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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                joystick.h                                 */
   4 /*                                                                           */
   5 /*               Read the joystick on systems that support it                */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2001 Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  12 /* EMail:        uz@musoftware.de                                            */
  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 _JOYSTICK_H
  37 #define _JOYSTICK_H
  38
  39
  40
  41 /* Define __JOYSTICK__ for systems that support a joystick */
  42 #if defined(__ATARI__) || defined(__C64__) || defined(__C128__) || defined(__PLUS4__) || defined(__CBM510__) || defined(__VIC20__)
  43 #  define __JOYSTICK__
  44 #else
  45 #  error The target system does not support a joystick!
  46 # endif
  47
  48 /* Argument for the function */
  49 #define JOY_1           0
  50 #define JOY_2           1
  51
  52 /* Result codes of the function. The actual code is a bitwise or
  53  * of one or more of the following values.
  54  */
  55 #if defined(__VIC20__)
  56 #  define JOY_UP        0x04
  57 #  define JOY_DOWN      0x08
  58 #  define JOY_LEFT      0x10
  59 #  define JOY_RIGHT     0x80
  60 #  define JOY_FIRE      0x20
  61 #else
  62 #  define JOY_UP        0x01
  63 #  define JOY_DOWN      0x02
  64 #  define JOY_LEFT      0x04
  65 #  define JOY_RIGHT     0x08
  66 #  define JOY_FIRE      0x10
  67 #endif
  68
  69
  70
  71 unsigned __fastcall__ readjoy (unsigned char joy);
  72 /* Read the joystick. The argument is one of JOY_1/JOY2 */
  73
  74
  75
  76 /* End of joystick.h */
  77 #endif
  78
  79
  80