source: mainline/kernel/arch/mips32/src/context.S@ 30885b9

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 30885b9 was 308cdd1, checked in by Josef Cejka <malyzelenyhnus@…>, 17 years ago

Context saving/restoring macros used for mips32.

  • Property mode set to 100644
File size: 1.7 KB
RevLine 
[f761f1eb]1#
[df4ed85]2# Copyright (c) 2003-2004 Jakub Jermar
[f761f1eb]3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28
[909c6e3]29#include <arch/context_offset.h>
[e84439a]30
[f761f1eb]31.text
32
33.set noat
34.set noreorder
35.set nomacro
36
[4b2c872d]37.global context_save_arch
38.global context_restore_arch
[f761f1eb]39
[e84439a]40
[4b2c872d]41context_save_arch:
[308cdd1]42 CONTEXT_SAVE_ARCH_CORE $a0
[f761f1eb]43
44 # context_save returns 1
45 j $31
46 li $2, 1
47
[4b2c872d]48context_restore_arch:
[308cdd1]49 CONTEXT_RESTORE_ARCH_CORE $a0
[f761f1eb]50
51 # context_restore returns 0
52 j $31
53 xor $2, $2
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