1 /* $NetBSD: md.h,v 1.4 2008/04/06 08:03:36 skrll 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 *); 104