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feat: add SSE2 support and fix SSE4.1 paths for PADDSW and PSUBSW instructions (#141)

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* feat: add sses2 support for PADDSW and PSUBSW instructions

* Fixed SSE4.1 PADDSW/PSUBSW implementations
This commit is contained in:
Jeffrey Shulkin
2026-07-03 23:02:00 -04:00
committed by GitHub
parent db3d44fbde
commit 3a2e0d69fd
2 changed files with 56 additions and 7 deletions
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ps2xRecomp/src/lib/code_generator.cpp
+2 -7
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@@ -2057,15 +2057,10 @@ namespace ps2recomp
return fmt::format("SET_GPR_VEC(ctx, {}, PS2_PSUBB(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})));", rd, rs, rt);
case MMI0_PCGTB:
return fmt::format("SET_GPR_VEC(ctx, {}, PS2_PCGTB(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})));", rd, rs, rt);
// thouse 2 require SSE4.1 now TODO implement on SSE2
case MMI0_PADDSW:
return fmt::format("SET_GPR_VEC(ctx, {}, _mm_min_epi32(_mm_max_epi32(_mm_add_epi32(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})), "
"_mm_set1_epi32(INT32_MIN)), _mm_set1_epi32(INT32_MAX)));",
rd, rs, rt);
return fmt::format("SET_GPR_VEC(ctx, {}, PS2_PADDSW(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})));", rd, rs, rt);
case MMI0_PSUBSW:
return fmt::format("SET_GPR_VEC(ctx, {}, _mm_min_epi32(_mm_max_epi32(_mm_sub_epi32(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})), "
"_mm_set1_epi32(INT32_MIN)), _mm_set1_epi32(INT32_MAX)));",
rd, rs, rt);
return fmt::format("SET_GPR_VEC(ctx, {}, PS2_PSUBSW(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})));", rd, rs, rt);
case MMI0_PEXTLW:
return fmt::format("SET_GPR_VEC(ctx, {}, PS2_PEXTLW(GPR_VEC(ctx, {}), GPR_VEC(ctx, {})));", rd, rs, rt);
case MMI0_PPACW: