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153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
///////////////////////////////////////////////////////////////////////////////
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// HEX_STR.C
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// Copyright (c) 1995 by Robert Dickenson
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//
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#include "hex_str.h"
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#define LOBYTE(w) ((unsigned char)(w))
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#define HIBYTE(w) ((unsigned char)((unsigned short)(w) >> 8))
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unsigned char AsciiTable[256][3] = {
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"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0A", "0B", "0C", "0D", "0E", "0F",
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"10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1A", "1B", "1C", "1D", "1E", "1F",
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"20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2A", "2B", "2C", "2D", "2E", "2F",
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"30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3A", "3B", "3C", "3D", "3E", "3F",
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"40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4A", "4B", "4C", "4D", "4E", "4F",
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"50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5A", "5B", "5C", "5D", "5E", "5F",
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"60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6A", "6B", "6C", "6D", "6E", "6F",
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"70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7A", "7B", "7C", "7D", "7E", "7F",
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"80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8A", "8B", "8C", "8D", "8E", "8F",
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"90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9A", "9B", "9C", "9D", "9E", "9F",
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"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "A8", "A9", "AA", "AB", "AC", "AD", "AE", "AF",
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"B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", "B8", "B9", "BA", "BB", "BC", "BD", "BE", "BF",
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"C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", "C8", "C9", "CA", "CB", "CC", "CD", "CE", "CF",
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"D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", "D8", "D9", "DA", "DB", "DC", "DD", "DE", "DF",
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"E0", "E1", "E2", "E3", "E4", "E5", "E6", "E7", "E8", "E9", "EA", "EB", "EC", "ED", "EE", "EF",
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"F0", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "FA", "FB", "FC", "FD", "FE", "FF"
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};
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unsigned char HexTable[24] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15, 16
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};
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unsigned long BinaryNibbles[] = {
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(unsigned long)"0000",
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(unsigned long)"0001",
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(unsigned long)"0010",
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(unsigned long)"0011",
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(unsigned long)"0100",
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(unsigned long)"0101",
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(unsigned long)"0110",
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(unsigned long)"0111",
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(unsigned long)"1000",
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(unsigned long)"1001",
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(unsigned long)"1010",
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(unsigned long)"1011",
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(unsigned long)"1100",
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(unsigned long)"1101",
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(unsigned long)"1110",
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(unsigned long)"1111"
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};
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void ByteBinStr(char* dst, unsigned char num)
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{
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*(unsigned long*)dst++ = BinaryNibbles[(num >> 4) & 0x07];
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*(unsigned long*)dst++ = BinaryNibbles[num & 0x07];
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}
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void WordBinStr(char* dst, unsigned short num)
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{
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ByteBinStr(dst, HIBYTE(num));
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ByteBinStr(dst+4, LOBYTE(num));
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}
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unsigned short Byte2Hex(unsigned char data)
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{
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register unsigned short result;
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result = AsciiTable[data][1] << 8;
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result += AsciiTable[data][0];
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return result;
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}
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unsigned long Word2Hex(unsigned short data)
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{
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register unsigned long result;
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result = (unsigned long)Byte2Hex(LOBYTE(data)) << 16;
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result += Byte2Hex(HIBYTE(data));
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return result;
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}
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unsigned char HexByte(char* str)
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{
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register unsigned char result;
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result = HexTable[*str++ - '0'] * 16;
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result += HexTable[*str++ - '0'];
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return result;
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}
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unsigned int HexWord(char* str)
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{
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register unsigned int result;
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result = HexByte(str) << 8;
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result += HexByte(str+2);
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return result;
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}
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unsigned long HexLong(char* str)
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{
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register unsigned long result;
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result = HexByte(str++) << 24;
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result += HexByte(str++) << 16;
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result += HexByte(str++) << 8;
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result += HexByte(str);
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return result;
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}
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unsigned long HexString(char* str)
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{
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unsigned long temp = 0;
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while ( *str )
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{
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temp <<= 4;
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switch ( *str++ )
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{
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case '0': break;
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case '1': temp += 1; break;
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case '2': temp += 2; break;
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case '3': temp += 3; break;
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case '4': temp += 4; break;
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case '5': temp += 5; break;
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case '6': temp += 6; break;
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case '7': temp += 7; break;
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case '8': temp += 8; break;
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case '9': temp += 9; break;
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case 'A': temp += 10; break;
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case 'B': temp += 11; break;
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case 'C': temp += 12; break;
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case 'D': temp += 13; break;
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case 'E': temp += 14; break;
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case 'F': temp += 15; break;
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case 'a': temp += 10; break;
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case 'b': temp += 11; break;
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case 'c': temp += 12; break;
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case 'd': temp += 13; break;
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case 'e': temp += 14; break;
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case 'f': temp += 15; break;
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case 'X': temp = 0; break;
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case 'x': temp = 0; break;
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default: return temp;
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}
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}
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return temp;
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}
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///////////////////////////////////////////////////////////////////////////////
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