;
; *** Listing 8-4 ***
;
; Tests the zero/non-zero status of a variable via
; the accumulator-specific form of MOV followed by a
; register-register AND.
;
	jmp	Skip
;
TestValue	dw	?
;
Skip:
	call	ZTimerOn
	rept	1000
	mov	ax,[TestValue]
	and	ax,ax
	endm
	call	ZTimerOff