83 lines
2.4 KiB
ArmAsm
83 lines
2.4 KiB
ArmAsm
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;/*
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; * C library -- _setjmp, _longjmp
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; *
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; * _longjmp(a,v)
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; * will generate a "return(v?v:1)" from
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; * the last call to
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; * _setjmp(a)
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; * by unwinding the call stack.
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; * The previous signal state is NOT restored.
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; *
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; *
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; * Copyright (c) 2003 Altera Corporation
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; * All rights reserved.
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; *
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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
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; * are met:
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; *
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; * o Redistributions of source code must retain the above copyright
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; * notice, this list of conditions and the following disclaimer.
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; * o 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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; * o Neither the name of Altera Corporation nor the names of its
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; * contributors may be used to endorse or promote products derived from
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; * this software without specific prior written permission.
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; *
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; * THIS SOFTWARE IS PROVIDED BY ALTERA CORPORATION, THE COPYRIGHT HOLDER,
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; * AND ITS CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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; * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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; * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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; * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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; * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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; * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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; * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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; * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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; * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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; * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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; */
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.section .text
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.align 3
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.globl setjmp
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.type setjmp,@function
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.globl longjmp
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.type longjmp,@function
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setjmp:
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stw r16, 0(r4)
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stw r17, 4(r4)
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stw r18, 8(r4)
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stw r19, 12(r4)
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stw r20, 16(r4)
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stw r21, 20(r4)
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stw r22, 24(r4)
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stw r23, 28(r4)
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stw gp, 32(r4)
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stw sp, 36(r4)
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stw fp, 40(r4)
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stw ra, 44(r4)
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mov r2, zero
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ret
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longjmp:
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ldw r16, 0(r4)
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ldw r17, 4(r4)
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ldw r18, 8(r4)
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ldw r19, 12(r4)
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ldw r20, 16(r4)
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ldw r21, 20(r4)
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ldw r22, 24(r4)
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ldw r23, 28(r4)
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ldw gp, 32(r4)
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ldw sp, 36(r4)
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ldw fp, 40(r4)
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ldw ra, 44(r4)
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mov r2, r5
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bne r2, zero, 1f
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movi r2, 1
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1:
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ret
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