source: mainline/uspace/lib/c/arch/mips32/src/fibril.S@ 8df9290

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8df9290 was 8df9290, checked in by Martin Decky <martin@…>, 13 years ago

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[29a9f62]1#
[df4ed85]2# Copyright (c) 2003-2004 Jakub Jermar
[29a9f62]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
29.text
30
31.set noat
32.set noreorder
33
[c0699467]34#include <libarch/context_offset.h>
[8df9290]35
[29a9f62]36.global context_save
37.global context_restore
[8df9290]38
[29a9f62]39context_save:
[308cdd1]40 CONTEXT_SAVE_ARCH_CORE $a0
[8df9290]41
[29a9f62]42 # context_save returns 1
43 j $ra
[8df9290]44 li $v0, 1
45
[29a9f62]46context_restore:
[308cdd1]47 CONTEXT_RESTORE_ARCH_CORE $a0
[8df9290]48
[a71d9af9]49 # Just for the jump into first function, but one instruction
50 # should not bother us
[8df9290]51 move $t9, $ra
52
[29a9f62]53 # context_restore returns 0
54 j $ra
[8df9290]55 xor $v0, $v0
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