#include <REGX52.H>

typedef unsigned char byte;

byte xdata CRVENE _at_ 0x8000;
byte xdata PLAVE _at_ 0x8003;

unsigned char stanja[]={0xFE,0xFC,0xF8,0xF0};


void main()
{
	  unsigned char var1;
	  PLAVE=0x01;

	while(1)
	{
		SW12=~CRVENE&0x03;
		//SW3=~CRVENE&0x04;

		switch(SW12){

		 case 0x00:
		 		PLAVE=stanja[0];
				break;
		 case 0x01:
		 		PLAVE=stanja[1];
				break;
		 case 0x02:
				PLAVE=stanja[2];
				break;
		 case 0x03:
				PLAVE=stanja[3];
				break;
		}
	}

}