; I1WAVE.ASM
; CREATE A WAVEFORM BY SWITCHING I1 ON AND OFF WITH DELAYS IN BETWEEN
	ORG	8000H		;MUST ALWAYS BE ORG'ED AT 8000H FOR SBC-1
IWAVE:	CLR	C		;(C3 HEX) NEEDED ONLY IF USING AUTOBOOT
REPEAT:	SETB	INT0		;SET INTERRUPT 0 PIN HIGH
	MOV	A,#1		;NUMBER OF SECONDS IN ACCUMULATOR
	CALL	45H		;DELAY IN MILLISECONDS ROUTINE IN JUMP TABLE
	CLR	INT0		;SET INTERRUPT 0 PIN LOW
	MOV	A,#1		;NUMBER OF SECONDS IN ACCUMULATOR
	CALL	45H		;DELAY IN MILLISECONDS ROUTINE IN JUMP TABLE
	JMP	REPEAT		;DO NEXT CYCLE
	END			;NEEDED BY MANY ASSEMBLER PROGRAMS