What else are we missing?

[bobbimanners]

Question for @jgharston ... What other features are we missing from the Beeb that could be supported? We should use this ticket to make a list.

[jgharston]

Startup MODE.

On Acorn systems, on Reset the initial screen mode is read from OSBYTE 255.
On power-on, OSBYTE 255 is set to the hardware default (either keyboard links or configuration).
On soft reset:
BBC/Elk: OSBYTE 255 is unchanged
Master: OSBYTE 255 is set to the previous MODE.

So, which do we want:
Soft Reset selects the MODE previously set with *FX255 (a la Beeb)
Soft Reset selects the MODE previously set with MODE (a la Master)

[bobbimanners]

What VDUs are we missing that could be implemented?

[jgharston]

I wrote the KEYREAD cursor code so that it could be turned on/off/changed shape, so that VDU 23,1,n and VDU 23,0,10/11 could be written. I'll review the code and write up what VDU 23 needs to do.
Reviewing the rest of VDU 23,0 I can't see anything that is sensible or possible to implement, and on other platforms the only subcall carried over is the cursor control with register 10/11.