Diamond75/Panda3DS
1
0
Fork 0
mirror of https://github.com/wheremyfoodat/Panda3DS.git synced 2025-04-09 23:55:40 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

[Shader JIT] Fix CMP instruction when cmpX == cmpY

Browse source
This commit is contained in:
wheremyfoodat 2023-06-10 23:18:33 +03:00
parent 4655ae0842
commit b5dbc40587
1 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
src/core/PICA/dynapica/shader_rec_emitter_x64.cpp
View file

@ -557,10 +557,11 @@ void ShaderEmitter::recCMP(const PICAShader& shader, u32 instruction) {
// Cmp x and y are the same compare function, we can use a single cmp instruction
if (cmpX == cmpY) {
cmpps(lhs_x, rhs_x, compareFuncX);
movd(eax, lhs_x);
test(eax, eax);
movq(rax, lhs_x); // Move both comparison results to rax
test(eax, eax); // Check bottom 32 bits first
setne(byte[statePointer + cmpRegXOffset]); // set cmp.x
setne(byte[statePointer + cmpRegXOffset]);
shr(rax, 32); // Check top 32 bits (shr will set the zero flag properly)
setne(byte[statePointer + cmpRegYOffset]);
} else {
movaps(scratch1, lhs_x); // Copy the left hand operands to temp registers