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Implement vsl

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CRACKbomber 2025-05-23 19:42:17 -04:00
parent 0b4c87071b
commit 5c01ec54ad
2 changed files with 21 additions and 0 deletions
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5
XenonRecomp/recompiler.cpp
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@ -2457,6 +2457,11 @@ bool Recompiler::Recompile(
println("\t_mm_store_si128((__m128i*){}.u8, _mm_or_si128(_mm_andnot_si128(_mm_load_si128((__m128i*){}.u8), _mm_load_si128((__m128i*){}.u8)), _mm_and_si128(_mm_load_si128((__m128i*){}.u8), _mm_load_si128((__m128i*){}.u8))));", v(insn.operands[0]), v(insn.operands[3]), v(insn.operands[1]), v(insn.operands[3]), v(insn.operands[2]));
break;
case PPC_INST_VSL:
println("\t_mm_store_si128((__m128i*){}.u8, _mm_vsl(_mm_load_si128((__m128i*){}.u8), _mm_load_si128((__m128i*){}.u8)));",
v(insn.operands[0]), v(insn.operands[1]), v(insn.operands[2]));
break;
case PPC_INST_VSLB:
// TODO: vectorize
for (size_t i = 0; i < 16; i++)

16
XenonUtils/ppc_context.h
View file

@ -708,4 +708,20 @@ inline __m128i _mm_vctuxs(__m128 src1)
return _mm_blendv_epi8(result, _mm_set1_epi32(-1), _mm_castps_si128(saturate_mask));
}
inline __m128i _mm_vsl(__m128i a, __m128i b)
{
// Extract shift count from last byte of b (accounting for endianness)
uint32_t shift = _mm_extract_epi8(b, 15) & 0x7;
if (shift == 0) return a;
// Shift left by bits
__m128i shifted = _mm_or_si128(
_mm_slli_epi64(a, shift),
_mm_srli_epi64(_mm_slli_si128(a, 8), 64 - shift)
);
return shifted;
}
#endif