diff --git a/tcg/tcg.h b/tcg/tcg.h
index 376d6af..b218abe 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -210,6 +210,11 @@ static inline TCGCond tcg_invert_cond(TCGCond c)
     return (TCGCond)(c ^ 1);
 }
 
+static inline TCGCond tcg_unsigned_cond(TCGCond c)
+{
+    return (c >= TCG_COND_LT && c <= TCG_COND_GT ? c + 4 : c);
+}
+
 #define TEMP_VAL_DEAD  0
 #define TEMP_VAL_REG   1
 #define TEMP_VAL_MEM   2