| 1 | ;/* |
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| 2 | ; * C library -- _setjmp, _longjmp |
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| 3 | ; * |
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| 4 | ; * _longjmp(a,v) |
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| 5 | ; * will generate a "return(v?v:1)" from |
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| 6 | ; * the last call to |
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| 7 | ; * _setjmp(a) |
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| 8 | ; * by unwinding the call stack. |
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| 9 | ; * The previous signal state is NOT restored. |
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| 10 | ; * |
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| 11 | ; * |
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| 12 | ; * Copyright (c) 2003 Altera Corporation |
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| 13 | ; * All rights reserved. |
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| 14 | ; * |
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| 15 | ; * Redistribution and use in source and binary forms, with or without |
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| 16 | ; * modification, are permitted provided that the following conditions |
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| 17 | ; * are met: |
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| 18 | ; * |
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| 19 | ; * o Redistributions of source code must retain the above copyright |
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| 20 | ; * notice, this list of conditions and the following disclaimer. |
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| 21 | ; * o Redistributions in binary form must reproduce the above copyright |
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| 22 | ; * notice, this list of conditions and the following disclaimer in the |
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| 23 | ; * documentation and/or other materials provided with the distribution. |
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| 24 | ; * o Neither the name of Altera Corporation nor the names of its |
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| 25 | ; * contributors may be used to endorse or promote products derived from |
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| 26 | ; * this software without specific prior written permission. |
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| 27 | ; * |
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| 28 | ; * THIS SOFTWARE IS PROVIDED BY ALTERA CORPORATION, THE COPYRIGHT HOLDER, |
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| 29 | ; * AND ITS CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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| 30 | ; * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
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| 31 | ; * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
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| 32 | ; * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 33 | ; * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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| 34 | ; * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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| 35 | ; * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 36 | ; * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
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| 37 | ; * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
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| 38 | ; * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 39 | ; */ |
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| 40 | |
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| 41 | .section .text |
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| 42 | .align 3 |
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| 43 | .globl setjmp |
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| 44 | .type setjmp,@function |
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| 45 | .globl longjmp |
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| 46 | .type longjmp,@function |
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| 47 | |
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| 48 | |
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| 49 | setjmp: |
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| 50 | stw r16, 0(r4) |
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| 51 | stw r17, 4(r4) |
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| 52 | stw r18, 8(r4) |
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| 53 | stw r19, 12(r4) |
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| 54 | stw r20, 16(r4) |
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| 55 | stw r21, 20(r4) |
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| 56 | stw r22, 24(r4) |
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| 57 | stw r23, 28(r4) |
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| 58 | stw gp, 32(r4) |
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| 59 | stw sp, 36(r4) |
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| 60 | stw fp, 40(r4) |
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| 61 | stw ra, 44(r4) |
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| 62 | mov r2, zero |
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| 63 | ret |
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| 64 | |
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| 65 | longjmp: |
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| 66 | ldw r16, 0(r4) |
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| 67 | ldw r17, 4(r4) |
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| 68 | ldw r18, 8(r4) |
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| 69 | ldw r19, 12(r4) |
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| 70 | ldw r20, 16(r4) |
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| 71 | ldw r21, 20(r4) |
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| 72 | ldw r22, 24(r4) |
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| 73 | ldw r23, 28(r4) |
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| 74 | ldw gp, 32(r4) |
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| 75 | ldw sp, 36(r4) |
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| 76 | ldw fp, 40(r4) |
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| 77 | ldw ra, 44(r4) |
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| 78 | mov r2, r5 |
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| 79 | bne r2, zero, 1f |
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| 80 | movi r2, 1 |
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| 81 | 1: |
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| 82 | ret |
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