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implement orCR and compareRC

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This commit is contained in:
Joel Dice 2008-04-29 17:16:53 -06:00
parent 59f92b6208
commit 7640590153
1 changed files with 63 additions and 5 deletions
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68
src/x86.cpp
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@ -471,11 +471,16 @@ pushC(Context* c, unsigned size, Assembler::Constant* a)
c->client->releaseTemporary(tmp.low);
}
} else {
assert(c, BytesPerWord == 4);
c->code.append(0x68);
appendImmediateTask(c, a->value, c->code.length());
c->code.appendAddress(static_cast<uintptr_t>(0));
if (BytesPerWord == 4) {
c->code.append(0x68);
appendImmediateTask(c, a->value, c->code.length());
c->code.appendAddress(static_cast<uintptr_t>(0));
} else {
Assembler::Register tmp(c->client->acquireTemporary());
moveCR(c, size, a, &tmp);
pushR(c, size, &tmp);
c->client->releaseTemporary(tmp.low);
}
}
}
}
@ -1474,6 +1479,45 @@ orRR(Context* c, unsigned size, Assembler::Register* a,
}
}
void
orCR(Context* c, unsigned size, Assembler::Constant* a,
Assembler::Register* b)
{
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);
orCR(c, 4, &al, b);
orCR(c, 4, &ah, &bh);
} else {
if (isInt32(v)) {
rex(c);
if (isInt8(v)) {
c->code.append(0x83);
c->code.append(0xc8 | b->low);
c->code.append(v);
} else {
c->code.append(0x81);
c->code.append(0xc8 | b->low);
c->code.append4(v);
}
} else {
Assembler::Register tmp(c->client->acquireTemporary());
moveCR(c, size, a, &tmp);
orRR(c, size, &tmp, b);
c->client->releaseTemporary(tmp.low);
}
}
}
}
void
xorRR(Context* c, unsigned size, Assembler::Register* a,
Assembler::Register* b)
@ -1866,6 +1910,18 @@ compareMM(Context* c, unsigned size UNUSED, Assembler::Memory* a,
c->client->releaseTemporary(tmp.low);
}
void
compareRC(Context* c, unsigned size UNUSED, Assembler::Register* a,
Assembler::Constant* b)
{
assert(c, BytesPerWord == 8 or size == 4); // todo
Assembler::Register tmp(c->client->acquireTemporary());
moveCR(c, size, b, &tmp);
compareRR(c, size, a, &tmp);
c->client->releaseTemporary(tmp.low);
}
void
populateTables()
{
@ -1939,6 +1995,7 @@ populateTables()
BinaryOperations[INDEX2(And, Constant, Memory)] = CAST2(andCM);
BinaryOperations[INDEX2(Or, Register, Register)] = CAST2(orRR);
BinaryOperations[INDEX2(Or, Constant, Register)] = CAST2(orCR);
BinaryOperations[INDEX2(Xor, Register, Register)] = CAST2(xorRR);
BinaryOperations[INDEX2(Xor, Constant, Register)] = CAST2(xorCR);
@ -1960,6 +2017,7 @@ populateTables()
BinaryOperations[INDEX2(Subtract, Register, Register)] = CAST2(subtractRR);
BinaryOperations[INDEX2(Compare, Constant, Register)] = CAST2(compareCR);
BinaryOperations[INDEX2(Compare, Register, Constant)] = CAST2(compareRC);
BinaryOperations[INDEX2(Compare, Register, Register)] = CAST2(compareRR);
BinaryOperations[INDEX2(Compare, Register, Memory)] = CAST2(compareRM);
BinaryOperations[INDEX2(Compare, Memory, Register)] = CAST2(compareMR);