10-04-2007
i386 - This is the first real 32 bit mode 8086 family CPU, 486, Pentiums etc all run 386 code.
IA32 and IA64 are Itanium modes
AMD64, AMD was the first to extend the 386 to 64 bits rather where as Intel was going down the Itanium route
x86_64 is Intel's take on 64 bit version of the 386, playing catchup to AMD
bin refers to binary as in compiled code
src refers to source, as in source code
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LEARN ABOUT OPENDARWIN
cpu_capabilities
cpu_capabilities(3alleg4) Allegro manual cpu_capabilities(3alleg4)
NAME
cpu_capabilities - Contains the capability flags of the CPU. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
extern int cpu_capabilities;
DESCRIPTION
Contains CPU flags indicating what features are available on the current CPU. The flags can be any combination of these:
CPU_ID - Indicates that the "cpuid" instruction is
available. If this is set, then all Allegro CPU
variables are 100% reliable, otherwise there
may be some mistakes.
CPU_FPU - An FPU is available.
CPU_IA64 - Running on Intel 64 bit CPU
CPU_AMD64 - Running on AMD 64 bit CPU
CPU_MMX - Intel MMX instruction set is available.
CPU_MMXPLUS - Intel MMX+ instruction set is available.
CPU_SSE - Intel SSE instruction set is available.
CPU_SSE2 - Intel SSE2 instruction set is available.
CPU_SSE3 - Intel SSE3 instruction set is available.
CPU_3DNOW - AMD 3DNow! instruction set is available.
CPU_ENH3DNOW - AMD Enhanced 3DNow! instruction set is
available.
CPU_CMOV - Pentium Pro "cmov" instruction is available.
You can check for multiple features by OR-ing the flags together. For example, to check if the CPU has an FPU and MMX instructions avail-
able, you'd do:
if ((cpu_capabilities & (CPU_FPU | CPU_MMX)) ==
(CPU_FPU | CPU_MMX)) {
printf("CPU has both an FPU and MMX instructions!
");
}
You can read this variable after you have called check_cpu() (which is automatically called by allegro_init()).
SEE ALSO
check_cpu(3alleg4), cpu_vendor(3alleg4), cpu_family(3alleg4), cpu_model(3alleg4), cpu_capabilities(3alleg4), allegro_init(3alleg4)
Allegro version 4.4.2 cpu_capabilities(3alleg4)