1 /* ----------------------------------------------------------------------- *
3 * Copyright 1996-2013 The NASM Authors - All Rights Reserved
4 * See the file AUTHORS included with the NASM distribution for
5 * the specific copyright holders.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
19 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
20 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 * ----------------------------------------------------------------------- */
35 * parser.c source line parser for the Netwide Assembler
56 extern int in_abs_seg; /* ABSOLUTE segment flag */
57 extern int32_t abs_seg; /* ABSOLUTE segment */
58 extern int32_t abs_offset; /* ABSOLUTE segment offset */
60 static int is_comma_next(void);
63 static struct tokenval tokval;
64 static struct location *location; /* Pointer to current line's segment,offset */
66 void parser_global_info(struct location * locp)
71 static int prefix_slot(int prefix)
104 nasm_error(ERR_PANIC, "Invalid value %d passed to prefix_slot()", prefix);
109 static void process_size_override(insn *result, int operand)
111 if (tasm_compatible_mode) {
112 switch ((int)tokval.t_integer) {
113 /* For TASM compatibility a size override inside the
114 * brackets changes the size of the operand, not the
115 * address type of the operand as it does in standard
116 * NASM syntax. Hence:
118 * mov eax,[DWORD val]
120 * is valid syntax in TASM compatibility mode. Note that
121 * you lose the ability to override the default address
122 * type for the instruction, but we never use anything
123 * but 32-bit flat model addressing in our code.
126 result->oprs[operand].type |= BITS8;
129 result->oprs[operand].type |= BITS16;
133 result->oprs[operand].type |= BITS32;
136 result->oprs[operand].type |= BITS64;
139 result->oprs[operand].type |= BITS80;
142 result->oprs[operand].type |= BITS128;
145 nasm_error(ERR_NONFATAL,
146 "invalid operand size specification");
150 /* Standard NASM compatible syntax */
151 switch ((int)tokval.t_integer) {
153 result->oprs[operand].eaflags |= EAF_TIMESTWO;
156 result->oprs[operand].eaflags |= EAF_REL;
159 result->oprs[operand].eaflags |= EAF_ABS;
162 result->oprs[operand].disp_size = 8;
163 result->oprs[operand].eaflags |= EAF_BYTEOFFS;
168 if (result->prefixes[PPS_ASIZE] &&
169 result->prefixes[PPS_ASIZE] != tokval.t_integer)
170 nasm_error(ERR_NONFATAL,
171 "conflicting address size specifications");
173 result->prefixes[PPS_ASIZE] = tokval.t_integer;
176 result->oprs[operand].disp_size = 16;
177 result->oprs[operand].eaflags |= EAF_WORDOFFS;
181 result->oprs[operand].disp_size = 32;
182 result->oprs[operand].eaflags |= EAF_WORDOFFS;
185 result->oprs[operand].disp_size = 64;
186 result->oprs[operand].eaflags |= EAF_WORDOFFS;
189 nasm_error(ERR_NONFATAL, "invalid size specification in"
190 " effective address");
197 * when two or more decorators follow a register operand,
198 * consecutive decorators are parsed here.
199 * opmask and zeroing decorators can be placed in any order.
200 * e.g. zmm1 {k2}{z} or zmm2 {z,k3}
201 * decorator(s) are placed at the end of an operand.
