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drcbex64: some micro-optimizations (nw)

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This commit is contained in:
Ville Linde 2016-05-09 02:35:34 +03:00
parent e274bc02d2
commit a51b58c0bd
1 changed files with 16 additions and 0 deletions
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16
src/devices/cpu/drcbex64.cpp
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@ -5193,6 +5193,10 @@ void drcbe_x64::op_or(x86code *&dst, const instruction &inst)
if (dstp.is_memory() && dstp == src1p)
emit_or_m32_p32(dst, MABS(dstp.memory()), src2p, inst); // or [dstp],src2p
// dstp == src2p in memory
else if (dstp.is_memory() && dstp == src2p)
emit_or_m32_p32(dst, MABS(dstp.memory()), src1p, inst); // or [dstp],src1p
// general case
else
{
@ -5209,6 +5213,10 @@ void drcbe_x64::op_or(x86code *&dst, const instruction &inst)
if (dstp.is_memory() && dstp == src1p)
emit_or_m64_p64(dst, MABS(dstp.memory()), src2p, inst); // or [dstp],src2p
// dstp == src2p in memory
else if (dstp.is_memory() && dstp == src2p)
emit_or_m64_p64(dst, MABS(dstp.memory()), src1p, inst); // or [dstp],src1p
// general case
else
{
@ -5247,6 +5255,10 @@ void drcbe_x64::op_xor(x86code *&dst, const instruction &inst)
if (dstp.is_memory() && dstp == src1p)
emit_xor_m32_p32(dst, MABS(dstp.memory()), src2p, inst); // xor [dstp],src2p
// dstp == src2p in memory
else if (dstp.is_memory() && dstp == src2p)
emit_xor_m32_p32(dst, MABS(dstp.memory()), src1p, inst); // xor [dstp],src1p
// general case
else
{
@ -5263,6 +5275,10 @@ void drcbe_x64::op_xor(x86code *&dst, const instruction &inst)
if (dstp.is_memory() && dstp == src1p)
emit_xor_m64_p64(dst, MABS(dstp.memory()), src2p, inst); // xor [dstp],src2p
// dstp == src2p in memory
else if (dstp.is_memory() && dstp == src2p)
emit_xor_m64_p64(dst, MABS(dstp.memory()), src1p, inst); // xor [dstp],src1p
// general case
else
{