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enable 64-bit various operations on 32-bit systems

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This commit is contained in:
Joel Dice 2008-04-29 10:56:29 -06:00
parent 9dafe37ff3
commit 4652b7aea0
1 changed files with 93 additions and 54 deletions
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61
src/x86.cpp
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@ -1042,13 +1042,23 @@ moveZRR(Context* c, unsigned size, Assembler::Register* a,
}
void
addCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
addCR(Context* c, unsigned size, Assembler::Constant* a,
Assembler::Register* b)
{
assert(c, BytesPerWord == 8 or size == 4); // todo
int64_t v = a->value->value();
if (v) {
if (BytesPerWord == 4 and size == 8) {
ResolvedPromise high((v >> 32) & 0xFFFFFFFF);
Assembler::Constant ah(&high);
ResolvedPromise low(v & 0xFFFFFFFF);
Assembler::Constant al(&low);
Assembler::Register bh(b->high);
addCR(c, 4, &al, b);
addCarryCR(c, 4, &ah, &bh);
} else {
rex(c);
if (isInt8(v)) {
c->code.append(0x83);
@ -1063,6 +1073,7 @@ addCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
}
}
}
}
void
subtractBorrowCR(Context* c, unsigned size, Assembler::Constant* a,
@ -1340,13 +1351,23 @@ andRR(Context* c, unsigned size UNUSED, Assembler::Register* a,
}
void
andCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
andCR(Context* c, unsigned size, Assembler::Constant* a,
Assembler::Register* b)
{
assert(c, BytesPerWord == 8 or size == 4); // todo
int64_t v = a->value->value();
if (BytesPerWord == 4 and size == 8) {
ResolvedPromise high((v >> 32) & 0xFFFFFFFF);
Assembler::Constant ah(&high);
ResolvedPromise low(v & 0xFFFFFFFF);
Assembler::Constant al(&low);
Assembler::Register bh(b->high);
andCR(c, 4, &al, b);
andCR(c, 4, &ah, &bh);
} else {
if (isInt32(v)) {
rex(c);
if (isInt8(v)) {
@ -1365,6 +1386,7 @@ andCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
c->client->releaseTemporary(tmp.low);
}
}
}
void
andCM(Context* c, unsigned size UNUSED, Assembler::Constant* a,
@ -1396,24 +1418,40 @@ orRR(Context* c, unsigned size UNUSED, Assembler::Register* a,
}
void
xorRR(Context* c, unsigned size UNUSED, Assembler::Register* a,
xorRR(Context* c, unsigned size, Assembler::Register* a,
Assembler::Register* b)
{
assert(c, BytesPerWord == 8 or size == 4); // todo
if (BytesPerWord == 4 and size == 8) {
Assembler::Register ah(a->high);
Assembler::Register bh(b->high);
xorRR(c, 4, a, b);
xorRR(c, 4, &ah, &bh);
} else {
rex(c);
c->code.append(0x31);
c->code.append(0xc0 | (a->low << 3) | b->low);
}
}
void
xorCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
xorCR(Context* c, unsigned size, Assembler::Constant* a,
Assembler::Register* b)
{
assert(c, BytesPerWord == 8 or size == 4); // todo
int64_t v = a->value->value();
if (v) {
if (BytesPerWord == 4 and size == 8) {
ResolvedPromise high((v >> 32) & 0xFFFFFFFF);
Assembler::Constant ah(&high);
ResolvedPromise low(v & 0xFFFFFFFF);
Assembler::Constant al(&low);
Assembler::Register bh(b->high);
xorCR(c, 4, &al, b);
xorCR(c, 4, &ah, &bh);
} else {
if (isInt32(v)) {
rex(c);
if (isInt8(v)) {
@ -1433,6 +1471,7 @@ xorCR(Context* c, unsigned size UNUSED, Assembler::Constant* a,
}
}
}
}
void
shift(Context* c, int type, Assembler::Register* a, Assembler::Register* b) {