fragP->fr_subtype = TAB (PCREL, LONG); | |
4361 | fragP->fr_var += 4; | |
4362 | } | |
4363 | break; | |
4364 | } /* TAB(PCREL,SZ_UNDEF) */ | |
6d27d3a2 | 4365 | |
355afbcd KR |
4366 | case TAB (BCC68000, SZ_UNDEF): |
4367 | { | |
4368 | if ((fragP->fr_symbol != NULL) | |
4369 | && S_GET_SEGMENT (fragP->fr_symbol) == segment) | |
4370 | { | |
4371 | fragP->fr_subtype = TAB (BCC68000, BYTE); | |
4372 | break; | |
4373 | } | |
4374 | /* only Bcc 68000 instructions can come here */ | |
4375 | /* change bcc into b!cc/jmp absl long */ | |
4376 | fragP->fr_opcode[0] ^= 0x01; /* invert bcc */ | |
9ad5755f | 4377 | if (flag_short_refs) |
355afbcd KR |
4378 | { |
4379 | fragP->fr_opcode[1] = 0x04; /* branch offset = 6 */ | |
4380 | /* JF: these were fr_opcode[2,3] */ | |
4381 | buffer_address[0] = 0x4e; /* put in jmp long (0x4ef9) */ | |
bcb8dff8 | 4382 | buffer_address[1] = (char) 0xf8; |
355afbcd | 4383 | fragP->fr_fix += 2; /* account for jmp instruction */ |
bcb8dff8 | 4384 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, |
355afbcd KR |
4385 | fragP->fr_offset, 0, NO_RELOC); |
4386 | fragP->fr_fix += 2; | |
4387 | } | |
4388 | else | |
4389 | { | |
4390 | fragP->fr_opcode[1] = 0x06; /* branch offset = 6 */ | |
4391 | /* JF: these were fr_opcode[2,3] */ | |
4392 | buffer_address[0] = 0x4e; /* put in jmp long (0x4ef9) */ | |
bcb8dff8 | 4393 | buffer_address[1] = (char) 0xf9; |
355afbcd | 4394 | fragP->fr_fix += 2; /* account for jmp instruction */ |
bcb8dff8 | 4395 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
355afbcd KR |
4396 | fragP->fr_offset, 0, NO_RELOC); |
4397 | fragP->fr_fix += 4; | |
4398 | } | |
4399 | frag_wane (fragP); | |
4400 | break; | |
4401 | } /* case TAB(BCC68000,SZ_UNDEF) */ | |
f8701a3f | 4402 | |
355afbcd KR |
4403 | case TAB (DBCC, SZ_UNDEF): |
4404 | { | |
4405 | if (fragP->fr_symbol != NULL && S_GET_SEGMENT (fragP->fr_symbol) == segment) | |
4406 | { | |
4407 | fragP->fr_subtype = TAB (DBCC, SHORT); | |
4408 | fragP->fr_var += 2; | |
4409 | break; | |
4410 | } | |
4411 | /* only DBcc 68000 instructions can come here */ | |
4412 | /* change dbcc into dbcc/jmp absl long */ | |
4413 | /* JF: these used to be fr_opcode[2-4], which is wrong. */ | |
4414 | buffer_address[0] = 0x00; /* branch offset = 4 */ | |
4415 | buffer_address[1] = 0x04; | |
4416 | buffer_address[2] = 0x60; /* put in bra pc + ... */ | |
4417 | ||
9ad5755f | 4418 | if (flag_short_refs) |
355afbcd KR |
4419 | { |
4420 | /* JF: these were fr_opcode[5-7] */ | |
4421 | buffer_address[3] = 0x04; /* plus 4 */ | |
4422 | buffer_address[4] = 0x4e; /* Put in Jump Word */ | |
bcb8dff8 | 4423 | buffer_address[5] = (char) 0xf8; |
355afbcd | 4424 | fragP->fr_fix += 6; /* account for bra/jmp instruction */ |
bcb8dff8 | 4425 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, |
355afbcd KR |
4426 | fragP->fr_offset, 0, NO_RELOC); |
4427 | fragP->fr_fix += 2; | |
4428 | } | |
4429 | else | |
4430 | { | |
4431 | /* JF: these were fr_opcode[5-7] */ | |
4432 | buffer_address[3] = 0x06; /* Plus 6 */ | |
4433 | buffer_address[4] = 0x4e; /* put in jmp long (0x4ef9) */ | |
bcb8dff8 | 4434 | buffer_address[5] = (char) 0xf9; |
355afbcd | 4435 | fragP->fr_fix += 6; /* account for bra/jmp instruction */ |
bcb8dff8 | 4436 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
355afbcd KR |
4437 | fragP->fr_offset, 0, NO_RELOC); |
4438 | fragP->fr_fix += 4; | |
4439 | } | |
6d27d3a2 | 4440 | |
355afbcd KR |
4441 | frag_wane (fragP); |
4442 | break; | |
4443 | } /* case TAB(DBCC,SZ_UNDEF) */ | |
6d27d3a2 | 4444 | |
355afbcd KR |
4445 | case TAB (PCLEA, SZ_UNDEF): |
4446 | { | |
b79de3a1 KR |
4447 | if ((S_GET_SEGMENT (fragP->fr_symbol)) == segment |
4448 | || flag_short_refs | |
4449 | || cpu_of_arch (current_architecture) < m68020) | |
355afbcd KR |
4450 | { |
4451 | fragP->fr_subtype = TAB (PCLEA, SHORT); | |
4452 | fragP->fr_var += 2; | |
4453 | } | |
4454 | else | |
4455 | { | |
4456 | fragP->fr_subtype = TAB (PCLEA, LONG); | |
4457 | fragP->fr_var += 6; | |
4458 | } | |
4459 | break; | |
4460 | } /* TAB(PCLEA,SZ_UNDEF) */ | |
6d27d3a2 | 4461 | |
04ef74bb KR |
4462 | case TAB (PCINDEX, SZ_UNDEF): |
4463 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment | |
4464 | || cpu_of_arch (current_architecture) < m68020) | |
4465 | { | |
4466 | fragP->fr_subtype = TAB (PCINDEX, BYTE); | |
4467 | } | |
4468 | else | |
4469 | { | |
4470 | fragP->fr_subtype = TAB (PCINDEX, LONG); | |
5f8cb05e | 4471 | fragP->fr_var += 4; |
04ef74bb | 4472 | } |
355afbcd | 4473 | break; |
6d27d3a2 | 4474 | |
04ef74bb KR |
4475 | default: |
4476 | break; | |
4477 | } | |
6d27d3a2 | 4478 | |
355afbcd KR |
4479 | /* now that SZ_UNDEF are taken care of, check others */ |
4480 | switch (fragP->fr_subtype) | |
4481 | { | |
4482 | case TAB (BCC68000, BYTE): | |
4483 | case TAB (ABRANCH, BYTE): | |
024e1779 ILT |
4484 | /* We can't do a short jump to the next instruction, so in that |
4485 | case we force word mode. At this point S_GET_VALUE should | |
4486 | return the offset of the symbol within its frag. If the | |
4487 | symbol is at the start of a frag, and it is the next frag | |
4488 | with any data in it (usually this is just the next frag, but | |
4489 | assembler listings may introduce empty frags), we must use | |
4490 | word mode. */ | |
65feb78d | 4491 | if (fragP->fr_symbol && S_GET_VALUE (fragP->fr_symbol) == 0) |
355afbcd | 4492 | { |
65feb78d ILT |
4493 | fragS *l; |
4494 | ||
4495 | for (l = fragP->fr_next; | |
4496 | l != fragP->fr_symbol->sy_frag; | |
4497 | l = l->fr_next) | |
4498 | if (l->fr_fix + l->fr_var != 0) | |
4499 | break; | |
4500 | if (l == fragP->fr_symbol->sy_frag) | |
4501 | { | |
4502 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
4503 | fragP->fr_var += 2; | |
4504 | } | |
fecd2382 | 4505 | } |
355afbcd KR |
4506 | break; |
4507 | default: | |
4508 | break; | |
4509 | } | |
4510 | return fragP->fr_var + fragP->fr_fix - old_fix; | |
fecd2382 RP |
4511 | } |
4512 | ||
4513 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
6d27d3a2 | 4514 | /* the bit-field entries in the relocation_info struct plays hell |
fecd2382 RP |
4515 | with the byte-order problems of cross-assembly. So as a hack, |
4516 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
4517 | you there. -KWK */ | |
4518 | /* on m68k: first 4 bytes are normal unsigned long, next three bytes | |
a39116f1 RP |
4519 | are symbolnum, most sig. byte first. Last byte is broken up with |
4520 | bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower | |
4521 | nibble as nuthin. (on Sun 3 at least) */ | |
fecd2382 RP |
4522 | /* Translate the internal relocation information into target-specific |
4523 | format. */ | |
a79c6033 | 4524 | #ifdef comment |
fecd2382 | 4525 | void |
355afbcd KR |
4526 | md_ri_to_chars (the_bytes, ri) |
4527 | char *the_bytes; | |
4528 | struct reloc_info_generic *ri; | |
fecd2382 | 4529 | { |
355afbcd KR |
4530 | /* this is easy */ |
4531 | md_number_to_chars (the_bytes, ri->r_address, 4); | |
4532 | /* now the fun stuff */ | |
4533 | the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff; | |
4534 | the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff; | |
4535 | the_bytes[6] = ri->r_symbolnum & 0x0ff; | |
4536 | the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) | ((ri->r_length << 5) & 0x60) | | |
4537 | ((ri->r_extern << 4) & 0x10)); | |
fecd2382 | 4538 | } |
355afbcd | 4539 | |
a79c6033 RP |
4540 | #endif /* comment */ |
4541 | ||
49864cfa | 4542 | #ifndef BFD_ASSEMBLER |
355afbcd KR |
4543 | void |
4544 | tc_aout_fix_to_chars (where, fixP, segment_address_in_file) | |
4545 | char *where; | |
4546 | fixS *fixP; | |
4547 | relax_addressT segment_address_in_file; | |
a79c6033 | 4548 | { |
355afbcd | 4549 | /* |
1404ef23 KR |
4550 | * In: length of relocation (or of address) in chars: 1, 2 or 4. |
4551 | * Out: GNU LD relocation length code: 0, 1, or 2. | |
4552 | */ | |
6d27d3a2 | 4553 | |
82489ea0 | 4554 | static CONST unsigned char nbytes_r_length[] = {42, 0, 1, 42, 2}; |
355afbcd | 4555 | long r_symbolnum; |
6d27d3a2 | 4556 | |
355afbcd | 4557 | know (fixP->fx_addsy != NULL); |
6d27d3a2 | 4558 | |
355afbcd KR |
4559 | md_number_to_chars (where, |
4560 | fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file, | |
4561 | 4); | |
6d27d3a2 | 4562 | |
355afbcd KR |
4563 | r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy) |
4564 | ? S_GET_TYPE (fixP->fx_addsy) | |
4565 | : fixP->fx_addsy->sy_number); | |
6d27d3a2 | 4566 | |
355afbcd KR |
4567 | where[4] = (r_symbolnum >> 16) & 0x0ff; |
4568 | where[5] = (r_symbolnum >> 8) & 0x0ff; | |
4569 | where[6] = r_symbolnum & 0x0ff; | |
4570 | where[7] = (((fixP->fx_pcrel << 7) & 0x80) | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) | | |
4571 | (((!S_IS_DEFINED (fixP->fx_addsy)) << 4) & 0x10)); | |
49864cfa KR |
4572 | } |
4573 | #endif | |
a79c6033 | 4574 | |
fecd2382 RP |
4575 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
4576 | ||
4577 | #ifndef WORKING_DOT_WORD | |
49864cfa KR |
4578 | CONST int md_short_jump_size = 4; |
4579 | CONST int md_long_jump_size = 6; | |
fecd2382 RP |
4580 | |
4581 | void | |
355afbcd KR |
4582 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) |
4583 | char *ptr; | |
025b0302 | 4584 | addressT from_addr, to_addr; |
355afbcd KR |
4585 | fragS *frag; |
4586 | symbolS *to_symbol; | |
fecd2382 | 4587 | { |
025b0302 | 4588 | valueT offset; |
6d27d3a2 | 4589 | |
355afbcd | 4590 | offset = to_addr - (from_addr + 2); |
6d27d3a2 | 4591 | |
025b0302 ME |
4592 | md_number_to_chars (ptr, (valueT) 0x6000, 2); |
4593 | md_number_to_chars (ptr + 2, (valueT) offset, 2); | |
fecd2382 RP |
4594 | } |
4595 | ||
4596 | void | |
355afbcd KR |
4597 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) |
4598 | char *ptr; | |
025b0302 | 4599 | addressT from_addr, to_addr; |
355afbcd KR |
4600 | fragS *frag; |
4601 | symbolS *to_symbol; | |
fecd2382 | 4602 | { |
025b0302 | 4603 | valueT offset; |
355afbcd | 4604 | |
ffecfc8b | 4605 | if (!HAVE_LONG_BRANCH(current_architecture)) |
355afbcd KR |
4606 | { |
4607 | offset = to_addr - S_GET_VALUE (to_symbol); | |
025b0302 ME |
