Simulation Interrupt

Hi. Can I simulation function void eint1_srv (void) __irq . Can I set intterupt EINT1 in Keil and check this function?

#include <LPC21xx.H>

int volatile intrp_count = 0;
void eint1_srv (void) __irq
{ ++intrp_count; EXTINT= 2; VICVectAddr = 0;
}

void init_eint1 (void)
{ EXTMODE = 2; EXTPOLAR = 2; PINSEL0 = 2 << 28; VICVectAddr0 = (unsigned long) eint1_srv; VICVectCntl0 = 0x20 | 15; VICIntEnable = 1 << 15;
}

int main (void)
{ unsigned int LED_out = 0;

IODIR1 = 0xFF0000;

init_eint1(); while (1) { if ((intrp_count & 0xFF) != LED_out) {
LED_out = (intrp_count & 0xFF);
IOCLR1 = 0xFF0000;
IOSET1 = (LED_out << 16); } }
}