ARM64 内部函数

Microsoft C++ 编译器 (MSVC) 使以下内部函数在 ARM64 体系结构上可用。 有关 ARM 的详细信息,请参阅 ARM 开发人员文档网站的体系结构和软件开发工具部分。

NEON

适用于 ARM64 的 NEON 矢量指令集扩展提供 Single Instruction Multiple Data (SIMD) 功能。 它们类似于 x86 和 x64 体系结构处理器通用的 MMX 和 SSE 矢量指令集中的指令集。

根据头文件 arm64_neon.h,霓虹灯内部函数受到支持。 MSVC 对 NEON 内部函数的支持类似于 ARM64 编译器,ARM 信息中心网站上的 ARM NEON 内部函数参考中对此进行了记录。

特定于 ARM64 的内部函数列表

支持特定于 ARM64 的内部函数,如头文件中 intrin.h所示。

函数名称 说明 函数原型
__break BRK void __break(int)
__addx18byte void __addx18byte(unsigned long, unsigned char)
__addx18word void __addx18word(unsigned long, unsigned short)
__addx18dword void __addx18dword(unsigned long, unsigned long)
__addx18qword void __addx18qword(unsigned long, unsigned __int64)
__cas8 CASB unsigned __int8 __cas8(unsigned __int8 volatile* _Target, unsigned __int8 _Comp, unsigned __int8 _Value)
__cas16 CASH unsigned __int16 __cas16(unsigned __int16 volatile* _Target, unsigned __int16 _Comp, unsigned __int16 _Value)
__cas32 CAS unsigned __int32 __cas32(unsigned __int32 volatile* _Target, unsigned __int32 _Comp, unsigned __int32 _Value)
__cas64 CAS unsigned __int64 __cas64(unsigned __int64 volatile* _Target, unsigned __int64 _Comp, unsigned __int64 _Value)
__casa8 CASAB unsigned __int8 __casa8(unsigned __int8 volatile* _Target, unsigned __int8 _Comp, unsigned __int8 _Value)
__casa16 CASAH unsigned __int16 __casa16(unsigned __int16 volatile* _Target, unsigned __int16 _Comp, unsigned __int16 _Value)
__casa32 CASA unsigned __int32 __casa32(unsigned __int32 volatile* _Target, unsigned __int32 _Comp, unsigned __int32 _Value)
__casa64 CASA unsigned __int64 __casa64(unsigned __int64 volatile* _Target, unsigned __int64 _Comp, unsigned __int64 _Value)
__casl8 CASLB unsigned __int8 __casl8(unsigned __int8 volatile* _Target, unsigned __int8 _Comp, unsigned __int8 _Value)
__casl16 CASLH unsigned __int16 __casl16(unsigned __int16 volatile* _Target, unsigned __int16 _Comp, unsigned __int16 _Value)
__casl32 CASL unsigned __int32 __casl32(unsigned __int32 volatile* _Target, unsigned __int32 _Comp, unsigned __int32 _Value)
__casl64 CASL unsigned __int64 __casl64(unsigned __int64 volatile* _Target, unsigned __int64 _Comp, unsigned __int64 _Value)
__casal8 CASALB unsigned __int8 __casal8(unsigned __int8 volatile* _Target, unsigned __int8 _Comp, unsigned __int8 _Value)
__casal16 CASALH unsigned __int16 __casal16(unsigned __int16 volatile* _Target, unsigned __int16 _Comp, unsigned __int16 _Value)
__casal32 CASAL unsigned __int32 __casal32(unsigned __int32 volatile* _Target, unsigned __int32 _Comp, unsigned __int32 _Value)
__casal64 CASAL unsigned __int64 __casal64(unsigned __int64 volatile* _Target, unsigned __int64 _Comp, unsigned __int64 _Value)
__crc32b CRC32B unsigned __int32 __crc32b(unsigned __int32, unsigned __int32)
__crc32h CRC32H unsigned __int32 __crc32h(unsigned __int32, unsigned __int32)
__crc32w CRC32W unsigned __int32 __crc32w(unsigned __int32, unsigned __int32)
__crc32d CRC32X unsigned __int32 __crc32d(unsigned __int32, unsigned __int64)
__crc32cb CRC32CB unsigned __int32 __crc32cb(unsigned __int32, unsigned __int32)
__crc32ch CRC32CH unsigned __int32 __crc32ch(unsigned __int32, unsigned __int32)
__crc32cw CRC32CW unsigned __int32 __crc32cw(unsigned __int32, unsigned __int32)
__crc32cd CRC32CX unsigned __int32 __crc32cd(unsigned __int32, unsigned __int64)
__dmb DMB void __dmb(unsigned int _Type)

将一个内存屏障操作插入指令流中。 参数 _Type 指定屏障强制执行的限制类型。

有关可以强制执行的限制类型的详细信息,请参阅内存屏障限制
__dsb DSB void __dsb(unsigned int _Type)

