Re: Hardware emulation of 6509 using 6502?

From: smf <smf_at_null.net>
Date: Tue, 6 Mar 2018 21:35:00 +0000
Message-ID: <503dad25-c936-d815-baa5-a7374144ae29@null.net>
On 06/03/2018 19:51, Mia Magnusson wrote:

> I really don't understand why this sram is there at all instead of just
> map a part of the 64k dram in bank 0 as a 1k window in bank 15.

Probably because the execute bank is normally 15 and it would be a pain 
to write to the screen and colour.

The design is horrendous, fortunately they sorted it out when they did 
the c64.


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Received on 2018-03-06 23:00:03

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