NAME

AG_CPUInfo —

agar architecture information structure

SYNOPSIS

#include <agar/core.h>

The agar AG_CPUInfo interface provides some information about the current architecture and architecture extensions.

void
AG_GetCPUInfo(AG_CPUInfo *info);

The AG_GetCPUInfo() function returns CPU information into an existing info structure.

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 relevance to user applications (see ARCHITECTURE EXTENSIONS below).

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.

The AG_CPUInfo interface first appeared in Agar 1.3.