Re: Hardware emulation of 6509 using 6502?

From: Mia Magnusson <mia_at_plea.se>
Date: Sat, 24 Feb 2018 00:11:01 +0100
Message-ID: <20180224001101.000030ad@plea.se>
Den Fri, 23 Feb 2018 22:52:06 +0000 skrev smf <smf@null.net>:
> On 23/02/2018 20:08, MichaƂ Pleban wrote:
> > Sure, but the board for 6510 would have to be much more
> > complicated, and I am still not sure if tapping some signals from
> > the motherboard wouldn't be necessary. I am not sure if this would
> > be worth the effort.
> 
> Probably not. How about 
> http://westerndesigncenter.com/wdc/w65c816s-chip.cfm ?

I assume that everyone have had 65816 in their minds while discussing a
6509 replacement.

An interesting question though is how to handle that both 6509 and
65816 provide more than 16 adress lines. Some kind of mux to select
6509- or 65816-mode of addressing more than 64k?

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Received on 2018-02-24 00:00:02

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