70 lines
2.7 KiB
ArmAsm
70 lines
2.7 KiB
ArmAsm
/* $NetBSD: srt0.s,v 1.2 1995/03/29 21:24:14 ragge Exp $ */
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/*
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* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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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 at Ludd, University of Lule}.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* All bugs are subject to removal without further notice */
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/*
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* Auto-moving startup code for standalone programs. Can be loaded
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* (almost) anywhere in memory but moves itself to the position
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* it is linked for. Must be started at first position, recommended
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* is phys addr 0 (boot loads programs at 0, but starts them at the
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* position set in a.out header.
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*/
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nisse: .set nisse,0 # pass -e nisse to ld gives OK start addr
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.globl nisse
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start: .globl start
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nop;nop; # If we get called by calls, or something
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movl $start, sp # Probably safe place for stack
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jsb 1f
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1: movl (sp)+,r0
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bicl2 $0x1ff,r0
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subl3 sp,$_end,r4 # Get size to copy, size < 64K
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movc3 r4,(r0),(sp) # Copy all
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pushl $cont # new run address
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rsb # Doit
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cont: movl $start, sp
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calls $0,_main # Were here!
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halt # no return
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.globl _hoppabort
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_hoppabort: .word 0x0
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movl 4(ap),r6
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movl 8(ap),r11
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movl 0xc(ap),r10
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calls $0,(r6)
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