Search found 182 matches

by stephen_usher
Sat Nov 09, 2019 7:18 pm
Forum: General QL Chat
Topic: QL with OSSC
Replies: 5
Views: 522

Re: QL with OSSC

Yes, the OSSC is the best scan converter less than £300 and works a treat with the QL.

I think I posted about it here last year.
by stephen_usher
Mon Nov 04, 2019 8:58 pm
Forum: Software & Programming
Topic: P.I. Cole - noir detective game
Replies: 36
Views: 2250

Re: P.I. Cole - noir detective game

Great! Wasn't sure it would help, have never used the W volume myself - Just browsed through the docs some time ago. Tobias The only downside is that compression is achieved by saving only red or green. So when you load the image you have to recolor it to get white pixels - and you get red or green...
by stephen_usher
Sat Nov 02, 2019 5:06 pm
Forum: General QL Chat
Topic: Playtape Felt for Microdrive Cartridges?
Replies: 1
Views: 491

Re: Playtape Felt for Microdrive Cartridges?

The new (high density) felt needs to be 4mm long, 2mm wide and no more than 1.5mm high otherwise it'll put too much pressure on the tape.
by stephen_usher
Sat Nov 02, 2019 3:20 pm
Forum: General QL Chat
Topic: Sinclair QL First Boot in USA 2019 - my YouTube video
Replies: 8
Views: 1166

Re: Sinclair QL First Boot in USA 2019 - my YouTube video

Today I booted my Sinclair QL for the 1st time. The SuperGoldCard is a fantastic piece of hardware, but it suffers from not being available, and not solving the video issue. Recently I had a private discussion again about an UltraGoldCard for the QL case, mainly to provide an easy upgrade for retur...
by stephen_usher
Wed Oct 30, 2019 7:54 pm
Forum: General QL Chat
Topic: Bad Apple demos
Replies: 105
Views: 8326

Re: Bad Apple demos

QLvsJAGUAR wrote:Hi folks, summer is over, Urs is back. [emoji4]

Had some spare minutes after work, here‘s my little contribution:
https://youtu.be/LMbZZe4UWA0

QL forever!


Gesendet von iPhone mit Tapatalk


What's the equivalent QL speed of that emulator? I'm guessing not stock 7.5MHz :D
by stephen_usher
Wed Oct 30, 2019 2:25 pm
Forum: General QL Chat
Topic: QL Net server to back-up Spectrum files?
Replies: 22
Views: 2501

Re: QL Net server to back-up Spectrum files?

vanpeebles wrote:Post of the month right there! :lol: 8-)

What is the machine under the monitor?


It's an Atari TT.
by stephen_usher
Wed Oct 30, 2019 9:05 am
Forum: General QL Chat
Topic: Bad Apple demos
Replies: 105
Views: 8326

Re: Bad Apple demos

Now off to bed. Enjoy, Marcel That's absolutely amazing! What sort of algorithm are you using for that? By the way those speckles in the images are probably from diffusion dithering on too small an image, I got that once and had to swap to a different dithering algorithm for the small version of th...
by stephen_usher
Tue Oct 29, 2019 8:45 pm
Forum: General QL Chat
Topic: Bad Apple demos
Replies: 105
Views: 8326

Re: Bad Apple demos

OK, I've given up on the development of this, but I've packaged up everything so if anyone else would like to continue playing with this stuff they can. You can download the gzipped tar file here: http://www.lingula.org.uk/~steve/share/QL-m4video-codec.tar.gz I've written some very basic documentati...
by stephen_usher
Mon Oct 28, 2019 9:32 pm
Forum: General QL Chat
Topic: Bad Apple demos
Replies: 105
Views: 8326

Re: Bad Apple demos

Here's a larger (and better rendered) version of test_m4v: http://www.lingula.org.uk/~steve/share/test_m4v I could run the first version (named "testm4v.img") with QemuLator, but I can't open this new one. I tried also to rename it as "test_m4v.img" but I get a "not a QDOS ...
by stephen_usher
Mon Oct 28, 2019 8:01 pm
Forum: General QL Chat
Topic: Bad Apple demos
Replies: 105
Views: 8326

Re: Bad Apple demos

OK, I think I can probably say that a "Bad Apple" demo is impossible on a stock QL with memory and disk expansion, the memory sub-system is just too slow. Even after halving the resolution (reducing the number of pixels by 3/4trs), doing a little more optimisation in the decoder and simpli...