romcalls.S revision 1.3
1 1.3 tsutsui /* $NetBSD: romcalls.S,v 1.3 2002/04/13 02:43:44 tsutsui Exp $ */ 2 1.1 tsubai 3 1.1 tsubai /*- 4 1.1 tsubai * Copyright (C) 1999 Tsubai Masanari. All rights reserved. 5 1.1 tsubai * 6 1.1 tsubai * Redistribution and use in source and binary forms, with or without 7 1.1 tsubai * modification, are permitted provided that the following conditions 8 1.1 tsubai * are met: 9 1.1 tsubai * 1. Redistributions of source code must retain the above copyright 10 1.1 tsubai * notice, this list of conditions and the following disclaimer. 11 1.1 tsubai * 2. Redistributions in binary form must reproduce the above copyright 12 1.1 tsubai * notice, this list of conditions and the following disclaimer in the 13 1.1 tsubai * documentation and/or other materials provided with the distribution. 14 1.1 tsubai * 3. The name of the author may not be used to endorse or promote products 15 1.1 tsubai * derived from this software without specific prior written permission. 16 1.1 tsubai * 17 1.1 tsubai * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 1.1 tsubai * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 1.1 tsubai * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 1.1 tsubai * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 1.1 tsubai * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 1.1 tsubai * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 1.1 tsubai * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 1.1 tsubai * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 1.1 tsubai * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 1.1 tsubai * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 1.1 tsubai */ 28 1.1 tsubai 29 1.1 tsubai #include <mips/asm.h> 30 1.1 tsubai #include <mips/cpuregs.h> 31 1.1 tsubai #include <machine/romcall.h> 32 1.1 tsubai 33 1.1 tsubai .text 34 1.1 tsubai .align 2 35 1.1 tsubai .set noreorder 36 1.1 tsubai 37 1.3 tsutsui .globl rom_halt 38 1.3 tsutsui rom_halt: 39 1.1 tsubai addu sp, sp, -16 40 1.1 tsubai li a0, 8 # RB_HALT 41 1.1 tsubai sw a0, 0(sp) 42 1.1 tsubai li a0, SYS_reboot 43 1.1 tsubai move a1, sp 44 1.1 tsubai syscall 45 1.1 tsubai nop 46 1.1 tsubai 47 1.1 tsubai .globl rom_open 48 1.1 tsubai rom_open: 49 1.1 tsubai addu sp, sp, -32 50 1.1 tsubai sw ra, 28(sp) 51 1.1 tsubai 52 1.1 tsubai sw a0, 16(sp) 53 1.1 tsubai sw a1, 20(sp) 54 1.1 tsubai 55 1.1 tsubai li a0, SYS_open 56 1.1 tsubai addu a1, sp, 16 57 1.1 tsubai syscall 58 1.1 tsubai nop 59 1.1 tsubai 60 1.1 tsubai lw ra, 28(sp) 61 1.1 tsubai addu sp, sp, 32 62 1.1 tsubai j ra 63 1.1 tsubai nop 64 1.1 tsubai 65 1.1 tsubai .globl rom_close 66 1.1 tsubai rom_close: 67 1.1 tsubai addu sp, sp, -32 68 1.1 tsubai sw ra, 28(sp) 69 1.1 tsubai 70 1.1 tsubai sw a0, 16(sp) 71 1.1 tsubai 72 1.1 tsubai li a0, SYS_close 73 1.1 tsubai addu a1, sp, 16 74 1.1 tsubai syscall 75 1.1 tsubai nop 76 1.1 tsubai 77 1.1 tsubai lw ra, 28(sp) 78 1.1 tsubai addu sp, sp, 32 79 1.1 tsubai j ra 80 1.1 tsubai nop 81 1.1 tsubai 82 1.1 tsubai .globl rom_read 83 1.1 tsubai rom_read: 84 1.1 tsubai addu sp, sp, -32 85 1.1 tsubai sw ra, 28(sp) 86 1.1 tsubai 87 1.1 tsubai sw a0, 16(sp) 88 1.1 tsubai sw a1, 20(sp) 89 1.1 tsubai sw a2, 24(sp) 90 1.1 tsubai 91 1.1 tsubai li a0, SYS_read 92 1.1 tsubai addu a1, sp, 16 93 1.1 tsubai syscall 94 1.1 tsubai nop 95 1.1 tsubai 96 1.1 tsubai lw ra, 28(sp) 97 1.1 tsubai addu sp, sp, 32 98 1.1 tsubai j ra 99 1.1 tsubai nop 100 1.1 tsubai 101 1.1 tsubai .globl rom_write 102 1.1 tsubai rom_write: 103 1.1 tsubai addu sp, sp, -32 104 1.1 tsubai sw ra, 28(sp) 105 1.1 tsubai 106 1.1 tsubai sw a0, 16(sp) 107 1.1 tsubai sw a1, 20(sp) 108 1.1 tsubai sw a2, 24(sp) 109 1.1 tsubai 110 1.1 tsubai li a0, SYS_write 111 1.1 tsubai addu a1, sp, 16 112 1.1 tsubai syscall 113 1.1 tsubai nop 114 1.1 tsubai 115 1.1 tsubai lw ra, 28(sp) 116 1.1 tsubai addu sp, sp, 32 117 1.1 tsubai j ra 118 1.1 tsubai nop 119 1.1 tsubai 120 1.1 tsubai 121 1.1 tsubai .globl rom_lseek 122 1.1 tsubai rom_lseek: 123 1.1 tsubai addu sp, sp, -32 124 1.1 tsubai sw ra, 28(sp) 125 1.1 tsubai 126 1.1 tsubai sw a0, 16(sp) 127 1.1 tsubai sw a1, 20(sp) 128 1.1 tsubai sw a2, 24(sp) 129 1.1 tsubai 130 1.1 tsubai li a0, SYS_lseek 131 1.1 tsubai addu a1, sp, 16 132 1.1 tsubai syscall 133 1.1 tsubai nop 134 1.1 tsubai 135 1.1 tsubai lw ra, 28(sp) 136 1.1 tsubai addu sp, sp, 32 137 1.1 tsubai j ra 138 1.1 tsubai nop 139
Indexes created Thu Oct 02 14:10:14 GMT 2025