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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                tgttrans.c                                 */
   4 /*                                                                           */
   5 /*                         Character set translation                         */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000     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 #include "abend.h"
  37 #include "target.h"
  38 #include "tgttrans.h"
  39
  40
  41
  42 /*****************************************************************************/
  43 /*                                   Data                                    */
  44 /*****************************************************************************/
  45
  46
  47
  48 /* Translation table ISO-8859-1 -> ATASCII */
  49 static const unsigned char CTAtari [256] = {
  50     0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x7E,0x08,0x7F,0x9B,0x0B,0x7D,0x0D,0x0E,0x0F,
  51     0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
  52     0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
  53     0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
  54     0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
  55     0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
  56     0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
  57     0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
  58     0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
  59     0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
  60     0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
  61     0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
  62     0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
  63     0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
  64     0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
  65     0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
  66 };
  67
  68 /* Translation table ISO-8859-1 -> PETSCII */
  69 static const unsigned char CTPET [256] = {
  70     0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x14,0x09,0x0D,0x11,0x93,0x0A,0x0E,0x0F,
  71     0x10,0x0B,0x12,0x13,0x08,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
  72     0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
  73     0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
  74     0x40,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
  75     0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0x5B,0x5C,0x5D,0x5E,0x5F,
  76     0xC0,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
  77     0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0xDB,0xDC,0xDD,0xDE,0xDF,
  78     0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
  79     0x90,0x91,0x92,0x0C,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
  80     0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
  81     0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
  82     0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
  83     0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
  84     0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
  85     0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
  86 };
  87
  88 /* Pointer to translation table */
  89 static const unsigned char* Tab = 0;
  90
  91
  92
  93 /*****************************************************************************/
  94 /*                                   Code                                    */
  95 /*****************************************************************************/
  96
  97
  98
  99 void TgtTranslateInit (void)
 100 /* Initialize the translation tables */
 101 {
 102     switch (Target) {
 103         case TGT_NONE:                          break;
 104         case TGT_ATARI:         Tab = CTAtari;  break;
 105         case TGT_C64:           Tab = CTPET;    break;
 106         case TGT_C128:          Tab = CTPET;    break;
 107         case TGT_ACE:           Tab = CTPET;    break;
 108         case TGT_PLUS4:         Tab = CTPET;    break;
 109         case TGT_CBM610:        Tab = CTAtari;  break;
 110         case TGT_PET:           Tab = CTAtari;  break;
 111         case TGT_NES:                           break;
 112         case TGT_APPLE2:                        break;
 113         case TGT_GEOS:                          break;
 114         default:
 115             AbEnd ("Internal error: Target system unknown (%d)", Target);
 116     }
 117 }
 118
 119
 120
 121 int TgtTranslateChar (int C)
 122 /* Translate one character from the source character set into the target
 123  * system character set.
 124  */
 125 {
 126     /* Translate */
 127     C &= 0xFF;
 128     return Tab? Tab[C] : C;
 129 }
 130
 131
 132
 133 char* TgtTranslateStr (char* S)
 134 /* Translate a complete string from the source character set into the target
 135  * system character set.
 136  */
 137 {
 138     /* Translate */
 139     if (Tab) {
 140         unsigned char* T = (unsigned char*)S;
 141         while (*T) {
 142             *T = Tab[*T];
 143             ++T;
 144         }
 145     }
 146
 147     /* Return the argument string */
 148     return S;
 149 }
 150
 151
 152