#include <reg51.h>
#include <absacc.h>  
sfr PMRREG = 0xC4;
void main(void)
  {
    unsigned char x;
    PMRREG = 0x81;
    XBYTE[0]='A';  
    XBYTE[1]='B';  
    XBYTE[2]='C';  
    for(x=0;x<3;x++)		
      {
        P0=XBYTE[x];  
        P1=XBYTE[x];  
        P2=XBYTE[x];  
      }
  }