Maybe to state it clearly and I need your opinion if the whole story is possible. I wrote some demos for Amiga in 90' but the QL... I'm just in love in this machine. My plan is to write a simple scroller (as I did for Amiga) but using just pure QL (68008) with 640k memory. Possible, without flickeri...

@Derek, many thanks, that's really great explanation! I will try it tomorrow and give you my feedback.

Derek_Stewart wrote:Hi,
I never released them, as it was a fun exercise for me to do.

Wow, It would be great to see this code e.g. on GitHub? Please

Another method, which is horribly inefficient, is, synchronize your screen updates with the 50Hz interrupt (polling interrupt) Tobias Wow, many thanks for your ideas. The 50Hz interrupt (7) was also my idea but this interrupt I just want to use to play "music" in background. So switching ...

Derek_Stewart wrote:Hi,
Just edit the boot file.

I'm lamer in this topic. Could you give me just a short advice what a "boot file" is .

I just got completely new "Sinclair QL Tetroid disk interface with Compact flash card" and setup my QL. However it always starts with the Pointer Toolkit. How can I switch it off and go back to my plain vanilla command line?

I have payed on 26/6/ a full membership (email only) fee to treasurer@quanta.org.uk but afterwards I haven't got any information, confirmation, welcome mail or similar?
Is it the way it works or something went wrong?

It's also an option to turn the video display off while the screen is being redrawn, so the redraw happens during the dark spell, if that is the effect you're trying to achieve? Yes, exactly. I know it from Amiga where you can query if the redrawing of the screen is ready, allowing making some chan...

Is there any possibility to get an info that QL is ready with redrawing of the screen so I can update the screen memory (using some cycles) without the effect of flickering?

Hi Derek, Many thanks for your support. I got the same problem with your code however I did something else. I created an example_link file like this (based on an example from qmac): filetype 1 data 4k input example With qmac I created a normal example_rel file (setting data DATA default device befor...