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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