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 *****************************************************************/
50struct 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
81struct md_state {
82	int resulthi,	/* high word of result */
83	    resultlo;	/* low word of result */
84};
85
86void divsfm(int, int, struct mdsfu_register *);
87void divsfr(int, int, struct mdsfu_register *);
88void divsim(int, int, struct mdsfu_register *);
89void divsir(int, int, struct mdsfu_register *);
90
91void divu(int, int, int, struct mdsfu_register *);
92void divufr(unsigned int, unsigned int, struct mdsfu_register *);
93void divuir(unsigned int, unsigned int, struct mdsfu_register *);
94
95void mpyaccs(int, int, struct mdsfu_register *);
96void mpyaccu(unsigned int, unsigned int, struct mdsfu_register *);
97void mpys(int, int, struct mdsfu_register *);
98void mpyscv(int, int, struct mdsfu_register *);
99void mpyu(unsigned int, unsigned int, struct mdsfu_register *);
100void mpyucv(unsigned int, unsigned int, struct mdsfu_register *);
101
102int impys(int *, int *, struct mdsfu_register *);
103int impyu(int *, int *, struct mdsfu_register *);
104