源自：https://sourceforge.net/p/predef/wiki/Architectures/
Architectures
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| Type | Macro | Description |
| Identification | __alpha__ | Defined by GNU C |
| Version | __alpha_ev'V'__ | V = Version |
| Identification | __alpha | Defined by DEC C |
| Identification | _M_ALPHA | Defined by Visual Studio |
Example
| CPU | Macro |
| Alpha EV4 | __alpha_ev4__ |
| Alpha EV5 | __alpha_ev5__ |
| Alpha EV6 | __alpha_ev6__ |
| Type | Macro | Description |
| Identification | __amd64__
__amd64
__x86_64__
__x86_64
| Defined by GNU C and Sun Studio |
| Identification | _M_X64
_M_AMD64 | Defined by Visual Studio |
Notice that x32 can be detected by checking if the CPU uses the ILP32 data model.
| Type | Macro | Description |
| Identification | __arm__ | Defined by GNU C and RealView |
| Identification | __thumb__ | Defined by GNU C and RealView in Thumb mode |
| Version | __ARM_ARCH_'V'__ | V = Version
Defined by GNU C 1 |
| Identification | __TARGET_ARCH_ARM
__TARGET_ARCH_THUMB | Defined by RealView |
| Version | __TARGET_ARCH_ARM = V
__TARGET_ARCH_THUMB = V | V = Version |
| Version | __TARGET_ARCH_'VR' | VR = Version and Revision |
| Identification | _ARM | Defined by ImageCraft C |
| Identification | _M_ARM | Defined by Visual Studio |
| Identification | _M_ARMT | Defined by Visual Studio in Thumb mode |
| Version | _M_ARM = V | V = Version |
| Identification | __arm | Defined by Diab |
Example
| CPU | Macro | _M_ARM |
| ARM 2 | __ARM_ARCH_2__ |
|
| ARM 3 | __ARM_ARCH_3__
__ARM_ARCH_3M__ |
|
| ARM 4T | __ARM_ARCH_4T__
__TARGET_ARM_4T |
|
| ARM 5 | __ARM_ARCH_5__
__ARM_ARCH_5E__ | 5 |
| ARM 5T | __ARM_ARCH_5T__
__ARM_ARCH_5TE__
__ARM_ARCH_5TEJ__ |
|
| ARM 6 | __ARM_ARCH_6__
__ARM_ARCH_6J__
__ARM_ARCH_6K__
__ARM_ARCH_6Z__
__ARM_ARCH_6ZK__ | 6 |
| ARM 6T2 | __ARM_ARCH_6T2__ |
|
| ARM 7 | __ARM_ARCH_7__
__ARM_ARCH_7A__
__ARM_ARCH_7R__
__ARM_ARCH_7M__
__ARM_ARCH_7S__ | 7 |
| Type | Macro | Description |
| Identification | __aarch64__ | Defined by GNU C 1 |
| Type | Macro | Description |
| Identification | __bfin
__BFIN__ | Defined by GNU C |
| Type | Macro | Description |
| Identification | __convex__ | Defined by GNU C |
| Version | __convex_'V'__ | V = Version |
Example
| CPU | Macro |
| Convex C1 | __convex_c1__ |
| Convex C2 | __convex_c2__ |
| Convex C32xx series | __convex_c32__ |
| Convex C34xx series | __convex_c34__ |
| Convex C38xx series | __convex_c38__ |
| Type | Macro |
|
| Identification | __epiphany__ |
|
| Type | Macro | Description |
| Identification | __hppa__ | Defined by GNU C |
| Identification | __HPPA__ | Defined by Stratus VOS C |
| Identification | __hppa |
|
| Version | _PA_RISC'V'_'R' | V = Version
R = Revision |
See also OpenPA.net.
