sys/arch/hppa/spmath/md.h

   1 /*      $NetBSD: md.h,v 1.3 2005/12/11 12:17:40 christos Exp $  */
   2
   3 /*      $OpenBSD: md.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 /*
  27  * pmk1.1
  28  */
  29 /*
  30  * (c) Copyright 1986 HEWLETT-PACKARD COMPANY
  31  *
  32  * To anyone who acknowledges that this file is provided "AS IS"
  33  * without any express or implied warranty:
  34  *     permission to use, copy, modify, and distribute this file
  35  * for any purpose is hereby granted without fee, provided that
  36  * the above copyright notice and this notice appears in all
  37  * copies, and that the name of Hewlett-Packard Company not be
  38  * used in advertising or publicity pertaining to distribution
  39  * of the software without specific, written prior permission.
  40  * Hewlett-Packard Company makes no representations about the
  41  * suitability of this software for any purpose.
  42  */
  43
  44 #include <sys/cdefs.h>
  45 #include <sys/types.h>
  46
  47 /*****************************************************************
  48  * Muliply/Divide SFU Internal State                             *
  49  *****************************************************************/
  50 struct mdsfu_register {
  51     int rslt_hi,
  52         rslt_lo,
  53         ovflow;
  54     };
  55
  56 #define result_hi result->rslt_hi
  57 #define result_lo result->rslt_lo
  58 #define overflow result->ovflow
  59
  60 /*
  61  *  Constants
  62  */
  63
  64 #undef NIL
  65 #define NIL 0
  66
  67 #define WORD_LEN 32
  68 #define BIT0 1<<31
  69 #define BIT28 0x8
  70 #define BIT29 0x4
  71 #define BIT30 0x2
  72 #define BIT31 0x1
  73
  74         /* Simply copy the arguments to the emulated copies of the registers */
  75 #define mdrr(reg1,reg2,result)  {result_hi = reg1;result_lo = reg2;}
  76
  77 /*
  78  *  Structures
  79  */
  80
  81 struct md_state {
  82         int resulthi,   /* high word of result */
  83             resultlo;   /* low word of result */
  84 };
  85
  86 void divsfm(int, int, struct mdsfu_register *);
  87 void divsfr(int, int, struct mdsfu_register *);
  88 void divsim(int, int, struct mdsfu_register *);
  89 void divsir(int, int, struct mdsfu_register *);
  90
  91 void divu(int, int, int, struct mdsfu_register *);
  92 void divufr(unsigned int, unsigned int, struct mdsfu_register *);
  93 void divuir(unsigned int, unsigned int, struct mdsfu_register *);
  94
  95 void mpyaccs(int, int, struct mdsfu_register *);
  96 void mpyaccu(unsigned int, unsigned int, struct mdsfu_register *);
  97 void mpys(int, int, struct mdsfu_register *);
  98 void mpyscv(int, int, struct mdsfu_register *);
  99 void mpyu(unsigned int, unsigned int, struct mdsfu_register *);
 100 void mpyucv(unsigned int, unsigned int, struct mdsfu_register *);
 101
 102 int impys(int *, int *, struct mdsfu_register *);
 103 int impyu(int *, int *, struct mdsfu_register *);