git.sur5r.net Git - cc65/blob - src/common/mmodel.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 mmodel.h                                  */
   4 /*                                                                           */
   5 /*                         Memory model definitions                          */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003      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 MMODEL_H
  37 #define MMODEL_H
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                   Data                                    */
  43 /*****************************************************************************/
  44
  45
  46
  47 /* Memory models */
  48 typedef enum {
  49     MMODEL_UNKNOWN  = -1,
  50     MMODEL_NEAR,                /* Code: near, data: near */
  51     MMODEL_FAR,                 /* Code: far, data: near */
  52     MMODEL_HUGE,                /* Code: far, data: far */
  53     MMODEL_COUNT                /* Number of memory models */
  54 } mmodel_t;
  55
  56 /* Memory model in use */
  57 extern mmodel_t MemoryModel;
  58
  59 /* Address sizes for the segments */
  60 extern unsigned char CodeAddrSize;
  61 extern unsigned char DataAddrSize;
  62 extern unsigned char ZpAddrSize;
  63
  64
  65
  66 /*****************************************************************************/
  67 /*                                   Code                                    */
  68 /*****************************************************************************/
  69
  70
  71
  72 mmodel_t FindMemoryModel (const char* Name);
  73 /* Find a memory model by name. Return MMODEL_UNKNOWN for an unknown name. */
  74
  75 void SetMemoryModel (mmodel_t Model);
  76 /* Set the memory model updating the MemoryModel variables and the address
  77 ** sizes for the segments.
  78 */
  79
  80
  81
  82 /* End of mmodel.h */
  83
  84 #endif