Pocket_Computer.c

#define LEFT  1
#define RIGHT 2

main(){
  FILE *pio;
  int input=0,x=72,y=26;

  pio=fopen("pio","a+");
  if(pio==NULL) abort();
  pioset(LEFT&RIGHT);

  line(0,27,143,47,0,0xffff,2);

  for(;;){
    input=pioget();
    gcursor(x,y);
    gprint(0);
    if(input&LEFT){
      x--;
    }
    if(input&RIGHT){
      x++;
    }
    gcursor(x,y);
    gprint("0010D63939D61000");
  }
}