203 static bool parse_braces(decoflags_t *decoflags)
206 bool recover = false;
210 if (i == TOKEN_OPMASK) {
211 if (*decoflags & OPMASK_MASK) {
212 nasm_error(ERR_NONFATAL, "opmask k%lu is already set",
213 *decoflags & OPMASK_MASK);
214 *decoflags &= ~OPMASK_MASK;
216 *decoflags |= VAL_OPMASK(nasm_regvals[tokval.t_integer]);
217 } else if (i == TOKEN_DECORATOR) {
218 switch (tokval.t_integer) {
221 * according to AVX512 spec, only zeroing/merging decorator
222 * is supported with opmask
224 *decoflags |= GEN_Z(0);
227 nasm_error(ERR_NONFATAL, "{%s} is not an expected decorator",
231 } else if (i == ',' || i == TOKEN_EOS){
234 nasm_error(ERR_NONFATAL, "only a series of valid decorators"
239 i = stdscan(NULL, &tokval);
245 insn *parse_line(int pass, char *buffer, insn *result, ldfunc ldef)
247 bool insn_is_label = false;
248 struct eval_hints hints;
256 result->forw_ref = false;
260 i = stdscan(NULL, &tokval);
262 result->label = NULL; /* Assume no label */
263 result->eops = NULL; /* must do this, whatever happens */
264 result->operands = 0; /* must initialize this */
265 result->evex_rm = 0; /* Ensure EVEX rounding mode is reset */
266 result->evex_brerop = -1; /* Reset EVEX broadcasting/ER op position */
268 /* Ignore blank lines */
269 if (i == TOKEN_EOS) {
270 result->opcode = I_none;
277 (i != TOKEN_REG || !IS_SREG(tokval.t_integer))) {
278 nasm_error(ERR_NONFATAL,
279 "label or instruction expected at start of line");
280 result->opcode = I_none;
284 if (i == TOKEN_ID || (insn_is_label && i == TOKEN_INSN)) {
285 /* there's a label here */
287 result->label = tokval.t_charptr;
288 i = stdscan(NULL, &tokval);
289 if (i == ':') { /* skip over the optional colon */
290 i = stdscan(NULL, &tokval);
292 nasm_error(ERR_WARNING | ERR_WARN_OL | ERR_PASS1,
293 "label alone on a line without a colon might be in error");
295 if (i != TOKEN_INSN || tokval.t_integer != I_EQU) {
297 * FIXME: location->segment could be NO_SEG, in which case
298 * it is possible we should be passing 'abs_seg'. Look into this.
299 * Work out whether that is *really* what we should be doing.
300 * Generally fix things. I think this is right as it is, but
301 * am still not certain.
303 ldef(result->label, in_abs_seg ? abs_seg : location->segment,
304 location->offset, NULL, true, false);
308 /* Just a label here */
309 if (i == TOKEN_EOS) {
310 result->opcode = I_none;
314 nasm_build_assert(P_none != 0);
315 memset(result->prefixes, P_none, sizeof(result->prefixes));
318 while (i == TOKEN_PREFIX ||
319 (i == TOKEN_REG && IS_SREG(tokval.t_integer))) {
323 * Handle special case: the TIMES prefix.
325 if (i == TOKEN_PREFIX && tokval.t_integer == P_TIMES) {
328 i = stdscan(NULL, &tokval);
329 value = evaluate(stdscan, NULL, &tokval, NULL, pass0, nasm_error, NULL);
331 if (!value) { /* but, error in evaluator */
332 result->opcode = I_none; /* unrecoverable parse error: */
333 return result; /* ignore this instruction */
335 if (!is_simple(value)) {
336 nasm_error(ERR_NONFATAL,
337 "non-constant argument supplied to TIMES");
340 result->times = value->value;
341 if (value->value < 0 && pass0 == 2) {
342 nasm_error(ERR_NONFATAL, "TIMES value %"PRId64" is negative",
348 int slot = prefix_slot(tokval.t_integer);
349 if (result->prefixes[slot]) {
350 if (result->prefixes[slot] == tokval.t_integer)
351 nasm_error(ERR_WARNING | ERR_PASS1,
352 "instruction has redundant prefixes");
354 nasm_error(ERR_NONFATAL,
355 "instruction has conflicting prefixes");
357 result->prefixes[slot] = tokval.t_integer;
358 i = stdscan(NULL, &tokval);
362 if (i != TOKEN_INSN) {
366 for (j = 0; j < MAXPREFIX; j++) {
367 if ((pfx = result->prefixes[j]) != P_none)
371 if (i == 0 && pfx != P_none) {
373 * Instruction prefixes are present, but no actual
374 * instruction. This is allowed: at this point we
375 * invent a notional instruction of RESB 0.
377 result->opcode = I_RESB;
378 result->operands = 1;
379 result->oprs[0].type = IMMEDIATE;
380 result->oprs[0].offset = 0L;
381 result->oprs[0].segment = result->oprs[0].wrt = NO_SEG;
384 nasm_error(ERR_NONFATAL, "parser: instruction expected");
385 result->opcode = I_none;
390 result->opcode = tokval.t_integer;
391 result->condition = tokval.t_inttwo;
394 * INCBIN cannot be satisfied with incorrectly
395 * evaluated operands, since the correct values _must_ be known
396 * on the first pass. Hence, even in pass one, we set the
397 * `critical' flag on calling evaluate(), so that it will bomb
398 * out on undefined symbols.
