// time a single memory access with the VIA timer


VIA	=$e840
T2L	=VIA + 8
T2H	=VIA + 9
ACR	=VIA + 11

; define the memory address to access under timer
FAST	=$081100

	*=$1000

	sei
	
	; native mode
	clc
	xce

	lda ACR
	and #%11011111
	sta ACR
start	
	lda #0
	sta T2L
	sta T2H

	lda @FAST

	lda T2L
;	ldx T2H
end
	; emulation mode
	.xs
	sec
	xce
	cli
	brk