git.sur5r.net Git - cc65/blob - include/cc65.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  cc65.h                                   */
   4 /*                                                                           */
   5 /*          Target independent but cc65 specific utility functions           */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2009,      Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  12 /* EMail:         uz@cc65.org                                                */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #ifndef _CC65_H
  37 #define _CC65_H
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                   Code                                    */
  43 /*****************************************************************************/
  44
  45
  46
  47 unsigned __fastcall__ cc65_umul8x8r16 (unsigned char lhs, unsigned char rhs);
  48 /* Multiplicate two unsigned 8 bit to yield an unsigned 16 bit result */
  49
  50 int __fastcall__ cc65_imul8x8r16 (signed char lhs, signed char rhs);
  51 /* Multiplicate two signed 8 bit to yield an signed 16 bit result */
  52
  53 unsigned long __fastcall__ cc65_umul16x16r32 (unsigned lhs, unsigned rhs);
  54 /* Multiplicate two unsigned 16 bit to yield an unsigned 32 bit result */
  55
  56 long __fastcall__ cc65_imul16x16r32 (int lhs, int rhs);
  57 /* Multiplicate two signed 16 bit to yield a signed 32 bit result */
  58
  59 int __fastcall__ cc65_sin (unsigned x);
  60 /* Return the sine of the argument, which must be in range 0..360. The result
  61  * is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
  62  */
  63
  64 int __fastcall__ cc65_cos (unsigned x);
  65 /* Return the cosine of the argument, which must be in range 0..360. The result
  66  * is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
  67  */
  68
  69
  70
  71 /* End of cc65.h */
  72 #endif
  73
  74
  75