1 /* tc-m68k.c -- Assemble for the m68k family
2 Copyright (C) 1987-2014 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
22 #include "safe-ctype.h"
25 #include "dwarf2dbg.h"
26 #include "dw2gencfi.h"
28 #include "opcode/m68k.h"
29 #include "m68k-parse.h"
40 static void m68k_elf_cons (int);
43 /* This string holds the chars that always start a comment. If the
44 pre-processor is disabled, these aren't very useful. The macro
45 tc_comment_chars points to this. We use this, rather than the
46 usual comment_chars, so that the --bitwise-or option will work. */
47 #if defined (TE_SVR4) || defined (TE_DELTA)
48 const char *m68k_comment_chars = "|#";
50 const char *m68k_comment_chars = "|";
53 /* This array holds the chars that only start a comment at the beginning of
54 a line. If the line seems to have the form '# 123 filename'
55 .line and .file directives will appear in the pre-processed output */
56 /* Note that input_file.c hand checks for '#' at the beginning of the
57 first line of the input file. This is because the compiler outputs
58 #NO_APP at the beginning of its output. */
59 /* Also note that comments like this one will always work. */
60 const char line_comment_chars[] = "#*";
62 const char line_separator_chars[] = ";";
64 /* Chars that can be used to separate mant from exp in floating point nums. */
65 const char EXP_CHARS[] = "eE";
67 /* Chars that mean this number is a floating point constant, as
68 in "0f12.456" or "0d1.2345e12". */
70 const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
72 /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
73 changed in read.c . Ideally it shouldn't have to know about it at all,
74 but nothing is ideal around here. */
76 /* Are we trying to generate PIC code? If so, absolute references
77 ought to be made into linkage table references or pc-relative
78 references. Not implemented. For ELF there are other means
79 to denote pic relocations. */
82 static int flag_short_refs; /* -l option. */
83 static int flag_long_jumps; /* -S option. */
84 static int flag_keep_pcrel; /* --pcrel option. */
86 #ifdef REGISTER_PREFIX_OPTIONAL
87 int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL;
89 int flag_reg_prefix_optional;
92 /* Whether --register-prefix-optional was used on the command line. */
93 static int reg_prefix_optional_seen;
95 /* The floating point coprocessor to use by default. */
96 static enum m68k_register m68k_float_copnum = COP1;
98 /* If this is non-zero, then references to number(%pc) will be taken
99 to refer to number, rather than to %pc + number. */
100 static int m68k_abspcadd;
102 /* If this is non-zero, then the quick forms of the move, add, and sub
103 instructions are used when possible. */
104 static int m68k_quick = 1;
106 /* If this is non-zero, then if the size is not specified for a base
107 or outer displacement, the assembler assumes that the size should
109 static int m68k_rel32 = 1;
111 /* This is non-zero if m68k_rel32 was set from the command line. */
112 static int m68k_rel32_from_cmdline;
114 /* The default width to use for an index register when using a base
116 static enum m68k_size m68k_index_width_default = SIZE_LONG;
118 /* We want to warn if any text labels are misaligned. In order to get
119 the right line number, we need to record the line number for each
123 struct label_line *next;
130 /* The list of labels. */
132 static struct label_line *labels;
134 /* The current label. */
136 static struct label_line *current_label;
138 /* Pointer to list holding the opcodes sorted by name. */
139 static struct m68k_opcode const ** m68k_sorted_opcodes;
141 /* Its an arbitrary name: This means I don't approve of it.
143 static struct obstack robyn;
147 const char *m_operands;
148 unsigned long m_opcode;
152 struct m68k_incant *m_next;
155 #define getone(x) ((((x)->m_opcode)>>16)&0xffff)
156 #define gettwo(x) (((x)->m_opcode)&0xffff)
158 static const enum m68k_register m68000_ctrl[] = { 0 };
159 static const enum m68k_register m68010_ctrl[] = {
163 static const enum m68k_register m68020_ctrl[] = {
164 SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP,
167 static const enum m68k_register m68040_ctrl[] = {
168 SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1,
169 USP, VBR, MSP, ISP, MMUSR, URP, SRP,
172 static const enum m68k_register m68060_ctrl[] = {
173 SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR,
174 USP, VBR, URP, SRP, PCR,
177 static const enum m68k_register mcf_ctrl[] = {
178 CACR, TC, ACR0, ACR1, ACR2, ACR3, VBR, ROMBAR,
179 RAMBAR0, RAMBAR1, RAMBAR, MBAR,
182 static const enum m68k_register mcf51_ctrl[] = {
186 static const enum m68k_register mcf5206_ctrl[] = {
187 CACR, ACR0, ACR1, VBR, RAMBAR0, RAMBAR_ALT, MBAR,
190 static const enum m68k_register mcf5208_ctrl[] = {
191 CACR, ACR0, ACR1, VBR, RAMBAR, RAMBAR1,
194 static const enum m68k_register mcf5210a_ctrl[] = {
195 VBR, CACR, ACR0, ACR1, ROMBAR, RAMBAR, RAMBAR1, MBAR,
198 static const enum m68k_register mcf5213_ctrl[] = {
199 VBR, RAMBAR, RAMBAR1, FLASHBAR,
202 static const enum m68k_register mcf5216_ctrl[] = {
203 VBR, CACR, ACR0, ACR1, FLASHBAR, RAMBAR, RAMBAR1,
206 static const enum m68k_register mcf5221x_ctrl[] = {
207 VBR, FLASHBAR, RAMBAR, RAMBAR1,
210 static const enum m68k_register mcf52223_ctrl[] = {
211 VBR, FLASHBAR, RAMBAR, RAMBAR1,
214 static const enum m68k_register mcf52235_ctrl[] = {
215 VBR, FLASHBAR, RAMBAR, RAMBAR1,
218 static const enum m68k_register mcf5225_ctrl[] = {
219 VBR, CACR, ACR0, ACR1, FLASHBAR, RAMBAR, MBAR, RAMBAR1,
222 static const enum m68k_register mcf52259_ctrl[] = {
223 VBR, FLASHBAR, RAMBAR, RAMBAR1,
226 static const enum m68k_register mcf52277_ctrl[] = {
227 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
230 static const enum m68k_register mcf5235_ctrl[] = {
231 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
234 static const enum m68k_register mcf5249_ctrl[] = {
235 VBR, CACR, ACR0, ACR1, RAMBAR0, RAMBAR1, RAMBAR, MBAR, MBAR2,
238 static const enum m68k_register mcf5250_ctrl[] = {
242 static const enum m68k_register mcf5253_ctrl[] = {
243 VBR, CACR, ACR0, ACR1, RAMBAR0, RAMBAR1, RAMBAR, MBAR, MBAR2,
246 static const enum m68k_register mcf5271_ctrl[] = {
247 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
250 static const enum m68k_register mcf5272_ctrl[] = {
251 VBR, CACR, ACR0, ACR1, ROMBAR, RAMBAR_ALT, RAMBAR0, MBAR,
254 static const enum m68k_register mcf5275_ctrl[] = {
255 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
258 static const enum m68k_register mcf5282_ctrl[] = {
259 VBR, CACR, ACR0, ACR1, FLASHBAR, RAMBAR, RAMBAR1,
262 static const enum m68k_register mcf53017_ctrl[] = {
263 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
266 static const enum m68k_register mcf5307_ctrl[] = {
267 VBR, CACR, ACR0, ACR1, RAMBAR0, RAMBAR_ALT, MBAR,
270 static const enum m68k_register mcf5329_ctrl[] = {
271 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
274 static const enum m68k_register mcf5373_ctrl[] = {
275 VBR, CACR, ACR0, ACR1, RAMBAR, RAMBAR1,
278 static const enum m68k_register mcfv4e_ctrl[] = {
279 CACR, ASID, ACR0, ACR1, ACR2, ACR3, MMUBAR,
280 VBR, PC, ROMBAR0, ROMBAR1, RAMBAR0, RAMBAR1,
282 MPCR /* Multiprocessor Control register */,
283 EDRAMBAR /* Embedded DRAM Base Address Register */,
284 /* Permutation control registers. */
285 PCR1U0, PCR1L0, PCR1U1, PCR1L1, PCR2U0, PCR2L0, PCR2U1, PCR2L1,
286 PCR3U0, PCR3L0, PCR3U1, PCR3L1,
288 TC /* ASID */, BUSCR /* MMUBAR */,
289 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
290 MBAR1 /* MBAR */, MBAR2 /* SECMBAR */, MBAR0 /* SECMBAR */,
291 ROMBAR /* ROMBAR0 */, RAMBAR /* RAMBAR1 */,
294 static const enum m68k_register mcf5407_ctrl[] = {
295 CACR, ASID, ACR0, ACR1, ACR2, ACR3,
296 VBR, PC, RAMBAR0, RAMBAR1, MBAR,
299 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
300 MBAR1 /* MBAR */, RAMBAR /* RAMBAR1 */,
303 static const enum m68k_register mcf54418_ctrl[] = {
304 CACR, ASID, ACR0, ACR1, ACR2, ACR3, ACR4, ACR5, ACR6, ACR7, MMUBAR, RGPIOBAR,
307 TC /* ASID */, BUSCR /* MMUBAR */,
308 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
309 RAMBAR /* RAMBAR1 */,
312 static const enum m68k_register mcf54455_ctrl[] = {
313 CACR, ASID, ACR0, ACR1, ACR2, ACR3, MMUBAR,
316 TC /* ASID */, BUSCR /* MMUBAR */,
317 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
318 RAMBAR /* RAMBAR1 */,
321 static const enum m68k_register mcf5475_ctrl[] = {
322 CACR, ASID, ACR0, ACR1, ACR2, ACR3, MMUBAR,
323 VBR, PC, RAMBAR0, RAMBAR1, MBAR,
325 TC /* ASID */, BUSCR /* MMUBAR */,
326 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
327 MBAR1 /* MBAR */, RAMBAR /* RAMBAR1 */,
330 static const enum m68k_register mcf5485_ctrl[] = {
331 CACR, ASID, ACR0, ACR1, ACR2, ACR3, MMUBAR,
332 VBR, PC, RAMBAR0, RAMBAR1, MBAR,
334 TC /* ASID */, BUSCR /* MMUBAR */,
335 ITT0 /* ACR0 */, ITT1 /* ACR1 */, DTT0 /* ACR2 */, DTT1 /* ACR3 */,
336 MBAR1 /* MBAR */, RAMBAR /* RAMBAR1 */,
339 static const enum m68k_register fido_ctrl[] = {
340 SFC, DFC, USP, VBR, CAC, MBO,
343 #define cpu32_ctrl m68010_ctrl
345 static const enum m68k_register *control_regs;
347 /* Internal form of a 68020 instruction. */
351 const char *args; /* List of opcode info. */
354 int numo; /* Number of shorts in opcode. */
357 struct m68k_op operands[6];
359 int nexp; /* Number of exprs in use. */
360 struct m68k_exp exprs[4];
362 int nfrag; /* Number of frags we have to produce. */
365 int fragoff; /* Where in the current opcode the frag ends. */
372 int nrel; /* Num of reloc strucs in use. */
379 /* In a pc relative address the difference between the address
380 of the offset and the address that the offset is relative
381 to. This depends on the addressing mode. Basically this
382 is the value to put in the offset field to address the
383 first byte of the offset, without regarding the special
384 significance of some values (in the branch instruction, for
388 /* Whether this expression needs special pic relocation, and if
390 enum pic_relocation pic_reloc;
393 reloc[5]; /* Five is enough??? */
396 #define cpu_of_arch(x) ((x) & (m68000up | mcfisa_a | fido_a))
397 #define float_of_arch(x) ((x) & mfloat)
398 #define mmu_of_arch(x) ((x) & mmmu)
399 #define arch_coldfire_p(x) ((x) & mcfisa_a)
400 #define arch_coldfire_fpu(x) ((x) & cfloat)
402 /* Macros for determining if cpu supports a specific addressing mode. */
403 #define HAVE_LONG_DISP(x) \
404 ((x) & (m68020|m68030|m68040|m68060|cpu32|fido_a|mcfisa_b|mcfisa_c))
405 #define HAVE_LONG_CALL(x) \
406 ((x) & (m68020|m68030|m68040|m68060|cpu32|fido_a|mcfisa_b|mcfisa_c))
407 #define HAVE_LONG_COND(x) \
408 ((x) & (m68020|m68030|m68040|m68060|cpu32|fido_a|mcfisa_b|mcfisa_c))
409 #define HAVE_LONG_BRANCH(x) \
410 ((x) & (m68020|m68030|m68040|m68060|cpu32|fido_a|mcfisa_b))
411 #define LONG_BRANCH_VIA_COND(x) (HAVE_LONG_COND(x) && !HAVE_LONG_BRANCH(x))
413 static struct m68k_it the_ins; /* The instruction being assembled. */
415 #define op(ex) ((ex)->exp.X_op)
416 #define adds(ex) ((ex)->exp.X_add_symbol)
417 #define subs(ex) ((ex)->exp.X_op_symbol)
418 #define offs(ex) ((ex)->exp.X_add_number)
420 /* Macros for adding things to the m68k_it struct. */
421 #define addword(w) (the_ins.opcode[the_ins.numo++] = (w))
423 /* Like addword, but goes BEFORE general operands. */
426 insop (int w, const struct m68k_incant *opcode)
429 for (z = the_ins.numo; z > opcode->m_codenum; --z)
430 the_ins.opcode[z] = the_ins.opcode[z - 1];
431 for (z = 0; z < the_ins.nrel; z++)
432 the_ins.reloc[z].n += 2;
433 for (z = 0; z < the_ins.nfrag; z++)
434 the_ins.fragb[z].fragoff++;
435 the_ins.opcode[opcode->m_codenum] = w;
439 /* The numo+1 kludge is so we can hit the low order byte of the prev word.
442 add_fix (int width, struct m68k_exp *exp, int pc_rel, int pc_fix)
444 the_ins.reloc[the_ins.nrel].n = (width == 'B' || width == '3'
445 ? the_ins.numo * 2 - 1
447 ? the_ins.numo * 2 + 1
448 : the_ins.numo * 2));
449 the_ins.reloc[the_ins.nrel].exp = exp->exp;
450 the_ins.reloc[the_ins.nrel].wid = width;
451 the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix;
453 the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc;
455 the_ins.reloc[the_ins.nrel++].pcrel = pc_rel;
458 /* Cause an extra frag to be generated here, inserting up to 10 bytes
459 (that value is chosen in the frag_var call in md_assemble). TYPE
460 is the subtype of the frag to be generated; its primary type is
461 rs_machine_dependent.
463 The TYPE parameter is also used by md_convert_frag_1 and
464 md_estimate_size_before_relax. The appropriate type of fixup will
465 be emitted by md_convert_frag_1.
467 ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */
469 add_frag (symbolS *add, offsetT off, int type)
471 the_ins.fragb[the_ins.nfrag].fragoff = the_ins.numo;
472 the_ins.fragb[the_ins.nfrag].fadd = add;
473 the_ins.fragb[the_ins.nfrag].foff = off;
474 the_ins.fragb[the_ins.nfrag++].fragty = type;
478 (op (ex) != O_constant && op (ex) != O_big)
480 static char *crack_operand (char *str, struct m68k_op *opP);
481 static int get_num (struct m68k_exp *exp, int ok);
482 static int reverse_16_bits (int in);
483 static int reverse_8_bits (int in);
484 static void install_gen_operand (int mode, int val);
485 static void install_operand (int mode, int val);
486 static void s_bss (int);
487 static void s_data1 (int);
488 static void s_data2 (int);
489 static void s_even (int);
490 static void s_proc (int);
491 static void s_chip (int);
492 static void s_fopt (int);
493 static void s_opt (int);
494 static void s_reg (int);
495 static void s_restore (int);
496 static void s_save (int);
497 static void s_mri_if (int);
498 static void s_mri_else (int);
499 static void s_mri_endi (int);
500 static void s_mri_break (int);
501 static void s_mri_next (int);
502 static void s_mri_for (int);
503 static void s_mri_endf (int);
504 static void s_mri_repeat (int);
505 static void s_mri_until (int);
506 static void s_mri_while (int);
507 static void s_mri_endw (int);
508 static void s_m68k_cpu (int);
509 static void s_m68k_arch (int);
513 unsigned long arch; /* Architecture features. */
514 const enum m68k_register *control_regs; /* Control regs on chip */
515 const char *name; /* Name */
516 int alias; /* Alias for a cannonical name. If 1, then
517 succeeds canonical name, if -1 then
518 succeeds canonical name, if <-1 ||>1 this is a
519 deprecated name, and the next/previous name
523 /* We hold flags for features explicitly enabled and explicitly
525 static int current_architecture;
526 static int not_current_architecture;
527 static const struct m68k_cpu *selected_arch;
528 static const struct m68k_cpu *selected_cpu;
529 static int initialized;
531 /* Architecture models. */
532 static const struct m68k_cpu m68k_archs[] =
534 {m68000, m68000_ctrl, "68000", 0},
535 {m68010, m68010_ctrl, "68010", 0},
536 {m68020|m68881|m68851, m68020_ctrl, "68020", 0},
537 {m68030|m68881|m68851, m68020_ctrl, "68030", 0},
538 {m68040, m68040_ctrl, "68040", 0},
539 {m68060, m68060_ctrl, "68060", 0},
540 {cpu32|m68881, cpu32_ctrl, "cpu32", 0},
541 {fido_a, fido_ctrl, "fidoa", 0},
542 {mcfisa_a|mcfhwdiv, NULL, "isaa", 0},
543 {mcfisa_a|mcfhwdiv|mcfisa_aa|mcfusp, NULL, "isaaplus", 0},
544 {mcfisa_a|mcfhwdiv|mcfisa_b|mcfusp, NULL, "isab", 0},
545 {mcfisa_a|mcfhwdiv|mcfisa_c|mcfusp, NULL, "isac", 0},
546 {mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac|mcfusp, mcf_ctrl, "cfv4", 0},
547 {mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcfv4e_ctrl, "cfv4e", 0},
551 /* For -mno-mac we want to turn off all types of mac. */
552 static const unsigned no_mac = mcfmac | mcfemac;
554 /* Architecture extensions, here 'alias' -1 for m68k, +1 for cf and 0
556 static const struct m68k_cpu m68k_extensions[] =
558 {m68851, NULL, "68851", -1},
559 {m68881, NULL, "68881", -1},
560 {m68881, NULL, "68882", -1},
562 {cfloat|m68881, NULL, "float", 0},
564 {mcfhwdiv, NULL, "div", 1},
565 {mcfusp, NULL, "usp", 1},
566 {mcfmac, (void *)&no_mac, "mac", 1},
567 {mcfemac, NULL, "emac", 1},
573 static const struct m68k_cpu m68k_cpus[] =
575 {m68000, m68000_ctrl, "68000", 0},
576 {m68000, m68000_ctrl, "68ec000", 1},
577 {m68000, m68000_ctrl, "68hc000", 1},
578 {m68000, m68000_ctrl, "68hc001", 1},
579 {m68000, m68000_ctrl, "68008", 1},
580 {m68000, m68000_ctrl, "68302", 1},
581 {m68000, m68000_ctrl, "68306", 1},
582 {m68000, m68000_ctrl, "68307", 1},
583 {m68000, m68000_ctrl, "68322", 1},
584 {m68000, m68000_ctrl, "68356", 1},
585 {m68010, m68010_ctrl, "68010", 0},
586 {m68020|m68881|m68851, m68020_ctrl, "68020", 0},
587 {m68020|m68881|m68851, m68020_ctrl, "68k", 1},
588 {m68020|m68881|m68851, m68020_ctrl, "68ec020", 1},
589 {m68030|m68881|m68851, m68020_ctrl, "68030", 0},
590 {m68030|m68881|m68851, m68020_ctrl, "68ec030", 1},
591 {m68040, m68040_ctrl, "68040", 0},
592 {m68040, m68040_ctrl, "68ec040", 1},
593 {m68060, m68060_ctrl, "68060", 0},
594 {m68060, m68060_ctrl, "68ec060", 1},
596 {cpu32|m68881, cpu32_ctrl, "cpu32", 0},
597 {cpu32|m68881, cpu32_ctrl, "68330", 1},
598 {cpu32|m68881, cpu32_ctrl, "68331", 1},
599 {cpu32|m68881, cpu32_ctrl, "68332", 1},
600 {cpu32|m68881, cpu32_ctrl, "68333", 1},
601 {cpu32|m68881, cpu32_ctrl, "68334", 1},
602 {cpu32|m68881, cpu32_ctrl, "68336", 1},
603 {cpu32|m68881, cpu32_ctrl, "68340", 1},
604 {cpu32|m68881, cpu32_ctrl, "68341", 1},
605 {cpu32|m68881, cpu32_ctrl, "68349", 1},
606 {cpu32|m68881, cpu32_ctrl, "68360", 1},
608 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51", 0},
609 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51ac", 1},
610 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51ag", 1},
611 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51cn", 1},
612 {mcfisa_a|mcfisa_c|mcfusp|mcfmac, mcf51_ctrl, "51em", 1},
613 {mcfisa_a|mcfisa_c|mcfusp|mcfmac, mcf51_ctrl, "51je", 1},
614 {mcfisa_a|mcfisa_c|mcfusp|mcfemac, mcf51_ctrl, "51jf", 1},
615 {mcfisa_a|mcfisa_c|mcfusp|mcfemac, mcf51_ctrl, "51jg", 1},
616 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51jm", 1},
617 {mcfisa_a|mcfisa_c|mcfusp|mcfmac, mcf51_ctrl, "51mm", 1},
618 {mcfisa_a|mcfisa_c|mcfusp, mcf51_ctrl, "51qe", 1},
619 {mcfisa_a|mcfisa_c|mcfusp|mcfemac, mcf51_ctrl, "51qm", 1},
621 {mcfisa_a, mcf_ctrl, "5200", 0},
622 {mcfisa_a, mcf_ctrl, "5202", 1},
623 {mcfisa_a, mcf_ctrl, "5204", 1},
624 {mcfisa_a, mcf5206_ctrl, "5206", 1},
626 {mcfisa_a|mcfhwdiv|mcfmac, mcf5206_ctrl, "5206e", 0},
628 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5208_ctrl, "5207", -1},
629 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5208_ctrl, "5208", 0},
631 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5210a_ctrl, "5210a", 0},
632 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5210a_ctrl, "5211a", 1},
634 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5211", -1},
635 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5212", -1},
636 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5213_ctrl, "5213", 0},
638 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "5214", -1},
639 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "5216", 0},
640 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5216_ctrl, "521x", 2},
642 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5221x_ctrl, "5221x", 0},
644 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf52223_ctrl, "52221", -1},
645 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf52223_ctrl, "52223", 0},
647 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52235_ctrl, "52230", -1},
648 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52235_ctrl, "52233", -1},
649 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52235_ctrl, "52234", -1},
650 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52235_ctrl, "52235", 0},
652 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5225_ctrl, "5224", -1},
653 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfmac|mcfusp, mcf5225_ctrl, "5225", 0},
655 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52277_ctrl, "52274", -1},
656 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52277_ctrl, "52277", 0},
658 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5232", -1},
659 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5233", -1},
660 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5234", -1},
661 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "5235", -1},
662 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5235_ctrl, "523x", 0},
664 {mcfisa_a|mcfhwdiv|mcfemac, mcf5249_ctrl, "5249", 0},
665 {mcfisa_a|mcfhwdiv|mcfemac, mcf5250_ctrl, "5250", 0},
666 {mcfisa_a|mcfhwdiv|mcfemac, mcf5253_ctrl, "5253", 0},
668 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52252", -1},
669 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52254", -1},
670 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52255", -1},
671 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52256", -1},
672 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52258", -1},
673 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf52259_ctrl, "52259", 0},
675 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5271_ctrl, "5270", -1},
676 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5271_ctrl, "5271", 0},
678 {mcfisa_a|mcfhwdiv|mcfmac, mcf5272_ctrl, "5272", 0},
680 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5275_ctrl, "5274", -1},
681 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5275_ctrl, "5275", 0},
683 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5280", -1},
684 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5281", -1},
685 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "5282", -1},
686 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5282_ctrl, "528x", 0},
688 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53011", -1},
689 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53012", -1},
690 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53013", -1},
691 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53014", -1},
692 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53015", -1},
693 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53016", -1},
694 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf53017_ctrl, "53017", 0},
696 {mcfisa_a|mcfhwdiv|mcfmac, mcf5307_ctrl, "5307", 0},
698 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5327", -1},
699 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5328", -1},
700 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "5329", -1},
701 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5329_ctrl, "532x", 0},
703 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "5372", -1},
704 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "5373", -1},
705 {mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf5373_ctrl, "537x", 0},
707 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfmac, mcf5407_ctrl, "5407",0},
709 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54418_ctrl, "54410", -1},
710 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54418_ctrl, "54415", -1},
711 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54418_ctrl, "54416", -1},
712 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54418_ctrl, "54417", -1},
713 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54418_ctrl, "54418", 0},
715 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54450", -1},
716 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54451", -1},
717 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54452", -1},
718 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54453", -1},
719 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54454", -1},
720 {mcfisa_a|mcfisa_c|mcfhwdiv|mcfemac|mcfusp, mcf54455_ctrl, "54455", 0},
722 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5470", -1},
723 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5471", -1},
724 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5472", -1},
725 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5473", -1},
726 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5474", -1},
727 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "5475", -1},
728 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5475_ctrl, "547x", 0},
730 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5480", -1},
731 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5481", -1},
732 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5482", -1},
733 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5483", -1},
734 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5484", -1},
735 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "5485", -1},
736 {mcfisa_a|mcfisa_b|mcfhwdiv|mcfemac|mcfusp|cfloat, mcf5485_ctrl, "548x", 0},
738 {fido_a, fido_ctrl, "fidoa", 0},
739 {fido_a, fido_ctrl, "fido", 1},
744 static const struct m68k_cpu *m68k_lookup_cpu
745 (const char *, const struct m68k_cpu *, int, int *);
746 static int m68k_set_arch (const char *, int, int);
747 static int m68k_set_cpu (const char *, int, int);
748 static int m68k_set_extension (const char *, int, int);
749 static void m68k_init_arch (void);
751 /* This is the assembler relaxation table for m68k. m68k is a rich CISC
752 architecture and we have a lot of relaxation modes. */
754 /* Macros used in the relaxation code. */
755 #define TAB(x,y) (((x) << 2) + (y))
756 #define TABTYPE(x) ((x) >> 2)
758 /* Relaxation states. */
764 /* Here are all the relaxation modes we support. First we can relax ordinary
765 branches. On 68020 and higher and on CPU32 all branch instructions take
766 three forms, so on these CPUs all branches always remain as such. When we
767 have to expand to the LONG form on a 68000, though, we substitute an
768 absolute jump instead. This is a direct replacement for unconditional
769 branches and a branch over a jump for conditional branches. However, if the
770 user requires PIC and disables this with --pcrel, we can only relax between
771 BYTE and SHORT forms, punting if that isn't enough. This gives us four
772 different relaxation modes for branches: */
774 #define BRANCHBWL 0 /* Branch byte, word, or long. */
775 #define BRABSJUNC 1 /* Absolute jump for LONG, unconditional. */
776 #define BRABSJCOND 2 /* Absolute jump for LONG, conditional. */
777 #define BRANCHBW 3 /* Branch byte or word. */
779 /* We also relax coprocessor branches and DBcc's. All CPUs that support
780 coprocessor branches support them in word and long forms, so we have only
781 one relaxation mode for them. DBcc's are word only on all CPUs. We can
782 relax them to the LONG form with a branch-around sequence. This sequence
783 can use a long branch (if available) or an absolute jump (if acceptable).
