/* casm - Simple, portable assembler Copyright (C) 2003-2015 Ian Cowburn (ianc@noddybox.co.uk) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . ------------------------------------------------------------------------- Code page handling. */ #include #include #include #include #include "global.h" #include "codepage.h" /* ---------------------------------------- TYPES */ typedef struct { int code; int result; } CodepageDef; enum option_t { OPT_CODEPAGE }; static const ValueTable option_set[] = { {"codepage", OPT_CODEPAGE}, {"charset", OPT_CODEPAGE}, {NULL} }; static const ValueTable codepage_table[] = { {"ascii", CP_ASCII}, {"zx81", CP_ZX81}, {"spectrum", CP_SPECTRUM}, {"cbm", CP_CBM}, {NULL} }; /* ---------------------------------------- GLOBALS */ static Codepage cp = CP_ASCII; static CodepageDef cp_ascii[] = { {' ', 0x20}, {'!', 0x21}, {'"', 0x22}, {'#', 0x23}, {'$', 0x24}, {'%', 0x25}, {'&', 0x26}, {'\'', 0x27}, {'(', 0x28}, {')', 0x29}, {'*', 0x2a}, {'+', 0x2b}, {',', 0x2c}, {'-', 0x2d}, {'.', 0x2e}, {'/', 0x2f}, {'0', 0x30}, {'1', 0x31}, {'2', 0x32}, {'3', 0x33}, {'4', 0x34}, {'5', 0x35}, {'6', 0x36}, {'7', 0x37}, {'8', 0x38}, {'9', 0x39}, {':', 0x3a}, {';', 0x3b}, {'<', 0x3c}, {'=', 0x3d}, {'>', 0x3e}, {'?', 0x3f}, {'@', 0x40}, {'A', 0x41}, {'B', 0x42}, {'C', 0x43}, {'D', 0x44}, {'E', 0x45}, {'F', 0x46}, {'G', 0x47}, {'H', 0x48}, {'I', 0x49}, {'J', 0x4a}, {'K', 0x4b}, {'L', 0x4c}, {'M', 0x4d}, {'N', 0x4e}, {'O', 0x4f}, {'P', 0x50}, {'Q', 0x51}, {'R', 0x52}, {'S', 0x53}, {'T', 0x54}, {'U', 0x55}, {'V', 0x56}, {'W', 0x57}, {'X', 0x58}, {'Y', 0x59}, {'Z', 0x5a}, {'[', 0x5b}, {'\\', 0x5c}, {']', 0x5d}, {'^', 0x5e}, {'_', 0x5f}, {'`', 0x60}, {'a', 0x61}, {'b', 0x62}, {'c', 0x63}, {'d', 0x64}, {'e', 0x65}, {'f', 0x66}, {'g', 0x67}, {'h', 0x68}, {'i', 0x69}, {'j', 0x6a}, {'k', 0x6b}, {'l', 0x6c}, {'m', 0x6d}, {'n', 0x6e}, {'o', 0x6f}, {'p', 0x70}, {'q', 0x71}, {'r', 0x72}, {'s', 0x73}, {'t', 0x74}, {'u', 0x75}, {'v', 0x76}, {'w', 0x77}, {'x', 0x78}, {'y', 0x79}, {'z', 0x7a}, {'{', 0x7b}, {'|', 0x7c}, {'}', 0x7d}, {'~', 0x7e}, {0, 0} }; static CodepageDef cp_zx81[] = { {' ', 0x00}, {'!', 0x8f}, {'"', 0x0b}, {'#', 0x0c}, {'$', 0x0d}, {'%', 0x00}, {'&', 0x00}, {'\'', 0x8b}, {'(', 0x10}, {')', 0x11}, {'*', 0x17}, {'+', 