count-->s[16]

state-->r[18]
flashes-->r[19]
this-->r[20]

DDRD-->i[0x11]
PORTD-->i[0x12]
PORTB-->i[0x18]
DDRB-->i[0x17]

[-->start, -->interrupt, -->interrupt, -->interrupt]

; This example program flashes an LED on pin PD0. The timing values are suitable
; for running on the 1MHz RC oscillator.
chapter start
	state = 1
	DDRD = 1
	PORTD = 1
	state = 0

	loop)
	flashes = 1 (1) 5			; flash once, twice, thrice, four times
		this = 0 (1) 2flashes		; loop for twice the number of flashes.
			down wait
			state = 1 - state
			PORTD = state
		repeat
		this = 0 (1) 5			; pause between sequences
			down wait
		repeat
	repeat
	-->loop					; do it again
close

chapter wait,1
	count = 0(1)10000
	repeat
	up
close

service interrupt,2
close