isalist(5)

NAME

     isalist - the  native  instruction  sets  known  to  Solaris
     software

DESCRIPTION

     The possible instruction set names returned  by   isalist(1)
     and the  SI_ISALIST command of  sysinfo(2) are listed here.

     The list is ordered within an instruction set family in  the
     sense  that  later  names  are generally faster then earlier
     names; note that this is in the reverse order than listed by
     isalist(1) and  sysinfo(2). In the following list of values,
     numbered entries  generally  represent   increasing  perfor-
     mance;  lettered  entries  are  either mutually exclusive or
     cannot be ordered.

  SPARC Platforms
     Where appropriate, correspondence with a given value of  the
     -xarch  option  of  Sun's C 4.0 compiler is indicated. Other
     compilers may have similar options.

     1a. sparc
           Indicates the SPARC V8 instruction set, as defined  in
           The  SPARC  Architecture  Manual, Version 8, Prentice-
           Hall, Inc., 1992. Some instructions (such  as  integer
           multiply  and  divide,  FSMULD, and all floating point
           operations on quad operands) may be  emulated  by  the
           kernel on certain systems.

     1b. sparcv7
           Same as sparc. This corresponds to code produced  with
           the -xarch=v7 option of Sun's C 4.0 compiler.

     2. sparcv8-fsmuld
           Like sparc, except that integer  multiply  and  divide
           must be executed in hardware. This corresponds to code
           produced with the -xarch=v8a option  of  Sun's  C  4.0
           compiler.

     3. sparcv8
           Like sparcv8-fsmuld, except that FSMULD must  also  be
           executed  in  hardware.  This corresponds to code pro-
           duced with the -xarch=v8 option of Sun's  C  4.0  com-
           piler.

     4. sparcv8plus
           Indicates the SPARC  V8  instruction  set  plus  those
           instructions  in  the  SPARC  V9  instruction  set, as
           defined in  The SPARC Architecture Manual, Version  9,
           Prentice-Hall,  1994,  that  can  be used according to
           The V8+ Technical Specification. This  corresponds  to
           code produced with the -xarch=v8plus option of Sun's C
           4.0 compiler.

     5a. sparcv8plus+vis
           Like  sparcv8plus,  with   the   addition   of   those
           UltraSPARC  I  Visualization  Instructions that can be
           used according to  The  V8+  Technical  Specification.
           This   corresponds   to   code   produced   with   the
           -xarch=v8plusa option of Sun's C 4.0 compiler.

     5b. sparcv8plus+fmuladd
           Like sparcv8plus, with the addition of the Hal SPARC64
           floating  multiply-add  and multiply-subtract instruc-
           tions.

     6. sparcv9
           Indicates the SPARC V9 instruction set, as defined  in
           The  SPARC  Architecture  Manual, Version 9, Prentice-
           Hall, 1994.

     7a. sparcv9+vis
           Like sparcv9, with the addition of  the  UltraSPARC  I
           Visualization Instructions.

     7b. sparcv9+fmuladd
           Like sparcv9, with the addition  of  the  Hal  SPARC64
           floating  multiply-add  and multiply-subtract instruc-
           tions.

  x86 Platforms
     1. i386
           The Intel 80386 instruction set, as described in   The
           i386 Microprocessor Programmer's Reference Manual.

     2. i486
           The Intel 80486 instruction set, as described in   The
           i486  Microprocessor  Programmer's  Reference  Manual.
           (This is effectively i386, plus  the  CMPXCHG,  BSWAP,
           and XADD instructions.)

     3. pentium
           The Intel Pentium instruction  set,  as  described  in
           The  Pentium  Processor User's Manual. (This is effec-
           tively i486, plus  the  CPU_ID  instruction,  and  any
           features  that  the  CPU_ID  instruction indicates are
           present.)

     4. pentium+mmx
           Like pentium, with  the  MMX  instructions  guaranteed
           present.

     5. pentium_pro
           The Intel PentiumPro instruction set, as described  in
           The  PentiumPro  Family  Developer's  Manual. (This is
           effectively pentium, with the CMOVcc, FCMOVcc,  FCOMI,
           and RDPMC instructions guaranteed present.)

     6. pentium_pro+mmx
           Like pentium_pro, with the MMX instructions guaranteed
           present.

SEE ALSO

     isalist(1), sysinfo(2)