4608 | md_number_to_chars (ptr, (valueT) 0x4EF9, 2); |
4609 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
bcb8dff8 KR |
4610 | fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0, |
4611 | 0, NO_RELOC); | |
355afbcd KR |
4612 | } |
4613 | else | |
4614 | { | |
4615 | offset = to_addr - (from_addr + 2); | |
025b0302 ME |
4616 | md_number_to_chars (ptr, (valueT) 0x60ff, 2); |
4617 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
355afbcd | 4618 | } |
fecd2382 RP |
4619 | } |
4620 | ||
4621 | #endif | |
a1c7c0f3 ILT |
4622 | |
4623 | /* Different values of OK tell what its OK to return. Things that | |
4624 | aren't OK are an error (what a shock, no?) | |
6d27d3a2 | 4625 | |
a39116f1 RP |
4626 | 0: Everything is OK |
4627 | 10: Absolute 1:8 only | |
4628 | 20: Absolute 0:7 only | |
4629 | 30: absolute 0:15 only | |
4630 | 40: Absolute 0:31 only | |
4631 | 50: absolute 0:127 only | |
4632 | 55: absolute -64:63 only | |
4633 | 60: absolute -128:127 only | |
4634 | 70: absolute 0:4095 only | |
4635 | 80: No bignums | |
6d27d3a2 | 4636 | |
a39116f1 | 4637 | */ |
fecd2382 | 4638 | |
355afbcd KR |
4639 | static int |
4640 | get_num (exp, ok) | |
4641 | struct m68k_exp *exp; | |
4642 | int ok; | |
fecd2382 | 4643 | { |
a1c7c0f3 | 4644 | if (exp->exp.X_op == O_absent) |
49864cfa | 4645 | { |
355afbcd | 4646 | /* Do the same thing the VAX asm does */ |
bcb8dff8 | 4647 | op (exp) = O_constant; |
355afbcd KR |
4648 | adds (exp) = 0; |
4649 | subs (exp) = 0; | |
4650 | offs (exp) = 0; | |
4651 | if (ok == 10) | |
4652 | { | |
4653 | as_warn ("expression out of range: defaulting to 1"); | |
4654 | offs (exp) = 1; | |
4655 | } | |
49864cfa | 4656 | } |
a1c7c0f3 | 4657 | else if (exp->exp.X_op == O_constant) |
49864cfa | 4658 | { |
355afbcd KR |
4659 | switch (ok) |
4660 | { | |
4661 | case 10: | |
4662 | if (offs (exp) < 1 || offs (exp) > 8) | |
4663 | { | |
4664 | as_warn ("expression out of range: defaulting to 1"); | |
4665 | offs (exp) = 1; | |
4666 | } | |
4667 | break; | |
4668 | case 20: | |
4669 | if (offs (exp) < 0 || offs (exp) > 7) | |
4670 | goto outrange; | |
4671 | break; | |
4672 | case 30: | |
4673 | if (offs (exp) < 0 || offs (exp) > 15) | |
4674 | goto outrange; | |
4675 | break; | |
4676 | case 40: | |
4677 | if (offs (exp) < 0 || offs (exp) > 32) | |
4678 | goto outrange; | |
4679 | break; | |
4680 | case 50: | |
4681 | if (offs (exp) < 0 || offs (exp) > 127) | |
4682 | goto outrange; | |
4683 | break; | |
4684 | case 55: | |
4685 | if (offs (exp) < -64 || offs (exp) > 63) | |
4686 | goto outrange; | |
4687 | break; | |
4688 | case 60: | |
4689 | if (offs (exp) < -128 || offs (exp) > 127) | |
4690 | goto outrange; | |
4691 | break; | |
4692 | case 70: | |
4693 | if (offs (exp) < 0 || offs (exp) > 4095) | |
4694 | { | |
4695 | outrange: | |
4696 | as_warn ("expression out of range: defaulting to 0"); | |
4697 | offs (exp) = 0; | |
4698 | } | |
4699 | break; | |
fecd2382 | 4700 | default: |
355afbcd KR |
4701 | break; |
4702 | } | |
49864cfa | 4703 | } |
a1c7c0f3 | 4704 | else if (exp->exp.X_op == O_big) |
49864cfa | 4705 | { |
bcb8dff8 | 4706 | if (offs (exp) <= 0 /* flonum */ |
355afbcd KR |
4707 | && (ok == 80 /* no bignums */ |
4708 | || (ok > 10 /* small-int ranges including 0 ok */ | |
1404ef23 KR |
4709 | /* If we have a flonum zero, a zero integer should |
4710 | do as well (e.g., in moveq). */ | |
355afbcd KR |
4711 | && generic_floating_point_number.exponent == 0 |
4712 | && generic_floating_point_number.low[0] == 0))) | |
4713 | { | |
4714 | /* HACK! Turn it into a long */ | |
4715 | LITTLENUM_TYPE words[6]; | |
4716 | ||
4717 | gen_to_words (words, 2, 8L); /* These numbers are magic! */ | |
bcb8dff8 | 4718 | op (exp) = O_constant; |
355afbcd KR |
4719 | adds (exp) = 0; |
4720 | subs (exp) = 0; | |
4721 | offs (exp) = words[1] | (words[0] << 16); | |
4722 | } | |
4723 | else if (ok != 0) | |
4724 | { | |
bcb8dff8 | 4725 | op (exp) = O_constant; |
355afbcd KR |
4726 | adds (exp) = 0; |
4727 | subs (exp) = 0; | |
4728 | offs (exp) = (ok == 10) ? 1 : 0; | |
a1c7c0f3 ILT |
4729 | as_warn ("Can't deal with expression; defaulting to %ld", |
4730 | offs (exp)); | |
355afbcd | 4731 | } |
49864cfa KR |
4732 | } |
4733 | else | |
4734 | { | |
355afbcd KR |
4735 | if (ok >= 10 && ok <= 70) |
4736 | { | |
bcb8dff8 | 4737 | op (exp) = O_constant; |
355afbcd KR |
4738 | adds (exp) = 0; |
4739 | subs (exp) = 0; | |
4740 | offs (exp) = (ok == 10) ? 1 : 0; | |
a1c7c0f3 ILT |
4741 | as_warn ("Can't deal with expression; defaulting to %ld", |
4742 | offs (exp)); | |
355afbcd | 4743 | } |
355afbcd | 4744 | } |
49864cfa | 4745 | |
a1c7c0f3 | 4746 | if (exp->size != SIZE_UNSPEC) |
355afbcd | 4747 | { |
a1c7c0f3 | 4748 | switch (exp->size) |
355afbcd | 4749 | { |
a1c7c0f3 ILT |
4750 | case SIZE_UNSPEC: |
4751 | case SIZE_LONG: | |
4752 | break; | |
4753 | case SIZE_BYTE: | |
355afbcd KR |
4754 | if (!isbyte (offs (exp))) |
4755 | as_warn ("expression doesn't fit in BYTE"); | |
4756 | break; | |
a1c7c0f3 | 4757 | case SIZE_WORD: |
355afbcd KR |
4758 | if (!isword (offs (exp))) |
4759 | as_warn ("expression doesn't fit in WORD"); | |
4760 | break; | |
a39116f1 | 4761 | } |
355afbcd | 4762 | } |
a1c7c0f3 | 4763 | |
355afbcd | 4764 | return offs (exp); |
49864cfa | 4765 | } |
fecd2382 RP |
4766 | |
4767 | /* These are the back-ends for the various machine dependent pseudo-ops. */ | |
355afbcd | 4768 | void demand_empty_rest_of_line (); /* Hate those extra verbose names */ |
fecd2382 | 4769 | |
355afbcd | 4770 | static void |
bcb8dff8 KR |
4771 | s_data1 (ignore) |
4772 | int ignore; | |
355afbcd | 4773 | { |
bcb8dff8 | 4774 | subseg_set (data_section, 1); |
355afbcd | 4775 | demand_empty_rest_of_line (); |
49864cfa | 4776 | } |
fecd2382 | 4777 | |
355afbcd | 4778 | static void |
bcb8dff8 KR |
4779 | s_data2 (ignore) |
4780 | int ignore; | |
355afbcd | 4781 | { |
bcb8dff8 | 4782 | subseg_set (data_section, 2); |
355afbcd | 4783 | demand_empty_rest_of_line (); |
49864cfa | 4784 | } |
fecd2382 | 4785 | |
355afbcd | 4786 | static void |
bcb8dff8 KR |
4787 | s_bss (ignore) |
4788 | int ignore; | |
a1765cf0 | 4789 | { |
355afbcd | 4790 | /* We don't support putting frags in the BSS segment, we fake it |
49864cfa | 4791 | by marking in_bss, then looking at s_skip for clues. */ |
a1765cf0 | 4792 | |
bcb8dff8 | 4793 | subseg_set (bss_section, 0); |
355afbcd | 4794 | demand_empty_rest_of_line (); |
49864cfa | 4795 | } |
6d27d3a2 | 4796 | |
355afbcd | 4797 | static void |
bcb8dff8 KR |
4798 | s_even (ignore) |
4799 | int ignore; | |
355afbcd KR |
4800 | { |
4801 | register int temp; | |
4802 | register long temp_fill; | |
4803 | ||
4804 | temp = 1; /* JF should be 2? */ | |
4805 | temp_fill = get_absolute_expression (); | |
4806 | if (!need_pass_2) /* Never make frag if expect extra pass. */ | |
4807 | frag_align (temp, (int) temp_fill); | |
4808 | demand_empty_rest_of_line (); | |
79811f6f | 4809 | record_alignment (now_seg, temp); |
49864cfa | 4810 | } |
355afbcd KR |
4811 | |
4812 | static void | |
bcb8dff8 KR |
4813 | s_proc (ignore) |
4814 | int ignore; | |
355afbcd KR |
4815 | { |
4816 | demand_empty_rest_of_line (); | |
49864cfa | 4817 | } |
e9bb39b4 ILT |
4818 | \f |
4819 | /* Pseudo-ops handled for MRI compatibility. */ | |
4820 | ||
a986926b ILT |
4821 | /* This function returns non-zero if the argument is a conditional |
4822 | pseudo-op. This is called when checking whether a pending | |
4823 | alignment is needed. */ | |
4824 | ||
4825 | int | |
4826 | m68k_conditional_pseudoop (pop) | |
4827 | pseudo_typeS *pop; | |
4828 | { | |
4829 | return (pop->poc_handler == s_mri_if | |
4830 | || pop->poc_handler == s_mri_else); | |
4831 | } | |
4832 | ||
e9bb39b4 | 4833 | /* Handle an MRI style chip specification. */ |
fecd2382 | 4834 | |
e9bb39b4 ILT |
4835 | static void |
4836 | mri_chip () | |
4837 | { | |
4838 | char *s; | |
4839 | char c; | |
4840 | int i; | |
4841 | ||
4842 | s = input_line_pointer; | |
4843 | c = get_symbol_end (); | |
4844 | for (i = 0; i < n_archs; i++) | |
4845 | if (strcasecmp (s, archs[i].name) == 0) | |
4846 | break; | |
4847 | if (i >= n_archs) | |
4848 | { | |
4849 | as_bad ("%s: unrecognized processor name", s); | |
4850 | *input_line_pointer = c; | |
4851 | ignore_rest_of_line (); | |
4852 | return; | |
4853 | } | |
4854 | *input_line_pointer = c; | |
fecd2382 | 4855 | |
e9bb39b4 ILT |
4856 | if (*input_line_pointer == '/') |
4857 | current_architecture = 0; | |
4858 | else | |
4859 | current_architecture &= m68881 | m68851; | |
4860 | current_architecture |= archs[i].arch; | |
4861 | ||
4862 | while (*input_line_pointer == '/') | |
4863 | { | |
4864 | ++input_line_pointer; | |
4865 | s = input_line_pointer; | |
4866 | c = get_symbol_end (); | |
4867 | if (strcmp (s, "68881") == 0) | |
4868 | current_architecture |= m68881; | |
4869 | else if (strcmp (s, "68851") == 0) | |
4870 | current_architecture |= m68851; | |
4871 | *input_line_pointer = c; | |
4872 | } | |
b4d51f3d ILT |
4873 | |
4874 | /* Update info about available control registers. */ | |
4875 | select_control_regs (); | |
e9bb39b4 ILT |
4876 | } |
4877 | ||
4878 | /* The MRI CHIP pseudo-op. */ | |
4879 | ||
4880 | static void | |
4881 | s_chip (ignore) | |
4882 | int ignore; | |
4883 | { | |
f9680a05 ILT |
4884 | char *stop = NULL; |
4885 | char stopc; | |
4886 | ||
4887 | if (flag_mri) | |
4888 | stop = mri_comment_field (&stopc); | |
e9bb39b4 | 4889 | mri_chip (); |
f9680a05 ILT |
4890 | if (flag_mri) |
4891 | mri_comment_end (stop, stopc); | |
e9bb39b4 ILT |
4892 | demand_empty_rest_of_line (); |
4893 | } | |
27a53b88 ILT |
4894 | |
4895 | /* The MRI FOPT pseudo-op. */ | |
4896 | ||
4897 | static void | |
4898 | s_fopt (ignore) | |
4899 | int ignore; | |
4900 | { | |
4901 | SKIP_WHITESPACE (); | |
4902 | ||
4903 | if (strncasecmp (input_line_pointer, "ID=", 3) == 0) | |
4904 | { | |
4905 | int temp; | |
4906 | ||
4907 | input_line_pointer += 3; | |
4908 | temp = get_absolute_expression (); | |
4909 | if (temp < 0 || temp > 7) | |
4910 | as_bad ("bad coprocessor id"); | |
4911 | else | |
4912 | m68k_float_copnum = COP0 + temp; | |
4913 | } | |
4914 | else | |
4915 | { | |
