Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: An Opteron note

Author: Russell Reagan

Date: 20:25:20 11/26/03

Go up one level in this thread


On November 26, 2003 at 21:18:05, Robert Hyatt wrote:

>And
>then there are 8 more registers you can use with the same old opcodes
>and addressing modes.

>I have PopCnt(), FirstOne() and LastOne() working
>fine.

Did the extra registers allow for any new tricks/improvements when writing these
functions? Or was the number of registers not a limiting factor for these
functions on x86?

Have you considered making use of the 16 128-bit xmm registers on the Opteron?
Or the 8 64-bit mmx registers?



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.