suyu/dynarmic
27
1
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity

emit_x64_vector: Fix vector upper output of EmitVectorSignedSaturatedNarrowToSigned

Browse source
This commit is contained in:
Merry 2023-01-20 16:19:46 +00:00
parent e26a9769dc
commit 43e8d0d7fc
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/dynarmic/backend/x64/emit_x64_vector.cpp
View file

@ -4245,10 +4245,11 @@ static void EmitVectorSignedSaturatedNarrowToSigned(size_t original_esize, Block
const Xbyak::Xmm sign = ctx.reg_alloc.ScratchXmm(); const Xbyak::Xmm sign = ctx.reg_alloc.ScratchXmm();
code.movdqa(dest, src); code.movdqa(dest, src);
code.pxor(xmm0, xmm0);
switch (original_esize) { switch (original_esize) {
case 16: case 16:
code.packsswb(dest, dest); code.packsswb(dest, xmm0);
code.movdqa(sign, src); code.movdqa(sign, src);
code.psraw(sign, 15); code.psraw(sign, 15);
code.packsswb(sign, sign); code.packsswb(sign, sign);
@ -4256,7 +4257,7 @@ static void EmitVectorSignedSaturatedNarrowToSigned(size_t original_esize, Block
code.punpcklbw(reconstructed, sign); code.punpcklbw(reconstructed, sign);
break; break;
case 32: case 32:
code.packssdw(dest, dest); code.packssdw(dest, xmm0);
code.movdqa(reconstructed, dest); code.movdqa(reconstructed, dest);
code.movdqa(sign, dest); code.movdqa(sign, dest);
code.psraw(sign, 15); code.psraw(sign, 15);