Example
| CPU | Macro |
| PA RISC 1.0 | _PA_RISC1_0 |
| PA RISC 1.1 | _PA_RISC1_1
__HPPA11__
__PA7100__ |
| PA RISC 2.0 | _PA_RISC2_0
__RISC2_0__
__HPPA20__
__PA8000__ |
| Type | Macro | Format | Description |
| Identification | i386
__i386
__i386__ |
| Defined by GNU C |
| Version | __i386__
__i486__
__i586__
__i686__ |
| Defined by GNU C |
| Identification | __i386 |
| Defined by Sun Studio |
| Identification | __i386
__IA32__ |
| Defined by Stratus VOS C |
| Identification | _M_I86 |
| Only defined for 16-bits architectures
Defined by Visual Studio, Digital Mars, and Watcom C/C++ (see note below) |
| Identification | _M_IX86 |
| Only defined for 32-bits architectures
Defined by Visual Studio, Intel C/C++, Digital Mars, and Watcom C/C++ |
| Version | _M_IX86 | V00 | V = Version |
| Identification | __X86__ |
| Defined by Watcom C/C++ |
| Identification | _X86_ |
| Defined by MinGW32 |
| Identification | __THW_INTEL__ |
| Defined by XL C/C++ |
| Identification | __I86__ |
| Defined by Digital Mars |
| Version | __I86__ | V | V = Version |
| Identification | __INTEL__ |
| Defined by CodeWarrior |
| Identification | __386 |
| Defined by Diab |
Notice that Watcom C/C++ defines _M_IX86 for both 16-bits and 32-bits architectures. Use __386__ or _M_I386 to detect 32-bits architectures in this case.
Notice that the Stratus VOS is big-endian on IA32, so these macros cannot be used to detect endianness if __VOS__ is set.
Example
| CPU | _M_IX86 | __I86__ |
| 80386 | 300 | 3 |
| 80486 | 400 | 4 |
| Pentium | 500 | 5 |
| Pentium Pro/II | 600 | 6 |
| Type | Macro | Format | Description |
| Identification | __ia64__
_IA64
__IA64__ |
| Defined by GNU C |
| Identification | __ia64 |
| Defined by HP aCC |
| Identification | _M_IA64 |
| Defined by Visual Studio |
| Identification | _M_IA64 |
| Defined by Intel C/C++ |
| Version | _M_IA64 | ? |
|
| Identification | __itanium__ |
| Defined by Intel C/C++ |
Example
| CPU | _M_IA64 (Intel C/C++) |
| 64100 |
| Type | Macro | Description |
| Identification | __m68k__ | Defined by GNU C |
| Version | __mc'V'__
__mc'V'
mc'V' | V = Version |
| Identification | M68000 | Defined by SAS/C |
| Identification | __MC68K__ | Defined by Stratus VOS C |
| Version | __MC'V'__ | V = Version |
Example
| CPU | Macro |
| 68000 | __mc68000__
__MC68000__ |
| 68010 | __mc68010__ |
| 68020 | __mc68020__
__MC68020__ |
| 68030 | __mc68030__
__MC68030__ |
| 68040 | __mc68040__ |
| 68060 | __mc68060__ |
| Type | Macro | Description |
| Identification | __mips__
mips | Defined by GNU C |
| Version | _MIPS_ISA = _MIPS_ISA_MIPS'V' | V = MIPS ISA level |
| Version | _R3000
_R4000
_R5900 |
|
| Identification | __mips | Defined by MIPSpro and GNU C |
| Version | __mips | The value indicates the MIPS ISA (Instruction Set Architecture) level |
| Version | __MIPS_ISA'V'__ | V = MIPS ISA level |
| Identification | __MIPS__ | Defined by Metrowerks |
Example
| CPU | _MIPS_ISA | GNU C Macro | __mips | MIPSpro Macro |
