| 1 | /* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. |
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| 2 | |
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| 3 | Redistribution and use in source and binary forms, with or without |
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| 4 | modification, are permitted provided that the following conditions are |
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| 5 | met: |
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| 6 | |
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| 7 | 1. Redistributions source code must retain the above copyright notice, |
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| 8 | this list of conditions and the following disclaimer. |
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| 9 | |
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| 10 | 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | notice, this list of conditions and the following disclaimer in the |
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| 12 | documentation and/or other materials provided with the distribution. |
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| 13 | |
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| 14 | 3. Neither the name of Xilinx nor the names of its contributors may be |
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| 15 | used to endorse or promote products derived from this software without |
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| 16 | specific prior written permission. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS |
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| 19 | IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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| 20 | TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
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| 21 | PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 22 | HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 23 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
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| 24 | TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 25 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 26 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 27 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 28 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 29 | |
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| 30 | * |
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| 31 | * longjmp - non-local jump to a saved stack context |
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| 32 | * args - r5 - jmp_buf |
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| 33 | * r6 - val |
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| 34 | * |
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| 35 | * jmpbuf frame structure |
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| 36 | * --------------------- |
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| 37 | * |
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| 38 | * +-------------+ + 0 |
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| 39 | * | r1 | |
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| 40 | * +-------------+ + 4 |
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| 41 | * | r13 | |
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| 42 | * | . | |
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| 43 | * | . | |
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| 44 | * | . | |
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| 45 | * | r31 | |
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| 46 | * +-------------+ + 80 |
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| 47 | * | . | |
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| 48 | * | . | |
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| 49 | */ |
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| 50 | |
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| 51 | |
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| 52 | .globl longjmp |
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| 53 | .section .text |
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| 54 | .align 2 |
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| 55 | .ent longjmp |
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| 56 | longjmp: |
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| 57 | lwi r1, r5, 0 |
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| 58 | lwi r13, r5, 4 |
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| 59 | lwi r14, r5, 8 |
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| 60 | lwi r15, r5, 12 |
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| 61 | lwi r16, r5, 16 |
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| 62 | lwi r17, r5, 20 |
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| 63 | lwi r18, r5, 24 |
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| 64 | lwi r19, r5, 28 |
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| 65 | lwi r20, r5, 32 |
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| 66 | lwi r21, r5, 36 |
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| 67 | lwi r22, r5, 40 |
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| 68 | lwi r23, r5, 44 |
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| 69 | lwi r24, r5, 48 |
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| 70 | lwi r25, r5, 52 |
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| 71 | lwi r26, r5, 56 |
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| 72 | lwi r27, r5, 60 |
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| 73 | lwi r28, r5, 64 |
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| 74 | lwi r29, r5, 68 |
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| 75 | lwi r30, r5, 72 |
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| 76 | lwi r31, r5, 76 |
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| 77 | |
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| 78 | rtsd r15, 8 |
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| 79 | or r3, r0, r6 |
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| 80 | .end longjmp |
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