400 if (result->opcode == I_INCBIN) {
401 critical = (pass0 < 2 ? 1 : 2);
404 critical = (pass == 2 ? 2 : 0);
406 if (result->opcode == I_DB || result->opcode == I_DW ||
407 result->opcode == I_DD || result->opcode == I_DQ ||
408 result->opcode == I_DT || result->opcode == I_DO ||
409 result->opcode == I_DY || result->opcode == I_DZ ||
410 result->opcode == I_INCBIN) {
411 extop *eop, **tail = &result->eops, **fixptr;
415 result->eops_float = false;
418 * Begin to read the DB/DW/DD/DQ/DT/DO/DY/DZ/INCBIN operands.
421 i = stdscan(NULL, &tokval);
424 else if (first && i == ':') {
425 insn_is_label = true;
430 eop = *tail = nasm_malloc(sizeof(extop));
433 eop->type = EOT_NOTHING;
438 * is_comma_next() here is to distinguish this from
439 * a string used as part of an expression...
441 if (i == TOKEN_STR && is_comma_next()) {
442 eop->type = EOT_DB_STRING;
443 eop->stringval = tokval.t_charptr;
444 eop->stringlen = tokval.t_inttwo;
445 i = stdscan(NULL, &tokval); /* eat the comma */
446 } else if (i == TOKEN_STRFUNC) {
448 const char *funcname = tokval.t_charptr;
449 enum strfunc func = tokval.t_integer;
450 i = stdscan(NULL, &tokval);
453 i = stdscan(NULL, &tokval);
455 if (i != TOKEN_STR) {
456 nasm_error(ERR_NONFATAL,
457 "%s must be followed by a string constant",
459 eop->type = EOT_NOTHING;
461 eop->type = EOT_DB_STRING_FREE;
463 string_transform(tokval.t_charptr, tokval.t_inttwo,
464 &eop->stringval, func);
465 if (eop->stringlen == (size_t)-1) {
466 nasm_error(ERR_NONFATAL, "invalid string for transform");
467 eop->type = EOT_NOTHING;
470 if (parens && i && i != ')') {
471 i = stdscan(NULL, &tokval);
473 nasm_error(ERR_NONFATAL, "unterminated %s function",
478 i = stdscan(NULL, &tokval);
479 } else if (i == '-' || i == '+') {
480 char *save = stdscan_get();
482 sign = (i == '-') ? -1 : 1;
483 i = stdscan(NULL, &tokval);
484 if (i != TOKEN_FLOAT) {
486 i = tokval.t_type = token;
491 } else if (i == TOKEN_FLOAT) {
493 eop->type = EOT_DB_STRING;
494 result->eops_float = true;
496 eop->stringlen = idata_bytes(result->opcode);
497 if (eop->stringlen > 16) {
498 nasm_error(ERR_NONFATAL, "floating-point constant"
499 " encountered in DY or DZ instruction");
501 } else if (eop->stringlen < 1) {
502 nasm_error(ERR_NONFATAL, "floating-point constant"
503 " encountered in unknown instruction");
505 * fix suggested by Pedro Gimeno... original line was:
506 * eop->type = EOT_NOTHING;
511 eop = nasm_realloc(eop, sizeof(extop) + eop->stringlen);
514 eop->stringval = (char *)eop + sizeof(extop);
515 if (!eop->stringlen ||
516 !float_const(tokval.t_charptr, sign,
517 (uint8_t *)eop->stringval,
518 eop->stringlen, nasm_error))
519 eop->type = EOT_NOTHING;
520 i = stdscan(NULL, &tokval); /* eat the comma */
522 /* anything else, assume it is an expression */
526 value = evaluate(stdscan, NULL, &tokval, NULL,
527 critical, nasm_error, NULL);
529 if (!value) { /* error in evaluator */
530 result->opcode = I_none; /* unrecoverable parse error: */
531 return result; /* ignore this instruction */
533 if (is_unknown(value)) {
534 eop->type = EOT_DB_NUMBER;
535 eop->offset = 0; /* doesn't matter what we put */
536 eop->segment = eop->wrt = NO_SEG; /* likewise */
537 } else if (is_reloc(value)) {
538 eop->type = EOT_DB_NUMBER;
539 eop->offset = reloc_value(value);
540 eop->segment = reloc_seg(value);
541 eop->wrt = reloc_wrt(value);
543 nasm_error(ERR_NONFATAL,
544 "operand %d: expression is not simple"
545 " or relocatable", oper_num);
550 * We're about to call stdscan(), which will eat the
551 * comma that we're currently sitting on between
552 * arguments. However, we'd better check first that it
555 if (i == TOKEN_EOS) /* also could be EOL */
558 nasm_error(ERR_NONFATAL, "comma expected after operand %d",
