INCLUDE 'mc9s12dp512.inc'
	XREF	MYRAM
	XREF	COUNTREG
	XREF	CNTVAL
	XREF	CNTVAL
	XDEF 	TEST_CHKSUM
TEST_CHKSUM
	BSET	 DDRB,%11111111		
	LDAA	 #CNTVAL+1	
	STAA	 COUNTREG 	
	LDX	 #MYRAM	
	CLRA			
B3	ADDA	 1,X+ 	
	DEC	 COUNTREG 	
	BNE 	 B3		
	CMPA	 #0		
	BEQ	 G_1		
	LDAA	#'B'		
	STAA	PORTB		
	RTS
G_1	LDAA	#'G'		
	STAA	PORTB		
	RTS
	END