bios.S revision 1.2
1 1.2 nonaka /* $NetBSD: bios.S,v 1.2 2012/01/21 19:44:30 nonaka Exp $ */ 2 1.1 tsutsui 3 1.1 tsutsui /*- 4 1.2 nonaka * Copyright (C) 2005 NONAKA Kimihiro <nonaka (at) netbsd.org> 5 1.1 tsutsui * All rights reserved. 6 1.1 tsutsui * 7 1.1 tsutsui * Redistribution and use in source and binary forms, with or without 8 1.1 tsutsui * modification, are permitted provided that the following conditions 9 1.1 tsutsui * are met: 10 1.1 tsutsui * 1. Redistributions of source code must retain the above copyright 11 1.1 tsutsui * notice, this list of conditions and the following disclaimer. 12 1.1 tsutsui * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 tsutsui * notice, this list of conditions and the following disclaimer in the 14 1.1 tsutsui * documentation and/or other materials provided with the distribution. 15 1.1 tsutsui * 16 1.2 nonaka * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.2 nonaka * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.2 nonaka * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.2 nonaka * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.2 nonaka * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 1.2 nonaka * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 1.2 nonaka * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 1.2 nonaka * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.2 nonaka * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 1.2 nonaka * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.1 tsutsui */ 27 1.1 tsutsui 28 1.1 tsutsui #include <machine/asm.h> 29 1.1 tsutsui 30 1.1 tsutsui /* 31 1.1 tsutsui * int getchar(void); 32 1.1 tsutsui */ 33 1.1 tsutsui ENTRY(getchar) 34 1.1 tsutsui mov #0, r4 35 1.1 tsutsui mov #1, r0 36 1.1 tsutsui trapa #0x3f 37 1.1 tsutsui rts 38 1.1 tsutsui nop 39 1.1 tsutsui 40 1.1 tsutsui /* 41 1.1 tsutsui * void putchar(int c); 42 1.1 tsutsui */ 43 1.1 tsutsui ENTRY(putchar) 44 1.1 tsutsui mov #31, r0 45 1.1 tsutsui trapa #0x3f 46 1.1 tsutsui rts 47 1.1 tsutsui nop 48 1.1 tsutsui 49 1.1 tsutsui /* 50 1.1 tsutsui * __dead void _rtt(void); 51 1.1 tsutsui */ 52 1.1 tsutsui ENTRY(_rtt) 53 1.1 tsutsui mov #1, r4 /* reboot */ 54 1.1 tsutsui mov #11, r0 55 1.1 tsutsui trapa #0x3f 56 1.1 tsutsui mov.l .L.start, r0 57 1.1 tsutsui jmp @r0 58 1.1 tsutsui nop 59 1.1 tsutsui 60 1.1 tsutsui .L.start: 61 1.1 tsutsui .long 0xc0000000 62
Indexes created Thu Oct 02 01:09:59 GMT 2025