560 result->opcode = I_none;/* unrecoverable parse error: */
561 return result; /* ignore this instruction */
565 if (result->opcode == I_INCBIN) {
567 * Correct syntax for INCBIN is that there should be
568 * one string operand, followed by one or two numeric
571 if (!result->eops || result->eops->type != EOT_DB_STRING)
572 nasm_error(ERR_NONFATAL, "`incbin' expects a file name");
573 else if (result->eops->next &&
574 result->eops->next->type != EOT_DB_NUMBER)
575 nasm_error(ERR_NONFATAL, "`incbin': second parameter is"
577 else if (result->eops->next && result->eops->next->next &&
578 result->eops->next->next->type != EOT_DB_NUMBER)
579 nasm_error(ERR_NONFATAL, "`incbin': third parameter is"
581 else if (result->eops->next && result->eops->next->next &&
582 result->eops->next->next->next)
583 nasm_error(ERR_NONFATAL,
584 "`incbin': more than three parameters");
588 * If we reach here, one of the above errors happened.
589 * Throw the instruction away.
591 result->opcode = I_none;
593 } else /* DB ... */ if (oper_num == 0)
594 nasm_error(ERR_WARNING | ERR_PASS1,
595 "no operand for data declaration");
597 result->operands = oper_num;
603 * Now we begin to parse the operands. There may be up to four
604 * of these, separated by commas, and terminated by a zero token.
607 for (operand = 0; operand < MAX_OPERANDS; operand++) {
608 expr *value; /* used most of the time */
609 int mref; /* is this going to be a memory ref? */
610 int bracket; /* is it a [] mref, or a & mref? */
612 decoflags_t brace_flags = 0; /* flags for decorators in braces */
614 result->oprs[operand].disp_size = 0; /* have to zero this whatever */
615 result->oprs[operand].eaflags = 0; /* and this */
616 result->oprs[operand].opflags = 0;
617 result->oprs[operand].decoflags = 0;
619 i = stdscan(NULL, &tokval);
621 break; /* end of operands: get out of here */
622 else if (first && i == ':') {
623 insn_is_label = true;
627 result->oprs[operand].type = 0; /* so far, no override */
628 while (i == TOKEN_SPECIAL) { /* size specifiers */
629 switch ((int)tokval.t_integer) {
631 if (!setsize) /* we want to use only the first */
632 result->oprs[operand].type |= BITS8;
637 result->oprs[operand].type |= BITS16;
643 result->oprs[operand].type |= BITS32;
648 result->oprs[operand].type |= BITS64;
653 result->oprs[operand].type |= BITS80;
658 result->oprs[operand].type |= BITS128;
663 result->oprs[operand].type |= BITS256;
668 result->oprs[operand].type |= BITS512;
672 result->oprs[operand].type |= TO;
675 result->oprs[operand].type |= STRICT;
678 result->oprs[operand].type |= FAR;
681 result->oprs[operand].type |= NEAR;
684 result->oprs[operand].type |= SHORT;
687 nasm_error(ERR_NONFATAL, "invalid operand size specification");
689 i = stdscan(NULL, &tokval);
692 if (i == '[' || i == '&') { /* memory reference */
694 bracket = (i == '[');
695 i = stdscan(NULL, &tokval); /* then skip the colon */
696 while (i == TOKEN_SPECIAL || i == TOKEN_PREFIX) {
697 process_size_override(result, operand);
698 i = stdscan(NULL, &tokval);
700 } else { /* immediate operand, or register */
702 bracket = false; /* placate optimisers */
705 if ((result->oprs[operand].type & FAR) && !mref &&
706 result->opcode != I_JMP && result->opcode != I_CALL) {
707 nasm_error(ERR_NONFATAL, "invalid use of FAR operand specifier");
710 value = evaluate(stdscan, NULL, &tokval,
711 &result->oprs[operand].opflags,
712 critical, nasm_error, &hints);
714 if (result->oprs[operand].opflags & OPFLAG_FORWARD) {
715 result->forw_ref = true;
717 if (!value) { /* nasm_error in evaluator */
718 result->opcode = I_none; /* unrecoverable parse error: */
719 return result; /* ignore this instruction */
721 if (i == ':' && mref) { /* it was seg:offset */
723 * Process the segment override.
