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Forums > C64 Coding > Unused power of c64 config
2008-04-27 09:15
Mr.Ice

Registered: Nov 2007
Posts: 13
Unused power of c64 config

Hi,

I always wonder why nobody ever released something that will require four 1541 drives to run (5x 6502 running in parallel). Serial bus is of course slow but if You have large computations to do time to transfer data shouldn't be a problem. You can also use parallel cable instead of serial and then calculations/transfer ratio is very good:)
 
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2008-04-28 11:23
Copyfault

Registered: Dec 2001
Posts: 478
Hmm, I wonder if there wasn't some Mandelbrotset-Creation-Utility released by some German Mag (64er, Magic Disk?) in the late 80ies that used at least 2 floppies to do calculations for a mandelbrot set...

Unfortunatly I do not remember the name. Wouldn't help that much, cause it will not be here on CSDB as it was no real scene release (Grp: correct me if I got the rules wrong ;))

CF
2008-04-28 12:17
TNT
Account closed

Registered: Oct 2004
Posts: 189
C64 + 2x1581 is almost as likely combination as C64 + 4x1541 and gives you double drive memory with half the transfer hassle. But why use only couple of drives when you can easily* connect 31? That would give you ~63 MHz and 312 KB.

(* You may have to get rid of some pull-up resistors to allow driving IEC lines down, but if you are ready to use parallel cable then small modifications like this should be ok. Even better would be using burst mod to use 60-70% of transfer time for something else.)
2008-04-28 15:40
Mace

Registered: May 2002
Posts: 1799
Quote:
C64 + 2x1581 is almost as likely combination as C64 + 4x1541
Could gladly test that too... ;-)
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