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Subject: Re: Opteron Instruction Set

Author: Robert Hyatt

Date: 19:41:19 02/02/04

On February 02, 2004 at 20:06:29, David Rasmussen wrote:

>Does the Opteron have firstBit, lastBit and popCount instructions? Or at least
>something that makes calculating them easier than on x86-32?
>
>/David

Has the same BSF/BSR instructions, but no popcnt that I have found.  Note
that BSF/BSR work on 64 bit values if you want.  I have inline asm to do
all three for gcc if you are interested.

Re: Opteron Instruction Set Jay Urbanski 22:03:29 02/02/04
- Re: Opteron Instruction Set Gerd Isenberg 00:13:29 02/03/04
  - Re: Opteron Instruction Set Vincent Diepeveen 08:45:20 02/03/04
    - Re: Opteron Instruction Set Gerd Isenberg 12:02:42 02/03/04
      - Re: Opteron Instruction Set Vincent Diepeveen 12:59:43 02/03/04
        
        Re: Opteron Instruction Set Gerd Isenberg 13:20:49 02/03/04
    - Re: Opteron Instruction Set Robert Hyatt 09:15:23 02/03/04
      - Re: Opteron Instruction Set Vincent Diepeveen 12:49:27 02/03/04
        
        Re: Opteron Instruction Set Robert Hyatt 13:18:46 02/03/04
        
        Re: Opteron Instruction Set Daniel Clausen 00:58:46 02/04/04
        
        Re: Opteron Instruction Set Robert Hyatt 06:55:20 02/04/04
        
        Re: Opteron Instruction Set Robert Hyatt 15:30:07 02/03/04
        
        Re: Opteron Instruction Set Robert Hyatt 12:50:28 02/04/04
Re: Opteron Instruction Set Omid David Tabibi 20:14:12 02/02/04
- Re: Opteron Instruction Set Dieter Buerssner 13:19:07 02/03/04
- Re: Opteron Instruction Set Robert Hyatt 21:30:31 02/02/04

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