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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 performance; lettered entries are either mutually exclusive or cannot be ordered.
This feature is obsolete and may be removed in a future version of Solaris. The lists below do not reflect all the extensions that have been made by modern processors. See getisax(2) for a better way to handle instruction set extensions.
Where appropriate, correspondence with a given value of the -xarch option of Sun's C 4.0 compiler is indicated. Other compilers might 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) can be emulated by the kernel on certain systems.
Same as sparc. This corresponds to code produced with the -xarch=v7 option of Sun's C 4.0 compiler.
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.
Like sparcv8-fsmuld, except that FSMULD must also be executed in hardware. This corresponds to code produced with the -xarch=v8 option of Sun's C 4.0 compiler.
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.
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.
Like sparcv8plus, with the addition of the Fujitsu SPARC64 floating multiply-add and multiply-subtract instructions.
Indicates the SPARC V9 instruction set, as defined in The SPARC Architecture Manual, Version 9, Prentice-Hall, 1994.
Like sparcv9, with the addition of the UltraSPARC I Visualization Instructions.
Like sparcv9, with the addition of the UltraSPARC III Visualization Instructions.
Like sparcv9, with the addition of the Fujitsu SPARC64 floating multiply-add and multiply-subtract instructions.
The Intel 80386 instruction set, as described in The i386 Microprocessor Programmer's Reference Manual.
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.)
The Intel Pentium instruction set, as described in The Pentium Processor User's Manual. (This is effectively i486, plus the CPU_ID instruction, and any features that the CPU_ID instruction indicates are present.)
Like pentium, with the MMX instructions guaranteed present.
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.)
Like pentium_pro, with the MMX instructions guaranteed present.
The AMD Opteron instruction set, as described in the AMD64 Architecture Programmer's Manual.
isalist(1), getisax(2), sysinfo(2)