[BUG] Fixed REX.W prefix in short form of arithmetic instruction (REX…

….W was deleted by opcode = ...)
dyvniy · Jun 15, 2015 · ec8eb0d · ec8eb0d
1 parent 3d3d5f5
commit ec8eb0d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/asmjit/x86/x86assembler.cpp b/src/asmjit/x86/x86assembler.cpp
@@ -1192,7 +1192,8 @@ static Error ASMJIT_CDECL X86Assembler_emit(Assembler* self_, uint32_t code, con
 
         // Alternate Form - AL, AX, EAX, RAX.
         if (rmReg == 0 && (o0->getSize() == 1 || imLen != 1)) {
-          opCode = ((opReg << 3) | (0x04 + (o0->getSize() != 1)));
+          opCode &= kX86InstOpCode_PP_66 | kX86InstOpCode_W;
+          opCode |= ((opReg << 3) | (0x04 + (o0->getSize() != 1)));
           imLen = IntUtil::iMin<uint32_t>(o0->getSize(), 4);
           goto _EmitX86Op;
         }