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AG_CPUINFO(3) Library Functions Manual AG_CPUINFO(3) NAME AG_CPUInfo -- agar architecture information structure SYNOPSIS #include <agar/core.h> DESCRIPTION The agar AG_CPUInfo interface provides some information about the current architecture and architecture extensions. INTERFACE void AG_GetCPUInfo(AG_CPUInfo *info) The AG_GetCPUInfo() function returns CPU information into an existing info structure. STRUCTURE DATA For the AG_CPUInfo structure: const char *arch A string describing the architecture (e.g., "alpha", "i386", etc). char vendorID[13] A vendor ID string (architecture-specific). Uint32 ext A list of architecture extensions that have some rele- vance to user applications (see "ARCHITECTURE EXTENSIONS" below). ARCHITECTURE EXTENSIONS The ext field can contain the following flags: AG_EXT_CPUID The i386 CPUID instruction is supported. AG_EXT_MMX MMX instructions are available. AG_EXT_MMX_EXT AMD extensions to MMX are available. AG_EXT_3DNOW 3dNow! is supported. AG_EXT_3DNOW_EXT Extended 3dNow! is supported. AG_EXT_ALTIVEC AltiVec instructions are supported. AG_EXT_SSE Streaming SIMD extensions are supported. AG_EXT_SSE2 SSE2 extensions are supported. AG_EXT_SSE3 SSE3 (PNI) extensions are supported. AG_EXT_LONG_MODE Long mode is available. AG_EXT_RDTSCP The RDTSCP instruction exists. AG_EXT_FXSR Fast FXSAVE/FXSTOR is available. AG_EXT_PAGE_NX The per-page no-execute bit (W^X) is supported. AG_EXT_SSE5A SSE5A extensions are available. AG_EXT_3DNOW_PREFETCH The PREFETCH and PREFETCHW instructions for 3dNow! are available. AG_EXT_SSE_MISALIGNED Misaligned SSE mode is supported. AG_EXT_SSE4A SSE4A extensions are available. AG_EXT_ONCHIP_FPU The floating point unit is on-chip. AG_EXT_TSC The Time Stamp Counter is available. AG_EXT_CMOV The CMOV (Conditional Move) instruction exists. AG_EXT_CLFLUSH The CLFLUSH (Cache Line Flush) instruction exists. AG_EXT_HTT Hyper-Threading technology is supported. AG_EXT_MON MONITOR and MWAIT instructions exist. AG_EXT_VMX Virtual Machine Extensions are available. AG_EXT_SSSE3 SSSE3 extensions are available. AG_EXT_SSE41 SSE4.1 extensions are available. AG_EXT_SSE42 SSE4.2 extensions are available. EXAMPLES The following code prints architecture information: AG_CPUInfo cpu; AG_GetCPUInfo(&cpu); AG_Verbose("Architecture: %s\n", cpu.arch); AG_Verbose("Vendor ID: %s\n", cpu.vendorID); AG_Verbose("AltiVec: %s\n", (cpu.ext & AG_EXT_ALTIVEC) ? "Yes" : "No"); AG_Verbose("SSE: %s\n", (cpu.ext & AG_EXT_SSE) ? "Yes" : "No"); SEE ALSO AG_Intro(3) HISTORY The AG_CPUInfo interface first appeared in Agar 1.3.4. Agar 1.7 December 21, 2022 AG_CPUINFO(3)
NAME | SYNOPSIS | DESCRIPTION | INTERFACE | STRUCTURE DATA | ARCHITECTURE EXTENSIONS | EXAMPLES | SEE ALSO | HISTORY
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