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Adding fallback for pre-MOVBE-supporting processors.

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This commit is contained in:
Ben Vanik
2015-06-16 20:05:55 -07:00
parent 75206149ab
commit c34db170f5
7 changed files with 62 additions and 14 deletions
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39
src/xenia/cpu/backend/x64/x64_sequences.cc
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@@ -1524,7 +1524,12 @@ EMITTER(LOAD_I16, MATCH(I<OPCODE_LOAD, I16<>, I64<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
e.movbe(i.dest, e.word[addr]);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(i.dest, e.word[addr]);
} else {
e.mov(i.dest, e.word[addr]);
e.ror(i.dest, 8);
}
} else {
e.mov(i.dest, e.word[addr]);
}
@@ -1539,7 +1544,12 @@ EMITTER(LOAD_I32, MATCH(I<OPCODE_LOAD, I32<>, I64<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
e.movbe(i.dest, e.dword[addr]);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(i.dest, e.dword[addr]);
} else {
e.mov(i.dest, e.dword[addr]);
e.bswap(i.dest);
}
} else {
e.mov(i.dest, e.dword[addr]);
}
@@ -1554,7 +1564,12 @@ EMITTER(LOAD_I64, MATCH(I<OPCODE_LOAD, I64<>, I64<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
e.movbe(i.dest, e.qword[addr]);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(i.dest, e.qword[addr]);
} else {
e.mov(i.dest, e.qword[addr]);
e.bswap(i.dest);
}
} else {
e.mov(i.dest, e.qword[addr]);
}
@@ -1645,7 +1660,11 @@ EMITTER(STORE_I16, MATCH(I<OPCODE_STORE, VoidOp, I64<>, I16<>>)) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
assert_false(i.src2.is_constant);
e.movbe(e.word[addr], i.src2);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(e.word[addr], i.src2);
} else {
assert_always("not implemented");
}
} else {
if (i.src2.is_constant) {
e.mov(e.word[addr], i.src2.constant());
@@ -1666,7 +1685,11 @@ EMITTER(STORE_I32, MATCH(I<OPCODE_STORE, VoidOp, I64<>, I32<>>)) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
assert_false(i.src2.is_constant);
e.movbe(e.dword[addr], i.src2);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(e.dword[addr], i.src2);
} else {
assert_always("not implemented");
}
} else {
if (i.src2.is_constant) {
e.mov(e.dword[addr], i.src2.constant());
@@ -1687,7 +1710,11 @@ EMITTER(STORE_I64, MATCH(I<OPCODE_STORE, VoidOp, I64<>, I64<>>)) {
auto addr = ComputeMemoryAddress(e, i.src1);
if (i.instr->flags & LoadStoreFlags::LOAD_STORE_BYTE_SWAP) {
assert_false(i.src2.is_constant);
e.movbe(e.qword[addr], i.src2);
if (e.IsFeatureEnabled(kX64EmitMovbe)) {
e.movbe(e.qword[addr], i.src2);
} else {
assert_always("not implemented");
}
} else {
if (i.src2.is_constant) {
e.MovMem64(addr, i.src2.constant());