BIOS SPEED FOR VIDEO WRITES

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#1071

From: Homer Smith
Date: Thu, 20 Aug 1992 13:18

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     On my 386/33 with Trident 8900 chip the program takes 1:10
minutes.
 
     On my 486/33 with identical video board the program takes 11:46
minutes.
 
     Could someone please give me a hint why the 486 is 11 times
slower than the 386. 
 
     Using another program that did a simple INC AX,1 repeatedly,
the 486 was 2.8 times faster than the 386.
 
     Homer

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Message-ID: <1992Aug20.131829.5606@tc.cornell.edu>

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Newsgroups: comp.os.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!rpi!batcomputer!theory.TC.Cornell.EDU!homer
From: homer@theory.TC.Cornell.EDU (Homer Smith)
Subject: BIOS SPEED FOR VIDEO WRITES
Message-ID: <1992Aug20.131829.5606@tc.cornell.edu>
Sender: news@tc.cornell.edu
Nntp-Posting-Host: theory.tc.cornell.edu
Organization: Cornell Theory Center
     From a beginner...
     I wrote a short program in assembler to write to every pixel on
Date: Thu, 20 Aug 1992 13:18:29 GMT
Lines: 13