将一个内存屏障操作插入指令流中。 参数 _Type 指定屏障强制执行的限制类型。

有关可以强制执行的限制类型的详细信息,请参阅内存屏障限制
__isb ISB void __isb(unsigned int _Type)

将一个内存屏障操作插入指令流中。 参数 _Type 指定屏障强制执行的限制类型。

有关可以强制执行的限制类型的详细信息,请参阅内存屏障限制
__getReg unsigned __int64 __getReg(int)
__getRegFp double __getRegFp(int)
__getCallerReg unsigned __int64 __getCallerReg(int)
__getCallerRegFp double __getCallerRegFp(int)
__hvc HVC unsigned int __hvc(unsigned int, ...)
__hlt HLT int __hlt(unsigned int, ...)
__incx18byte void __incx18byte(unsigned long)
__incx18word void __incx18word(unsigned long)
__incx18dword void __incx18dword(unsigned long)
__incx18qword void __incx18qword(unsigned long)
__iso_volatile_load16 __int16 __iso_volatile_load16(const volatile __int16 *)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_load32 __int32 __iso_volatile_load32(const volatile __int32 *)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_load64 __int64 __iso_volatile_load64(const volatile __int64 *)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_load8 __int8 __iso_volatile_load8(const volatile __int8 *)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_store16 void __iso_volatile_store16(volatile __int16 *, __int16)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_store32 void __iso_volatile_store32(volatile __int32 *, __int32)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_store64 void __iso_volatile_store64(volatile __int64 *, __int64)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__iso_volatile_store8 void __iso_volatile_store8(volatile __int8 *, __int8)

有关详细信息,请参阅 __iso_volatile_load/store 内部函数
__ldar8 LDARB unsigned __int8 __ldar8(unsigned __int8 volatile* _Target)
__ldar16 LDARH unsigned __int16 __ldar16(unsigned __int16 volatile* _Target)
__ldar32 LDAR unsigned __int32 __ldar32(unsigned __int32 volatile* _Target)
__ldar64 LDAR unsigned __int64 __ldar64(unsigned __int64 volatile* _Target)
__ldapr8 LDAPRB unsigned __int8 __ldapr8(unsigned __int8 volatile* _Target)
__ldapr16 LDAPRH unsigned __int16 __ldapr16(unsigned __int16 volatile* _Target)
__ldapr32 LDAPR unsigned __int32 __ldapr32(unsigned __int32 volatile* _Target)
__ldapr64 LDAPR unsigned __int64 __ldapr64(unsigned __int64 volatile* _Target)
__mulh __int64 __mulh(__int64, __int64)
__prefetch PRFM void __cdecl __prefetch(const void *)

采用预提取操作 PLDL1KEEP 为系统提供一个 PRFM 内存提示,即可快速访问指定地址处或附近的内存。 某些系统可能会选择优化此内存访问模式以提高运行时性能。 但是,从 c + + 语言的角度来看,此功能没有明显的影响,可能不执行任何操作。
__prefetch2 PRFM void __cdecl __prefetch(const void *, uint8_t prfop)

