option to emulate a Master 128?

[scruss]

On Stardot, user Cantabrigian asks:

Does anyone know how to configure it so I can run my code on an emulated Master 128?

I know it can be done in JSBeeb, but the model appears to be hardcoded in Owlet.

[john-m-richardson]

Thanks for posting this here, and for your answer. Sounds like this isn't the simple tweak I'd imagine/hoped.

Things have gone very quiet here about Owlet, which is a surprise. I asked a question about changing keyboard mappings a couple of weeks ago, but no responses.

[mattgodbolt]

Thanks for this! Pinging @8bitkick too :) this ought to be possible!

[john-m-richardson]

It would be great if this were possible!
(I'm Cantabrigian, btw, the OP - and don't mind who knows it!)

Back in the 1980's I coded on a 10" b&w TV... on which MODES 0 and 3 were illegible. Now I can read them, I use nothing else, and suddenly realise how quickly a program uses all available RAM compared to MODE 7.

Shadow memory, and hence a Master 128, becomes very desirable!

(Enjoying the Twos Complement podcast, btw.)