Search found 2448 matches

by Chema
Tue Apr 09, 2019 1:27 pm
Forum: Cross development tools
Topic: CRTC Pasta assembler
Replies: 4
Views: 538

Re: CRTC Pasta assembler

- .scope instead of .( and .) The .( and .) for scoping is probably the best feature of XA! at least for me! I use it nearly all the time as a way to delimit my functions (such as braces in C), even when I am not using local labels. Being able to use "loop" in all my loops is priceless :) That and ...
by Chema
Mon Apr 08, 2019 9:27 am
Forum: Technical questions
Topic: Cumulus with Wifi/SD Card?
Replies: 12
Views: 1251

Re: Cumulus with Wifi/SD Card?

I remember I had to use a special formatting tool to make a card work. Something related to the structure (MBR being present or something along that line). In the Cumulus firmware thread there is some info... Found it: http://forum.defence-force.org/viewtopic.php?f=9&t=1035&hilit=cumulus+sd+card&sta...
by Chema
Fri Apr 05, 2019 1:59 pm
Forum: Tape and floppy disk converters
Topic: Jasmin/FTDOS to Microdisc/Sedoric
Replies: 5
Views: 776

Re: Jasmin/FTDOS to Microdisc/Sedoric

C'mon guys! I can't believe nobody has information about this... Also, I wrote in another thread about Blake's 7 not running on real Jasmin (it does on emulators). I think iss had some ideas, but I could not get more tests and I don't have a Jasmin myself. Please, iss, if you had some idea about wha...
by Chema
Wed Apr 03, 2019 1:52 pm
Forum: Technical questions
Topic: Cumulus with Wifi/SD Card?
Replies: 12
Views: 1251

Re: Cumulus with Wifi/SD Card?

I am quite sure I posted about people using the ESP 8266 (https://es.wikipedia.org/wiki/ESP8266) chip to add wifi to 8-bit systems. The chip includes a full implementation of a TCP/IP stack and you control it using SPI. The only issue was that it needed a serial port on the host computer, which shou...
by Chema
Tue Apr 02, 2019 12:04 pm
Forum: Games
Topic: John S. Sinclair on Oric.org
Replies: 25
Views: 13830

Re: John S. Sinclair on Oric.org

Same here :) Zorgons was my first game in the Oric, and I found it amazing (though time has proven there was room for improvement in gameplay). I am curious about how he faced a development such as this one, why the Oric, why not other platforms also, and what he did after these games. And I'd love ...
by Chema
Sun Mar 31, 2019 1:54 pm
Forum: General Discussion
Topic: Thoughts about WAV tapes repository
Replies: 14
Views: 1351

Re: Thoughts about WAV tapes repository

I am not sure about the benefits of storing real wavs, sure you mentioned some, but they are relates to purists and collectors. That's okay for me, of course. But for the normal user, only those tapes with strange formats that cannot be coded as Taps (protections, different encodings,...) would bene...
by Chema
Tue Mar 26, 2019 10:05 pm
Forum: General Discussion
Topic: How good (or bad) my English knowledge is? - NonRelated question
Replies: 10
Views: 1132

Re: How good (or bad) my English knowledge is? - NonRelated question

I was not going to answer, because English is not my native language, but I'll say I can understand you perfectly (besides the occasional mistakes here and there we all make). Nevertheless, I can speak about those exams including idiomatic phrases, phrasal verbs and even slang... It is quite common ...
by Chema
Thu Mar 21, 2019 7:20 pm
Forum: Technical questions
Topic: Oric Microdisc: Master/Slave selection
Replies: 11
Views: 1565

Re: Oric Microdisc: Master/Slave selection

Did you manage to get it working, Dbug?

Keep us informed :)
by Chema
Tue Mar 19, 2019 11:22 am
Forum: Technical questions
Topic: Atmos ROM 1.1, 1st version (called 1.1a, checksum A65D6CED)
Replies: 5
Views: 711

Re: Atmos ROM 1.1, 1st version (called 1.1a, checksum A65D6CED)

I am quite sure my Atmos has that ROM too (based on the research done when working on the fast load of SkoolDaze with Fabrice and Symoon) and this ROM came from a 1-to-Atmos conversion kit.
by Chema
Sat Mar 16, 2019 5:42 pm
Forum: Technical questions
Topic: Oric Atmos Won't Initialise
Replies: 18
Views: 1806

Re: Oric Atmos Won't Initialise

4.85v is too low. A component may be faulty. Most of the time it is a memory chip, but if no chip gets hot, it is difficult to tell. It could be almost anything. You can start from removing the socketed chips (ULA and ROM) and check if you get something near 5 volts. You have a good screen image, so...
by Chema
Mon Mar 11, 2019 5:26 pm
Forum: Technical questions
Topic: Oric Microdisc: Master/Slave selection
Replies: 11
Views: 1565

Re: Oric Microdisc: Master/Slave selection

Aha... look at what it says in the first document (Microdisc 1)
dip.png
dip.png (8.58 KiB) Viewed 1479 times
So I am even more convinced that the right set of pins are for configuring the drive number.

Thanks for this iss, it is a very interesting doc. Maybe worth to be stored on the DF library, don't you think Dbug?
by Chema
Sun Mar 10, 2019 5:46 pm
Forum: Tape and floppy disk converters
Topic: Jasmin/FTDOS to Microdisc/Sedoric
Replies: 5
Views: 776

Re: Jasmin/FTDOS to Microdisc/Sedoric

Some time ago I asked about info on the Jasmin FT Dos format, so it could be supported I. Oric Explorer for those owning a Jasmin. If you find anything, please let me know.
by Chema
Sun Mar 10, 2019 5:44 pm
Forum: Technical questions
Topic: Oric Microdisc: Master/Slave selection
Replies: 11
Views: 1565

Re: Oric Microdisc: Master/Slave selection

Yeah, but the jumper/switch area is different :(

Again, my guess is that it is the right 4 jumper set what you are looking for. Moreover when the second picture shows a much similar drive with the left set completely removed. Worth a try.

I don't think you could damage the drive.
by Chema
Sun Mar 10, 2019 5:22 pm
Forum: Technical questions
Topic: Oric Microdisc: Master/Slave selection
Replies: 11
Views: 1565

Re: Oric Microdisc: Master/Slave selection

The controller supports several drives, I can confirm that from my clone. It follows the Shuggart specification, which means that the drive, from 0 to 3, is selected with a signal in the bus. A flat cable is used. The drive should have a set of jumpers or DIP switches to configure it as ds0-3. I fou...
by Chema
Thu Mar 07, 2019 8:54 pm
Forum: 6502 assembly coding
Topic: How to create random number with machine code?
Replies: 12
Views: 3598

Re: How to create random number with machine code?

Just for the records. The routine I posted before (made by a friend of mine) produces a repeatable series of numbers between 0 and 32768 (repeatable if the seed is re-used, that is), with quite nice randomness properties. Matlab's randomness test shows: [h,p]=runstest(v, median(v)) Warning: X values...