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implement compareAM

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This commit is contained in:
Joel Dice 2008-07-31 07:53:43 -06:00
parent 0bd29069f4
commit 6ee2b0280e
1 changed files with 13 additions and 0 deletions
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13
src/x86.cpp
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@ -1694,6 +1694,18 @@ compareRM(Context* c, unsigned size, Assembler::Register* a,
encode(c, 0x39, a->low, b, true);
}
void
compareAM(Context* c, unsigned size, Assembler::Address* a,
Assembler::Memory* b)
{
assert(c, BytesPerWord == 8 or size == 4);
Assembler::Register tmp(c->client->acquireTemporary());
moveAR(c, size, a, &tmp);
compareRM(c, size, &tmp, b);
c->client->releaseTemporary(tmp.low);
}
void
compareMR(Context* c, unsigned size, Assembler::Memory* a,
Assembler::Register* b)
@ -1984,6 +1996,7 @@ populateTables()
BinaryOperations[INDEX2(Compare, Register, Constant)] = CAST2(compareRC);
BinaryOperations[INDEX2(Compare, Register, Register)] = CAST2(compareRR);
BinaryOperations[INDEX2(Compare, Address, Register)] = CAST2(compareAR);
BinaryOperations[INDEX2(Compare, Address, Memory)] = CAST2(compareAM);
BinaryOperations[INDEX2(Compare, Register, Memory)] = CAST2(compareRM);
BinaryOperations[INDEX2(Compare, Memory, Register)] = CAST2(compareMR);
BinaryOperations[INDEX2(Compare, Constant, Memory)] = CAST2(compareCM);