Search found 613 matches

by iss
Mon Sep 08, 2014 10:09 am
Forum: Tape and floppy disk converters
Topic: Tap2Exe?
Replies: 47
Views: 27655

Re: Tap2Exe?

Godzil wrote:...on the 6522 (PB5 is not connected and would fit perfectly)
With the only drawback that programs which write to PB without preserving PB5 will switch ROMs - but this is expected ;).
by iss
Mon Sep 01, 2014 6:39 pm
Forum: Technical questions
Topic: Oric microdisk / 3.5" floppy disk CROSSED RIBBON cable query
Replies: 17
Views: 13103

Re: Oric microdisk / 3.5" floppy disk CROSSED RIBBON cable q

There is lot of info about floppies and cables on internet.
IMHO, on this page is short and good explanation.
Wires 10-14 should be twisted (instead 9-13). But I think you need NOT twisted cable and drive configured as 'B'.

BTW, your avatar confuses me...
by iss
Fri Aug 29, 2014 4:15 pm
Forum: Technical questions
Topic: oric sur moniteur RVB ?
Replies: 15
Views: 12880

Re: oric sur moniteur RVB ?

Here are 'schematics'. This is part of the well-known Oric schematic showing where to get AV signal: AV-out.jpg And this is the one-transistor stage: AV-cvt.png As you can see in first picture I removed R15 and RV1. They can remain, but than R0* (in second picture) should be used. As conclusion I ca...
by iss
Fri Aug 29, 2014 12:25 pm
Forum: Technical questions
Topic: oric sur moniteur RVB ?
Replies: 15
Views: 12880

Re: oric sur moniteur RVB ?

(post continues...)
7-inch LCD closeup
IMG043.jpg
Some HIRES :)...
IMG045.jpg
After Brightness/Contrast/Color adjustment from DVD menu colors are better...
IMG046.jpg
by iss
Wed Aug 27, 2014 8:42 pm
Forum: Technical questions
Topic: oric sur moniteur RVB ?
Replies: 15
Views: 12880

Re: oric sur moniteur RVB ?

Here are the pictures. This is my Pravetz with 7-inch LCD from broken portable DVD player. (The UHF modulator is removed since long time ago, of course you can leave it as is). IMG039.jpg Output signals: white = GND, red = 5V, green = composite video IMG041.jpg This simple 1 transistor inverter adju...
by iss
Sun Aug 03, 2014 12:54 am
Forum: Technical questions
Topic: oric sur moniteur RVB ?
Replies: 15
Views: 12880

Re: oric sur moniteur RVB ?

Most probably your device has only AV-input - this is CVBS or as Dbug already said input for composite video signal. You can use external RGB to Composite converter (simply search e-bay), relatively not cheap solution but it works. Else, if you like hardware hacking, there are 2 possibilities (atlea...
by iss
Thu Jul 31, 2014 5:03 pm
Forum: Games
Topic: Oricium feedback and review thread
Replies: 83
Views: 57437

Re: Oricium feedback and review thread

Congrats Chema!
Simply awesome! Thank you for your incredible work.
Now let's 'pump up the volume' ...
by iss
Wed Jul 30, 2014 2:59 pm
Forum: Games
Topic: Fast scrolling game howto, anyone?
Replies: 229
Views: 104176

Re: Fast scrolling game howto, anyone?

IIUC, here is my very quick idea: having one universal loader with correctly set name in tap header, when started, it checks for its unique name in 'last loaded program' buffer, if the check succeeded continue with tape loading routines, else switch to disk loading. But probably the case is more dif...
by iss
Thu Jul 24, 2014 9:54 pm
Forum: Cross development tools
Topic: Using Overlays with OSDK
Replies: 8
Views: 7275

Re: Using Overlays with OSDK

There is another problem with CC65 - it doesn't support any Oric OS (fopen/fread/fclose are unimplemented), so loading overlays from disk must be written from zero. I like CC65 but in this case I doubt it's worth to be used. Chema's idea is nice, clear and already tested :). Else, program overlays c...
by iss
Fri Jul 18, 2014 10:45 pm
Forum: Hardware hacks and extensions
Topic: How to build a cable to plug a tape device ?
Replies: 8
Views: 6739

Re: How to build a cable to plug a tape device ?

I think labels Data_In and Data_Out have the meaning 'where to plug into recorder' - so the picture is correct :).
by iss
Wed Jul 16, 2014 8:19 am
Forum: Emulators
Topic: Oricutron Jasmin auto-boot not working
Replies: 5
Views: 5379

Re: Oricutron Jasmin auto-boot not working

Nice fix! I can confirm that above patch allows Oricutron to load Jasmin images.
( i.e. under Linux this works: $ ./oricutron -m 1 -k j -d disks/ftdos.dsk )
I'll wait day or two, if nobody commits the patch, I'll do it :)
by iss
Sat Jun 28, 2014 12:36 pm
Forum: Technical questions
Topic: Lecteur Jasmin pour Oric
Replies: 14
Views: 10357

Re: Lecteur Jasmin pour Oric

I like this military design! :).
by iss
Mon Jun 16, 2014 9:59 pm
Forum: Demos
Topic: Looking for the Show Off "demo"
Replies: 2
Views: 4628

Re: Looking for the Show Off "demo"

Info about the exact issues found here: http://freespace.virgin.net/james.groom ... ftlist.htm
Oric Show Off - Originally printed in Oric Computing Issue 3, available on cassette.
Oric Showing Off Again - Originally printed in Oric Computing Issue 5/6, available on cassette.
by iss
Mon Jun 16, 2014 12:07 pm
Forum: General Discussion
Topic: Cumulus Issues
Replies: 358
Views: 138148

Re: Cumulus Issues

Thanks Godzil. I'm lucky that my 6502 is on socket, so it will be easier to solder the transistor. I'll post a picture when ready.
by iss
Mon Jun 16, 2014 9:53 am
Forum: General Discussion
Topic: Cumulus Issues
Replies: 358
Views: 138148

Re: Cumulus Issues

I'm very interested in 'Phi2 TR amplifier' and other 'Phi2 amplifier' shown in NightBird's table. What are this amplifiers? Does someone have more info about them? I have one Pravetz with positive pulse of Phi2 looking just like triangle :) So, I want to fix this but if there is already solution I p...