Can anyone tell me why the Pinnacle software simulator does not get triggered for an external interupt 1 is invoked.

ORG 0000H
LJMP MAIN

ORG 0013H
PUSH ACC
PUSH PSW

; This is where I do some flashing of LED....etc

POP PSW
POP ACC
RETI

MAIN:
SETB P3.3
SETB EX1
SETB IT1
SETB EA

; Here I do other thing until the INT1 is triggered

What I do is that when I'm running the simulator, I toggle the port from 1 - 0 and then 0 - 1, but it does not trigger EXT1.

Does PINNACLE support the EXT1 simulation or have I done something wrong.

Rgds