Search found 2550 matches

by Chema
Fri Nov 29, 2019 7:41 pm
Forum: Games
Topic: The QUILL
Replies: 12
Views: 968

Re: The QUILL

This is great!!!

I will test it immediately. Thanks indeed.

I know a group who is making a game using The Quill and they asked me for help with the Oric version. I am not sure that they want a disk game, but the possibility is indeed really interesting!

Thanks again!
by Chema
Fri Nov 22, 2019 10:10 am
Forum: Technical questions
Topic: New Member and New Oric Atmos Owner
Replies: 72
Views: 5336

Re: New Member and New Oric Atmos Owner

To be clear: NO it doesn't, not in the context I'm talking about. The system address bus, A0-15, is ONLY driven by the CPU. The ULA does NOT put anything onto this address bus. The ULA does multiplex the two halves of the system address bus (A0-15) into the 8 row and column addresses for the DRAM c...
by Chema
Wed Nov 20, 2019 11:55 pm
Forum: Demos
Topic: Alphaville's Big in Japan (Vortex->AY->YM) , mymplayer.s moded (vumeter)
Replies: 9
Views: 1256

Re: Alphaville's Big in Japan (Vortex->AY->YM) , mymplayer.s moded (vumeter)

Incidentally, Big in Japan is one of the minitunes in Oricium :D
by Chema
Wed Nov 20, 2019 11:09 pm
Forum: Technical questions
Topic: New Member and New Oric Atmos Owner
Replies: 72
Views: 5336

Re: New Member and New Oric Atmos Owner

Yes, you are right about a ROM stuck only reading and never writting.

About the address bus, doesn't the ULA also read the ram to get image data, thus changing the address bus lines?
by Chema
Wed Nov 20, 2019 1:09 am
Forum: Technical questions
Topic: New Member and New Oric Atmos Owner
Replies: 72
Views: 5336

Re: New Member and New Oric Atmos Owner

I meant the memory's pin 3. I think you should be seeing variations from high to low when the rom initializes things or when the ULA reads the screen memory. Also the /WRITE signal cannot be high all the time. Maybe it is worth checking those tracks for something that might be pulling them up, or cu...
by Chema
Tue Nov 19, 2019 11:15 pm
Forum: Technical questions
Topic: New Member and New Oric Atmos Owner
Replies: 72
Views: 5336

Re: New Member and New Oric Atmos Owner

Mmmm I am not sure that pin 3 signal is correct. Isn't that the WRITE signal? If it is, then it goes out directly from the ULA. Maybe the ULA is not working or there is something in that track. Also the address lines should be jumping from 0s to 1s. They seem to be held high, as that pin 3. You said...
by Chema
Tue Nov 19, 2019 1:52 pm
Forum: Technical questions
Topic: New Member and New Oric Atmos Owner
Replies: 72
Views: 5336

Re: New Member and New Oric Atmos Owner

Last repaired oric I heard about was due to a broken multiplexor (the chips over the RAM, 74LS257). It was replaced by a 74HCT157, which is compatible in this case. Maybe it is worth trying...
by Chema
Mon Nov 18, 2019 4:32 pm
Forum: General Discussion
Topic: 3" diskettes?
Replies: 13
Views: 1429

Re: 3" diskettes?

Well, the medical doctor has spoken, and he knows well. :) He is completely right. Besides microwave oven radiation is not mutagenic, which means it cannot produce mutations, and cancer (only wavelengths shorter than ultra violet are, hence the sun radiation is dangerous). We've been using them for ...
by Chema
Mon Nov 18, 2019 4:24 pm
Forum: General Discussion
Topic: Software ORICAID by MICROGRAF Help Archive
Replies: 6
Views: 835

Re: Software ORICAID by MICROGRAF Help Archive

That is excellent news. Finding copies of old missing software is great. I think Symoon is your man. He is a real expert in preserving software from tapes.

Thanks indeed!
by Chema
Sun Nov 17, 2019 9:30 pm
Forum: Emulators
Topic: Oricutron 1.0 (EDIT: Now 1.2)
Replies: 171
Views: 117269

Re: Oricutron 1.0 (EDIT: Now 1.2)

Okay, I decided to take the shortcut, blantantly stealing code from the Oricutron sources, and making a quick kludge program to convert from ORT to TAP. Done! :D A quick warning... For what I saw, Oricutron's method for saving files works well when the program calls the ROM, but cannot generate TAPs...
by Chema
Fri Nov 15, 2019 10:54 pm
Forum: Emulators
Topic: Oricutron 1.0 (EDIT: Now 1.2)
Replies: 171
Views: 117269

Re: Oricutron 1.0 (EDIT: Now 1.2)

Well, in fact what I wanted is a way either to save to tap in oricutron (not ORT) or to convert an ort to tap .. I can load the game from ort, create a snapshot and save all the memory content (including screen), but then I'll need the value of processor registers and any data which could be on the ...
by Chema
Fri Nov 15, 2019 8:17 pm
Forum: Emulators
Topic: Oricutron 1.0 (EDIT: Now 1.2)
Replies: 171
Views: 117269

Re: Oricutron 1.0 (EDIT: Now 1.2)

Hi guys! I am having trouble helping a friend with porting a game to the Oric. Maybe you can help, because it is an emulator thing (I think). He is making a game with The Quill, and the first part is ready. He is working with Oricutron (last official version, I guess) and he was never able to save t...
by Chema
Wed Nov 13, 2019 10:57 pm
Forum: Operating systems
Topic: Sedoric 4.0
Replies: 44
Views: 48581

Re: Sedoric 4.0

The *drive belt* in those drives that use them is a weak link. The old Apple II+ "Disk II" drives had a belt drive -- with age these are now really unreliable BUT with a replacement belt, they are still usable. Direct drive drives (where a brushless "pancake motor" drives the disk directly) should ...
by Chema
Wed Nov 13, 2019 10:44 am
Forum: Operating systems
Topic: Sedoric 4.0
Replies: 44
Views: 48581

Re: Sedoric 4.0

Hmmm I'm using 3.5 disks quite a lot and they are quite reliable in my experience. Not only with the Oric, but also on Ataris, Amigas, CPCs... My old 3 disks, on the other hand, (CPC in this case) nearly all died probably because of humidity. What usually fails is the elastic band inside the floppy ...
by Chema
Sun Nov 10, 2019 3:04 pm
Forum: General Discussion
Topic: Connectivity problems (again)
Replies: 47
Views: 6360

Re: Connectivity problems (again)

Not sure how to translate it.. it is an option of the mobile version of Chrome to save data when loading pages... it is in the config. In any case, I have been told that there is some info about how to deal with this chinese crawlers here https://www.johnlarge.co.uk/blocking-aggressive-chinese-crawl...