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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                peekpoke.h                                 */
   4 /*                                                                           */
   5 /*     PEEK and POKE macros for those who want to write BASIC code in C      */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003      Ullrich von Bassewitz                                       */
  10 /*               Römerstrasse 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 _PEEKPOKE_H
  37 #define _PEEKPOKE_H
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                  Macros                                   */
  43 /*****************************************************************************/
  44
  45
  46
  47 #define POKE(addr,val)     (*(unsigned char*) (addr) = (val))
  48 #define POKEW(addr,val)    (*(unsigned*) (addr) = (val))
  49 #define PEEK(addr)         (*(unsigned char*) (addr))
  50 #define PEEKW(addr)        (*(unsigned*) (addr))
  51
  52
  53
  54 /* End of peekpoke.h */
  55 #endif
  56
  57
  58