diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index f05c135..27f83b5 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -237,6 +237,18 @@
                  1, &ret, 2, args);
 }
 
+static inline void tcg_gen_helper_1_3(void *func, TCGv ret,
+                                      TCGv arg1, TCGv arg2, TCGv arg3)
+{
+    TCGv args[3];
+    args[0] = arg1;
+    args[1] = arg2;
+    args[2] = arg3;
+    tcg_gen_call(&tcg_ctx,
+                 tcg_const_ptr((tcg_target_long)func), TCG_HELPER_CALL_FLAGS,
+                 1, &ret, 3, args);
+}
+
 static inline void tcg_gen_helper_1_4(void *func, TCGv ret,
                                       TCGv arg1, TCGv arg2, TCGv arg3,
                                       TCGv arg4)
@@ -1416,3 +1428,10 @@
 #define tcg_gen_ext_tl_i64 tcg_gen_ext_i32_i64
 #define tcg_const_tl tcg_const_i32
 #endif
+
+#if TCG_TARGET_REG_BITS == 32
+#define tcg_gen_addi_ptr tcg_gen_addi_i32
+#else /* TCG_TARGET_REG_BITS == 32 */
+#define tcg_gen_addi_ptr tcg_gen_addi_i64
+#endif /* TCG_TARGET_REG_BITS != 32 */
+