From a5d63829753be07e845a5546c69720259a5e8bde Mon Sep 17 00:00:00 2001
From: DeaTh-G <55578911+DeaTh-G@users.noreply.github.com>
Date: Sun, 3 Nov 2024 21:27:33 +0100
Subject: [PATCH] add remaining altivec instructions

---
 XenonRecomp/recompiler.cpp | 18 ++++++++++++++++++
 XenonUtils/ppc_context.h   | 13 +++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/XenonRecomp/recompiler.cpp b/XenonRecomp/recompiler.cpp
index c4ab869..801d80f 100644
--- a/XenonRecomp/recompiler.cpp
+++ b/XenonRecomp/recompiler.cpp
@@ -1986,6 +1986,16 @@ bool Recompiler::Recompile(
             println("_mm_load_ps({}.f32)));", v(insn.operands[1]));
         break;
 
+    case PPC_INST_VCTUXS:
+    case PPC_INST_VCFPUXWS128:
+        printSetFlushMode(true);
+        print("\t_mm_store_si128((__m128i*){}.u32, _mm_vctuxs(", v(insn.operands[0]));
+        if (insn.operands[2] != 0)
+            println("_mm_mul_ps(_mm_load_ps({}.f32), _mm_set1_ps({}))));", v(insn.operands[1]), 1u << insn.operands[2]);
+        else
+            println("_mm_load_ps({}.f32)));", v(insn.operands[1]));
+        break;
+
     case PPC_INST_VCFSX:
     case PPC_INST_VCSXWFP128:
     {
@@ -2325,6 +2335,14 @@ bool Recompiler::Recompile(
         break;
     }
 
+    case PPC_INST_VRLH:
+        for (size_t i = 0; i < 8; i++)
+        {
+            println("\t{0}.u16[{1}] = ({2}.u16[{1}] << ({3}.u16[{1}] & 0xF)) | ({2}.u16[{1}] >> (16 - ({3}.u16[{1}] & 0xF)));", vTemp(), i, v(insn.operands[1]), v(insn.operands[2]));
+        }
+        println("{} = {};", v(insn.operands[0]), vTemp());
+        break;
+
     case PPC_INST_VRSQRTEFP:
     case PPC_INST_VRSQRTEFP128:
         // TODO: see if we can use rsqrt safely
diff --git a/XenonUtils/ppc_context.h b/XenonUtils/ppc_context.h
index c1091d1..d7ddbd5 100644
--- a/XenonUtils/ppc_context.h
+++ b/XenonUtils/ppc_context.h
@@ -645,6 +645,19 @@ inline __m128i _mm_vctsxs(__m128 src1)
     return _mm_andnot_si128(_mm_castps_si128(xmm2), _mm_castps_si128(dest));
 }
 
+inline __m128i _mm_vctuxs(__m128 src1)
+{
+    __m128 xmm0 = _mm_max_ps(src1, _mm_set1_epi32(0));
+    __m128 xmm1 = _mm_cmpge_ps(xmm0, _mm_set1_ps((float)0x80000000));
+    __m128 xmm2 = _mm_sub_ps(xmm0, _mm_set1_ps((float)0x80000000));
+    xmm0 = _mm_blendv_ps(xmm0, xmm2, xmm1);
+    __m128i dest = _mm_cvttps_epi32(xmm0);
+    xmm0 = _mm_cmpeq_epi32(dest, _mm_set1_epi32(INT_MIN));
+    xmm1 = _mm_and_si128(xmm1, _mm_set1_epi32(INT_MIN));
+    dest = _mm_add_epi32(dest, xmm1);
+    return _mm_or_si128(dest, xmm0);
+}
+
 inline __m128i _mm_vsr(__m128i a, __m128i b)
 {
     b = _mm_srli_epi64(_mm_slli_epi64(b, 61), 61);