784 This gives us two relaxation modes. If long branches are not available and
785 absolute jumps are not acceptable, we don't relax DBcc's. */
787 #define FBRANCH 4 /* Coprocessor branch. */
788 #define DBCCLBR 5 /* DBcc relaxable with a long branch. */
789 #define DBCCABSJ 6 /* DBcc relaxable with an absolute jump. */
791 /* That's all for instruction relaxation. However, we also relax PC-relative
792 operands. Specifically, we have three operand relaxation modes. On the
793 68000 PC-relative operands can only be 16-bit, but on 68020 and higher and
794 on CPU32 they may be 16-bit or 32-bit. For the latter we relax between the
795 two. Also PC+displacement+index operands in their simple form (with a non-
796 suppressed index without memory indirection) are supported on all CPUs, but
797 on the 68000 the displacement can be 8-bit only, whereas on 68020 and higher
798 and on CPU32 we relax it to SHORT and LONG forms as well using the extended
799 form of the PC+displacement+index operand. Finally, some absolute operands
800 can be relaxed down to 16-bit PC-relative. */
802 #define PCREL1632 7 /* 16-bit or 32-bit PC-relative. */
803 #define PCINDEX 8 /* PC + displacement + index. */
804 #define ABSTOPCREL 9 /* Absolute relax down to 16-bit PC-relative. */
806 /* This relaxation is required for branches where there is no long
807 branch and we are in pcrel mode. We generate a bne/beq pair. */
808 #define BRANCHBWPL 10 /* Branch byte, word or pair of longs
811 /* Note that calls to frag_var need to specify the maximum expansion
812 needed; this is currently 12 bytes for bne/beq pair. */
813 #define FRAG_VAR_SIZE 12
816 How far Forward this mode will reach:
817 How far Backward this mode will reach:
818 How many bytes this mode will add to the size of the frag
819 Which mode to go to if the offset won't fit in this one
821 Please check tc-m68k.h:md_prepare_relax_scan if changing this table. */
822 relax_typeS md_relax_table[] =
824 { 127, -128, 0, TAB (BRANCHBWL, SHORT) },
825 { 32767, -32768, 2, TAB (BRANCHBWL, LONG) },
829 { 127, -128, 0, TAB (BRABSJUNC, SHORT) },
830 { 32767, -32768, 2, TAB (BRABSJUNC, LONG) },
834 { 127, -128, 0, TAB (BRABSJCOND, SHORT) },
835 { 32767, -32768, 2, TAB (BRABSJCOND, LONG) },
839 { 127, -128, 0, TAB (BRANCHBW, SHORT) },
844 { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE. */
845 { 32767, -32768, 2, TAB (FBRANCH, LONG) },
849 { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */
850 { 32767, -32768, 2, TAB (DBCCLBR, LONG) },
854 { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */
855 { 32767, -32768, 2, TAB (DBCCABSJ, LONG) },
859 { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE. */
860 { 32767, -32768, 2, TAB (PCREL1632, LONG) },
864 { 125, -130, 0, TAB (PCINDEX, SHORT) },
865 { 32765, -32770, 2, TAB (PCINDEX, LONG) },
869 { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE. */
870 { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) },
874 { 127, -128, 0, TAB (BRANCHBWPL, SHORT) },
875 { 32767, -32768, 2, TAB (BRANCHBWPL, LONG) },
880 /* These are the machine dependent pseudo-ops. These are included so
881 the assembler can work on the output from the SUN C compiler, which
884 /* This table describes all the machine specific pseudo-ops the assembler
885 has to support. The fields are:
886 pseudo-op name without dot
887 function to call to execute this pseudo-op
888 Integer arg to pass to the function. */
889 const pseudo_typeS md_pseudo_table[] =
891 {"data1", s_data1, 0},
892 {"data2", s_data2, 0},
895 {"skip", s_space, 0},
897 #if defined (TE_SUN3) || defined (OBJ_ELF)
898 {"align", s_align_bytes, 0},
901 {"swbeg", s_ignore, 0},
902 {"long", m68k_elf_cons, 4},
904 {"extend", float_cons, 'x'},
905 {"ldouble", float_cons, 'x'},
907 {"arch", s_m68k_arch, 0},
908 {"cpu", s_m68k_cpu, 0},
910 /* The following pseudo-ops are supported for MRI compatibility. */
912 {"comline", s_space, 1},
914 {"mask2", s_ignore, 0},
917 {"restore", s_restore, 0},
921 {"if.b", s_mri_if, 'b'},
922 {"if.w", s_mri_if, 'w'},
923 {"if.l", s_mri_if, 'l'},
924 {"else", s_mri_else, 0},
925 {"else.s", s_mri_else, 's'},
926 {"else.l", s_mri_else, 'l'},
927 {"endi", s_mri_endi, 0},
928 {"break", s_mri_break, 0},
929 {"break.s", s_mri_break, 's'},
930 {"break.l", s_mri_break, 'l'},
931 {"next", s_mri_next, 0},
932 {"next.s", s_mri_next, 's'},
933 {"next.l", s_mri_next, 'l'},
934 {"for", s_mri_for, 0},
935 {"for.b", s_mri_for, 'b'},
936 {"for.w", s_mri_for, 'w'},
937 {"for.l", s_mri_for, 'l'},
938 {"endf", s_mri_endf, 0},
939 {"repeat", s_mri_repeat, 0},
940 {"until", s_mri_until, 0},
941 {"until.b", s_mri_until, 'b'},
942 {"until.w", s_mri_until, 'w'},
943 {"until.l", s_mri_until, 'l'},
944 {"while", s_mri_while, 0},
945 {"while.b", s_mri_while, 'b'},
946 {"while.w", s_mri_while, 'w'},
947 {"while.l", s_mri_while, 'l'},
948 {"endw", s_mri_endw, 0},
953 /* The mote pseudo ops are put into the opcode table, since they
954 don't start with a . they look like opcodes to gas. */
956 const pseudo_typeS mote_pseudo_table[] =
969 {"xdef", s_globl, 0},
971 {"align", s_align_bytes, 0},
973 {"align", s_align_ptwo, 0},
976 {"sect", obj_coff_section, 0},
977 {"section", obj_coff_section, 0},
982 /* Truncate and sign-extend at 32 bits, so that building on a 64-bit host
983 gives identical results to a 32-bit host. */
984 #define TRUNC(X) ((valueT) (X) & 0xffffffff)
985 #define SEXT(X) ((TRUNC (X) ^ 0x80000000) - 0x80000000)
987 #define issbyte(x) ((valueT) SEXT (x) + 0x80 < 0x100)
988 #define isubyte(x) ((valueT) TRUNC (x) < 0x100)
989 #define issword(x) ((valueT) SEXT (x) + 0x8000 < 0x10000)
990 #define isuword(x) ((valueT) TRUNC (x) < 0x10000)
992 #define isbyte(x) ((valueT) SEXT (x) + 0xff < 0x1ff)
993 #define isword(x) ((valueT) SEXT (x) + 0xffff < 0x1ffff)
994 #define islong(x) (1)
996 static char notend_table[256];
997 static char alt_notend_table[256];
999 (! (notend_table[(unsigned char) *s] \
1001 && alt_notend_table[(unsigned char) s[1]])))
1005 /* Return zero if the reference to SYMBOL from within the same segment may
1008 /* On an ELF system, we can't relax an externally visible symbol,
1009 because it may be overridden by a shared library. However, if
1010 TARGET_OS is "elf", then we presume that we are assembling for an
1011 embedded system, in which case we don't have to worry about shared
1012 libraries, and we can relax any external sym. */
1014 #define relaxable_symbol(symbol) \
1015 (!((S_IS_EXTERNAL (symbol) && EXTERN_FORCE_RELOC) \
1016 || S_IS_WEAK (symbol)))
1018 /* Compute the relocation code for a fixup of SIZE bytes, using pc
1019 relative relocation if PCREL is non-zero. PIC says whether a special
1020 pic relocation was requested. */
1022 static bfd_reloc_code_real_type
1023 get_reloc_code (int size, int pcrel, enum pic_relocation pic)
1031 return BFD_RELOC_8_GOT_PCREL;
1033 return BFD_RELOC_16_GOT_PCREL;
1035 return BFD_RELOC_32_GOT_PCREL;
1043 return BFD_RELOC_8_GOTOFF;
1045 return BFD_RELOC_16_GOTOFF;
1047 return BFD_RELOC_32_GOTOFF;
1055 return BFD_RELOC_8_PLT_PCREL;
1057 return BFD_RELOC_16_PLT_PCREL;
1059 return BFD_RELOC_32_PLT_PCREL;
1067 return BFD_RELOC_8_PLTOFF;
1069 return BFD_RELOC_16_PLTOFF;
1071 return BFD_RELOC_32_PLTOFF;
1079 return BFD_RELOC_68K_TLS_GD8;
1081 return BFD_RELOC_68K_TLS_GD16;
1083 return BFD_RELOC_68K_TLS_GD32;
1091 return BFD_RELOC_68K_TLS_LDM8;
1093 return BFD_RELOC_68K_TLS_LDM16;
1095 return BFD_RELOC_68K_TLS_LDM32;
1103 return BFD_RELOC_68K_TLS_LDO8;
1105 return BFD_RELOC_68K_TLS_LDO16;
1107 return BFD_RELOC_68K_TLS_LDO32;
1115 return BFD_RELOC_68K_TLS_IE8;
1117 return BFD_RELOC_68K_TLS_IE16;
1119 return BFD_RELOC_68K_TLS_IE32;
1127 return BFD_RELOC_68K_TLS_LE8;
1129 return BFD_RELOC_68K_TLS_LE16;
1131 return BFD_RELOC_68K_TLS_LE32;
1141 return BFD_RELOC_8_PCREL;
1143 return BFD_RELOC_16_PCREL;
1145 return BFD_RELOC_32_PCREL;
1155 return BFD_RELOC_16;
1157 return BFD_RELOC_32;
1164 if (pic == pic_none)
1165 as_bad (_("Can not do %d byte pc-relative relocation"), size);
1167 as_bad (_("Can not do %d byte pc-relative pic relocation"), size);
1171 if (pic == pic_none)
1172 as_bad (_("Can not do %d byte relocation"), size);
1174 as_bad (_("Can not do %d byte pic relocation"), size);
1177 return BFD_RELOC_NONE;
1180 /* Here we decide which fixups can be adjusted to make them relative
1181 to the beginning of the section instead of the symbol. Basically
1182 we need to make sure that the dynamic relocations are done
1183 correctly, so in some cases we force the original symbol to be
1186 tc_m68k_fix_adjustable (fixS *fixP)
1188 /* Adjust_reloc_syms doesn't know about the GOT. */
1189 switch (fixP->fx_r_type)
1191 case BFD_RELOC_8_GOT_PCREL:
1192 case BFD_RELOC_16_GOT_PCREL:
1193 case BFD_RELOC_32_GOT_PCREL:
1194 case BFD_RELOC_8_GOTOFF:
1195 case BFD_RELOC_16_GOTOFF:
1196 case BFD_RELOC_32_GOTOFF:
1197 case BFD_RELOC_8_PLT_PCREL:
1198 case BFD_RELOC_16_PLT_PCREL:
1199 case BFD_RELOC_32_PLT_PCREL:
1200 case BFD_RELOC_8_PLTOFF:
1201 case BFD_RELOC_16_PLTOFF:
1202 case BFD_RELOC_32_PLTOFF:
1203 case BFD_RELOC_68K_TLS_GD32:
1204 case BFD_RELOC_68K_TLS_GD16:
1205 case BFD_RELOC_68K_TLS_GD8:
1206 case BFD_RELOC_68K_TLS_LDM32:
1207 case BFD_RELOC_68K_TLS_LDM16:
1208 case BFD_RELOC_68K_TLS_LDM8:
1209 case BFD_RELOC_68K_TLS_LDO32:
1210 case BFD_RELOC_68K_TLS_LDO16:
1211 case BFD_RELOC_68K_TLS_LDO8:
1212 case BFD_RELOC_68K_TLS_IE32:
1213 case BFD_RELOC_68K_TLS_IE16:
1214 case BFD_RELOC_68K_TLS_IE8:
1215 case BFD_RELOC_68K_TLS_LE32:
1216 case BFD_RELOC_68K_TLS_LE16:
1217 case BFD_RELOC_68K_TLS_LE8:
1220 case BFD_RELOC_VTABLE_INHERIT:
1221 case BFD_RELOC_VTABLE_ENTRY:
1229 #else /* !OBJ_ELF */
1231 #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC
1233 /* PR gas/3041 Weak symbols are not relaxable
1234 because they must be treated as extern. */
1235 #define relaxable_symbol(symbol) (!(S_IS_WEAK (symbol)))
1237 #endif /* OBJ_ELF */
1240 tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
1243 bfd_reloc_code_real_type code;
1245 /* If the tcbit is set, then this was a fixup of a negative value
1246 that was never resolved. We do not have a reloc to handle this,
1247 so just return. We assume that other code will have detected this
1248 situation and produced a helpful error message, so we just tell the
1249 user that the reloc cannot be produced. */
1253 as_bad_where (fixp->fx_file, fixp->fx_line,
1254 _("Unable to produce reloc against symbol '%s'"),
1255 S_GET_NAME (fixp->fx_addsy));
1259 if (fixp->fx_r_type != BFD_RELOC_NONE)
1261 code = fixp->fx_r_type;
1263 /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible
1264 that fixup_segment converted a non-PC relative reloc into a
1265 PC relative reloc. In such a case, we need to convert the
1272 code = BFD_RELOC_8_PCREL;
1275 code = BFD_RELOC_16_PCREL;
1278 code = BFD_RELOC_32_PCREL;
1280 case BFD_RELOC_8_PCREL:
1281 case BFD_RELOC_16_PCREL:
1282 case BFD_RELOC_32_PCREL:
1283 case BFD_RELOC_8_GOT_PCREL:
1284 case BFD_RELOC_16_GOT_PCREL:
1285 case BFD_RELOC_32_GOT_PCREL:
1286 case BFD_RELOC_8_GOTOFF:
1287 case BFD_RELOC_16_GOTOFF:
1288 case BFD_RELOC_32_GOTOFF:
1289 case BFD_RELOC_8_PLT_PCREL:
1290 case BFD_RELOC_16_PLT_PCREL:
1291 case BFD_RELOC_32_PLT_PCREL:
1292 case BFD_RELOC_8_PLTOFF:
1293 case BFD_RELOC_16_PLTOFF:
1294 case BFD_RELOC_32_PLTOFF:
1295 case BFD_RELOC_68K_TLS_GD32:
1296 case BFD_RELOC_68K_TLS_GD16:
1297 case BFD_RELOC_68K_TLS_GD8:
1298 case BFD_RELOC_68K_TLS_LDM32:
1299 case BFD_RELOC_68K_TLS_LDM16:
1300 case BFD_RELOC_68K_TLS_LDM8:
1301 case BFD_RELOC_68K_TLS_LDO32:
1302 case BFD_RELOC_68K_TLS_LDO16:
1303 case BFD_RELOC_68K_TLS_LDO8:
1304 case BFD_RELOC_68K_TLS_IE32:
1305 case BFD_RELOC_68K_TLS_IE16:
1306 case BFD_RELOC_68K_TLS_IE8:
1307 case BFD_RELOC_68K_TLS_LE32:
1308 case BFD_RELOC_68K_TLS_LE16:
1309 case BFD_RELOC_68K_TLS_LE8:
1312 as_bad_where (fixp->fx_file, fixp->fx_line,
1313 _("Cannot make %s relocation PC relative"),
1314 bfd_get_reloc_code_name (code));
1320 #define F(SZ,PCREL) (((SZ) << 1) + (PCREL))
1321 switch (F (fixp->fx_size, fixp->fx_pcrel))
1323 #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break
1324 MAP (1, 0, BFD_RELOC_8);
1325 MAP (2, 0, BFD_RELOC_16);
1326 MAP (4, 0, BFD_RELOC_32);
1327 MAP (1, 1, BFD_RELOC_8_PCREL);
1328 MAP (2, 1, BFD_RELOC_16_PCREL);
1329 MAP (4, 1, BFD_RELOC_32_PCREL);
1337 reloc = (arelent *) xmalloc (sizeof (arelent));
1338 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
1339 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
1340 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
1342 if (OUTPUT_FLAVOR == bfd_target_aout_flavour
1344 && S_IS_WEAK (fixp->fx_addsy)
1345 && ! bfd_is_und_section (S_GET_SEGMENT (fixp->fx_addsy)))
1347 /* PR gas/3041 References to weak symbols must be treated as extern
1348 in order to be overridable by the linker, even if they are defined
1349 in the same object file. So the original addend must be written
1350 "as is" into the output section without further processing.
1351 The addend value must be hacked here in order to force
1352 bfd_install_relocation() to write the original value into the
1354 1) MD_APPLY_SYM_VALUE() is set to 1 for m68k/a.out, so the symbol
1355 value has already been added to the addend in fixup_segment(). We
1357 2) bfd_install_relocation() will incorrectly treat this symbol as
1358 resolved, so it will write the symbol value plus its addend and
1359 section VMA. As a workaround we can tweak the addend value here in
1360 order to get the original value in the section after the call to
1361 bfd_install_relocation(). */
1362 reloc->addend = fixp->fx_addnumber
1363 /* Fix because of MD_APPLY_SYM_VALUE() */
1364 - S_GET_VALUE (fixp->fx_addsy)
1365 /* Fix for bfd_install_relocation() */
1366 - (S_GET_VALUE (fixp->fx_addsy)
1367 + S_GET_SEGMENT (fixp->fx_addsy)->vma);
1369 else if (fixp->fx_pcrel)
1370 reloc->addend = fixp->fx_addnumber;
1374 if (!fixp->fx_pcrel)
1375 reloc->addend = fixp->fx_addnumber;
1377 reloc->addend = (section->vma
1378 + fixp->fx_pcrel_adjust
1379 + fixp->fx_addnumber
1380 + md_pcrel_from (fixp));
1383 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
1384 gas_assert (reloc->howto != 0);
1389 /* Handle of the OPCODE hash table. NULL means any use before
1390 m68k_ip_begin() will crash. */
1391 static struct hash_control *op_hash;
1393 /* Assemble an m68k instruction. */
1396 m68k_ip (char *instring)
1399 register struct m68k_op *opP;
1400 register const struct m68k_incant *opcode;
1401 register const char *s;
1402 register int tmpreg = 0, baseo = 0, outro = 0, nextword;
1403 char *pdot, *pdotmove;
1404 enum m68k_size siz1, siz2;
1408 struct m68k_op operands_backup[6];
1409 LITTLENUM_TYPE words[6];
1410 LITTLENUM_TYPE *wordp;
1411 unsigned long ok_arch = 0;
1413 if (*instring == ' ')
1414 instring++; /* Skip leading whitespace. */
1416 /* Scan up to end of operation-code, which MUST end in end-of-string
1417 or exactly 1 space. */
1419 for (p = instring; *p != '\0'; p++)
1429 the_ins.error = _("No operator");
1433 /* p now points to the end of the opcode name, probably whitespace.
1434 Make sure the name is null terminated by clobbering the
1435 whitespace, look it up in the hash table, then fix it back.
1436 Remove a dot, first, since the opcode tables have none. */
1439 for (pdotmove = pdot; pdotmove < p; pdotmove++)
1440 *pdotmove = pdotmove[1];
1446 opcode = (const struct m68k_incant *) hash_find (op_hash, instring);
1451 for (pdotmove = p; pdotmove > pdot; pdotmove--)
1452 *pdotmove = pdotmove[-1];
1459 the_ins.error = _("Unknown operator");
1463 /* Found a legitimate opcode, start matching operands. */
1467 if (opcode->m_operands == 0)
1469 char *old = input_line_pointer;
1471 input_line_pointer = p;
1472 /* Ahh - it's a motorola style psuedo op. */
1473 mote_pseudo_table[opcode->m_opnum].poc_handler
1474 (mote_pseudo_table[opcode->m_opnum].poc_val);
1475 input_line_pointer = old;
1481 if (flag_mri && opcode->m_opnum == 0)
1483 /* In MRI mode, random garbage is allowed after an instruction
1484 which accepts no operands. */
1485 the_ins.args = opcode->m_operands;
1486 the_ins.numargs = opcode->m_opnum;
1487 the_ins.numo = opcode->m_codenum;
1488 the_ins.opcode[0] = getone (opcode);
1489 the_ins.opcode[1] = gettwo (opcode);
1493 for (opP = &the_ins.operands[0]; *p; opP++)
1495 p = crack_operand (p, opP);
1499 the_ins.error = opP->error;
1504 opsfound = opP - &the_ins.operands[0];
1506 /* This ugly hack is to support the floating pt opcodes in their
1507 standard form. Essentially, we fake a first enty of type COP#1 */
1508 if (opcode->m_operands[0] == 'I')
1512 for (n = opsfound; n > 0; --n)
1513 the_ins.operands[n] = the_ins.operands[n - 1];
1515 memset (&the_ins.operands[0], '\0', sizeof (the_ins.operands[0]));
1516 the_ins.operands[0].mode = CONTROL;
1517 the_ins.operands[0].reg = m68k_float_copnum;
1521 /* We've got the operands. Find an opcode that'll accept them. */
1524 /* If we didn't get the right number of ops, or we have no
1525 common model with this pattern then reject this pattern. */
1527 ok_arch |= opcode->m_arch;
1528 if (opsfound != opcode->m_opnum
1529 || ((opcode->m_arch & current_architecture) == 0))
1535 /* Make a copy of the operands of this insn so that
1536 we can modify them safely, should we want to. */
1537 gas_assert (opsfound <= (int) ARRAY_SIZE (operands_backup));
1538 for (i = 0; i < opsfound; i++)
1539 operands_backup[i] = the_ins.operands[i];
1541 for (s = opcode->m_operands, opP = &operands_backup[0];
1545 /* Warning: this switch is huge! */
1546 /* I've tried to organize the cases into this order:
1547 non-alpha first, then alpha by letter. Lower-case
1548 goes directly before uppercase counterpart. */
1549 /* Code with multiple case ...: gets sorted by the lowest
1550 case ... it belongs to. I hope this makes sense. */
1656 if (opP->reg == PC || opP->reg == ZPC)
1673 if (opP->reg == PC || opP->reg == ZPC)
1692 if (opP->reg == PC || opP->reg == ZPC)
1702 if (opP->mode != IMMED)
1704 else if (s[1] == 'b'
1705 && ! isvar (&opP->disp)
1706 && (opP->disp.exp.X_op != O_constant
1707 || ! isbyte (opP->disp.exp.X_add_number)))
1709 else if (s[1] == 'B'
1710 && ! isvar (&opP->disp)
1711 && (opP->disp.exp.X_op != O_constant
1712 || ! issbyte (opP->disp.exp.X_add_number)))
1714 else if (s[1] == 'w'
1715 && ! isvar (&opP->disp)
1716 && (opP->disp.exp.X_op != O_constant
1717 || ! isword (opP->disp.exp.X_add_number)))
1719 else if (s[1] == 'W'
1720 && ! isvar (&opP->disp)
1721 && (opP->disp.exp.X_op != O_constant
1722 || ! issword (opP->disp.exp.X_add_number)))
1728 if (opP->mode != IMMED)
1733 if (opP->mode == AREG
1734 || opP->mode == CONTROL
1735 || opP->mode == FPREG
1736 || opP->mode == IMMED
1737 || opP->mode == REGLST
1738 || (opP->mode != ABSL
1740 || opP->reg == ZPC)))
1745 if (opP->mode == CONTROL
1746 || opP->mode == FPREG
1747 || opP->mode == REGLST
1748 || opP->mode == IMMED
1749 || (opP->mode != ABSL
1751 || opP->reg == ZPC)))
1779 if (opP->mode == CONTROL
1780 || opP->mode == FPREG
1781 || opP->mode == REGLST)
1786 if (opP->mode != AINC)
1791 if (opP->mode != ADEC)
1841 if (opP->reg == PC || opP->reg == ZPC)
1862 case '~': /* For now! (JF FOO is this right?) */
1884 if (opP->mode != CONTROL
1885 || (opP->reg != TT0 && opP->reg != TT1))
1890 if (opP->mode != AREG)
1895 if (opP->mode != AINDR)
1900 if (opP->mode != AINDR && opP->mode != AINC && opP->mode != ADEC
1901 && (opP->mode != DISP
1903 || opP->reg > ADDR7))
1908 if (opP->mode != ABSL
1910 && strncmp (instring, "jbsr", 4) == 0))
1933 if (opP->mode != CONTROL || opP->reg != CCR)
1938 if (opP->mode != DISP
1940 || opP->reg > ADDR7)
1945 if (opP->mode != DREG)
1950 if (opP->reg != ACC)
1955 if (opP->reg != ACC && opP->reg != ACC1
1956 && opP->reg != ACC2 && opP->reg != ACC3)
1961 if (opP->mode != FPREG)
1966 if (opP->reg != MACSR)
1971 if (opP->reg != ACCEXT01 && opP->reg != ACCEXT23)
1976 if (opP->reg != MASK)
1981 if (opP->mode != CONTROL
1988 if (opP->mode != LSH && opP->mode != RSH)
1993 if (opP->mode != CONTROL
1995 || opP->reg > last_movec_reg
2000 const enum m68k_register *rp;
2002 for (rp = control_regs; *rp; rp++)
2004 if (*rp == opP->reg)
2006 /* In most CPUs RAMBAR refers to control reg
2007 c05 (RAMBAR1), but a few CPUs have it
2008 refer to c04 (RAMBAR0). */
2009 else if (*rp == RAMBAR_ALT && opP->reg == RAMBAR)
2011 opP->reg = RAMBAR_ALT;
2021 if (opP->mode != IMMED)
2027 if (opP->mode == DREG
2028 || opP->mode == AREG
2029 || opP->mode == FPREG)
2038 opP->mask = 1 << (opP->reg - DATA0);
2041 opP->mask = 1 << (opP->reg - ADDR0 + 8);
2044 opP->mask = 1 << (opP->reg - FP0 + 16);
2052 else if (opP->mode == CONTROL)
2061 opP->mask = 1 << 24;
2064 opP->mask = 1 << 25;
2067 opP->mask = 1 << 26;
2076 else if (opP->mode != REGLST)
2078 else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0)
2080 else if (s[1] == '3' && (opP->mask & 0x7000000) != 0)
2085 if (opP->mode != IMMED)
2087 else if (opP->disp.exp.X_op != O_constant
2088 || ! issbyte (opP->disp.exp.X_add_number))
2090 else if (! m68k_quick
2091 && instring[3] != 'q'
2092 && instring[4] != 'q')
2097 if (opP->mode != DREG
2098 && opP->mode != IMMED
2099 && opP->mode != ABSL)
2104 if (opP->mode != IMMED)
2106 else if (opP->disp.exp.X_op != O_constant
2107 || TRUNC (opP->disp.exp.X_add_number) - 1 > 7)
2109 else if (! m68k_quick
2110 && (strncmp (instring, "add", 3) == 0
2111 || strncmp (instring, "sub", 3) == 0)
2112 && instring[3] != 'q')
2117 if (opP->mode != DREG && opP->mode != AREG)
2122 if (opP->mode != AINDR
2123 && (opP->mode != BASE
2125 && opP->reg != ZADDR0)
2126 || opP->disp.exp.X_op != O_absent
2127 || ((opP->index.reg < DATA0
2128 || opP->index.reg > DATA7)
2129 && (opP->index.reg < ADDR0
2130 || opP->index.reg > ADDR7))
2131 || opP->index.size != SIZE_UNSPEC
2132 || opP->index.scale != 1))
2137 if (opP->mode != CONTROL
2138 || ! (opP->reg == FPI
2140 || opP->reg == FPC))
2145 if (opP->mode != CONTROL || opP->reg != SR)
2150 if (opP->mode != IMMED)
2152 else if (opP->disp.exp.X_op != O_constant
2153 || TRUNC (opP->disp.exp.X_add_number) > 7)
2158 if (opP->mode != CONTROL || opP->reg != USP)
2163 if (opP->mode != IMMED)
2165 else if (opP->disp.exp.X_op != O_constant
2166 || (TRUNC (opP->disp.exp.X_add_number) != 0xffffffff
2167 && TRUNC (opP->disp.exp.X_add_number) - 1 > 6))
2172 if (opP->mode != IMMED)
2174 else if (opP->disp.exp.X_op != O_constant
2175 || TRUNC (opP->disp.exp.X_add_number) - 1 > 7)
2180 if (opP->mode != IMMED)
2182 else if (opP->disp.exp.X_op != O_constant
2183 || TRUNC (opP->disp.exp.X_add_number) > 511)
2187 /* JF these are out of order. We could put them
2188 in order if we were willing to put up with
2189 bunches of #ifdef m68851s in the code.
2191 Don't forget that you need these operands
2192 to use 68030 MMU instructions. */
2194 /* Memory addressing mode used by pflushr. */
2196 if (opP->mode == CONTROL
2197 || opP->mode == FPREG
2198 || opP->mode == DREG
2199 || opP->mode == AREG
2200 || opP->mode == REGLST)
2202 /* We should accept immediate operands, but they
2203 supposedly have to be quad word, and we don't
2204 handle that. I would like to see what a Motorola
2205 assembler does before doing something here. */
2206 if (opP->mode == IMMED)
2211 if (opP->mode != CONTROL
2212 || (opP->reg != SFC && opP->reg != DFC))
2217 if (opP->mode != CONTROL || opP->reg != TC)
2222 if (opP->mode != CONTROL || opP->reg != AC)
2227 if (opP->mode != CONTROL
2230 && opP->reg != SCC))
2235 if (opP->mode != CONTROL
2241 if (opP->mode != CONTROL
2244 && opP->reg != CRP))
2268 if (opP->mode != CONTROL
2269 || (!(opP->reg >= BAD && opP->reg <= BAD + 7)
2270 && !(opP->reg >= BAC && opP->reg <= BAC + 7)))
2275 if (opP->mode != CONTROL || opP->reg != PSR)
2280 if (opP->mode != CONTROL || opP->reg != PCSR)
2285 if (opP->mode != CONTROL
2294 if (opP->mode != ABSL)
2299 if (opP->reg < DATA0L || opP->reg > ADDR7U)
2301 /* FIXME: kludge instead of fixing parser:
2302 upper/lower registers are *not* CONTROL
2303 registers, but ordinary ones. */
2304 if ((opP->reg >= DATA0L && opP->reg <= DATA7L)
2305 || (opP->reg >= DATA0U && opP->reg <= DATA7U))
2312 if (!(opP->mode == AINDR
2313 || (opP->mode == DISP
2314 && !(opP->reg == PC || opP->reg == ZPC))))
2319 if (!(opP->mode == AINDR || opP->mode == DISP))
2331 /* Since we have found the correct instruction, copy
2332 in the modifications that we may have made. */
2334 for (i = 0; i < opsfound; i++)
2335 the_ins.operands[i] = operands_backup[i];
2341 opcode = opcode->m_next;
2346 && !(ok_arch & current_architecture))
2348 const struct m68k_cpu *cpu;
2351 char *buf = xmalloc (space + 1);
2355 the_ins.error = buf;
2356 /* Make sure there's a NUL at the end of the buffer -- strncpy
2357 won't write one when it runs out of buffer. */
2359 #define APPEND(STRING) \
2360 (strncpy (buf, STRING, space), len = strlen (buf), buf += len, space -= len)
2362 APPEND (_("invalid instruction for this architecture; needs "));
2366 APPEND ("ColdFire ISA_A");
2369 APPEND ("ColdFire ");
2370 APPEND (_("hardware divide"));
2373 APPEND ("ColdFire ISA_A+");
2376 APPEND ("ColdFire ISA_B");
2379 APPEND ("ColdFire ISA_C");
2382 APPEND ("ColdFire fpu");
2385 APPEND ("M68K fpu");
2388 APPEND ("M68K mmu");
2392 APPEND (_("or higher"));
2396 APPEND (_("or higher"));
2400 APPEND (_("or higher"));
2408 for (cpu = m68k_cpus; cpu->name; cpu++)
2409 if (!cpu->alias && (cpu->arch & ok_arch))
2411 const struct m68k_cpu *alias;
2412 int seen_master = 0;
2418 for (alias = cpu; alias != m68k_cpus; alias--)
2419 if (alias[-1].alias >= 0)
2421 for (; !seen_master || alias->alias > 0; alias++)
2431 APPEND (alias->name);
2444 /* We ran out of space, so replace the end of the list
2449 strcpy (buf, " ...");
2453 the_ins.error = _("operands mismatch");
2460 /* Now assemble it. */
2461 the_ins.args = opcode->m_operands;
2462 the_ins.numargs = opcode->m_opnum;
2463 the_ins.numo = opcode->m_codenum;
2464 the_ins.opcode[0] = getone (opcode);
2465 the_ins.opcode[1] = gettwo (opcode);
2467 for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++)
2472 /* This switch is a doozy.
2473 Watch the first step; its a big one! */
2506 tmpreg = 0x3c; /* 7.4 */
2507 if (strchr ("bwl", s[1]))
2508 nextword = get_num (&opP->disp, 90);
2510 nextword = get_num (&opP->disp, 0);
2511 if (isvar (&opP->disp))
2512 add_fix (s[1], &opP->disp, 0, 0);
2516 if (!isbyte (nextword))
2517 opP->error = _("operand out of range");
2522 if (!isword (nextword))
2523 opP->error = _("operand out of range");
2528 if (!issword (nextword))
2529 opP->error = _("operand out of range");
2534 addword (nextword >> 16);
2561 /* We gotta put out some float. */
2562 if (op (&opP->disp) != O_big)
2567 /* Can other cases happen here? */
2568 if (op (&opP->disp) != O_constant)
2571 val = (valueT) offs (&opP->disp);
2575 generic_bignum[gencnt] = (LITTLENUM_TYPE) val;
2576 val >>= LITTLENUM_NUMBER_OF_BITS;
2580 offs (&opP->disp) = gencnt;
2582 if (offs (&opP->disp) > 0)
2584 if (offs (&opP->disp) > baseo)
2586 as_warn (_("Bignum too big for %c format; truncated"),
2588 offs (&opP->disp) = baseo;
2590 baseo -= offs (&opP->disp);
2593 for (wordp = generic_bignum + offs (&opP->disp) - 1;
2594 offs (&opP->disp)--;
2599 gen_to_words (words, baseo, (long) outro);
2600 for (wordp = words; baseo--; wordp++)
2604 tmpreg = opP->reg - DATA; /* 0.dreg */
2607 tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */
2610 tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */
2613 tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */
2616 tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */
2620 nextword = get_num (&opP->disp, 90);
2622 /* Convert mode 5 addressing with a zero offset into
2623 mode 2 addressing to reduce the instruction size by a
2625 if (! isvar (&opP->disp)
2627 && (opP->disp.size == SIZE_UNSPEC)
2628 && (opP->reg >= ADDR0)
2629 && (opP->reg <= ADDR7))
2631 tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */
2636 && ! isvar (&opP->disp)
2639 opP->disp.exp.X_op = O_symbol;
2640 opP->disp.exp.X_add_symbol =
2641 section_symbol (absolute_section);
2644 /* Force into index mode. Hope this works. */
2646 /* We do the first bit for 32-bit displacements, and the
2647 second bit for 16 bit ones. It is possible that we
2648 should make the default be WORD instead of LONG, but
2649 I think that'd break GCC, so we put up with a little
2650 inefficiency for the sake of working output. */
2652 if (!issword (nextword)
2653 || (isvar (&opP->disp)
2654 && ((opP->disp.size == SIZE_UNSPEC
2655 && flag_short_refs == 0
2656 && cpu_of_arch (current_architecture) >= m68020
2657 && ! arch_coldfire_p (current_architecture))
2658 || opP->disp.size == SIZE_LONG)))
2660 if (cpu_of_arch (current_architecture) < m68020
2661 || arch_coldfire_p (current_architecture))
2663 _("displacement too large for this architecture; needs 68020 or higher");
2665 tmpreg = 0x3B; /* 7.3 */
2667 tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */
2668 if (isvar (&opP->disp))
2672 if (opP->disp.size == SIZE_LONG
2674 /* If the displacement needs pic
2675 relocation it cannot be relaxed. */
2676 || opP->disp.pic_reloc != pic_none
2681 add_fix ('l', &opP->disp, 1, 2);
2685 add_frag (adds (&opP->disp),
2686 SEXT (offs (&opP->disp)),
2687 TAB (PCREL1632, SZ_UNDEF));
2694 add_fix ('l', &opP->disp, 0, 0);
2699 addword (nextword >> 16);
2704 tmpreg = 0x3A; /* 7.2 */
2706 tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */
2708 if (isvar (&opP->disp))
2712 add_fix ('w', &opP->disp, 1, 0);
2715 add_fix ('w', &opP->disp, 0, 0);
2725 baseo = get_num (&opP->disp, 90);
2726 if (opP->mode == POST || opP->mode == PRE)
2727 outro = get_num (&opP->odisp, 90);
2728 /* Figure out the `addressing mode'.
2729 Also turn on the BASE_DISABLE bit, if needed. */
2730 if (opP->reg == PC || opP->reg == ZPC)
2732 tmpreg = 0x3b; /* 7.3 */
2733 if (opP->reg == ZPC)
2736 else if (opP->reg == 0)
2739 tmpreg = 0x30; /* 6.garbage */
2741 else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7)
2744 tmpreg = 0x30 + opP->reg - ZADDR0;
2747 tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */
2749 siz1 = opP->disp.size;
2750 if (opP->mode == POST || opP->mode == PRE)
2751 siz2 = opP->odisp.size;
2755 /* Index register stuff. */
2756 if (opP->index.reg != 0
2757 && opP->index.reg >= DATA
2758 && opP->index.reg <= ADDR7)
2760 nextword |= (opP->index.reg - DATA) << 12;
2762 if (opP->index.size == SIZE_LONG
2763 || (opP->index.size == SIZE_UNSPEC
2764 && m68k_index_width_default == SIZE_LONG))
2767 if ((opP->index.scale != 1
2768 && cpu_of_arch (current_architecture) < m68020)
2769 || (opP->index.scale == 8
2770 && (arch_coldfire_p (current_architecture)
2771 && !arch_coldfire_fpu (current_architecture))))
2774 _("scale factor invalid on this architecture; needs cpu32 or 68020 or higher");
2777 if (arch_coldfire_p (current_architecture)
2778 && opP->index.size == SIZE_WORD)
2779 opP->error = _("invalid index size for coldfire");
2781 switch (opP->index.scale)
2798 GET US OUT OF HERE! */
2800 /* Must be INDEX, with an index register. Address
2801 register cannot be ZERO-PC, and either :b was
2802 forced, or we know it will fit. For a 68000 or
2803 68010, force this mode anyways, because the
2804 larger modes aren't supported. */
2805 if (opP->mode == BASE
2806 && ((opP->reg >= ADDR0
2807 && opP->reg <= ADDR7)
2810 if (siz1 == SIZE_BYTE
2811 || cpu_of_arch (current_architecture) < m68020
2812 || arch_coldfire_p (current_architecture)
2813 || (siz1 == SIZE_UNSPEC
2814 && ! isvar (&opP->disp)
2815 && issbyte (baseo)))
2817 nextword += baseo & 0xff;
2819 if (isvar (&opP->disp))
2821 /* Do a byte relocation. If it doesn't
2822 fit (possible on m68000) let the
2823 fixup processing complain later. */
2825 add_fix ('B', &opP->disp, 1, 1);
2827 add_fix ('B', &opP->disp, 0, 0);
2829 else if (siz1 != SIZE_BYTE)
2831 if (siz1 != SIZE_UNSPEC)
2832 as_warn (_("Forcing byte displacement"));
2833 if (! issbyte (baseo))
2834 opP->error = _("byte displacement out of range");
2839 else if (siz1 == SIZE_UNSPEC
2841 && isvar (&opP->disp)
2842 && subs (&opP->disp) == NULL
2844 /* If the displacement needs pic
2845 relocation it cannot be relaxed. */
2846 && opP->disp.pic_reloc == pic_none
2850 /* The code in md_convert_frag_1 needs to be
2851 able to adjust nextword. Call frag_grow
2852 to ensure that we have enough space in
2853 the frag obstack to make all the bytes
2856 nextword += baseo & 0xff;
2858 add_frag (adds (&opP->disp),
2859 SEXT (offs (&opP->disp)),
2860 TAB (PCINDEX, SZ_UNDEF));
2868 nextword |= 0x40; /* No index reg. */
2869 if (opP->index.reg >= ZDATA0
2870 && opP->index.reg <= ZDATA7)
2871 nextword |= (opP->index.reg - ZDATA0) << 12;
2872 else if (opP->index.reg >= ZADDR0
2873 || opP->index.reg <= ZADDR7)
2874 nextword |= (opP->index.reg - ZADDR0 + 8) << 12;
2877 /* It isn't simple. */
2879 if (cpu_of_arch (current_architecture) < m68020
2880 || arch_coldfire_p (current_architecture))
2882 _("invalid operand mode for this architecture; needs 68020 or higher");
2885 /* If the guy specified a width, we assume that it is
2886 wide enough. Maybe it isn't. If so, we lose. */
2890 if (isvar (&opP->disp)
2892 : ! issword (baseo))
2897 else if (! isvar (&opP->disp) && baseo == 0)
2906 as_warn (_(":b not permitted; defaulting to :w"));
2916 /* Figure out inner displacement stuff. */
2917 if (opP->mode == POST || opP->mode == PRE)
2919 if (cpu_of_arch (current_architecture) & cpu32)
2920 opP->error = _("invalid operand mode for this architecture; needs 68020 or higher");
2924 if (isvar (&opP->odisp)
2926 : ! issword (outro))
2931 else if (! isvar (&opP->odisp) && outro == 0)
2940 as_warn (_(":b not permitted; defaulting to :w"));
2949 if (opP->mode == POST
2950 && (nextword & 0x40) == 0)
2955 if (siz1 != SIZE_UNSPEC && isvar (&opP->disp))
2957 if (opP->reg == PC || opP->reg == ZPC)
2958 add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2);
2960 add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0);
2962 if (siz1 == SIZE_LONG)
2963 addword (baseo >> 16);
2964 if (siz1 != SIZE_UNSPEC)
2967 if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp))
2968 add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0);
2969 if (siz2 == SIZE_LONG)
2970 addword (outro >> 16);
2971 if (siz2 != SIZE_UNSPEC)
2977 nextword = get_num (&opP->disp, 90);
2978 switch (opP->disp.size)
2983 if (!isvar (&opP->disp) && issword (offs (&opP->disp)))
2985 tmpreg = 0x38; /* 7.0 */
2989 if (isvar (&opP->disp)
2990 && !subs (&opP->disp)
2991 && adds (&opP->disp)
2993 /* If the displacement needs pic relocation it
2994 cannot be relaxed. */
2995 && opP->disp.pic_reloc == pic_none
2998 && !strchr ("~%&$?", s[0]))
3000 tmpreg = 0x3A; /* 7.2 */
3001 add_frag (adds (&opP->disp),
3002 SEXT (offs (&opP->disp)),
3003 TAB (ABSTOPCREL, SZ_UNDEF));
3006 /* Fall through into long. */
3008 if (isvar (&opP->disp))
3009 add_fix ('l', &opP->disp, 0, 0);
3011 tmpreg = 0x39;/* 7.1 mode */
3012 addword (nextword >> 16);
3017 as_bad (_("unsupported byte value; use a different suffix"));
3021 if (isvar (&opP->disp))
3022 add_fix ('w', &opP->disp, 0, 0);
3024 tmpreg = 0x38;/* 7.0 mode */
3032 as_bad (_("unknown/incorrect operand"));
3036 /* If s[0] is '4', then this is for the mac instructions
3037 that can have a trailing_ampersand set. If so, set 0x100
3038 bit on tmpreg so install_gen_operand can check for it and
3039 set the appropriate bit (word2, bit 5). */
3042 if (opP->trailing_ampersand)
3045 install_gen_operand (s[1], tmpreg);
3051 { /* JF: I hate floating point! */
3066 tmpreg = get_num (&opP->disp, tmpreg);
3067 if (isvar (&opP->disp))
3068 add_fix (s[1], &opP->disp, 0, 0);
3071 case 'b': /* Danger: These do no check for
3072 certain types of overflow.
