/* $NetBSD: startit.s,v 1.3 2009/11/15 20:38:36 snj Exp $ */ /* * Copyright (c) 1996 Ignatios Souvatzis * Copyright (c) 1994 Michael L. Hitch * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * From: $NetBSD: startit.s,v 1.3 2009/11/15 20:38:36 snj Exp $ */ #include "machine/asm.h" .set ABSEXECBASE,4 .text ENTRY_NOPROFILE(startit) movel 4:w,%a6 | SysBase movel %sp@(4),%a0 | Boot loader address movel %sp@(8),%a1 | IOR movel %sp@(12),%a5 | Console data /* * Installboot can modify the default command in the bootblock loader, * but boot.amiga uses the default command in boot.amiga. Copy the * possibly modified default command before entering the boot loader. */ lea %pc@(_C_LABEL(default_command)),%a2 lea %a0@(16),%a3 moveq #(32/4)-1,%d0 Lcommand: movel %a2@+,%a3@+ dbra %d0,Lcommand jsr %a0@(12) rts |