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Hi Guys.
I am building a sound card for my UK101 that is compatible with Premier Publications Basic X, does anyone know the default sound address for basic X. it’s been 30 odd years and I have forgotten the address that Premier Publication’s used for their sound/VIA card, this is needed for the Basic X sound commands to work properly.
Peter.

Well I did manage to answer my own question, but if anyone else is interested the address Basic X is using for the sound commands is EF90 & EF91 (61328 & 61329).

Very useful info. This will be helpful if anyone is thinking of building a compatible card. Thanks!