/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
*
* File: sys/ppc/setjmp.s
*
* Implements sigsetjmp(), setjmp(), _setjmp()
*
* NOTE: Scatterloading this file will BREAK the functions.
*
* History:
* 30-Aug-1998 Umesh Vaishampayan (umeshv@apple.com)
* Created. Derived from _setjmp.s, setjmp.c and setjmp.s
*/
#include "SYS.h"
#include <architecture/ppc/asm_help.h>
#include "_setjmp.h"
/*
* setjmp routines
*/
/* int sigsetjmp(sigjmp_buf env, int savemask)LEAF(_sigsetjmp)
cmpwi cr1,r4,0 beq- cr1, L__setjmp
/* int setjmp(jmp_buf env)LEAF(_setjmp)
L_setjmp:
mflr r0
stw r31, JMP_r31(r3)
stw r0, JMP_lr(r3)
mr r31, r3
li r3, 0 stw r3, JMP_sig(r31) lwz r0, JMP_lr(r3)
mtlr r0
lwz r31, JMP_r31(r3)
L__setjmp:
BRANCH_EXTERN(__setjmp)