uint16_t setBit(uint16_t n, int8_t k) { uint16_t nx; nx = 0x1 << k; // set k bit of nx = 0; return n = nx | n; } 这个程序先左移k位,然后用这个第k位的1与原来的结果进行与操作,使特定的位保证是1。 resetBit函数 resetBit函数用来将特定的位清零。 uint16_t resetBit(uin...
// bittestandset.cpp// processor: x86, ARM, x64// This example uses several of the _bittest family of intrinsics// to implement a Flags class that allows bit level access to an// integer field.#include<stdio.h>#include<intrin.h>#pragmaintrinsic(_bittestandset, _bittestandreset,\ _bitt...
Bit(longnBit){ oldValues[nBit] = _bittestandreset(&flags, nBit); printf_s("Flags: 0x%x\n", flags); }unsignedcharGetFlagBit(longnBit){unsignedcharresult = _bittest(&flags, nBit); printf_s("Flags: 0x%x\n", flags);returnresult; }voidRestoreFlagBit(longnBit){if(oldValues[nBit])...
Video-overlay devices, the MCISEQ sequencer, and the MCIWAVE waveform-audio device do not support this flag. bitspersample bit_count Sets the number of bits per PCM (Pulse Code Modulation) sample played or recorded. The file is saved in this format. bytespersec byte_rate Sets the average ...
Setting and resetting a PLC output is essential in establishing a holding circuit for a transducer. Learn how to use set/reset instructions in MELSOFT series GX Works2 to latch and release an output.
bit test and reset btrq valid only under -xarch=amd64 bts{wlq} BTS bit test and set btsq valid only under -xarch=amd64 seta SETA set byte if above setae SETAE set byte if above or equal setb SETB set byte if below setbe SETBE set byte if below or equ...
ThePassescounter is decremented only when the applicationexecutespast the breakpoint in response to ag (Go)command. The counter is not decremented if you are stepping through the code or tracing past it. When thePassescounter reaches1, you can reset it only by clearing and resetting the break...
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Bmi1.X64.ResetLowestSetBit(UInt64) 方法 參考 意見反應 定義 命名空間: System.Runtime.Intrinsics.X86 組件: System.Runtime.Intrinsics.dll 來源: Bmi1.cs unsigned __int64 _blsr_u64 (unsigned __int64 a) BLSR reg, reg/m64 C# 複製 public static ulong ResetLowestSetBit (ulong value...