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/*-
* Copyright (c) 2002 Peter Grehan.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $ */
#include <machine/asm.h>
/*
* C library -- _setjmp, _longjmp
*
* _longjmp(a,v)
* will generate a "return(v?v:1)" from the last call to
* _setjmp(a)
* by restoring registers from the stack.
* The previous signal state is NOT restored.
*
* jmpbuf layout:
* +------------+
* | unused |
* +------------+
* | unused |
* | |
* | (4 words) |
* | |
* +------------+
* | saved regs |
* | ... |
*/
ENTRY(_setjmp)
mflr %r11
mfcr %r12
mr %r10,%r1
mr %r9,%r2
stmw %r9,20(%r3)
/* FPRs */
stfd %f14,112+0*8(%r3)
stfd %f15,112+1*8(%r3)
stfd %f16,112+2*8(%r3)
stfd %f17,112+3*8(%r3)
stfd %f18,112+4*8(%r3)
stfd %f19,112+5*8(%r3)
stfd %f20,112+6*8(%r3)
stfd %f21,112+7*8(%r3)
stfd %f22,112+8*8(%r3)
stfd %f23,112+9*8(%r3)
stfd %f24,112+10*8(%r3)
stfd %f25,112+11*8(%r3)
stfd %f26,112+12*8(%r3)
stfd %f27,112+13*8(%r3)
stfd %f28,112+14*8(%r3)
stfd %f29,112+15*8(%r3)
stfd %f30,112+16*8(%r3)
stfd %f31,112+17*8(%r3)
li %r3,0
blr
END(_setjmp)
ENTRY(_longjmp)
lmw %r9,20(%r3)
/* FPRs */
lfd %f14,112+0*8(%r3)
lfd %f15,112+1*8(%r3)
lfd %f16,112+2*8(%r3)
lfd %f17,112+3*8(%r3)
lfd %f18,112+4*8(%r3)
lfd %f19,112+5*8(%r3)
lfd %f20,112+6*8(%r3)
lfd %f21,112+7*8(%r3)
lfd %f22,112+8*8(%r3)
lfd %f23,112+9*8(%r3)
lfd %f24,112+10*8(%r3)
lfd %f25,112+11*8(%r3)
lfd %f26,112+12*8(%r3)
lfd %f27,112+13*8(%r3)
lfd %f28,112+14*8(%r3)
lfd %f29,112+15*8(%r3)
lfd %f30,112+16*8(%r3)
lfd %f31,112+17*8(%r3)
mtlr %r11
mtcr %r12
mr %r1,%r10
or. %r3,%r4,%r4
bnelr
li %r3,1
blr
END(_longjmp)
.section .note.GNU-stack,"",%progbits
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