Search found 186 matches

by ThomH
Thu Dec 26, 2019 11:47 pm
Forum: Tape and floppy disk converters
Topic: Kryoflux: How to setup?
Replies: 14
Views: 2900

Re: Kryoflux: How to setup?

Easy, just drag and drop two at the same time. It can't fit them both into the first drive! Cool! I just recently discovered the drag-n-drop feature (macOS/Linux) :). I'm trying to finish the triple-boot (actually quadruple-boot with Telestrat) which in past was detected by CLK as Apple][ because o...
by ThomH
Thu Dec 26, 2019 10:32 pm
Forum: Demos
Topic: Real Time 3D example
Replies: 20
Views: 1427

Re: Real Time 3D example

On polygon filling, I've never come up with a completely compelling solution for dealing correctly with clipping against z=1, which can induce additional polygon edges that are not parallel to an edge of the screen and which do not connect on-screen vertices. On a 16-bit machine you have time to jus...
by ThomH
Thu Dec 26, 2019 10:15 pm
Forum: Tape and floppy disk converters
Topic: Kryoflux: How to setup?
Replies: 14
Views: 2900

Re: Kryoflux: How to setup?

... file-format in that world called 'Pasti' (extension STX) that I think could be a good fit for for an Oric. Hi, @ThomH! I'm happy to "see" you around and thanks for the interesting info. I follow your updates in CLK regularly, compiling after every commit with hope to find a way to load DSK file...
by ThomH
Thu Dec 26, 2019 7:52 pm
Forum: Demos
Topic: Real Time 3D example
Replies: 20
Views: 1427

Re: Real Time 3D example

Cool, I've written homebrew 3d on an Atari Lynx, which has a separate maths unit including multiply with accumulate that makes life very easy, and on a Z80-based machine. So naturally I stuck my nose into your code. It looks like your fast project ejects the classic linear algebra solution of dividi...
by ThomH
Thu Dec 26, 2019 6:50 pm
Forum: Tape and floppy disk converters
Topic: Kryoflux: How to setup?
Replies: 14
Views: 2900

Re: Kryoflux: How to setup?

Belated follow-up on this: I'm currently working on the Atari ST in Clock Signal and there's a file-format in that world called 'Pasti' (extension STX) that I think could be a good fit for for an Oric. Of course I'm applying my own spin to this, but it appears to be simply: all data that was interes...
by ThomH
Wed Oct 30, 2019 3:35 am
Forum: Operating systems
Topic: Does anything use the Microdisc interrupt?
Replies: 2
Views: 691

Re: Does anything use the Microdisc interrupt?

That's the Jasmin, which is the only one the emulator doesn't currently cover — it's got only the Microdisc and Pravetz disk interfaces implemented. Though, honestly, I should probably throw the Jasmin in as clearly FT-DOS is Jasmin-specific and therefore there is currently Oric software the emulato...
by ThomH
Tue Oct 29, 2019 4:03 am
Forum: Operating systems
Topic: Does anything use the Microdisc interrupt?
Replies: 2
Views: 691

Does anything use the Microdisc interrupt?

I have the strong feeling that none of the Oric's operating systems use its hardware interrupt, since it's not all that useful — it primarily marks the end of an FDC instruction, but since the Oric doesn't use DMA for disk transfers there's never really much ambiguity. I guess it might be useful for...
by ThomH
Tue Apr 02, 2019 2:33 pm
Forum: General Discussion
Topic: How good (or bad) my English knowledge is? - NonRelated question
Replies: 11
Views: 3031

Re: How good (or bad) my English knowledge is? - NonRelated question

My feelings on 'once in a blue moon', as an ex-pat: I've never heard an American say it in conversation; they definitely know what a blue moon is though, in the literal sense of the rare event, and have even named a successful beer after it; back in the UK it's prominently used at the start of a wel...
by ThomH
Tue Apr 02, 2019 2:02 pm
Forum: Tape and floppy disk converters
Topic: Kryoflux: How to setup?
Replies: 14
Views: 2900

Re: Kryoflux: How to setup?

IPF support in Clock Signal would be a really useful thing, I think. I've so far deferred for two reasons: the library provided duplicates quite a lot of what Clock Signal already does, making its wholesale inclusion undesirable; and I tend to run from anything which has been overtly politicised. Th...
by ThomH
Wed Nov 07, 2018 10:42 pm
Forum: Emulators
Topic: Oricutron feature request: external debugger support.
Replies: 5
Views: 2925

Re: Oricutron feature request: external debugger support.

Your interpretation of this may differ from mine, but it looks like GDB doesn't obtain architecture information from the server, it has to be rebuilt for every architecture you want to debug. E.g. per https://docs.faircom.com/doc/knowledgebase/62424.htm "The gdb must be specially compiled to be awar...
by ThomH
Sun Aug 12, 2018 4:21 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 106
Views: 54796

Re: Clock Signal — an Oric emulator for macOS and Linux

I am still having the same problem with NIB that has obstructed everybody that ever tried to come up with a disk to write them out to a real disk: the file format is just too much of a fiction. From an original disk it (i) removes all the sync bits; then (ii) adds a whole bunch of padding so that ea...
by ThomH
Sun Aug 05, 2018 11:23 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 106
Views: 54796

Re: Clock Signal — an Oric emulator for macOS and Linux

It barely warrants the thread bump, but just to say: after pursuing that "it loads slowly" Apple II comment as referenced above I have come across the wisdom that asking a Disk II to disable the drive motor does so with a one-second delay. For now I've taken that to be a controller feature rather a ...
by ThomH
Fri Jul 06, 2018 3:19 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 106
Views: 54796

Re: Clock Signal — an Oric emulator for macOS and Linux

Oh, yes, the Mac version doesn't display an error if it can't find its ROMs because there should be no way for it not to find its ROMs. But they're not in the repository. Unofficially, since they're in the releases, just grab the ROMImages folder from inside the application bundle and use it to repl...
by ThomH
Fri Jul 06, 2018 3:50 am
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 106
Views: 54796

Re: Clock Signal — an Oric emulator for macOS and Linux

For the record, I decided that I probably wouldn't have time to do much more before my upcoming trip, so I just pushed a new release . Therefore if you use the prebuilt Mac port, the various changes discussed above are now available to you; primarily the emulation of Pravetz 8DOS writing is much imp...
by ThomH
Thu Jul 05, 2018 7:48 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 106
Views: 54796

Re: Clock Signal — an Oric emulator for macOS and Linux

Just for information and to be precise, Apple II's clock is 1.0205 Mhz (not 1.0250) (according Jim Sather's "Understanding the Apple II", THE reference.) My understanding is that there's 14.31818Mhz master crystal, which divides by four to give the standard NTSC 3.579545Mhz. For the CPU it's divide...