From: Spiro Trikaliotis (ml-cbmhackers_at_trikaliotis.net)
Date: 2006-12-18 08:07:26
Hello,
* On Sun, Dec 17, 2006 at 10:38:18PM +0200 Marko Mäkelä wrote:
> Thank you for your very detailed analysis. When I archived the ROMs
> a decade ago, I wasn't an expert of the serial bus protocol. You
> obviously are, given your involvement with the OpenCBM project.
Well, for OpenCBM, I just used the sources Michael Klein wrote. Thus, I
could wrote cbm4win without even understanding the IEC protocol. ;)
> I think that this could be checked fairly easily by installing the
> -03 ROM to a 1541 (for example, using Nicolas Welte's flash ROM
> card) and seeing if it works in a multi-device setup.
A good point. I totally overlooked the fact that the -03 ROM works in a
single-device setup for Andrew.
In this case, the change I marked "getting a data byte after LISTEN I
($E9DC-$E9DE)" seems to be the most reasonable for this change, IMHO. If
one drive is taking more time, the other drive would prematurely end its
timeout. With the change, this is not true anymore.
Regards,
Spiro.
--
Spiro R. Trikaliotis
http://www.trikaliotis.net/
http://opencbm.sf.net/
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