Re: 1571/1581 (RE: Commodore 16)

From: Anders Carlsson (anders.carlsson_at_mds.mdh.se)
Date: 2003-09-23 19:32:59

On Tue, 23 Sep 2003, Christian Johansson wrote:

> I also noticed that when sending UI- to a 1571 drive in 1571 mode,

I think it has been discussed elsewhere (in comp.sys.cbm?) whether
the UI- mode/command is properly implemented on 1571 or not. But
even if it is missing, a VIC-20 to my knowledge doesn't automatically
force the unit into that mode and it should not be the reason why
it doesn't work.

(disclaimer: I've never owned a 1571 or 1581, so I couldn't test myself
 with my VIC, but I have a vague memory of at least one success story
 involving the 1581 and VIC-20 ?)

> This program is particularly useful with 64HDD since it gives a speed
> increase of about 28 % when loading a program with 64HDD

Hm. The manual says 25%, and I have only been able to measure 15-20%
on VIC-20 tests using 1541-II. Does the 64HDD solution speed up more
than expected?

-- 
Anders Carlsson

"Please not to close to the hair, finger, clothes to run about the
 inside's vehicle, in order to prevent quilt involvement." -- Bit Racer



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