1 files changed, 2 insertions, 2 deletions
diff --git a/nasm.h b/nasm.h
index 4dd8dd5..f2672a4 100644
--- a/nasm.h
+++ b/nasm.h
@@ -475,8 +475,8 @@ enum {
 #define EIPREG    	0x00801004L   /* EIP */
 #define FPUREG    	0x01001000L   /* floating point stack registers */
 #define FPU0      	0x01011000L   /* FPU stack register zero */
-#define MMXREG    	0x02009008L   /* MMX registers */
-#define XMMREG    	0x04009001L   /* XMM Katmai reg */
+#define MMXREG    	0x04009001L   /* MMX registers */
+#define XMMREG    	0x04009002L   /* XMM Katmai reg */
 #define REG_CDT   	0x00101004L   /* CRn, DRn and TRn */
 #define REG_CREG	0x00111004L   /* CRn */
 #define REG_DREG	0x00121004L   /* DRn */