Re: Test suite for 6509 processor

From: smf <smf_at_null.net>
Date: Tue, 27 Feb 2018 12:11:00 +0000
Message-ID: <7e9a4e55-d060-7633-9abd-70a9d2a3d4b8@null.net>
On 27/02/2018 10:31, Michał Pleban wrote:
> But on a CBM-II which has very little software, and when the differences
> in behaviour can only arise in a very specific interaction between 6509
> and 8088 code, and nothing practical can be gained when exploiting it, I
> don't think that's an issue.

You're forgetting the p500, where there are similar inteactions with 
location $0/$1 between the 6509 and vicII as the c64 has with the 6510 
and vicII.

Plus if you make something work better than it does on a real 6509, then 
new software will likely exploit it (either on purpose or by accident) 
and you'll end up with compatibility issues.



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Received on 2018-02-27 13:00:03

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