RE: Informations about JiffyDOS

From: Bo Zimmerman (bo_at_zimmers.net)
Date: 2001-03-15 21:36:44

Hmmm... doesn't the VIC-20 use a different IO chip (the 6522) than the C64
(6526)?  How would this effect even the attempt to code a jiffydos kernal
for the VIC?

	- Bo

-----Original Message-----
From: owner-cbm-hackers@dot.tml.hut.fi
[mailto:owner-cbm-hackers@dot.tml.hut.fi]On Behalf Of Carlsson, Anders
Sent: Thursday, March 15, 2001 3:47 AM
To: cbm-hackers@dot.tml.hut.fi
Subject: Re: Informations about JiffyDOS


Marko Mäkelä wrote:

> JiffyDOS doesn't make use of the fast serial bus (burst mode) on
> the C64, because it doesn't require any hardware modifications.

Ah, ok. I thought hardware modifications and the burst mode were
involved. How about Dolphin DOS, Professional DOS and all the other?
Does any of these use burst mode, and possibly can't be used at the
same speed with the VIC?

I already knew the deal with VIC-II, UI- and the other issues, which
in practise makes the VIC 25% faster with normal transfer mode.

/Anders Carlsson
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