The DOOM sources as originally released on December 23, 1997

linuxdoom-1.10/m_fixed.h

@@ -0,0 +1,51 @@
+// 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
+//-----------------------------------------------------------------------------
+//
+// $Log:$
+//
+//-----------------------------------------------------------------------------