lsign.s revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/* Copyright (c) 1989 by Sun Microsystems, Inc. */
.ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
/*
* Determine the sign of a double-long number.
* Ported from m32 version to sparc.
*
* int
* lsign (op)
* dl_t op;
*/
.file "lsign.s"
#include <sys/asm_linkage.h>
ANSI_PRAGMA_WEAK(lsign,function)
#include "synonyms.h"
ENTRY(lsign)
ld [%o0],%o0 ! fetch op (high word only)
jmp %o7+8 ! return
srl %o0,31,%o0 ! shift letf logical to isolate sign
SET_SIZE(lsign)