采用所提供的预提取操作为系统提供一个 PRFM 内存提示,即可快速访问指定地址处或附近的内存。 某些系统可能会选择优化此内存访问模式以提高运行时性能。 但是,从 c + + 语言的角度来看,此功能没有明显的影响,可能不执行任何操作。
__readx18byte unsigned char __readx18byte(unsigned long)
__readx18word unsigned short __readx18word(unsigned long)
__readx18dword unsigned long __readx18dword(unsigned long)
__readx18qword unsigned __int64 __readx18qword(unsigned long)
__setReg void __setReg(int, unsigned __int64)
__setRegFp void __setRegFp(int, double)
__setCallerReg void __setCallerReg(int, unsigned __int64)
__setCallerRegFp void __setCallerRegFp(int, double)
__sev SEV void __sev(void)
__static_assert void __static_assert(int, const char *)
__stlr8 STLRB void __stlr8(unsigned __int8 volatile* _Target, unsigned __int8 _Value)
__stlr16 STLRH void __stlr16(unsigned __int16 volatile* _Target, unsigned __int16 _Value)
__stlr32 STLR void __stlr32(unsigned __int32 volatile* _Target, unsigned __int32 _Value)
__stlr64 STLR void __stlr64(unsigned __int64 volatile* _Target, unsigned __int64 _Value)
__swp8 SWPB unsigned __int8 __swp8(unsigned __int8 volatile* _Target, unsigned __int8 _Value)
__swp16 SWPH unsigned __int16 __swp16(unsigned __int16 volatile* _Target, unsigned __int16 _Value)
__swp32 SWP unsigned __int32 __swp32(unsigned __int32 volatile* _Target, unsigned __int32 _Value)
__swp64 SWP unsigned __int64 __swp64(unsigned __int64 volatile* _Target, unsigned __int64 _Value)
__swpa8 SWPAB unsigned __int8 __swpa8(unsigned __int8 volatile* _Target, unsigned __int8 _Value)
__swpa16 SWPAH unsigned __int16 __swpa16(unsigned __int16 volatile* _Target, unsigned __int16 _Value)
__swpa32 SWPA unsigned __int32 __swpa32(unsigned __int32 volatile* _Target, unsigned __int32 _Value)
__swpa64 SWPA unsigned __int64 __swpa64(unsigned __int64 volatile* _Target, unsigned __int64 _Value)
__swpl8 SWPLB unsigned __int8 __swpl8(unsigned __int8 volatile* _Target, unsigned __int8 _Value)
__swpl16 SWPLH unsigned __int16 __swpl16(unsigned __int16 volatile* _Target, unsigned __int16 _Value)
__swpl32 SWPL unsigned __int32 __swpl32(unsigned __int32 volatile* _Target, unsigned __int32 _Value)
__swpl64 SWPL unsigned __int64 __swpl64(unsigned __int64 volatile* _Target, unsigned __int64 _Value)
__swpal8 SWPALB unsigned __int8 __swpal8(unsigned __int8 volatile* _Target, unsigned __int8 _Value)
__swpal16 SWPALH unsigned __int16 __swpal16(unsigned __int16 volatile* _Target, unsigned __int16 _Value)
__swpal32 SWPAL unsigned __int32 __swpal32(unsigned __int32 volatile* _Target, unsigned __int32 _Value)
__swpal64 SWPAL unsigned __int64 __swpal64(unsigned __int64 volatile* _Target, unsigned __int64 _Value)
__sys SYS unsigned int __sys(int, __int64)
__svc SVC unsigned int __svc(unsigned int, ...)
__wfe WFE void __wfe(void)
__wfi WFI void __wfi(void)
__writex18byte void __writex18byte(unsigned long, unsigned char)
__writex18word void __writex18word(unsigned long, unsigned short)
__writex18dword void __writex18dword(unsigned long, unsigned long)
__writex18qword void __writex18qword(unsigned long, unsigned __int64)
__umulh unsigned __int64 __umulh(unsigned __int64, unsigned __int64)
_CopyDoubleFromInt64 double _CopyDoubleFromInt64(__int64)
_CopyFloatFromInt32 float _CopyFloatFromInt32(__int32)
_CopyInt32FromFloat __int32 _CopyInt32FromFloat(float)
_CopyInt64FromDouble __int64 _CopyInt64FromDouble(double)
_CountLeadingOnes unsigned int _CountLeadingOnes(unsigned long)
_CountLeadingOnes64 unsigned int _CountLeadingOnes64(unsigned __int64)
_CountLeadingSigns unsigned int _CountLeadingSigns(long)
_CountLeadingSigns64 unsigned int _CountLeadingSigns64(__int64)
_CountLeadingZeros unsigned int _CountLeadingZeros(unsigned long)
_CountLeadingZeros64 unsigned int _CountLeadingZeros64(unsigned __int64)
_CountTrailingZeros unsigned int _CountTrailingZeros(unsigned long)
_CountTrailingZeros64 unsigned int _CountTrailingZeros64(unsigned __int64)
_CountOneBits unsigned int _CountOneBits(unsigned long)
_CountOneBits64 unsigned int _CountOneBits64(unsigned __int64)
_ReadStatusReg MRS __int64 _ReadStatusReg(int)
_WriteStatusReg MSR void _WriteStatusReg(int, __int64)

[返回顶部]

内存屏障限制

内部函数 __dmb(数据内存屏障)、__dsb(数据同步屏障)和 __isb(指令同步屏障)使用以下预定义值以根据共享域和受操作影响的访问类型对内存屏障限制进行指定。

限制值 说明
_ARM64_BARRIER_SY 完整系统,读取和写入操作。
_ARM64_BARRIER_ST 完整系统,只写操作。
_ARM64_BARRIER_LD 完整系统,只读操作。
_ARM64_BARRIER_ISH 内部可共享,读取和写入操作。
_ARM64_BARRIER_ISHST 内部可共享,只写操作。
_ARM64_BARRIER_ISHLD 内部可共享,只读操作。
_ARM64_BARRIER_NSH 不可共享,读取和写入操作。
_ARM64_BARRIER_NSHST 不可共享,只写操作。
_ARM64_BARRIER_NSHLD 不可共享,只读操作。
_ARM64_BARRIER_OSH 外部可共享,读取和写入操作。
_ARM64_BARRIER_OSHST 外部可共享,只写操作。
_ARM64_BARRIER_OSHLD 外部可共享,只读操作。

