Search found 120 matches

by retroric
Mon Oct 12, 2020 6:19 pm
Forum: Operating systems, utilities and other serious software
Topic: Hello from UK! and presenting dflat system
Replies: 30
Views: 938

Re: Hello from UK!

Ah,

Just saw the answers from Kenetth and DBUg... Very good points !!!
by retroric
Mon Oct 12, 2020 6:17 pm
Forum: Operating systems, utilities and other serious software
Topic: Hello from UK! and presenting dflat system
Replies: 30
Views: 938

Re: Hello from UK!

Nice test setup ! What is the chip you use on the bottom left above the ribbon cable (supposedly for address decoding) ? On the subject of your "BIOS" and dflat implementation hardly fitting in 16 kB... I suppose you could consider using *two* 16 kB EPROMs with additional address decoding with maybe...
by retroric
Mon Oct 12, 2020 10:56 am
Forum: Operating systems, utilities and other serious software
Topic: Hello from UK! and presenting dflat system
Replies: 30
Views: 938

Re: Hello from UK!

Hi 6502Nerd, On second thougths, while it is of course nice to design a custom ROM for dflat, it would also be nice to allow the editor+tokenizer+runtime lib (ROM at present) to be loaded into RAM (like Forth implementations for the Oric) even though it would drastically reduce available space to pr...
by retroric
Sun Oct 11, 2020 5:19 pm
Forum: Technical questions
Topic: Atmos, WDC65C02 and WDC65C22N and other
Replies: 6
Views: 624

Re: Atmos, WDC65C02 and WDC65C22N and other

Last interesting (?) thing: if I change the crystal oscillator for a 20 Mhz one, the ATMOS does not boot with the original 6502 CPU, supposed to support 2 Mhz (though its speed is only 1.66 Mhz with a 20 Mhz oscillator). However, with a WDC W65C02S8P-14, it boots and works flawlessly. Next time, I ...
by retroric
Sun Oct 11, 2020 4:42 pm
Forum: Operating systems, utilities and other serious software
Topic: Hello from UK! and presenting dflat system
Replies: 30
Views: 938

Re: Hello from UK!

Hi there, and welcome ! Thanks for telling us about your personal story with the Oric 1 and your experiments about building 6502 SBC, that's some endeavour! I'm really interested about your new dflat script-like language, love the name (although you're not the first one to do the pun - I tried to lo...
by retroric
Sat Oct 10, 2020 6:42 pm
Forum: General Discussion
Topic: Hypothetical - Huge Text Adventure in 48K
Replies: 6
Views: 704

Re: Hypothetical - Huge Text Adventure in 48K

Hi, Another approach would be dictionary-based; instead of trying to find an approach to optimize (or compress) encoding of individual letters, you would use or or more bytes as indices into a lookup table of words. One approach I thought about would be inspired by the encoding of code points in Uni...
by retroric
Fri Oct 09, 2020 5:03 pm
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

-> The HxC Floppy Emulator firmware can be installed quite easily on the "Cumana Reborn" drives : You just need an usb stick ! (Hundred of flashfloppy Gotek and clones was flashed with the HxC firmware this way until now.) Please note that the "Cumana Reborn" is just a cloned Gotek designed from my...
by retroric
Fri Oct 09, 2020 12:31 am
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

Hi @DBug, @Symoon and @iss Many thanks to the three of you for your replies, indeed it looks like there are two differnet HxC devices, and Symoon may be right about only the USB model supporting DSK. Now, I suppose I can just find out the HxC designer's address and send him an email to get answers t...
by retroric
Wed Oct 07, 2020 10:38 pm
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

Is there a Cumana Reborn manual/read me/FAQ somewhere to see what more I do not know that is possible on it? Never looked for it actually as it from the box did what I needed it to do.... Not to my knowledge but again, as it is based on FlashFloppy you should go to the FlashFloppy Wiki documentatio...
by retroric
Wed Oct 07, 2020 10:24 pm
Forum: General Discussion
Topic: New source code repository on OSDN.net
Replies: 18
Views: 1340

Re: New source code repository on OSDN.net

Ah, thanks for these explanations ! Actually, digging a little deeper, I found out that by replacing "svn" by "tree/head" in the URL it worked: E.g: http://svn.defence-force.org/tree/head/users/chema/Blakes7/Sources/ works and redirects to the correct target URL. However, I will follow your directio...
by retroric
Wed Oct 07, 2020 3:31 am
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

Here is the info about the dsk formats: https://wiki.defence-force.org/doku.php?id=oric:hardware:dsk_disk_format Thank you very much for the link Chema, it is much clearer now !! However I doubt adding Oric DSK support is as straightforward as you think, otherwise Keir would have long done it I thi...
by retroric
Wed Oct 07, 2020 2:33 am
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

EDIT: good news about the possibility to update the FlashFloppy driver in the Cumana Reborn device: Piotr just gave me te procedure which is quite simple: copy update file to pendrive insert pendrive into powered off Cumana Reborn maintain encoder button pushed and power the device on then release ...
by retroric
Tue Oct 06, 2020 7:05 pm
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

Thanks Chema for the info, so really, if we were to convert to HFE, we would have to: first decode the HFE file to translate it as a stream of raw data bytes then just use the 'old2mfm' utility to convert it to the new DSK format ? But what I fail to understand is you are speaking of file encoding, ...
by retroric
Tue Oct 06, 2020 6:59 pm
Forum: Games
Topic: Upcoming brand-new Oric text adventure
Replies: 13
Views: 850

Re: Upcoming brand-new Oric text adventure

Well xahmol, I was a bit biassed myself in pretending French is so simple, of course there are many exceptions, but for starters you don't have to bother with accentuation as in English, and second there are (I think) much fewer 'exceptions' to the basic rule that all basic blocks are always pronoun...
by retroric
Tue Oct 06, 2020 3:11 pm
Forum: Operating systems, utilities and other serious software
Topic: Cumana Reborn DSK support
Replies: 43
Views: 1443

Re: Cumana Reborn DSK support

To be honest I know as little as you about the DSK format. But I was under the impression (from the discussion in the GitHub issue) there was an "old" format, and a "new" format. So I'm not sure if this is related to having a specific format for Jasmin and another one for Microdisc. I'm sure @DBug o...