1/*	$NetBSD: cpufunc.S,v 1.3 2008/10/22 08:42:38 ad 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <machine/asm.h>
33
34NENTRY(x86_read_psl)
35	pushfl
36	popl	%eax
37	ret
38
39NENTRY(x86_write_psl)
40	movl	4(%esp), %eax
41	pushl	%eax
42	popfl
43	ret
44
45NENTRY(x86_disable_intr)
46	cli
47	ret
48
49NENTRY(x86_enable_intr)
50	sti
51	ret
52
53NENTRY(inb)
54	movl	4(%esp), %edx
55	xorl	%eax, %eax
56	inb	%dx, %al
57	ret
58
59NENTRY(insb)
60	pushl	%edi
61	movl	8(%esp), %edx
62	movl	12(%esp), %edi
63	movl	16(%esp), %ecx
64	cld
65	rep
66	insb
67	popl	%edi
68	ret
69
70NENTRY(inw)
71	movl	4(%esp), %edx
72	xorl	%eax, %eax
73	inw	%dx, %ax
74	ret
75
76NENTRY(insw)
77	pushl	%edi
78	movl	8(%esp), %edx
79	movl	12(%esp), %edi
80	movl	16(%esp), %ecx
81	cld
82	rep
83	insw
84	popl	%edi
85	ret
86
87NENTRY(inl)
88	movl	4(%esp), %edx
89	inl	%dx, %eax
90	ret
91
92NENTRY(insl)
93	pushl	%edi
94	movl	8(%esp), %edx
95	movl	12(%esp), %edi
96	movl	16(%esp), %ecx
97	cld
98	rep
99	insl
100	popl	%edi
101	ret
102
103NENTRY(outb)
104	movl	4(%esp), %edx
105	movl	8(%esp), %eax
106	outb	%al, %dx
107	ret
108
109NENTRY(outsb)
110	pushl	%esi
111	movl	8(%esp), %edx
112	movl	12(%esp), %esi
113	movl	16(%esp), %ecx
114	cld
115	rep
116	outsb
117	popl	%esi
118	ret
119
120NENTRY(outw)
121	movl	4(%esp), %edx
122	movl	8(%esp), %eax
123	outw	%ax, %dx
124	ret
125
126NENTRY(outsw)
127	pushl	%esi
128	movl	8(%esp), %edx
129	movl	12(%esp), %esi
130	movl	16(%esp), %ecx
131	cld
132	rep
133	outsw
134	popl	%esi
135	ret
136
137NENTRY(outl)
138	movl	4(%esp), %edx
139	movl	8(%esp), %eax
140	outl	%eax, %dx
141	ret
142
143NENTRY(outsl)
144	pushl	%esi
145	movl	8(%esp), %edx
146	movl	12(%esp), %esi
147	movl	16(%esp), %ecx
148	cld
149	rep
150	outsl
151	popl	%esi
152	ret
153