对于 __isb 内部函数,当前有效的唯一限制是 _ARM64_BARRIER_SY;其他所有值由体系结构进行保留。

__iso_volatile_load/store 内部函数

这些内部函数显式执行不进行编译器优化的加载和存储。

__int16 __iso_volatile_load16(const volatile __int16 * Location);
__int32 __iso_volatile_load32(const volatile __int32 * Location);
__int64 __iso_volatile_load64(const volatile __int64 * Location);
__int8 __iso_volatile_load8(const volatile __int8 * Location);

void __iso_volatile_store16(volatile __int16 * Location, __int16 Value);
void __iso_volatile_store32(volatile __int32 * Location, __int32 Value);
void __iso_volatile_store64(volatile __int64 * Location, __int64 Value);
void __iso_volatile_store8(volatile __int8 * Location, __int8 Value);

参数

位置
要从中读取或为其写入的内存位置的地址。


要写入指定内存位置的值(仅存储内部函数)。

返回值(仅加载内部函数)

由 Location 指定的内存位置的值

注解

你可以使用 __iso_volatile_load8/16/32/64__iso_volatile_store8/16/32/64 内部函数显式执行不进行编译器优化的内存访问。 编译器无法删除、合成或更改这些操作的相对顺序。 但是,它不会生成隐式硬件内存屏障。 因此,硬件仍可能对跨多个线程的可观察内存访问进行重新排序。 更准确地说,这些内部函数等效于在 /volatile:iso 下编译的以下表达式

int a = __iso_volatile_load32(p);    // equivalent to: int a = *(const volatile __int32*)p;
__iso_volatile_store32(p, a);        // equivalent to: *(volatile __int32*)p = a;

请注意内部函数采用易失性指针来适应易失性变量。 但是,没有关于使用可变指针作为参数的要求或建议。 如果使用常规的非易失类型,这些操作的语义完全相同。

有关 /volatile:iso 命令行参数的详细信息,请参阅 /volatile(volatile 关键字解释)

ARM64 支持来自其他体系结构的内部函数

下表列出了来自在 ARM64 平台上受支持的其他体系结构的内部函数。 如果 ARM64 上的内部函数的行为不同于它在其他硬件体系结构上的行为,将注明附加的详细信息。

函数名称 函数原型
__assume void __assume(int)
__code_seg void __code_seg(const char *)
__debugbreak void __cdecl __debugbreak(void)
__fastfail __declspec(noreturn) void __fastfail(unsigned int)
__nop void __nop(void)
__yield void __yield(void) 注意:在 ARM64 平台上,此函数生成 YIELD 指令。 此指令表示线程正在执行可从执行暂时挂起的任务,例如旋转锁,而不会对程序产生负面影响。 它使 CPU 能够在执行周期内执行其他任务,这些任务如果不执行则会被浪费掉。
_AddressOfReturnAddress void * _AddressOfReturnAddress(void)
_BitScanForward unsigned char _BitScanForward(unsigned long * _Index, unsigned long _Mask)
_BitScanForward64 unsigned char _BitScanForward64(unsigned long * _Index, unsigned __int64 _Mask)
_BitScanReverse unsigned char _BitScanReverse(unsigned long * _Index, unsigned long _Mask)
_BitScanReverse64 unsigned char _BitScanReverse64(unsigned long * _Index, unsigned __int64 _Mask)
_bittest unsigned char _bittest(long const *, long)
_bittest64 unsigned char _bittest64(__int64 const *, __int64)
_bittestandcomplement unsigned char _bittestandcomplement(long *, long)
_bittestandcomplement64 unsigned char _bittestandcomplement64(__int64 *, __int64)
_bittestandreset unsigned char _bittestandreset(long *, long)
_bittestandreset64 unsigned char _bittestandreset64(__int64 *, __int64)
_bittestandset unsigned char _bittestandset(long *, long)
_bittestandset64 unsigned char _bittestandset64(__int64 *, __int64)
_byteswap_uint64 unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64)
_byteswap_ulong unsigned long __cdecl _byteswap_ulong(unsigned long)
_byteswap_ushort unsigned short __cdecl _byteswap_ushort(unsigned short)
_disable void __cdecl _disable(void) 注意:在 ARM64 平台上,此函数生成指令 MSR DAIFCLR,#2;该指令仅作为内部函数提供
_enable void __cdecl _enable(void) 注意:在 ARM64 平台上,此函数生成指令 MSR DAIFSET,#2;该指令仅作为内部函数提供
_lrotl unsigned long __cdecl _lrotl(unsigned long, int)
_lrotr unsigned long __cdecl _lrotr(unsigned long, int)
_ReadBarrier void _ReadBarrier(void)
_ReadWriteBarrier void _ReadWriteBarrier(void)
_ReturnAddress void * _ReturnAddress(void)
_rotl unsigned int __cdecl _rotl(unsigned int _Value, int _Shift)
_rotl16 unsigned short _rotl16(unsigned short _Value, unsigned char _Shift)
_rotl64 unsigned __int64 __cdecl _rotl64(unsigned __int64 _Value, int _Shift)
_rotl8 unsigned char _rotl8(unsigned char _Value, unsigned char _Shift)
_rotr unsigned int __cdecl _rotr(unsigned int _Value, int _Shift)
_rotr16 unsigned short _rotr16(unsigned short _Value, unsigned char _Shift)
_rotr64 unsigned __int64 __cdecl _rotr64(unsigned __int64 _Value, int _Shift)
_rotr8 unsigned char _rotr8(unsigned char _Value, unsigned char _Shift)
_setjmpex int __cdecl _setjmpex(jmp_buf)
_WriteBarrier void _WriteBarrier(void)

