139 lines
3.7 KiB
ArmAsm
139 lines
3.7 KiB
ArmAsm
/* $NetBSD: _main.S,v 1.2 1996/06/03 21:24:49 mark Exp $ */
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/* Copyright (c) 1994 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Brini.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES * LOSS OF USE, DATA, OR PROFITS * OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* _main.s
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*
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* Kernel entry/exit code
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*
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* Created : 12/09/94
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*
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* Based on kate/boot/_main.s
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*/
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#include "regs.h"
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.global ___main
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___main:
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swi 0x20010
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mov sp, r1
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sub sl, sp, #2048
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ldr r3, [pc, #cli_ptr - . - 8]
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str r0, [r3]
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#if 0
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LDR a4,[pc,#|__cli_ptr|-.-8]
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STR a1,[a4,#0]
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LDR a4,[pc,#|__himem_ptr|-.-8]
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STR a2,[a4,#0]
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LDR a4,[pc,#|__stack_ptr|-.-8]
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STR sl,[a4,#0]
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LDR a4,[pc,#|__robase_ptr|-.-8]
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LDR a1,[a4,#0]
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LDR a4,[pc,#|__base_ptr|-.-8]
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STR a1,[a4,#0]
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LDR a4,[pc,#|__rwlimit_ptr|-.-8]
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LDR a1,[a4,#0]
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LDR a4,[pc,#|__lomem_ptr|-.-8]
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STR a1,[a4,#0]
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LDR a4,[pc,#|__break_ptr|-.-8]
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STR a1,[a4,#0]
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#endif
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#if 0
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cmp sl, r0
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movlss pc, lr /* no stack - exit fast */
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add sl, sl, #256
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#endif
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mov fp, #0
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b __main
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cli_ptr:
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.word ___cli
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.data
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.global ___cli
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___cli:
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.word 0
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#if 0
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|__cli_ptr|
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DCD |__cli|
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|__robase_ptr|
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DCD |__robase|
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|__base_ptr|
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DCD |__base|
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|__rwbase_ptr|
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DCD |__rwbase|
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|__rwlimit_ptr|
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DCD |__rwlimit|
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|__himem_ptr|
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DCD |__himem|
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|__lomem_ptr|
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DCD |__lomem|
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|__break_ptr|
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DCD |__break|
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|__stack_ptr|
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DCD |__stack|
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|__time_ptr|
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DCD |__time|
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EXPORT |__cli| ; CLI from OS_GetEnv
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|__cli|
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DCD 0
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EXPORT |__base| ; BASE (application = 0x8000)
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|__base|
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DCD 0
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EXPORT |__lomem| ; LOMEM
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|__lomem|
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DCD 0
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EXPORT |__himem| ; HIMEM from OS_GetEnv
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|__himem|
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DCD 0
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EXPORT |__break| ; the 'break'
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|__break|
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DCD 0
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EXPORT |__stack| ; stack limit
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|__stack|
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DCD 0
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#endif
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