problem in debugging timers with interrupt

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Is the counter even ticking?

hi,i have written a program for timer 0 using interrupt. when i am debugging my code using keil uvision4 simulator,it doesn't come in the Interrupt service routine.i have made change in startup.s file but still it doen't come in ISR.
here is my source code

#include<LPC214x.h>
void toisr(void) __irq;
int main()
{
PINSEL0=0x00000000;
IODIR0=0x000000ff;
T0PR=0x00007503;
T0TCR=0x00000002;
T0MCR=0x00000003;
T0MR0=1000;
T0TCR=0x00000001;
VICVectAddr1=(unsigned)toisr;
VICVectCntl1=0x00000011;
VICIntEnable=0x00000010;
while(1);
}

void toisr(void) __irq
{
IOSET0=0x000000ff;
T0IR=0x00000001;
VICVectAddr1=0x00000000;
}

and here are the changes that i have made in vector addresses of startup.s file

; Exception Vectors
; Mapped to Address 0.
; Absolute addressing mode must be used.
; Dummy Handlers are implemented as infinite loops which can be modified.

IMPORT toisr

Vectors
LDR PC, Reset_Addr
LDR PC, Undef_Addr
LDR PC, SWI_Addr
LDR PC, PAbt_Addr
LDR PC, DAbt_Addr
NOP ; Reserved Vector
; LDR PC, IRQ_Addr;
LDR PC, [PC, #-0x0FF0] ; Vector from VicVectAddr
LDR PC, FIQ_Addr

Reset_Addr DCD Reset_Handler
Undef_Addr DCD Undef_Handler
SWI_Addr DCD SWI_Handler
PAbt_Addr DCD PAbt_Handler
DAbt_Addr DCD DAbt_Handler DCD 0 ; Reserved Address
IRQ_Addr DCD toisr
FIQ_Addr DCD FIQ_Handler

Undef_Handler B Undef_Handler
SWI_Handler B SWI_Handler
PAbt_Handler B PAbt_Handler
DAbt_Handler B DAbt_Handler
;IRQ_Handler B toisr
FIQ_Handler B FIQ_Handler

; Reset Handler

EXPORT Reset_Handler
Reset_Handler

please help me to find out why control doesn't come in ISR.

yes timer is working properly and it is also raising the interrupt but when timer raise the interrupt,the control of the program doesn't come in the interrupt service routine.

yes timer is working properly

You are clearly wrong with that assumption or your expectations are wrong or you are an idiot or it is a combination of all three. Don't waste my time telling me which it is.

I am tired of reading drivel. I await a description of a problem worthy of my attention.

It will probably be a long wait.

k sr thanks for all this,,,,,,,,,i jst want 2 kno only hw can i *** u online BKL................................