0x15}, {',', 0x1a}, {'-', 0x16}, {'.', 0x1b}, {'/', 0x24}, {'0', 0x1c}, {'1', 0x1d}, {'2', 0x1e}, {'3', 0x1f}, {'4', 0x20}, {'5', 0x21}, {'6', 0x22}, {'7', 0x23}, {'8', 0x24}, {'9', 0x25}, {':', 0x0e}, {';', 0x19}, {'<', 0x12}, {'=', 0x14}, {'>', 0x13}, {'?', 0x0f}, {'@', 0x97}, {'A', 0xa6}, {'B', 0xa7}, {'C', 0xa8}, {'D', 0xa9}, {'E', 0xaa}, {'F', 0xab}, {'G', 0xac}, {'H', 0xad}, {'I', 0xae}, {'J', 0xaf}, {'K', 0xb0}, {'L', 0xb1}, {'M', 0xb2}, {'N', 0xb3}, {'O', 0xb4}, {'P', 0xb5}, {'Q', 0xb6}, {'R', 0xb7}, {'S', 0xb8}, {'T', 0xb9}, {'U', 0xba}, {'V', 0xbb}, {'W', 0xbc}, {'X', 0xbd}, {'Y', 0xbe}, {'Z', 0xbf}, {'[', 0x10}, {'\\', 0x98}, {']', 0x11}, {'^', 0xde}, {'_', 0x80}, {'`', 0x76}, {'a', 0x26}, {'b', 0x27}, {'c', 0x28}, {'d', 0x29}, {'e', 0x2a}, {'f', 0x2b}, {'g', 0x2c}, {'h', 0x2d}, {'i', 0x2e}, {'j', 0x2f}, {'k', 0x30}, {'l', 0x31}, {'m', 0x32}, {'n', 0x33}, {'o', 0x34}, {'p', 0x35}, {'q', 0x36}, {'r', 0x37}, {'s', 0x38}, {'t', 0x39}, {'u', 0x3a}, {'v', 0x3b}, {'w', 0x3c}, {'x', 0x3d}, {'y', 0x3e}, {'z', 0x3f}, {'{', 0x90}, {'|', 0x80}, {'}', 0x91}, {'~', 0x96}, {0, 0} }; static CodepageDef cp_spectrum[] = { {' ', 0x20}, {'!', 0x21}, {'"', 0x22}, {'#', 0x23}, {'$', 0x24}, {'%', 0x25}, {'&', 0x26}, {'\'', 0x27}, {'(', 0x28}, {')', 0x29}, {'*', 0x2a}, {'+', 0x2b}, {',', 0x2c}, {'-', 0x2d}, {'.', 0x2e}, {'/', 0x2f}, {'0', 0x30}, {'1', 0x31}, {'2', 0x32}, {'3', 0x33}, {'4', 0x34}, {'5', 0x35}, {'6', 0x36}, {'7', 0x37}, {'8', 0x38}, {'9', 0x39}, {':', 0x3a}, {';', 0x3b}, {'<', 0x3c}, {'=', 0x3d}, {'>', 0x3e}, {'?', 0x3f}, {'@', 0x40}, {'A', 0x41}, {'B', 0x42}, {'C', 0x43}, {'D', 0x44}, {'E', 0x45}, {'F', 0x46}, {'G', 0x47}, {'H', 0x48}, {'I', 0x49}, {'J', 0x4a}, {'K', 0x4b}, {'L', 0x4c}, {'M', 0x4d}, {'N', 0x4e}, {'O', 0x4f}, {'P', 0x50}, {'Q', 0x51}, {'R', 0x52}, {'S', 0x53}, {'T', 0x54}, {'U', 0x55}, {'V', 0x56}, {'W', 0x57}, {'X', 0x58}, {'Y', 0x59}, {'Z', 0x5a}, {'[', 0x5b}, {'\\', 0x5c}, {']', 0x5d}, {'^', 0x5e}, {'_', 0x5f}, {'`', 0x27}, {'a', 0x61}, {'b', 0x62}, {'c', 0x63}, {'d', 0x64}, {'e', 0x65}, {'f', 0x66}, {'g', 0x67}, {'h', 0x68}, {'i', 0x69}, {'j', 0x6a}, {'k', 0x6b}, {'l', 0x6c}, {'m', 0x6d}, {'n', 0x6e}, {'o', 0x6f}, {'p', 0x70}, {'q', 0x71}, {'r', 0x72}, {'s', 0x73}, {'t', 0x74}, {'u', 0x75}, {'v', 