725 if (value[1].type != 0 ||
727 !IS_SREG(value->type))
728 nasm_error(ERR_NONFATAL, "invalid segment override");
729 else if (result->prefixes[PPS_SEG])
730 nasm_error(ERR_NONFATAL,
731 "instruction has conflicting segment overrides");
733 result->prefixes[PPS_SEG] = value->type;
734 if (IS_FSGS(value->type))
735 result->oprs[operand].eaflags |= EAF_FSGS;
738 i = stdscan(NULL, &tokval); /* then skip the colon */
739 while (i == TOKEN_SPECIAL || i == TOKEN_PREFIX) {
740 process_size_override(result, operand);
741 i = stdscan(NULL, &tokval);
743 value = evaluate(stdscan, NULL, &tokval,
744 &result->oprs[operand].opflags,
745 critical, nasm_error, &hints);
747 if (result->oprs[operand].opflags & OPFLAG_FORWARD) {
748 result->forw_ref = true;
750 /* and get the offset */
751 if (!value) { /* but, error in evaluator */
752 result->opcode = I_none; /* unrecoverable parse error: */
753 return result; /* ignore this instruction */
758 if (mref && bracket) { /* find ] at the end */
760 nasm_error(ERR_NONFATAL, "parser: expecting ]");
762 } else { /* we got the required ] */
763 i = stdscan(NULL, &tokval);
764 if ((i == TOKEN_DECORATOR) || (i == TOKEN_OPMASK)) {
766 * according to AVX512 spec, broacast or opmask decorator
767 * is expected for memory reference operands
769 if (tokval.t_flag & TFLAG_BRDCAST) {
770 brace_flags |= GEN_BRDCAST(0);
771 i = stdscan(NULL, &tokval);
772 } else if (i == TOKEN_OPMASK) {
773 brace_flags |= VAL_OPMASK(nasm_regvals[tokval.t_integer]);
774 i = stdscan(NULL, &tokval);
776 nasm_error(ERR_NONFATAL, "broadcast or opmask "
777 "decorator expected inside braces");
782 if (i != 0 && i != ',') {
783 nasm_error(ERR_NONFATAL, "comma or end of line expected");
787 } else { /* immediate operand */
788 if (i != 0 && i != ',' && i != ':' &&
789 i != TOKEN_DECORATOR && i != TOKEN_OPMASK) {
790 nasm_error(ERR_NONFATAL, "comma, colon, decorator or end of "
791 "line expected after operand");
793 } else if (i == ':') {
794 result->oprs[operand].type |= COLON;
795 } else if (i == TOKEN_DECORATOR || i == TOKEN_OPMASK) {
796 /* parse opmask (and zeroing) after an operand */
797 recover = parse_braces(&brace_flags);
801 do { /* error recovery */
802 i = stdscan(NULL, &tokval);
803 } while (i != 0 && i != ',');
807 * now convert the exprs returned from evaluate()
808 * into operand descriptions...
