Mercurial > repos > blastem

view fib.s68 @ 1748:48a43dff4dc0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added init functions to z80_util.c so new Z80 core is closer to a drop in replacement for the old one
author Michael Pavone <pavone@retrodev.com>
date Thu, 07 Feb 2019 09:43:25 -0800
parents f7fe240a7da6
children b7ecd0d6a77b
line wrap: on
line source

    dc.l $0, start
start:
	moveq #42, d0
	bsr fib
	reset
fib:
	cmp.l #2, d0
	blt base
	subq.l #1, d0
	move.l d0, -(a7)
	bsr fib
	move.l (a7), d1
	exg d0, d1
	move.l d1, (a7)
	subq.l #1, d0
	bsr fib
	move.l (a7)+, d1
	add.l d1, d0
	rts
base:
	moveq #1, d0
	rts