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互锁内部函数

互锁内部函数是用于执行原子读取-修改-写入操作的一组内部函数。 其中一些互锁内部函数通用于所有平台。 因为它们数量很多,所以在这里单独列出。 由于它们的定义大多是冗余的,因此,用一般术语来考虑更加容易。 它们的名称可用于派生确切行为。

下表总结了非 bittest 互锁内部函数的 ARM64 支持。 表中的每个单元格都对应一个名称,这些名称的派生方式是将该行的最左侧单元格中的操作名和该列的最上面单元格中的类型名附加到 _Interlocked。 例如,第 Xor 行和第 8 列交叉处的单元格对应于 _InterlockedXor8 并且完全受支持。 大部分受支持的函数提供以下可选后缀:_acq_rel_nf_acq 后缀表示“获取”语义,而 _rel 后缀表示“发布”语义。 _nf 或“no fence”后缀是 ARM 和 ARM64 独有的,将在下一节中进行讨论。

Operation 8 16 32 64 128 P
添加 完全 完全
完全 完全 完全 完全
CompareExchange 完整 完全 完全 完全 完全 完全
递减 完全 完全 完全
Exchange 完全 完全 完全 完全 完全
ExchangeAdd 完整 完全 完全 完全
增量 完全 完全 完全
完全 完全 完全 完全
Xor 完全 完全 完全 完全

密钥:

  • 完全:支持普通、_acq_rel_nf 窗体。

  • :不支持

_nf (no fence) 后缀

_nf 或“no fence”后缀表示操作不表现为任何类型的内存屏障,与表现为某种类型屏障的其他三种形式(无格式、_acq_rel)相反。 _nf 形式的一种可能用途是维护统计信息计数器,该计数器由多个线程同时更新,但在执行多个线程时不会使用该计数器的值。

