test/subroutine.s


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.org $2000
buf:

.org $0
ptr:
.qword buf

.org $8000
reset:
	cps
	ldx.w #$FFFF
	txs
start:
	ldy #0
	ldb #0
	inb
	stb $C010
	deb
	jsl clr_buf
	jmp start

clr_buf:
	lda #0
	cpy.w #$1FFF
	bcs clr_buf_end
	sta.q (ptr), y
	tya
	adc #8
	tay
	tba
	sta.q (ptr), y
	tya
	adc #8
	tay
	tba
	jmp clr_buf
clr_buf_end:
	ldy.w #0
	rtl


.org $FFC0
.qword reset
done