3074 if (!isbyte (tmpreg))
3075 opP->error = _("out of range");
3076 insop (tmpreg, opcode);
3077 if (isvar (&opP->disp))
3078 the_ins.reloc[the_ins.nrel - 1].n =
3079 (opcode->m_codenum) * 2 + 1;
3082 if (!issbyte (tmpreg))
3083 opP->error = _("out of range");
3084 the_ins.opcode[the_ins.numo - 1] |= tmpreg & 0xff;
3085 if (isvar (&opP->disp))
3086 the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1;
3089 if (!isword (tmpreg))
3090 opP->error = _("out of range");
3091 insop (tmpreg, opcode);
3092 if (isvar (&opP->disp))
3093 the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2;
3096 if (!issword (tmpreg))
3097 opP->error = _("out of range");
3098 insop (tmpreg, opcode);
3099 if (isvar (&opP->disp))
3100 the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2;
3103 /* Because of the way insop works, we put these two out
3105 insop (tmpreg, opcode);
3106 insop (tmpreg >> 16, opcode);
3107 if (isvar (&opP->disp))
3108 the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2;
3115 install_operand (s[1], tmpreg);
3126 install_operand (s[1], opP->reg - ADDR);
3130 tmpreg = get_num (&opP->disp, 90);
3135 add_fix ('B', &opP->disp, 1, -1);
3138 add_fix ('w', &opP->disp, 1, 0);
3143 the_ins.opcode[0] |= 0xff;
3144 add_fix ('l', &opP->disp, 1, 0);
3148 case 'g': /* Conditional branch */
3149 have_disp = HAVE_LONG_CALL (current_architecture);
3152 case 'b': /* Unconditional branch */
3153 have_disp = HAVE_LONG_BRANCH (current_architecture);
3154 use_pl = LONG_BRANCH_VIA_COND (current_architecture);
3157 case 's': /* Unconditional subroutine */
3158 have_disp = HAVE_LONG_CALL (current_architecture);
3161 if (subs (&opP->disp) /* We can't relax it. */
3163 /* If the displacement needs pic relocation it cannot be
3165 || opP->disp.pic_reloc != pic_none
3170 as_warn (_("Can't use long branches on this architecture"));
3174 /* This could either be a symbol, or an absolute
3175 address. If it's an absolute address, turn it into
3176 an absolute jump right here and keep it out of the
3178 if (adds (&opP->disp) == 0)
3180 if (the_ins.opcode[0] == 0x6000) /* jbra */
3181 the_ins.opcode[0] = 0x4EF9;
3182 else if (the_ins.opcode[0] == 0x6100) /* jbsr */
3183 the_ins.opcode[0] = 0x4EB9;
3186 the_ins.opcode[0] ^= 0x0100;
3187 the_ins.opcode[0] |= 0x0006;
3190 add_fix ('l', &opP->disp, 0, 0);
3196 /* Now we know it's going into the relaxer. Now figure
3197 out which mode. We try in this order of preference:
3198 long branch, absolute jump, byte/word branches only. */
3200 add_frag (adds (&opP->disp),
3201 SEXT (offs (&opP->disp)),
3202 TAB (BRANCHBWL, SZ_UNDEF));
3203 else if (! flag_keep_pcrel)
3205 if ((the_ins.opcode[0] == 0x6000)
3206 || (the_ins.opcode[0] == 0x6100))
3207 add_frag (adds (&opP->disp),
3208 SEXT (offs (&opP->disp)),
3209 TAB (BRABSJUNC, SZ_UNDEF));
3211 add_frag (adds (&opP->disp),
3212 SEXT (offs (&opP->disp)),
3213 TAB (BRABSJCOND, SZ_UNDEF));
3216 add_frag (adds (&opP->disp),
3217 SEXT (offs (&opP->disp)),
3218 (use_pl ? TAB (BRANCHBWPL, SZ_UNDEF)
3219 : TAB (BRANCHBW, SZ_UNDEF)));
3222 if (isvar (&opP->disp))
3224 /* Check for DBcc instructions. We can relax them,
3225 but only if we have long branches and/or absolute
3227 if (((the_ins.opcode[0] & 0xf0f8) == 0x50c8)
3228 && (HAVE_LONG_BRANCH (current_architecture)
3229 || ! flag_keep_pcrel))
3231 if (HAVE_LONG_BRANCH (current_architecture))
3232 add_frag (adds (&opP->disp),
3233 SEXT (offs (&opP->disp)),
3234 TAB (DBCCLBR, SZ_UNDEF));
3236 add_frag (adds (&opP->disp),
3237 SEXT (offs (&opP->disp)),
3238 TAB (DBCCABSJ, SZ_UNDEF));
3241 add_fix ('w', &opP->disp, 1, 0);
3245 case 'C': /* Fixed size LONG coproc branches. */
3246 add_fix ('l', &opP->disp, 1, 0);
3250 case 'c': /* Var size Coprocesssor branches. */
3251 if (subs (&opP->disp) || (adds (&opP->disp) == 0))
3253 the_ins.opcode[the_ins.numo - 1] |= 0x40;
3254 add_fix ('l', &opP->disp, 1, 0);
3259 add_frag (adds (&opP->disp),
3260 SEXT (offs (&opP->disp)),
3261 TAB (FBRANCH, SZ_UNDEF));
3268 case 'C': /* Ignore it. */
3271 case 'd': /* JF this is a kludge. */
3272 install_operand ('s', opP->reg - ADDR);
3273 tmpreg = get_num (&opP->disp, 90);
3274 if (!issword (tmpreg))
3276 as_warn (_("Expression out of range, using 0"));
3283 install_operand (s[1], opP->reg - DATA);
3286 case 'e': /* EMAC ACCx, reg/reg. */
3287 install_operand (s[1], opP->reg - ACC);
3290 case 'E': /* Ignore it. */
3294 install_operand (s[1], opP->reg - FP0);
3297 case 'g': /* EMAC ACCEXTx. */
3298 install_operand (s[1], opP->reg - ACCEXT01);
3301 case 'G': /* Ignore it. */
3306 tmpreg = opP->reg - COP0;
3307 install_operand (s[1], tmpreg);
3310 case 'i': /* MAC/EMAC scale factor. */
3311 install_operand (s[1], opP->mode == LSH ? 0x1 : 0x3);
3314 case 'J': /* JF foo. */
3357 tmpreg = 0x00c + (opP->reg - ACR4);
3464 install_operand (s[1], tmpreg);
3468 tmpreg = get_num (&opP->disp, 55);
3469 install_operand (s[1], tmpreg & 0x7f);
3476 if (tmpreg & 0x7FF0000)
3477 as_bad (_("Floating point register in register list"));
3478 insop (reverse_16_bits (tmpreg), opcode);
3482 if (tmpreg & 0x700FFFF)
3483 as_bad (_("Wrong register in floating-point reglist"));
3484 install_operand (s[1], reverse_8_bits (tmpreg >> 16));
3492 if (tmpreg & 0x7FF0000)
3493 as_bad (_("Floating point register in register list"));
3494 insop (tmpreg, opcode);
3496 else if (s[1] == '8')
3498 if (tmpreg & 0x0FFFFFF)
3499 as_bad (_("incorrect register in reglist"));
3500 install_operand (s[1], tmpreg >> 24);
3504 if (tmpreg & 0x700FFFF)
3505 as_bad (_("wrong register in floating-point reglist"));
3507 install_operand (s[1], tmpreg >> 16);
3512 install_operand (s[1], get_num (&opP->disp, 60));
3516 tmpreg = ((opP->mode == DREG)
3517 ? 0x20 + (int) (opP->reg - DATA)
3518 : (get_num (&opP->disp, 40) & 0x1F));
3519 install_operand (s[1], tmpreg);
3523 tmpreg = get_num (&opP->disp, 10);
3526 install_operand (s[1], tmpreg);
3530 /* This depends on the fact that ADDR registers are eight
3531 more than their corresponding DATA regs, so the result
3532 will have the ADDR_REG bit set. */
3533 install_operand (s[1], opP->reg - DATA);
3537 if (opP->mode == AINDR)
3538 install_operand (s[1], opP->reg - DATA);
3540 install_operand (s[1], opP->index.reg - DATA);
3544 if (opP->reg == FPI)
3546 else if (opP->reg == FPS)
3548 else if (opP->reg == FPC)
3552 install_operand (s[1], tmpreg);
3555 case 'S': /* Ignore it. */
3559 install_operand (s[1], get_num (&opP->disp, 30));
3562 case 'U': /* Ignore it. */
3581 as_fatal (_("failed sanity check"));
3582 } /* switch on cache token. */
3583 install_operand (s[1], tmpreg);
3586 /* JF: These are out of order, I fear. */
3599 install_operand (s[1], tmpreg);
3625 install_operand (s[1], tmpreg);
3629 if (opP->reg == VAL)
3648 install_operand (s[1], tmpreg);
3662 tmpreg = (4 << 10) | ((opP->reg - BAD) << 2);
3673 tmpreg = (5 << 10) | ((opP->reg - BAC) << 2);
3679 install_operand (s[1], tmpreg);
3682 know (opP->reg == PSR);
3685 know (opP->reg == PCSR);
3700 install_operand (s[1], tmpreg);
3703 tmpreg = get_num (&opP->disp, 20);
3704 install_operand (s[1], tmpreg);
3706 case '_': /* used only for move16 absolute 32-bit address. */
3707 if (isvar (&opP->disp))
3708 add_fix ('l', &opP->disp, 0, 0);
3709 tmpreg = get_num (&opP->disp, 90);
3710 addword (tmpreg >> 16);
3711 addword (tmpreg & 0xFFFF);
3714 install_operand (s[1], opP->reg - DATA0L);
3715 opP->reg -= (DATA0L);
3716 opP->reg &= 0x0F; /* remove upper/lower bit. */
3719 tmpreg = get_num (&opP->disp, 80);
3722 install_operand (s[1], tmpreg);
3725 tmpreg = get_num (&opP->disp, 10);
3726 install_operand (s[1], tmpreg - 1);
3729 tmpreg = get_num (&opP->disp, 65);
3730 install_operand (s[1], tmpreg);
3737 /* By the time whe get here (FINALLY) the_ins contains the complete
3738 instruction, ready to be emitted. . . */
3742 reverse_16_bits (int in)
3747 static int mask[16] =
3749 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
3750 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000
3752 for (n = 0; n < 16; n++)
3755 out |= mask[15 - n];
3758 } /* reverse_16_bits() */
3761 reverse_8_bits (int in)
3766 static int mask[8] =
3768 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
3771 for (n = 0; n < 8; n++)
3777 } /* reverse_8_bits() */
3779 /* Cause an extra frag to be generated here, inserting up to
3780 FRAG_VAR_SIZE bytes. TYPE is the subtype of the frag to be
3781 generated; its primary type is rs_machine_dependent.
3783 The TYPE parameter is also used by md_convert_frag_1 and
3784 md_estimate_size_before_relax. The appropriate type of fixup will
3785 be emitted by md_convert_frag_1.
3787 ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */
3789 install_operand (int mode, int val)
3794 the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge. */
3797 the_ins.opcode[0] |= val << 9;
3800 the_ins.opcode[1] |= val << 9;
3803 the_ins.opcode[1] |= val << 12;
3806 the_ins.opcode[1] |= val << 6;
3809 the_ins.opcode[1] |= val;
3812 the_ins.opcode[2] |= val << 12;
3815 the_ins.opcode[2] |= val << 6;
3818 /* DANGER! This is a hack to force cas2l and cas2w cmds to be
3819 three words long! */
3821 the_ins.opcode[2] |= val;
3824 the_ins.opcode[1] |= val << 7;
3827 the_ins.opcode[1] |= val << 10;
3831 the_ins.opcode[1] |= val << 5;
3836 the_ins.opcode[1] |= (val << 10) | (val << 7);
3839 the_ins.opcode[1] |= (val << 12) | val;
3842 the_ins.opcode[0] |= val = 0xff;
3845 the_ins.opcode[0] |= val << 9;
3848 the_ins.opcode[1] |= val;
3851 the_ins.opcode[1] |= val;
3852 the_ins.numo++; /* What a hack. */
3855 the_ins.opcode[1] |= val << 4;
3863 the_ins.opcode[0] |= (val << 6);
3866 the_ins.opcode[1] = (val >> 16);
3867 the_ins.opcode[2] = val & 0xffff;
3870 the_ins.opcode[0] |= ((val & 0x8) << (6 - 3));
3871 the_ins.opcode[0] |= ((val & 0x7) << 9);
3872 the_ins.opcode[1] |= ((val & 0x10) << (7 - 4));
3874 case 'n': /* MAC/EMAC Rx on !load. */
3875 the_ins.opcode[0] |= ((val & 0x8) << (6 - 3));
3876 the_ins.opcode[0] |= ((val & 0x7) << 9);
3877 the_ins.opcode[1] |= ((val & 0x10) << (7 - 4));
3879 case 'o': /* MAC/EMAC Rx on load. */
3880 the_ins.opcode[1] |= val << 12;
3881 the_ins.opcode[1] |= ((val & 0x10) << (7 - 4));
3883 case 'M': /* MAC/EMAC Ry on !load. */
3884 the_ins.opcode[0] |= (val & 0xF);
3885 the_ins.opcode[1] |= ((val & 0x10) << (6 - 4));
3887 case 'N': /* MAC/EMAC Ry on load. */
3888 the_ins.opcode[1] |= (val & 0xF);
3889 the_ins.opcode[1] |= ((val & 0x10) << (6 - 4));
3892 the_ins.opcode[1] |= ((val != 1) << 10);
3895 the_ins.opcode[0] |= ((val & 0x3) << 9);
3898 the_ins.opcode[0] |= ((val & 0x3) << 0);
3900 case 'G': /* EMAC accumulator in a EMAC load instruction. */
3901 the_ins.opcode[0] |= ((~val & 0x1) << 7);
3902 the_ins.opcode[1] |= ((val & 0x2) << (4 - 1));
3904 case 'H': /* EMAC accumulator in a EMAC non-load instruction. */
3905 the_ins.opcode[0] |= ((val & 0x1) << 7);
3906 the_ins.opcode[1] |= ((val & 0x2) << (4 - 1));
3909 the_ins.opcode[1] |= ((val & 0x3) << 9);
3912 the_ins.opcode[0] |= (val & 0x1) <<10;
3916 as_fatal (_("failed sanity check."));
3921 install_gen_operand (int mode, int val)
3925 case '/': /* Special for mask loads for mac/msac insns with
3926 possible mask; trailing_ampersend set in bit 8. */
3927 the_ins.opcode[0] |= (val & 0x3f);
3928 the_ins.opcode[1] |= (((val & 0x100) >> 8) << 5);
3931 the_ins.opcode[0] |= val;
3934 /* This is a kludge!!! */
3935 the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3;
3944 the_ins.opcode[0] |= val;
3946 /* more stuff goes here. */
3948 as_fatal (_("failed sanity check."));
3952 /* Verify that we have some number of paren pairs, do m68k_ip_op(), and
3953 then deal with the bitfield hack. */
3956 crack_operand (char *str, struct m68k_op *opP)
3958 register int parens;
3960 register char *beg_str;
3968 for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++)
3974 else if (*str == ')')
3978 opP->error = _("Extra )");
3984 if (flag_mri && *str == '\'')
3985 inquote = ! inquote;
3987 if (!*str && parens)
3989 opP->error = _("Missing )");
3994 if (m68k_ip_op (beg_str, opP) != 0)
4001 c = *++str; /* JF bitfield hack. */
4006 as_bad (_("Missing operand"));
4009 /* Detect MRI REG symbols and convert them to REGLSTs. */
4010 if (opP->mode == CONTROL && (int)opP->reg < 0)
4013 opP->mask = ~(int)opP->reg;
4020 /* This is the guts of the machine-dependent assembler. STR points to a
4021 machine dependent instruction. This function is supposed to emit
4022 the frags/bytes it assembles to.
