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add/remove dynfpu/fpu support files

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2645
This commit is contained in:
Sebastian Strohhäcker 2006-06-01 15:45:37 +00:00
parent 3500ea88eb
commit 624686304e
2 changed files with 664 additions and 64 deletions
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64
src/fpu/fpu_types.h
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@ -1,64 +0,0 @@
/*
* Copyright (C) 2002-2006 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: fpu_types.h,v 1.13 2006-02-09 11:47:48 qbix79 Exp $ */
typedef union {
double d;
#ifndef WORDS_BIGENDIAN
struct {
Bit32u lower;
Bit32s upper;
} l;
#else
struct {
Bit32s upper;
Bit32u lower;
} l;
#endif
Bit64s ll;
} FPU_Reg;
typedef struct {
Bit32u m1;
Bit32u m2;
Bit16u m3;
Bit16u d1;
Bit32u d2;
} FPU_P_Reg;
enum FPU_Tag {
TAG_Valid = 0,
TAG_Zero = 1,
TAG_Weird = 2,
TAG_Empty = 3
};
enum FPU_Round {
ROUND_Nearest = 0,
ROUND_Down = 1,
ROUND_Up = 2,
ROUND_Chop = 3
};
//get pi from a real library
#define PI 3.14159265358979323846
#define L2E 1.4426950408889634
#define L2T 3.3219280948873623
#define LN2 0.69314718055994531
#define LG2 0.3010299956639812