/*
 * $NetBSD: start.s,v 1.8 2011/02/01 20:19:31 chuck Exp $
 *
 * Copyright (c) 1995 Charles D. Cranor
 * 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.
 */
/*
 * start: at address 0x4000, load at 0xa000 (so put stack at 0x9ff0)
 */

#include <m68k/asm.h>

        .text
ASENTRY_NOPROFILE(_start)
ASENTRY_NOPROFILE(start)
        movb    #0,_C_LABEL(reboot)
        jra     Ldoit
restart:
        movb    #1,_C_LABEL(reboot) | fall through
        
Ldoit:
        movl    #0x00006ff0,%sp
        jsr _C_LABEL(sboot)

Lname:
        .ascii "sboot\0"

ENTRY_NOPROFILE(go)
        clrl    %d0             | dev lun
        clrl    %d1             | ctrl lun
        movl    #0x2c, %d4      | flags for IPL
        movl    #0xfffe1800, %a0        | address of "disk" ctrl
        movl    %sp@(4), %a1    | entry point of loaded program
        movl    %d0, %a2        | media config block (NULL)
        movl    %sp@(8), %a3    | nb args (start)
        movl    %sp@(12), %a4   | nb end args
        movl    #Lname, %a5     | args
        movl    #Lname+5, %a6   | end args
                                | SRT0 will set stack
        jmp     %a1@            | GO!