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Xmm read/write cleanup.

This commit is contained in:
Ben Vanik 2013-10-06 11:19:16 -07:00 committed by U-noxa-pc\noxa
parent 9ebbc3535f
commit e5ca996a08
2 changed files with 47 additions and 43 deletions
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85
src/xenia/cpu/x64/x64_emitter.cc
View File

@ -1869,43 +1869,6 @@ GpVar X64Emitter::ReadMemory(
return value;
}
static __m128i __xmm_byte_swap = _mm_set_epi8( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
XmmVar X64Emitter::ReadMemoryXmm(
uint32_t cia, GpVar& addr, uint32_t alignment) {
X86Compiler& c = compiler_;
// Align memory address.
GpVar aligned_addr(c.newGpVar());
c.mov(aligned_addr, addr);
bool aligned = false;
switch (alignment) {
case 4:
aligned = true;
c.and_(aligned_addr, imm(~0xF));
break;
default:
XEASSERTALWAYS();
break;
}
// Rebase off of memory base pointer.
GpVar real_address = TouchMemoryAddress(cia, aligned_addr);
XmmVar value(c.newXmmVar());
if (aligned) {
c.movaps(value, xmmword_ptr(real_address));
} else {
c.movups(value, xmmword_ptr(real_address));
}
// Byte swap.
GpVar byte_swap_addr(c.newGpVar());
c.mov(byte_swap_addr, imm((sysint_t)&__xmm_byte_swap));
c.pshufb(value, xmmword_ptr(byte_swap_addr));
return value;
}
void X64Emitter::WriteMemory(
uint32_t cia, GpVar& addr, uint32_t size, GpVar& value,
bool release) {
@ -1951,6 +1914,49 @@ void X64Emitter::WriteMemory(
}
}
static __m128i __xmm_byte_swap = _mm_set_epi8( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
void X64Emitter::ByteSwapXmm(XmmVar& value) {
X86Compiler& c = compiler_;
// TODO(benvanik): clone value before modifying it?
GpVar byte_swap_addr(c.newGpVar());
c.mov(byte_swap_addr, imm((sysint_t)&__xmm_byte_swap));
c.pshufb(value, xmmword_ptr(byte_swap_addr));
}
XmmVar X64Emitter::ReadMemoryXmm(
uint32_t cia, GpVar& addr, uint32_t alignment) {
X86Compiler& c = compiler_;
// Align memory address.
GpVar aligned_addr(c.newGpVar());
c.mov(aligned_addr, addr);
bool aligned = false;
switch (alignment) {
case 4:
aligned = true;
c.and_(aligned_addr, imm(~0xF));
break;
default:
XEASSERTALWAYS();
break;
}
// Rebase off of memory base pointer.
GpVar real_address = TouchMemoryAddress(cia, aligned_addr);
XmmVar value(c.newXmmVar());
if (aligned) {
c.movaps(value, xmmword_ptr(real_address));
} else {
c.movups(value, xmmword_ptr(real_address));
}
// Byte swap.
ByteSwapXmm(value);
return value;
}
void X64Emitter::WriteMemoryXmm(
uint32_t cia, GpVar& addr, uint32_t alignment, XmmVar& value) {
X86Compiler& c = compiler_;
@ -1973,10 +1979,7 @@ void X64Emitter::WriteMemoryXmm(
GpVar real_address = TouchMemoryAddress(cia, aligned_addr);
// Byte swap.
// TODO(benvanik): clone value before modifying it?
GpVar byte_swap_addr(c.newGpVar());
c.mov(byte_swap_addr, imm((sysint_t)&__xmm_byte_swap));
c.pshufb(value, xmmword_ptr(byte_swap_addr));
ByteSwapXmm(value);
if (aligned) {
c.movaps(xmmword_ptr(real_address), value);

5
src/xenia/cpu/x64/x64_emitter.h
View File

@ -105,11 +105,12 @@ public:
AsmJit::GpVar TouchMemoryAddress(uint32_t cia, AsmJit::GpVar& addr);
AsmJit::GpVar ReadMemory(
uint32_t cia, AsmJit::GpVar& addr, uint32_t size, bool acquire = false);
AsmJit::XmmVar ReadMemoryXmm(
uint32_t cia, AsmJit::GpVar& addr, uint32_t alignment);
void WriteMemory(
uint32_t cia, AsmJit::GpVar& addr, uint32_t size, AsmJit::GpVar& value,
bool release = false);
void ByteSwapXmm(AsmJit::XmmVar& value);
AsmJit::XmmVar ReadMemoryXmm(
uint32_t cia, AsmJit::GpVar& addr, uint32_t alignment);
void WriteMemoryXmm(
uint32_t cia, AsmJit::GpVar& addr, uint32_t alignment,
AsmJit::XmmVar& value);