互锁内部函数列表

函数名称 函数原型
_InterlockedAdd long _InterlockedAdd(long _volatile *, long)
_InterlockedAdd64 __int64 _InterlockedAdd64(__int64 volatile *, __int64)
_InterlockedAdd64_acq __int64 _InterlockedAdd64_acq(__int64 volatile *, __int64)
_InterlockedAdd64_nf __int64 _InterlockedAdd64_nf(__int64 volatile *, __int64)
_InterlockedAdd64_rel __int64 _InterlockedAdd64_rel(__int64 volatile *, __int64)
_InterlockedAdd_acq long _InterlockedAdd_acq(long volatile *, long)
_InterlockedAdd_nf long _InterlockedAdd_nf(long volatile *, long)
_InterlockedAdd_rel long _InterlockedAdd_rel(long volatile *, long)
_InterlockedAnd long _InterlockedAnd(long volatile *, long)
_InterlockedAnd16 short _InterlockedAnd16(short volatile *, short)
_InterlockedAnd16_acq short _InterlockedAnd16_acq(short volatile *, short)
_InterlockedAnd16_nf short _InterlockedAnd16_nf(short volatile *, short)
_InterlockedAnd16_rel short _InterlockedAnd16_rel(short volatile *, short)
_InterlockedAnd64 __int64 _InterlockedAnd64(__int64 volatile *, __int64)
_InterlockedAnd64_acq __int64 _InterlockedAnd64_acq(__int64 volatile *, __int64)
_InterlockedAnd64_nf __int64 _InterlockedAnd64_nf(__int64 volatile *, __int64)
_InterlockedAnd64_rel __int64 _InterlockedAnd64_rel(__int64 volatile *, __int64)
_InterlockedAnd8 char _InterlockedAnd8(char volatile *, char)
_InterlockedAnd8_acq char _InterlockedAnd8_acq(char volatile *, char)
_InterlockedAnd8_nf char _InterlockedAnd8_nf(char volatile *, char)
_InterlockedAnd8_rel char _InterlockedAnd8_rel(char volatile *, char)
_InterlockedAnd_acq long _InterlockedAnd_acq(long volatile *, long)
_InterlockedAnd_nf long _InterlockedAnd_nf(long volatile *, long)
_InterlockedAnd_rel long _InterlockedAnd_rel(long volatile *, long)
_InterlockedCompareExchange long __cdecl _InterlockedCompareExchange(long volatile *, long, long)
_InterlockedCompareExchange_acq long _InterlockedCompareExchange_acq(long volatile *, long, long)
_InterlockedCompareExchange_nf long _InterlockedCompareExchange_nf(long volatile *, long, long)
_InterlockedCompareExchange_rel long _InterlockedCompareExchange_rel(long volatile *, long, long)
_InterlockedCompareExchange16 short _InterlockedCompareExchange16(short volatile *, short, short)
_InterlockedCompareExchange16_acq short _InterlockedCompareExchange16_acq(short volatile *, short, short)
_InterlockedCompareExchange16_nf short _InterlockedCompareExchange16_nf(short volatile *, short, short)
_InterlockedCompareExchange16_rel short _InterlockedCompareExchange16_rel(short volatile *, short, short)
_InterlockedCompareExchange64 __int64 _InterlockedCompareExchange64(__int64 volatile *, __int64, __int64)
_InterlockedCompareExchange64_acq __int64 _InterlockedCompareExchange64_acq(__int64 volatile *, __int64, __int64)
_InterlockedCompareExchange64_nf __int64 _InterlockedCompareExchange64_nf(__int64 volatile *, __int64, __int64)
_InterlockedCompareExchange64_rel __int64 _InterlockedCompareExchange64_rel(__int64 volatile *, __int64, __int64)
_InterlockedCompareExchange8 char _InterlockedCompareExchange8(char volatile *, char, char)
_InterlockedCompareExchange8_acq char _InterlockedCompareExchange8_acq(char volatile *, char, char)
_InterlockedCompareExchange8_nf char _InterlockedCompareExchange8_nf(char volatile *, char, char)
_InterlockedCompareExchange8_rel char _InterlockedCompareExchange8_rel(char volatile *, char, char)
_InterlockedCompareExchangePointer void * _InterlockedCompareExchangePointer(void * volatile *, void *, void *)
_InterlockedCompareExchangePointer_acq void * _InterlockedCompareExchangePointer_acq(void * volatile *, void *, void *)
_InterlockedCompareExchangePointer_nf void * _InterlockedCompareExchangePointer_nf(void * volatile *, void *, void *)
_InterlockedCompareExchangePointer_rel void * _InterlockedCompareExchangePointer_rel(void * volatile *, void *, void *)
_InterlockedCompareExchange128 unsigned char _InterlockedCompareExchange128(__int64 volatile * _Destination, __int64 _ExchangeHigh, __int64 _ExchangeLow, __int64 * _ComparandResult)
_InterlockedCompareExchange128_acq unsigned char _InterlockedCompareExchange128_acq(__int64 volatile * _Destination, __int64 _ExchangeHigh, __int64 _ExchangeLow, __int64 * _ComparandResult)
_InterlockedCompareExchange128_nf unsigned char _InterlockedCompareExchange128_nf(__int64 volatile * _Destination, __int64 _ExchangeHigh, __int64 _ExchangeLow, __int64 * _ComparandResult)
_InterlockedCompareExchange128_rel unsigned char _InterlockedCompareExchange128_rel(__int64 volatile * _Destination, __int64 _ExchangeHigh, __int64 _ExchangeLow, __int64 * _ComparandResult)
_InterlockedDecrement long __cdecl _InterlockedDecrement(long volatile *)
_InterlockedDecrement16 short _InterlockedDecrement16(short volatile *)
_InterlockedDecrement16_acq short _InterlockedDecrement16_acq(short volatile *)
_InterlockedDecrement16_nf short _InterlockedDecrement16_nf(short volatile *)
_InterlockedDecrement16_rel short _InterlockedDecrement16_rel(short volatile *)
_InterlockedDecrement64 __int64 _InterlockedDecrement64(__int64 volatile *)
_InterlockedDecrement64_acq __int64 _InterlockedDecrement64_acq(__int64 volatile *)
_InterlockedDecrement64_nf __int64 _InterlockedDecrement64_nf(__int64 volatile *)
_InterlockedDecrement64_rel __int64 _InterlockedDecrement64_rel(__int64 volatile *)
_InterlockedDecrement_acq long _InterlockedDecrement_acq(long volatile *)
_InterlockedDecrement_nf long _InterlockedDecrement_nf(long volatile *)
_InterlockedDecrement_rel long _InterlockedDecrement_rel(long volatile *)
_InterlockedExchange long __cdecl _InterlockedExchange(long volatile * _Target, long)
_InterlockedExchange_acq long _InterlockedExchange_acq(long volatile * _Target, long)
_InterlockedExchange_nf long _InterlockedExchange_nf(long volatile * _Target, long)
_InterlockedExchange_rel long _InterlockedExchange_rel(long volatile * _Target, long)
_InterlockedExchange16 short _InterlockedExchange16(short volatile * _Target, short)
