sys/arch/hppa/spmath/hppa.h

   1 /*      $NetBSD$        */
   2
   3 /*      $OpenBSD: hppa.h,v 1.4 2001/03/29 03:58:18 mickey Exp $ */
   4
   5 /*
   6  * Copyright 1996 1995 by Open Software Foundation, Inc.
   7  *              All Rights Reserved
   8  *
   9  * Permission to use, copy, modify, and distribute this software and
  10  * its documentation for any purpose and without fee is hereby granted,
  11  * provided that the above copyright notice appears in all copies and
  12  * that both the copyright notice and this permission notice appear in
  13  * supporting documentation.
  14  *
  15  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
  16  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  17  * FOR A PARTICULAR PURPOSE.
  18  *
  19  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
  20  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  21  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
  22  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  23  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  24  */
  25 /*
  26  * pmk1.1
  27  */
  28 /*
  29  * (c) Copyright 1986 HEWLETT-PACKARD COMPANY
  30  *
  31  * To anyone who acknowledges that this file is provided "AS IS"
  32  * without any express or implied warranty:
  33  *     permission to use, copy, modify, and distribute this file
  34  * for any purpose is hereby granted without fee, provided that
  35  * the above copyright notice and this notice appears in all
  36  * copies, and that the name of Hewlett-Packard Company not be
  37  * used in advertising or publicity pertaining to distribution
  38  * of the software without specific, written prior permission.
  39  * Hewlett-Packard Company makes no representations about the
  40  * suitability of this software for any purpose.
  41  */
  42
  43 /* amount is assumed to be a constant between 0 and 32 (non-inclusive) */
  44 #define Shiftdouble(left,right,amount,dest)                     \
  45     /* int left, right, amount, dest; */                        \
  46     dest = ((left) << (32-(amount))) | ((unsigned int)(right) >> (amount))
  47
  48 /* amount must be less than 32 */
  49 #define Variableshiftdouble(left,right,amount,dest)             \
  50     /* unsigned int left, right;  int amount, dest; */          \
  51     if (amount == 0) dest = right;                              \
  52     else dest = ((((unsigned) left)&0x7fffffff) << (32-(amount))) |     \
  53         ((unsigned) right >> (amount))
  54
  55 /* amount must be between 0 and 32 (non-inclusive) */
  56 #define Variable_shift_double(left,right,amount,dest)           \
  57     /* unsigned int left, right;  int amount, dest; */          \
  58     dest = (left << (32-(amount))) | ((unsigned) right >> (amount))