Search found 293 matches

by nollkolltroll
Sat Aug 24, 2019 9:36 pm
Forum: Development
Topic: Advances in retro video compression
Replies: 9
Views: 2227

Re: Advances in retro video compression

Working hard at the code I now have 4:3 and 16:9 modes of both the encoder and player. It seems possible to do 30fps in widescreen, so all the people in NTSC-land can have some high frame rate fun :)
by nollkolltroll
Sat Aug 24, 2019 10:52 am
Forum: Development
Topic: Advances in retro video compression
Replies: 9
Views: 2227

Re: Advances in retro video compression

An update to usage in EightyOne:
I used EightyOne 1.12, and you need the correct settings: 32k RAM, CHR$16, no hires, ZXpand+, PAL. Enabling hires (WRX) will muck up the display, even though it should not. And again: it works in slower frame rate, but the images DO look perfectly fine.
by nollkolltroll
Sat Aug 24, 2019 10:45 am
Forum: Development
Topic: Advances in retro video compression
Replies: 9
Views: 2227

Re: Advances in retro video compression

I wonder how this would compare to the Dragon's Lair encoder.... I have tested some Dragons Lair material I found online, which was rather crappy to begin with, but this encoder creates OK-ish result. I suspect Jim Bagley has done A LOT of good pre-processing, yielding a very nice result. With the ...
by nollkolltroll
Sat Aug 24, 2019 8:48 am
Forum: Development
Topic: Advances in retro video compression
Replies: 9
Views: 2227

Advances in retro video compression

I made a promise when I released the Bad Apple video player that I would enhance it. Since then I've been working hard on upgrading the encoder, both quality- and speed-wise. This morning I made a break-through regarding the quality, so I wanted to show you! Here is a first preview, a full length re...
by nollkolltroll
Sun Aug 11, 2019 7:52 pm
Forum: Development
Topic: New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)
Replies: 32
Views: 7865

Re: New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)

My small opinions: - Keep the "colour" modes greyscale to fall in line with the ZX81 spirit. A ZX81 with 2-bit greyscale would look lovely, just look at the GameBoy. Easy to use a composite video out with the new modes as well as the VGA in parallell. - It is VERY good to use the 8-16k area, so the ...
by nollkolltroll
Fri Mar 08, 2019 7:38 pm
Forum: Hardware
Topic: Tellab TL801
Replies: 12
Views: 2266

Re: Tellab TL801

The PCB is surprisingly good quality. MUCH better than Sinclair :D
by nollkolltroll
Fri Mar 08, 2019 3:48 pm
Forum: Hardware
Topic: Tellab TL801
Replies: 12
Views: 2266

Re: Tellab TL801

Naked PCBs would be very fine, and useful if someone wants to take his chance to copy it. Just make sure they are good quality scans, these will be very valuable. I guess you have seen Searle's NMI generator page? I do not think your clone includes an nmi generator at all, the NMI requires 6 more c...
by nollkolltroll
Mon Feb 25, 2019 12:39 pm
Forum: Hardware
Topic: Tellab TL801
Replies: 12
Views: 2266

Re: Tellab TL801

Neazoi: hm, you are probably right. I first imagined that it really WAS a true ZX80/81, but they probably mean it is possible to switch ROM from 4k to 8k. So silly and dishonest to claim ZX81-compatibility :) Oh well, then I really MUST build an NMI-solution for the Minstrel I already have. Might se...
by nollkolltroll
Mon Feb 25, 2019 11:08 am
Forum: Hardware
Topic: Tellab TL801
Replies: 12
Views: 2266

Re: Tellab TL801

Neazoi: I was thinking about the ZX81-compatibility mainly. I'm sure the ZX80-parts are just plain copied from the original, but the NMI-circuitry has a few different implementation variants. Also, the switching between the ZX80- and ZX81-mode can possibly differ too. For example, a ZX81 in FAST mod...
by nollkolltroll
Sun Feb 24, 2019 9:33 pm
Forum: Sinclair Misc
Topic: Retro computer fair in Västerås, Sweden
Replies: 6
Views: 2842

Re: Retro computer fair in Västerås, Sweden

Martin: I will make sure to announce it beforehand next time, so others have more time to prepare.
It sounds like you are better at Swedish than I am at Danish. I try to watch Bonderoeven untexted but it is hard :)

McKlaud: I had good discussions with enough people to warrant the preparations I did.