man cpu_family () - Contains the CPU type. Allegro game programming library.
NAME
cpu_family - Contains the CPU type. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
extern int cpu_family;
DESCRIPTION
Contains the Intel type, where applicable. Allegro defines the following CPU family types:
CPU_FAMILY_UNKNOWN - The type of processor is unknown
CPU_FAMILY_I386 - The processor is an Intel-compatible 386
CPU_FAMILY_I486 - The processor is an Intel-compatible 486
CPU_FAMILY_I586 - The processor is a Pentium or equivalent
CPU_FAMILY_I686 - The processor is a Pentium Pro, II, III
or equivalent
CPU_FAMILY_ITANIUM - The processor is an Itanium processor
CPU_FAMILY_POWERPC - The processor is a PowerPC processor
CPU_FAMILY_EXTENDED - The processor type needs to be read
from the cpu_model
You can read this variable after you have called check_cpu() (which is automatically called by allegro_init()).