4916 | as_bad ("unrecognized fopt option"); | |
4917 | ignore_rest_of_line (); | |
4918 | return; | |
4919 | } | |
4920 | ||
4921 | demand_empty_rest_of_line (); | |
4922 | } | |
6700d36e ILT |
4923 | |
4924 | /* The structure used to handle the MRI OPT pseudo-op. */ | |
4925 | ||
4926 | struct opt_action | |
4927 | { | |
4928 | /* The name of the option. */ | |
4929 | const char *name; | |
4930 | ||
4931 | /* If this is not NULL, just call this function. The first argument | |
4932 | is the ARG field of this structure, the second argument is | |
4933 | whether the option was negated. */ | |
4934 | void (*pfn) PARAMS ((int arg, int on)); | |
4935 | ||
4936 | /* If this is not NULL, and the PFN field is NULL, set the variable | |
4937 | this points to. Set it to the ARG field if the option was not | |
4938 | negated, and the NOTARG field otherwise. */ | |
4939 | int *pvar; | |
4940 | ||
4941 | /* The value to pass to PFN or to assign to *PVAR. */ | |
4942 | int arg; | |
4943 | ||
4944 | /* The value to assign to *PVAR if the option is negated. If PFN is | |
4945 | NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then | |
4946 | the option may not be negated. */ | |
4947 | int notarg; | |
4948 | }; | |
4949 | ||
4950 | /* The table used to handle the MRI OPT pseudo-op. */ | |
4951 | ||
4952 | static void skip_to_comma PARAMS ((int, int)); | |
7e047ac2 | 4953 | static void opt_nest PARAMS ((int, int)); |
6700d36e ILT |
4954 | static void opt_chip PARAMS ((int, int)); |
4955 | static void opt_list PARAMS ((int, int)); | |
4956 | static void opt_list_symbols PARAMS ((int, int)); | |
4957 | ||
4958 | static const struct opt_action opt_table[] = | |
4959 | { | |
4960 | { "abspcadd", 0, &m68k_abspcadd, 1, 0 }, | |
4961 | ||
4962 | /* We do relaxing, so there is little use for these options. */ | |
4963 | { "b", 0, 0, 0, 0 }, | |
4964 | { "brs", 0, 0, 0, 0 }, | |
4965 | { "brb", 0, 0, 0, 0 }, | |
4966 | { "brl", 0, 0, 0, 0 }, | |
4967 | { "brw", 0, 0, 0, 0 }, | |
4968 | ||
4969 | { "c", 0, 0, 0, 0 }, | |
4970 | { "cex", 0, 0, 0, 0 }, | |
4971 | { "case", 0, &symbols_case_sensitive, 1, 0 }, | |
4972 | { "cl", 0, 0, 0, 0 }, | |
4973 | { "cre", 0, 0, 0, 0 }, | |
4974 | { "d", 0, &flag_keep_locals, 1, 0 }, | |
4975 | { "e", 0, 0, 0, 0 }, | |
4976 | { "f", 0, &flag_short_refs, 1, 0 }, | |
4977 | { "frs", 0, &flag_short_refs, 1, 0 }, | |
4978 | { "frl", 0, &flag_short_refs, 0, 1 }, | |
4979 | { "g", 0, 0, 0, 0 }, | |
4980 | { "i", 0, 0, 0, 0 }, | |
4981 | { "m", 0, 0, 0, 0 }, | |
4982 | { "mex", 0, 0, 0, 0 }, | |
4983 | { "mc", 0, 0, 0, 0 }, | |
4984 | { "md", 0, 0, 0, 0 }, | |
7e047ac2 | 4985 | { "nest", opt_nest, 0, 0, 0 }, |
6700d36e ILT |
4986 | { "next", skip_to_comma, 0, 0, 0 }, |
4987 | { "o", 0, 0, 0, 0 }, | |
4988 | { "old", 0, 0, 0, 0 }, | |
4989 | { "op", skip_to_comma, 0, 0, 0 }, | |
4990 | { "pco", 0, 0, 0, 0 }, | |
4991 | { "p", opt_chip, 0, 0, 0 }, | |
4992 | { "pcr", 0, 0, 0, 0 }, | |
4993 | { "pcs", 0, 0, 0, 0 }, | |
4994 | { "r", 0, 0, 0, 0 }, | |
4995 | { "quick", 0, &m68k_quick, 1, 0 }, | |
4996 | { "rel32", 0, &m68k_rel32, 1, 0 }, | |
4997 | { "s", opt_list, 0, 0, 0 }, | |
4998 | { "t", opt_list_symbols, 0, 0, 0 }, | |
4999 | { "w", 0, &flag_no_warnings, 0, 1 }, | |
5000 | { "x", 0, 0, 0, 0 } | |
5001 | }; | |
5002 | ||
5003 | #define OPTCOUNT (sizeof opt_table / sizeof opt_table[0]) | |
5004 | ||
5005 | /* The MRI OPT pseudo-op. */ | |
5006 | ||
5007 | static void | |
5008 | s_opt (ignore) | |
5009 | int ignore; | |
5010 | { | |
5011 | do | |
5012 | { | |
5013 | int t; | |
5014 | char *s; | |
5015 | char c; | |
5016 | int i; | |
5017 | const struct opt_action *o; | |
5018 | ||
5019 | SKIP_WHITESPACE (); | |
5020 | ||
5021 | t = 1; | |
5022 | if (*input_line_pointer == '-') | |
5023 | { | |
5024 | ++input_line_pointer; | |
5025 | t = 0; | |
5026 | } | |
5027 | else if (strncasecmp (input_line_pointer, "NO", 2) == 0) | |
5028 | { | |
5029 | input_line_pointer += 2; | |
5030 | t = 0; | |
5031 | } | |
5032 | ||
5033 | s = input_line_pointer; | |
5034 | c = get_symbol_end (); | |
5035 | ||
5036 | for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++) | |
5037 | { | |
5038 | if (strcasecmp (s, o->name) == 0) | |
5039 | { | |
5040 | if (o->pfn) | |
5041 | { | |
5042 | /* Restore input_line_pointer now in case the option | |
5043 | takes arguments. */ | |
5044 | *input_line_pointer = c; | |
5045 | (*o->pfn) (o->arg, t); | |
5046 | } | |
5047 | else if (o->pvar != NULL) | |
5048 | { | |
5049 | if (! t && o->arg == o->notarg) | |
5050 | as_bad ("option `%s' may not be negated", s); | |
5051 | *input_line_pointer = c; | |
5052 | *o->pvar = t ? o->arg : o->notarg; | |
5053 | } | |
9bef2324 ILT |
5054 | else |
5055 | *input_line_pointer = c; | |
6700d36e ILT |
5056 | break; |
5057 | } | |
5058 | } | |
5059 | if (i >= OPTCOUNT) | |
5060 | { | |
5061 | as_bad ("option `%s' not recognized", s); | |
5062 | *input_line_pointer = c; | |
5063 | } | |
5064 | } | |
5065 | while (*input_line_pointer++ == ','); | |
5066 | ||
5067 | /* Move back to terminating character. */ | |
5068 | --input_line_pointer; | |
5069 | demand_empty_rest_of_line (); | |
5070 | } | |
5071 | ||
5072 | /* Skip ahead to a comma. This is used for OPT options which we do | |
5073 | not suppor tand which take arguments. */ | |
5074 | ||
5075 | static void | |
5076 | skip_to_comma (arg, on) | |
5077 | int arg; | |
5078 | int on; | |
5079 | { | |
5080 | while (*input_line_pointer != ',' | |
5081 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5082 | ++input_line_pointer; | |
5083 | } | |
5084 | ||
7e047ac2 ILT |
5085 | /* Handle the OPT NEST=depth option. */ |
5086 | ||
5087 | static void | |
5088 | opt_nest (arg, on) | |
5089 | int arg; | |
5090 | int on; | |
5091 | { | |
5092 | if (*input_line_pointer != '=') | |
5093 | { | |
5094 | as_bad ("bad format of OPT NEST=depth"); | |
5095 | return; | |
5096 | } | |
5097 | ||
5098 | ++input_line_pointer; | |
5099 | max_macro_nest = get_absolute_expression (); | |
5100 | } | |
5101 | ||
6700d36e ILT |
5102 | /* Handle the OPT P=chip option. */ |
5103 | ||
5104 | static void | |
5105 | opt_chip (arg, on) | |
5106 | int arg; | |
5107 | int on; | |
5108 | { | |
5109 | if (*input_line_pointer != '=') | |
5110 | { | |
5111 | /* This is just OPT P, which we do not support. */ | |
5112 | return; | |
5113 | } | |
5114 | ||
5115 | ++input_line_pointer; | |
5116 | mri_chip (); | |
5117 | } | |
5118 | ||
5119 | /* Handle the OPT S option. */ | |
5120 | ||
5121 | static void | |
5122 | opt_list (arg, on) | |
5123 | int arg; | |
5124 | int on; | |
5125 | { | |
5126 | listing_list (on); | |
5127 | } | |
5128 | ||
5129 | /* Handle the OPT T option. */ | |
5130 | ||
5131 | static void | |
5132 | opt_list_symbols (arg, on) | |
5133 | int arg; | |
5134 | int on; | |
5135 | { | |
5136 | if (on) | |
5137 | listing |= LISTING_SYMBOLS; | |
5138 | else | |
5139 | listing &=~ LISTING_SYMBOLS; | |
5140 | } | |
5141 | ||
5142 | /* Handle the MRI REG pseudo-op. */ | |
5143 | ||
5144 | static void | |
5145 | s_reg (ignore) | |
5146 | int ignore; | |
5147 | { | |
5148 | char *s; | |
5149 | int c; | |
8e11ad0a | 5150 | struct m68k_op rop; |
6700d36e | 5151 | unsigned long mask; |
f9680a05 ILT |
5152 | char *stop = NULL; |
5153 | char stopc; | |
6700d36e | 5154 | |
7e047ac2 | 5155 | if (line_label == NULL) |
6700d36e ILT |
5156 | { |
5157 | as_bad ("missing label"); | |
5158 | ignore_rest_of_line (); | |
5159 | return; | |
5160 | } | |
5161 | ||
f9680a05 ILT |
5162 | if (flag_mri) |
5163 | stop = mri_comment_field (&stopc); | |
5164 | ||
6700d36e ILT |
5165 | SKIP_WHITESPACE (); |
5166 | ||
5167 | s = input_line_pointer; | |
5168 | while (isalnum ((unsigned char) *input_line_pointer) | |
5169 | #ifdef REGISTER_PREFIX | |
5170 | || *input_line_pointer == REGISTER_PREFIX | |
5171 | #endif | |
5172 | || *input_line_pointer == '/' | |
5173 | || *input_line_pointer == '-') | |
5174 | ++input_line_pointer; | |
5175 | c = *input_line_pointer; | |
5176 | *input_line_pointer = '\0'; | |
5177 | ||
8e11ad0a | 5178 | if (m68k_ip_op (s, &rop) != 0) |
6700d36e | 5179 | { |
8e11ad0a | 5180 | if (rop.error == NULL) |
6700d36e ILT |
5181 | as_bad ("bad register list"); |
5182 | else | |
8e11ad0a | 5183 | as_bad ("bad register list: %s", rop.error); |
6700d36e ILT |
5184 | *input_line_pointer = c; |
5185 | ignore_rest_of_line (); | |
5186 | return; | |
5187 | } | |
5188 | ||
5189 | *input_line_pointer = c; | |
5190 | ||
8e11ad0a ILT |
5191 | if (rop.mode == REGLST) |
5192 | mask = rop.mask; | |
5193 | else if (rop.mode == DREG) | |
5194 | mask = 1 << (rop.reg - DATA0); | |
5195 | else if (rop.mode == AREG) | |
5196 | mask = 1 << (rop.reg - ADDR0 + 8); | |
5197 | else if (rop.mode == FPREG) | |
5198 | mask = 1 << (rop.reg - FP0 + 16); | |
5199 | else if (rop.mode == CONTROL | |
5200 | && rop.reg == FPI) | |
6700d36e | 5201 | mask = 1 << 24; |
8e11ad0a ILT |
5202 | else if (rop.mode == CONTROL |
5203 | && rop.reg == FPS) | |
6700d36e | 5204 | mask = 1 << 25; |
8e11ad0a ILT |
5205 | else if (rop.mode == CONTROL |
5206 | && rop.reg == FPC) | |
6700d36e ILT |
5207 | mask = 1 << 26; |
5208 | else | |
5209 | { | |
5210 | as_bad ("bad register list"); | |
5211 | ignore_rest_of_line (); | |
5212 | return; | |
5213 | } | |
5214 | ||
7e047ac2 ILT |
5215 | S_SET_SEGMENT (line_label, absolute_section); |
5216 | S_SET_VALUE (line_label, mask); | |
5217 | line_label->sy_frag = &zero_address_frag; | |
6700d36e | 5218 | |
85f34122 | 5219 | if (flag_mri) |
f9680a05 | 5220 | mri_comment_end (stop, stopc); |
85f34122 | 5221 | |
6700d36e ILT |
5222 | demand_empty_rest_of_line (); |
5223 | } | |
e14994d9 ILT |
5224 | |
5225 | /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */ | |
5226 | ||
5227 | struct save_opts | |
5228 | { | |
5229 | struct save_opts *next; | |
5230 | int abspcadd; | |
5231 | int symbols_case_sensitive; | |
5232 | int keep_locals; | |
5233 | int short_refs; | |
5234 | int architecture; | |
5235 | int quick; | |
5236 | int rel32; | |
5237 | int listing; | |
5238 | int no_warnings; | |
5239 | /* FIXME: We don't save OPT S. */ | |
5240 | }; | |
5241 | ||