| R2000 | _MIPS_ISA_MIPS1 |
| 1 |
|
| R3000 | _MIPS_ISA_MIPS1 | _R3000 | 1 |
|
| R6000 | _MIPS_ISA_MIPS2 |
| 2 | __MIPS_ISA2__ |
| R4000 |
| _R4000 |
|
|
| R4400 | _MIPS_ISA_MIPS3 |
| 3 | __MIPS_ISA3__ |
| R8000 | _MIPS_ISA_MIPS4 |
| 4 | __MIPS_ISA4__ |
| R10000 | _MIPS_ISA_MIPS4 |
| 4 | __MIPS_ISA4__ |
| Type | Macro | Description |
| Identification | __powerpc
__powerpc__
__powerpc64__
__POWERPC__
__ppc__
__ppc64__
__PPC__
__PPC64__
_ARCH_PPC
_ARCH_PPC64 | Defined by GNU C |
| Version | __ppc'V'__ | V = Version |
| Identification | _M_PPC | Defined by Visual Studio |
| Version | _M_PPC | ? |
| Identification | _ARCH_PPC
_ARCH_PPC64 | Defined by XL C/C++ |
| Version | _ARCH_'V' | V = Version |
| Version | __PPCGECKO__ | Gekko
Defined by CodeWarrior |
| Version | __PPCBROADWAY__ | Broadway
Defined by CodeWarrior |
| Version | _XENON | Xenon |
| Identification | __ppc | Defined by Diab |
Example
| CPU | _M_PPC | Macro | XL Macro |
| PowerPC 440 |
|
| _ARCH_440 |
| PowerPC 450 |
|
| _ARCH_450 |
| PowerPC 601 | 601 | __ppc601__ | _ARCH_601 |
| PowerPC 603 | 603 | __ppc603__ | _ARCH_603 |
| PowerPC 604 | 604 | __ppc604__ | _ARCH_604 |
| PowerPC 620 | 620 |
|
|
Pyramid 9810
| Type | Macro |
| Identification | pyr |
| Type | Macro | Description |
| Identification | __THW_RS6000 | Defined by XL C/C++ |
| Identification | _IBMR2 |
|
| Identification | _POWER |
|
| Identification | _ARCH_PWR
_ARCH_PWR2
_ARCH_PWR3
_ARCH_PWR4 |
|
| Type | Macro | Description |
| Identification | __sparc__ | Defined by GNU C |
| Identification | __sparc | Defined by Sun Studio |
| Version | __sparc_v8__
__sparc_v9__ | Defined by GNU C |
| Version | __sparcv8
__sparcv9 | Defined by Sun Studio |
Example
| CPU | Sun Studio Macro | GNU C Macro |
| SPARC v8 (SuperSPARC) | __sparcv8 | __sparc_v8__ |
| SPARC v9 (UltraSPARC) | __sparcv9 | __sparc_v9__ |
| Type | Macro | Description |
| Identification | __sh__ | Defined by GNU C |
| Version | __sh1__
__sh2__
__sh3__
__SH3__
__SH4__
__SH5__ |
|
| Type | Macro | Description |
| Identification | __370__
__THW_370__ | Identifies System/370
Defined by XL C/C++ |
| Identification | __s390__ | Identifies System/390
Defined by GNU C |
| Identification | __s390x__ | Identifies z/Architecture
Defined by GNU C |
| Identification | __zarch__ | Identifies z/Architecture
Defined by clang |
| Identification | __SYSC_ZARCH__ | Identifies z/Architecture
Defined by Systems/C |
| Type | Macro | Description |
| Identification | _TMS320C2XX
__TMS320C2000__ | C2000 series |
| Identification | _TMS320C5X
__TMS320C55X__ | C5000 series |
| Identification | _TMS320C6X
__TMS320C6X__ | C6000 series |
Example
| DSP | Macro |
| C28xx | _TMS320C28X |
| C54x | _TMS320C5XX |
| C55x | __TMS320C55X__ |
| C6200 | _TMS320C6200 |
| C6400 | _TMS320C6400 |
| C6400+ | _TMS320C6400_PLUS |
| C6600 | _TMS320C6600 |
| C6700 | _TMS320C6700 |
| C6700+ | _TMS320C6700_PLUS |
| C6740 | _TMS320C6740 |
TMS470
| Type | Macro |
| Identification | __TMS470__ |