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Architectures
Alexey Nikolaev edited this page Feb 18, 2020
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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 |
| 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 = VersionDefined 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 |
| 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 |
| 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 = VersionR = Revision |
See also OpenPA.net.
| 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 architecturesDefined by Visual Studio, Digital Mars, and Watcom C/C++ (see note below) | |
| Identification | _M_IX86 |
Only defined for 32-bits architecturesDefined 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.
| 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++ |
| 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 |
| 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 |
| 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__ |
GekkoDefined by CodeWarrior |
| Version | __PPCBROADWAY__ |
BroadwayDefined by CodeWarrior |
| Version | _XENON |
Xenon |
| Identification | __ppc |
Defined by Diab |
| 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 |
| 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 |
| 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/370Defined by XL C/C++ |
| Identification | __s390__ |
Identifies System/390Defined by GNU C |
| Identification | __s390x__ |
Identifies z/ArchitectureDefined by GNU C |
| Identification | __zarch__ |
Identifies z/ArchitectureDefined by clang |
| Identification | __SYSC_ZARCH__ |
Identifies z/ArchitectureDefined by Systems/C |
| Type | Macro | Description |
|---|---|---|
| Identification |
_TMS320C2XX__TMS320C2000__
|
C2000 series |
| Identification |
_TMS320C5X__TMS320C55X__
|
C5000 series |
| Identification |
_TMS320C6X__TMS320C6X__
|
C6000 series |
| DSP | Macro |
|---|---|
| C28xx | _TMS320C28X |
| C54x | _TMS320C5XX |
| C55x | __TMS320C55X__ |
| C6200 | _TMS320C6200 |
| C6400 | _TMS320C6400 |
| C6400+ | _TMS320C6400_PLUS |
| C6600 | _TMS320C6600 |
| C6700 | _TMS320C6700 |
| C6700+ | _TMS320C6700_PLUS |
| C6740 | _TMS320C6740 |
| Type | Macro |
|---|---|
| Identification | __TMS470__ |