1 /* $NetBSD: md.h,v 1.1 2002/06/05 01:04:26 fredette 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 46 /***************************************************************** 47 * Muliply/Divide SFU Internal State * 48 *****************************************************************/ 49 struct mdsfu_register { 50 int rslt_hi, 51 rslt_lo, 52 ovflow; 53 }; 54 55 #define result_hi result->rslt_hi 56 #define result_lo result->rslt_lo 57 #define overflow result->ovflow 58 59 /* 60 * Constants 61 */ 62 63 #undef FALSE 64 #define FALSE 0 65 66 #undef TRUE 67 #define TRUE (!FALSE) 68 69 #undef NIL 70 #define NIL 0 71 72 #define WORD_LEN 32 73 #define BIT0 1<<31 74 #define BIT28 0x8 75 #define BIT29 0x4 76 #define BIT30 0x2 77 #define BIT31 0x1 78 79 /* Simply copy the arguments to the emulated copies of the registers */ 80 #define mdrr(reg1,reg2,result) {result_hi = reg1;result_lo = reg2;} 81 82 /* 83 * Structures 84 */ 85 86 struct md_state { 87 int resulthi, /* high word of result */ 88 resultlo; /* low word of result */ 89 }; 90 91 void divsfm __P((int, int, struct mdsfu_register *)); 92 void divsfr __P((int, int, struct mdsfu_register *)); 93 void divsim __P((int, int, struct mdsfu_register *)); 94 void divsir __P((int, int, struct mdsfu_register *)); 95 96 void divu __P((int, int, int, struct mdsfu_register *)); 97 void divufr __P((unsigned int, unsigned int, struct mdsfu_register *)); 98 void divuir __P((unsigned int, unsigned int, struct mdsfu_register *)); 99 100 void mpyaccs __P((int, int, struct mdsfu_register *)); 101 void mpyaccu __P((unsigned int, unsigned int, struct mdsfu_register *)); 102 void mpys __P((int, int, struct mdsfu_register *)); 103 void mpyscv __P((int, int, struct mdsfu_register *)); 104 void mpyu __P((unsigned int, unsigned int, struct mdsfu_register *)); 105 void mpyucv __P((unsigned int, unsigned int, struct mdsfu_register *)); 106 107 int impys __P((int *, int *, struct mdsfu_register *)); 108 int impyu __P((int *, int *, struct mdsfu_register *)); 109