4026 insert_reg (const char *regname, int regnum)
4031 #ifdef REGISTER_PREFIX
4032 if (!flag_reg_prefix_optional)
4034 buf[0] = REGISTER_PREFIX;
4035 strcpy (buf + 1, regname);
4040 symbol_table_insert (symbol_new (regname, reg_section, regnum,
4041 &zero_address_frag));
4043 for (i = 0; regname[i]; i++)
4044 buf[i] = TOUPPER (regname[i]);
4047 symbol_table_insert (symbol_new (buf, reg_section, regnum,
4048 &zero_address_frag));
4057 static const struct init_entry init_table[] =
4117 { "accext01", ACCEXT01 },
4118 { "accext23", ACCEXT23 },
4122 /* Control registers. */
4123 { "sfc", SFC }, /* Source Function Code. */
4125 { "dfc", DFC }, /* Destination Function Code. */
4127 { "cacr", CACR }, /* Cache Control Register. */
4128 { "caar", CAAR }, /* Cache Address Register. */
4129 { "cpucr", CPUCR }, /* CPU Control Register. */
4131 { "usp", USP }, /* User Stack Pointer. */
4132 { "vbr", VBR }, /* Vector Base Register. */
4133 { "msp", MSP }, /* Master Stack Pointer. */
4134 { "isp", ISP }, /* Interrupt Stack Pointer. */
4136 { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0. */
4137 { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1. */
4138 { "dtt0", DTT0 }, /* Data Transparent Translation Register 0. */
4139 { "dtt1", DTT1 }, /* Data Transparent Translation Register 1. */
4141 /* 68ec040 versions of same */
4142 { "iacr0", ITT0 }, /* Instruction Access Control Register 0. */
4143 { "iacr1", ITT1 }, /* Instruction Access Control Register 0. */
4144 { "dacr0", DTT0 }, /* Data Access Control Register 0. */
4145 { "dacr1", DTT1 }, /* Data Access Control Register 0. */
4147 /* Coldfire versions of same. The ColdFire programmer's reference
4148 manual indicated that the order is 2,3,0,1, but Ken Rose
4149 <rose@netcom.com> says that 0,1,2,3 is the correct order. */
4150 { "acr0", ACR0 }, /* Access Control Unit 0. */
4151 { "acr1", ACR1 }, /* Access Control Unit 1. */
4152 { "acr2", ACR2 }, /* Access Control Unit 2. */
4153 { "acr3", ACR3 }, /* Access Control Unit 3. */
4154 { "acr4", ACR4 }, /* Access Control Unit 4. */
4155 { "acr5", ACR5 }, /* Access Control Unit 5. */
4156 { "acr6", ACR6 }, /* Access Control Unit 6. */
4157 { "acr7", ACR7 }, /* Access Control Unit 7. */
4159 { "tc", TC }, /* MMU Translation Control Register. */
4163 { "mmusr", MMUSR }, /* MMU Status Register. */
4164 { "srp", SRP }, /* User Root Pointer. */
4165 { "urp", URP }, /* Supervisor Root Pointer. */
4168 { "mmubar", MMUBAR },
4171 { "rombar", ROMBAR }, /* ROM Base Address Register. */
4172 { "rambar0", RAMBAR0 }, /* ROM Base Address Register. */
4173 { "rambar1", RAMBAR1 }, /* ROM Base Address Register. */
4174 { "mbar", MBAR }, /* Module Base Address Register. */
4176 { "mbar0", MBAR0 }, /* mcfv4e registers. */
4177 { "mbar1", MBAR1 }, /* mcfv4e registers. */
4178 { "rombar0", ROMBAR0 }, /* mcfv4e registers. */
4179 { "rombar1", ROMBAR1 }, /* mcfv4e registers. */
4180 { "mpcr", MPCR }, /* mcfv4e registers. */
4181 { "edrambar", EDRAMBAR }, /* mcfv4e registers. */
4182 { "secmbar", SECMBAR }, /* mcfv4e registers. */
4183 { "asid", TC }, /* mcfv4e registers. */
4184 { "mmubar", BUSCR }, /* mcfv4e registers. */
4185 { "pcr1u0", PCR1U0 }, /* mcfv4e registers. */
4186 { "pcr1l0", PCR1L0 }, /* mcfv4e registers. */
4187 { "pcr2u0", PCR2U0 }, /* mcfv4e registers. */
4188 { "pcr2l0", PCR2L0 }, /* mcfv4e registers. */
4189 { "pcr3u0", PCR3U0 }, /* mcfv4e registers. */
4190 { "pcr3l0", PCR3L0 }, /* mcfv4e registers. */
4191 { "pcr1u1", PCR1U1 }, /* mcfv4e registers. */
4192 { "pcr1l1", PCR1L1 }, /* mcfv4e registers. */
4193 { "pcr2u1", PCR2U1 }, /* mcfv4e registers. */
4194 { "pcr2l1", PCR2L1 }, /* mcfv4e registers. */
4195 { "pcr3u1", PCR3U1 }, /* mcfv4e registers. */
4196 { "pcr3l1", PCR3L1 }, /* mcfv4e registers. */
4198 { "flashbar", FLASHBAR }, /* mcf528x registers. */
4199 { "rambar", RAMBAR }, /* mcf528x registers. */
4201 { "mbar2", MBAR2 }, /* mcf5249 registers. */
4203 { "rgpiobar", RGPIOBAR }, /* mcf54418 registers. */
4205 { "cac", CAC }, /* fido registers. */
4206 { "mbb", MBO }, /* fido registers (obsolete). */
4207 { "mbo", MBO }, /* fido registers. */
4208 /* End of control registers. */
4242 /* 68ec030 versions of same. */
4245 /* 68ec030 access control unit, identical to 030 MMU status reg. */
4248 /* Suppressed data and address registers. */
4266 /* Upper and lower data and address registers, used by macw and msacw. */
4307 init_regtable (void)
4310 for (i = 0; init_table[i].name; i++)
4311 insert_reg (init_table[i].name, init_table[i].number);
4315 md_assemble (char *str)
4322 int shorts_this_frag;
4325 if (!selected_cpu && !selected_arch)
4327 /* We've not selected an architecture yet. Set the default
4328 now. We do this lazily so that an initial .cpu or .arch directive
4330 if (!m68k_set_cpu (TARGET_CPU, 1, 1))
4331 as_bad (_("unrecognized default cpu `%s'"), TARGET_CPU);
4336 /* In MRI mode, the instruction and operands are separated by a
4337 space. Anything following the operands is a comment. The label
4338 has already been removed. */
4346 for (s = str; *s != '\0'; s++)
4348 if ((*s == ' ' || *s == '\t') && ! inquote)
4366 inquote = ! inquote;
4371 memset (&the_ins, '\0', sizeof (the_ins));
4376 for (n = 0; n < the_ins.numargs; n++)
4377 if (the_ins.operands[n].error)
4379 er = the_ins.operands[n].error;
4385 as_bad (_("%s -- statement `%s' ignored"), er, str);
4389 /* If there is a current label, record that it marks an instruction. */
4390 if (current_label != NULL)
4392 current_label->text = 1;
4393 current_label = NULL;
4397 /* Tie dwarf2 debug info to the address at the start of the insn. */
4398 dwarf2_emit_insn (0);
4401 if (the_ins.nfrag == 0)
4403 /* No frag hacking involved; just put it out. */
4404 toP = frag_more (2 * the_ins.numo);
4405 fromP = &the_ins.opcode[0];
4406 for (m = the_ins.numo; m; --m)
4408 md_number_to_chars (toP, (long) (*fromP), 2);
4412 /* Put out symbol-dependent info. */
4413 for (m = 0; m < the_ins.nrel; m++)
4415 switch (the_ins.reloc[m].wid)
4434 as_fatal (_("Don't know how to figure width of %c in md_assemble()"),
4435 the_ins.reloc[m].wid);
4438 fixP = fix_new_exp (frag_now,
4439 ((toP - frag_now->fr_literal)
4440 - the_ins.numo * 2 + the_ins.reloc[m].n),
4442 &the_ins.reloc[m].exp,
4443 the_ins.reloc[m].pcrel,
4444 get_reloc_code (n, the_ins.reloc[m].pcrel,
4445 the_ins.reloc[m].pic_reloc));
4446 fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix;
4447 if (the_ins.reloc[m].wid == 'B')
4448 fixP->fx_signed = 1;
4453 /* There's some frag hacking. */
4455 /* Calculate the max frag size. */
4458 wid = 2 * the_ins.fragb[0].fragoff;
4459 for (n = 1; n < the_ins.nfrag; n++)
4460 wid += 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff);
4461 /* frag_var part. */
4462 wid += FRAG_VAR_SIZE;
4463 /* Make sure the whole insn fits in one chunk, in particular that
4464 the var part is attached, as we access one byte before the
4465 variable frag for byte branches. */
4469 for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++)
4474 wid = 2 * the_ins.fragb[n].fragoff;
4476 wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff);
4477 toP = frag_more (wid);
4479 shorts_this_frag = 0;
4480 for (m = wid / 2; m; --m)
4482 md_number_to_chars (toP, (long) (*fromP), 2);
4487 for (m = 0; m < the_ins.nrel; m++)
4489 if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag)
4491 the_ins.reloc[m].n -= 2 * shorts_this_frag;
4494 wid = the_ins.reloc[m].wid;
4497 the_ins.reloc[m].wid = 0;
4498 wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000;
4500 fixP = fix_new_exp (frag_now,
4501 ((toP - frag_now->fr_literal)
4502 - the_ins.numo * 2 + the_ins.reloc[m].n),
4504 &the_ins.reloc[m].exp,
4505 the_ins.reloc[m].pcrel,
4506 get_reloc_code (wid, the_ins.reloc[m].pcrel,
4507 the_ins.reloc[m].pic_reloc));
4508 fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix;
4510 (void) frag_var (rs_machine_dependent, FRAG_VAR_SIZE, 0,
4511 (relax_substateT) (the_ins.fragb[n].fragty),
4512 the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P);
4514 gas_assert (the_ins.nfrag >= 1);
4515 n = the_ins.numo - the_ins.fragb[the_ins.nfrag - 1].fragoff;
4516 shorts_this_frag = 0;
4519 toP = frag_more (n * 2);
4522 md_number_to_chars (toP, (long) (*fromP), 2);
4528 for (m = 0; m < the_ins.nrel; m++)
4532 wid = the_ins.reloc[m].wid;
4535 the_ins.reloc[m].wid = 0;
4536 wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000;
4538 fixP = fix_new_exp (frag_now,
4539 ((the_ins.reloc[m].n + toP - frag_now->fr_literal)
4540 - shorts_this_frag * 2),
4542 &the_ins.reloc[m].exp,
4543 the_ins.reloc[m].pcrel,
4544 get_reloc_code (wid, the_ins.reloc[m].pcrel,
4545 the_ins.reloc[m].pic_reloc));
4546 fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix;
4550 /* Comparison function used by qsort to rank the opcode entries by name. */
4553 m68k_compare_opcode (const void * v1, const void * v2)
4555 struct m68k_opcode * op1, * op2;
4561 op1 = *(struct m68k_opcode **) v1;
4562 op2 = *(struct m68k_opcode **) v2;
4564 /* Compare the two names. If different, return the comparison.
4565 If the same, return the order they are in the opcode table. */
4566 ret = strcmp (op1->name, op2->name);
4577 const struct m68k_opcode *ins;
4578 struct m68k_incant *hack, *slak;
4579 const char *retval = 0; /* Empty string, or error msg text. */
4582 /* Set up hash tables with 68000 instructions.
4583 similar to what the vax assembler does. */
4584 /* RMS claims the thing to do is take the m68k-opcode.h table, and make
4585 a copy of it at runtime, adding in the information we want but isn't
4586 there. I think it'd be better to have an awk script hack the table
4587 at compile time. Or even just xstr the table and use it as-is. But
4588 my lord ghod hath spoken, so we do it this way. Excuse the ugly var
4593 flag_reg_prefix_optional = 1;
4595 if (! m68k_rel32_from_cmdline)
4599 /* First sort the opcode table into alphabetical order to seperate
4600 the order that the assembler wants to see the opcodes from the
4601 order that the disassembler wants to see them. */
4602 m68k_sorted_opcodes = xmalloc (m68k_numopcodes * sizeof (* m68k_sorted_opcodes));
4603 if (!m68k_sorted_opcodes)
4604 as_fatal (_("Internal Error: Can't allocate m68k_sorted_opcodes of size %d"),
4605 m68k_numopcodes * ((int) sizeof (* m68k_sorted_opcodes)));
4607 for (i = m68k_numopcodes; i--;)
4608 m68k_sorted_opcodes[i] = m68k_opcodes + i;
4610 qsort (m68k_sorted_opcodes, m68k_numopcodes,
4611 sizeof (m68k_sorted_opcodes[0]), m68k_compare_opcode);
4613 op_hash = hash_new ();
4615 obstack_begin (&robyn, 4000);
4616 for (i = 0; i < m68k_numopcodes; i++)
4618 hack = slak = obstack_alloc (&robyn, sizeof (struct m68k_incant));
4621 ins = m68k_sorted_opcodes[i];
4623 /* We must enter all insns into the table, because .arch and
4624 .cpu directives can change things. */
4625 slak->m_operands = ins->args;
4626 slak->m_arch = ins->arch;
4627 slak->m_opcode = ins->opcode;
4629 /* In most cases we can determine the number of opcode words
4630 by checking the second word of the mask. Unfortunately
4631 some instructions have 2 opcode words, but no fixed bits
4632 in the second word. A leading dot in the operands
4633 string also indicates 2 opcodes. */
4634 if (*slak->m_operands == '.')
4637 slak->m_codenum = 2;
4639 else if (ins->match & 0xffffL)
4640 slak->m_codenum = 2;
4642 slak->m_codenum = 1;
4643 slak->m_opnum = strlen (slak->m_operands) / 2;
4645 if (i + 1 != m68k_numopcodes
4646 && !strcmp (ins->name, m68k_sorted_opcodes[i + 1]->name))
4648 slak->m_next = obstack_alloc (&robyn, sizeof (struct m68k_incant));
4653 slak = slak->m_next;
4657 retval = hash_insert (op_hash, ins->name, (char *) hack);
4659 as_fatal (_("Internal Error: Can't hash %s: %s"), ins->name, retval);
4662 for (i = 0; i < m68k_numaliases; i++)
4664 const char *name = m68k_opcode_aliases[i].primary;
4665 const char *alias = m68k_opcode_aliases[i].alias;
4666 void *val = hash_find (op_hash, name);
4669 as_fatal (_("Internal Error: Can't find %s in hash table"), name);
4670 retval = hash_insert (op_hash, alias, val);
4672 as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval);
4675 /* In MRI mode, all unsized branches are variable sized. Normally,
4676 they are word sized. */
4679 static struct m68k_opcode_alias mri_aliases[] =
4700 i < (int) (sizeof mri_aliases / sizeof mri_aliases[0]);
4703 const char *name = mri_aliases[i].primary;
4704 const char *alias = mri_aliases[i].alias;
4705 void *val = hash_find (op_hash, name);
4708 as_fatal (_("Internal Error: Can't find %s in hash table"), name);
4709 retval = hash_jam (op_hash, alias, val);
4711 as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval);
4715 for (i = 0; i < (int) sizeof (notend_table); i++)
4717 notend_table[i] = 0;
4718 alt_notend_table[i] = 0;
4721 notend_table[','] = 1;
4722 notend_table['{'] = 1;
4723 notend_table['}'] = 1;
4724 alt_notend_table['a'] = 1;
4725 alt_notend_table['A'] = 1;
4726 alt_notend_table['d'] = 1;
4727 alt_notend_table['D'] = 1;
4728 alt_notend_table['#'] = 1;
4729 alt_notend_table['&'] = 1;
4730 alt_notend_table['f'] = 1;
4731 alt_notend_table['F'] = 1;
4732 #ifdef REGISTER_PREFIX
4733 alt_notend_table[REGISTER_PREFIX] = 1;
4736 /* We need to put '(' in alt_notend_table to handle
4737 cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) */
4738 alt_notend_table['('] = 1;
4740 /* We need to put '@' in alt_notend_table to handle
4741 cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) */
4742 alt_notend_table['@'] = 1;
4744 /* We need to put digits in alt_notend_table to handle
4745 bfextu %d0{24:1},%d0 */
4746 alt_notend_table['0'] = 1;
4747 alt_notend_table['1'] = 1;
4748 alt_notend_table['2'] = 1;
4749 alt_notend_table['3'] = 1;
4750 alt_notend_table['4'] = 1;
4751 alt_notend_table['5'] = 1;
4752 alt_notend_table['6'] = 1;
4753 alt_notend_table['7'] = 1;
4754 alt_notend_table['8'] = 1;
4755 alt_notend_table['9'] = 1;
4757 #ifndef MIT_SYNTAX_ONLY
4758 /* Insert pseudo ops, these have to go into the opcode table since
4759 gas expects pseudo ops to start with a dot. */
4763 while (mote_pseudo_table[n].poc_name)
4765 hack = obstack_alloc (&robyn, sizeof (struct m68k_incant));
4766 hash_insert (op_hash,
4767 mote_pseudo_table[n].poc_name, (char *) hack);
4768 hack->m_operands = 0;
4778 record_alignment (text_section, 2);
4779 record_alignment (data_section, 2);
4780 record_alignment (bss_section, 2);
4785 /* This is called when a label is defined. */
4788 m68k_frob_label (symbolS *sym)
4790 struct label_line *n;
4792 n = (struct label_line *) xmalloc (sizeof *n);
4795 as_where (&n->file, &n->line);
4801 dwarf2_emit_label (sym);
4805 /* This is called when a value that is not an instruction is emitted. */
4808 m68k_flush_pending_output (void)
4810 current_label = NULL;
4813 /* This is called at the end of the assembly, when the final value of
4814 the label is known. We warn if this is a text symbol aligned at an
4818 m68k_frob_symbol (symbolS *sym)
4820 if (S_GET_SEGMENT (sym) == reg_section
4821 && (int) S_GET_VALUE (sym) < 0)
4823 S_SET_SEGMENT (sym, absolute_section);
4824 S_SET_VALUE (sym, ~(int)S_GET_VALUE (sym));
4826 else if ((S_GET_VALUE (sym) & 1) != 0)
4828 struct label_line *l;
4830 for (l = labels; l != NULL; l = l->next)
4832 if (l->label == sym)
4835 as_warn_where (l->file, l->line,
4836 _("text label `%s' aligned to odd boundary"),
4844 /* This is called if we go in or out of MRI mode because of the .mri
4848 m68k_mri_mode_change (int on)
4852 if (! flag_reg_prefix_optional)
4854 flag_reg_prefix_optional = 1;
4855 #ifdef REGISTER_PREFIX
4860 if (! m68k_rel32_from_cmdline)
4865 if (! reg_prefix_optional_seen)
4867 #ifdef REGISTER_PREFIX_OPTIONAL
4868 flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL;
4870 flag_reg_prefix_optional = 0;
4872 #ifdef REGISTER_PREFIX
4877 if (! m68k_rel32_from_cmdline)
4883 md_atof (int type, char *litP, int *sizeP)
4885 return ieee_md_atof (type, litP, sizeP, TRUE);
4889 md_number_to_chars (char *buf, valueT val, int n)
4891 number_to_chars_bigendian (buf, val, n);
4895 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
4897 offsetT val = *valP;
4898 addressT upper_limit;
4899 offsetT lower_limit;
4901 /* This is unnecessary but it convinces the native rs6000 compiler
4902 to generate the code we want. */
4903 char *buf = fixP->fx_frag->fr_literal;
4904 buf += fixP->fx_where;
4905 /* End ibm compiler workaround. */
4909 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
4915 memset (buf, 0, fixP->fx_size);
4916 fixP->fx_addnumber = val; /* Remember value for emit_reloc. */
4918 if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
4919 && !S_IS_DEFINED (fixP->fx_addsy)
4920 && !S_IS_WEAK (fixP->fx_addsy))
4921 S_SET_WEAK (fixP->fx_addsy);
4923 switch (fixP->fx_r_type)
4925 case BFD_RELOC_68K_TLS_GD32:
4926 case BFD_RELOC_68K_TLS_GD16:
4927 case BFD_RELOC_68K_TLS_GD8:
4928 case BFD_RELOC_68K_TLS_LDM32:
4929 case BFD_RELOC_68K_TLS_LDM16:
4930 case BFD_RELOC_68K_TLS_LDM8:
4931 case BFD_RELOC_68K_TLS_LDO32:
4932 case BFD_RELOC_68K_TLS_LDO16:
4933 case BFD_RELOC_68K_TLS_LDO8:
4934 case BFD_RELOC_68K_TLS_IE32:
4935 case BFD_RELOC_68K_TLS_IE16:
4936 case BFD_RELOC_68K_TLS_IE8:
4937 case BFD_RELOC_68K_TLS_LE32:
4938 case BFD_RELOC_68K_TLS_LE16:
4939 case BFD_RELOC_68K_TLS_LE8:
4940 S_SET_THREAD_LOCAL (fixP->fx_addsy);
4949 #elif defined(OBJ_AOUT)
4950 /* PR gas/3041 Do not fix frags referencing a weak symbol. */
4951 if (fixP->fx_addsy && S_IS_WEAK (fixP->fx_addsy))
4953 memset (buf, 0, fixP->fx_size);
4954 fixP->fx_addnumber = val; /* Remember value for emit_reloc. */
4959 if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
4960 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
4963 switch (fixP->fx_size)
4965 /* The cast to offsetT below are necessary to make code
4966 correct for machines where ints are smaller than offsetT. */
4970 lower_limit = - (offsetT) 0x80;
4973 *buf++ = (val >> 8);
4975 upper_limit = 0x7fff;
4976 lower_limit = - (offsetT) 0x8000;
4979 *buf++ = (val >> 24);
4980 *buf++ = (val >> 16);
4981 *buf++ = (val >> 8);
4983 upper_limit = 0x7fffffff;
4984 lower_limit = - (offsetT) 0x7fffffff - 1; /* Avoid constant overflow. */
4987 BAD_CASE (fixP->fx_size);
4990 /* Fix up a negative reloc. */
4991 if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL)
4993 fixP->fx_addsy = fixP->fx_subsy;
4994 fixP->fx_subsy = NULL;
4998 /* For non-pc-relative values, it's conceivable we might get something
4999 like "0xff" for a byte field. So extend the upper part of the range
5000 to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff",
5001 so that we can do any range checking at all. */
5002 if (! fixP->fx_pcrel && ! fixP->fx_signed)
5003 upper_limit = upper_limit * 2 + 1;
5005 if ((addressT) val > upper_limit
5006 && (val > 0 || val < lower_limit))
5007 as_bad_where (fixP->fx_file, fixP->fx_line,
5008 _("value %ld out of range"), (long)val);
5010 /* A one byte PC-relative reloc means a short branch. We can't use
5011 a short branch with a value of 0 or -1, because those indicate
5012 different opcodes (branches with longer offsets). fixup_segment
5013 in write.c may have clobbered fx_pcrel, so we need to examine the
5016 || fixP->fx_r_type == BFD_RELOC_8_PCREL)
5017 && fixP->fx_size == 1
5018 && (fixP->fx_addsy == NULL
5019 || S_IS_DEFINED (fixP->fx_addsy))
5020 && (val == 0 || val == -1))
5021 as_bad_where (fixP->fx_file, fixP->fx_line,
5022 _("invalid byte branch offset"));
5025 /* *fragP has been relaxed to its final size, and now needs to have
5026 the bytes inside it modified to conform to the new size There is UGLY
5030 md_convert_frag_1 (fragS *fragP)
5035 /* Address in object code of the displacement. */
5036 register int object_address = fragP->fr_fix + fragP->fr_address;
5038 /* Address in gas core of the place to store the displacement. */
5039 /* This convinces the native rs6000 compiler to generate the code we
5041 register char *buffer_address = fragP->fr_literal;
5042 buffer_address += fragP->fr_fix;
5043 /* End ibm compiler workaround. */
5045 /* The displacement of the address, from current location. */
5046 disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
5047 disp = (disp + fragP->fr_offset) - object_address;
5049 switch (fragP->fr_subtype)
5051 case TAB (BRANCHBWL, BYTE):
5052 case TAB (BRABSJUNC, BYTE):
5053 case TAB (BRABSJCOND, BYTE):
5054 case TAB (BRANCHBW, BYTE):
5055 case TAB (BRANCHBWPL, BYTE):
5056 know (issbyte (disp));
5058 as_bad_where (fragP->fr_file, fragP->fr_line,
5059 _("short branch with zero offset: use :w"));
5060 fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol,
5061 fragP->fr_offset, 1, RELAX_RELOC_PC8);
5062 fixP->fx_pcrel_adjust = -1;
5064 case TAB (BRANCHBWL, SHORT):
5065 case TAB (BRABSJUNC, SHORT):
5066 case TAB (BRABSJCOND, SHORT):
5067 case TAB (BRANCHBW, SHORT):
5068 case TAB (BRANCHBWPL, SHORT):
5069 fragP->fr_opcode[1] = 0x00;
5070 fixP = fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
5071 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5074 case TAB (BRANCHBWL, LONG):
5075 fragP->fr_opcode[1] = (char) 0xFF;
5076 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5077 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5080 case TAB (BRANCHBWPL, LONG):
5081 /* Here we are converting an unconditional branch into a pair of
5082 conditional branches, in order to get the range. */
5083 fragP->fr_opcode[0] = 0x66; /* bne */
5084 fragP->fr_opcode[1] = 0xFF;
5085 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5086 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5087 fixP->fx_file = fragP->fr_file;
5088 fixP->fx_line = fragP->fr_line;
5089 fragP->fr_fix += 4; /* Skip first offset */
5090 buffer_address += 4;
5091 *buffer_address++ = 0x67; /* beq */
5092 *buffer_address++ = 0xff;
5093 fragP->fr_fix += 2; /* Skip second branch opcode */
5094 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5095 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5098 case TAB (BRABSJUNC, LONG):
5099 if (fragP->fr_opcode[0] == 0x61) /* jbsr */
5101 if (flag_keep_pcrel)
5102 as_bad_where (fragP->fr_file, fragP->fr_line,
5103 _("Conversion of PC relative BSR to absolute JSR"));
5104 fragP->fr_opcode[0] = 0x4E;
5105 fragP->fr_opcode[1] = (char) 0xB9; /* JSR with ABSL LONG operand. */
5106 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5107 fragP->fr_offset, 0, RELAX_RELOC_ABS32);
5110 else if (fragP->fr_opcode[0] == 0x60) /* jbra */
5112 if (flag_keep_pcrel)
5113 as_bad_where (fragP->fr_file, fragP->fr_line,
5114 _("Conversion of PC relative branch to absolute jump"));
5115 fragP->fr_opcode[0] = 0x4E;
5116 fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG operand. */
5117 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5118 fragP->fr_offset, 0, RELAX_RELOC_ABS32);
5123 /* This cannot happen, because jbsr and jbra are the only two
5124 unconditional branches. */
5128 case TAB (BRABSJCOND, LONG):
5129 if (flag_keep_pcrel)
5130 as_bad_where (fragP->fr_file, fragP->fr_line,
5131 _("Conversion of PC relative conditional branch to absolute jump"));
5133 /* Only Bcc 68000 instructions can come here
5134 Change bcc into b!cc/jmp absl long. */
5135 fragP->fr_opcode[0] ^= 0x01; /* Invert bcc. */
5136 fragP->fr_opcode[1] = 0x06; /* Branch offset = 6. */
5138 /* JF: these used to be fr_opcode[2,3], but they may be in a
5139 different frag, in which case referring to them is a no-no.
