isainfo(1)                                                         User Commands                                                        isainfo(1)

NAME

       isainfo - describe instruction set architectures

SYNOPSIS

       isainfo [ [-v] [-b | -n | -k]  | [-x]]

DESCRIPTION

       The  isainfo utility is used to identify various attributes of the instruction set architectures supported on the currently running system.
       Among the questions it can answer are whether 64-bit applications are supported, or whether the running kernel uses 32-bit or 64-bit device
       drivers.

       When  invoked  with no options, isainfo prints the name(s) of the native instruction sets for applications supported by the current version
       of the operating system. These are a subset of the list returned by isalist(1). The subset corresponds to the basic  applications  environ-
       ments supported by the currently running system.

OPTIONS

       The following options are supported:

       -b       Prints the number of bits in the address space of the native instruction set.

       -k       Prints  the  name of the instruction set(s) used by the operating system kernel components such as device drivers and STREAMS mod-
                ules.

       -n       Prints the name of the native instruction set used by portable applications supported by the current version of the operating sys-
                tem.

       -v       When used with the- b, -k or -n options, prints more detailed information.

       -x       Prints instruction extensions to the native ABI which are supported by the platform.

EXAMPLES

       Example 1: Invoking isainfo on a 32-bit x86 Platform

       The following example invokes isainfo on a 32-bit x86 platform:

       example% isainfo -v
       32-bit i386 applications

       example% isainfo -k
       i386

       Example 2: Invoking isainfo on a System Running the 64-bit Operating System on a 64-bit SPARC Processor

       The following example invokes isainfo on a system running the 64-bit operating system on a 64-bit SPARC processor:

       example% isainfo
       sparcv9 sparc
       example% isainfo -n
       sparcv9
       example% isainfo -v
       64-bit sparcv9 applications
       32-bit sparc applications
       example% isainfo -vk
       64-bit sparcv9 kernel modules

       Example 3: Invoking isainfo -x on an AMD Opteron CPU

       The following example invokes isainfo with the -x option on an AMD Opteron CPU:

       example% isainfo -x
       i386: fpu tsc cx8 sep cmov mmx ammx a3dnow a3dnowx fxsr sse sse2 pause

EXIT STATUS

       Non-zero        Options are not specified correctly, or the command is unable to recognize attributes of the system on which it is running.
                       An error message is printed to stderr.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       isalist(1), uname(1), psrinfo(1M), sysinfo(2), attributes(5), isalist(5)

SunOS 5.10                                                          20 Jul 2004                                                         isainfo(1)