/*      $NetBSD: md.h,v 1.4 2008/04/06 08:03:36 skrll Exp $     */

/*      $OpenBSD: md.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.
*/

#include <sys/cdefs.h>
#include <sys/types.h>

/*****************************************************************
* Muliply/Divide SFU Internal State                             *
*****************************************************************/
struct mdsfu_register {
   int rslt_hi,
       rslt_lo,
       ovflow;
   };

#define result_hi result->rslt_hi
#define result_lo result->rslt_lo
#define overflow result->ovflow

/*
*  Constants
*/

#undef NIL
#define NIL 0

#define WORD_LEN 32
#define BIT0 1<<31
#define BIT28 0x8
#define BIT29 0x4
#define BIT30 0x2
#define BIT31 0x1

       /* Simply copy the arguments to the emulated copies of the registers */
#define mdrr(reg1,reg2,result)  {result_hi = reg1;result_lo = reg2;}

/*
*  Structures
*/

struct md_state {
       int resulthi,   /* high word of result */
           resultlo;   /* low word of result */
};

void divsfm(int, int, struct mdsfu_register *);
void divsfr(int, int, struct mdsfu_register *);
void divsim(int, int, struct mdsfu_register *);
void divsir(int, int, struct mdsfu_register *);

void divu(int, int, int, struct mdsfu_register *);
void divufr(unsigned int, unsigned int, struct mdsfu_register *);
void divuir(unsigned int, unsigned int, struct mdsfu_register *);

void mpyaccs(int, int, struct mdsfu_register *);
void mpyaccu(unsigned int, unsigned int, struct mdsfu_register *);
void mpys(int, int, struct mdsfu_register *);
void mpyscv(int, int, struct mdsfu_register *);
void mpyu(unsigned int, unsigned int, struct mdsfu_register *);
void mpyucv(unsigned int, unsigned int, struct mdsfu_register *);

int impys(int *, int *, struct mdsfu_register *);
int impyu(int *, int *, struct mdsfu_register *);