;----------------------------------------------------------------
; LD222.ASM  Wait for the pattern xxFF hex at input port 1.
; C.P. Diduch, September 28, 2004.
;----------------------------------------------------------------
.ORG    0x8000                  	; ROM
                                	; void main(void) {
	ADDL	R2, NULL, 0xAAAA	; outport(2, 0xAAAA);
	STOREP	2, R2			; 
					;
M0:	LOADP   R0, 1			; while(((0x00FF & inport(1))==0x00FF) {}
	ANDL	R1, R0, 0x00FF		;
	SUBL	NULL, R1,0x00FF		;
	JMPZ	M0			;
					;
	ADDL	R2, NULL, 0x0505	; outport(2, 0x0505);
	STOREP	2, R2			;
M1:	JMP 	M1			; do {}; // Graceful termination.
					; }