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Article #314Re: Fractal FAQ (assembly in Xfractint?)
From: Ken Shirriff
Date: Wed, 20 Jan 1993 23:19
Date: Wed, 20 Jan 1993 23:19
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In article <AV.93Jan20131744@kielo.uta.fi> av@uta.fi (Arto V. Viitanen) writes: >Does X/Fractint use assebler code on Intel based Unix machines ? If not, has >anybody tried to do this ? Xfractint is entirely C code. I suppose you could try using assembler code. However, I would recommend doing timings before putting much effort into it. On my machine, a float multiply takes about twice as long as an int multiply. So, after you factor in the shifting and so forth required to multiply two ints with an implicit scale factor, you don't really win. (Of course, if you don't have a floating point unit, then ints will win.) Also, the main cause for slowness in Xfractint is drawing pixels through X, and the assembly code won't help there. If anyone tries using assembler code for xfractint, please let me know how it turns out. Ken Shirriff shirriff@sprite.Berkeley.EDU
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!usenet.ins.cwru.edu!agate!sprite.berkeley.edu!shirriff From: shirriff@sprite.berkeley.edu (Ken Shirriff) Newsgroups: sci.fractals Subject: Re: Fractal FAQ (assembly in Xfractint?) Date: 20 Jan 1993 23:19:46 GMT Organization: University of California, Berkeley Lines: 17 Message-ID: <1jkmmi$rah@agate.berkeley.edu> References: <fractal-faq_727397981@sprite.Berkeley.EDU> <AV.93Jan20131744@kielo.uta.fi> NNTP-Posting-Host: hijack.berkeley.edu