xref: /illumos-gate/usr/src/lib/libc/i386/fp/fp.h (revision 1da57d55)

/*
 * 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) 1990, 1991 UNIX System Laboratories, Inc.	*/
/*	Copyright (c) 1988 AT&T	*/
/*	  All Rights Reserved  	*/

/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/* Useful asm routines and data types for grungy 87 hacking */

#define EXCPMASK (FP_X_INV|FP_X_DNML|FP_X_DZ|FP_X_OFL|FP_X_UFL|FP_X_IMP)

typedef short _envbuf87[7]; /* buffer for f{ld,st}env instruction       */
#define _swoff   1          /* status word index in _envbuf87           */
#define _swboff  2          /* status word BYTE offset in _envbuf87     */

extern void _getcw();
extern void _putcw();