811 if (mref) { /* it's a memory reference */
813 int b, i, s; /* basereg, indexreg, scale */
814 int64_t o; /* offset */
816 b = i = -1, o = s = 0;
817 result->oprs[operand].hintbase = hints.base;
818 result->oprs[operand].hinttype = hints.type;
820 if (e->type && e->type <= EXPR_REG_END) { /* this bit's a register */
821 bool is_gpr = is_class(REG_GPR,nasm_reg_flags[e->type]);
823 if (is_gpr && e->value == 1)
824 b = e->type; /* It can be basereg */
825 else /* No, it has to be indexreg */
826 i = e->type, s = e->value;
829 if (e->type && e->type <= EXPR_REG_END) { /* it's a 2nd register */
830 bool is_gpr = is_class(REG_GPR,nasm_reg_flags[e->type]);
832 if (b != -1) /* If the first was the base, ... */
833 i = e->type, s = e->value; /* second has to be indexreg */
835 else if (!is_gpr || e->value != 1) {
836 /* If both want to be index */
837 nasm_error(ERR_NONFATAL,
838 "invalid effective address: two index registers");
839 result->opcode = I_none;
845 if (e->type != 0) { /* is there an offset? */
846 if (e->type <= EXPR_REG_END) { /* in fact, is there an error? */
847 nasm_error(ERR_NONFATAL,
848 "beroset-p-603-invalid effective address");
849 result->opcode = I_none;
852 if (e->type == EXPR_UNKNOWN) {
853 result->oprs[operand].opflags |= OPFLAG_UNKNOWN;
854 o = 0; /* doesn't matter what */
855 result->oprs[operand].wrt = NO_SEG; /* nor this */
856 result->oprs[operand].segment = NO_SEG; /* or this */
858 e++; /* go to the end of the line */
860 if (e->type == EXPR_SIMPLE) {
864 if (e->type == EXPR_WRT) {
865 result->oprs[operand].wrt = e->value;
868 result->oprs[operand].wrt = NO_SEG;
870 * Look for a segment base type.
872 if (e->type && e->type < EXPR_SEGBASE) {
873 nasm_error(ERR_NONFATAL,
874 "beroset-p-630-invalid effective address");
875 result->opcode = I_none;
878 while (e->type && e->value == 0)
880 if (e->type && e->value != 1) {
881 nasm_error(ERR_NONFATAL,
882 "beroset-p-637-invalid effective address");
883 result->opcode = I_none;
887 result->oprs[operand].segment =
888 e->type - EXPR_SEGBASE;
891 result->oprs[operand].segment = NO_SEG;
892 while (e->type && e->value == 0)
895 nasm_error(ERR_NONFATAL,
896 "beroset-p-650-invalid effective address");
897 result->opcode = I_none;
904 result->oprs[operand].wrt = NO_SEG;
905 result->oprs[operand].segment = NO_SEG;
908 if (e->type != 0) { /* there'd better be nothing left! */
909 nasm_error(ERR_NONFATAL,
910 "beroset-p-663-invalid effective address");
911 result->opcode = I_none;
915 /* It is memory, but it can match any r/m operand */
916 result->oprs[operand].type |= MEMORY_ANY;
918 if (b == -1 && (i == -1 || s == 0)) {
919 int is_rel = globalbits == 64 &&
920 !(result->oprs[operand].eaflags & EAF_ABS) &&
922 !(result->oprs[operand].eaflags & EAF_FSGS)) ||
923 (result->oprs[operand].eaflags & EAF_REL));
925 result->oprs[operand].type |= is_rel ? IP_REL : MEM_OFFS;
929 opflags_t iclass = nasm_reg_flags[i];
931 if (is_class(XMMREG,iclass))
932 result->oprs[operand].type |= XMEM;
933 else if (is_class(YMMREG,iclass))
934 result->oprs[operand].type |= YMEM;
935 else if (is_class(ZMMREG,iclass))
936 result->oprs[operand].type |= ZMEM;
939 result->oprs[operand].basereg = b;
940 result->oprs[operand].indexreg = i;
941 result->oprs[operand].scale = s;
942 result->oprs[operand].offset = o;
943 result->oprs[operand].decoflags |= brace_flags;
944 } else { /* it's not a memory reference */
945 if (is_just_unknown(value)) { /* it's immediate but unknown */
946 result->oprs[operand].type |= IMMEDIATE;
947 result->oprs[operand].opflags |= OPFLAG_UNKNOWN;
948 result->oprs[operand].offset = 0; /* don't care */
949 result->oprs[operand].segment = NO_SEG; /* don't care again */
950 result->oprs[operand].wrt = NO_SEG; /* still don't care */
952 if(optimizing >= 0 && !(result->oprs[operand].type & STRICT)) {
954 result->oprs[operand].type |=
955 UNITY | SBYTEWORD | SBYTEDWORD | UDWORD | SDWORD;
957 } else if (is_reloc(value)) { /* it's immediate */
958 result->oprs[operand].type |= IMMEDIATE;
959 result->oprs[operand].offset = reloc_value(value);
960 result->oprs[operand].segment = reloc_seg(value);
961 result->oprs[operand].wrt = reloc_wrt(value);
963 if (is_simple(value)) {
964 uint64_t n = reloc_value(value);
966 result->oprs[operand].type |= UNITY;
967 if (optimizing >= 0 &&
968 !(result->oprs[operand].type & STRICT)) {
969 if ((uint32_t) (n + 128) <= 255)
970 result->oprs[operand].type |= SBYTEDWORD;
971 if ((uint16_t) (n + 128) <= 255)
972 result->oprs[operand].type |= SBYTEWORD;
974 result->oprs[operand].type |= UDWORD;
975 if (n + 0x80000000 <= 0xFFFFFFFF)
976 result->oprs[operand].type |= SDWORD;
979 } else if(value->type == EXPR_RDSAE) {
981 * it's not an operand but a rounding or SAE decorator.
