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