5242 | /* This variable holds the stack of saved options. */ | |
5243 | ||
5244 | static struct save_opts *save_stack; | |
5245 | ||
5246 | /* The MRI SAVE pseudo-op. */ | |
5247 | ||
5248 | static void | |
5249 | s_save (ignore) | |
5250 | int ignore; | |
5251 | { | |
5252 | struct save_opts *s; | |
5253 | ||
5254 | s = (struct save_opts *) xmalloc (sizeof (struct save_opts)); | |
5255 | s->abspcadd = m68k_abspcadd; | |
5256 | s->symbols_case_sensitive = symbols_case_sensitive; | |
5257 | s->keep_locals = flag_keep_locals; | |
5258 | s->short_refs = flag_short_refs; | |
5259 | s->architecture = current_architecture; | |
5260 | s->quick = m68k_quick; | |
5261 | s->rel32 = m68k_rel32; | |
5262 | s->listing = listing; | |
5263 | s->no_warnings = flag_no_warnings; | |
5264 | ||
5265 | s->next = save_stack; | |
5266 | save_stack = s; | |
5267 | ||
5268 | demand_empty_rest_of_line (); | |
5269 | } | |
5270 | ||
5271 | /* The MRI RESTORE pseudo-op. */ | |
5272 | ||
5273 | static void | |
5274 | s_restore (ignore) | |
5275 | int ignore; | |
5276 | { | |
5277 | struct save_opts *s; | |
5278 | ||
5279 | if (save_stack == NULL) | |
5280 | { | |
5281 | as_bad ("restore without save"); | |
5282 | ignore_rest_of_line (); | |
5283 | return; | |
5284 | } | |
5285 | ||
5286 | s = save_stack; | |
5287 | save_stack = s->next; | |
5288 | ||
5289 | m68k_abspcadd = s->abspcadd; | |
5290 | symbols_case_sensitive = s->symbols_case_sensitive; | |
5291 | flag_keep_locals = s->keep_locals; | |
5292 | flag_short_refs = s->short_refs; | |
5293 | current_architecture = s->architecture; | |
5294 | m68k_quick = s->quick; | |
5295 | m68k_rel32 = s->rel32; | |
5296 | listing = s->listing; | |
5297 | flag_no_warnings = s->no_warnings; | |
5298 | ||
5299 | free (s); | |
5300 | ||
5301 | demand_empty_rest_of_line (); | |
5302 | } | |
b4ec75e0 ILT |
5303 | |
5304 | /* Types of MRI structured control directives. */ | |
5305 | ||
5306 | enum mri_control_type | |
5307 | { | |
5308 | mri_for, | |
5309 | mri_if, | |
5310 | mri_repeat, | |
5311 | mri_while | |
5312 | }; | |
5313 | ||
5314 | /* This structure is used to stack the MRI structured control | |
5315 | directives. */ | |
5316 | ||
5317 | struct mri_control_info | |
5318 | { | |
5319 | /* The directive within which this one is enclosed. */ | |
5320 | struct mri_control_info *outer; | |
5321 | ||
5322 | /* The type of directive. */ | |
5323 | enum mri_control_type type; | |
5324 | ||
5325 | /* Whether an ELSE has been in an IF. */ | |
5326 | int else_seen; | |
5327 | ||
5328 | /* The add or sub statement at the end of a FOR. */ | |
5329 | char *incr; | |
5330 | ||
5331 | /* The label of the top of a FOR or REPEAT loop. */ | |
5332 | char *top; | |
5333 | ||
5334 | /* The label to jump to for the next iteration, or the else | |
5335 | expression of a conditional. */ | |
5336 | char *next; | |
5337 | ||
5338 | /* The label to jump to to break out of the loop, or the label past | |
5339 | the end of a conditional. */ | |
5340 | char *bottom; | |
5341 | }; | |
5342 | ||
5343 | /* The stack of MRI structured control directives. */ | |
5344 | ||
5345 | static struct mri_control_info *mri_control_stack; | |
5346 | ||
5347 | /* The current MRI structured control directive index number, used to | |
5348 | generate label names. */ | |
5349 | ||
5350 | static int mri_control_index; | |
5351 | ||
5352 | /* Some function prototypes. */ | |
5353 | ||
5354 | static char *mri_control_label PARAMS ((void)); | |
5355 | static struct mri_control_info *push_mri_control | |
5356 | PARAMS ((enum mri_control_type)); | |
5357 | static void pop_mri_control PARAMS ((void)); | |
5358 | static int parse_mri_condition PARAMS ((int *)); | |
5359 | static int parse_mri_control_operand | |
e1c0287d | 5360 | PARAMS ((int *, char **, char **, char **, char **)); |
b4ec75e0 ILT |
5361 | static int swap_mri_condition PARAMS ((int)); |
5362 | static int reverse_mri_condition PARAMS ((int)); | |
5363 | static void build_mri_control_operand | |
e1c0287d ILT |
5364 | PARAMS ((int, int, char *, char *, char *, char *, const char *, |
5365 | const char *, int)); | |
b4ec75e0 ILT |
5366 | static void parse_mri_control_expression |
5367 | PARAMS ((char *, int, const char *, const char *, int)); | |
5368 | ||
5369 | /* Generate a new MRI label structured control directive label name. */ | |
5370 | ||
5371 | static char * | |
5372 | mri_control_label () | |
5373 | { | |
5374 | char *n; | |
5375 | ||
5376 | n = (char *) xmalloc (20); | |
5377 | sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index); | |
5378 | ++mri_control_index; | |
5379 | return n; | |
5380 | } | |
5381 | ||
5382 | /* Create a new MRI structured control directive. */ | |
5383 | ||
5384 | static struct mri_control_info * | |
5385 | push_mri_control (type) | |
5386 | enum mri_control_type type; | |
5387 | { | |
5388 | struct mri_control_info *n; | |
5389 | ||
5390 | n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info)); | |
5391 | ||
5392 | n->type = type; | |
5393 | n->else_seen = 0; | |
5394 | if (type == mri_if || type == mri_while) | |
5395 | n->top = NULL; | |
5396 | else | |
5397 | n->top = mri_control_label (); | |
5398 | n->next = mri_control_label (); | |
5399 | n->bottom = mri_control_label (); | |
5400 | ||
5401 | n->outer = mri_control_stack; | |
5402 | mri_control_stack = n; | |
5403 | ||
5404 | return n; | |
5405 | } | |
5406 | ||
5407 | /* Pop off the stack of MRI structured control directives. */ | |
5408 | ||
5409 | static void | |
5410 | pop_mri_control () | |
5411 | { | |
5412 | struct mri_control_info *n; | |
5413 | ||
5414 | n = mri_control_stack; | |
5415 | mri_control_stack = n->outer; | |
5416 | if (n->top != NULL) | |
5417 | free (n->top); | |
5418 | free (n->next); | |
5419 | free (n->bottom); | |
5420 | free (n); | |
5421 | } | |
5422 | ||
5423 | /* Recognize a condition code in an MRI structured control expression. */ | |
5424 | ||
5425 | static int | |
5426 | parse_mri_condition (pcc) | |
5427 | int *pcc; | |
5428 | { | |
5429 | char c1, c2; | |
5430 | ||
5431 | know (*input_line_pointer == '<'); | |
5432 | ||
5433 | ++input_line_pointer; | |
5434 | c1 = *input_line_pointer++; | |
5435 | c2 = *input_line_pointer++; | |
5436 | ||
5437 | if (*input_line_pointer != '>') | |
5438 | { | |
5439 | as_bad ("syntax error in structured control directive"); | |
5440 | return 0; | |
5441 | } | |
5442 | ||
5443 | ++input_line_pointer; | |
5444 | SKIP_WHITESPACE (); | |
5445 | ||
5446 | if (isupper (c1)) | |
5447 | c1 = tolower (c1); | |
5448 | if (isupper (c2)) | |
5449 | c2 = tolower (c2); | |
5450 | ||
5451 | *pcc = (c1 << 8) | c2; | |
5452 | ||
5453 | return 1; | |
5454 | } | |
5455 | ||
5456 | /* Parse a single operand in an MRI structured control expression. */ | |
5457 | ||
5458 | static int | |
5459 | parse_mri_control_operand (pcc, leftstart, leftstop, rightstart, rightstop) | |
5460 | int *pcc; | |
b3625fe6 | 5461 | char **leftstart; |
e1c0287d | 5462 | char **leftstop; |
b3625fe6 | 5463 | char **rightstart; |
e1c0287d | 5464 | char **rightstop; |
b4ec75e0 ILT |
5465 | { |
5466 | char *s; | |
5467 | ||
5468 | SKIP_WHITESPACE (); | |
5469 | ||
5470 | *pcc = -1; | |
5471 | *leftstart = NULL; | |
5472 | *leftstop = NULL; | |
5473 | *rightstart = NULL; | |
5474 | *rightstop = NULL; | |
5475 | ||
5476 | if (*input_line_pointer == '<') | |
5477 | { | |
5478 | /* It's just a condition code. */ | |
5479 | return parse_mri_condition (pcc); | |
5480 | } | |
5481 | ||
5482 | /* Look ahead for the condition code. */ | |
5483 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5484 | { | |
5485 | if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>') | |
5486 | break; | |
5487 | } | |
5488 | if (*s == '\0') | |
5489 | { | |
5490 | as_bad ("missing condition code in structured control directive"); | |
5491 | return 0; | |
5492 | } | |
5493 | ||
5494 | *leftstart = input_line_pointer; | |
5495 | *leftstop = s; | |
4026c122 ILT |
5496 | if (*leftstop > *leftstart |
5497 | && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t')) | |
5498 | --*leftstop; | |
b4ec75e0 ILT |
5499 | |
5500 | input_line_pointer = s; | |
5501 | if (! parse_mri_condition (pcc)) | |
5502 | return 0; | |
5503 | ||
5504 | /* Look ahead for AND or OR or end of line. */ | |
5505 | for (s = input_line_pointer; *s != '\0'; ++s) | |
5506 | { | |
5507 | if ((strncasecmp (s, "AND", 3) == 0 | |
5508 | && (s[3] == '.' || ! is_part_of_name (s[3]))) | |
5509 | || (strncasecmp (s, "OR", 2) == 0 | |
5510 | && (s[2] == '.' || ! is_part_of_name (s[2])))) | |
5511 | break; | |
5512 | } | |
5513 | ||
5514 | *rightstart = input_line_pointer; | |
5515 | *rightstop = s; | |
4026c122 ILT |
5516 | if (*rightstop > *rightstart |
5517 | && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t')) | |
5518 | --*rightstop; | |
b4ec75e0 ILT |
5519 | |
5520 | input_line_pointer = s; | |
5521 | ||
5522 | return 1; | |
5523 | } | |
5524 | ||
5525 | #define MCC(b1, b2) (((b1) << 8) | (b2)) | |
5526 | ||
5527 | /* Swap the sense of a condition. This changes the condition so that | |
5528 | it generates the same result when the operands are swapped. */ | |
5529 | ||
5530 | static int | |
5531 | swap_mri_condition (cc) | |
5532 | int cc; | |
5533 | { | |
5534 | switch (cc) | |
5535 | { | |
5536 | case MCC ('h', 'i'): return MCC ('c', 's'); | |
5537 | case MCC ('l', 's'): return MCC ('c', 'c'); | |
5538 | case MCC ('c', 'c'): return MCC ('l', 's'); | |
5539 | case MCC ('c', 's'): return MCC ('h', 'i'); | |
5540 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5541 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5542 | case MCC ('g', 'e'): return MCC ('l', 'e'); | |
5543 | case MCC ('l', 't'): return MCC ('g', 't'); | |
5544 | case MCC ('g', 't'): return MCC ('l', 't'); | |
5545 | case MCC ('l', 'e'): return MCC ('g', 'e'); | |
5546 | } | |
5547 | return cc; | |
5548 | } | |
5549 | ||
5550 | /* Reverse the sense of a condition. */ | |
5551 | ||
5552 | static int | |
5553 | reverse_mri_condition (cc) | |
5554 | int cc; | |
5555 | { | |
5556 | switch (cc) | |
5557 | { | |
5558 | case MCC ('h', 'i'): return MCC ('l', 's'); | |
5559 | case MCC ('l', 's'): return MCC ('h', 'i'); | |