_InterlockedExchange16_acq short _InterlockedExchange16_acq(short volatile * _Target, short)
_InterlockedExchange16_nf short _InterlockedExchange16_nf(short volatile * _Target, short)
_InterlockedExchange16_rel short _InterlockedExchange16_rel(short volatile * _Target, short)
_InterlockedExchange64 __int64 _InterlockedExchange64(__int64 volatile * _Target, __int64)
_InterlockedExchange64_acq __int64 _InterlockedExchange64_acq(__int64 volatile * _Target, __int64)
_InterlockedExchange64_nf __int64 _InterlockedExchange64_nf(__int64 volatile * _Target, __int64)
_InterlockedExchange64_rel __int64 _InterlockedExchange64_rel(__int64 volatile * _Target, __int64)
_InterlockedExchange8 char _InterlockedExchange8(char volatile * _Target, char)
_InterlockedExchange8_acq char _InterlockedExchange8_acq(char volatile * _Target, char)
_InterlockedExchange8_nf char _InterlockedExchange8_nf(char volatile * _Target, char)
_InterlockedExchange8_rel char _InterlockedExchange8_rel(char volatile * _Target, char)
_InterlockedExchangeAdd long __cdecl _InterlockedExchangeAdd(long volatile *, long)
_InterlockedExchangeAdd16 short _InterlockedExchangeAdd16(short volatile *, short)
_InterlockedExchangeAdd16_acq short _InterlockedExchangeAdd16_acq(short volatile *, short)
_InterlockedExchangeAdd16_nf short _InterlockedExchangeAdd16_nf(short volatile *, short)
_InterlockedExchangeAdd16_rel short _InterlockedExchangeAdd16_rel(short volatile *, short)
_InterlockedExchangeAdd64 __int64 _InterlockedExchangeAdd64(__int64 volatile *, __int64)
_InterlockedExchangeAdd64_acq __int64 _InterlockedExchangeAdd64_acq(__int64 volatile *, __int64)
_InterlockedExchangeAdd64_nf __int64 _InterlockedExchangeAdd64_nf(__int64 volatile *, __int64)
_InterlockedExchangeAdd64_rel __int64 _InterlockedExchangeAdd64_rel(__int64 volatile *, __int64)
_InterlockedExchangeAdd8 char _InterlockedExchangeAdd8(char volatile *, char)
_InterlockedExchangeAdd8_acq char _InterlockedExchangeAdd8_acq(char volatile *, char)
_InterlockedExchangeAdd8_nf char _InterlockedExchangeAdd8_nf(char volatile *, char)
_InterlockedExchangeAdd8_rel char _InterlockedExchangeAdd8_rel(char volatile *, char)
_InterlockedExchangeAdd_acq long _InterlockedExchangeAdd_acq(long volatile *, long)
_InterlockedExchangeAdd_nf long _InterlockedExchangeAdd_nf(long volatile *, long)
_InterlockedExchangeAdd_rel long _InterlockedExchangeAdd_rel(long volatile *, long)
_InterlockedExchangePointer void * _InterlockedExchangePointer(void * volatile * _Target, void *)
_InterlockedExchangePointer_acq void * _InterlockedExchangePointer_acq(void * volatile * _Target, void *)
_InterlockedExchangePointer_nf void * _InterlockedExchangePointer_nf(void * volatile * _Target, void *)
_InterlockedExchangePointer_rel void * _InterlockedExchangePointer_rel(void * volatile * _Target, void *)
_InterlockedIncrement long __cdecl _InterlockedIncrement(long volatile *)
_InterlockedIncrement16 short _InterlockedIncrement16(short volatile *)
_InterlockedIncrement16_acq short _InterlockedIncrement16_acq(short volatile *)
_InterlockedIncrement16_nf short _InterlockedIncrement16_nf(short volatile *)
_InterlockedIncrement16_rel short _InterlockedIncrement16_rel(short volatile *)
_InterlockedIncrement64 __int64 _InterlockedIncrement64(__int64 volatile *)
_InterlockedIncrement64_acq __int64 _InterlockedIncrement64_acq(__int64 volatile *)
_InterlockedIncrement64_nf __int64 _InterlockedIncrement64_nf(__int64 volatile *)
_InterlockedIncrement64_rel __int64 _InterlockedIncrement64_rel(__int64 volatile *)
_InterlockedIncrement_acq long _InterlockedIncrement_acq(long volatile *)
_InterlockedIncrement_nf long _InterlockedIncrement_nf(long volatile *)
_InterlockedIncrement_rel long _InterlockedIncrement_rel(long volatile *)
_InterlockedOr long _InterlockedOr(long volatile *, long)
_InterlockedOr16 short _InterlockedOr16(short volatile *, short)
_InterlockedOr16_acq short _InterlockedOr16_acq(short volatile *, short)
_InterlockedOr16_nf short _InterlockedOr16_nf(short volatile *, short)
_InterlockedOr16_rel short _InterlockedOr16_rel(short volatile *, short)
_InterlockedOr64 __int64 _InterlockedOr64(__int64 volatile *, __int64)
_InterlockedOr64_acq __int64 _InterlockedOr64_acq(__int64 volatile *, __int64)
_InterlockedOr64_nf __int64 _InterlockedOr64_nf(__int64 volatile *, __int64)
_InterlockedOr64_rel __int64 _InterlockedOr64_rel(__int64 volatile *, __int64)
_InterlockedOr8 char _InterlockedOr8(char volatile *, char)
_InterlockedOr8_acq char _InterlockedOr8_acq(char volatile *, char)
_InterlockedOr8_nf char _InterlockedOr8_nf(char volatile *, char)
_InterlockedOr8_rel char _InterlockedOr8_rel(char volatile *, char)
_InterlockedOr_acq long _InterlockedOr_acq(long volatile *, long)
_InterlockedOr_nf long _InterlockedOr_nf(long volatile *, long)
_InterlockedOr_rel long _InterlockedOr_rel(long volatile *, long)
_InterlockedXor long _InterlockedXor(long volatile *, long)
_InterlockedXor16 short _InterlockedXor16(short volatile *, short)
_InterlockedXor16_acq short _InterlockedXor16_acq(short volatile *, short)
_InterlockedXor16_nf short _InterlockedXor16_nf(short volatile *, short)
_InterlockedXor16_rel short _InterlockedXor16_rel(short volatile *, short)
_InterlockedXor64 __int64 _InterlockedXor64(__int64 volatile *, __int64)
_InterlockedXor64_acq __int64 _InterlockedXor64_acq(__int64 volatile *, __int64)
_InterlockedXor64_nf __int64 _InterlockedXor64_nf(__int64 volatile *, __int64)
_InterlockedXor64_rel __int64 _InterlockedXor64_rel(__int64 volatile *, __int64)
_InterlockedXor8 char _InterlockedXor8(char volatile *, char)
_InterlockedXor8_acq char _InterlockedXor8_acq(char volatile *, char)
_InterlockedXor8_nf char _InterlockedXor8_nf(char volatile *, char)
_InterlockedXor8_rel char _InterlockedXor8_rel(char volatile *, char)
_InterlockedXor_acq long _InterlockedXor_acq(long volatile *, long)
_InterlockedXor_nf long _InterlockedXor_nf(long volatile *, long)
_InterlockedXor_rel long _InterlockedXor_rel(long volatile *, long)

