Search found 4460 matches
- Thu Mar 07, 2024 8:03 am
- Forum: Games
- Topic: Loading tape games from disk
- Replies: 13
- Views: 3309
Re: Loading tape games from disk
But guys, I just realized that I have already all pieces of the puzzle - the 'improved' ROM1.1 form the #OricExos, the BOOTER (multi-FDC booter (FloppyBuilder will work too)), some glue routines, etc., So, it can be done! Wait for the demo... and give your suggestions which games/apps snapshots to ...
- Tue Mar 05, 2024 8:07 pm
- Forum: Games
- Topic: Loading tape games from disk
- Replies: 13
- Views: 3309
Re: Loading tape games from disk
Maybe I miss understood something, but why not simply do : CLOAD"Encounter" SAVE"ENCOUNTER" That's what I did with the result below... With Sedoric, yes, but here it's a FloppyBuilder project, there's no DOS, and the system ROM is not initialized. EDIT: Also, I want to load the ...
- Tue Mar 05, 2024 6:17 pm
- Forum: Games
- Topic: Loading tape games from disk
- Replies: 13
- Views: 3309
Re: Loading tape games from disk
I wonder what's the format of the snapshots.
I loaded Encounter.tap and saved a snapshot, ended up with a 116 912 bytes long Encounter.sna
I loaded Encounter.tap and saved a snapshot, ended up with a 116 912 bytes long Encounter.sna
- Mon Mar 04, 2024 9:47 pm
- Forum: Games
- Topic: Loading tape games from disk
- Replies: 13
- Views: 3309
Re: Loading tape games from disk
Multi-part and game with customer loaders are always going to be difficult without patching. In this particular case, I was considering if it would be possible to store the original Encounter game on the floppy, so people could do like what I did for The Hobbit: The possibility to launch the origina...
- Mon Mar 04, 2024 5:24 pm
- Forum: Games
- Topic: Loading tape games from disk
- Replies: 13
- Views: 3309
Loading tape games from disk
I remember I asked this question a long long time ago, but could not find the thread with the answer, so I'm going to ask here again. Assuming a Microdisc or Jasmin drive and the access to the overlay memory, and a single load game, what I'd like to do is: - Load a ROM (1.0 or 1.1) from disk - Load ...
- Mon Mar 04, 2024 11:41 am
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
65816!
Is it still running at 1mhz, or have you found a way to make it run faster than 1mhz now and then?
Is it still running at 1mhz, or have you found a way to make it run faster than 1mhz now and then?
- Mon Mar 04, 2024 10:12 am
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
So today I learned - don't put WD1770s straight on the bus, especially if its as hostile as the Oric's :lol: Indeed! #Oric is full with bad HW design examples and the worst one is to leave the CPU buses unbuffered and open to this cruel world :lol: Question: A number of people are trying to make re...
- Sun Mar 03, 2024 8:27 pm
- Forum: Games
- Topic: Upgrade Time: Encounter
- Replies: 169
- Views: 107657
Re: Upgrade Time: Encounter
Made a small video with a summary of the current state of what the game looks like.
- Sun Mar 03, 2024 1:17 pm
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
The main difference between TEXT and HIRES is that the ULA does two actual memory lookups when it need to display TEXT on screen (first read the character, then read the data for this specific character on this specific line of the screen), while in HIRES it technically only needs a single look-up t...
- Sun Mar 03, 2024 10:48 am
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
I'm dying to know which design choice came first for using the 4069: Was it first for Phi2 delay then second for A0-3 clamping, or the othe way around? The mixing of logic types makes it hard to follow. It would be very interesting to see a Jasmin checked with a scope before and after that Phi2 cir...
- Thu Feb 29, 2024 7:02 pm
- Forum: Hardware hacks and extensions
- Topic: Atmos replacement keyboard
- Replies: 9
- Views: 2965
Re: Atmos replacement keyboard
At some point I was imagining an Atmos modification to have a wider case, with a built-in numpad, but for practical reasons it would have been using modern cherry switches, the difficulty was to make the keycaps with the proper colors and markings, including the weirdly shaped SHIFT and RETURN keys ...
- Mon Feb 26, 2024 11:50 am
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
You can find all the Cumulus related documents there:
https://github.com/Dhebug/osdk_svn_impo ... re/cumulus
https://github.com/Dhebug/osdk_svn_impo ... re/cumulus
- Mon Feb 26, 2024 8:47 am
- Forum: Technical questions
- Topic: ULA, bus conflicts and the expansion devices
- Replies: 30
- Views: 2876
Re: ULA, bus conflicts and the expansion devices
I don't have the technical knowledge to answer these questions, but all I can say is that: - Quite a few Oric require a bus amplifier to work properly with external devices, the "Cumulus" device comes with its own ampli-bus directly on the connector, as an example. - I believe the Microdis...
- Sun Feb 25, 2024 3:18 pm
- Forum: Technical questions
- Topic: Trying to fix an Oric 1
- Replies: 17
- Views: 1210
Re: Trying to fix an Oric 1
Cool, well done
- Sat Feb 24, 2024 2:52 pm
- Forum: Technical questions
- Topic: Trying to fix an Oric 1
- Replies: 17
- Views: 1210
Re: Trying to fix an Oric 1
There's a section about the RESET on the Service Manual (page 35):
https://library.defence-force.org/index ... ch=service
https://library.defence-force.org/index ... ch=service