Fixing SHR_V128.

2015-06-09 17:42:09 -07:00
parent 114409ea2f
commit f0c47e036b
3 changed files with 3 additions and 1 deletions
--- a/src/xenia/cpu/backend/x64/x64_sequences.cc
+++ b/src/xenia/cpu/backend/x64/x64_sequences.cc
@@ -4568,11 +4568,11 @@ EMITTER(SHR_V128, MATCH(I<OPCODE_SHR, V128<>, V128<>, I8<>>)) {
    uint8_t shamt = src2 & 0x7;
    alignas(16) vec128_t value;
    _mm_store_si128(reinterpret_cast<__m128i*>(&value), src1);
-    value.u8[0 ^ 0x3] = value.u8[0 ^ 0x3] >> shamt;
    for (int i = 15; i > 0; --i) {
      value.u8[i ^ 0x3] = (value.u8[i ^ 0x3] >> shamt) |
                          (value.u8[(i - 1) ^ 0x3] << (8 - shamt));
    }
+    value.u8[0 ^ 0x3] = value.u8[0 ^ 0x3] >> shamt;
    return _mm_load_si128(reinterpret_cast<__m128i*>(&value));
  }
 };