diff --git a/src/x86.cpp b/src/x86.cpp
index 104a9d06c3..15ad45af06 100644
--- a/src/x86.cpp
+++ b/src/x86.cpp
@@ -2391,14 +2391,14 @@ float2IntRR(Context* c, unsigned aSize, Assembler::Register* a,
             unsigned bSize, Assembler::Register* b)
 {
   assert(c, not floatReg(b));
-  floatRegOp(c, aSize, a, bSize, b, 0x2d);
+  floatRegOp(c, aSize, a, bSize, b, 0x2c);
 }
 
 void
 float2IntMR(Context* c, unsigned aSize, Assembler::Memory* a,
             unsigned bSize, Assembler::Register* b)
 {
-  floatMemOp(c, aSize, a, bSize, b, 0x2d);
+  floatMemOp(c, aSize, a, bSize, b, 0x2c);
 }
 
 void
diff --git a/test/Floats.java b/test/Floats.java
index 1620e6a499..33c30145fd 100644
--- a/test/Floats.java
+++ b/test/Floats.java
@@ -61,5 +61,9 @@ public class Floats {
     expect(Math.round(0.5d) == 1);
     expect(Math.round(1.0d) == 1);
     expect(Math.round(1.9d) == 2);
+
+    float b = 1.0f;
+    int blue = (int)(b * 255 + 0.5);
+    expect(blue == 255);
   }
 }