Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
1132 Discussions

FMA now an extension of AVX?

gabest
Beginner
‎08-27-2008 11:58 PM
789 Views
The madd/sub instructionswere one of the new killer features I was waiting for, but now they are gone from the java intrinsics guide(still present in april's release)andrefered to as an extension to AVX in thepdf. Was this feature cut from the first iteration of avx cpus or will it just have a separate cpuid flag?
0 Kudos

Link Copied

1 Reply
Quoc-Thai_L_Intel
Employee
‎09-08-2008 09:32 AM
789 Views

Hi,

Here is a response from our engineering team: FMA are not part of the Sandy Bridge processor. They will be present in a future processor and will have a separate feature flag.

-Thai

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.