Re: Document "C64 PLA Dissected"

From: Spiro Trikaliotis <ml-cbmhackers_at_trikaliotis.net>
Date: Thu, 27 Dec 2012 21:55:11 +0100
Message-ID: <20121227205510.GB18519@trikaliotis.net>
Hello Ingo,

* On Tue, Dec 25, 2012 at 10:12:27PM +0100 Ingo Korb wrote:
> Spiro Trikaliotis <ml-cbmhackers@trikaliotis.net> writes:
> 
> > The german "64 intern" already contained a full reverse engineering of
> > the equations, as I wrote before, even in this ML:
> 
> Interesting, can you provide more details? In my copy ("7. erweiterte
> Auflage 1988", ISBN 3-89011-000-2) there are just two pages that
> graphically illustrate various memory maps depending on the
> HIRAM/LORAM/GAME/EXROM signals. The diagrams are pretty similar to the
> ones in the Programmer's Reference Guide, so I guess they've been
> derived from that instead of a PLA dump.

I have put a scanned extract of the 3rd edition (foreword for that
edition is dated August 1983, there is no ISBN number on the book) at
http://www.trikaliotis.net/download/64intern-v3-pla.pdf.

I remember that I checked that table with the equations I found on
zimmers.net and on the previous reverse engineerings, and I found that
they were identical. I hope I did not make any mistake. ;)

In case you find any discrepancies, feel free to ask me again, as I
might have done some mistake in the process of OCR.

Regards,
Spiro.

-- 
Spiro R. Trikaliotis
http://www.trikaliotis.net/

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