cpufunc.S revision 1.1.14.2
1 /* $NetBSD: cpufunc.S,v 1.1.14.2 2007/11/06 23:17:52 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <machine/asm.h> 40 41 NENTRY(x86_read_psl) 42 pushfl 43 popl %eax 44 ret 45 46 NENTRY(x86_write_psl) 47 movl 4(%esp), %eax 48 pushl %eax 49 popfl 50 ret 51 52 NENTRY(x86_disable_intr) 53 cli 54 ret 55 56 NENTRY(x86_enable_intr) 57 sti 58 ret 59 60 NENTRY(inb) 61 movl 4(%esp), %edx 62 xorl %eax, %eax 63 inb %dx, %al 64 ret 65 66 NENTRY(insb) 67 pushl %edi 68 movl 8(%esp), %edx 69 movl 12(%esp), %edi 70 movl 16(%esp), %ecx 71 cld 72 rep 73 insb 74 popl %edi 75 ret 76 77 NENTRY(inw) 78 movl 4(%esp), %edx 79 xorl %eax, %eax 80 inw %dx, %ax 81 ret 82 83 NENTRY(insw) 84 pushl %edi 85 movl 8(%esp), %edx 86 movl 12(%esp), %edi 87 movl 16(%esp), %ecx 88 cld 89 rep 90 insw 91 popl %edi 92 ret 93 94 NENTRY(inl) 95 movl 4(%esp), %edx 96 inl %dx, %eax 97 ret 98 99 NENTRY(insl) 100 pushl %edi 101 movl 8(%esp), %edx 102 movl 12(%esp), %edi 103 movl 16(%esp), %ecx 104 cld 105 rep 106 insl 107 popl %edi 108 ret 109 110 NENTRY(outb) 111 movl 4(%esp), %edx 112 movl 8(%esp), %eax 113 outb %al, %dx 114 ret 115 116 NENTRY(outsb) 117 pushl %esi 118 movl 8(%esp), %edx 119 movl 12(%esp), %esi 120 movl 16(%esp), %ecx 121 cld 122 rep 123 outsb 124 popl %esi 125 ret 126 127 NENTRY(outw) 128 movl 4(%esp), %edx 129 movl 8(%esp), %eax 130 outw %ax, %dx 131 ret 132 133 NENTRY(outsw) 134 pushl %esi 135 movl 8(%esp), %edx 136 movl 12(%esp), %esi 137 movl 16(%esp), %ecx 138 cld 139 rep 140 outsw 141 popl %esi 142 ret 143 144 NENTRY(outl) 145 movl 4(%esp), %edx 146 movl 8(%esp), %eax 147 outl %eax, %dx 148 ret 149 150 NENTRY(outsl) 151 pushl %esi 152 movl 8(%esp), %edx 153 movl 12(%esp), %esi 154 movl 16(%esp), %ecx 155 cld 156 rep 157 outsl 158 popl %esi 159 ret 160
Indexes created Wed Oct 22 13:09:56 GMT 2025