5560 | case MCC ('c', 'c'): return MCC ('c', 's'); | |
5561 | case MCC ('c', 's'): return MCC ('c', 'c'); | |
5562 | case MCC ('n', 'e'): return MCC ('e', 'q'); | |
5563 | case MCC ('e', 'q'): return MCC ('n', 'e'); | |
5564 | case MCC ('v', 'c'): return MCC ('v', 's'); | |
5565 | case MCC ('v', 's'): return MCC ('v', 'c'); | |
5566 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
5567 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
5568 | case MCC ('g', 'e'): return MCC ('l', 't'); | |
5569 | case MCC ('l', 't'): return MCC ('g', 'e'); | |
5570 | case MCC ('g', 't'): return MCC ('l', 'e'); | |
5571 | case MCC ('l', 'e'): return MCC ('g', 't'); | |
5572 | } | |
5573 | return cc; | |
5574 | } | |
5575 | ||
5576 | /* Build an MRI structured control expression. This generates test | |
5577 | and branch instructions. It goes to TRUELAB if the condition is | |
5578 | true, and to FALSELAB if the condition is false. Exactly one of | |
5579 | TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL | |
5580 | is the size qualifier for the expression. EXTENT is the size to | |
5581 | use for the branch. */ | |
5582 | ||
5583 | static void | |
5584 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5585 | rightstop, truelab, falselab, extent) | |
5586 | int qual; | |
5587 | int cc; | |
b3625fe6 | 5588 | char *leftstart; |
e1c0287d | 5589 | char *leftstop; |
b3625fe6 | 5590 | char *rightstart; |
e1c0287d | 5591 | char *rightstop; |
b4ec75e0 ILT |
5592 | const char *truelab; |
5593 | const char *falselab; | |
5594 | int extent; | |
5595 | { | |
5596 | char *buf; | |
5597 | char *s; | |
5598 | ||
e1c0287d | 5599 | if (leftstart != NULL) |
b3625fe6 | 5600 | { |
e1c0287d ILT |
5601 | struct m68k_op leftop, rightop; |
5602 | char c; | |
b3625fe6 | 5603 | |
e1c0287d ILT |
5604 | /* Swap the compare operands, if necessary, to produce a legal |
5605 | m68k compare instruction. Comparing a register operand with | |
5606 | a non-register operand requires the register to be on the | |
5607 | right (cmp, cmpa). Comparing an immediate value with | |
5608 | anything requires the immediate value to be on the left | |
5609 | (cmpi). */ | |
5610 | ||
5611 | c = *leftstop; | |
5612 | *leftstop = '\0'; | |
5613 | (void) m68k_ip_op (leftstart, &leftop); | |
5614 | *leftstop = c; | |
5615 | ||
5616 | c = *rightstop; | |
5617 | *rightstop = '\0'; | |
5618 | (void) m68k_ip_op (rightstart, &rightop); | |
5619 | *rightstop = c; | |
5620 | ||
5621 | if (rightop.mode == IMMED | |
5622 | || ((leftop.mode == DREG || leftop.mode == AREG) | |
5623 | && (rightop.mode != DREG && rightop.mode != AREG))) | |
5624 | { | |
5625 | char *temp; | |
5626 | ||
5627 | cc = swap_mri_condition (cc); | |
5628 | temp = leftstart; | |
5629 | leftstart = rightstart; | |
5630 | rightstart = temp; | |
5631 | temp = leftstop; | |
5632 | leftstop = rightstop; | |
5633 | rightstop = temp; | |
5634 | } | |
b4ec75e0 ILT |
5635 | } |
5636 | ||
5637 | if (truelab == NULL) | |
5638 | { | |
5639 | cc = reverse_mri_condition (cc); | |
5640 | truelab = falselab; | |
5641 | } | |
5642 | ||
5643 | if (leftstart != NULL) | |
5644 | { | |
5645 | buf = (char *) xmalloc (20 | |
5646 | + (leftstop - leftstart) | |
5647 | + (rightstop - rightstart)); | |
5648 | s = buf; | |
5649 | *s++ = 'c'; | |
5650 | *s++ = 'm'; | |
5651 | *s++ = 'p'; | |
5652 | if (qual != '\0') | |
5653 | *s++ = qual; | |
5654 | *s++ = ' '; | |
5655 | memcpy (s, leftstart, leftstop - leftstart); | |
5656 | s += leftstop - leftstart; | |
5657 | *s++ = ','; | |
5658 | memcpy (s, rightstart, rightstop - rightstart); | |
5659 | s += rightstop - rightstart; | |
5660 | *s = '\0'; | |
5661 | md_assemble (buf); | |
5662 | free (buf); | |
5663 | } | |
5664 | ||
5665 | buf = (char *) xmalloc (20 + strlen (truelab)); | |
5666 | s = buf; | |
5667 | *s++ = 'b'; | |
5668 | *s++ = cc >> 8; | |
5669 | *s++ = cc & 0xff; | |
5670 | if (extent != '\0') | |
5671 | *s++ = extent; | |
5672 | *s++ = ' '; | |
5673 | strcpy (s, truelab); | |
5674 | md_assemble (buf); | |
5675 | free (buf); | |
5676 | } | |
5677 | ||
5678 | /* Parse an MRI structured control expression. This generates test | |
5679 | and branch instructions. STOP is where the expression ends. It | |
5680 | goes to TRUELAB if the condition is true, and to FALSELAB if the | |
5681 | condition is false. Exactly one of TRUELAB and FALSELAB will be | |
5682 | NULL, meaning to fall through. QUAL is the size qualifier for the | |
5683 | expression. EXTENT is the size to use for the branch. */ | |
5684 | ||
5685 | static void | |
5686 | parse_mri_control_expression (stop, qual, truelab, falselab, extent) | |
5687 | char *stop; | |
5688 | int qual; | |
5689 | const char *truelab; | |
5690 | const char *falselab; | |
5691 | int extent; | |
5692 | { | |
5693 | int c; | |
5694 | int cc; | |
b3625fe6 | 5695 | char *leftstart; |
e1c0287d | 5696 | char *leftstop; |
b3625fe6 | 5697 | char *rightstart; |
e1c0287d | 5698 | char *rightstop; |
b4ec75e0 ILT |
5699 | |
5700 | c = *stop; | |
5701 | *stop = '\0'; | |
5702 | ||
5703 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
5704 | &rightstart, &rightstop)) | |
5705 | { | |
5706 | *stop = c; | |
5707 | return; | |
5708 | } | |
5709 | ||
5710 | if (strncasecmp (input_line_pointer, "AND", 3) == 0) | |
5711 | { | |
5712 | const char *flab; | |
5713 | ||
5714 | if (falselab != NULL) | |
5715 | flab = falselab; | |
5716 | else | |
5717 | flab = mri_control_label (); | |
5718 | ||
5719 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5720 | rightstop, (const char *) NULL, flab, extent); | |
5721 | ||
5722 | input_line_pointer += 3; | |
5723 | if (*input_line_pointer != '.' | |
5724 | || input_line_pointer[1] == '\0') | |
5725 | qual = '\0'; | |
5726 | else | |
5727 | { | |
5728 | qual = input_line_pointer[1]; | |
5729 | input_line_pointer += 2; | |
5730 | } | |
5731 | ||
5732 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
5733 | &rightstart, &rightstop)) | |
5734 | { | |
5735 | *stop = c; | |
5736 | return; | |
5737 | } | |
5738 | ||
5739 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5740 | rightstop, truelab, falselab, extent); | |
5741 | ||
5742 | if (falselab == NULL) | |
5743 | colon (flab); | |
5744 | } | |
5745 | else if (strncasecmp (input_line_pointer, "OR", 2) == 0) | |
5746 | { | |
5747 | const char *tlab; | |
5748 | ||
5749 | if (truelab != NULL) | |
5750 | tlab = truelab; | |
5751 | else | |
5752 | tlab = mri_control_label (); | |
5753 | ||
5754 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5755 | rightstop, tlab, (const char *) NULL, extent); | |
5756 | ||
5757 | input_line_pointer += 2; | |
5758 | if (*input_line_pointer != '.' | |
5759 | || input_line_pointer[1] == '\0') | |
5760 | qual = '\0'; | |
5761 | else | |
5762 | { | |
5763 | qual = input_line_pointer[1]; | |
5764 | input_line_pointer += 2; | |
5765 | } | |
5766 | ||
5767 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
5768 | &rightstart, &rightstop)) | |
5769 | { | |
5770 | *stop = c; | |
5771 | return; | |
5772 | } | |
5773 | ||
5774 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5775 | rightstop, truelab, falselab, extent); | |
5776 | ||
5777 | if (truelab == NULL) | |
5778 | colon (tlab); | |
5779 | } | |
5780 | else | |
5781 | { | |
5782 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
5783 | rightstop, truelab, falselab, extent); | |
5784 | } | |
5785 | ||
5786 | *stop = c; | |
5787 | if (input_line_pointer != stop) | |
5788 | as_bad ("syntax error in structured control directive"); | |
5789 | } | |
5790 | ||
5791 | /* Handle the MRI IF pseudo-op. This may be a structured control | |
5792 | directive, or it may be a regular assembler conditional, depending | |
5793 | on its operands. */ | |
5794 | ||
5795 | static void | |
5796 | s_mri_if (qual) | |
5797 | int qual; | |
5798 | { | |
5799 | char *s; | |
5800 | int c; | |
5801 | struct mri_control_info *n; | |
5802 | ||
5803 | /* A structured control directive must end with THEN with an | |
5804 | optional qualifier. */ | |
5805 | s = input_line_pointer; | |
e1c0287d ILT |
5806 | while (! is_end_of_line[(unsigned char) *s] |
5807 | && (! flag_mri || *s != '*')) | |
b4ec75e0 ILT |
5808 | ++s; |
5809 | --s; | |
5810 | while (s > input_line_pointer && (*s == ' ' || *s == '\t')) | |
5811 | --s; | |
5812 | ||
5813 | if (s - input_line_pointer > 1 | |
5814 | && s[-1] == '.') | |
5815 | s -= 2; | |
5816 | ||
5817 | if (s - input_line_pointer < 3 | |
5818 | || strncasecmp (s - 3, "THEN", 4) != 0) | |
5819 | { | |
5820 | if (qual != '\0') | |
5821 | { | |
5822 | as_bad ("missing then"); | |
5823 | ignore_rest_of_line (); | |
5824 | return; | |
5825 | } | |
5826 | ||
5827 | /* It's a conditional. */ | |
5828 | s_if (O_ne); | |
5829 | return; | |
5830 | } | |
5831 | ||
5832 | /* Since this might be a conditional if, this pseudo-op will be | |
5833 | called even if we are supported to be ignoring input. Double | |
5834 | check now. Clobber *input_line_pointer so that ignore_input | |
5835 | thinks that this is not a special pseudo-op. */ | |
5836 | c = *input_line_pointer; | |
5837 | *input_line_pointer = 0; | |
5838 | if (ignore_input ()) | |
5839 | { | |
5840 | *input_line_pointer = c; | |
5841 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5842 | ++input_line_pointer; | |
5843 | demand_empty_rest_of_line (); | |
5844 | return; | |
5845 | } | |
5846 | *input_line_pointer = c; | |
5847 | ||
5848 | n = push_mri_control (mri_if); | |
5849 | ||
5850 | parse_mri_control_expression (s - 3, qual, (const char *) NULL, | |
5851 | n->next, s[1] == '.' ? s[2] : '\0'); | |
5852 | ||
5853 | if (s[1] == '.') | |
5854 | input_line_pointer = s + 3; | |
5855 | else | |
5856 | input_line_pointer = s + 1; | |
5857 | ||
e1c0287d ILT |
5858 | if (flag_mri) |
5859 | { | |
5860 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5861 | ++input_line_pointer; | |
5862 | } | |
5863 | ||
b4ec75e0 ILT |
5864 | demand_empty_rest_of_line (); |
5865 | } | |
5866 | ||
5867 | /* Handle the MRI else pseudo-op. If we are currently doing an MRI | |
5868 | structured IF, associate the ELSE with the IF. Otherwise, assume | |
