Index: /trunk/include/iprt/uint128.h =================================================================== --- /trunk/include/iprt/uint128.h (revision 60481) +++ /trunk/include/iprt/uint128.h (revision 60482) @@ -29,5 +29,4 @@ #include #include -#include #include #ifdef RT_ARCH_AMD64 @@ -449,6 +448,6 @@ DECLINLINE(PRTUINT128U) RTUInt128BooleanNot(PRTUINT128U pResult, PCRTUINT128U pValue) { + pResult->s.Lo = pValue->s.Lo || pValue->s.Hi ? 0 : 1; pResult->s.Hi = 0; - pResult->s.Lo = pValue->s.Lo || pValue->s.Hi ? 0 : 1; return pResult; } @@ -559,5 +558,5 @@ /** - * Assigns a 16-bit unsigned integer value to 128-bit unsigned integer. + * Assigns a 32-bit unsigned integer value to 128-bit unsigned integer. * * @returns pValueResult Index: /trunk/include/iprt/uint64.h =================================================================== --- /trunk/include/iprt/uint64.h (revision 60482) +++ /trunk/include/iprt/uint64.h (revision 60482) @@ -0,0 +1,1332 @@ +/** @file + * IPRT - RTUINT64U methods for old 32-bit and 16-bit compilers. + */ + +/* + * Copyright (C) 2011-2016 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef ___iprt_uint64_h +#define ___iprt_uint64_h + +#include +#include +#include + +RT_C_DECLS_BEGIN + +/** @defgroup grp_rt_uint64 RTUInt64 - 64-bit Unsigned Integer Methods for ancient compilers + * @ingroup grp_rt + * @{ + */ + + +/** + * Test if a 128-bit unsigned integer value is zero. + * + * @returns true if they are, false if they aren't. + * @param pValue The input and output value. + */ +DECLINLINE(bool) RTUInt64IsZero(PRTUINT64U pValue) +{ +#if ARCH_BITS >= 32 + return pValue->s.Lo == 0 + && pValue->s.Hi == 0; +#else + return pValue->Words.w0 == 0 + && pValue->Words.w1 == 0 + && pValue->Words.w2 == 0 + && pValue->Words.w3 == 0; +#endif +} + + +/** + * Set a 128-bit unsigned integer value to zero. + * + * @returns pResult + * @param pResult The result variable. + */ +DECLINLINE(PRTUINT64U) RTUInt64SetZero(PRTUINT64U pResult) +{ +#if ARCH_BITS >= 32 + pResult->s.Hi = 0; + pResult->s.Lo = 0; +#else + pResult->Words.w0 = 0; + pResult->Words.w1 = 0; + pResult->Words.w2 = 0; + pResult->Words.w3 = 0; +#endif + return pResult; +} + + +/** + * Set a 32-bit unsigned integer value to the maximum value. + * + * @returns pResult + * @param pResult The result variable. + */ +DECLINLINE(PRTUINT64U) RTUInt64SetMax(PRTUINT64U pResult) +{ +#if ARCH_BITS >= 32 + pResult->s.Hi = UINT32_MAX; + pResult->s.Lo = UINT32_MAX; +#else + pResult->Words.w0 = UINT16_MAX; + pResult->Words.w1 = UINT16_MAX; + pResult->Words.w2 = UINT16_MAX; + pResult->Words.w3 = UINT16_MAX; +#endif + return pResult; +} + + + + +/** + * Adds two 64-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Add(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + pResult->s.Hi = pValue1->s.Hi + pValue2->s.Hi; + pResult->s.Lo = pValue1->s.Lo + pValue2->s.Lo; + if (pResult->s.Lo < pValue1->s.Lo) + pResult->s.Hi++; + return pResult; +} + + +/** + * Adds a 64-bit and a 32-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param uValue2 The second value, 32-bit. + */ +DECLINLINE(PRTUINT64U) RTUInt64AddU32(PRTUINT64U pResult, PCRTUINT64U pValue1, uint32_t uValue2) +{ + pResult->s.Hi = pValue1->s.Hi; + pResult->s.Lo = pValue1->s.Lo + uValue2; + if (pResult->s.Lo < pValue1->s.Lo) + pResult->s.Hi++; + return pResult; +} + + +/** + * Subtracts a 64-bit unsigned integer value from another. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The minuend value. + * @param pValue2 The subtrahend value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Sub(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + pResult->s.Lo = pValue1->s.Lo - pValue2->s.Lo; + pResult->s.Hi = pValue1->s.Hi - pValue2->s.Hi; + if (pResult->s.Lo > pValue1->s.Lo) + pResult->s.Hi--; + return pResult; +} + + +/** + * Multiplies two 64-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Mul(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + RTUINT32U uTmp; + + /* multiply all words in v1 by v2.w0. */ + pResult->s.Lo = (uint32_t)pValue1->Words.w0 * pValue2->Words.w0; + + uTmp.u = (uint32_t)pValue1->Words.w1 * pValue2->Words.w0; + pResult->Words.w3 = 0; + pResult->Words.w2 = uTmp.Words.w1; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + pResult->s.Hi += (uint32_t)pValue1->Words.w2 * pValue2->Words.w0; + pResult->Words.w3 += pValue1->Words.w3 * pValue2->Words.w0; + + /* multiply w0, w1 & w2 in v1 by v2.w1. */ + uTmp.u = (uint32_t)pValue1->Words.w0 * pValue2->Words.w1; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + pResult->Words.w2 += uTmp.Words.w1; + if (pResult->Words.w2 < uTmp.Words.w1) + pResult->Words.w3++; + + pResult->s.Hi += (uint32_t)pValue1->Words.w1 * pValue2->Words.w1; + pResult->Words.w3 += pValue1->Words.w2 * pValue2->Words.w1; + + /* multiply w0 & w1 in v1 by v2.w2. */ + pResult->s.Hi += (uint32_t)pValue1->Words.w0 * pValue2->Words.w2; + pResult->Words.w3 += pValue1->Words.w1 * pValue2->Words.w2; + + /* multiply w0 in v1 by v2.w3. */ + pResult->Words.w3 += pValue1->Words.w0 * pValue2->Words.w3; + + return pResult; +} + + +/** + * Multiplies an 64-bit unsigned integer by a 32-bit unsigned integer value. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param uValue2 The second value, 32-bit. + */ +DECLINLINE(PRTUINT64U) RTUInt64MulByU32(PRTUINT64U pResult, PCRTUINT64U pValue1, uint32_t uValue2) +{ + uint16_t const uLoValue2 = (uint16_t)uValue2; + uint16_t const uHiValue2 = (uint16_t)(uValue2 >> 16); + RTUINT32U uTmp; + + /* multiply all words in v1 by uLoValue1. */ + pResult->s.Lo = (uint32_t)pValue1->Words.w0 * uLoValue2; + + uTmp.u = (uint32_t)pValue1->Words.w1 * uLoValue2; + pResult->Words.w3 = 0; + pResult->Words.w2 = uTmp.Words.w1; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + pResult->s.Hi += (uint32_t)pValue1->Words.w2 * uLoValue2; + pResult->Words.w3 += pValue1->Words.w3 * uLoValue2; + + /* multiply w0, w1 & w2 in v1 by uHiValue2. */ + uTmp.u = (uint32_t)pValue1->Words.w0 * uHiValue2; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + pResult->Words.w2 += uTmp.Words.w1; + if (pResult->Words.w2 < uTmp.Words.w1) + pResult->Words.w3++; + + pResult->s.Hi += (uint32_t)pValue1->Words.w1 * uHiValue2; + pResult->Words.w3 += pValue1->Words.w2 * uHiValue2; + + return pResult; +} + + +/** + * Multiplies two 32-bit unsigned integer values with 64-bit precision. + * + * @returns pResult + * @param pResult The result variable. + * @param uValue1 The first value. 32-bit. + * @param uValue2 The second value, 32-bit. + */ +DECLINLINE(PRTUINT64U) RTUInt64MulU32ByU32(PRTUINT64U pResult, uint32_t uValue1, uint32_t uValue2) +{ + uint16_t const uLoValue1 = (uint16_t)uValue1; + uint16_t const uHiValue1 = (uint16_t)(uValue1 >> 16); + uint16_t const uLoValue2 = (uint16_t)uValue2; + uint16_t const uHiValue2 = (uint16_t)(uValue2 >> 16); + RTUINT32U uTmp; + + /* Multiply uLoValue1 and uHiValue1 by uLoValue1. */ + pResult->s.Lo = (uint32_t)uLoValue1 * uLoValue2; + + uTmp.u = (uint32_t)uHiValue1 * uLoValue2; + pResult->Words.w3 = 0; + pResult->Words.w2 = uTmp.Words.w1; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + /* Multiply uLoValue1 and uHiValue1 by uHiValue2. */ + uTmp.u = (uint32_t)uLoValue1 * uHiValue2; + pResult->Words.w1 += uTmp.Words.w0; + if (pResult->Words.w1 < uTmp.Words.w0) + if (pResult->Words.w2++ == UINT16_MAX) + pResult->Words.w3++; + + pResult->Words.w2 += uTmp.Words.w1; + if (pResult->Words.w2 < uTmp.Words.w1) + pResult->Words.w3++; + + pResult->s.Hi += (uint32_t)uHiValue1 * uHiValue2; + return pResult; +} + + +DECLINLINE(PRTUINT64U) RTUInt64DivRem(PRTUINT64U pQuotient, PRTUINT64U pRemainder, PCRTUINT64U pValue1, PCRTUINT64U pValue2); + +/** + * Divides a 64-bit unsigned integer value by another. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The dividend value. + * @param pValue2 The divisor value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Div(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + RTUINT64U Ignored; + return RTUInt64DivRem(pResult, &Ignored, pValue1, pValue2); +} + + +/** + * Divides a 64-bit unsigned integer value by another, returning the remainder. + * + * @returns pResult + * @param pResult The result variable (remainder). + * @param pValue1 The dividend value. + * @param pValue2 The divisor value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Mod(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + RTUINT64U Ignored; + RTUInt64DivRem(&Ignored, pResult, pValue1, pValue2); + return pResult; +} + + +/** + * Bitwise AND of two 64-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64And(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + pResult->s.Hi = pValue1->s.Hi & pValue2->s.Hi; + pResult->s.Lo = pValue1->s.Lo & pValue2->s.Lo; + return pResult; +} + + +/** + * Bitwise OR of two 64-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Or( PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + pResult->s.Hi = pValue1->s.Hi | pValue2->s.Hi; + pResult->s.Lo = pValue1->s.Lo | pValue2->s.Lo; + return pResult; +} + + +/** + * Bitwise XOR of two 64-bit unsigned integer values. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64Xor(PRTUINT64U pResult, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + pResult->s.Hi = pValue1->s.Hi ^ pValue2->s.Hi; + pResult->s.Lo = pValue1->s.Lo ^ pValue2->s.Lo; + return pResult; +} + + +/** + * Shifts a 64-bit unsigned integer value @a cBits to the left. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue The value to shift. + * @param cBits The number of bits to shift it. + */ +DECLINLINE(PRTUINT64U) RTUInt64ShiftLeft(PRTUINT64U pResult, PCRTUINT64U pValue, int cBits) +{ + cBits &= 63; + if (cBits < 32) + { + pResult->s.Lo = pValue->s.Lo << cBits; + pResult->s.Hi = (pValue->s.Hi << cBits) | (pValue->s.Lo >> (32 - cBits)); + } + else + { + pResult->s.Lo = 0; + pResult->s.Hi = pValue->s.Lo << (cBits - 32); + } + return pResult; +} + + +/** + * Shifts a 64-bit unsigned integer value @a cBits to the right. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue The value to shift. + * @param cBits The number of bits to shift it. + */ +DECLINLINE(PRTUINT64U) RTUInt64ShiftRight(PRTUINT64U pResult, PCRTUINT64U pValue, int cBits) +{ + cBits &= 63; + if (cBits < 32) + { + pResult->s.Hi = pValue->s.Hi >> cBits; + pResult->s.Lo = (pValue->s.Lo >> cBits) | (pValue->s.Hi << (32 - cBits)); + } + else + { + pResult->s.Hi = 0; + pResult->s.Lo = pValue->s.Hi >> (cBits - 32); + } + return pResult; +} + + +/** + * Boolean not (result 0 or 1). + * + * @returns pResult. + * @param pResult The result variable. + * @param pValue The value. + */ +DECLINLINE(PRTUINT64U) RTUInt64BooleanNot(PRTUINT64U pResult, PCRTUINT64U pValue) +{ + pResult->s.Lo = pValue->s.Lo || pValue->s.Hi ? 0 : 1; + pResult->s.Hi = 0; + return pResult; +} + + +/** + * Bitwise not (flips each bit of the 64 bits). + * + * @returns pResult. + * @param pResult The result variable. + * @param pValue The value. + */ +DECLINLINE(PRTUINT64U) RTUInt64BitwiseNot(PRTUINT64U pResult, PCRTUINT64U pValue) +{ + pResult->s.Hi = ~pValue->s.Hi; + pResult->s.Lo = ~pValue->s.Lo; + return pResult; +} + + +/** + * Assigns one 64-bit unsigned integer value to another. + * + * @returns pResult + * @param pResult The result variable. + * @param pValue The value to assign. + */ +DECLINLINE(PRTUINT64U) RTUInt64Assign(PRTUINT64U pResult, PCRTUINT64U pValue) +{ +#if ARCH_BITS >= 32 + pResult->s.Hi = pValue->s.Hi; + pResult->s.Lo = pValue->s.Lo; +#else + pResult->Words.w0 = pValue->Words.w0; + pResult->Words.w1 = pValue->Words.w1; + pResult->Words.w2 = pValue->Words.w2; + pResult->Words.w3 = pValue->Words.w3; +#endif + return pResult; +} + + +/** + * Assigns a boolean value to 64-bit unsigned integer. + * + * @returns pValueResult + * @param pValueResult The result variable. + * @param fValue The boolean value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignBoolean(PRTUINT64U pValueResult, bool fValue) +{ +#if ARCH_BITS >= 32 + pValueResult->s.Lo = fValue; + pValueResult->s.Hi = 0; +#else + pValueResult->Words.w0 = fValue; + pValueResult->Words.w1 = 0; + pValueResult->Words.w2 = 0; + pValueResult->Words.w3 = 0; +#endif + return pValueResult; +} + + +/** + * Assigns a 8-bit unsigned integer value to 64-bit unsigned integer. + * + * @returns pValueResult + * @param pValueResult The result variable. + * @param u8Value The 8-bit unsigned integer value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignU8(PRTUINT64U