diff --git a/src/xenia/base/vec128.h b/src/xenia/base/vec128.h
index 139227cc53..49743f8bba 100644
--- a/src/xenia/base/vec128.h
+++ b/src/xenia/base/vec128.h
@@ -91,6 +91,7 @@ typedef struct alignas(16) vec128_s {
       uint32_t uw;
     };
     float f32[4];
+    double f64[2];
     int8_t i8[16];
     uint8_t u8[16];
     int16_t i16[8];
diff --git a/src/xenia/cpu/hir/value.cc b/src/xenia/cpu/hir/value.cc
index 0c6f62f55a..a96920861e 100644
--- a/src/xenia/cpu/hir/value.cc
+++ b/src/xenia/cpu/hir/value.cc
@@ -1,11 +1,11 @@
 /**
- ******************************************************************************
- * Xenia : Xbox 360 Emulator Research Project                                 *
- ******************************************************************************
- * Copyright 2013 Ben Vanik. All rights reserved.                             *
- * Released under the BSD license - see LICENSE in the root for more details. *
- ******************************************************************************
- */
+******************************************************************************
+* Xenia : Xbox 360 Emulator Research Project                                 *
+******************************************************************************
+* Copyright 2013 Ben Vanik. All rights reserved.                             *
+* Released under the BSD license - see LICENSE in the root for more details. *
+******************************************************************************
+*/
 
 #include "xenia/cpu/hir/value.h"
 
@@ -1007,22 +1007,73 @@ void Value::VectorSub(Value* other, TypeName type, bool is_unsigned,
                       bool saturate) {
   assert_true(this->type == VEC128_TYPE && other->type == VEC128_TYPE);
   switch (type) {
+    case FLOAT32_TYPE:
+      if (saturate)
+        assert_always();
+      else {
+        constant.v128.x -= other->constant.v128.x;
+        constant.v128.y -= other->constant.v128.y;
+        constant.v128.z -= other->constant.v128.z;
+        constant.v128.w -= other->constant.v128.w;
+      }
+      break;
     case INT32_TYPE:
-      for (int i = 0; i < 4; i++) {
-        if (is_unsigned) {
-          if (saturate) {
-            assert_always();
-          } else {
+      if (saturate)
+        assert_always();
+      else {
+        for (int i = 0; i < 4; i++) {
+          if (is_unsigned)
             constant.v128.u32[i] -= other->constant.v128.u32[i];
-          }
-        } else {
-          if (saturate) {
-            assert_always();
-          } else {
+          else
             constant.v128.i32[i] -= other->constant.v128.i32[i];
-          }
         }
       }
+      break;
+    case FLOAT64_TYPE:
+      if (saturate)
+        assert_always();
+      else {
+        constant.v128.f64[0] -= other->constant.v128.f64[0];
+        constant.v128.f64[1] -= other->constant.v128.f64[1];
+      }
+      break;
+    case INT8_TYPE:
+      if (saturate)
+        assert_always();
+      else {
+        for (int i = 0; i < 16; i++) {
+          if (is_unsigned)
+            constant.v128.u8[i] -= other->constant.v128.u8[i];
+          else
+            constant.v128.i8[i] -= other->constant.v128.i8[i];
+        }
+      }
+      break;
+    case INT16_TYPE:
+      if (saturate)
+        assert_always();
+      else {
+        for (int i = 0; i < 8; i++) {
+          if (is_unsigned)
+            constant.v128.u16[i] -= other->constant.v128.u16[i];
+          else
+            constant.v128.i16[i] -= other->constant.v128.i16[i];
+        }
+      }
+      break;
+    case INT64_TYPE:
+      if (saturate)
+        assert_always();
+      else {
+        if (is_unsigned) {
+          constant.v128.u64[0] -= other->constant.v128.u64[0];
+          constant.v128.u64[1] -= other->constant.v128.u64[1];
+        } else {
+          constant.v128.i64[0] -= other->constant.v128.i64[0];
+          constant.v128.i64[1] -= other->constant.v128.i64[1];
+        }
+      }
+      break;
     default:
       assert_unhandled_case(type);
       break;