Cross Reference: /vbox/include/iprt/uint128.h

Lines Matching defs:cBits
393  * Shifts a 128-bit unsigned integer value @a cBits to the left.
398  * @param   cBits               The number of bits to shift it.
400 DECLINLINE(PRTUINT128U) RTUInt128ShiftLeft(PRTUINT128U pResult, PCRTUINT128U pValue, int cBits)
402     cBits &= 127;
403     if (cBits < 64)
405         pResult->s.Lo = pValue->s.Lo << cBits;
406         pResult->s.Hi = (pValue->s.Hi << cBits) | (pValue->s.Lo >> (64 - cBits));
411         pResult->s.Hi = pValue->s.Lo << (cBits - 64);
418  * Shifts a 128-bit unsigned integer value @a cBits to the right.
423  * @param   cBits               The number of bits to shift it.
425 DECLINLINE(PRTUINT128U) RTUInt128ShiftRight(PRTUINT128U pResult, PCRTUINT128U pValue, int cBits)
427     cBits &= 127;
428     if (cBits < 64)
430         pResult->s.Hi = pValue->s.Hi >> cBits;
431         pResult->s.Lo = (pValue->s.Lo >> cBits) | (pValue->s.Hi << (64 - cBits));
436         pResult->s.Lo = pValue->s.Hi >> (cBits - 64);
733  * @param   cBits           The number of bits to AND (counting from the first
736 DECLINLINE(PRTUINT128U) RTUInt128AssignAndNFirstBits(PRTUINT128U pValueResult, unsigned cBits)
738     if (cBits <= 64)
740         if (cBits != 64)
741             pValueResult->s.Lo &= (RT_BIT_64(cBits) - 1);
744     else if (cBits < 128)
745         pValueResult->s.Hi &= (RT_BIT_64(cBits - 64) - 1);
838  * @param   cBits           The number of bits to shift.
840 DECLINLINE(PRTUINT128U) RTUInt128AssignShiftLeft(PRTUINT128U pValueResult, int cBits)
844     if (cBits > 0)
847         if (cBits >= 128)
849         else if (cBits >= 64)
852             pValueResult->s.Hi  = InVal.s.Lo << (cBits - 64);
856             pValueResult->s.Hi  = InVal.s.Hi << cBits;
857             pValueResult->s.Hi |= InVal.s.Lo >> (64 - cBits);
858             pValueResult->s.Lo  = InVal.s.Lo << cBits;
861     else if (cBits < 0)
864         cBits = -cBits;
865         if (cBits >= 128)
867         else if (cBits >= 64)
870             pValueResult->s.Lo  = InVal.s.Hi >> (cBits - 64);
874             pValueResult->s.Lo  = InVal.s.Lo >> cBits;
875             pValueResult->s.Lo |= InVal.s.Hi << (64 - cBits);
876             pValueResult->s.Hi  = InVal.s.Hi >> cBits;
889  * @param   cBits           The number of bits to shift.
891 DECLINLINE(PRTUINT128U) RTUInt128AssignShiftRight(PRTUINT128U pValueResult, int cBits)
893     return RTUInt128AssignShiftLeft(pValueResult, -cBits);
1187  * @param   cBits           The number of bits to set.
1189 DECLINLINE(PRTUINT128U) RTUInt128BitSetRange(PRTUINT128U pValueResult, unsigned iFirstBit, unsigned cBits)
1194         if (iFirstBit + cBits > 128)
1195             cBits = 128 - iFirstBit;
1198         if (iFirstBit + cBits < 64)
1199             pValueResult->s.Lo |= (RT_BIT_64(cBits) - 1) << iFirstBit;
1200         else if (iFirstBit + cBits < 128 && iFirstBit >= 64)
1201             pValueResult->s.Hi |= (RT_BIT_64(cBits) - 1) << (iFirstBit - 64);
1204         if (iFirstBit + cBits < 32)
1205             pValueResult->DWords.dw0 |= (RT_BIT_32(cBits) - 1) << iFirstBit;
1206         else if (iFirstBit + cBits < 64 && iFirstBit >= 32)
1207             pValueResult->DWords.dw1 |= (RT_BIT_32(cBits) - 1) << (iFirstBit - 32);
1208         else if (iFirstBit + cBits < 96 && iFirstBit >= 64)
1209             pValueResult->DWords.dw2 |= (RT_BIT_32(cBits) - 1) << (iFirstBit - 64);
1210         else if (iFirstBit + cBits < 128 && iFirstBit >= 96)
1211             pValueResult->DWords.dw3 |= (RT_BIT_32(cBits) - 1) << (iFirstBit - 96);
1214             while (cBits-- > 0)
1263     uint32_t cBits;
1267             cBits = 96 + ASMBitLastSetU32(pValue->DWords.dw3);
1269             cBits = 64 + ASMBitLastSetU32(pValue->DWords.dw2);
1274             cBits = 32 + ASMBitLastSetU32(pValue->DWords.dw1);
1276             cBits =  0 + ASMBitLastSetU32(pValue->DWords.dw0);
1278     return cBits;