5140 Only fr_opcode[0,1] are guaranteed to work. */
5141 *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */
5142 *buffer_address++ = (char) 0xf9;
5143 fragP->fr_fix += 2; /* Account for jmp instruction. */
5144 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5145 fragP->fr_offset, 0, RELAX_RELOC_ABS32);
5148 case TAB (FBRANCH, SHORT):
5149 know ((fragP->fr_opcode[1] & 0x40) == 0);
5150 fixP = fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
5151 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5154 case TAB (FBRANCH, LONG):
5155 fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit. */
5156 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5157 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5160 case TAB (DBCCLBR, SHORT):
5161 case TAB (DBCCABSJ, SHORT):
5162 fixP = fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
5163 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5166 case TAB (DBCCLBR, LONG):
5167 /* Only DBcc instructions can come here.
5168 Change dbcc into dbcc/bral.
5169 JF: these used to be fr_opcode[2-7], but that's wrong. */
5170 *buffer_address++ = 0x00; /* Branch offset = 4. */
5171 *buffer_address++ = 0x04;
5172 *buffer_address++ = 0x60; /* Put in bra pc+6. */
5173 *buffer_address++ = 0x06;
5174 *buffer_address++ = 0x60; /* Put in bral (0x60ff). */
5175 *buffer_address++ = (char) 0xff;
5177 fragP->fr_fix += 6; /* Account for bra/jmp instructions. */
5178 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5179 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5182 case TAB (DBCCABSJ, LONG):
5183 /* Only DBcc instructions can come here.
5184 Change dbcc into dbcc/jmp.
5185 JF: these used to be fr_opcode[2-7], but that's wrong. */
5186 if (flag_keep_pcrel)
5187 as_bad_where (fragP->fr_file, fragP->fr_line,
5188 _("Conversion of PC relative conditional branch to absolute jump"));
5190 *buffer_address++ = 0x00; /* Branch offset = 4. */
5191 *buffer_address++ = 0x04;
5192 *buffer_address++ = 0x60; /* Put in bra pc + 6. */
5193 *buffer_address++ = 0x06;
5194 *buffer_address++ = 0x4e; /* Put in jmp long (0x4ef9). */
5195 *buffer_address++ = (char) 0xf9;
5197 fragP->fr_fix += 6; /* Account for bra/jmp instructions. */
5198 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5199 fragP->fr_offset, 0, RELAX_RELOC_ABS32);
5202 case TAB (PCREL1632, SHORT):
5203 fragP->fr_opcode[1] &= ~0x3F;
5204 fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */
5205 fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol,
5206 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5209 case TAB (PCREL1632, LONG):
5210 /* Already set to mode 7.3; this indicates: PC indirect with
5211 suppressed index, 32-bit displacement. */
5212 *buffer_address++ = 0x01;
5213 *buffer_address++ = 0x70;
5215 fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol,
5216 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5217 fixP->fx_pcrel_adjust = 2;
5220 case TAB (PCINDEX, BYTE):
5221 gas_assert (fragP->fr_fix >= 2);
5222 buffer_address[-2] &= ~1;
5223 fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol,
5224 fragP->fr_offset, 1, RELAX_RELOC_PC8);
5225 fixP->fx_pcrel_adjust = 1;
5227 case TAB (PCINDEX, SHORT):
5228 gas_assert (fragP->fr_fix >= 2);
5229 buffer_address[-2] |= 0x1;
5230 buffer_address[-1] = 0x20;
5231 fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol,
5232 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5233 fixP->fx_pcrel_adjust = 2;
5236 case TAB (PCINDEX, LONG):
5237 gas_assert (fragP->fr_fix >= 2);
5238 buffer_address[-2] |= 0x1;
5239 buffer_address[-1] = 0x30;
5240 fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol,
5241 fragP->fr_offset, 1, RELAX_RELOC_PC32);
5242 fixP->fx_pcrel_adjust = 2;
5245 case TAB (ABSTOPCREL, SHORT):
5246 fixP = fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
5247 fragP->fr_offset, 1, RELAX_RELOC_PC16);
5250 case TAB (ABSTOPCREL, LONG):
5251 if (flag_keep_pcrel)
5252 as_bad_where (fragP->fr_file, fragP->fr_line,
5253 _("Conversion of PC relative displacement to absolute"));
5254 /* The thing to do here is force it to ABSOLUTE LONG, since
5255 ABSTOPCREL is really trying to shorten an ABSOLUTE address anyway. */
5256 if ((fragP->fr_opcode[1] & 0x3F) != 0x3A)
5258 fragP->fr_opcode[1] &= ~0x3F;
5259 fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */
5260 fixP = fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
5261 fragP->fr_offset, 0, RELAX_RELOC_ABS32);
5267 fixP->fx_file = fragP->fr_file;
5268 fixP->fx_line = fragP->fr_line;
5273 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5274 segT sec ATTRIBUTE_UNUSED,
5277 md_convert_frag_1 (fragP);
5280 /* Force truly undefined symbols to their maximum size, and generally set up
5281 the frag list to be relaxed
5284 md_estimate_size_before_relax (fragS *fragP, segT segment)
5286 /* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */
5287 switch (fragP->fr_subtype)
5289 case TAB (BRANCHBWL, SZ_UNDEF):
5290 case TAB (BRANCHBWPL, SZ_UNDEF):
5291 case TAB (BRABSJUNC, SZ_UNDEF):
5292 case TAB (BRABSJCOND, SZ_UNDEF):
5294 if (S_GET_SEGMENT (fragP->fr_symbol) == segment
5295 && relaxable_symbol (fragP->fr_symbol))
5297 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE);
5299 else if (flag_short_refs)
5301 /* Symbol is undefined and we want short ref. */
5302 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
5306 /* Symbol is still undefined. Make it LONG. */
5307 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG);
5312 case TAB (BRANCHBW, SZ_UNDEF):
5314 if (S_GET_SEGMENT (fragP->fr_symbol) == segment
5315 && relaxable_symbol (fragP->fr_symbol))
5317 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE);
5321 /* Symbol is undefined and we don't have long branches. */
5322 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
5327 case TAB (FBRANCH, SZ_UNDEF):
5328 case TAB (DBCCLBR, SZ_UNDEF):
5329 case TAB (DBCCABSJ, SZ_UNDEF):
5330 case TAB (PCREL1632, SZ_UNDEF):
5332 if ((S_GET_SEGMENT (fragP->fr_symbol) == segment
5333 && relaxable_symbol (fragP->fr_symbol))
5336 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
5340 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG);
5345 case TAB (PCINDEX, SZ_UNDEF):
5346 if ((S_GET_SEGMENT (fragP->fr_symbol) == segment
5347 && relaxable_symbol (fragP->fr_symbol)))
5349 fragP->fr_subtype = TAB (PCINDEX, BYTE);
5353 fragP->fr_subtype = TAB (PCINDEX, LONG);
5357 case TAB (ABSTOPCREL, SZ_UNDEF):
5359 if ((S_GET_SEGMENT (fragP->fr_symbol) == segment
5360 && relaxable_symbol (fragP->fr_symbol)))
5362 fragP->fr_subtype = TAB (ABSTOPCREL, SHORT);
5366 fragP->fr_subtype = TAB (ABSTOPCREL, LONG);
5375 /* Now that SZ_UNDEF are taken care of, check others. */
5376 switch (fragP->fr_subtype)
5378 case TAB (BRANCHBWL, BYTE):
5379 case TAB (BRABSJUNC, BYTE):
5380 case TAB (BRABSJCOND, BYTE):
5381 case TAB (BRANCHBW, BYTE):
5382 /* We can't do a short jump to the next instruction, so in that
5383 case we force word mode. If the symbol is at the start of a
5384 frag, and it is the next frag with any data in it (usually
5385 this is just the next frag, but assembler listings may
5386 introduce empty frags), we must use word mode. */
5387 if (fragP->fr_symbol)
5391 sym_frag = symbol_get_frag (fragP->fr_symbol);
5392 if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address)
5396 for (l = fragP->fr_next; l && l != sym_frag; l = l->fr_next)
5400 fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
5407 return md_relax_table[fragP->fr_subtype].rlx_length;
5410 #if defined(OBJ_AOUT) | defined(OBJ_BOUT)
5411 /* the bit-field entries in the relocation_info struct plays hell
5412 with the byte-order problems of cross-assembly. So as a hack,
5413 I added this mach. dependent ri twiddler. Ugly, but it gets
5415 /* on m68k: first 4 bytes are normal unsigned long, next three bytes
5416 are symbolnum, most sig. byte first. Last byte is broken up with
5417 bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower
5418 nibble as nuthin. (on Sun 3 at least) */
5419 /* Translate the internal relocation information into target-specific
5423 md_ri_to_chars (char *the_bytes, struct reloc_info_generic *ri)
5426 md_number_to_chars (the_bytes, ri->r_address, 4);
5427 /* Now the fun stuff. */
5428 the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff;
5429 the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff;
5430 the_bytes[6] = ri->r_symbolnum & 0x0ff;
5431 the_bytes[7] = (((ri->r_pcrel << 7) & 0x80)
5432 | ((ri->r_length << 5) & 0x60)
5433 | ((ri->r_extern << 4) & 0x10));
5438 #endif /* OBJ_AOUT or OBJ_BOUT */
5440 #ifndef WORKING_DOT_WORD
5441 int md_short_jump_size = 4;
5442 int md_long_jump_size = 6;
5445 md_create_short_jump (char *ptr, addressT from_addr, addressT to_addr,
5446 fragS *frag ATTRIBUTE_UNUSED,
5447 symbolS *to_symbol ATTRIBUTE_UNUSED)
5451 offset = to_addr - (from_addr + 2);
5453 md_number_to_chars (ptr, (valueT) 0x6000, 2);
5454 md_number_to_chars (ptr + 2, (valueT) offset, 2);
5458 md_create_long_jump (char *ptr, addressT from_addr, addressT to_addr,
5459 fragS *frag, symbolS *to_symbol)
5463 if (!HAVE_LONG_BRANCH (current_architecture))
5465 if (flag_keep_pcrel)
5466 as_fatal (_("Tried to convert PC relative branch to absolute jump"));
5467 offset = to_addr - S_GET_VALUE (to_symbol);
5468 md_number_to_chars (ptr, (valueT) 0x4EF9, 2);
5469 md_number_to_chars (ptr + 2, (valueT) offset, 4);
5470 fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0,
5475 offset = to_addr - (from_addr + 2);
5476 md_number_to_chars (ptr, (valueT) 0x60ff, 2);
5477 md_number_to_chars (ptr + 2, (valueT) offset, 4);
5483 /* Different values of OK tell what its OK to return. Things that
5484 aren't OK are an error (what a shock, no?)
5487 10: Absolute 1:8 only
5488 20: Absolute 0:7 only
5489 30: absolute 0:15 only
5490 40: Absolute 0:31 only
5491 50: absolute 0:127 only
5492 55: absolute -64:63 only
5493 60: absolute -128:127 only
5494 65: absolute 0:511 only
5495 70: absolute 0:4095 only
5496 80: absolute -1, 1:7 only
5500 get_num (struct m68k_exp *exp, int ok)
5502 if (exp->exp.X_op == O_absent)
5504 /* Do the same thing the VAX asm does. */
5505 op (exp) = O_constant;
5511 as_warn (_("expression out of range: defaulting to 1"));
5515 else if (exp->exp.X_op == O_constant)
5520 if ((valueT) TRUNC (offs (exp)) - 1 > 7)
5522 as_warn (_("expression out of range: defaulting to 1"));
5527 if ((valueT) TRUNC (offs (exp)) > 7)
5531 if ((valueT) TRUNC (offs (exp)) > 15)
5535 if ((valueT) TRUNC (offs (exp)) > 32)
5539 if ((valueT) TRUNC (offs (exp)) > 127)
5543 if ((valueT) SEXT (offs (exp)) + 64 > 127)
5547 if ((valueT) SEXT (offs (exp)) + 128 > 255)
5551 if ((valueT) TRUNC (offs (exp)) > 511)
5555 if ((valueT) TRUNC (offs (exp)) > 4095)
5558 as_warn (_("expression out of range: defaulting to 0"));
5563 if ((valueT) TRUNC (offs (exp)) != 0xffffffff
5564 && (valueT) TRUNC (offs (exp)) - 1 > 6)
5566 as_warn (_("expression out of range: defaulting to 1"));
5574 else if (exp->exp.X_op == O_big)
5576 if (offs (exp) <= 0 /* flonum. */
5577 && (ok == 90 /* no bignums */
5578 || (ok > 10 /* Small-int ranges including 0 ok. */
5579 /* If we have a flonum zero, a zero integer should
5580 do as well (e.g., in moveq). */
5581 && generic_floating_point_number.exponent == 0
5582 && generic_floating_point_number.low[0] == 0)))
5584 /* HACK! Turn it into a long. */
5585 LITTLENUM_TYPE words[6];
5587 gen_to_words (words, 2, 8L); /* These numbers are magic! */
5588 op (exp) = O_constant;
5591 offs (exp) = words[1] | (words[0] << 16);
5595 op (exp) = O_constant;
5598 offs (exp) = (ok == 10) ? 1 : 0;
5599 as_warn (_("Can't deal with expression; defaulting to %ld"),
5605 if (ok >= 10 && ok <= 80)
5607 op (exp) = O_constant;
5610 offs (exp) = (ok == 10) ? 1 : 0;
5611 as_warn (_("Can't deal with expression; defaulting to %ld"),
5616 if (exp->size != SIZE_UNSPEC)
5624 if (!isbyte (offs (exp)))
5625 as_warn (_("expression doesn't fit in BYTE"));
5628 if (!isword (offs (exp)))
5629 as_warn (_("expression doesn't fit in WORD"));
5637 /* These are the back-ends for the various machine dependent pseudo-ops. */
5640 s_data1 (int ignore ATTRIBUTE_UNUSED)
5642 subseg_set (data_section, 1);
5643 demand_empty_rest_of_line ();
5647 s_data2 (int ignore ATTRIBUTE_UNUSED)
5649 subseg_set (data_section, 2);
5650 demand_empty_rest_of_line ();
5654 s_bss (int ignore ATTRIBUTE_UNUSED)
5656 /* We don't support putting frags in the BSS segment, we fake it
5657 by marking in_bss, then looking at s_skip for clues. */
5659 subseg_set (bss_section, 0);
5660 demand_empty_rest_of_line ();
5664 s_even (int ignore ATTRIBUTE_UNUSED)
5667 register long temp_fill;
5669 temp = 1; /* JF should be 2? */
5670 temp_fill = get_absolute_expression ();
5671 if (!need_pass_2) /* Never make frag if expect extra pass. */
5672 frag_align (temp, (int) temp_fill, 0);
5673 demand_empty_rest_of_line ();
5674 record_alignment (now_seg, temp);
5678 s_proc (int ignore ATTRIBUTE_UNUSED)
5680 demand_empty_rest_of_line ();
5683 /* Pseudo-ops handled for MRI compatibility. */
5685 /* This function returns non-zero if the argument is a conditional
5686 pseudo-op. This is called when checking whether a pending
5687 alignment is needed. */
5690 m68k_conditional_pseudoop (pseudo_typeS *pop)
5692 return (pop->poc_handler == s_mri_if
5693 || pop->poc_handler == s_mri_else);
5696 /* Handle an MRI style chip specification. */
5705 s = input_line_pointer;
5706 /* We can't use get_symbol_end since the processor names are not proper
5708 while (is_part_of_name (c = *input_line_pointer++))
5710 *--input_line_pointer = 0;
5711 for (i = 0; m68k_cpus[i].name; i++)
5712 if (strcasecmp (s, m68k_cpus[i].name) == 0)
5714 if (!m68k_cpus[i].name)
5716 as_bad (_("%s: unrecognized processor name"), s);
5717 *input_line_pointer = c;
5718 ignore_rest_of_line ();
5721 *input_line_pointer = c;
5723 if (*input_line_pointer == '/')
5724 current_architecture = 0;
5726 current_architecture &= m68881 | m68851;
5727 current_architecture |= m68k_cpus[i].arch & ~(m68881 | m68851);
5728 control_regs = m68k_cpus[i].control_regs;
5730 while (*input_line_pointer == '/')
5732 ++input_line_pointer;
5733 s = input_line_pointer;
5734 /* We can't use get_symbol_end since the processor names are not
5736 while (is_part_of_name (c = *input_line_pointer++))
5738 *--input_line_pointer = 0;
5739 if (strcmp (s, "68881") == 0)
5740 current_architecture |= m68881;
5741 else if (strcmp (s, "68851") == 0)
5742 current_architecture |= m68851;
5743 *input_line_pointer = c;
5747 /* The MRI CHIP pseudo-op. */
5750 s_chip (int ignore ATTRIBUTE_UNUSED)
5756 stop = mri_comment_field (&stopc);
5759 mri_comment_end (stop, stopc);
5760 demand_empty_rest_of_line ();
5763 /* The MRI FOPT pseudo-op. */
5766 s_fopt (int ignore ATTRIBUTE_UNUSED)
5770 if (strncasecmp (input_line_pointer, "ID=", 3) == 0)
5774 input_line_pointer += 3;
5775 temp = get_absolute_expression ();
5776 if (temp < 0 || temp > 7)
5777 as_bad (_("bad coprocessor id"));
5779 m68k_float_copnum = COP0 + temp;
5783 as_bad (_("unrecognized fopt option"));
5784 ignore_rest_of_line ();
5788 demand_empty_rest_of_line ();
5791 /* The structure used to handle the MRI OPT pseudo-op. */
5795 /* The name of the option. */
5798 /* If this is not NULL, just call this function. The first argument
5799 is the ARG field of this structure, the second argument is
5800 whether the option was negated. */
5801 void (*pfn) (int arg, int on);
5803 /* If this is not NULL, and the PFN field is NULL, set the variable
5804 this points to. Set it to the ARG field if the option was not
5805 negated, and the NOTARG field otherwise. */
5808 /* The value to pass to PFN or to assign to *PVAR. */
5811 /* The value to assign to *PVAR if the option is negated. If PFN is
5812 NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then
5813 the option may not be negated. */
5817 /* The table used to handle the MRI OPT pseudo-op. */
5819 static void skip_to_comma (int, int);
5820 static void opt_nest (int, int);
5821 static void opt_chip (int, int);
5822 static void opt_list (int, int);
5823 static void opt_list_symbols (int, int);
5825 static const struct opt_action opt_table[] =
5827 { "abspcadd", 0, &m68k_abspcadd, 1, 0 },
5829 /* We do relaxing, so there is little use for these options. */
5830 { "b", 0, 0, 0, 0 },
5831 { "brs", 0, 0, 0, 0 },
5832 { "brb", 0, 0, 0, 0 },
5833 { "brl", 0, 0, 0, 0 },
5834 { "brw", 0, 0, 0, 0 },
5836 { "c", 0, 0, 0, 0 },
5837 { "cex", 0, 0, 0, 0 },
5838 { "case", 0, &symbols_case_sensitive, 1, 0 },
5839 { "cl", 0, 0, 0, 0 },
5840 { "cre", 0, 0, 0, 0 },
5841 { "d", 0, &flag_keep_locals, 1, 0 },
5842 { "e", 0, 0, 0, 0 },
5843 { "f", 0, &flag_short_refs, 1, 0 },
5844 { "frs", 0, &flag_short_refs, 1, 0 },
5845 { "frl", 0, &flag_short_refs, 0, 1 },
5846 { "g", 0, 0, 0, 0 },
5847 { "i", 0, 0, 0, 0 },
5848 { "m", 0, 0, 0, 0 },
5849 { "mex", 0, 0, 0, 0 },
5850 { "mc", 0, 0, 0, 0 },
5851 { "md", 0, 0, 0, 0 },
5852 { "nest", opt_nest, 0, 0, 0 },
5853 { "next", skip_to_comma, 0, 0, 0 },
5854 { "o", 0, 0, 0, 0 },
5855 { "old", 0, 0, 0, 0 },
5856 { "op", skip_to_comma, 0, 0, 0 },
5857 { "pco", 0, 0, 0, 0 },
5858 { "p", opt_chip, 0, 0, 0 },
5859 { "pcr", 0, 0, 0, 0 },
5860 { "pcs", 0, 0, 0, 0 },
5861 { "r", 0, 0, 0, 0 },
5862 { "quick", 0, &m68k_quick, 1, 0 },
5863 { "rel32", 0, &m68k_rel32, 1, 0 },
5864 { "s", opt_list, 0, 0, 0 },
5865 { "t", opt_list_symbols, 0, 0, 0 },
5866 { "w", 0, &flag_no_warnings, 0, 1 },
5870 #define OPTCOUNT ((int) (sizeof opt_table / sizeof opt_table[0]))
5872 /* The MRI OPT pseudo-op. */
5875 s_opt (int ignore ATTRIBUTE_UNUSED)
5883 const struct opt_action *o;
5888 if (*input_line_pointer == '-')
5890 ++input_line_pointer;
5893 else if (strncasecmp (input_line_pointer, "NO", 2) == 0)
5895 input_line_pointer += 2;
5899 s = input_line_pointer;
5900 c = get_symbol_end ();
5902 for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++)
5904 if (strcasecmp (s, o->name) == 0)
5908 /* Restore input_line_pointer now in case the option
5910 *input_line_pointer = c;
5911 (*o->pfn) (o->arg, t);
5913 else if (o->pvar != NULL)
5915 if (! t && o->arg == o->notarg)
5916 as_bad (_("option `%s' may not be negated"), s);
5917 *input_line_pointer = c;
5918 *o->pvar = t ? o->arg : o->notarg;
5921 *input_line_pointer = c;
5927 as_bad (_("option `%s' not recognized"), s);
5928 *input_line_pointer = c;
5931 while (*input_line_pointer++ == ',');
5933 /* Move back to terminating character. */
5934 --input_line_pointer;
5935 demand_empty_rest_of_line ();
5938 /* Skip ahead to a comma. This is used for OPT options which we do
5939 not support and which take arguments. */
5942 skip_to_comma (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED)
5944 while (*input_line_pointer != ','
5945 && ! is_end_of_line[(unsigned char) *input_line_pointer])
5946 ++input_line_pointer;
5949 /* Handle the OPT NEST=depth option. */
5952 opt_nest (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED)
5954 if (*input_line_pointer != '=')
5956 as_bad (_("bad format of OPT NEST=depth"));
5960 ++input_line_pointer;
5961 max_macro_nest = get_absolute_expression ();
5964 /* Handle the OPT P=chip option. */
5967 opt_chip (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED)
5969 if (*input_line_pointer != '=')
5971 /* This is just OPT P, which we do not support. */
5975 ++input_line_pointer;
5979 /* Handle the OPT S option. */
5982 opt_list (int arg ATTRIBUTE_UNUSED, int on)
5987 /* Handle the OPT T option. */
5990 opt_list_symbols (int arg ATTRIBUTE_UNUSED, int on)
5993 listing |= LISTING_SYMBOLS;
5995 listing &= ~LISTING_SYMBOLS;
5998 /* Handle the MRI REG pseudo-op. */
6001 s_reg (int ignore ATTRIBUTE_UNUSED)
6010 if (line_label == NULL)
6012 as_bad (_("missing label"));
6013 ignore_rest_of_line ();
6018 stop = mri_comment_field (&stopc);
6022 s = input_line_pointer;
6023 while (ISALNUM (*input_line_pointer)
6024 #ifdef REGISTER_PREFIX
6025 || *input_line_pointer == REGISTER_PREFIX
6027 || *input_line_pointer == '/'
6028 || *input_line_pointer == '-')
6029 ++input_line_pointer;
6030 c = *input_line_pointer;
6031 *input_line_pointer = '\0';
6033 if (m68k_ip_op (s, &rop) != 0)
6035 if (rop.error == NULL)
6036 as_bad (_("bad register list"));
6038 as_bad (_("bad register list: %s"), rop.error);
6039 *input_line_pointer = c;
6040 ignore_rest_of_line ();
6044 *input_line_pointer = c;
6046 if (rop.mode == REGLST)
6048 else if (rop.mode == DREG)
6049 mask = 1 << (rop.reg - DATA0);
6050 else if (rop.mode == AREG)
6051 mask = 1 << (rop.reg - ADDR0 + 8);
6052 else if (rop.mode == FPREG)
6053 mask = 1 << (rop.reg - FP0 + 16);
6054 else if (rop.mode == CONTROL
6057 else if (rop.mode == CONTROL
6060 else if (rop.mode == CONTROL
6065 as_bad (_("bad register list"));
6066 ignore_rest_of_line ();
6070 S_SET_SEGMENT (line_label, reg_section);
6071 S_SET_VALUE (line_label, ~mask);
6072 symbol_set_frag (line_label, &zero_address_frag);
6075 mri_comment_end (stop, stopc);
6077 demand_empty_rest_of_line ();
6080 /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */
6084 struct save_opts *next;
6086 int symbols_case_sensitive;
6090 const enum m68k_register *control_regs;
6095 /* FIXME: We don't save OPT S. */
6098 /* This variable holds the stack of saved options. */
6100 static struct save_opts *save_stack;
6102 /* The MRI SAVE pseudo-op. */
6105 s_save (int ignore ATTRIBUTE_UNUSED)
6107 struct save_opts *s;
6109 s = (struct save_opts *) xmalloc (sizeof (struct save_opts));
6110 s->abspcadd = m68k_abspcadd;
6111 s->symbols_case_sensitive = symbols_case_sensitive;
6112 s->keep_locals = flag_keep_locals;
6113 s->short_refs = flag_short_refs;
6114 s->architecture = current_architecture;
6115 s->control_regs = control_regs;
6116 s->quick = m68k_quick;
6117 s->rel32 = m68k_rel32;
6118 s->listing = listing;
6119 s->no_warnings = flag_no_warnings;
6121 s->next = save_stack;
6124 demand_empty_rest_of_line ();
6127 /* The MRI RESTORE pseudo-op. */
6130 s_restore (int ignore ATTRIBUTE_UNUSED)
6132 struct save_opts *s;
6134 if (save_stack == NULL)
6136 as_bad (_("restore without save"));
6137 ignore_rest_of_line ();
6142 save_stack = s->next;
6144 m68k_abspcadd = s->abspcadd;
6145 symbols_case_sensitive = s->symbols_case_sensitive;
6146 flag_keep_locals = s->keep_locals;
6147 flag_short_refs = s->short_refs;
6148 current_architecture = s->architecture;
6149 control_regs = s->control_regs;
6150 m68k_quick = s->quick;
6151 m68k_rel32 = s->rel32;
6152 listing = s->listing;
6153 flag_no_warnings = s->no_warnings;
6157 demand_empty_rest_of_line ();
6160 /* Types of MRI structured control directives. */
6162 enum mri_control_type
6170 /* This structure is used to stack the MRI structured control
6173 struct mri_control_info
6175 /* The directive within which this one is enclosed. */
6176 struct mri_control_info *outer;
6178 /* The type of directive. */
6179 enum mri_control_type type;
6181 /* Whether an ELSE has been in an IF. */
6184 /* The add or sub statement at the end of a FOR. */
6187 /* The label of the top of a FOR or REPEAT loop. */
6190 /* The label to jump to for the next iteration, or the else
6191 expression of a conditional. */
6194 /* The label to jump to to break out of the loop, or the label past
6195 the end of a conditional. */
6199 /* The stack of MRI structured control directives. */
6201 static struct mri_control_info *mri_control_stack;
6203 /* The current MRI structured control directive index number, used to
6204 generate label names. */
6206 static int mri_control_index;
6208 /* Assemble an instruction for an MRI structured control directive. */
6211 mri_assemble (char *str)
6215 /* md_assemble expects the opcode to be in lower case. */
6216 for (s = str; *s != ' ' && *s != '\0'; s++)
6222 /* Generate a new MRI label structured control directive label name. */
6225 mri_control_label (void)
6229 n = (char *) xmalloc (20);
6230 sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index);
6231 ++mri_control_index;
6235 /* Create a new MRI structured control directive. */
6237 static struct mri_control_info *
6238 push_mri_control (enum mri_control_type type)
6240 struct mri_control_info *n;
6242 n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info));
6246 if (type == mri_if || type == mri_while)
6249 n->top = mri_control_label ();
6250 n->next = mri_control_label ();
6251 n->bottom = mri_control_label ();
6253 n->outer = mri_control_stack;
6254 mri_control_stack = n;
6259 /* Pop off the stack of MRI structured control directives. */
6262 pop_mri_control (void)
6264 struct mri_control_info *n;
6266 n = mri_control_stack;
6267 mri_control_stack = n->outer;
6275 /* Recognize a condition code in an MRI structured control expression. */
6278 parse_mri_condition (int *pcc)
6282 know (*input_line_pointer == '<');
6284 ++input_line_pointer;
6285 c1 = *input_line_pointer++;
6286 c2 = *input_line_pointer++;
6288 if (*input_line_pointer != '>')
6290 as_bad (_("syntax error in structured control directive"));
6294 ++input_line_pointer;
6300 *pcc = (c1 << 8) | c2;
6305 /* Parse a single operand in an MRI structured control expression. */
6308 parse_mri_control_operand (int *pcc, char **leftstart, char **leftstop,
6309 char **rightstart, char **rightstop)
6321 if (*input_line_pointer == '<')
6323 /* It's just a condition code. */
6324 return parse_mri_condition (pcc);
6327 /* Look ahead for the condition code. */
6328 for (s = input_line_pointer; *s != '\0'; ++s)
6330 if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>')
6335 as_bad (_("missing condition code in structured control directive"));
6339 *leftstart = input_line_pointer;
6341 if (*leftstop > *leftstart
6342 && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t'))
6345 input_line_pointer = s;
6346 if (! parse_mri_condition (pcc))
6349 /* Look ahead for AND or OR or end of line. */
6350 for (s = input_line_pointer; *s != '\0'; ++s)
6352 /* We must make sure we don't misinterpret AND/OR at the end of labels!
