/*	$OpenBSD: md.h,v 1.3 1998/07/02 19:05:35 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>

/*****************************************************************
 * 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

/*
 * Types
 */
typedef int VOID;
typedef int boolean;


/*
 *  Constants
 */

#undef FALSE
#define FALSE 0

#undef TRUE 
#define TRUE (!FALSE)

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

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

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

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