Re: Hardware emulation of 6509 using 6502?

From: smf <smf_at_null.net>
Date: Thu, 22 Feb 2018 15:46:13 +0000
Message-ID: <9d6ced2c-6ada-ddf4-57ee-2c6f1af636d2@null.net>
On 22/02/2018 13:47, Michał Pleban wrote:
>  From a quick look at the schematic, it appears that this signal is used
> to determine when it is a good time to issue RDY signal to the CPU.

You could fake SYNC by setting it every few clock cycles and then when 
the refresh circuit tries to stop the CPU you can instead turn off the 
clock. The registers will likely hold their contents long enough.



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Received on 2018-02-22 16:00:09

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