6353 if d0 <eq> #FOOAND and d1 <ne> #BAROR then
6355 if ((s == input_line_pointer
6358 && ((strncasecmp (s, "AND", 3) == 0
6359 && (s[3] == '.' || ! is_part_of_name (s[3])))
6360 || (strncasecmp (s, "OR", 2) == 0
6361 && (s[2] == '.' || ! is_part_of_name (s[2])))))
6365 *rightstart = input_line_pointer;
6367 if (*rightstop > *rightstart
6368 && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t'))
6371 input_line_pointer = s;
6376 #define MCC(b1, b2) (((b1) << 8) | (b2))
6378 /* Swap the sense of a condition. This changes the condition so that
6379 it generates the same result when the operands are swapped. */
6382 swap_mri_condition (int cc)
6386 case MCC ('h', 'i'): return MCC ('c', 's');
6387 case MCC ('l', 's'): return MCC ('c', 'c');
6388 /* <HS> is an alias for <CC>. */
6389 case MCC ('h', 's'):
6390 case MCC ('c', 'c'): return MCC ('l', 's');
6391 /* <LO> is an alias for <CS>. */
6392 case MCC ('l', 'o'):
6393 case MCC ('c', 's'): return MCC ('h', 'i');
6394 case MCC ('p', 'l'): return MCC ('m', 'i');
6395 case MCC ('m', 'i'): return MCC ('p', 'l');
6396 case MCC ('g', 'e'): return MCC ('l', 'e');
6397 case MCC ('l', 't'): return MCC ('g', 't');
6398 case MCC ('g', 't'): return MCC ('l', 't');
6399 case MCC ('l', 'e'): return MCC ('g', 'e');
6400 /* Issue a warning for conditions we can not swap. */
6401 case MCC ('n', 'e'): return MCC ('n', 'e'); /* no problem here */
6402 case MCC ('e', 'q'): return MCC ('e', 'q'); /* also no problem */
6403 case MCC ('v', 'c'):
6404 case MCC ('v', 's'):
6406 as_warn (_("Condition <%c%c> in structured control directive can not be encoded correctly"),
6407 (char) (cc >> 8), (char) (cc));
6413 /* Reverse the sense of a condition. */
6416 reverse_mri_condition (int cc)
6420 case MCC ('h', 'i'): return MCC ('l', 's');
6421 case MCC ('l', 's'): return MCC ('h', 'i');
6422 /* <HS> is an alias for <CC> */
6423 case MCC ('h', 's'): return MCC ('l', 'o');
6424 case MCC ('c', 'c'): return MCC ('c', 's');
6425 /* <LO> is an alias for <CS> */
6426 case MCC ('l', 'o'): return MCC ('h', 's');
6427 case MCC ('c', 's'): return MCC ('c', 'c');
6428 case MCC ('n', 'e'): return MCC ('e', 'q');
6429 case MCC ('e', 'q'): return MCC ('n', 'e');
6430 case MCC ('v', 'c'): return MCC ('v', 's');
6431 case MCC ('v', 's'): return MCC ('v', 'c');
6432 case MCC ('p', 'l'): return MCC ('m', 'i');
6433 case MCC ('m', 'i'): return MCC ('p', 'l');
6434 case MCC ('g', 'e'): return MCC ('l', 't');
6435 case MCC ('l', 't'): return MCC ('g', 'e');
6436 case MCC ('g', 't'): return MCC ('l', 'e');
6437 case MCC ('l', 'e'): return MCC ('g', 't');
6442 /* Build an MRI structured control expression. This generates test
6443 and branch instructions. It goes to TRUELAB if the condition is
6444 true, and to FALSELAB if the condition is false. Exactly one of
6445 TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL
6446 is the size qualifier for the expression. EXTENT is the size to
6447 use for the branch. */
6450 build_mri_control_operand (int qual, int cc, char *leftstart, char *leftstop,
6451 char *rightstart, char *rightstop,
6452 const char *truelab, const char *falselab,
6458 if (leftstart != NULL)
6460 struct m68k_op leftop, rightop;
6463 /* Swap the compare operands, if necessary, to produce a legal
6464 m68k compare instruction. Comparing a register operand with
6465 a non-register operand requires the register to be on the
6466 right (cmp, cmpa). Comparing an immediate value with
6467 anything requires the immediate value to be on the left
6472 (void) m68k_ip_op (leftstart, &leftop);
6477 (void) m68k_ip_op (rightstart, &rightop);
6480 if (rightop.mode == IMMED
6481 || ((leftop.mode == DREG || leftop.mode == AREG)
6482 && (rightop.mode != DREG && rightop.mode != AREG)))
6486 /* Correct conditional handling:
6487 if #1 <lt> d0 then ;means if (1 < d0)
6493 cmp #1,d0 if we do *not* swap the operands
6494 bgt true we need the swapped condition!
6501 leftstart = rightstart;
6504 leftstop = rightstop;
6509 cc = swap_mri_condition (cc);
6513 if (truelab == NULL)
6515 cc = reverse_mri_condition (cc);
6519 if (leftstart != NULL)
6521 buf = (char *) xmalloc (20
6522 + (leftstop - leftstart)
6523 + (rightstop - rightstart));
6529 *s++ = TOLOWER (qual);
6531 memcpy (s, leftstart, leftstop - leftstart);
6532 s += leftstop - leftstart;
6534 memcpy (s, rightstart, rightstop - rightstart);
6535 s += rightstop - rightstart;
6541 buf = (char *) xmalloc (20 + strlen (truelab));
6547 *s++ = TOLOWER (extent);
6549 strcpy (s, truelab);
6554 /* Parse an MRI structured control expression. This generates test
6555 and branch instructions. STOP is where the expression ends. It
6556 goes to TRUELAB if the condition is true, and to FALSELAB if the
6557 condition is false. Exactly one of TRUELAB and FALSELAB will be
6558 NULL, meaning to fall through. QUAL is the size qualifier for the
6559 expression. EXTENT is the size to use for the branch. */
6562 parse_mri_control_expression (char *stop, int qual, const char *truelab,
6563 const char *falselab, int extent)
6575 if (! parse_mri_control_operand (&cc, &leftstart, &leftstop,
6576 &rightstart, &rightstop))
6582 if (strncasecmp (input_line_pointer, "AND", 3) == 0)
6586 if (falselab != NULL)
6589 flab = mri_control_label ();
6591 build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart,
6592 rightstop, (const char *) NULL, flab, extent);
6594 input_line_pointer += 3;
6595 if (*input_line_pointer != '.'
6596 || input_line_pointer[1] == '\0')
6600 qual = input_line_pointer[1];
6601 input_line_pointer += 2;
6604 if (! parse_mri_control_operand (&cc, &leftstart, &leftstop,
6605 &rightstart, &rightstop))
6611 build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart,
6612 rightstop, truelab, falselab, extent);
6614 if (falselab == NULL)
6617 else if (strncasecmp (input_line_pointer, "OR", 2) == 0)
6621 if (truelab != NULL)
6624 tlab = mri_control_label ();
6626 build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart,
6627 rightstop, tlab, (const char *) NULL, extent);
6629 input_line_pointer += 2;
6630 if (*input_line_pointer != '.'
6631 || input_line_pointer[1] == '\0')
6635 qual = input_line_pointer[1];
6636 input_line_pointer += 2;
6639 if (! parse_mri_control_operand (&cc, &leftstart, &leftstop,
6640 &rightstart, &rightstop))
6646 build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart,
6647 rightstop, truelab, falselab, extent);
6649 if (truelab == NULL)
6654 build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart,
6655 rightstop, truelab, falselab, extent);
6659 if (input_line_pointer != stop)
6660 as_bad (_("syntax error in structured control directive"));
6663 /* Handle the MRI IF pseudo-op. This may be a structured control
6664 directive, or it may be a regular assembler conditional, depending
6672 struct mri_control_info *n;
6674 /* A structured control directive must end with THEN with an
6675 optional qualifier. */
6676 s = input_line_pointer;
6677 /* We only accept '*' as introduction of comments if preceded by white space
6678 or at first column of a line (I think this can't actually happen here?)
6679 This is important when assembling:
6680 if d0 <ne> 12(a0,d0*2) then
6681 if d0 <ne> #CONST*20 then. */
6682 while (! (is_end_of_line[(unsigned char) *s]
6685 && (s == input_line_pointer
6687 || *(s-1) == '\t'))))
6690 while (s > input_line_pointer && (*s == ' ' || *s == '\t'))
6693 if (s - input_line_pointer > 1
6697 if (s - input_line_pointer < 3
6698 || strncasecmp (s - 3, "THEN", 4) != 0)
6702 as_bad (_("missing then"));
6703 ignore_rest_of_line ();
6707 /* It's a conditional. */
6712 /* Since this might be a conditional if, this pseudo-op will be
6713 called even if we are supported to be ignoring input. Double
6714 check now. Clobber *input_line_pointer so that ignore_input
6715 thinks that this is not a special pseudo-op. */
6716 c = *input_line_pointer;
6717 *input_line_pointer = 0;
6718 if (ignore_input ())
6720 *input_line_pointer = c;
6721 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6722 ++input_line_pointer;
6723 demand_empty_rest_of_line ();
6726 *input_line_pointer = c;
6728 n = push_mri_control (mri_if);
6730 parse_mri_control_expression (s - 3, qual, (const char *) NULL,
6731 n->next, s[1] == '.' ? s[2] : '\0');
6734 input_line_pointer = s + 3;
6736 input_line_pointer = s + 1;
6740 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6741 ++input_line_pointer;
6744 demand_empty_rest_of_line ();
6747 /* Handle the MRI else pseudo-op. If we are currently doing an MRI
6748 structured IF, associate the ELSE with the IF. Otherwise, assume
6749 it is a conditional else. */
6752 s_mri_else (int qual)
6759 && (mri_control_stack == NULL
6760 || mri_control_stack->type != mri_if
6761 || mri_control_stack->else_seen))
6767 c = *input_line_pointer;
6768 *input_line_pointer = 0;
6769 if (ignore_input ())
6771 *input_line_pointer = c;
6772 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6773 ++input_line_pointer;
6774 demand_empty_rest_of_line ();
6777 *input_line_pointer = c;
6779 if (mri_control_stack == NULL
6780 || mri_control_stack->type != mri_if
6781 || mri_control_stack->else_seen)
6783 as_bad (_("else without matching if"));
6784 ignore_rest_of_line ();
6788 mri_control_stack->else_seen = 1;
6790 buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom));
6791 q[0] = TOLOWER (qual);
6793 sprintf (buf, "bra%s %s", q, mri_control_stack->bottom);
6797 colon (mri_control_stack->next);
6801 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6802 ++input_line_pointer;
6805 demand_empty_rest_of_line ();
6808 /* Handle the MRI ENDI pseudo-op. */
6811 s_mri_endi (int ignore ATTRIBUTE_UNUSED)
6813 if (mri_control_stack == NULL
6814 || mri_control_stack->type != mri_if)
6816 as_bad (_("endi without matching if"));
6817 ignore_rest_of_line ();
6821 /* ignore_input will not return true for ENDI, so we don't need to
6822 worry about checking it again here. */
6824 if (! mri_control_stack->else_seen)
6825 colon (mri_control_stack->next);
6826 colon (mri_control_stack->bottom);
6832 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6833 ++input_line_pointer;
6836 demand_empty_rest_of_line ();
6839 /* Handle the MRI BREAK pseudo-op. */
6842 s_mri_break (int extent)
6844 struct mri_control_info *n;
6848 n = mri_control_stack;
6850 && n->type != mri_for
6851 && n->type != mri_repeat
6852 && n->type != mri_while)
6856 as_bad (_("break outside of structured loop"));
6857 ignore_rest_of_line ();
6861 buf = (char *) xmalloc (20 + strlen (n->bottom));
6862 ex[0] = TOLOWER (extent);
6864 sprintf (buf, "bra%s %s", ex, n->bottom);
6870 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6871 ++input_line_pointer;
6874 demand_empty_rest_of_line ();
6877 /* Handle the MRI NEXT pseudo-op. */
6880 s_mri_next (int extent)
6882 struct mri_control_info *n;
6886 n = mri_control_stack;
6888 && n->type != mri_for
6889 && n->type != mri_repeat
6890 && n->type != mri_while)
6894 as_bad (_("next outside of structured loop"));
6895 ignore_rest_of_line ();
6899 buf = (char *) xmalloc (20 + strlen (n->next));
6900 ex[0] = TOLOWER (extent);
6902 sprintf (buf, "bra%s %s", ex, n->next);
6908 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6909 ++input_line_pointer;
6912 demand_empty_rest_of_line ();
6915 /* Handle the MRI FOR pseudo-op. */
6918 s_mri_for (int qual)
6920 const char *varstart, *varstop;
6921 const char *initstart, *initstop;
6922 const char *endstart, *endstop;
6923 const char *bystart, *bystop;
6927 struct mri_control_info *n;
6933 FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e
6937 varstart = input_line_pointer;
6939 /* Look for the '='. */
6940 while (! is_end_of_line[(unsigned char) *input_line_pointer]
6941 && *input_line_pointer != '=')
6942 ++input_line_pointer;
6943 if (*input_line_pointer != '=')
6945 as_bad (_("missing ="));
6946 ignore_rest_of_line ();
6950 varstop = input_line_pointer;
6951 if (varstop > varstart
6952 && (varstop[-1] == ' ' || varstop[-1] == '\t'))
6955 ++input_line_pointer;
6957 initstart = input_line_pointer;
6959 /* Look for TO or DOWNTO. */
6962 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6964 if (strncasecmp (input_line_pointer, "TO", 2) == 0
6965 && ! is_part_of_name (input_line_pointer[2]))
6967 initstop = input_line_pointer;
6968 input_line_pointer += 2;
6971 if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0
6972 && ! is_part_of_name (input_line_pointer[6]))
6974 initstop = input_line_pointer;
6976 input_line_pointer += 6;
6979 ++input_line_pointer;
6981 if (initstop == NULL)
6983 as_bad (_("missing to or downto"));
6984 ignore_rest_of_line ();
6987 if (initstop > initstart
6988 && (initstop[-1] == ' ' || initstop[-1] == '\t'))
6992 endstart = input_line_pointer;
6994 /* Look for BY or DO. */
6997 while (! is_end_of_line[(unsigned char) *input_line_pointer])
6999 if (strncasecmp (input_line_pointer, "BY", 2) == 0
7000 && ! is_part_of_name (input_line_pointer[2]))
7002 endstop = input_line_pointer;
7004 input_line_pointer += 2;
7007 if (strncasecmp (input_line_pointer, "DO", 2) == 0
7008 && (input_line_pointer[2] == '.'
7009 || ! is_part_of_name (input_line_pointer[2])))
7011 endstop = input_line_pointer;
7012 input_line_pointer += 2;
7015 ++input_line_pointer;
7017 if (endstop == NULL)
7019 as_bad (_("missing do"));
7020 ignore_rest_of_line ();
7023 if (endstop > endstart
7024 && (endstop[-1] == ' ' || endstop[-1] == '\t'))
7030 bystop = bystart + 2;
7035 bystart = input_line_pointer;
7039 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7041 if (strncasecmp (input_line_pointer, "DO", 2) == 0
7042 && (input_line_pointer[2] == '.'
7043 || ! is_part_of_name (input_line_pointer[2])))
7045 bystop = input_line_pointer;
7046 input_line_pointer += 2;
7049 ++input_line_pointer;
7053 as_bad (_("missing do"));
7054 ignore_rest_of_line ();
7057 if (bystop > bystart
7058 && (bystop[-1] == ' ' || bystop[-1] == '\t'))
7062 if (*input_line_pointer != '.')
