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1.1 ! root 1: /*-- ! 2: ! 3: Module Name: ! 4: ! 5: largeint.h ! 6: ! 7: Abstract: ! 8: ! 9: Include file for sample Large Integer Arithmetic routines. ! 10: This file includes all of the prototypes for the routines found in ! 11: largeint.lib. For complete descriptions of these functions, see the ! 12: largeint.s source file for MIPS, or the divlarge.c and largeint.asm ! 13: source files for x86. ! 14: ! 15: Revision History: ! 16: ! 17: --*/ ! 18: ! 19: #ifdef __cplusplus ! 20: extern "C" { ! 21: #endif ! 22: ! 23: // ! 24: //Large integer arithmetic routines. ! 25: // ! 26: ! 27: // ! 28: // Large integer add - 64-bits + 64-bits -> 64-bits ! 29: // ! 30: ! 31: LARGE_INTEGER ! 32: WINAPI ! 33: LargeIntegerAdd ( ! 34: LARGE_INTEGER Addend1, ! 35: LARGE_INTEGER Addend2 ! 36: ); ! 37: ! 38: // ! 39: // Enlarged integer multiply - 32-bits * 32-bits -> 64-bits ! 40: // ! 41: ! 42: LARGE_INTEGER ! 43: WINAPI ! 44: EnlargedIntegerMultiply ( ! 45: LONG Multiplicand, ! 46: LONG Multiplier ! 47: ); ! 48: ! 49: // ! 50: // Unsigned enlarged integer multiply - 32-bits * 32-bits -> 64-bits ! 51: // ! 52: ! 53: LARGE_INTEGER ! 54: WINAPI ! 55: EnlargedUnsignedMultiply ( ! 56: ULONG Multiplicand, ! 57: ULONG Multiplier ! 58: ); ! 59: ! 60: // ! 61: // Enlarged integer divide - 64-bits / 32-bits > 32-bits ! 62: // ! 63: ! 64: ULONG ! 65: WINAPI ! 66: EnlargedUnsignedDivide ( ! 67: IN ULARGE_INTEGER Dividend, ! 68: IN ULONG Divisor, ! 69: IN PULONG Remainder ! 70: ); ! 71: ! 72: // ! 73: // Extended large integer magic divide - 64-bits / 32-bits -> 64-bits ! 74: // ! 75: ! 76: LARGE_INTEGER ! 77: WINAPI ! 78: ExtendedMagicDivide ( ! 79: LARGE_INTEGER Dividend, ! 80: LARGE_INTEGER MagicDivisor, ! 81: CCHAR ShiftCount ! 82: ); ! 83: ! 84: // ! 85: // Large Integer divide - 64-bits / 32-bits -> 64-bits ! 86: // ! 87: ! 88: LARGE_INTEGER ! 89: WINAPI ! 90: ExtendedLargeIntegerDivide ( ! 91: LARGE_INTEGER Dividend, ! 92: ULONG Divisor, ! 93: PULONG Remainder ! 94: ); ! 95: ! 96: // ! 97: // Large Integer divide - 64-bits / 32-bits -> 64-bits ! 98: // ! 99: ! 100: LARGE_INTEGER ! 101: WINAPI ! 102: LargeIntegerDivide ( ! 103: LARGE_INTEGER Dividend, ! 104: LARGE_INTEGER Divisor, ! 105: PLARGE_INTEGER Remainder ! 106: ); ! 107: ! 108: // ! 109: // Extended integer multiply - 32-bits * 64-bits -> 64-bits ! 110: // ! 111: ! 112: LARGE_INTEGER ! 113: WINAPI ! 114: ExtendedIntegerMultiply ( ! 115: LARGE_INTEGER Multiplicand, ! 116: LONG Multiplier ! 117: ); ! 118: ! 119: // ! 120: // Large integer negation - -(64-bits) ! 121: // ! 122: ! 123: LARGE_INTEGER ! 124: WINAPI ! 125: LargeIntegerNegate ( ! 126: LARGE_INTEGER Subtrahend ! 127: ); ! 128: ! 129: // ! 130: // Large integer subtract - 64-bits - 64-bits -> 64-bits. ! 131: // ! 132: ! 133: LARGE_INTEGER ! 134: WINAPI ! 135: LargeIntegerSubtract ( ! 136: LARGE_INTEGER Minuend, ! 137: LARGE_INTEGER Subtrahend ! 138: ); ! 139: ! 140: // ! 