diff --git a/ps2xRuntime/include/ps2_runtime_macros.h b/ps2xRuntime/include/ps2_runtime_macros.h
index f7b3316..0f19c9f 100644
--- a/ps2xRuntime/include/ps2_runtime_macros.h
+++ b/ps2xRuntime/include/ps2_runtime_macros.h
@@ -758,6 +758,17 @@ static inline void Ps2SetGprLow64(R5900Context *ctx, int reg, __m128i new_low)
         }                                                                 \
     } while (0)
 
+
+#define SET_GPR_ZE32(ctx_ptr, reg_idx, val)                               \
+    do                                                                    \
+    {                                                                     \
+        if ((reg_idx) != 0)                                               \
+        {                                                                 \
+            __m128i _newVal = _mm_cvtsi64_si128((int64_t)(uint32_t)(val)); \
+            Ps2SetGprLow64(ctx_ptr, reg_idx, _newVal);                    \
+        }                                                                 \
+    } while (0)
+
 #define SET_GPR_S32(ctx_ptr, reg_idx, val)                                \
     do                                                                    \
     {                                                                     \