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Fixing alignment of xmm load/store.

This commit is contained in:
Ben Vanik 2013-10-03 20:18:56 -07:00
parent 6d46b51ed4
commit bdb5b0eae2
1 changed files with 12 additions and 2 deletions
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14
src/xenia/cpu/x64/x64_emitter.cc
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@ -1886,7 +1886,7 @@ XmmVar X64Emitter::ReadMemoryXmm(
}
// Rebase off of memory base pointer.
GpVar real_address = TouchMemoryAddress(cia, addr);
GpVar real_address = TouchMemoryAddress(cia, aligned_addr);
XmmVar value(c.newXmmVar());
c.movaps(value, xmmword_ptr(real_address));
@ -1955,9 +1955,19 @@ void X64Emitter::WriteMemoryXmm(
X86Compiler& c = compiler_;
// Align memory address.
GpVar aligned_addr(c.newGpVar());
c.mov(aligned_addr, addr);
switch (alignment) {
case 4:
c.and_(aligned_addr, imm(~0xF));
break;
default:
XEASSERTALWAYS();
break;
}
// Rebase off of memory base pointer.
GpVar real_address = TouchMemoryAddress(cia, addr);
GpVar real_address = TouchMemoryAddress(cia, aligned_addr);
// Byte swap.
// TODO(benvanik): clone value before modifying it?