5869 | it is a conditional else. */ | |
5870 | ||
5871 | static void | |
5872 | s_mri_else (qual) | |
5873 | int qual; | |
5874 | { | |
5875 | int c; | |
5876 | char *buf; | |
5877 | char q[2]; | |
5878 | ||
5879 | if (qual == '\0' | |
5880 | && (mri_control_stack == NULL | |
5881 | || mri_control_stack->type != mri_if | |
5882 | || mri_control_stack->else_seen)) | |
5883 | { | |
5884 | s_else (0); | |
5885 | return; | |
5886 | } | |
5887 | ||
5888 | c = *input_line_pointer; | |
5889 | *input_line_pointer = 0; | |
5890 | if (ignore_input ()) | |
5891 | { | |
5892 | *input_line_pointer = c; | |
5893 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5894 | ++input_line_pointer; | |
5895 | demand_empty_rest_of_line (); | |
5896 | return; | |
5897 | } | |
5898 | *input_line_pointer = c; | |
5899 | ||
5900 | if (mri_control_stack == NULL | |
5901 | || mri_control_stack->type != mri_if | |
5902 | || mri_control_stack->else_seen) | |
5903 | { | |
5904 | as_bad ("else without matching if"); | |
5905 | ignore_rest_of_line (); | |
5906 | return; | |
5907 | } | |
5908 | ||
5909 | mri_control_stack->else_seen = 1; | |
5910 | ||
5911 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom)); | |
5912 | q[0] = qual; | |
5913 | q[1] = '\0'; | |
5914 | sprintf (buf, "bra%s %s", q, mri_control_stack->bottom); | |
5915 | md_assemble (buf); | |
5916 | free (buf); | |
5917 | ||
5918 | colon (mri_control_stack->next); | |
5919 | ||
e1c0287d ILT |
5920 | if (flag_mri) |
5921 | { | |
5922 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5923 | ++input_line_pointer; | |
5924 | } | |
5925 | ||
b4ec75e0 ILT |
5926 | demand_empty_rest_of_line (); |
5927 | } | |
5928 | ||
5929 | /* Handle the MRI ENDI pseudo-op. */ | |
5930 | ||
5931 | static void | |
5932 | s_mri_endi (ignore) | |
5933 | int ignore; | |
5934 | { | |
5935 | if (mri_control_stack == NULL | |
5936 | || mri_control_stack->type != mri_if) | |
5937 | { | |
5938 | as_bad ("endi without matching if"); | |
5939 | ignore_rest_of_line (); | |
5940 | return; | |
5941 | } | |
5942 | ||
5943 | /* ignore_input will not return true for ENDI, so we don't need to | |
5944 | worry about checking it again here. */ | |
5945 | ||
5946 | if (! mri_control_stack->else_seen) | |
5947 | colon (mri_control_stack->next); | |
5948 | colon (mri_control_stack->bottom); | |
5949 | ||
5950 | pop_mri_control (); | |
5951 | ||
e1c0287d ILT |
5952 | if (flag_mri) |
5953 | { | |
5954 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5955 | ++input_line_pointer; | |
5956 | } | |
5957 | ||
b4ec75e0 ILT |
5958 | demand_empty_rest_of_line (); |
5959 | } | |
5960 | ||
5961 | /* Handle the MRI BREAK pseudo-op. */ | |
5962 | ||
5963 | static void | |
5964 | s_mri_break (extent) | |
5965 | int extent; | |
5966 | { | |
5967 | struct mri_control_info *n; | |
5968 | char *buf; | |
5969 | char ex[2]; | |
5970 | ||
5971 | n = mri_control_stack; | |
5972 | while (n != NULL | |
5973 | && n->type != mri_for | |
5974 | && n->type != mri_repeat | |
5975 | && n->type != mri_while) | |
5976 | n = n->outer; | |
5977 | if (n == NULL) | |
5978 | { | |
5979 | as_bad ("break outside of structured loop"); | |
5980 | ignore_rest_of_line (); | |
5981 | return; | |
5982 | } | |
5983 | ||
5984 | buf = (char *) xmalloc (20 + strlen (n->bottom)); | |
5985 | ex[0] = extent; | |
5986 | ex[1] = '\0'; | |
5987 | sprintf (buf, "bra%s %s", ex, n->bottom); | |
5988 | md_assemble (buf); | |
5989 | free (buf); | |
5990 | ||
e1c0287d ILT |
5991 | if (flag_mri) |
5992 | { | |
5993 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5994 | ++input_line_pointer; | |
5995 | } | |
5996 | ||
b4ec75e0 ILT |
5997 | demand_empty_rest_of_line (); |
5998 | } | |
5999 | ||
6000 | /* Handle the MRI NEXT pseudo-op. */ | |
6001 | ||
6002 | static void | |
6003 | s_mri_next (extent) | |
6004 | int extent; | |
6005 | { | |
6006 | struct mri_control_info *n; | |
6007 | char *buf; | |
6008 | char ex[2]; | |
6009 | ||
6010 | n = mri_control_stack; | |
6011 | while (n != NULL | |
6012 | && n->type != mri_for | |
6013 | && n->type != mri_repeat | |
6014 | && n->type != mri_while) | |
6015 | n = n->outer; | |
6016 | if (n == NULL) | |
6017 | { | |
6018 | as_bad ("next outside of structured loop"); | |
6019 | ignore_rest_of_line (); | |
6020 | return; | |
6021 | } | |
6022 | ||
6023 | buf = (char *) xmalloc (20 + strlen (n->next)); | |
6024 | ex[0] = extent; | |
6025 | ex[1] = '\0'; | |
6026 | sprintf (buf, "bra%s %s", ex, n->next); | |
6027 | md_assemble (buf); | |
6028 | free (buf); | |
6029 | ||
e1c0287d ILT |
6030 | if (flag_mri) |
6031 | { | |
6032 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6033 | ++input_line_pointer; | |
6034 | } | |
6035 | ||
b4ec75e0 ILT |
6036 | demand_empty_rest_of_line (); |
6037 | } | |
6038 | ||
6039 | /* Handle the MRI FOR pseudo-op. */ | |
6040 | ||
6041 | static void | |
6042 | s_mri_for (qual) | |
6043 | int qual; | |
6044 | { | |
6045 | const char *varstart, *varstop; | |
6046 | const char *initstart, *initstop; | |
6047 | const char *endstart, *endstop; | |
6048 | const char *bystart, *bystop; | |
6049 | int up; | |
6050 | int by; | |
6051 | int extent; | |
6052 | struct mri_control_info *n; | |
6053 | char *buf; | |
6054 | char *s; | |
6055 | char ex[2]; | |
6056 | ||
6057 | /* The syntax is | |
6058 | FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e | |
6059 | */ | |
6060 | ||
4026c122 | 6061 | SKIP_WHITESPACE (); |
b4ec75e0 ILT |
6062 | varstart = input_line_pointer; |
6063 | ||
6064 | /* Look for the '='. */ | |
6065 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
6066 | && *input_line_pointer != '=') | |
6067 | ++input_line_pointer; | |
6068 | if (*input_line_pointer != '=') | |
6069 | { | |
6070 | as_bad ("missing ="); | |
6071 | ignore_rest_of_line (); | |
6072 | return; | |
6073 | } | |
6074 | ||
6075 | varstop = input_line_pointer; | |
4026c122 ILT |
6076 | if (varstop > varstart |
6077 | && (varstop[-1] == ' ' || varstop[-1] == '\t')) | |
6078 | --varstop; | |
b4ec75e0 ILT |
6079 | |
6080 | ++input_line_pointer; | |
6081 | ||
6082 | initstart = input_line_pointer; | |
6083 | ||
6084 | /* Look for TO or DOWNTO. */ | |
6085 | up = 1; | |
6086 | initstop = NULL; | |
6087 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6088 | { | |
6089 | if (strncasecmp (input_line_pointer, "TO", 2) == 0 | |
6090 | && ! is_part_of_name (input_line_pointer[2])) | |
6091 | { | |
6092 | initstop = input_line_pointer; | |
6093 | input_line_pointer += 2; | |
6094 | break; | |
6095 | } | |
6096 | if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0 | |
6097 | && ! is_part_of_name (input_line_pointer[6])) | |
6098 | { | |
6099 | initstop = input_line_pointer; | |
6100 | up = 0; | |
6101 | input_line_pointer += 6; | |
6102 | break; | |
6103 | } | |
6104 | ++input_line_pointer; | |
6105 | } | |
6106 | if (initstop == NULL) | |
6107 | { | |
6108 | as_bad ("missing to or downto"); | |
6109 | ignore_rest_of_line (); | |
6110 | return; | |
6111 | } | |
4026c122 ILT |
6112 | if (initstop > initstart |
6113 | && (initstop[-1] == ' ' || initstop[-1] == '\t')) | |
6114 | --initstop; | |
b4ec75e0 | 6115 | |
4026c122 | 6116 | SKIP_WHITESPACE (); |
b4ec75e0 ILT |
6117 | endstart = input_line_pointer; |
6118 | ||
6119 | /* Look for BY or DO. */ | |
6120 | by = 0; | |
6121 | endstop = NULL; | |
6122 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6123 | { | |
6124 | if (strncasecmp (input_line_pointer, "BY", 2) == 0 | |
6125 | && ! is_part_of_name (input_line_pointer[2])) | |
6126 | { | |
6127 | endstop = input_line_pointer; | |
6128 | by = 1; | |
6129 | input_line_pointer += 2; | |
6130 | break; | |
6131 | } | |
6132 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6133 | && (input_line_pointer[2] == '.' | |
6134 | || ! is_part_of_name (input_line_pointer[2]))) | |
6135 | { | |
6136 | endstop = input_line_pointer; | |
6137 | input_line_pointer += 2; | |
6138 | break; | |
6139 | } | |
6140 | ++input_line_pointer; | |
6141 | } | |
6142 | if (endstop == NULL) | |
6143 | { | |
6144 | as_bad ("missing do"); | |
6145 | ignore_rest_of_line (); | |
6146 | return; | |
6147 | } | |
4026c122 ILT |
6148 | if (endstop > endstart |
6149 | && (endstop[-1] == ' ' || endstop[-1] == '\t')) | |
6150 | --endstop; | |
b4ec75e0 ILT |
6151 | |
6152 | if (! by) | |
6153 | { | |
6154 | bystart = "#1"; | |
6155 | bystop = bystart + 2; | |
6156 | } | |
6157 | else | |
6158 | { | |
4026c122 | 6159 | SKIP_WHITESPACE (); |
b4ec75e0 ILT |
6160 | bystart = input_line_pointer; |
6161 | ||
6162 | /* Look for DO. */ | |
6163 | bystop = NULL; | |
6164 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6165 | { | |
6166 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6167 | && (input_line_pointer[2] == '.' | |
6168 | || ! is_part_of_name (input_line_pointer[2]))) | |
6169 | { | |
6170 | bystop = input_line_pointer; | |
6171 | input_line_pointer += 2; | |
6172 | break; | |
6173 | } | |
6174 | ++input_line_pointer; | |
6175 | } | |
6176 | if (bystop == NULL) | |
6177 | { | |
6178 | as_bad ("missing do"); | |
6179 | ignore_rest_of_line (); | |
6180 | return; | |
6181 | } | |
4026c122 ILT |
6182 | if (bystop > bystart |
6183 | && (bystop[-1] == ' ' || bystop[-1] == '\t')) | |
6184 | --bystop; | |
b4ec75e0 ILT |
6185 | } |
6186 | ||
6187 | if (*input_line_pointer != '.') | |
6188 | extent = '\0'; | |
6189 | else | |
6190 | { | |
6191 | extent = input_line_pointer[1]; | |
6192 | input_line_pointer += 2; | |
6193 | } | |
6194 | ||
6195 | /* We have fully parsed the FOR operands. Now build the loop. */ | |
6196 | ||
6197 | n = push_mri_control (mri_for); | |
6198 | ||
6199 | buf = (char *) xmalloc (50 + (input_line_pointer - varstart)); | |
6200 | ||
6201 | /* move init,var */ | |
6202 | s = buf; | |
6203 | *s++ = 'm'; | |
6204 | *s++ = 'o'; | |
6205 | *s++ = 'v'; | |
6206 | *s++ = 'e'; | |
6207 | if (qual != '\0') | |
6208 | *s++ = qual; | |
6209 | *s++ = ' '; | |
6210 | memcpy (s, initstart, initstop - initstart); | |
6211 | s += initstop - initstart; | |
6212 | *s++ = ','; | |
6213 | memcpy (s, varstart, varstop - varstart); | |
6214 | s += varstop - varstart; | |
6215 | *s = '\0'; | |
