Search found 1641 matches

by iss
Thu Aug 24, 2023 12:17 pm
Forum: Hardware hacks and extensions
Topic: DRAMARDUINO - Dram tester with Arduino
Replies: 52
Views: 73793

Re: DRAMARDUINO - Dram tester with Arduino

Profke wrote: Thu Aug 24, 2023 7:23 amI want to be able to test these with that DRAMARDUINO....
Looking at datasheets 41256, HM50256 and MB81256 are the same!
ram256.png
What changes you think need to be done?
by iss
Fri Aug 18, 2023 8:38 am
Forum: General Discussion
Topic: Oric Atmos now at Vienna Retrogaming Musem ..
Replies: 4
Views: 1641

Re: Oric Atmos now at Vienna Retrogaming Musem ..

Congrats, @ibisum!
I'm sure I will come to visit the museum and hoping to be soon. 8)
by iss
Mon Aug 07, 2023 11:26 pm
Forum: Emulators
Topic: How to insert a new rom?
Replies: 9
Views: 2254

Re: How to insert a new rom?

how did you change the charset in the rom-file? Is there an instruction somewhere how to do this? Welcome here, @maprix! The above German ROM is original one and I didn't modified the charset in it. But changing the font in a ROM file is possible. Unfortunately there is no easy way i.e. no nice vis...
by iss
Sat Aug 05, 2023 8:19 pm
Forum: Operating systems, utilities and other serious software
Topic: CP/M on the Oric
Replies: 14
Views: 4338

Re: CP/M on the Oric

hjalfi wrote: Sat Aug 05, 2023 4:10 pmSigh.
Interesting! I didn't expect that BASIC is so heavy copyrighted. :)
FastBasic looks promising in standalone form.

Else, we have dflat by @6502Nerd.
I also have plan to run Lua on Oric one day...
by iss
Sat Aug 05, 2023 8:54 am
Forum: Operating systems, utilities and other serious software
Topic: CP/M on the Oric
Replies: 14
Views: 4338

Re: CP/M on the Oric

Dbug wrote: Sat Aug 05, 2023 7:21 am Technically you could also install your low bank in page 2 instead of page 4 (assuming you are not already using the page 2 for internal variables), that would give 256 additional bytes for the programs.

Code: Select all

DISK_BUFFER = 0x0200;
Page 2 is used for sector R/W buffer.
by iss
Fri Aug 04, 2023 8:24 pm
Forum: Operating systems, utilities and other serious software
Topic: CP/M on the Oric
Replies: 14
Views: 4338

Re: CP/M on the Oric

...It should work on Jasmin but doesn't and I don't know why. Well, it works! :D As soon as I read about the problem I thought of the reason - it costed me about a week head scratching when I worked on my ' quadro-booter '! It's general hardware rule after reset most (if not all) peripheral chips t...
by iss
Fri Aug 04, 2023 1:10 am
Forum: 6502 assembly coding
Topic: Fastest HIRES filling without page 0
Replies: 4
Views: 4013

Re: Fastest HIRES filling without page 0

The fastest way is absolute addressing without indexing. Or: 112 lines x 40 bytes x 3 byte for STA = 13440 bytes (hex: #3480) which is OK for experiments. :lol: You can generate the "program" from BASIC and here you are: 10 ' 1FFC 78 SEI 11 ' 1FFD A2 10 LDX #$10 12 ' 1FFF 8A TXA 13 ' ........
by iss
Thu Aug 03, 2023 11:49 pm
Forum: Hardware hacks and extensions
Topic: Mageco MIDI interface
Replies: 22
Views: 5271

Re: Mageco MIDI interface



Oric can parse MIDI files, send and receive MIDI events :D
by iss
Thu Aug 03, 2023 11:35 pm
Forum: Operating systems, utilities and other serious software
Topic: CP/M on the Oric
Replies: 14
Views: 4338

Re: CP/M on the Oric

Welcome here! Replied in X too: https://twitter.com/oric_iss/status/1687227076628099072 I'll check what's the issue with Jasmin and will add support for other 2 controllers. Also I can (and will) test with real hardware. There are some problems with the build (like undefined function 'cpm_parse_file...
by iss
Thu Jul 27, 2023 9:36 pm
Forum: Hardware hacks and extensions
Topic: Mageco MIDI interface
Replies: 22
Views: 5271

Re: Mageco MIDI interface

More news:



Oric has a mouse and it works perfectly!
The feeling is just like any other 'normal' computer with mouse :lol:
by iss
Tue Jul 25, 2023 2:44 pm
Forum: Hardware hacks and extensions
Topic: Mageco MIDI interface
Replies: 22
Views: 5271

Re: Mageco MIDI interface

Hi all! Some news about the # Oricon project: https://twitter.com/oric_iss/status/1683832139417272322 The project goes bit slower that I wish bit it's already in the final phase! :D I'm preparing lot of stuff for the hardware - demos, source code for diagnostics and communication programs. The best ...
by iss
Sun Jul 16, 2023 6:55 pm
Forum: C programming
Topic: vbcc optimizing C compiler now with Oric Atmos support
Replies: 79
Views: 15991

Re: vbcc optimizing C compiler now with Oric Atmos support

... Please, read the 4 previous posts! From formal point of view the byte should be $00 to indicate BASIC code (full stop) :). But let's push things further - what if we left it "as is" i.e. $80 and make the TAP autostart ... meme-contest.jpg I am announcing a prize-less just for fun BASI...
by iss
Sun Jul 16, 2023 6:43 pm
Forum: C programming
Topic: vbcc optimizing C compiler now with Oric Atmos support
Replies: 79
Views: 15991

Re: vbcc optimizing C compiler now with Oric Atmos support

Does it matter if the header says machine-code? Yes, definitely when basic startup code is used the header byte must be set to $00. The ROM loading routine checks it and uses different handling of the loaded data dependent on this byte . If it's machine code then Oric simply jumps in the void: :) J...
by iss
Sun Jul 09, 2023 1:59 pm
Forum: Operating systems, utilities and other serious software
Topic: Load Vader on disk?
Replies: 6
Views: 3243

Re: Load Vader on disk?

Screenshot_20230709_154715.jpg LOADVADER, LOADLUKE, LOADLEIA - nothing works ! So, the problem isn't with Star Wars! :lol: The issue is with the part 'LOAD' which is reserved word. Use LOAD"LOADVADER" instead... Sometimes adding '!' and double quotation helps too. Also check if the TAP is...
by iss
Sun Jul 09, 2023 11:41 am
Forum: Technical questions
Topic: Oric Atmos to bring back to life!
Replies: 17
Views: 5303

Re: Oric Atmos to bring back to life!

Now finally the Oric starts!!!!!!!!! But I have issues with the keyboard... Congrats, another Oric lives! Check closely all soldering pads of key switches and cable. Check if the newly soldered sockets really make a good contact - I had such magic and exactly on fixing key issues - when I measured ...