NAME    [Toc]    [Back]

       cpu  -  Global Variable: Provides a unique logical processor-type
 family identifier

SYNOPSIS    [Toc]    [Back]

       extern int cpu;

DESCRIPTION    [Toc]    [Back]

       The cpu global variable provides a unique  logical  family
       identifier  of  the  processor type of the running system.
       The logical system name can represent a  single  processor
       or a family of processor types.  For example, the constant
       DEC_3000_500 represents the   DEC  3000  Model  500  Alpha
       Workstation.  The  defined  processor  names appear in the
       following file: /usr/sys/include/arch/alpha/hal/cpuconf.h.

       You  use  the cpu global variable to conditionally execute
       processor-specific code. For example, the  following  code
       fragment  calls a system-specific initialization interface
       for the DEC 3000 Model 500 Alpha Workstation:
        .
        .
        .  if (cpu == DEC_3000_500) {
               init_3000_500(); }
        .
        .
        .





                                                          cpu(9v)