Search found 96 matches

by christian
Thu Jan 12, 2023 5:28 pm
Forum: Technical questions
Topic: Oric and CP/M
Replies: 13
Views: 3378

Re: Oric and CP/M

Maybe with Dann McCreary: 8080 Simulation: https://www.pagetable.com/?p=824
It is intended to simulate an 8080 on the Kim-1, I did a port for the Oric some time ago
by christian
Thu Apr 14, 2022 12:57 pm
Forum: Hardware hacks and extensions
Topic: Orix/Twilighte board updates
Replies: 15
Views: 4735

Re: Orix/Twilighte board updates

There is currently no emulation of an FDC on the board.

Regarding the overlay memory, you can switch to one of the 64 memory banks of the card (32 x ram and 32 x rom) as easily as with a Jasmin/Microdisc/Telestrat
by christian
Fri Apr 08, 2022 9:38 pm
Forum: Hardware hacks and extensions
Topic: Orix/Twilighte board updates
Replies: 15
Views: 4735

Re: Orix/Twilighte board updates

I understand but this is true for any program developed specifically for hardware. If I write a program that uses a Jasmin drive, it will work fine on an Oric with a Jasmin, on an Atmos with a Jasmin but not on a Telestrat or an Oric/Atmos with a Microdisc without changes, then Microdsic or Twilight...
by christian
Fri Apr 08, 2022 4:13 pm
Forum: Hardware hacks and extensions
Topic: Orix/Twilighte board updates
Replies: 15
Views: 4735

Re: Orix/Twilighte board updates

There is no FDC. With FTDOS you can read a sector with the !RS statement. I can emulate the FDC commands with software but you have to call them with JSR xxx instead of loading some values to an hardware interface and waiting for an IRQ. If you want low level acces to the FDC you need some extrenal ...
by christian
Fri Apr 08, 2022 1:17 pm
Forum: Hardware hacks and extensions
Topic: Orix/Twilighte board updates
Replies: 15
Views: 4735

Re: Orix/Twilighte board updates

@jbperin With dsk-util (Orix utility) you can display the content of a Ftdos or Sedoric dsk file like with the !CAT or DIR statements, you can also extract all or parts of the content. Regarding FTDOS, as shown by Jede, you can boot it with Basic 1.1 rom. it is a rewrite of FTDOS-3.2 but without wri...
by christian
Sun Apr 03, 2022 10:34 am
Forum: Hardware hacks and extensions
Topic: Orix/Twilighte board updates
Replies: 15
Views: 4735

Re: Orix/Twilighte board updates

@Dbug
Yes with the setfont command.

Usage: setfont <fontname>
<fontname>: font file name without the .chs extension

Font files are in /usr/share/fonts so you can add your own character set.
by christian
Fri Nov 26, 2021 6:55 pm
Forum: Painting tricks
Topic: ULA Paint
Replies: 11
Views: 16951

Re: ULA Paint

If you have a Twilighte card, ULAPaint can be used as is.
Files are read and written to/from the SD card or USB key.
by christian
Sat May 22, 2021 1:34 pm
Forum: BASIC programming
Topic: Looking for a BASIC trick for RESTORE N
Replies: 6
Views: 8016

Re: Looking for a BASIC trick for RESTORE N

You can try:

Code: Select all

100 GOSUB 1000: READ A
....
900 DATA 900,901
1000 DOKE #B0,DEEK(#AC) :RETURN
1001DATA 1000,1001
by christian
Mon May 17, 2021 1:47 pm
Forum: Technical questions
Topic: Oric HFE file
Replies: 62
Views: 24253

Re: Oric HFE file

I just submitted a PR for oricutron to correct the problem.

@AtmoeX: thanks
by christian
Sun May 16, 2021 5:31 pm
Forum: Technical questions
Topic: Oric HFE file
Replies: 62
Views: 24253

Re: Oric HFE file

Jeff wrote: Sun May 16, 2021 4:52 pm And don't forget the write splice. The extras bit(s) + the write splice mixed with the previous data may result to any possible value.
Exact.

So, it's time to add some improvements to Oricutron.

Thanks
by christian
Sun May 16, 2021 3:44 pm
Forum: Technical questions
Topic: Oric HFE file
Replies: 62
Views: 24253

Re: Oric HFE file

You're right about Oricutron. What you are saying is that the FDC automatically adds this extra byte after the CRC, so if we format a floppy disk there will also be this extra byte at the end of the index field? I don't remember reading this in the FDC specs but maybe I missed it. The other thing I ...
by christian
Sun May 16, 2021 1:14 pm
Forum: Technical questions
Topic: Oric HFE file
Replies: 62
Views: 24253

Re: Oric HFE file

I checked SEDO40.DSK and hxctest_hfe.dsk from hxctest.zip. The size of GAP and the order of the sectors are not the same i don't know why but this is not the issue with Oricutron I found some tracks that seem weird to me. These are sectors 6 and 7 of track 7 that correspond to your test program (bit...
by christian
Fri May 15, 2020 10:50 am
Forum: Emulators
Topic: Sound hacking and Oricutron: Paste from clipboard in Atmos mode?
Replies: 17
Views: 10646

Re: Sound hacking and Oricutron: Paste from clipboard in Atmos mode?

keymap file: use 1 line per keycode to translate, with the following pattern: <SDL_host_keycode> : <SDL_oric_keycode> Here is the file I use on my french laptop (decimal values): 38 : 49 233 : 50 34 : 51 39 : 52 40 : 53 45 : 54 232 : 55 95 : 56 231 : 57 224 : 48 41 : 45 61 : 61 33 : 92 94 : 91 36 : ...
by christian
Thu Mar 19, 2020 2:12 pm
Forum: Demos
Topic: Swiss16 - the Sweet16 port for Oric by [raxiss] + demo
Replies: 3
Views: 4424

Re: Swiss16 - the Sweet16 port for Oric by [raxiss] + demo

Nice demo and port! A small note, the BRxx instructions of the original version used a relative displacement which allowed to load a sweet16 program anywhere in memory, but this version seems to use absolute addresses. Maybe a relative displacement of +/- 32767 might be enough (but this will slightl...
by christian
Sat Jan 25, 2020 4:56 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 33
Views: 24477

Re: Jasmin time

FTDOS use always IRQ to read or write data