7066 extent = input_line_pointer[1];
7067 input_line_pointer += 2;
7070 /* We have fully parsed the FOR operands. Now build the loop. */
7071 n = push_mri_control (mri_for);
7073 buf = (char *) xmalloc (50 + (input_line_pointer - varstart));
7075 /* Move init,var. */
7082 *s++ = TOLOWER (qual);
7084 memcpy (s, initstart, initstop - initstart);
7085 s += initstop - initstart;
7087 memcpy (s, varstart, varstop - varstart);
7088 s += varstop - varstart;
7100 *s++ = TOLOWER (qual);
7102 memcpy (s, endstart, endstop - endstart);
7103 s += endstop - endstart;
7105 memcpy (s, varstart, varstop - varstart);
7106 s += varstop - varstart;
7111 ex[0] = TOLOWER (extent);
7114 sprintf (buf, "blt%s %s", ex, n->bottom);
7116 sprintf (buf, "bgt%s %s", ex, n->bottom);
7119 /* Put together the add or sub instruction used by ENDF. */
7127 *s++ = TOLOWER (qual);
7129 memcpy (s, bystart, bystop - bystart);
7130 s += bystop - bystart;
7132 memcpy (s, varstart, varstop - varstart);
7133 s += varstop - varstart;
7139 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7140 ++input_line_pointer;
7143 demand_empty_rest_of_line ();
7146 /* Handle the MRI ENDF pseudo-op. */
7149 s_mri_endf (int ignore ATTRIBUTE_UNUSED)
7151 if (mri_control_stack == NULL
7152 || mri_control_stack->type != mri_for)
7154 as_bad (_("endf without for"));
7155 ignore_rest_of_line ();
7159 colon (mri_control_stack->next);
7161 mri_assemble (mri_control_stack->incr);
7163 sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top);
7164 mri_assemble (mri_control_stack->incr);
7166 free (mri_control_stack->incr);
7168 colon (mri_control_stack->bottom);
7174 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7175 ++input_line_pointer;
7178 demand_empty_rest_of_line ();
7181 /* Handle the MRI REPEAT pseudo-op. */
7184 s_mri_repeat (int ignore ATTRIBUTE_UNUSED)
7186 struct mri_control_info *n;
7188 n = push_mri_control (mri_repeat);
7192 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7193 ++input_line_pointer;
7195 demand_empty_rest_of_line ();
7198 /* Handle the MRI UNTIL pseudo-op. */
7201 s_mri_until (int qual)
7205 if (mri_control_stack == NULL
7206 || mri_control_stack->type != mri_repeat)
7208 as_bad (_("until without repeat"));
7209 ignore_rest_of_line ();
7213 colon (mri_control_stack->next);
7215 for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++)
7218 parse_mri_control_expression (s, qual, (const char *) NULL,
7219 mri_control_stack->top, '\0');
7221 colon (mri_control_stack->bottom);
7223 input_line_pointer = s;
7229 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7230 ++input_line_pointer;
7233 demand_empty_rest_of_line ();
7236 /* Handle the MRI WHILE pseudo-op. */
7239 s_mri_while (int qual)
7243 struct mri_control_info *n;
7245 s = input_line_pointer;
7246 /* We only accept '*' as introduction of comments if preceded by white space
7247 or at first column of a line (I think this can't actually happen here?)
7248 This is important when assembling:
7249 while d0 <ne> 12(a0,d0*2) do
7250 while d0 <ne> #CONST*20 do. */
7251 while (! (is_end_of_line[(unsigned char) *s]
7254 && (s == input_line_pointer
7256 || *(s-1) == '\t'))))
7259 while (*s == ' ' || *s == '\t')
7261 if (s - input_line_pointer > 1
7264 if (s - input_line_pointer < 2
7265 || strncasecmp (s - 1, "DO", 2) != 0)
7267 as_bad (_("missing do"));
7268 ignore_rest_of_line ();
7272 n = push_mri_control (mri_while);
7276 parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom,
7277 s[1] == '.' ? s[2] : '\0');
7279 input_line_pointer = s + 1;
7280 if (*input_line_pointer == '.')
7281 input_line_pointer += 2;
7285 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7286 ++input_line_pointer;
7289 demand_empty_rest_of_line ();
7292 /* Handle the MRI ENDW pseudo-op. */
7295 s_mri_endw (int ignore ATTRIBUTE_UNUSED)
7299 if (mri_control_stack == NULL
7300 || mri_control_stack->type != mri_while)
7302 as_bad (_("endw without while"));
7303 ignore_rest_of_line ();
7307 buf = (char *) xmalloc (20 + strlen (mri_control_stack->next));
7308 sprintf (buf, "bra %s", mri_control_stack->next);
7312 colon (mri_control_stack->bottom);
7318 while (! is_end_of_line[(unsigned char) *input_line_pointer])
7319 ++input_line_pointer;
7322 demand_empty_rest_of_line ();
7325 /* Parse a .cpu directive. */
7328 s_m68k_cpu (int ignored ATTRIBUTE_UNUSED)
7335 as_bad (_("already assembled instructions"));
7336 ignore_rest_of_line ();
7340 name = input_line_pointer;
7341 while (*input_line_pointer && !ISSPACE(*input_line_pointer))
7342 input_line_pointer++;
7343 saved_char = *input_line_pointer;
7344 *input_line_pointer = 0;
7346 m68k_set_cpu (name, 1, 0);
7348 *input_line_pointer = saved_char;
7349 demand_empty_rest_of_line ();
7353 /* Parse a .arch directive. */
7356 s_m68k_arch (int ignored ATTRIBUTE_UNUSED)
7363 as_bad (_("already assembled instructions"));
7364 ignore_rest_of_line ();
7368 name = input_line_pointer;
7369 while (*input_line_pointer && *input_line_pointer != ','
7370 && !ISSPACE (*input_line_pointer))
7371 input_line_pointer++;
7372 saved_char = *input_line_pointer;
7373 *input_line_pointer = 0;
7375 if (m68k_set_arch (name, 1, 0))
7377 /* Scan extensions. */
7380 *input_line_pointer++ = saved_char;
7381 if (!*input_line_pointer || ISSPACE (*input_line_pointer))
7383 name = input_line_pointer;
7384 while (*input_line_pointer && *input_line_pointer != ','
7385 && !ISSPACE (*input_line_pointer))
7386 input_line_pointer++;
7387 saved_char = *input_line_pointer;
7388 *input_line_pointer = 0;
7390 while (m68k_set_extension (name, 1, 0));
7393 *input_line_pointer = saved_char;
7394 demand_empty_rest_of_line ();
7398 /* Lookup a cpu name in TABLE and return the slot found. Return NULL
7399 if none is found, the caller is responsible for emitting an error
7400 message. If ALLOW_M is non-zero, we allow an initial 'm' on the
7401 cpu name, if it begins with a '6' (possibly skipping an intervening
7402 'c'. We also allow a 'c' in the same place. if NEGATED is
7403 non-zero, we accept a leading 'no-' and *NEGATED is set to true, if
7404 the option is indeed negated. */
7406 static const struct m68k_cpu *
7407 m68k_lookup_cpu (const char *arg, const struct m68k_cpu *table,
7408 int allow_m, int *negated)
7410 /* allow negated value? */
7415 if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-')
7422 /* Remove 'm' or 'mc' prefix from 68k variants. */
7429 else if (arg[1] == 'c' && arg[2] == '6')
7433 else if (arg[0] == 'c' && arg[1] == '6')
7436 for (; table->name; table++)
7437 if (!strcmp (arg, table->name))
7439 if (table->alias < -1 || table->alias > 1)
7440 as_bad (_("`%s' is deprecated, use `%s'"),
7441 table->name, table[table->alias < 0 ? 1 : -1].name);
7447 /* Set the cpu, issuing errors if it is unrecognized. */
7450 m68k_set_cpu (char const *name, int allow_m, int silent)
7452 const struct m68k_cpu *cpu;
7454 cpu = m68k_lookup_cpu (name, m68k_cpus, allow_m, NULL);
7459 as_bad (_("cpu `%s' unrecognized"), name);
7466 /* Set the architecture, issuing errors if it is unrecognized. */
7469 m68k_set_arch (char const *name, int allow_m, int silent)
7471 const struct m68k_cpu *arch;
7473 arch = m68k_lookup_cpu (name, m68k_archs, allow_m, NULL);
7478 as_bad (_("architecture `%s' unrecognized"), name);
7481 selected_arch = arch;
7485 /* Set the architecture extension, issuing errors if it is
7486 unrecognized, or invalid */
7489 m68k_set_extension (char const *name, int allow_m, int silent)
7492 const struct m68k_cpu *ext;
7494 ext = m68k_lookup_cpu (name, m68k_extensions, allow_m, &negated);
7499 as_bad (_("extension `%s' unrecognized"), name);
7504 not_current_architecture |= (ext->control_regs
7505 ? *(unsigned *)ext->control_regs: ext->arch);
7507 current_architecture |= ext->arch;
7512 Invocation line includes a switch not recognized by the base assembler.
7516 const char *md_shortopts = "lSA:m:kQ:V";
7518 const char *md_shortopts = "lSA:m:k";
7521 struct option md_longopts[] = {
7522 #define OPTION_PIC (OPTION_MD_BASE)
7523 {"pic", no_argument, NULL, OPTION_PIC},
7524 #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1)
7525 {"register-prefix-optional", no_argument, NULL,
7526 OPTION_REGISTER_PREFIX_OPTIONAL},
7527 #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2)
7528 {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR},
7529 #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3)
7530 {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16},
7531 #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4)
7532 {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32},
7533 #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5)
7534 {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16},
7535 #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6)
7536 {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32},
7537 #define OPTION_PCREL (OPTION_MD_BASE + 7)
7538 {"pcrel", no_argument, NULL, OPTION_PCREL},
7539 {NULL, no_argument, NULL, 0}
7541 size_t md_longopts_size = sizeof (md_longopts);
7544 md_parse_option (int c, char *arg)
7548 case 'l': /* -l means keep external to 2 bit offset
7549 rather than 16 bit one. */
7550 flag_short_refs = 1;
7553 case 'S': /* -S means that jbsr's always turn into
7555 flag_long_jumps = 1;
7558 case OPTION_PCREL: /* --pcrel means never turn PC-relative
7559 branches into absolute jumps. */
7560 flag_keep_pcrel = 1;
7566 break; /* -pic, Position Independent Code. */
7568 case OPTION_REGISTER_PREFIX_OPTIONAL:
7569 flag_reg_prefix_optional = 1;
7570 reg_prefix_optional_seen = 1;
7573 /* -V: SVR4 argument to print version ID. */
7575 print_version_id ();
7578 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
7579 should be emitted or not. FIXME: Not implemented. */
7583 case OPTION_BITWISE_OR:
7588 n = (char *) xmalloc (strlen (m68k_comment_chars) + 1);
7590 for (s = m68k_comment_chars; *s != '\0'; s++)
7594 m68k_comment_chars = n;
7598 case OPTION_BASE_SIZE_DEFAULT_16:
7599 m68k_index_width_default = SIZE_WORD;
7602 case OPTION_BASE_SIZE_DEFAULT_32:
7603 m68k_index_width_default = SIZE_LONG;
7606 case OPTION_DISP_SIZE_DEFAULT_16:
7608 m68k_rel32_from_cmdline = 1;
7611 case OPTION_DISP_SIZE_DEFAULT_32:
7613 m68k_rel32_from_cmdline = 1;
7618 as_tsktsk (_ ("option `-A%s' is deprecated: use `-%s'",
7621 /* Intentional fall-through. */
7623 if (!strncmp (arg, "arch=", 5))
7624 m68k_set_arch (arg + 5, 1, 0);
7625 else if (!strncmp (arg, "cpu=", 4))
7626 m68k_set_cpu (arg + 4, 1, 0);
7627 else if (m68k_set_extension (arg, 0, 1))
7629 else if (m68k_set_arch (arg, 0, 1))
7631 else if (m68k_set_cpu (arg, 0, 1))
7644 /* Setup tables from the selected arch and/or cpu */
7647 m68k_init_arch (void)
7649 if (not_current_architecture & current_architecture)
7651 as_bad (_("architecture features both enabled and disabled"));
7652 not_current_architecture &= ~current_architecture;
7656 current_architecture |= selected_arch->arch;
7657 control_regs = selected_arch->control_regs;
7660 current_architecture |= selected_cpu->arch;
7662 current_architecture &= ~not_current_architecture;
7664 if ((current_architecture & (cfloat | m68881)) == (cfloat | m68881))
7666 /* Determine which float is really meant. */
7667 if (current_architecture & (m68k_mask & ~m68881))
7668 current_architecture ^= cfloat;
7670 current_architecture ^= m68881;
7675 control_regs = selected_cpu->control_regs;
7676 if (current_architecture & ~selected_cpu->arch)
7678 as_bad (_("selected processor does not have all features of selected architecture"));
7679 current_architecture
7680 = selected_cpu->arch & ~not_current_architecture;
7684 if ((current_architecture & m68k_mask)
7685 && (current_architecture & ~m68k_mask))
7687 as_bad (_ ("m68k and cf features both selected"));
7688 if (current_architecture & m68k_mask)
7689 current_architecture &= m68k_mask;
7691 current_architecture &= ~m68k_mask;
7694 /* Permit m68881 specification with all cpus; those that can't work
7695 with a coprocessor could be doing emulation. */
7696 if (current_architecture & m68851)
7698 if (current_architecture & m68040)
7699 as_warn (_("68040 and 68851 specified; mmu instructions may assemble incorrectly"));
7701 /* What other incompatibilities could we check for? */
7703 if (cpu_of_arch (current_architecture) < m68020
7704 || arch_coldfire_p (current_architecture))
7705 md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0;
7711 md_show_usage (FILE *stream)
7713 const char *default_cpu = TARGET_CPU;
7716 /* Get the canonical name for the default target CPU. */
7717 if (*default_cpu == 'm')
7719 for (i = 0; m68k_cpus[i].name; i++)
7721 if (strcasecmp (default_cpu, m68k_cpus[i].name) == 0)
7723 while (m68k_cpus[i].alias > 0)
7725 while (m68k_cpus[i].alias < 0)
7727 default_cpu = m68k_cpus[i].name;
7731 fprintf (stream, _("\
7732 -march=<arch> set architecture\n\
7733 -mcpu=<cpu> set cpu [default %s]\n\
7735 for (i = 0; m68k_extensions[i].name; i++)
7736 fprintf (stream, _("\
7737 -m[no-]%-16s enable/disable%s architecture extension\n\
7738 "), m68k_extensions[i].name,
7739 m68k_extensions[i].alias > 0 ? " ColdFire"
7740 : m68k_extensions[i].alias < 0 ? " m68k" : "");
7742 fprintf (stream, _("\
7743 -l use 1 word for refs to undefined symbols [default 2]\n\
7744 -pic, -k generate position independent code\n\
7745 -S turn jbsr into jsr\n\
7746 --pcrel never turn PC-relative branches into absolute jumps\n\
7747 --register-prefix-optional\n\
7748 recognize register names without prefix character\n\
7749 --bitwise-or do not treat `|' as a comment character\n\
7750 --base-size-default-16 base reg without size is 16 bits\n\
7751 --base-size-default-32 base reg without size is 32 bits (default)\n\
7752 --disp-size-default-16 displacement with unknown size is 16 bits\n\
7753 --disp-size-default-32 displacement with unknown size is 32 bits (default)\n\
7756 fprintf (stream, _("Architecture variants are: "));
7757 for (i = 0; m68k_archs[i].name; i++)
7760 fprintf (stream, " | ");
7761 fprintf (stream, "%s", m68k_archs[i].name);
7763 fprintf (stream, "\n");
7765 fprintf (stream, _("Processor variants are: "));
7766 for (i = 0; m68k_cpus[i].name; i++)
7769 fprintf (stream, " | ");
7770 fprintf (stream, "%s", m68k_cpus[i].name);
7772 fprintf (stream, _("\n"));
7777 /* TEST2: Test md_assemble() */
7778 /* Warning, this routine probably doesn't work anymore. */
7782 struct m68k_it the_ins;
7790 if (!gets (buf) || !*buf)
7792 if (buf[0] == '|' || buf[1] == '.')
7794 for (cp = buf; *cp; cp++)
7799 memset (&the_ins, '\0', sizeof (the_ins));
7800 m68k_ip (&the_ins, buf);
7803 printf (_("Error %s in %s\n"), the_ins.error, buf);
7807 printf (_("Opcode(%d.%s): "), the_ins.numo, the_ins.args);
7808 for (n = 0; n < the_ins.numo; n++)
7809 printf (" 0x%x", the_ins.opcode[n] & 0xffff);
7811 print_the_insn (&the_ins.opcode[0], stdout);
7812 (void) putchar ('\n');
7814 for (n = 0; n < strlen (the_ins.args) / 2; n++)
7816 if (the_ins.operands[n].error)
7818 printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf);
7821 printf ("mode %d, reg %d, ", the_ins.operands[n].mode,
7822 the_ins.operands[n].reg);
7823 if (the_ins.operands[n].b_const)
7824 printf ("Constant: '%.*s', ",
7825 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const,
7826 the_ins.operands[n].b_const);
7827 printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg,
7828 the_ins.operands[n].isiz, the_ins.operands[n].imul);
7829 if (the_ins.operands[n].b_iadd)
7830 printf ("Iadd: '%.*s',",
7831 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd,
7832 the_ins.operands[n].b_iadd);
7841 is_label (char *str)
7845 while (*str && *str != ' ')
7847 if (str[-1] == ':' || str[1] == '=')
7854 /* Possible states for relaxation:
7856 0 0 branch offset byte (bra, etc)
7860 1 0 indexed offsets byte a0@(32,d4:w:1) etc
7864 2 0 two-offset index word-word a0@(32,d4)@(45) etc
7871 /* We have no need to default values of symbols. */
7874 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
7879 /* Round up a section size to the appropriate boundary. */
7881 md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size)
7884 /* For a.out, force the section size to be aligned. If we don't do
7885 this, BFD will align it for us, but it will not write out the
7886 final bytes of the section. This may be a bug in BFD, but it is
7887 easier to fix it here since that is how the other a.out targets
7891 align = bfd_get_section_alignment (stdoutput, segment);
7892 size = ((size + (1 << align) - 1) & ((valueT) -1 << align));
7898 /* Exactly what point is a PC-relative offset relative TO?
7899 On the 68k, it is relative to the address of the first extension
7900 word. The difference between the addresses of the offset and the
7901 first extension word is stored in fx_pcrel_adjust. */
7903 md_pcrel_from (fixS *fixP)
7907 adjust = fixP->fx_pcrel_adjust;
7910 return fixP->fx_where + fixP->fx_frag->fr_address - adjust;
7915 m68k_elf_final_processing (void)
7919 if (arch_coldfire_fpu (current_architecture))
7920 flags |= EF_M68K_CFV4E;
7921 /* Set file-specific flags if this is a cpu32 processor. */
7922 if (cpu_of_arch (current_architecture) & cpu32)
7923 flags |= EF_M68K_CPU32;
7924 else if (cpu_of_arch (current_architecture) & fido_a)
7925 flags |= EF_M68K_FIDO;
7926 else if ((cpu_of_arch (current_architecture) & m68000up)
7927 && !(cpu_of_arch (current_architecture) & m68020up))
7928 flags |= EF_M68K_M68000;
7930 if (current_architecture & mcfisa_a)
7932 static const unsigned isa_features[][2] =
7934 {EF_M68K_CF_ISA_A_NODIV,mcfisa_a},
7935 {EF_M68K_CF_ISA_A, mcfisa_a|mcfhwdiv},
7936 {EF_M68K_CF_ISA_A_PLUS, mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp},
7937 {EF_M68K_CF_ISA_B_NOUSP,mcfisa_a|mcfisa_b|mcfhwdiv},
7938 {EF_M68K_CF_ISA_B, mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp},
7939 {EF_M68K_CF_ISA_C, mcfisa_a|mcfisa_c|mcfhwdiv|mcfusp},
7940 {EF_M68K_CF_ISA_C_NODIV,mcfisa_a|mcfisa_c|mcfusp},
7943 static const unsigned mac_features[][2] =
7945 {EF_M68K_CF_MAC, mcfmac},
7946 {EF_M68K_CF_EMAC, mcfemac},
7952 pattern = (current_architecture
7953 & (mcfisa_a|mcfisa_aa|mcfisa_b|mcfisa_c|mcfhwdiv|mcfusp));
7954 for (ix = 0; isa_features[ix][1]; ix++)
7956 if (pattern == isa_features[ix][1])
7958 flags |= isa_features[ix][0];
7962 if (!isa_features[ix][1])
7965 as_warn (_("Not a defined coldfire architecture"));
7969 if (current_architecture & cfloat)
7970 flags |= EF_M68K_CF_FLOAT | EF_M68K_CFV4E;
7972 pattern = current_architecture & (mcfmac|mcfemac);
7975 for (ix = 0; mac_features[ix][1]; ix++)
7977 if (pattern == mac_features[ix][1])
7979 flags |= mac_features[ix][0];
7983 if (!mac_features[ix][1])
7988 elf_elfheader (stdoutput)->e_flags |= flags;
7991 /* Parse @TLSLDO and return the desired relocation. */
7992 static bfd_reloc_code_real_type
7993 m68k_elf_suffix (char **str_p, expressionS *exp_p)
8002 return BFD_RELOC_UNUSED;
8004 for (ch = *str, str2 = ident;
8005 (str2 < ident + sizeof (ident) - 1
8006 && (ISALNUM (ch) || ch == '@'));
8015 if (strncmp (ident, "TLSLDO", 6) == 0
8018 /* Now check for identifier@suffix+constant. */
8019 if (*str == '-' || *str == '+')
8021 char *orig_line = input_line_pointer;
8022 expressionS new_exp;
8024 input_line_pointer = str;
8025 expression (&new_exp);
8026 if (new_exp.X_op == O_constant)
8028 exp_p->X_add_number += new_exp.X_add_number;
8029 str = input_line_pointer;
8032 if (&input_line_pointer != str_p)
8033 input_line_pointer = orig_line;
8037 return BFD_RELOC_68K_TLS_LDO32;
8040 return BFD_RELOC_UNUSED;
8043 /* Handles .long <tls_symbol>+0x8000 debug info.
8044 Clobbers input_line_pointer, checks end-of-line.
8045 Adapted from tc-ppc.c:ppc_elf_cons. */
8047 m68k_elf_cons (int nbytes /* 4=.long */)
8049 if (is_it_end_of_statement ())
8051 demand_empty_rest_of_line ();
8058 bfd_reloc_code_real_type reloc;
8061 if (exp.X_op == O_symbol
8062 && *input_line_pointer == '@'
8063 && (reloc = m68k_elf_suffix (&input_line_pointer,
8064 &exp)) != BFD_RELOC_UNUSED)
8066 reloc_howto_type *reloc_howto;
8069 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
8070 size = bfd_get_reloc_size (reloc_howto);
8074 as_bad (_("%s relocations do not fit in %d bytes\n"),
8075 reloc_howto->name, nbytes);
8082 p = frag_more (nbytes);
8084 if (target_big_endian)
8085 offset = nbytes - size;
8086 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
8091 emit_expr (&exp, (unsigned int) nbytes);
8093 while (*input_line_pointer++ == ',');
8095 /* Put terminator back into stream. */
8096 input_line_pointer--;
8097 demand_empty_rest_of_line ();
8102 tc_m68k_regname_to_dw2regnum (char *regname)
8104 unsigned int regnum;
8105 static const char *const regnames[] =
8107 "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
8108 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp",
8109 "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7",
8113 for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++)
8114 if (strcmp (regname, regnames[regnum]) == 0)
8121 tc_m68k_frame_initial_instructions (void)
8123 static int sp_regno = -1;
8126 sp_regno = tc_m68k_regname_to_dw2regnum ("sp");
8128 cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT);
8129 cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT);
8132 /* Check and emit error if broken-word handling has failed to fix up a
8133 case-table. This is called from write.c, after doing everything it
8134 knows about how to handle broken words. */
8137 tc_m68k_check_adjusted_broken_word (offsetT new_offset, struct broken_word *brokwP)
8139 if (new_offset > 32767 || new_offset < -32768)
8140 as_bad_where (brokwP->frag->fr_file, brokwP->frag->fr_line,
8141 _("Adjusted signed .word (%#lx) overflows: `switch'-statement too large."),