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Subject: Re: assembly--not really that fast

Author: David Rasmussen

Date: 16:27:19 01/13/02

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On January 13, 2002 at 18:51:02, Ed Schröder wrote:

>On January 13, 2002 at 16:29:21, Tom Kerrigan wrote:
>
>>On January 13, 2002 at 07:05:02, Ed Schröder wrote:
>>
>>>I have to disagree, I have a MSVC6 version of Rebel and it runs 30% slower than
>>>the ASM version.
>>
>>What do you attribute this difference to? Is it simply not possible to write C
>>that produces the same assembly as your hand-written code? Or do you take
>>certain liberties in the C code (perhaps in the same of readability?) that's
>>slowing things down?
>>
>>-Tom
>
>Just have a look at the ASM code MSVC6 produces, it often is bad stuff. By
>re-writing (optimizing) this "bad ASM stuff" I got my +30%.
>
>One ambiguous remark, don't believe everthing commercials are telling you :)
>
>Ed

Or even worse, gcc. Most people say that their chess program runs 30% faster
when compiled with gcc. Mine too.

/David

• Re: assembly--not really that fast Rafael Andrist 23:21:18 01/13/02
  • Re: assembly--not really that fast David Rasmussen 04:29:27 01/14/02
    • Re: assembly--not really that fast Christophe Theron 08:06:45 01/14/02
      • Re: assembly--not really that fast David Rasmussen 15:12:29 01/14/02

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