	list      p=16F506  ; define processor
	#include  ..\m0-4.asm
	config_
#define	OPTIONinit	b'11000101'	; no wakup, no pullup, Clock 1:32
#define TRISBinit 	b'11111111'	; all ports input bar PB2	
#define PORTBinit 	b'00000000'	; BIO  all LOW 
#define TRISCinit 	b'11111110'	; all ports input bar PC0	
#define PORTCinit 	b'00000000'	; CIO  all LOW 
#define ADCON0init 	b'00110001'	; all analog,intosc,RB0,GO_NOT_DONE,enable

	init_
	
	
	do_	PORTc,=,PORTB,XOR,.1,lit8
	delay .1000000



	goto main
 end