6216 | md_assemble (buf); | |
6217 | ||
6218 | colon (n->top); | |
6219 | ||
6220 | /* cmp end,var */ | |
6221 | s = buf; | |
6222 | *s++ = 'c'; | |
6223 | *s++ = 'm'; | |
6224 | *s++ = 'p'; | |
6225 | if (qual != '\0') | |
6226 | *s++ = qual; | |
6227 | *s++ = ' '; | |
6228 | memcpy (s, endstart, endstop - endstart); | |
6229 | s += endstop - endstart; | |
6230 | *s++ = ','; | |
6231 | memcpy (s, varstart, varstop - varstart); | |
6232 | s += varstop - varstart; | |
6233 | *s = '\0'; | |
6234 | md_assemble (buf); | |
6235 | ||
6236 | /* bcc bottom */ | |
6237 | ex[0] = extent; | |
6238 | ex[1] = '\0'; | |
6239 | if (up) | |
6240 | sprintf (buf, "blt%s %s", ex, n->bottom); | |
6241 | else | |
6242 | sprintf (buf, "bgt%s %s", ex, n->bottom); | |
6243 | md_assemble (buf); | |
6244 | ||
6245 | /* Put together the add or sub instruction used by ENDF. */ | |
6246 | s = buf; | |
6247 | if (up) | |
6248 | strcpy (s, "add"); | |
6249 | else | |
6250 | strcpy (s, "sub"); | |
6251 | s += 3; | |
6252 | if (qual != '\0') | |
6253 | *s++ = qual; | |
6254 | *s++ = ' '; | |
6255 | memcpy (s, bystart, bystop - bystart); | |
6256 | s += bystop - bystart; | |
6257 | *s++ = ','; | |
6258 | memcpy (s, varstart, varstop - varstart); | |
6259 | s += varstop - varstart; | |
6260 | *s = '\0'; | |
6261 | n->incr = buf; | |
6262 | ||
e1c0287d ILT |
6263 | if (flag_mri) |
6264 | { | |
6265 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6266 | ++input_line_pointer; | |
6267 | } | |
6268 | ||
b4ec75e0 ILT |
6269 | demand_empty_rest_of_line (); |
6270 | } | |
6271 | ||
6272 | /* Handle the MRI ENDF pseudo-op. */ | |
6273 | ||
6274 | static void | |
6275 | s_mri_endf (ignore) | |
6276 | int ignore; | |
6277 | { | |
6278 | if (mri_control_stack == NULL | |
6279 | || mri_control_stack->type != mri_for) | |
6280 | { | |
6281 | as_bad ("endf without for"); | |
6282 | ignore_rest_of_line (); | |
6283 | return; | |
6284 | } | |
6285 | ||
6286 | colon (mri_control_stack->next); | |
6287 | ||
6288 | md_assemble (mri_control_stack->incr); | |
6289 | ||
6290 | sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top); | |
6291 | md_assemble (mri_control_stack->incr); | |
6292 | ||
6293 | free (mri_control_stack->incr); | |
6294 | ||
6295 | colon (mri_control_stack->bottom); | |
6296 | ||
6297 | pop_mri_control (); | |
6298 | ||
e1c0287d ILT |
6299 | if (flag_mri) |
6300 | { | |
6301 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6302 | ++input_line_pointer; | |
6303 | } | |
6304 | ||
b4ec75e0 ILT |
6305 | demand_empty_rest_of_line (); |
6306 | } | |
6307 | ||
6308 | /* Handle the MRI REPEAT pseudo-op. */ | |
6309 | ||
6310 | static void | |
6311 | s_mri_repeat (ignore) | |
6312 | int ignore; | |
6313 | { | |
6314 | struct mri_control_info *n; | |
6315 | ||
6316 | n = push_mri_control (mri_repeat); | |
6317 | colon (n->top); | |
e1c0287d ILT |
6318 | if (flag_mri) |
6319 | { | |
6320 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6321 | ++input_line_pointer; | |
6322 | } | |
b4ec75e0 ILT |
6323 | demand_empty_rest_of_line (); |
6324 | } | |
6325 | ||
6326 | /* Handle the MRI UNTIL pseudo-op. */ | |
6327 | ||
6328 | static void | |
6329 | s_mri_until (qual) | |
6330 | int qual; | |
6331 | { | |
6332 | char *s; | |
6333 | ||
6334 | if (mri_control_stack == NULL | |
6335 | || mri_control_stack->type != mri_repeat) | |
6336 | { | |
6337 | as_bad ("until without repeat"); | |
6338 | ignore_rest_of_line (); | |
6339 | return; | |
6340 | } | |
6341 | ||
6342 | colon (mri_control_stack->next); | |
6343 | ||
6344 | for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++) | |
6345 | ; | |
6346 | ||
6347 | parse_mri_control_expression (s, qual, (const char *) NULL, | |
6348 | mri_control_stack->top, '\0'); | |
6349 | ||
6350 | colon (mri_control_stack->bottom); | |
6351 | ||
6352 | input_line_pointer = s; | |
6353 | ||
9e64486e ILT |
6354 | pop_mri_control (); |
6355 | ||
e1c0287d ILT |
6356 | if (flag_mri) |
6357 | { | |
6358 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6359 | ++input_line_pointer; | |
6360 | } | |
6361 | ||
b4ec75e0 ILT |
6362 | demand_empty_rest_of_line (); |
6363 | } | |
6364 | ||
6365 | /* Handle the MRI WHILE pseudo-op. */ | |
6366 | ||
6367 | static void | |
6368 | s_mri_while (qual) | |
6369 | int qual; | |
6370 | { | |
6371 | char *s; | |
6372 | ||
6373 | struct mri_control_info *n; | |
6374 | ||
6375 | s = input_line_pointer; | |
e1c0287d ILT |
6376 | while (! is_end_of_line[(unsigned char) *s] |
6377 | && (! flag_mri || *s != '*')) | |
b4ec75e0 ILT |
6378 | s++; |
6379 | --s; | |
6380 | while (*s == ' ' || *s == '\t') | |
6381 | --s; | |
6382 | if (s - input_line_pointer > 1 | |
6383 | && s[-1] == '.') | |
6384 | s -= 2; | |
6385 | if (s - input_line_pointer < 2 | |
6386 | || strncasecmp (s - 1, "DO", 2) != 0) | |
6387 | { | |
6388 | as_bad ("missing do"); | |
6389 | ignore_rest_of_line (); | |
6390 | return; | |
6391 | } | |
6392 | ||
6393 | n = push_mri_control (mri_while); | |
6394 | ||
6395 | colon (n->next); | |
6396 | ||
6397 | parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom, | |
6398 | s[1] == '.' ? s[2] : '\0'); | |
6399 | ||
6400 | input_line_pointer = s + 1; | |
6401 | if (*input_line_pointer == '.') | |
6402 | input_line_pointer += 2; | |
6403 | ||
e1c0287d ILT |
6404 | if (flag_mri) |
6405 | { | |
6406 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6407 | ++input_line_pointer; | |
6408 | } | |
6409 | ||
b4ec75e0 ILT |
6410 | demand_empty_rest_of_line (); |
6411 | } | |
6412 | ||
6413 | /* Handle the MRI ENDW pseudo-op. */ | |
6414 | ||
6415 | static void | |
6416 | s_mri_endw (ignore) | |
6417 | int ignore; | |
6418 | { | |
6419 | char *buf; | |
6420 | ||
6421 | if (mri_control_stack == NULL | |
6422 | || mri_control_stack->type != mri_while) | |
6423 | { | |
6424 | as_bad ("endw without while"); | |
6425 | ignore_rest_of_line (); | |
6426 | return; | |
6427 | } | |
6428 | ||
6429 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->next)); | |
6430 | sprintf (buf, "bra %s", mri_control_stack->next); | |
6431 | md_assemble (buf); | |
6432 | free (buf); | |
6433 | ||
6434 | colon (mri_control_stack->bottom); | |
6435 | ||
6436 | pop_mri_control (); | |
6437 | ||
e1c0287d ILT |
6438 | if (flag_mri) |
6439 | { | |
6440 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6441 | ++input_line_pointer; | |
6442 | } | |
6443 | ||
b4ec75e0 ILT |
6444 | demand_empty_rest_of_line (); |
6445 | } | |
f3d817d8 | 6446 | \f |
7c15cbe8 RP |
6447 | /* |
6448 | * md_parse_option | |
6449 | * Invocation line includes a switch not recognized by the base assembler. | |
6450 | * See if it's a processor-specific option. These are: | |
6451 | * | |
6452 | * -[A]m[c]68000, -[A]m[c]68008, -[A]m[c]68010, -[A]m[c]68020, -[A]m[c]68030, -[A]m[c]68040 | |
6453 | * -[A]m[c]68881, -[A]m[c]68882, -[A]m[c]68851 | |
6454 | * Select the architecture. Instructions or features not | |
6455 | * supported by the selected architecture cause fatal | |
6456 | * errors. More than one may be specified. The default is | |
6457 | * -m68020 -m68851 -m68881. Note that -m68008 is a synonym | |
6458 | * for -m68000, and -m68882 is a synonym for -m68881. | |
df3768fb KR |
6459 | * -[A]m[c]no-68851, -[A]m[c]no-68881 |
6460 | * Don't accept 688?1 instructions. (The "c" is kind of silly, | |
6461 | * so don't use or document it, but that's the way the parsing | |
6462 | * works). | |
7c15cbe8 | 6463 | * |
dff60b7d ILT |
6464 | * -pic Indicates PIC. |
6465 | * -k Indicates PIC. (Sun 3 only.) | |
b80d39a0 | 6466 | * |
8d20a0a8 C |
6467 | * --bitwise-or |
6468 | * Permit `|' to be used in expressions. | |
6469 | * | |
7c15cbe8 RP |
6470 | */ |
6471 | ||
5f8cb05e ILT |
6472 | #ifdef OBJ_ELF |
6473 | CONST char *md_shortopts = "lSA:m:kQ:V"; | |
6474 | #else | |
f3d817d8 | 6475 | CONST char *md_shortopts = "lSA:m:k"; |
5f8cb05e ILT |
6476 | #endif |
6477 | ||
f3d817d8 DM |
6478 | struct option md_longopts[] = { |
6479 | #define OPTION_PIC (OPTION_MD_BASE) | |
6480 | {"pic", no_argument, NULL, OPTION_PIC}, | |
6481 | #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1) | |
6482 | {"register-prefix-optional", no_argument, NULL, | |
6483 | OPTION_REGISTER_PREFIX_OPTIONAL}, | |
8d20a0a8 C |
6484 | #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2) |
6485 | {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR}, | |
b4d51f3d ILT |
6486 | #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3) |
6487 | {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16}, | |
6488 | #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4) | |
6489 | {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32}, | |
924160b0 ILT |
6490 | #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5) |
6491 | {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16}, | |
6492 | #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6) | |
6493 | {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32}, | |
f3d817d8 DM |
6494 | {NULL, no_argument, NULL, 0} |
6495 | }; | |
6496 | size_t md_longopts_size = sizeof(md_longopts); | |
82489ea0 | 6497 | |
355afbcd | 6498 | int |
f3d817d8 DM |
6499 | md_parse_option (c, arg) |
6500 | int c; | |
6501 | char *arg; | |
fecd2382 | 6502 | { |
f3d817d8 | 6503 | switch (c) |
355afbcd KR |
6504 | { |
6505 | case 'l': /* -l means keep external to 2 bit offset | |
e284846a | 6506 | rather than 16 bit one */ |
9ad5755f | 6507 | flag_short_refs = 1; |
355afbcd | 6508 | break; |
6d27d3a2 | 6509 | |
e284846a KR |
6510 | case 'S': /* -S means that jbsr's always turn into |
6511 | jsr's. */ | |
9ad5755f | 6512 | flag_long_jumps = 1; |
355afbcd | 6513 | break; |
6d27d3a2 | 6514 | |
355afbcd | 6515 | case 'A': |
f3d817d8 DM |
6516 | if (*arg == 'm') |
6517 | arg++; | |
355afbcd KR |
6518 | /* intentional fall-through */ |
6519 | case 'm': | |
355afbcd | 6520 | |
b79de3a1 | 6521 | if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-') |
e284846a | 6522 | { |
064ba683 ILT |
6523 | int i; |
6524 | unsigned long arch; | |
b79de3a1 KR |
6525 | const char *oarg = arg; |
6526 | ||
6527 | arg += 3; | |
6528 | if (*arg == 'm') | |
6529 | { | |
6530 | arg++; | |
6531 | if (arg[0] == 'c' && arg[1] == '6') | |
