1 1.1 leo /* $NetBSD: biosrw.s,v 1.1 2002/02/24 20:51:07 leo Exp $ */ 2 1.1 leo 3 1.1 leo /* 4 1.1 leo * Copyright (c) 1995 Waldi Ravens. 5 1.1 leo * All rights reserved. 6 1.1 leo * 7 1.1 leo * Redistribution and use in source and binary forms, with or without 8 1.1 leo * modification, are permitted provided that the following conditions 9 1.1 leo * are met: 10 1.1 leo * 1. Redistributions of source code must retain the above copyright 11 1.1 leo * notice, this list of conditions and the following disclaimer. 12 1.1 leo * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 leo * notice, this list of conditions and the following disclaimer in the 14 1.1 leo * documentation and/or other materials provided with the distribution. 15 1.1 leo * 3. All advertising materials mentioning features or use of this software 16 1.1 leo * must display the following acknowledgement: 17 1.1 leo * This product includes software developed by Waldi Ravens. 18 1.1 leo * 4. The name of the author may not be used to endorse or promote products 19 1.1 leo * derived from this software without specific prior written permission. 20 1.1 leo * 21 1.1 leo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 1.1 leo * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 1.1 leo * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 1.1 leo * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 1.1 leo * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 1.1 leo * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 1.1 leo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 1.1 leo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 1.1 leo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 1.1 leo * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 1.1 leo */ 32 1.1 leo 33 1.1 leo /* int bios_read(buffer, offset, count, dev) */ 34 1.1 leo 35 1.1 leo .globl _bios_read 36 1.1 leo .text 37 1.1 leo .even 38 1.1 leo 39 1.1 leo _bios_read: 40 1.1 leo movml d1-d2/a1-a2,sp@- 41 1.1 leo movl sp@(24),sp@- | offset 42 1.1 leo movw sp@(38),sp@- | device 43 1.1 leo movw #-1,sp@- 44 1.1 leo movw sp@(38),sp@- | count 45 1.1 leo movl sp@(30),sp@- | buffer 46 1.1 leo movw #8,sp@- | read, physical mode 47 1.1 leo movw #4,sp@- 48 1.1 leo trap #13 | Rwabs() 49 1.1 leo lea sp@(18),sp 50 1.1 leo movml sp@+,d1-d2/a1-a2 51 1.1 leo rts 52 1.1 leo 53 1.1 leo /* int bios_write(buffer, offset, count, dev) */ 54 1.1 leo 55 1.1 leo .globl _bios_write 56 1.1 leo .text 57 1.1 leo .even 58 1.1 leo 59 1.1 leo _bios_write: 60 1.1 leo movml d1-d2/a1-a2,sp@- 61 1.1 leo movl sp@(20),sp@- | offset 62 1.1 leo movw sp@(34),sp@- | device 63 1.1 leo movw #-1,sp@- 64 1.1 leo movw sp@(34),sp@- | count 65 1.1 leo movl sp@(26),sp@- | buffer 66 1.1 leo movw #9,sp@- | write, physical mode 67 1.1 leo movw #4,sp@- 68 1.1 leo trap #13 | Rwabs() 69 1.1 leo lea sp@(18),sp 70 1.1 leo movml sp@+,d1-d2/a1-a2 71 1.1 leo rts 72 1.1 leo 73 1.1 leo /* int bios_critic(error) */ 74 1.1 leo 75 1.1 leo .globl _bios_critic 76 1.1 leo .text 77 1.1 leo .even 78 1.1 leo 79 1.1 leo _bios_critic: 80 1.1 leo movw sp@(4),d0 81 1.1 leo extl d0 82 1.1 leo rts 83
Indexes created Tue Sep 30 17:09:57 GMT 2025