diff --git a/target/mips/translate.c b/target/mips/translate.c
index 4184d91b7c..ab982cf6d6 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -16593,6 +16593,17 @@ enum {
  *
  */
 
+
+/* extraction utilities */
+
+#define NANOMIPS_EXTRACT_RD(op) ((op >> 7) & 0x7)
+#define NANOMIPS_EXTRACT_RS(op) ((op >> 4) & 0x7)
+#define NANOMIPS_EXTRACT_RS2(op) uMIPS_RS(op)
+#define NANOMIPS_EXTRACT_RS1(op) ((op >> 1) & 0x7)
+#define NANOMIPS_EXTRACT_RD5(op) ((op >> 5) & 0x1f)
+#define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f)
+
+
 static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx)
 {
     return 2;