Suyu/dynarmic
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/dynarmic.git synced 2026-01-05 22:18:16 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

emit_x64_packed: PackedAbsDiffSumS8: Fix case when bits above the lower 32 bits are not zero

Browse source
This commit is contained in:
MerryMage 2020-06-12 15:24:09 +01:00
parent 6cf5c78bfa
commit e953f67201
2 changed files with 53 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

14
src/backend/x64/emit_x64_packed.cpp
View file

@ -655,7 +655,19 @@ void EmitX64::EmitPackedSaturatedSubS16(EmitContext& ctx, IR::Inst* inst) {
}
void EmitX64::EmitPackedAbsDiffSumS8(EmitContext& ctx, IR::Inst* inst) {
EmitPackedOperation(code, ctx, inst, &Xbyak::CodeGenerator::psadbw);
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm xmm_a = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm xmm_b = ctx.reg_alloc.UseScratchXmm(args[1]);
const Xbyak::Xmm tmp = ctx.reg_alloc.ScratchXmm();
// TODO: Optimize with zero-extension detection
code.movaps(tmp, code.MConst(xword, 0xFFFFFFFF));
code.pand(xmm_a, tmp);
code.pand(xmm_b, tmp);
code.psadbw(xmm_a, xmm_b);
ctx.reg_alloc.DefineValue(inst, xmm_a);
}
void EmitX64::EmitPackedSelect(EmitContext& ctx, IR::Inst* inst) {