Search found 2614 matches

by Dbug
Sat Jan 14, 2006 2:11 pm
Forum: Audio tools
Topic: MYM Player
Replies: 7
Views: 13518

MYM Player

For people that want to replay existing Atari ST/MSX/Spectrum/Amstrad tunes, there is still the possibility to use the MYM player port I did some years ago. Some demo tunes are available here: http://www.defence-force.org/computing/oric/dbug/mymplay/index.htm It is also this player I used (in a slig...
by Dbug
Fri Jan 13, 2006 7:23 pm
Forum: 6502 assembly coding
Topic: Size optimisation: Compact subroutines
Replies: 6
Views: 8900

Sorry for the technical problems... I was not supposed to switch back to French language on the two last sentences :D Les calculs compliqués servent à récuperer le pointeur de pile pour changer l'adresse de retour pour corriger le PC+1 après le BRK. This means "the complex calculations are there to ...
by Dbug
Fri Jan 13, 2006 12:34 am
Forum: 6502 assembly coding
Topic: Size optimisation: Compact subroutines
Replies: 6
Views: 8900

Well, If you take a look at the intro in Cyclotron, I have a vectorial rendering engine to draw the TRON logo, then it appears by scrolling on screen. Then I also have a table of highscores to sort when inserting a new name. For generating the playfieds I have circle and rectangle drawing routines, ...
by Dbug
Thu Jan 12, 2006 8:58 pm
Forum: Hardware hacks and extensions
Topic: Building a microdisc compatible controller
Replies: 11
Views: 16953

Building a microdisc compatible controller

Sometime ago, Thierry Bestel made a new disk controller board based on the original oric microdisc design. Schematics and explanations about how to build this card have been published (in french) in the CEO Mag (numbers 147, 149 and 150). Somebody (Jean-Claude Bridier) decided to start building such...
by Dbug
Thu Jan 12, 2006 8:12 pm
Forum: 6502 assembly coding
Topic: Size optimisation: Compact subroutines
Replies: 6
Views: 8900

Ok, thanks. I downloaded the package, so here is the code you wrote/ This parts installs the BRK handler: lda #<irq_brk_handler ldy #>irq_brk_handler sta $0245 sty $0246 This is the BRK handler itself: irq_brk_handler sta saveA pla pha asl asl asl asl lda saveA bcs brk_handler jmp $EE22 brk_handler ...
by Dbug
Thu Jan 12, 2006 3:41 pm
Forum: Emulators
Topic: We know you're busy Fabrice but we wanna Atmosphere :)
Replies: 3
Views: 5296

Well, the Java version is über cool too. This Java version is particularly interesting when you want to show Oric stuff to people that does not want to install an emulator. It's direct 'click and watch' stuff. I would be very happy to have Java enabled versions of the demos on Defence Force, and the...
by Dbug
Wed Jan 11, 2006 11:53 pm
Forum: Audio tools
Topic: Your AY playroutine Mike :)
Replies: 13
Views: 17217

Well, you are talking of the routine I made in 1997, that I used in two demo screens: - The big scroller with 3 volume metters on top - The big bouncing Oric logos in the first multiscreen demo I made Well... this routine is crap, probably very bugged, not optimised, and I don't even have all the th...
by Dbug
Wed Jan 11, 2006 10:45 pm
Forum: General Discussion
Topic: New posts colors
Replies: 7
Views: 6969

We will see :)
Don't hesitate to signal any other problem like this.
by Dbug
Wed Jan 11, 2006 10:44 pm
Forum: 6502 assembly coding
Topic: Size optimisation: Compact subroutines
Replies: 6
Views: 8900

Size optimisation: Compact subroutines

Since I've been working on minigames, I have been struggling with trying to get the most possibly compact way of doing things. When I check back the code of 4KKong and Cyclotron , I notice that many things could have been improved, specially in the category of parameter passing. :? Typically, routin...
by Dbug
Wed Jan 11, 2006 11:26 am
Forum: General Discussion
Topic: New posts colors
Replies: 7
Views: 6969

Re: New posts colors

The colors don't seem to always work... I mean, with the huge number of forums you have created, quickly spotting which forum has new posts is a must-have feature... I saw once a forum icon in orange but it doesn't seem to work reliably (?) Obviously something goes wrong. I will have to investigate...
by Dbug
Tue Jan 10, 2006 2:07 pm
Forum: Games
Topic: Lode Runner thoughts
Replies: 17
Views: 29715

I found a page with screenshots of various versions: http://entropymine.com/jason/lr/screenshots/ I guess you are refering to these two particular versions: Apple 2 http://entropymine.com/jason/lr/screenshots/ap2.gif C64 http://entropymine.com/jason/lr/screenshots/c64.gif Blocs are 10x11 pixels ? Th...
by Dbug
Mon Jan 09, 2006 7:58 pm
Forum: Games
Topic: Minigames pages
Replies: 4
Views: 8560

Minigames pages

I was thinking about adding a page on this site with a list of all the Oric minigames released so far on the Oric, with the source code when available, and eventual technical comments by the authors. This would gave something like this: - Name of the game - Author - Year of participation - Category ...
by Dbug
Mon Jan 09, 2006 7:42 pm
Forum: General Discussion
Topic: General Discussion Forum
Replies: 3
Views: 4630

Re: General Discussion Forum

Thanks for these very-nice-looking forums, Mike ! It's true Usenet is more and more difficult to access (some providers swallow half of the messages, others only access from their own networks...). Yep I'm pretty sure that a number of people are not participating to the discussion because they cann...
by Dbug
Sun Jan 08, 2006 9:10 pm
Forum: Games
Topic: Compressing existing games
Replies: 1
Views: 4292

Compressing existing games

I don't know if it can be interesting, but it is possible (using Filepack and the OSDK) to compress some existing programs (the ones that are in one single file and 100% assembly code). The advantage is that of course the program taking nearly only 50%-70% (depending of type of data) of it's origina...
by Dbug
Sat Jan 07, 2006 5:04 pm
Forum: Painting tricks
Topic: Gallery oric
Replies: 1
Views: 7476

Gallery oric

If you can think of any cool graphics I can add in this page:
http://www.defence-force.org/computing/ ... /index.htm

Just tell :)
Even better, just include the picture in the board so everybody can comment on it :)