Re: Performance - DOS mode contra GUI . - Article 524 - go-pugleaf

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Re: Performance - DOS mode contra GUI .

#524

From: Marco van de Voort
Date: Fri, 18 Aug 2000 00:00

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In article <399C88FC.410AFB28@pergolesi.demon.co.uk>, Martin Harvey wrote:
>"Klaus J. Koch" wrote:
>> 
>> The other day I spent my time to convert 3 lines of pascal code into
>> more than 50 lines of highly optimized assembler code avoiding slow
>> commands as loops, jumps, calls, and pushs, and it ended up in
>> taking 5 per cent _more_ cpu time than the compiler generated code.

>3 lines of pascal should be a lot less assembler than that ... loops and
>jumps are not normally expensive provided you write them in such a way
>that the branch prediction algorithms in the processor get them right.

Yup. It only proves that he is a lousy assembler programmer, not that Pascal
is faster than asm, or that asm is not worth the trouble :-)

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From: marcov@toad.stack.nl (Marco van de Voort)
Subject: Re: Performance - DOS mode contra GUI .
Date: 2000/08/18
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