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Software Optimization Guide for AMD Family 10h Processors
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Gerd Isenberg



Joined: 08 Mar 2006
Posts: 1802
Location: Hattingen, Germany
PostPost subject: Software Optimization Guide for AMD Family 10h Processors    Posted: Fri May 25, 2007 10:18 am Reply to topic Reply with quote
Software Optimization Guide for AMD Family 10h Processors
40546 Rev. 3.02 May 2007

http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/40546.pdf

some highlights: 128-bit alus for SSE*
POPCNT and LZCNT are single Directpath instructions with latency of two cycles!
Code:

BSF    reg, reg VectorPath         4
BSR    reg, reg VectorPath         4
LZCNT  reg, reg DirectPath Single  2 note 6
POPCNT reg, reg DirectPath Single  2 note 6

note 6) This operation is restricted to scheduling in pipe 2.
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Subject Author Date/Time
Software Optimization Guide for AMD Family 10h Processors Gerd Isenberg Fri May 25, 2007 10:18 am
      Re: Software Optimization Guide for AMD Family 10h Processor Nid Hogge Fri May 25, 2007 7:00 pm
            Re: Software Optimization Guide for AMD Family 10h Processor Gerd Isenberg Fri May 25, 2007 8:43 pm
                  Re: Software Optimization Guide for AMD Family 10h Processor Nid Hogge Fri May 25, 2007 11:10 pm
                        Re: Software Optimization Guide for AMD Family 10h Processor Gerd Isenberg Sat May 26, 2007 7:39 am
      Re: Software Optimization Guide for AMD Family 10h Processor Gerd Isenberg Sat May 26, 2007 9:54 am
      Re: Software Optimization Guide for AMD Family 10h Processor Vincent Diepeveen Sat May 26, 2007 7:03 pm
            Re: Software Optimization Guide for AMD Family 10h Processor Gerd Isenberg Sat May 26, 2007 7:55 pm
                  Re: Software Optimization Guide for AMD Family 10h Processor Vincent Diepeveen Sun May 27, 2007 3:02 pm
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