52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
// Emacs style mode select -*- C++ -*-
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// $Id:$
|
|
//
|
|
// Copyright (C) 1993-1996 by id Software, Inc.
|
|
//
|
|
// This source is available for distribution and/or modification
|
|
// only under the terms of the DOOM Source Code License as
|
|
// published by id Software. All rights reserved.
|
|
//
|
|
// The source is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
|
|
// for more details.
|
|
//
|
|
// DESCRIPTION:
|
|
// Fixed point arithemtics, implementation.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
#ifndef __M_FIXED__
|
|
#define __M_FIXED__
|
|
|
|
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
|
|
|
|
//
|
|
// Fixed point, 32bit as 16.16.
|
|
//
|
|
#define FRACBITS 16
|
|
#define FRACUNIT (1<<FRACBITS)
|
|
|
|
typedef int fixed_t;
|
|
|
|
fixed_t FixedMul (fixed_t a, fixed_t b);
|
|
fixed_t FixedDiv (fixed_t a, fixed_t b);
|
|
fixed_t FixedDiv2 (fixed_t a, fixed_t b);
|
|
|
|
|
|
|
|
#endif
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// $Log:$
|
|
//
|
|
//-----------------------------------------------------------------------------
|