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62 lines
1.7 KiB
ArmAsm
62 lines
1.7 KiB
ArmAsm
/* $NetBSD: bios.S,v 1.2 2012/01/21 19:44:30 nonaka Exp $ */
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/*-
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* Copyright (C) 2005 NONAKA Kimihiro <nonaka@netbsd.org>
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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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*
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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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#include <machine/asm.h>
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/*
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* int getchar(void);
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*/
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ENTRY(getchar)
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mov #0, r4
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mov #1, r0
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trapa #0x3f
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rts
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nop
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/*
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* void putchar(int c);
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*/
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ENTRY(putchar)
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mov #31, r0
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trapa #0x3f
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rts
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nop
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/*
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* __dead void _rtt(void);
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*/
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ENTRY(_rtt)
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mov #1, r4 /* reboot */
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mov #11, r0
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trapa #0x3f
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mov.l .L.start, r0
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jmp @r0
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nop
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.L.start:
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.long 0xc0000000
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