#include<reg51.h>
#include<intrins.h>
#include<absacc.h>
#define uchar unsigned char
#define uint unsigned int
#define adch0 XBYTE[0x7f00]

sbit hben=P1^5;
sbit int1=P3^3;

uchar datl,dath;

void timer0(void) interrupt 1 using 1
{TL0=0xb0;
 TH0=0x3c;
 adch0=0x50;
 while(int1==1)
    {}
 datl=adch0;
 hben=1;
 dath=adch0;
 _nop_();
 hben=0;
}

main()
{TMOD=0x01;
 TL0=0xb0;
 TH0=0x3c;
 EA=1;
 ET0=1;
 TR0=1;
 hben=0;
 while(1)
 {;}
}