Date   : Mon, 13 Aug 2007 16:36:57 +0100
From   : jon@... (Jon Ripley)
Subject: Watford Electronics Adder Eprom Programmer

Chris Priest wrote:
> Upload to http://www.lasermatrix.co.uk/ADDERR.zip

You need to provide a FTP host address and a user name and password for
an account with write access to the FTP space for that site.  But since
the file is there anyways...

It looks like that ROM image is corrupt.  The first 2k of the "ROM"
image is blank which accounts for why it doesn't do anything useful when
you load it into sideways RAM I doubt that the missing data is easily
recoverable.  I'd look for an alternate copy of the ROM.

Regards,
Jon
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