Search found 993 matches

by iss
Mon Feb 03, 2020 7:53 pm
Forum: Operating systems
Topic: Is BD-DOS lost to time?
Replies: 31
Views: 3993

Re: Is BD-DOS lost to time?

So I would assume that the 34-way cable is a standard Shugart floppy interface. +1! The list of things... It was not meant to be offensive in anyway! With full respect I'm sorry for the unsuccessful joke. Actually I was very excited to share the "discovery" about $31A. ;) Is there a side toggle? Is...
by iss
Sat Feb 01, 2020 4:33 am
Forum: Operating systems
Topic: Is BD-DOS lost to time?
Replies: 31
Views: 3993

Re: Is BD-DOS lost to time?

... but we move slowly further: :) side-by-side.png Clksignal and Oricutron side by side running BD-DOS! Do you notice the difference :shock: Yes, Oricutron supports more drives! :twisted: The secret is: write to address $31A - drive select as follow: switch( addr ) { case 0x31a: switch( data & 0b1...
by iss
Sat Feb 01, 2020 4:17 am
Forum: Operating systems
Topic: Is BD-DOS lost to time?
Replies: 31
Views: 3993

Re: Is BD-DOS lost to time?

Here is how the "Hybrid" cable looks: bd500.png Found in "Computer Answers" 1984/05 pages 19&20. Recently I found somewhere better picture but unfortunately I forgot to save it and now I can't track it again. But anyway I doubt that there is a hope to have the schematics :(. Even if we have the hard...
by iss
Tue Jan 28, 2020 3:13 pm
Forum: Tape and floppy disk converters
Topic: Using a Gotek to archive tape games?
Replies: 13
Views: 2639

Re: Using a Gotek to archive tape games?

This "oric-international" repository at github is created by DF-user norik but I think it's already abandoned.
norik was very active and big Oric fan in the past (last post here 2014.04.20) ... :(
by iss
Tue Jan 28, 2020 1:52 am
Forum: Operating systems
Topic: Is BD-DOS lost to time?
Replies: 31
Views: 3993

Re: Is BD-DOS lost to time?

* = 0400 .................................... 0415 2C A9 00 BIT $00A9 ; Unknown purpose. 0418 2C A9 07 BIT $07A9 ; Unknown purpose. .................................... 0475 F0 A2 BEQ $0419 ; This is impossible in the code as given, so presumably modification occurs? 0477 C9 01 CMP #$01 0479 F0 9B ...
by iss
Mon Jan 27, 2020 6:08 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 117
Views: 61636

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

Here one more tip for SDL/Linux users - starting clksignal with: $ MESA_GL_VERSION_OVERRIDE=4.5 LIBGL_ALWAYS_SOFTWARE=1 ./clksignal <path_to_media_file> should help on older machines which drivers doesn't support latest versions of OpenGL. You can try how it runs with only first, only second or both...
by iss
Sun Jan 26, 2020 2:36 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5672

Re: Jasmin time

Was that tested with only one Oric and one Microdisc or Jasmin unit? I'm using 4 Orics in the test and only 1 Jasmin drive. There is no difference when changing the Oric and I consider this as stable basis to search the issues in the Jasmin only. Else the quartz looks old but nice: quartz-8Mhz.jpg ...
by iss
Sat Jan 25, 2020 11:02 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 117
Views: 61636

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

Thanks for your effort! One more thing but only related to myself: RTFM - there is difference between this two calls: ./clksignal --quickload --output=composite test.dsk and ./clksignal test.dsk --quickload --output=composite Only the second works! EDIT again : More tests and it works fine in RGB wi...
by iss
Sat Jan 25, 2020 10:51 pm
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 117
Views: 61636

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

Hm, this will be not easy to fix - sorry to bother you! Here is a list with commits in back order with status of the SDL issue: https://github.com/TomHarte/CLK/commit/e7fff6e1236f48d805bde8db13ea6c922f13a600 - not working https://github.com/TomHarte/CLK/commit/4de121142bdf6363476a1ad92673ff9456733d1...
by iss
Sat Jan 25, 2020 3:32 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5672

Re: Jasmin time

Have you tested the clock signal on the Jasmin? The clock is 8MHz with acceptable tolerance, not very good looking but here the oscilloscope is to be blamed: 8mhz.png More important there is definitely a drift between 8MHz clock and the 1MHz F2 signal i.e. the phase difference is not constant. One ...
by iss
Sat Jan 25, 2020 1:49 am
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 117
Views: 61636

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

Cool! Tested with macOS and works, but any chance to have SDL fixed too? ;) Now RGB mode freezes with black window and both composite modes issue "Segmentation fault". EDIT: Maybe the log below will help, but it's strange why clksignal stopped to work - I don't see changes related SDL. [WD FDC] Idle...
by iss
Thu Jan 23, 2020 10:24 pm
Forum: Games
Topic: Fifteen Puzzle [raxiss]
Replies: 5
Views: 1131

Re: Fifteen Puzzle [raxiss]

p15v100.png
p15v100.png (56.89 KiB) Viewed 1126 times
... and a spoiler from me (just to justify the presence of my nick in the title ;) ).
by iss
Thu Jan 23, 2020 10:30 am
Forum: Emulators
Topic: Oricutron 1.0 (EDIT: Now 1.2)
Replies: 171
Views: 121376

Re: Oricutron 1.0 (EDIT: Now 1.2)

Normally Oricutron uses SDL ver.:1.2, but for porting it to Android we needed to use SDL ver.:2.0 as result there are 2 binaries respectively for both SDL versions. I'll check what can be the source of the difference between both audio captures.
by iss
Wed Jan 22, 2020 12:55 am
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5672

Re: Jasmin time

Here attached is the DSK image used in the read/write test. Now the next annoyance is why the reading with polling is OK but the writing always fails with error status 0x04 - LOST DATA, which means writing loop is late to supply next byte. The strange thing here is that the code is exactly the same ...
by iss
Wed Jan 22, 2020 12:17 am
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5672

Re: Jasmin time

Well, good news! Jasmin reads tracks error free with polling : https://youtu.be/FAOmyCZPgXc Jasmin reads tracks with polling and writes them back with IRQ - error free! https://youtu.be/sf9br3g_C0Q After spending lot of time with the annoying errors (bad status read from the FDC if video related mem...