The Sinclair QL Forum

Interrupt (level 2) on the QL is slow as it calls the QDOS handlers. I think it also slows down the CPU while it's pending since it asserts the VPA signal.
If you can avoid both, and on faster CPU, it could run much faster.

Thanks to everybody that voted and commented!

Looks like there is strong interest in new games... that's useful to know.

am interested in the arcade game, thanks. Is there any more info you could announce?


It's a relatively unknown game, generation and complexity are comparable to pacman.
First version will probably need a QL or emulator as it takes over the machine and uses the QL pixel aspect ratio. Could be ...

- a SuperGoldCard setting in the Speed menu


It would not be very precise anyways (only "QL Speed" will be)... maybe in the future. Do you have a SGC to run benchmarks? At the moment, I only have GC.



- To have different predefined default directories for QEmulator configuration files (for ...

Which are the new features that will be present in Q-Emulator 4?


Largest one from my point of view is the accurate QL timing. It took me a long time to study and replicate the interaction of CPU, ZX8301/video and IPC. It's been a good excuse to buy more QL hardware and electronics :)
Other ...

I've put a check by other - it would be good to be able to put ROM's in other locations too - where these are supported by Minverva, and also some easy way to mimic basic hardware in/out for debugging using Qemulator - that may merit further explanation - if a 'fake' I/O device at a set address ...

Will Q-emulator 4 support Apple M-series processors natively?
V3 under Rosetta 2 is working fine for me but I guess an ARM version would future proof it for when Apple ditch R2 like they eventually did for R1.


Hi Sparrowhawk, and thank you for your help in the past with beta testing ...

Concentrate on the quick wins. Only if you really finish something you gain motivation to continue with something else.


Good suggestion! Probably the only 'quick' project in the list is MDVRAW. Maybe also Q-emuLator 4 since it is already so close to completion... unless I decide to add more ...

More info on some of the projects:

MDVRAW format:
https://theqlforum.com/viewtopic.php?p=61563&hilit=qlmdvraw#p61563

ZX83 ROM prototype:
https://theqlforum.com/viewtopic.php?t=4419&hilit=zx83+eprom&start=70

Pico ROM:
https://theqlforum.com/viewtopic.php?p=63980#p63980

Video Card:
https://youtu ...

I have started many QL projects over the years, but don't currently have enough time to make progress on all them.

Which projects do you think I should continue? Thanks for the help and any additional suggestions.