saw_wave0:

	mov	#64000,w2					;fs
	mov	fosc0,w3						
	lsr	w3,#4,w3					;w3=(4f)
	bset	w3,#0						;no operation by zero!
	repeat	#17
	div.u	w2,w3						;c=fs/(4f)
	mov	w0,c_osc0

	mov	countosc0,w3					;Modulocounter
	mul.uu	w3,w3,w4 

	mov	puffer0_0,w2					;Speicher s(n-1),s(n)
	mov	puffer0_1,w3					;32bit 2fach eimerkette
	mov	w2,puffer1_0
	mov	w3,puffer1_1
	mov	w4,puffer0_0
	mov	w5,puffer0_1

	sub	w4,w2,w4					;32bit Subtraction
	subb	w5,w3,w1
	mul.uu	w1,w0,w12					;s=S(k)-S(k-1)*c

	goto	w14