cpu_family(3alleg4)              Allegro manual              cpu_family(3alleg4)

       cpu_family - Contains the CPU type. Allegro game programming library.

       #include <allegro.h>

       extern int cpu_family;

       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()).

       check_cpu(3alleg4), cpu_vendor(3alleg4), cpu_model(3alleg4),
       cpu_capabilities(3alleg4), allegro_init(3alleg4)

Allegro                           version 4.4.3              cpu_family(3alleg4)