Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rutgers!ames!ptsfa!ihnp4!inuxc!pur-ee!uiucdcs!uxc.cso.uiuc.edu!hamilton
From: hamilton@uxc.cso.uiuc.edu
Newsgroups: comp.sys.amiga
Subject: Re: Boot code. Help Needed
Message-ID: <172200031@uxc.cso.uiuc.edu>
Date: Mon, 16-Mar-87 13:52:00 EST
Article-I.D.: uxc.172200031
Posted: Mon Mar 16 13:52:00 1987
Date-Received: Wed, 18-Mar-87 06:40:34 EST
References: <415@inria.UUCP>
Lines: 30
Nf-ID: #R:inria.UUCP:415:uxc.cso.uiuc.edu:172200031:000:966
Nf-From: uxc.cso.uiuc.edu!hamilton    Mar 16 12:52:00 1987


/* Written 10:34 am  Mar 13, 1987 by rouaix@inria.UUCP in uxc.cso.uiuc.edu:comp.sys.amiga */
/* ---------- "Boot code. Help Needed" ---------- */
I would like to know what the amiga does when booting on a system disk.
The code lies in blocks 0 and 1 of bootable disks.
Has anyone a commented disassembly listing ?
It would be great. Thanks .
/* End of text from uxc.cso.uiuc.edu:comp.sys.amiga */

    not much there.  slightly paraphrased, it's:

			lea	DosName(pc),a1
			jsr	LVOFindResident(a6)
			tst.l	d0
			beq	fail		fail, return nonzero
			move.l	d0,a0
			move.l	22(a0),a0	a0 = a0->rt_Init
			moveq	#0,d0		succeed, return 0
	return		rts
	fail		moveq	#$FF,d0
			bra	return
	DosName		dc.b	"dos.library"


	wayne hamilton
	U of Il and US Army Corps of Engineers CERL
UUCP:	ihnp4!uiucuxc!hamilton
ARPA:	hamilton%uiucuxc@a.cs.uiuc.edu	USMail:	Box 476, Urbana, IL 61801
CSNET:	hamilton%uiucuxc@uiuc.csnet	Phone:	(217)333-8703
CIS:    [73047,544]			PLink: w hamilton