Re: Introduction

From: Michał Pleban <>
Date: Thu, 13 Jun 2013 18:28:05 +0200
Message-ID: <>

Baltissen, GJPAA (Ruud) wrote:

>> You could possibly sacrifice the User Port to drive these pins.
> Great idea! I completely forgot that Boisy hasn't to be 6510 compatible. 

Actually I just realized it's not a good idea. User Port is visible in
the I/O area. Once you switch it out, you won't be able to access it to
bring it back :-(

Perhaps a better idea would be to XOR one address line so that the $Dxxx
I/O area is moved to $Fxxx, and use the $5 memory configuration (I/O
visible, otherwise RAM).


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Received on 2013-06-13 18:01:11

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