6532 | arg++; | |
6533 | } | |
6534 | for (i = 0; i < n_archs; i++) | |
6535 | if (!strcmp (arg, archs[i].name)) | |
6536 | break; | |
6537 | if (i == n_archs) | |
6538 | { | |
6539 | unknown: | |
6540 | as_bad ("unrecognized option `%s'", oarg); | |
6541 | return 0; | |
6542 | } | |
6543 | arch = archs[i].arch; | |
6544 | if (arch == m68881) | |
6545 | no_68881 = 1; | |
6546 | else if (arch == m68851) | |
6547 | no_68851 = 1; | |
6548 | else | |
6549 | goto unknown; | |
355afbcd KR |
6550 | } |
6551 | else | |
6552 | { | |
b79de3a1 KR |
6553 | int i; |
6554 | ||
6555 | if (arg[0] == 'c' && arg[1] == '6') | |
6556 | arg++; | |
6557 | ||
6558 | for (i = 0; i < n_archs; i++) | |
6559 | if (!strcmp (arg, archs[i].name)) | |
6560 | { | |
6561 | unsigned long arch = archs[i].arch; | |
6562 | if (cpu_of_arch (arch)) | |
6563 | /* It's a cpu spec. */ | |
6564 | { | |
6565 | current_architecture &= ~m68000up; | |
6566 | current_architecture |= arch; | |
6567 | } | |
6568 | else if (arch == m68881) | |
6569 | { | |
6570 | current_architecture |= m68881; | |
6571 | no_68881 = 0; | |
6572 | } | |
6573 | else if (arch == m68851) | |
6574 | { | |
6575 | current_architecture |= m68851; | |
6576 | no_68851 = 0; | |
6577 | } | |
6578 | else | |
6579 | /* ??? */ | |
6580 | abort (); | |
6581 | break; | |
6582 | } | |
6583 | if (i == n_archs) | |
6584 | { | |
6585 | as_bad ("unrecognized architecture specification `%s'", arg); | |
6586 | return 0; | |
6587 | } | |
f8701a3f | 6588 | } |
f3d817d8 | 6589 | break; |
dff60b7d | 6590 | |
f3d817d8 | 6591 | case OPTION_PIC: |
dff60b7d ILT |
6592 | case 'k': |
6593 | flag_want_pic = 1; | |
f3d817d8 DM |
6594 | break; /* -pic, Position Independent Code */ |
6595 | ||
6596 | case OPTION_REGISTER_PREFIX_OPTIONAL: | |
6597 | flag_reg_prefix_optional = 1; | |
20710f1c | 6598 | reg_prefix_optional_seen = 1; |
dff60b7d | 6599 | break; |
355afbcd | 6600 | |
a043f579 | 6601 | /* -V: SVR4 argument to print version ID. */ |
5f8cb05e | 6602 | case 'V': |
a043f579 ILT |
6603 | print_version_id (); |
6604 | break; | |
6605 | ||
6606 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
6607 | should be emitted or not. FIXME: Not implemented. */ | |
6608 | case 'Q': | |
5f8cb05e ILT |
6609 | break; |
6610 | ||
8d20a0a8 C |
6611 | case OPTION_BITWISE_OR: |
6612 | { | |
6613 | char *n, *t; | |
6614 | const char *s; | |
6615 | ||
6616 | n = (char *) xmalloc (strlen (m68k_comment_chars) + 1); | |
6617 | t = n; | |
6618 | for (s = m68k_comment_chars; *s != '\0'; s++) | |
6619 | if (*s != '|') | |
6620 | *t++ = *s; | |
6621 | *t = '\0'; | |
6622 | m68k_comment_chars = n; | |
6623 | } | |
6624 | break; | |
6625 | ||
b4d51f3d ILT |
6626 | case OPTION_BASE_SIZE_DEFAULT_16: |
6627 | m68k_index_width_default = SIZE_WORD; | |
6628 | break; | |
6629 | ||
6630 | case OPTION_BASE_SIZE_DEFAULT_32: | |
6631 | m68k_index_width_default = SIZE_LONG; | |
6632 | break; | |
6633 | ||
924160b0 ILT |
6634 | case OPTION_DISP_SIZE_DEFAULT_16: |
6635 | m68k_rel32 = 0; | |
6636 | m68k_rel32_from_cmdline = 1; | |
6637 | break; | |
6638 | ||
6639 | case OPTION_DISP_SIZE_DEFAULT_32: | |
6640 | m68k_rel32 = 1; | |
6641 | m68k_rel32_from_cmdline = 1; | |
6642 | break; | |
6643 | ||
355afbcd KR |
6644 | default: |
6645 | return 0; | |
6646 | } | |
f3d817d8 | 6647 | |
355afbcd | 6648 | return 1; |
fecd2382 RP |
6649 | } |
6650 | ||
f3d817d8 DM |
6651 | void |
6652 | md_show_usage (stream) | |
6653 | FILE *stream; | |
6654 | { | |
6655 | fprintf(stream, "\ | |
6656 | 680X0 options:\n\ | |
6657 | -l use 1 word for refs to undefined symbols [default 2]\n\ | |
5f8cb05e ILT |
6658 | -m68000 | -m68008 | -m68010 | -m68020 | -m68030 | -m68040 | -m68060\n\ |
6659 | | -m68302 | -m68331 | -m68332 | -m68333 | -m68340 | -m68360\n\ | |
7f003b7f | 6660 | | -mcpu32 | -m5200\n\ |
f3d817d8 DM |
6661 | specify variant of 680X0 architecture [default 68020]\n\ |
6662 | -m68881 | -m68882 | -mno-68881 | -mno-68882\n\ | |
6663 | target has/lacks floating-point coprocessor\n\ | |
92a25e12 ILT |
6664 | [default yes for 68020, 68030, and cpu32]\n"); |
6665 | fprintf(stream, "\ | |
f3d817d8 DM |
6666 | -m68851 | -mno-68851\n\ |
6667 | target has/lacks memory-management unit coprocessor\n\ | |
6668 | [default yes for 68020 and up]\n\ | |
6669 | -pic, -k generate position independent code\n\ | |
6670 | -S turn jbsr into jsr\n\ | |
6671 | --register-prefix-optional\n\ | |
8d20a0a8 C |
6672 | recognize register names without prefix character\n\ |
6673 | --bitwise-or do not treat `|' as a comment character\n"); | |
b4d51f3d ILT |
6674 | fprintf (stream, "\ |
6675 | --base-size-default-16 base reg without size is 16 bits\n\ | |
924160b0 ILT |
6676 | --base-size-default-32 base reg without size is 32 bits (default)\n\ |
6677 | --disp-size-default-16 displacement with unknown size is 16 bits\n\ | |
6678 | --disp-size-default-32 displacement with unknown size is 32 bits (default)\n"); | |
f3d817d8 DM |
6679 | } |
6680 | \f | |
fecd2382 RP |
6681 | #ifdef TEST2 |
6682 | ||
6683 | /* TEST2: Test md_assemble() */ | |
6684 | /* Warning, this routine probably doesn't work anymore */ | |
6685 | ||
355afbcd | 6686 | main () |
fecd2382 | 6687 | { |
355afbcd KR |
6688 | struct m68k_it the_ins; |
6689 | char buf[120]; | |
6690 | char *cp; | |
6691 | int n; | |
6692 | ||
6693 | m68k_ip_begin (); | |
6694 | for (;;) | |
6695 | { | |
6696 | if (!gets (buf) || !*buf) | |
6697 | break; | |
6698 | if (buf[0] == '|' || buf[1] == '.') | |
6699 | continue; | |
6700 | for (cp = buf; *cp; cp++) | |
6701 | if (*cp == '\t') | |
6702 | *cp = ' '; | |
6703 | if (is_label (buf)) | |
6704 | continue; | |
6705 | memset (&the_ins, '\0', sizeof (the_ins)); | |
6706 | m68k_ip (&the_ins, buf); | |
6707 | if (the_ins.error) | |
6708 | { | |
6709 | printf ("Error %s in %s\n", the_ins.error, buf); | |
6710 | } | |
6711 | else | |
6712 | { | |
6713 | printf ("Opcode(%d.%s): ", the_ins.numo, the_ins.args); | |
6714 | for (n = 0; n < the_ins.numo; n++) | |
6715 | printf (" 0x%x", the_ins.opcode[n] & 0xffff); | |
6716 | printf (" "); | |
6717 | print_the_insn (&the_ins.opcode[0], stdout); | |
6718 | (void) putchar ('\n'); | |
6719 | } | |
6720 | for (n = 0; n < strlen (the_ins.args) / 2; n++) | |
6721 | { | |
6722 | if (the_ins.operands[n].error) | |
6723 | { | |
6724 | printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf); | |
6725 | continue; | |
6726 | } | |
6727 | printf ("mode %d, reg %d, ", the_ins.operands[n].mode, the_ins.operands[n].reg); | |
6728 | if (the_ins.operands[n].b_const) | |
6729 | printf ("Constant: '%.*s', ", 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const, the_ins.operands[n].b_const); | |
6730 | printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg, the_ins.operands[n].isiz, the_ins.operands[n].imul); | |
6731 | if (the_ins.operands[n].b_iadd) | |
6732 | printf ("Iadd: '%.*s',", 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd, the_ins.operands[n].b_iadd); | |
6733 | (void) putchar ('\n'); | |
a39116f1 | 6734 | } |
355afbcd KR |
6735 | } |
6736 | m68k_ip_end (); | |
6737 | return 0; | |
fecd2382 RP |
6738 | } |
6739 | ||
355afbcd KR |
6740 | is_label (str) |
6741 | char *str; | |
fecd2382 | 6742 | { |
355afbcd KR |
6743 | while (*str == ' ') |
6744 | str++; | |
6745 | while (*str && *str != ' ') | |
6746 | str++; | |
6747 | if (str[-1] == ':' || str[1] == '=') | |
6748 | return 1; | |
6749 | return 0; | |
fecd2382 RP |
6750 | } |
6751 | ||
6752 | #endif | |
6753 | ||
6754 | /* Possible states for relaxation: | |
6d27d3a2 | 6755 | |
a39116f1 RP |
6756 | 0 0 branch offset byte (bra, etc) |
6757 | 0 1 word | |
6758 | 0 2 long | |
6d27d3a2 | 6759 | |
a39116f1 RP |
6760 | 1 0 indexed offsets byte a0@(32,d4:w:1) etc |
6761 | 1 1 word | |
6762 | 1 2 long | |
6d27d3a2 | 6763 | |
a39116f1 RP |
6764 | 2 0 two-offset index word-word a0@(32,d4)@(45) etc |
6765 | 2 1 word-long | |
6766 | 2 2 long-word | |
6767 | 2 3 long-long | |
6d27d3a2 | 6768 | |
a39116f1 | 6769 | */ |
fecd2382 | 6770 | |
fecd2382 RP |
6771 | /* We have no need to default values of symbols. */ |
6772 | ||
6773 | /* ARGSUSED */ | |
6774 | symbolS * | |
355afbcd KR |
6775 | md_undefined_symbol (name) |
6776 | char *name; | |
fecd2382 | 6777 | { |
355afbcd | 6778 | return 0; |
fecd2382 RP |
6779 | } |
6780 | ||
fecd2382 | 6781 | /* Round up a section size to the appropriate boundary. */ |
025b0302 | 6782 | valueT |
355afbcd KR |
6783 | md_section_align (segment, size) |
6784 | segT segment; | |
025b0302 | 6785 | valueT size; |
fecd2382 | 6786 | { |
355afbcd | 6787 | return size; /* Byte alignment is fine */ |
fecd2382 RP |
6788 | } |
6789 | ||
6790 | /* Exactly what point is a PC-relative offset relative TO? | |
5f8cb05e ILT |
6791 | On the 68k, it is relative to the address of the first extension |
6792 | word. The difference between the addresses of the offset and the | |
6793 | first extension word is stored in fx_pcrel_adjust. */ | |
fecd2382 | 6794 | long |
355afbcd KR |
6795 | md_pcrel_from (fixP) |
6796 | fixS *fixP; | |
fecd2382 | 6797 | { |
b4ec75e0 ILT |
6798 | int adjust; |
6799 | ||
6800 | /* Because fx_pcrel_adjust is a char, and may be unsigned, we store | |
6801 | -1 as 64. */ | |
6802 | adjust = fixP->fx_pcrel_adjust; | |
6803 | if (adjust == 64) | |
6804 | adjust = -1; | |
6805 | return fixP->fx_where + fixP->fx_frag->fr_address - adjust; | |
fecd2382 RP |
6806 | } |
6807 | ||
49864cfa | 6808 | #ifndef BFD_ASSEMBLER |
9ad5755f | 6809 | /*ARGSUSED*/ |
355afbcd | 6810 | void |
9ad5755f KR |
6811 | tc_coff_symbol_emit_hook (ignore) |
6812 | symbolS *ignore; | |
3ad9ec6a ILT |
6813 | { |
6814 | } | |
6815 | ||
355afbcd KR |
6816 | int |
6817 | tc_coff_sizemachdep (frag) | |
6818 | fragS *frag; | |
3ad9ec6a | 6819 | { |
355afbcd KR |
6820 | switch (frag->fr_subtype & 0x3) |
6821 | { | |
6822 | case BYTE: | |
6823 | return 1; | |
6824 | case SHORT: | |
6825 | return 2; | |
6826 | case LONG: | |
6827 | return 4; | |
6828 | default: | |
6829 | abort (); | |
064ba683 | 6830 | return 0; |
355afbcd | 6831 | } |
3ad9ec6a | 6832 | } |
49864cfa | 6833 | #endif |
355afbcd | 6834 | |
fecd2382 | 6835 | /* end of tc-m68k.c */ |