#include "m9402.h"
int touch()     		/*タッチセンサ監視用関数*/
{
    int a;
    int b;
 b=0;

    a = (inportb(EDRH)&0xf0);
    a = (a >> 4);
 if((a & 0x01)==0x01)
   b+=10;
 if((a & 0x02)==0x02)
   b+=100;
 if((a & 0x04)==0x04)
   b+=1;
 
	sys8(3,1,b);
}