141: // Large integer and - 64-bite & 64-bits -> 64-bits. ! 142: // ! 143: ! 144: #define LargeIntegerAnd(Result, Source, Mask) \ ! 145: { \ ! 146: Result.HighPart = Source.HighPart & Mask.HighPart; \ ! 147: Result.LowPart = Source.LowPart & Mask.LowPart; \ ! 148: } ! 149: ! 150: ! 151: // ! 152: // Large integer conversion routines. ! 153: // ! 154: ! 155: // ! 156: // Convert signed integer to large integer. ! 157: // ! 158: ! 159: LARGE_INTEGER ! 160: WINAPI ! 161: ConvertLongToLargeInteger ( ! 162: LONG SignedInteger ! 163: ); ! 164: ! 165: // ! 166: // Convert unsigned integer to large integer. ! 167: // ! 168: ! 169: LARGE_INTEGER ! 170: WINAPI ! 171: ConvertUlongToLargeInteger ( ! 172: ULONG UnsignedInteger ! 173: ); ! 174: ! 175: ! 176: // ! 177: // Large integer shift routines. ! 178: // ! 179: ! 180: LARGE_INTEGER ! 181: WINAPI ! 182: LargeIntegerShiftLeft ( ! 183: LARGE_INTEGER LargeInteger, ! 184: CCHAR ShiftCount ! 185: ); ! 186: ! 187: LARGE_INTEGER ! 188: WINAPI ! 189: LargeIntegerShiftRight ( ! 190: LARGE_INTEGER LargeInteger, ! 191: CCHAR ShiftCount ! 192: ); ! 193: ! 194: LARGE_INTEGER ! 195: WINAPI ! 196: LargeIntegerArithmeticShift ( ! 197: LARGE_INTEGER LargeInteger, ! 198: CCHAR ShiftCount ! 199: ); ! 200: ! 201: #define LargeIntegerGreaterThan(X,Y) ( \ ! 202: (((X).HighPart == (Y).HighPart) && ((X).LowPart > (Y).LowPart)) || \ ! 203: ((X).HighPart > (Y).HighPart) \ ! 204: ) ! 205: ! 206: #define LargeIntegerGreaterThanOrEqualTo(X,Y) ( \ ! 207: (((X).HighPart == (Y).HighPart) && ((X).LowPart >= (Y).LowPart)) || \ ! 208: ((X).HighPart > (Y).HighPart) \ ! 209: ) ! 210: ! 211: #define LargeIntegerEqualTo(X,Y) ( \ ! 212: !(((X).LowPart ^ (Y).LowPart) | ((X).HighPart ^ (Y).HighPart)) \ ! 213: ) ! 214: ! 215: #define LargeIntegerNotEqualTo(X,Y) ( \ ! 216: (((X).LowPart ^ (Y).LowPart) | ((X).HighPart ^ (Y).HighPart)) \ ! 217: ) ! 218: ! 219: #define LargeIntegerLessThan(X,Y) ( \ ! 220: (((X).HighPart == (Y).HighPart) && ((X).LowPart < (Y).LowPart)) || \ ! 221: ((X).HighPart < (Y).HighPart) \ ! 222: ) ! 223: ! 224: #define LargeIntegerLessThanOrEqualTo(X,Y) ( \ ! 225: (((X).HighPart == (Y).HighPart) && ((X).LowPart <= (Y).LowPart)) || \ ! 226: ((X).HighPart < (Y).HighPart) \ ! 227: ) ! 228: ! 229: #define LargeIntegerGreaterThanZero(X) ( \ ! 230: (((X).HighPart == 0) && ((X).LowPart > 0)) || \ ! 231: ((X).HighPart > 0 ) \ ! 232: ) ! 233: ! 234: #define LargeIntegerGreaterOrEqualToZero(X) ( \ ! 235: (X).HighPart >= 0 \ ! 236: ) ! 237: ! 238: #define LargeIntegerEqualToZero(X) ( \ ! 239: !((X).LowPart | (X).HighPart) \ ! 240: ) ! 241: ! 242: #define LargeIntegerNotEqualToZero(X) ( \ ! 243: ((X).LowPart | (X).HighPart) \ ! 244: ) ! 245: ! 246: #define LargeIntegerLessThanZero(X) ( \ ! 247: ((X).HighPart < 0) \ ! 248: ) ! 249: ! 250: #define LargeIntegerLessOrEqualToZero(X) ( \ ! 251: ((X).HighPart < 0) || !((X).LowPart | (X).HighPart) \ ! 252: ) ! 253: ! 254: #ifdef __cplusplus ! 255: } ! 256: #endif ! 257:
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