pValueResult, uint8_t u8Value) +{ +#if ARCH_BITS >= 32 + pValueResult->s.Lo = u8Value; + pValueResult->s.Hi = 0; +#else + pValueResult->Words.w0 = u8Value; + pValueResult->Words.w1 = 0; + pValueResult->Words.w2 = 0; + pValueResult->Words.w3 = 0; +#endif + return pValueResult; +} + + +/** + * Assigns a 16-bit unsigned integer value to 64-bit unsigned integer. + * + * @returns pValueResult + * @param pValueResult The result variable. + * @param u16Value The 16-bit unsigned integer value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignU16(PRTUINT64U pValueResult, uint16_t u16Value) +{ +#if ARCH_BITS >= 32 + pValueResult->s.Lo = u16Value; + pValueResult->s.Hi = 0; +#else + pValueResult->Words.w0 = u16Value; + pValueResult->Words.w1 = 0; + pValueResult->Words.w2 = 0; + pValueResult->Words.w3 = 0; +#endif + return pValueResult; +} + + +/** + * Assigns a 32-bit unsigned integer value to 64-bit unsigned integer. + * + * @returns pValueResult + * @param pValueResult The result variable. + * @param u32Value The 32-bit unsigned integer value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignU32(PRTUINT64U pValueResult, uint32_t u32Value) +{ +#if ARCH_BITS >= 32 + pValueResult->s.Lo = u32Value; + pValueResult->s.Hi = 0; +#else + pValueResult->Words.w0 = (uint16_t)u32Value; + pValueResult->Words.w1 = u32Value >> 16; + pValueResult->Words.w2 = 0; + pValueResult->Words.w3 = 0; +#endif + return pValueResult; +} + + +/** + * Adds two 64-bit unsigned integer values, storing the result in the first. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignAdd(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ + uint32_t const uTmp = pValue1Result->s.Lo; + pValue1Result->s.Lo += pValue2->s.Lo; + if (pValue1Result->s.Lo < uTmp) + pValue1Result->s.Hi++; + pValue1Result->s.Hi += pValue2->s.Hi; + return pValue1Result; +} + + +/** + * Subtracts two 64-bit unsigned integer values, storing the result in the + * first. + * + * @returns pValue1Result. + * @param pValue1Result The minuend value and result. + * @param pValue2 The subtrahend value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignSub(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ + uint32_t const uTmp = pValue1Result->s.Lo; + pValue1Result->s.Lo -= pValue2->s.Lo; + if (pValue1Result->s.Lo > uTmp) + pValue1Result->s.Hi--; + pValue1Result->s.Hi -= pValue2->s.Hi; + return pValue1Result; +} + + +/** + * Multiplies two 64-bit unsigned integer values, storing the result in the + * first. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignMul(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ + RTUINT64U Result; + RTUInt64Mul(&Result, pValue1Result, pValue2); + *pValue1Result = Result; + return pValue1Result; +} + + +/** + * Divides a 64-bit unsigned integer value by another, storing the result in + * the first. + * + * @returns pValue1Result. + * @param pValue1Result The dividend value and result. + * @param pValue2 The divisor value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignDiv(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ + RTUINT64U Result; + RTUINT64U Ignored; + RTUInt64DivRem(&Result, &Ignored, pValue1Result, pValue2); + *pValue1Result = Result; + return pValue1Result; +} + + +/** + * Divides a 64-bit unsigned integer value by another, storing the remainder in + * the first. + * + * @returns pValue1Result. + * @param pValue1Result The dividend value and result (remainder). + * @param pValue2 The divisor value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignMod(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ + RTUINT64U Ignored; + RTUINT64U Result; + RTUInt64DivRem(&Ignored, &Result, pValue1Result, pValue2); + *pValue1Result = Result; + return pValue1Result; +} + + +/** + * Performs a bitwise AND of two 64-bit unsigned integer values and assigned + * the result to the first one. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignAnd(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + pValue1Result->s.Hi &= pValue2->s.Hi; + pValue1Result->s.Lo &= pValue2->s.Lo; +#else + pValue1Result->Words.w0 &= pValue2->Words.w0; + pValue1Result->Words.w1 &= pValue2->Words.w1; + pValue1Result->Words.w2 &= pValue2->Words.w2; + pValue1Result->Words.w3 &= pValue2->Words.w3; +#endif + return pValue1Result; +} + + +/** + * Performs a bitwise AND of a 64-bit unsigned integer value and a mask made + * up of the first N bits, assigning the result to the the 64-bit value. + * + * @returns pValueResult. + * @param pValueResult The value and result. + * @param cBits The number of bits to AND (counting from the first + * bit). + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignAndNFirstBits(PRTUINT64U pValueResult, unsigned cBits) +{ + if (cBits <= 32) + { + if (cBits != 32) + pValueResult->s.Lo &= (RT_BIT_32(cBits) - 1); + pValueResult->s.Hi = 0; + } + else if (cBits < 64) + pValueResult->s.Hi &= (RT_BIT_32(cBits - 32) - 1); + return pValueResult; +} + + +/** + * Performs a bitwise OR of two 64-bit unsigned integer values and assigned + * the result to the first one. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignOr(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + pValue1Result->s.Hi |= pValue2->s.Hi; + pValue1Result->s.Lo |= pValue2->s.Lo; +#else + pValue1Result->Words.w0 |= pValue2->Words.w0; + pValue1Result->Words.w1 |= pValue2->Words.w1; + pValue1Result->Words.w2 |= pValue2->Words.w2; + pValue1Result->Words.w3 |= pValue2->Words.w3; +#endif + return pValue1Result; +} + + +/** + * ORs in a bit and assign the result to the input value. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param iBit The bit to set (0 based). + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignOrBit(PRTUINT64U pValue1Result, unsigned iBit) +{ +#if ARCH_BITS >= 32 + if (iBit >= 32) + pValue1Result->s.Hi |= RT_BIT_32(iBit - 32); + else + pValue1Result->s.Lo |= RT_BIT_32(iBit); +#else + if (iBit >= 32) + { + if (iBit >= 48) + pValue1Result->Words.w3 |= UINT16_C(1) << (iBit - 48); + else + pValue1Result->Words.w2 |= UINT16_C(1) << (iBit - 32); + } + else + { + if (iBit >= 16) + pValue1Result->Words.w1 |= UINT16_C(1) << (iBit - 16); + else + pValue1Result->Words.w0 |= UINT16_C(1) << (iBit); + } +#endif + return pValue1Result; +} + + + +/** + * Performs a bitwise XOR of two 64-bit unsigned integer values and assigned + * the result to the first one. + * + * @returns pValue1Result. + * @param pValue1Result The first value and result. + * @param pValue2 The second value. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignXor(PRTUINT64U pValue1Result, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + pValue1Result->s.Hi ^= pValue2->s.Hi; + pValue1Result->s.Lo ^= pValue2->s.Lo; +#else + pValue1Result->Words.w0 ^= pValue2->Words.w0; + pValue1Result->Words.w1 ^= pValue2->Words.w1; + pValue1Result->Words.w2 ^= pValue2->Words.w2; + pValue1Result->Words.w3 ^= pValue2->Words.w3; +#endif + return pValue1Result; +} + + +/** + * Performs a bitwise left shift on a 64-bit unsigned integer value, assigning + * the result to it. + * + * @returns pValueResult. + * @param pValueResult The first value and result. + * @param cBits The number of bits to shift. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignShiftLeft(PRTUINT64U pValueResult, int cBits) +{ + RTUINT64U const InVal = *pValueResult; + if (cBits > 0) + { + /* (left shift) */ + if (cBits >= 64) + RTUInt64SetZero(pValueResult); + else if (cBits >= 32) + { + pValueResult->s.Lo = 0; + pValueResult->s.Hi = InVal.s.Lo << (cBits - 32); + } + else + { + pValueResult->s.Hi = InVal.s.Hi << cBits; + pValueResult->s.Hi |= InVal.s.Lo >> (32 - cBits); + pValueResult->s.Lo = InVal.s.Lo << cBits; + } + } + else if (cBits < 0) + { + /* (right shift) */ + cBits = -cBits; + if (cBits >= 64) + RTUInt64SetZero(pValueResult); + else if (cBits >= 32) + { + pValueResult->s.Hi = 0; + pValueResult->s.Lo = InVal.s.Hi >> (cBits - 32); + } + else + { + pValueResult->s.Lo = InVal.s.Lo >> cBits; + pValueResult->s.Lo |= InVal.s.Hi << (32 - cBits); + pValueResult->s.Hi = InVal.s.Hi >> cBits; + } + } + return pValueResult; +} + + +/** + * Performs a bitwise left shift on a 64-bit unsigned integer value, assigning + * the result to it. + * + * @returns pValueResult. + * @param pValueResult The first value and result. + * @param cBits The number of bits to shift. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignShiftRight(PRTUINT64U pValueResult, int cBits) +{ + return RTUInt64AssignShiftLeft(pValueResult, -cBits); +} + + +/** + * Performs a bitwise NOT on a 64-bit unsigned integer value, assigning the + * result to it. + * + * @returns pValueResult + * @param pValueResult The value and result. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignBitwiseNot(PRTUINT64U pValueResult) +{ +#if ARCH_BITS >= 32 + pValueResult->s.Hi = ~pValueResult->s.Hi; + pValueResult->s.Lo = ~pValueResult->s.Lo; +#else + pValueResult->Words.w0 = ~pValueResult->Words.w0; + pValueResult->Words.w1 = ~pValueResult->Words.w1; + pValueResult->Words.w2 = ~pValueResult->Words.w2; + pValueResult->Words.w3 = ~pValueResult->Words.w3; +#endif + return pValueResult; +} + + +/** + * Performs a boolean NOT on a 64-bit unsigned integer value, assigning the + * result to it. + * + * @returns pValueResult + * @param pValueResult The value and result. + */ +DECLINLINE(PRTUINT64U) RTUInt64AssignBooleanNot(PRTUINT64U pValueResult) +{ + return RTUInt64AssignBoolean(pValueResult, RTUInt64IsZero(pValueResult)); +} + + +/** + * Compares two 64-bit unsigned integer values. + * + * @retval 0 if equal. + * @retval -1 if the first value is smaller than the second. + * @retval 1 if the first value is larger than the second. + * + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(int) RTUInt64Compare(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + if (pValue1->s.Hi != pValue2->s.Hi) + return pValue1->s.Hi > pValue2->s.Hi ? 1 : -1; + if (pValue1->s.Lo != pValue2->s.Lo) + return pValue1->s.Lo > pValue2->s.Lo ? 1 : -1; + return 0; +#else + if (pValue1->Words.w3 != pValue2->Words.w3) + return pValue1->Words.w3 > pValue2->Words.w3 ? 1 : -1; + if (pValue1->Words.w2 != pValue2->Words.w2) + return pValue1->Words.w2 > pValue2->Words.w2 ? 1 : -1; + if (pValue1->Words.w1 != pValue2->Words.w1) + return pValue1->Words.w1 > pValue2->Words.w1 ? 1 : -1; + if (pValue1->Words.w0 != pValue2->Words.w0) + return pValue1->Words.w0 > pValue2->Words.w0 ? 1 : -1; + return 0; +#endif +} + + +/** + * Tests if a 64-bit unsigned integer value is smaller than another. + * + * @returns true if the first value is smaller, false if not. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(bool) RTUInt64IsSmaller(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + return pValue1->s.Hi < pValue2->s.Hi + || ( pValue1->s.Hi == pValue2->s.Hi + && pValue1->s.Lo < pValue2->s.Lo); +#else + return pValue1->Words.w3 < pValue2->Words.w3 + || ( pValue1->Words.w3 == pValue2->Words.w3 + && ( pValue1->Words.w2 < pValue2->Words.w2 + || ( pValue1->Words.w2 == pValue2->Words.w2 + && ( pValue1->Words.w1 < pValue2->Words.w1 + || ( pValue1->Words.w1 == pValue2->Words.w1 + && pValue1->Words.w0 < pValue2->Words.w0))))); +#endif +} + + +/** + * Tests if a 32-bit unsigned integer value is larger than another. + * + * @returns true if the first value is larger, false if not. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(bool) RTUInt64IsLarger(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + return pValue1->s.Hi > pValue2->s.Hi + || ( pValue1->s.Hi == pValue2->s.Hi + && pValue1->s.Lo > pValue2->s.Lo); +#else + return pValue1->Words.w3 > pValue2->Words.w3 + || ( pValue1->Words.w3 == pValue2->Words.w3 + && ( pValue1->Words.w2 > pValue2->Words.w2 + || ( pValue1->Words.w2 == pValue2->Words.w2 + && ( pValue1->Words.w1 > pValue2->Words.w1 + || ( pValue1->Words.w1 == pValue2->Words.w1 + && pValue1->Words.w0 > pValue2->Words.w0))))); +#endif +} + + +/** + * Tests if a 64-bit unsigned integer value is larger or equal than another. + * + * @returns true if the first value is larger or equal, false if not. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(bool) RTUInt64IsLargerOrEqual(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + return pValue1->s.Hi > pValue2->s.Hi + || ( pValue1->s.Hi == pValue2->s.Hi + && pValue1->s.Lo >= pValue2->s.Lo); +#else + return pValue1->Words.w3 > pValue2->Words.w3 + || ( pValue1->Words.w3 == pValue2->Words.w3 + && ( pValue1->Words.w2 > pValue2->Words.w2 + || ( pValue1->Words.w2 == pValue2->Words.w2 + && ( pValue1->Words.w1 > pValue2->Words.w1 + || ( pValue1->Words.w1 == pValue2->Words.w1 + && pValue1->Words.w0 >= pValue2->Words.w0))))); +#endif +} + + +/** + * Tests if two 64-bit unsigned integer values not equal. + * + * @returns true if equal, false if not equal. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(bool) RTUInt64IsEqual(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ +#if ARCH_BITS >= 32 + return pValue1->s.Hi == pValue2->s.Hi + && pValue1->s.Lo == pValue2->s.Lo; +#else + return pValue1->Words.w0 == pValue2->Words.w0 + && pValue1->Words.w1 == pValue2->Words.w1 + && pValue1->Words.w2 == pValue2->Words.w2 + && pValue1->Words.w3 == pValue2->Words.w3; +#endif +} + + +/** + * Tests if two 64-bit unsigned integer values are not equal. + * + * @returns true if not equal, false if equal. + * @param pValue1 The first value. + * @param pValue2 The second value. + */ +DECLINLINE(bool) RTUInt64IsNotEqual(PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + return !RTUInt64IsEqual(pValue1, pValue2); +} + + +/** + * Sets a bit in a 64-bit unsigned integer type. + * + * @returns pValueResult. + * @param pValueResult The input and output value. + * @param iBit The bit to set. + */ +DECLINLINE(PRTUINT64U) RTUInt64BitSet(PRTUINT64U pValueResult, unsigned iBit) +{ + if (iBit < 32) + { +#if ARCH_BITS >= 32 + pValueResult->s.Lo |= RT_BIT_32(iBit); +#else + if (iBit < 16) + pValueResult->Words.w0 |= UINT16_C(1) << iBit; + else + pValueResult->Words.w1 |= UINT16_C(1) << (iBit - 32); +#endif + } + else if (iBit < 64) + { +#if ARCH_BITS >= 32 + pValueResult->s.Hi |= UINT16_C(1) << (iBit - 32); +#else + if (iBit < 48) + pValueResult->Words.w2 |= UINT16_C(1) << (iBit - 64); + else + pValueResult->Words.w3 |= UINT16_C(1) << (iBit - 96); +#endif + } + return pValueResult; +} + + +/** + * Sets a bit in a 64-bit unsigned integer type. + * + * @returns pValueResult. + * @param pValueResult The input and output value. + * @param iBit The bit to set. + */ +DECLINLINE(PRTUINT64U) RTUInt64BitClear(PRTUINT64U pValueResult, unsigned iBit) +{ + if (iBit < 32) + { +#if ARCH_BITS >= 32 + pValueResult->s.Lo &= ~RT_BIT_32(iBit); +#else + if (iBit < 48) + pValueResult->Words.w0 &= ~(UINT16_C(1) << (iBit)); + else + pValueResult->Words.w1 &= ~(UINT16_C(1) << (iBit - 32)); +#endif + } + else if (iBit < 64) + { +#if ARCH_BITS >= 32 + pValueResult->s.Hi &= ~RT_BIT_32(iBit - 32); +#else + if (iBit < 48) + pValueResult->Words.w2 &= ~(UINT16_C(1) << (iBit - 64)); + else + pValueResult->Words.w3 &= ~(UINT16_C(1) << (iBit - 96)); +#endif + } + return pValueResult; +} + + +/** + * Tests if a bit in a 64-bit unsigned integer value is set. + * + * @returns pValueResult. + * @param pValueResult The input and output value. + * @param iBit The bit to test. + */ +DECLINLINE(bool) RTUInt64BitTest(PRTUINT64U pValueResult, unsigned iBit) +{ + bool fRc; + if (iBit < 32) + { +#if ARCH_BITS >= 32 + fRc = RT_BOOL(pValueResult->s.Lo & RT_BIT_32(iBit)); +#else + if (iBit < 16) + fRc = RT_BOOL(pValueResult->Words.w0 & (UINT16_C(1) << (iBit))); + else + fRc = RT_BOOL(pValueResult->Words.w1 & (UINT16_C(1) << (iBit - 16))); +#endif + } + else if (iBit < 64) + { +#if ARCH_BITS >= 32 + fRc = RT_BOOL(pValueResult->s.Hi & RT_BIT_64(iBit - 64)); +#else + if (iBit < 48) + fRc = RT_BOOL(pValueResult->Words.w2 & (UINT16_C(1) << (iBit - 32))); + else + fRc = RT_BOOL(pValueResult->Words.w3 & (UINT16_C(1) << (iBit - 48))); +#endif + } + else + fRc = false; + return fRc; +} + + +/** + * Set a range of bits a 64-bit unsigned integer value. + * + * @returns pValueResult. + * @param pValueResult The input and output value. + * @param iFirstBit The first bit to test. + * @param cBits The number of bits to set. + */ +DECLINLINE(PRTUINT64U) RTUInt64BitSetRange(PRTUINT64U pValueResult, unsigned iFirstBit, unsigned cBits) +{ + /* bounds check & fix. */ + if (iFirstBit < 64) + { + if (iFirstBit + cBits > 64) + cBits = 64 - iFirstBit; + +#if ARCH_BITS >= 32 + if (iFirstBit + cBits < 