diff --git a/Demo/NEC_V850ES_IAR/RegTest.s85 b/Demo/NEC_V850ES_IAR/RegTest.s85
index bb65ac0340..38327f258c 100644
--- a/Demo/NEC_V850ES_IAR/RegTest.s85
+++ b/Demo/NEC_V850ES_IAR/RegTest.s85
@@ -86,6 +86,7 @@ vRegTest1:
 	MOV		0x23232323, R30
 	
 vReg1TestLoopStart:
+	TRAP	0
 	MOV		0x01010101, R31
 	CMP		R31, R1
 	BZ		$+6