/*      $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