un able to semulate program?

hello all

here is my program which it cannot simulat

please if is it possible do it in your system and tel me my mistake

thanks for all

#include <at89x051.h>

#include "stdio.h"
#include <stdlib.h>
#include <math.h>
#include "lcd.h"


 static unsigned char j=0,k=0,l,m ,minute_cont=0;
 static  unsigned int  day ,second , minute , hour,hour_str[1],minute_str[1] ;
 bit hit,gat,gat1;
 void clock(void);
 void initialize (void);

void initialize( void )
{
/* setup the timer 0 interrupt */

  TMOD= 0x16;// timer0 initialize 8 bit auto reload external counter mode 2





    TH0 = -64;                                 // input clk = 64khz interrupt occur every 64*(15.625micro secondset)=1ms
    TL0 = -64;

    EA=1;
	ET0=1; //timer 0 interrupt enable
    TR0=1;
    ET1=0;
	EX1=0;
    EX0=0; // ENABLE EXTERNAL 0 INTERRUPT SYNC LOSS
    IT0=0; // EXTERNAL INTERRUPT 0 IS FALLING EDGE-TRIGGERE

 second = 0 ;
  minute = 0 ;
  hour   = 0 ;
  day    = 0 ;
 lcd_reset();
  }


void main(void)
{
  char  data buf1[20];
  initialize();


    for(;;)
        {
          P3_0=1;
		 hit=P3_0;
		if(minute_cont==0)
        {
		gat=1;
		gat1=gat&hit;

		if(gat1==1)
		{
		minute_cont=5;
		minute_str[j]=minute;
		hour_str[j]=hour;
		if(j<5)
		j++;
		}
		}
		if(sw1==0)
		{
		   for(k=0;k<5;k++)
		   {
		   		sprintf(buf1,"%02uH    %02uM",hour_str[k],minute_str[k]);
				string_to_lcd_line(buf1,LCD_lINE_1);
				for(l=0;l<150;l++)
		        for(m=0;m<150;m++);

			}
		 }

    sprintf (buf1,"%02dd %02dh %02dm %02ds",day,hour,minute,second);
    string_to_lcd_line(buf1,LCD_lINE_1);


        }

}

void clock (void)
{

             if ( ++second == 60 )
                {
                second=0;
				minute_cont--;
                if ( ++minute == 60 )
                   {
                   minute=0;

                   if ( ++hour == 24 )
                        {
                        hour=0;

                        if ( ++day >=99 )
                            {
                            day=0;
                            }


                        }
                   }
                }

}


void timer0 (void) interrupt 1 using 3   /* Int Vector at 000BH, Reg Bank 1 */
{
    static unsigned char interrupt_count  = 0;
    static unsigned char deci_sec  = 0;


    if (++interrupt_count == 100)  //100
        {                     // 64000/64=1000   100 * one_mili_second = 1 decisec =0.1 sec
         interrupt_count = 0 ;

         if (++deci_sec == 10 ) //10
            {
            deci_sec=0;
            clock();
            }
        }
TF0=0;
EA=1;
}