/*-
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * William Jolitz.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
	.asciz "@(#)setjmp.s	8.1 (Berkeley) 06/04/93"
#endif /* LIBC_SCCS 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 stack.
 * The previous signal state is restored.
 */

#include "DEFS.h"

ENTRY(setjmp)
	pushl	$0
	call	_sigblock
	popl	%edx
	movl	4(%esp),%ecx 
	movl	0(%esp),%edx
	movl	%edx, 0(%ecx)
	movl	%ebx, 4(%ecx)
	movl	%esp, 8(%ecx)
	movl	%ebp,12(%ecx)
	movl	%esi,16(%ecx)
	movl	%edi,20(%ecx)
	movl	%eax,24(%ecx)
	movl	$0,%eax
	ret

ENTRY(longjmp)
	movl	4(%esp),%edx
	pushl	24(%edx)
	call	_sigsetmask
	popl	%eax
	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
	cmpl	$0,%eax
	jne	1f
	movl	$1,%eax
1:	movl	%ecx,0(%esp)
	ret