982 * put the decorator information in the (opflag_t) type field
983 * of previous operand.
986 switch (value->value) {
992 result->oprs[operand].decoflags |=
993 (value->value == BRC_SAE ? SAE : ER);
994 result->evex_rm = value->value;
997 nasm_error(ERR_NONFATAL, "invalid decorator");
1000 } else { /* it's a register */
1003 if (value->type >= EXPR_SIMPLE || value->value != 1) {
1004 nasm_error(ERR_NONFATAL, "invalid operand type");
1005 result->opcode = I_none;
1010 * check that its only 1 register, not an expression...
1012 for (i = 1; value[i].type; i++)
1013 if (value[i].value) {
1014 nasm_error(ERR_NONFATAL, "invalid operand type");
1015 result->opcode = I_none;
1019 /* clear overrides, except TO which applies to FPU regs */
1020 if (result->oprs[operand].type & ~TO) {
1022 * we want to produce a warning iff the specified size
1023 * is different from the register size
1025 rs = result->oprs[operand].type & SIZE_MASK;
1029 result->oprs[operand].type &= TO;
1030 result->oprs[operand].type |= REGISTER;
1031 result->oprs[operand].type |= nasm_reg_flags[value->type];
1032 result->oprs[operand].decoflags |= brace_flags;
1033 result->oprs[operand].basereg = value->type;
1035 if (rs && (result->oprs[operand].type & SIZE_MASK) != rs)
1036 nasm_error(ERR_WARNING | ERR_PASS1,
1037 "register size specification ignored");
1041 /* remember the position of operand having broadcasting/ER mode */
1042 if (result->oprs[operand].decoflags & (BRDCAST_MASK | ER | SAE))
1043 result->evex_brerop = operand;
1046 result->operands = operand; /* set operand count */
1048 /* clear remaining operands */
1049 while (operand < MAX_OPERANDS)
1050 result->oprs[operand++].type = 0;
1053 * Transform RESW, RESD, RESQ, REST, RESO, RESY, RESZ into RESB.
1055 switch (result->opcode) {
1057 result->opcode = I_RESB;
1058 result->oprs[0].offset *= 2;
1061 result->opcode = I_RESB;
1062 result->oprs[0].offset *= 4;
1065 result->opcode = I_RESB;
1066 result->oprs[0].offset *= 8;
1069 result->opcode = I_RESB;
1070 result->oprs[0].offset *= 10;
1073 result->opcode = I_RESB;
1074 result->oprs[0].offset *= 16;
1077 result->opcode = I_RESB;
1078 result->oprs[0].offset *= 32;
1081 result->opcode = I_RESB;
1082 result->oprs[0].offset *= 64;
1091 static int is_comma_next(void)
1098 i = stdscan(NULL, &tv);
1101 return (i == ',' || i == ';' || !i);
1104 void cleanup_insn(insn * i)
1108 while ((e = i->eops)) {
1110 if (e->type == EOT_DB_STRING_FREE)
1111 nasm_free(e->stringval);