minix/sys/arch/i386/stand/lib/cpufunc.S
2012-02-09 18:48:13 +01:00

152 lines
2.8 KiB
ArmAsm

/* $NetBSD: cpufunc.S,v 1.4 2011/06/08 16:03:42 joerg Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <machine/asm.h>
NENTRY(x86_read_psl)
pushfl
popl %eax
ret
NENTRY(x86_write_psl)
movl 4(%esp), %eax
pushl %eax
popfl
ret
NENTRY(x86_disable_intr)
cli
ret
NENTRY(x86_enable_intr)
sti
ret
NENTRY(inb)
movl 4(%esp), %edx
xorl %eax, %eax
inb %dx, %al
ret
NENTRY(insb)
pushl %edi
movl 8(%esp), %edx
movl 12(%esp), %edi
movl 16(%esp), %ecx
cld
rep
insb
popl %edi
ret
NENTRY(inw)
movl 4(%esp), %edx
xorl %eax, %eax
inw %dx, %ax
ret
NENTRY(insw)
pushl %edi
movl 8(%esp), %edx
movl 12(%esp), %edi
movl 16(%esp), %ecx
cld
rep
insw
popl %edi
ret
NENTRY(inl)
movl 4(%esp), %edx
inl %dx, %eax
ret
NENTRY(insl)
pushl %edi
movl 8(%esp), %edx
movl 12(%esp), %edi
movl 16(%esp), %ecx
cld
rep
insl
popl %edi
ret
NENTRY(outb)
movl 4(%esp), %edx
movl 8(%esp), %eax
outb %al, %dx
ret
NENTRY(outsb)
pushl %esi
movl 8(%esp), %edx
movl 12(%esp), %esi
movl 16(%esp), %ecx
cld
rep
outsb
popl %esi
ret
NENTRY(outw)
movl 4(%esp), %edx
movl 8(%esp), %eax
outw %ax, %dx
ret
NENTRY(outsw)
pushl %esi
movl 8(%esp), %edx
movl 12(%esp), %esi
movl 16(%esp), %ecx
cld
rep
outsw
popl %esi
ret
NENTRY(outl)
movl 4(%esp), %edx
movl 8(%esp), %eax
outl %eax, %dx
ret
NENTRY(outsl)
pushl %esi
movl 8(%esp), %edx
movl 12(%esp), %esi
movl 16(%esp), %ecx
cld
rep
outsl
popl %esi
ret