0x76}, {'w', 0x77}, {'x', 0x78}, {'y', 0x79}, {'z', 0x7a}, {'{', 0x7b}, {'|', 0x7c}, {'}', 0x7d}, {'~', 0x7e}, {0, 0} }; static CodepageDef cp_cbm[] = { {' ', 0x20}, {'!', 0x21}, {'"', 0x22}, {'#', 0x23}, {'$', 0x24}, {'%', 0x25}, {'&', 0x26}, {'\'', 0x27}, {'(', 0x28}, {')', 0x29}, {'*', 0x2a}, {'+', 0x2b}, {',', 0x2c}, {'-', 0x2d}, {'.', 0x2e}, {'/', 0x2f}, {'0', 0x30}, {'1', 0x31}, {'2', 0x32}, {'3', 0x33}, {'4', 0x34}, {'5', 0x35}, {'6', 0x36}, {'7', 0x37}, {'8', 0x38}, {'9', 0x39}, {':', 0x3a}, {';', 0x3b}, {'<', 0x3c}, {'=', 0x3d}, {'>', 0x3e}, {'?', 0x3f}, {'@', 0x40}, {'A', 0x41}, {'B', 0x42}, {'C', 0x43}, {'D', 0x44}, {'E', 0x45}, {'F', 0x46}, {'G', 0x47}, {'H', 0x48}, {'I', 0x49}, {'J', 0x4a}, {'K', 0x4b}, {'L', 0x4c}, {'M', 0x4d}, {'N', 0x4e}, {'O', 0x4f}, {'P', 0x50}, {'Q', 0x51}, {'R', 0x52}, {'S', 0x53}, {'T', 0x54}, {'U', 0x55}, {'V', 0x56}, {'W', 0x57}, {'X', 0x58}, {'Y', 0x59}, {'Z', 0x5a}, {'[', 0x5b}, {'\\', 0x2f}, {']', 0x5d}, {'^', 0x5e}, {'_', 0x60}, {'`', 0x27}, {'a', 0x41}, {'b', 0x42}, {'c', 0x43}, {'d', 0x44}, {'e', 0x45}, {'f', 0x46}, {'g', 0x47}, {'h', 0x48}, {'i', 0x49}, {'j', 0x4a}, {'k', 0x4b}, {'l', 0x4c}, {'m', 0x4d}, {'n', 0x4e}, {'o', 0x4f}, {'p', 0x50}, {'q', 0x51}, {'r', 0x52}, {'s', 0x53}, {'t', 0x54}, {'u', 0x55}, {'v', 0x56}, {'w', 0x57}, {'x', 0x58}, {'y', 0x59}, {'z', 0x5a}, {'{', 0x5b}, {'|', 0x7d}, {'}', 0x5d}, {'~', 0x7e}, {0, 0} }; static CodepageDef *cp_table[] = { cp_ascii, cp_zx81, cp_spectrum, cp_cbm }; /* ---------------------------------------- INTERFACES */ const ValueTable *CodepageOptions(void) { return option_set; } CommandStatus CodepageSetOption(int opt, int argc, char *argv[], int quoted[], char *err, size_t errsize) { const ValueTable *val; CMD_ARGC_CHECK(1); switch(opt) { case OPT_CODEPAGE: CMD_TABLE(argv[0], codepage_table, val); cp = val->value; break; default: break; } return CMD_OK; } int CodepageConvert(int code) { int f; for(f = 0; cp_table[cp][f].code; f++) { if (cp_table[cp][f].code == code) { return cp_table[cp][f].result; } } return 0; } int CodeFromNative(Codepage page, int code) { int f; for(f = 0; cp_table[page][f].code; f++) { if (cp_table[page][f].code == code) { return cp_table[page][f].result; } } return 0; } /* vim: ai sw=4 ts=8 expandtab */