diff --git a/Source/portable/Renesas/RX600/port.c b/Source/portable/Renesas/RX600/port.c
index 84b304a35..d13158026 100644
--- a/Source/portable/Renesas/RX600/port.c
+++ b/Source/portable/Renesas/RX600/port.c
@@ -259,9 +259,6 @@ void vSoftwareInterruptISR( void )
 #pragma inline_asm prvYieldHandler
 static void prvYieldHandler( void )
 {
-	/* Install as the software interrupt handler. */
-	.RVECTOR    _VECT( _ICU_SWINT ), _vSoftwareInterruptISR
-
 	/* Re-enable interrupts. */
 	SETPSW	I
 
diff --git a/Source/portable/Renesas/RX600/port_asm.src b/Source/portable/Renesas/RX600/port_asm.src
new file mode 100644
index 000000000..eb112e258
--- /dev/null
+++ b/Source/portable/Renesas/RX600/port_asm.src
@@ -0,0 +1,14 @@
+		.GLB	_vSoftwareInterruptISR
+
+		.SECTION   P,CODE
+		
+_vSoftwareInterruptEntry:
+
+	BRA	_vSoftwareInterruptISR
+
+		.RVECTOR	27, _vSoftwareInterruptEntry
+
+		.END
+
+
+