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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [newlib/] [libc/] [machine/] [microblaze/] [longjmp.S] - Blame information for rev 802

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1 207 jeremybenn 
/* Copyright (c) 2001, 2009 Xilinx, Inc.  All rights reserved.
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   Redistribution and use in source and binary forms, with or without
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   modification, are permitted provided that the following conditions are
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   met:
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   1.  Redistributions source code must retain the above copyright notice,
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   this list of conditions and the following disclaimer.
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   2.  Redistributions in binary form must reproduce the above copyright
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   notice, this list of conditions and the following disclaimer in the
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   documentation and/or other materials provided with the distribution.
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   3.  Neither the name of Xilinx nor the names of its contributors may be
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   used to endorse or promote products derived from this software without
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   specific prior written permission.
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   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
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   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * longjmp - non-local jump to a saved stack context
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 * args    - r5 - jmp_buf
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 *           r6 - val
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 *
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 * jmpbuf frame structure
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 * ---------------------
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 *
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 *      +-------------+         + 0
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 *      |     r1      |
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 *      +-------------+         + 4
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 *      |     r13     |
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 *      |      .      |
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 *      |      .      |
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 *      |      .      |
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 *      |     r31     |
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 *      +-------------+         + 80
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 *      |      .      |
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 *      |      .      |
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 */
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.globl longjmp
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.section .text
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.align 2
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.ent longjmp
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longjmp:
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    lwi     r1, r5, 0
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    lwi     r13, r5, 4
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    lwi     r14, r5, 8
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    lwi     r15, r5, 12
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    lwi     r16, r5, 16
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    lwi     r17, r5, 20
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    lwi     r18, r5, 24
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    lwi     r19, r5, 28
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    lwi     r20, r5, 32
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    lwi     r21, r5, 36
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    lwi     r22, r5, 40
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    lwi     r23, r5, 44
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    lwi     r24, r5, 48
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    lwi     r25, r5, 52
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    lwi     r26, r5, 56
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    lwi     r27, r5, 60
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    lwi     r28, r5, 64
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    lwi     r29, r5, 68
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    lwi     r30, r5, 72
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    lwi     r31, r5, 76
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    rtsd    r15, 8
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    or      r3, r0, r6
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.end longjmp

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