Re: 6809 on C64 Development

From: Jim Brain <brain_at_jbrain.com>
Date: Fri, 25 May 2018 09:38:50 -0500
Message-ID: <b4a00865-d66b-f13a-6ec9-8a6fdc920ee7@jbrain.com>
On 5/25/2018 1:00 AM, Baltissen, GJPAA (Ruud) wrote:
>
> Hallo Jim,
>
> I even have found time to look at the SCH :( But what kind of help are 
> you looking for? Even if it is obvious, name it. I'll look what I can do.
>
As of May 23, I have confirmed that I can:

  * start/stop the 63c09 under C64 control
  * place code into the RAM from the C64
  * run that code from the '09
  * have the '09 write data to the RAM
  * read that same data from the 64

It'd be nice to get some test program working to further validate the 
operation.  As well, I'm wondering how the developer would want to 
interact with the RAM and the additional features of the '09 (IRQ, FIRQ, 
NMI, HALT, etc.)

There was an idea to include an SD slot or something onboard, so I will 
look at that as well.

Jim
Received on 2018-05-25 17:02:42

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