Re: Re: Re: Re: Re: Disk rom dump (D9090)

From: hwarin_at_neuf.fr Date: Fri, 7 Feb 2014 01:41:14 +0100 (CET) Message-ID: <30817781.412859.1391733674146.JavaMail.www@wsfrf1112>

Of course .. Sent a mail to zimmer as the ML won't accept attachments.

Regards - Hervé

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Message du : 06/02/2014 20:57
De : "Spiro Trikaliotis " <ml-cbmhackers@trikaliotis.net>
A : cbm-hackers@musoftware.de
Copie à : 
Sujet : Re: Re: Re: Re: Disk rom dump (D9090)

 Hell Hervé,

* On Wed, Feb 05, 2014 at 09:14:46PM +0100 hwarin@neuf.fr wrote:
> I did a quick compare and found interesting things (or may be did the FDC
> copy program that I've changed slightly worked badly)
> 
> 1) Both "DOS" ROMs show no difference with zimmer's Rev C ones
> 2) My 2716 chip is clearly labelled Rev B ... but :
> - No change on the upper 1k part with Rev B
> - No change on the lower 256b part with Rev B
> - From 023D to 03FB : Filled with AA (NOPs ?)
> - From 0100 to 023C and from 03FC to 03FF, code is different.
> 
> This might be a Rev C FDC ROM with a Rev B sticker ?

Do you think about uploading your ROM somewhere so others can have a
look at it, too?

Regards,
Spiro.

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

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