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/* $NetBSD: _main.S,v 1.1 1996/01/31 23:17:57 mark Exp $ */
/* Copyright (c) 1994 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 REGENTS OR CONTRIBUTORS 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.
*
* RiscBSD kernel project
*
* _main.s
*
* Kernel entry/exit code
*
* Created : 12/09/94
* Last updated : 12/09/94
*
* Based on kate/boot/_main.s
*
* $Id: _main.S,v 1.1 1996/04/24 11:08:31 deraadt Exp $
*/
#include "regs.h"
.global ___main
___main:
swi 0x20010
mov sp, r1
sub sl, sp, #2048
ldr r3, [pc, #cli_ptr - . - 8]
str r0, [r3]
#if 0
LDR a4,[pc,#|__cli_ptr|-.-8]
STR a1,[a4,#0]
LDR a4,[pc,#|__himem_ptr|-.-8]
STR a2,[a4,#0]
LDR a4,[pc,#|__stack_ptr|-.-8]
STR sl,[a4,#0]
LDR a4,[pc,#|__robase_ptr|-.-8]
LDR a1,[a4,#0]
LDR a4,[pc,#|__base_ptr|-.-8]
STR a1,[a4,#0]
LDR a4,[pc,#|__rwlimit_ptr|-.-8]
LDR a1,[a4,#0]
LDR a4,[pc,#|__lomem_ptr|-.-8]
STR a1,[a4,#0]
LDR a4,[pc,#|__break_ptr|-.-8]
STR a1,[a4,#0]
#endif
#if 0
cmp sl, r0
movlss pc, lr /* no stack - exit fast */
add sl, sl, #256
#endif
mov fp, #0
b __main
cli_ptr:
.word ___cli
.data
.global ___cli
___cli:
.word 0
#if 0
|__cli_ptr|
DCD |__cli|
|__robase_ptr|
DCD |__robase|
|__base_ptr|
DCD |__base|
|__rwbase_ptr|
DCD |__rwbase|
|__rwlimit_ptr|
DCD |__rwlimit|
|__himem_ptr|
DCD |__himem|
|__lomem_ptr|
DCD |__lomem|
|__break_ptr|
DCD |__break|
|__stack_ptr|
DCD |__stack|
|__time_ptr|
DCD |__time|
EXPORT |__cli| ; CLI from OS_GetEnv
|__cli|
DCD 0
EXPORT |__base| ; BASE (application = 0x8000)
|__base|
DCD 0
EXPORT |__lomem| ; LOMEM
|__lomem|
DCD 0
EXPORT |__himem| ; HIMEM from OS_GetEnv
|__himem|
DCD 0
EXPORT |__break| ; the 'break'
|__break|
DCD 0
EXPORT |__stack| ; stack limit
|__stack|
DCD 0
#endif
|
