#include "RCX_RTE.h"

#define port7_addr  0xffbe
#define port7       *((volatile byte *) port7_addr)
#define Prgm        ! ( port7 & ( 1 << 7 ) )
#define msCount     100


/* A/D converter */

    #define byte        unsigned char
    #define word        unsigned short int

    #define ADCR  *((volatile byte *) 0xffe9) /* A/D Control Register*/
    #define ADCSR *((volatile byte *) 0xffe8) /* A/D Control Status Register*/
    #define ADDRA *((volatile word *) 0xffe0) /* A/D Data Register A */

void delay(int16 ms) 
{
  int16 i;
  while( ms > 0){
     for(i=0; i<msCount; i++);
     ms--;
 
  }
}
void _start(void) 
{ 

ADCSR &=~(1<<4); /* ADCSR.bit 4 = 0, single shot mode */
  while (! Prgm){
       
ADCSR |=(1<<5); /* ADCSR.bit 5 = 1, start A/D conversion */
       delay(1000);    
       lcd_show_int16((int16)(95 - (((int16)(ADDRA >> 6) & 0x3ff))/8));
    }
 RCX_Reset();
}