109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/* $NetBSD: md.h,v 1.1 2002/06/05 01:04:26 fredette Exp $ */
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/* $OpenBSD: md.h,v 1.4 2001/03/29 03:58:18 mickey Exp $ */
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/*
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* Copyright 1996 1995 by Open Software Foundation, Inc.
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation.
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*
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* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/*
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* pmk1.1
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*/
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/*
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* (c) Copyright 1986 HEWLETT-PACKARD COMPANY
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*
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* To anyone who acknowledges that this file is provided "AS IS"
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* without any express or implied warranty:
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* permission to use, copy, modify, and distribute this file
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* for any purpose is hereby granted without fee, provided that
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* the above copyright notice and this notice appears in all
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* copies, and that the name of Hewlett-Packard Company not be
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* used in advertising or publicity pertaining to distribution
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* of the software without specific, written prior permission.
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* Hewlett-Packard Company makes no representations about the
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* suitability of this software for any purpose.
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*/
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#include <sys/cdefs.h>
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/*****************************************************************
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* Muliply/Divide SFU Internal State *
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*****************************************************************/
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struct mdsfu_register {
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int rslt_hi,
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rslt_lo,
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ovflow;
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};
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#define result_hi result->rslt_hi
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#define result_lo result->rslt_lo
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#define overflow result->ovflow
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/*
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* Constants
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*/
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#undef FALSE
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#define FALSE 0
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#undef TRUE
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#define TRUE (!FALSE)
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#undef NIL
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#define NIL 0
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#define WORD_LEN 32
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#define BIT0 1<<31
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#define BIT28 0x8
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#define BIT29 0x4
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#define BIT30 0x2
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#define BIT31 0x1
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/* Simply copy the arguments to the emulated copies of the registers */
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#define mdrr(reg1,reg2,result) {result_hi = reg1;result_lo = reg2;}
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/*
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* Structures
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*/
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struct md_state {
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int resulthi, /* high word of result */
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resultlo; /* low word of result */
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};
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void divsfm __P((int, int, struct mdsfu_register *));
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void divsfr __P((int, int, struct mdsfu_register *));
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void divsim __P((int, int, struct mdsfu_register *));
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void divsir __P((int, int, struct mdsfu_register *));
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void divu __P((int, int, int, struct mdsfu_register *));
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void divufr __P((unsigned int, unsigned int, struct mdsfu_register *));
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void divuir __P((unsigned int, unsigned int, struct mdsfu_register *));
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void mpyaccs __P((int, int, struct mdsfu_register *));
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void mpyaccu __P((unsigned int, unsigned int, struct mdsfu_register *));
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void mpys __P((int, int, struct mdsfu_register *));
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void mpyscv __P((int, int, struct mdsfu_register *));
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void mpyu __P((unsigned int, unsigned int, struct mdsfu_register *));
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void mpyucv __P((unsigned int, unsigned int, struct mdsfu_register *));
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int impys __P((int *, int *, struct mdsfu_register *));
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int impyu __P((int *, int *, struct mdsfu_register *));
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