Help in decoding Remote control of NEC protocol

void ir_sense(void) interrupt 2					  
{	
	unsigned int z=0,j=0;
	unsigned int k=0,l=0,m=0;
	EX0 = 0;									 
  	EX1 = 0;
		for(z=0;z<1762;z++);               //9.97 msec
		for(j=0;j<612;j++);	      //3.5msec
			
			while(irbitcount < 0x20)   //collect 32 bits					  
  			{	
			    if(logic_1_flag==1)       //check if this flag is true
				{	for(k=0;k<129;k++);    //1.12msec
					logic_1_flag=0;
				}
				else if(logic_0_flag==1)
				{	for(l=0;l<122;l++);       //1.06msec
					logic_0_flag=0;
				}
    			if(IR)	                   //if ir pin is one	  
				{	dat1 >>=1;
					dat1|=0X80000000;
					for(m=0;m<140;m++);    //1.219msec	
					irbitcount++;
					logic_1_flag=1;						  
	  			}											  
				else if(!IR)      //if ir pin is low
    			{	dat1 >>=1; 
					dat1 |=0X00000000;
					irbitcount++;							 
	  				logic_0_flag=1;	
				}
 			} 
		IR = 1;									
  		irbitcount = 0;							
  		sensor_chk = 1;	
}