85 lines
2.8 KiB
ArmAsm
85 lines
2.8 KiB
ArmAsm
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* $Id: _setjmp.S,v 1.6 1997/02/22 14:58:34 peter Exp $
|
|
*/
|
|
|
|
#if defined(LIBC_RCS) && !defined(lint)
|
|
.text
|
|
.asciz "$Id: _setjmp.S,v 1.6 1997/02/22 14:58:34 peter Exp $"
|
|
#endif /* LIBC_RCS and not lint */
|
|
|
|
/*
|
|
* C library -- _setjmp, _longjmp
|
|
*
|
|
* _longjmp(a,v)
|
|
* will generate a "return(v)" from the last call to
|
|
* _setjmp(a)
|
|
* by restoring registers from the environment 'a'.
|
|
* The previous signal state is NOT restored.
|
|
*/
|
|
|
|
#include "DEFS.h"
|
|
|
|
ENTRY(_setjmp)
|
|
movl 4(%esp),%eax
|
|
movl 0(%esp),%edx
|
|
movl %edx, 0(%eax) /* rta */
|
|
movl %ebx, 4(%eax)
|
|
movl %esp, 8(%eax)
|
|
movl %ebp,12(%eax)
|
|
movl %esi,16(%eax)
|
|
movl %edi,20(%eax)
|
|
fnstcw 28(%eax)
|
|
xorl %eax,%eax
|
|
ret
|
|
|
|
ENTRY(_longjmp)
|
|
movl 4(%esp),%edx
|
|
movl 8(%esp),%eax
|
|
movl 0(%edx),%ecx
|
|
movl 4(%edx),%ebx
|
|
movl 8(%edx),%esp
|
|
movl 12(%edx),%ebp
|
|
movl 16(%edx),%esi
|
|
movl 20(%edx),%edi
|
|
fninit
|
|
fldcw 28(%edx)
|
|
testl %eax,%eax
|
|
jnz 1f
|
|
incl %eax
|
|
1: movl %ecx,0(%esp)
|
|
ret
|