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_interlockedbittest 内部函数

纯互锁的 bit 测试内部函数通用于所有平台。 ARM64 添加了 _acq_rel_nf 变体,它们只是修改操作的屏障语义,如本文前面的 _nf (no fence) 后缀中所述。

函数名称 函数原型
_interlockedbittestandreset unsigned char _interlockedbittestandreset(long volatile *, long)
_interlockedbittestandreset_acq unsigned char _interlockedbittestandreset_acq(long volatile *, long)
_interlockedbittestandreset_nf unsigned char _interlockedbittestandreset_nf(long volatile *, long)
_interlockedbittestandreset_rel unsigned char _interlockedbittestandreset_rel(long volatile *, long)
_interlockedbittestandreset64 unsigned char _interlockedbittestandreset64(__int64 volatile *, __int64)
_interlockedbittestandreset64_acq unsigned char _interlockedbittestandreset64_acq(__int64 volatile *, __int64)
_interlockedbittestandreset64_nf unsigned char _interlockedbittestandreset64_nf(__int64 volatile *, __int64)
_interlockedbittestandreset64_rel unsigned char _interlockedbittestandreset64_rel(__int64 volatile *, __int64)
_interlockedbittestandset unsigned char _interlockedbittestandset(long volatile *, long)
_interlockedbittestandset_acq unsigned char _interlockedbittestandset_acq(long volatile *, long)
_interlockedbittestandset_nf unsigned char _interlockedbittestandset_nf(long volatile *, long)
_interlockedbittestandset_rel unsigned char _interlockedbittestandset_rel(long volatile *, long)
_interlockedbittestandset64 unsigned char _interlockedbittestandset64(__int64 volatile *, __int64)
_interlockedbittestandset64_acq unsigned char _interlockedbittestandset64_acq(__int64 volatile *, __int64)
_interlockedbittestandset64_nf unsigned char _interlockedbittestandset64_nf(__int64 volatile *, __int64)
_interlockedbittestandset64_rel unsigned char _interlockedbittestandset64_rel(__int64 volatile *, __int64)

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另请参阅

编译器内部函数
ARM 内部函数
ARM 汇编程序参考
C++ 语言参考