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Fix op2 references that had not yet been converted; introduce opy

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Fix op2 references not yet converted to accessing op2; add an opy
pointer similar to the opx pointer instead of multiple references.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2008-10-23 23:07:53 -07:00
parent 941fcbb3ab
commit 33d5fc074f
1 changed files with 22 additions and 29 deletions
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51
assemble.c
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@ -1773,20 +1773,20 @@ static void gencode(int32_t segment, int64_t offset, int bits,
uint8_t *p;
int32_t s;
enum out_type type;
struct operand *opy = &ins->oprs[op2];
if (c <= 0177) {
/* pick rfield from operand b */
rflags = regflag(&ins->oprs[op1]);
rfield = nasm_regvals[ins->oprs[op1].basereg];
/* pick rfield from operand b (opx) */
rflags = regflag(opx);
rfield = nasm_regvals[opx->basereg];
} else {
/* rfield is constant */
rflags = 0;
rfield = c & 7;
}
if (!process_ea
(&ins->oprs[op2], &ea_data, bits,
ins->addr_size, rfield, rflags)) {
if (!process_ea(opy, &ea_data, bits, ins->addr_size,
rfield, rflags)) {
errfunc(ERR_NONFATAL, "invalid effective address");
}
@ -1798,10 +1798,9 @@ static void gencode(int32_t segment, int64_t offset, int bits,
/* DREX suffixes come between the SIB and the displacement */
if (ins->rex & REX_D) {
*p++ =
(ins->drexdst << 4) |
(ins->rex & REX_OC ? 0x08 : 0) |
(ins->rex & (REX_R|REX_X|REX_B));
*p++ = (ins->drexdst << 4) |
(ins->rex & REX_OC ? 0x08 : 0) |
(ins->rex & (REX_R|REX_X|REX_B));
ins->rex = 0;
}
@ -1819,13 +1818,12 @@ static void gencode(int32_t segment, int64_t offset, int bits,
case 0:
break;
case 1:
if (ins->oprs[(c >> 3) & 7].segment != NO_SEG) {
data = ins->oprs[(c >> 3) & 7].offset;
if (opy->segment != NO_SEG) {
data = opy->offset;
out(offset, segment, &data, OUT_ADDRESS, 1,
ins->oprs[(c >> 3) & 7].segment,
ins->oprs[(c >> 3) & 7].wrt);
opy->segment, opy->wrt);
} else {
*bytes = ins->oprs[(c >> 3) & 7].offset;
*bytes = opy->offset;
out(offset, segment, bytes, OUT_RAWDATA, 1,
NO_SEG, NO_SEG);
}
@ -1834,27 +1832,22 @@ static void gencode(int32_t segment, int64_t offset, int bits,
case 8:
case 2:
case 4:
data = ins->oprs[(c >> 3) & 7].offset;
warn_overflow(ea_data.bytes, &ins->oprs[(c >> 3) & 7]);
data = opy->offset;
warn_overflow(ea_data.bytes, opy);
s += ea_data.bytes;
if (ea_data.rip) {
if (ins->oprs[(c >> 3) & 7].segment == segment) {
if (opy->segment == segment) {
data -= insn_end;
out(offset, segment, &data,
OUT_ADDRESS, ea_data.bytes,
NO_SEG, NO_SEG);
out(offset, segment, &data, OUT_ADDRESS,
ea_data.bytes, NO_SEG, NO_SEG);
} else {
out(offset, segment, &data,
OUT_REL4ADR, insn_end - offset,
ins->oprs[(c >> 3) & 7].segment,
ins->oprs[(c >> 3) & 7].wrt);
out(offset, segment, &data, OUT_REL4ADR,
insn_end - offset, opy->segment, opy->wrt);
}
} else {
type = OUT_ADDRESS;
out(offset, segment, &data,
OUT_ADDRESS, ea_data.bytes,
ins->oprs[(c >> 3) & 7].segment,
ins->oprs[(c >> 3) & 7].wrt);
out(offset, segment, &data, OUT_ADDRESS,
ea_data.bytes, opy->segment, opy->wrt);
}
break;
}