xref: /src/sys/arch/hppa/spmath/hppa.h

/*	$NetBSD: hppa.h,v 1.1 2002/06/05 01:04:25 fredette Exp $	*/

/*	$OpenBSD: hppa.h,v 1.4 2001/03/29 03:58:18 mickey Exp $	*/

/*
 * Copyright 1996 1995 by Open Software Foundation, Inc.
 *              All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appears in all copies and
 * that both the copyright notice and this permission notice appear in
 * supporting documentation.
 *
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
/*
 * pmk1.1
 */
/*
 * (c) Copyright 1986 HEWLETT-PACKARD COMPANY
 *
 * To anyone who acknowledges that this file is provided "AS IS"
 * without any express or implied warranty:
 *     permission to use, copy, modify, and distribute this file
 * for any purpose is hereby granted without fee, provided that
 * the above copyright notice and this notice appears in all
 * copies, and that the name of Hewlett-Packard Company not be
 * used in advertising or publicity pertaining to distribution
 * of the software without specific, written prior permission.
 * Hewlett-Packard Company makes no representations about the
 * suitability of this software for any purpose.
 */

/* amount is assumed to be a constant between 0 and 32 (non-inclusive) */
#define Shiftdouble(left,right,amount,dest)			\
    /* int left, right, amount, dest; */			\
    dest = ((left) << (32-(amount))) | ((unsigned int)(right) >> (amount))

/* amount must be less than 32 */
#define Variableshiftdouble(left,right,amount,dest)		\
    /* unsigned int left, right;  int amount, dest; */		\
    if (amount == 0) dest = right;				\
    else dest = ((((unsigned) left)&0x7fffffff) << (32-(amount))) |	\
	((unsigned) right >> (amount))

/* amount must be between 0 and 32 (non-inclusive) */
#define Variable_shift_double(left,right,amount,dest)		\
    /* unsigned int left, right;  int amount, dest; */		\
    dest = (left << (32-(amount))) | ((unsigned) right >> (amount))