Intel® Developer Zone:
Intel ISA Extensions

Announcements
 

Support for various extensions to the Intel Instruction Set Architecture, including but not limited to:

  • Intel® AVX, which provides the infrastructure and building blocks for delivering the performance required by the growing needs of applications such as financial analysis, media content creation, encoding and encryption, natural resource industry, and High Performance Computing (HPC)
  • Intel® MPX, which provides the infrastructure for software to trap buffer overflow errors before they can be exploited by malware
  • Intel® SHA Extensions, which provide improved performance for applications using the commonly employed Secure Hash Algorithm to obtain greater data integrity, message authentication, digital signatures and data de-duplication
  • Intel® SGX forum support has been moved to a new location
This is a peer forum for developers using Intel® technology. Response times vary depending on the complexity of your issue.
Private messages can only be initiated by Intel employees and members of the Intel® Black Belt Developer program.
Topic / Topic startersort descending Post date Replies Last Post
Normal topic Multi-Byte NOP locks up system.
by DF
Tue, 05/22/2012 - 10:36 2
by DF
Tue, 05/22/2012 - 12:15
Normal topic Need help, SIMD guru
by Timocafe
Mon, 10/25/2010 - 09:37 4
by Tim P.
Mon, 10/25/2010 - 09:37
Normal topic Need help: Why my avx code is slower than SSE code?
by Chen S.
Sun, 06/08/2014 - 04:38 8
by emmanuel.attia
Mon, 06/16/2014 - 09:45
Normal topic Need to vzeroupper if 128-bit operations are used?
by andysem
Fri, 02/15/2013 - 00:09 10
by Sergey Kostrov
Thu, 02/21/2013 - 05:08
Normal topic Need You Help For My Intel P C
by jackdalson
Wed, 04/21/2010 - 06:21 1
by Thomas Willhalm...
Wed, 04/21/2010 - 06:21
Normal topic New extension needed for Maps and Sets
by Mirza H.
Thu, 07/23/2015 - 01:10 4
by jimdempseyatthecove
Thu, 07/30/2015 - 11:41
Normal topic New instruction proposal: memcmp-like int compare
by Daniel F.
Sat, 08/19/2017 - 20:52 13
by Daniel F.
Tue, 08/22/2017 - 11:12
Normal topic New SIMDLEA Instruction?
by w0wtiger
Sun, 01/11/2009 - 00:52 2
by Max Locktyukhin...
Sun, 01/11/2009 - 00:52
Normal topic New version of Intel(R) SDE posted
by Mark Charney (Intel)
Mon, 01/12/2009 - 06:14 1
by aaron-tersteeg ...
Mon, 01/12/2009 - 06:15
Normal topic New Xeons on Intel Ark
by emmanuel.attia
Tue, 09/09/2014 - 02:28 9
by Tim P.
Fri, 09/12/2014 - 07:39
Normal topic Newbie: SSE with integers
by spertulo
Tue, 11/16/2010 - 01:32 5
by 0xr
Tue, 11/16/2010 - 01:32
Normal topic No explanation of comparison codes for integer vector compare instructions
by Michael R.
Wed, 07/29/2015 - 14:42 3
by jimdempseyatthecove
Wed, 08/05/2015 - 04:19
Normal topic No speedup AVX over SSE
by nik0las
Sun, 09/02/2012 - 22:45 6
by Tim P.
Fri, 09/14/2012 - 13:38
Normal topic Non-AVX opcodes
by aorl
Fri, 07/30/2010 - 09:12 3
by knujohn4
Sat, 08/07/2010 - 09:42
Normal topic Obtain time stamp disable (TSD) flag in user-mode
by freeze2046
Tue, 03/29/2011 - 05:54 1
by Chris Hooper
Tue, 03/29/2011 - 05:54
Normal topic Ooops - wrong instruction description in volume 2 of the SDM
by McCalpin, John
Thu, 07/02/2015 - 11:39 1
by Mark Charney (Intel)
Thu, 07/02/2015 - 12:20
Normal topic Opcode semantics
by matt.j
Thu, 08/13/2009 - 18:24 3
by c0d1f1ed
Mon, 11/02/2009 - 00:38
Normal topic operand size override prefix(66H)
by logicman112
Mon, 06/07/2010 - 20:38 0
by logicman112
Mon, 06/07/2010 - 20:38
Normal topic optimal ordering of instructions
by tthsqe
Mon, 08/10/2009 - 20:16 0
by tthsqe
Mon, 08/10/2009 - 20:16
Hot topic Optimization and Execution speed testing of gamma stirling approximation
by iliyapolak
Sun, 06/17/2012 - 23:24 30
by iliyapolak
Wed, 06/27/2012 - 22:08
Normal topic Optimization caused loss of accurracy
by iliyapolak
Thu, 12/13/2012 - 13:31 1
by iliyapolak
Sun, 12/16/2012 - 22:47
Hot topic Optimization of sine function's taylor expansion (Page: 1, 2, 3Last Page)
by iliyapolak
Thu, 05/24/2012 - 05:29 342
by iliyapolak
Tue, 12/11/2012 - 23:50
Hot topic Optimize C code by SSE2
by chang-li
Thu, 01/17/2013 - 18:01 19
by Sergey Kostrov
Thu, 01/24/2013 - 17:12
Normal topic Optimizing SSE2 code and beyond...
by srimks
Fri, 09/04/2009 - 04:58 1
by srimks
Fri, 09/04/2009 - 19:51
Normal topic OT what's the number of registers for the Intel Xeon X7542?
by bravegag
Tue, 10/16/2012 - 02:35 2
by Sergey Kostrov
Sat, 11/03/2012 - 15:18
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For more complete information about compiler optimizations, see our Optimization Notice.