Search found 35 matches

by grafvonb
Tue Feb 04, 2020 7:10 pm
Forum: Software & Programming
Topic: Changing color mode using Display Color Register $18063 does not work as expected
Replies: 3
Views: 208

Changing color mode using Display Color Register $18063 does not work as expected

When I run this code I expect the QL to change from 4 to 8 color mode. However it does not work. If I run "mode 4" before and run the binary the screen background turns to magenta and fonts are corrupt (with blue lines or similar). move.b #%00001000,$18063 ;turn on 8 color mode The other w...
by grafvonb
Tue Feb 04, 2020 6:58 pm
Forum: Hardware
Topic: Transfer data between Windows and QL using CF Card with QL Tetroid disk interface
Replies: 23
Views: 1272

Re: Transfer data between Windows and QL using CF Card with QL Tetroid disk interface

So I have tried the way proposed by @Chr$ using vDrive and QemuLator and it works, however not so straightforward e.g. I was not able to write/use the MDV image directly on the SD card, I had to copy to HDD first and then mount to QemuLator. @POLKa, the procedures are great and save lot of time and ...
by grafvonb
Wed Jan 29, 2020 9:10 pm
Forum: Hardware
Topic: Transfer data between Windows and QL using CF Card with QL Tetroid disk interface
Replies: 23
Views: 1272

Re: Transfer data between Windows and QL using CF Card with QL Tetroid disk interface

Wow, tons of ideas, many thanks, I will try to find a solution.
And I thought it would be easy :o...
by grafvonb
Wed Jan 29, 2020 8:22 pm
Forum: Hardware
Topic: Transfer data between Windows and QL using CF Card with QL Tetroid disk interface
Replies: 23
Views: 1272

Transfer data between Windows and QL using CF Card with QL Tetroid disk interface

I suppose this question has been asked already but I was not able to find it in the web or here. So I got this very cool "Sinclair QL Tetroid disk interface with Compact flash card" and want to use it to copy downloaded software e.g. zips to the formatted partitions I created on the card u...
by grafvonb
Wed Jan 29, 2020 5:18 pm
Forum: Hardware
Topic: vDrive QL format error
Replies: 2
Views: 236

Re: vDrive QL format error

Hi, Charles, many thanks for your support!
by grafvonb
Tue Jan 28, 2020 7:43 pm
Forum: Hardware
Topic: vDrive QL format error
Replies: 2
Views: 236

vDrive QL format error

I got my vDrive and try to configure it to use it. Sadly I cannot format any of the created images. I get always format error at the end. I have tried following: - change SD cards (different sizes and types) - change ROMs (Minerva, JS etc.) - even change QLs (I tried three different ones, English, G...
by grafvonb
Wed Jul 03, 2019 9:29 pm
Forum: Software & Programming
Topic: Get info when QL is ready with screen redrawing?
Replies: 9
Views: 1176

Re: Get info when QL is ready with screen redrawing?

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...
by grafvonb
Wed Jul 03, 2019 9:24 pm
Forum: Hardware
Topic: Switch off Pointer Toolkit
Replies: 11
Views: 2379

Re: Switch off Pointer Toolkit

@Derek, many thanks, that's really great explanation! I will try it tomorrow and give you my feedback.
by grafvonb
Wed Jul 03, 2019 9:14 pm
Forum: Software & Programming
Topic: Get info when QL is ready with screen redrawing?
Replies: 9
Views: 1176

Re: Get info when QL is ready with screen redrawing?

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 :)
by grafvonb
Wed Jul 03, 2019 9:10 pm
Forum: Software & Programming
Topic: Get info when QL is ready with screen redrawing?
Replies: 9
Views: 1176

Re: Get info when QL is ready with screen redrawing?

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 ...