32) + pValueResult->s.Lo |= (RT_BIT_32(cBits) - 1) << iFirstBit; + else if (iFirstBit + cBits < 64 && iFirstBit >= 32) + pValueResult->s.Hi |= (RT_BIT_32(cBits) - 1) << (iFirstBit - 32); + else +#else + if (iFirstBit + cBits < 16) + pValueResult->Words.w0 |= ((UINT16_C(1) << cBits) - 1) << iFirstBit; + else if (iFirstBit + cBits < 32 && iFirstBit >= 16) + pValueResult->Words.w1 |= ((UINT16_C(1) << cBits) - 1) << (iFirstBit - 16); + else if (iFirstBit + cBits < 48 && iFirstBit >= 32) + pValueResult->Words.w2 |= ((UINT16_C(1) << cBits) - 1) << (iFirstBit - 32); + else if (iFirstBit + cBits < 64 && iFirstBit >= 48) + pValueResult->Words.w3 |= ((UINT16_C(1) << cBits) - 1) << (iFirstBit - 48); + else +#endif + while (cBits-- > 0) + RTUInt64BitSet(pValueResult, iFirstBit++); + } + return pValueResult; +} + + +/** + * Test if all the bits of a 64-bit unsigned integer value are set. + * + * @returns true if they are, false if they aren't. + * @param pValue The input and output value. + */ +DECLINLINE(bool) RTUInt64BitAreAllSet(PRTUINT64U pValue) +{ +#if ARCH_BITS >= 32 + return pValue->s.Hi == UINT32_MAX + && pValue->s.Lo == UINT32_MAX; +#else + return pValue->Words.w0 == UINT16_MAX + && pValue->Words.w1 == UINT16_MAX + && pValue->Words.w2 == UINT16_MAX + && pValue->Words.w3 == UINT16_MAX; +#endif +} + + +/** + * Test if all the bits of a 64-bit unsigned integer value are clear. + * + * @returns true if they are, false if they aren't. + * @param pValue The input and output value. + */ +DECLINLINE(bool) RTUInt64BitAreAllClear(PRTUINT64U pValue) +{ + return RTUInt64IsZero(pValue); +} + + +DECLINLINE(unsigned) RTUInt64BitCount(PCRTUINT64U pValue) +{ + unsigned cBits; + if (pValue->s.Hi != 0) + { +#if ARCH_BITS >= 32 + cBits = 32 + ASMBitLastSetU32(pValue->s.Hi); +#else + if (pValue->Words.w3) + cBits = 48 + ASMBitLastSetU16(pValue->Words.w3); + else + cBits = 32 + ASMBitLastSetU16(pValue->Words.w2); +#endif + } + else + { +#if ARCH_BITS >= 32 + cBits = ASMBitLastSetU32(pValue->s.Lo); +#else + if (pValue->Words.w1) + cBits = 16 + ASMBitLastSetU16(pValue->Words.w1); + else + cBits = 0 + ASMBitLastSetU16(pValue->Words.w0); +#endif + } + return cBits; +} + + +/** + * Divides a 64-bit unsigned integer value by another, returning both quotient + * and remainder. + * + * @returns pQuotient, NULL if pValue2 is 0. + * @param pQuotient Where to return the quotient. + * @param pRemainder Where to return the remainder. + * @param pValue1 The dividend value. + * @param pValue2 The divisor value. + */ +DECLINLINE(PRTUINT64U) RTUInt64DivRem(PRTUINT64U pQuotient, PRTUINT64U pRemainder, PCRTUINT64U pValue1, PCRTUINT64U pValue2) +{ + int iDiff; + + /* + * Sort out all the special cases first. + */ + /* Divide by zero or 1? */ + if (!pValue2->s.Hi) + { + if (!pValue2->s.Lo) + return NULL; + + if (pValue2->s.Lo == 1) + { + RTUInt64SetZero(pRemainder); + *pQuotient = *pValue1; + return pQuotient; + } + /** @todo RTUInt64DivModByU32 */ + } + + /* Dividend is smaller? */ + iDiff = RTUInt64Compare(pValue1, pValue2); + if (iDiff < 0) + { + *pRemainder = *pValue1; + RTUInt64SetZero(pQuotient); + } + + /* The values are equal? */ + else if (iDiff == 0) + { + RTUInt64SetZero(pRemainder); + RTUInt64AssignU8(pQuotient, 1); + } + else + { + /* + * Prepare. + */ + unsigned iBitAdder = RTUInt64BitCount(pValue1) - RTUInt64BitCount(pValue2); + RTUINT64U NormDivisor = *pValue2; + if (iBitAdder) + { + RTUInt64ShiftLeft(&NormDivisor, pValue2, iBitAdder); + if (RTUInt64IsLarger(&NormDivisor, pValue1)) + { + RTUInt64AssignShiftRight(&NormDivisor, 1); + iBitAdder--; + } + } + else + NormDivisor = *pValue2; + + RTUInt64SetZero(pQuotient); + *pRemainder = *pValue1; + + /* + * Do the division. + */ + if (RTUInt64IsLargerOrEqual(pRemainder, pValue2)) + { + for (;;) + { + if (RTUInt64IsLargerOrEqual(pRemainder, &NormDivisor)) + { + RTUInt64AssignSub(pRemainder, &NormDivisor); + RTUInt64AssignOrBit(pQuotient, iBitAdder); + } + if (RTUInt64IsSmaller(pRemainder, pValue2)) + break; + RTUInt64AssignShiftRight(&NormDivisor, 1); + iBitAdder--; + } + } + } + return pQuotient; +} + + +/** @} */ + +RT_C_DECLS_END + +#endif +