Re: Hardware emulation of 6509 using 6502?

From: Mia Magnusson <mia_at_plea.se>
Date: Tue, 17 Jul 2018 02:24:04 +0200
Message-ID: <20180717022404.000029ef@plea.se>
Den Tue, 17 Jul 2018 01:10:43 +0100 skrev smf <smf@null.net>:
> On 17/07/2018 00:15, David Wood wrote:
> > That has the massive caveat of the cpu having to be taken
> > completely off the bus during the emulation and would probably
> > still require a clock cycle.  Perhaps not if done quickly enough.
> 
> Interrupts while you are executing the injected instruction stream
> would be fun.

If you are going to separate the bus and inject code, holding of
interrupts until you are done with the code injection is the simplest
part...

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Received on 2018-07-17 03:00:19

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