git.sur5r.net Git - cc65/blob - src/common/addrsize.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                addrsize.c                                 */
   4 /*                                                                           */
   5 /*                         Address size definitions                          */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003-2009, 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 /* common */
  37 #include "addrsize.h"
  38 #include "strutil.h"
  39
  40
  41
  42 /*****************************************************************************/
  43 /*                                   Code                                    */
  44 /*****************************************************************************/
  45
  46
  47
  48 const char* AddrSizeToStr (unsigned char AddrSize)
  49 /* Return the name for an address size specifier */
  50 {
  51     switch (AddrSize) {
  52         case ADDR_SIZE_DEFAULT:         return "default";
  53         case ADDR_SIZE_ZP:              return "zeropage";
  54         case ADDR_SIZE_ABS:             return "absolute";
  55         case ADDR_SIZE_FAR:             return "far";
  56         case ADDR_SIZE_LONG:            return "long";
  57         default:                        return "unknown";
  58     }
  59 }
  60
  61
  62
  63 unsigned char AddrSizeFromStr (const char* Str)
  64 /* Return the address size for a given string. Returns ADDR_SIZE_INVALID if
  65  * the string cannot be mapped to an address size.
  66  */
  67 {
  68     static const struct {
  69         const char*     Name;
  70         unsigned char   AddrSize;
  71     } AddrSizeTable[] = {
  72         { "abs",        ADDR_SIZE_ABS     },
  73         { "absolute",   ADDR_SIZE_ABS     },
  74         { "default",    ADDR_SIZE_DEFAULT },
  75         { "direct",     ADDR_SIZE_ZP      },
  76         { "dword",      ADDR_SIZE_LONG    },
  77         { "far",        ADDR_SIZE_FAR     },
  78         { "long",       ADDR_SIZE_LONG    },
  79         { "near",       ADDR_SIZE_ABS     },
  80         { "zeropage",   ADDR_SIZE_ZP      },
  81         { "zp",         ADDR_SIZE_ZP      },
  82     };
  83     unsigned I;
  84
  85     for (I = 0; I < sizeof (AddrSizeTable) / sizeof (AddrSizeTable[0]); ++I) {
  86         if (StrCaseCmp (Str, AddrSizeTable[I].Name) == 0) {
  87             /* Found */
  88             return AddrSizeTable[I].AddrSize;
  89         }
  90     }
  91
  92     /* Not found */
  93     return ADDR_SIZE_INVALID;
  94 }