Search found 1096 matches

by tokra
Sun Sep 10, 2023 3:05 am
Forum: Other Systems
Topic: New Release: PETSTRIP for PET/CBM 3032 and 4032
Replies: 5
Views: 2162

New Release: PETSTRIP for PET/CBM 3032 and 4032

screenshot.png Download: https://www.pouet.net/prod.php?which=95051 YouTube: https://www.youtube.com/watch?v=RxBvDF5CpSo Commodore PET entry for the Wild competition @Nordlicht 2023. This game uses a newly developed graphics-mode called PECBM11 which provides a resolution of 88x200 pseudo-hires pix...
by tokra
Wed Jun 14, 2023 3:05 am
Forum: General Topics
Topic: Jeff's VIC 20 Book
Replies: 268
Views: 27849

Re: Jeff's VIC 20 Book

Hmm, I checked the USPS-site and entered your dimensions. The the cheapest I could find was "First-Class Mail International" ($13.50 to Germany, $6.03 to Canada). https://www.usps.com/international/first-class-mail-international.htm You can try yourself here: https://postcalc.usps.com/ Val...
by tokra
Tue May 30, 2023 3:50 am
Forum: General Topics
Topic: Jeff's VIC 20 Book
Replies: 268
Views: 27849

Re: Jeff's VIC 20 Book

PROBLEM: 1. Lulu only offers the lowest print quality available for global distribution. 60lb. paper. Sigh. (I promised heavy stock.) 2. Lulu only offers one sided covers! I planned the book for my printer and designed a four side color cover. 3. Coil binding is not available for global distributio...
by tokra
Tue May 23, 2023 2:04 am
Forum: General Topics
Topic: Jeff's VIC 20 Book
Replies: 268
Views: 27849

Re: Jeff's VIC 20 Book

"Unintended" seems to be the genereal consensus nowadays. "Undocumented" makes it read as if they were intented but just not documented. The "No More Secrets"-PDF that is updated each year at Christmas also calls them "unintended" and this seems to be the go-t...
by tokra
Thu May 11, 2023 12:57 pm
Forum: Hardware and Tech
Topic: Mega-cart issues?
Replies: 13
Views: 2817

Re: Mega-cart issues?

It could always be a bad connection. That other carts work does not say much, since the MegaCart may well use different memory-areas and pins than the standard game-cartridge. Have you tried plugging the MegaCart in and out a few times (at least 5?). This may improve the connection. I know my MegaCa...
by tokra
Wed Apr 26, 2023 12:50 pm
Forum: Games
Topic: New Game: VICSTRIP
Replies: 15
Views: 4606

Re: New Game: VICSTRIP

Haha when the VIC took off its box, I was a little excited. I thought it might strip down to the circuitry. That actually was the first idea, however the converted images of the mainboard did not look that good, so I came up with the idea of the "recursive" final picture for the VIC from ...
by tokra
Wed Apr 19, 2023 3:30 am
Forum: Hardware and Tech
Topic: FPGA 6561 - PAL Questions
Replies: 25
Views: 4627

Re: FPGA 6561 - PAL Questions

Tokra, Mike - if I added Interlace to the PAL FPGA, do you think you'd be able to put together a demo that shows it off? Hehe, "able to" - yes, probably. Should not be much different than NTSC. However I am not really interested in doing so :mrgreen: Effectively this would only work on yo...
by tokra
Tue Apr 18, 2023 8:28 am
Forum: Programming
Topic: Porting CP/M to the VIC-20: memory map questions
Replies: 10
Views: 1019

Re: Porting CP/M to the VIC-20: memory map questions

With a 160x192 mode you can get 40x24 chars. This fits in the 4K-area from $1000-$1fff. Use chars 16 to 255 at $1000 and start the character-RAM at $1100. This has been the standard-setup and has been used by MINIGRAFIK i.e. Otherwise you are correct. You cannot get more than 24K contiguos RAM with ...
by tokra
Sat Apr 15, 2023 8:21 am
Forum: Programming
Topic: ** New Frontiers in VIC-Hires-Graphics, Part 18
Replies: 2
Views: 536

** New Frontiers in VIC-Hires-Graphics, Part 18

http://www.tokra.de/vic/hfli/hfli.png Download HFLI-mode (used in VICSTRIP ) A new graphics-mode for PAL combining high-resolution with BASIC-interoperability: 168x160 HFLI (8x2 colour-blocks and raster-splits for $900e and $900f every 2 lines) . Provided in the downloadable archive are a Slide Sho...
by tokra
Fri Apr 14, 2023 12:06 pm
Forum: General Topics
Topic: Happy Easter Greetings from Revision 2023!
Replies: 8
Views: 2759

Re: Happy Easter Greetings from Revision 2023!

Here is the live-video from the party:

https://www.youtube.com/watch?v=iHhNp57tZXE

And here are some photos from the prizegiving:

http://tf.weimarnetz.de/revision2023/Pr ... G_4083.JPG

Use the arrows on top to flip through the next pictures.
by tokra
Thu Apr 13, 2023 3:36 pm
Forum: Hardware and Tech
Topic: FPGA 6561 - PAL Questions
Replies: 25
Views: 4627

Re: FPGA 6561 - PAL Questions

I don't think you need an invitation, just register here: https://www.forum64.de/wcf/index.php?sc-terms-of-use/&aboutToRegister=1&l=2 Should be in english. Otherwise you can switch langages at the top left. Most people on the Forum will be fine if you PM them in english, I guess. To be safe,...
by tokra
Wed Apr 12, 2023 11:19 am
Forum: Programming
Topic: 8-direction+fire Joystick
Replies: 6
Views: 509

Re: 8-direction+fire Joystick

I remember there being such an assembler joystick-routine in the book "Programming the VIC" to be found here:

https://commodore.bombjack.org/vic-20/books-vic.htm
by tokra
Tue Apr 11, 2023 12:24 pm
Forum: Emulation and Cross Development
Topic: Conversion of VIC-SSS-MMX to CBM prg Studio
Replies: 23
Views: 4283

Re: Conversion of VIC-SSS-MMX to CBM prg Studio

There are some "illegal"-opcodes describet in "no more secrets" and i found some interesting optimazion for the sprite stack. The SSSXYPrintS can be done by the LAX opcode instead of LDA/LDX and saves 9 cycles. The check with the newest SpriteStack version runs normal. Unless ab...
by tokra
Tue Apr 11, 2023 4:44 am
Forum: Games
Topic: New Game: VICSTRIP
Replies: 15
Views: 4606

Re: New Game: VICSTRIP

Thanks, Mike, for posting this. I arrived back home at 10 p.m. yesterday and am just now "back to life". The idea for this game actually dates back around 12 years . The graphics-mode used for this was already finished in 2019, aiming for a 2020-release. Then the pandemic hit. I was also w...
by tokra
Fri Mar 31, 2023 7:49 am
Forum: Collecting and History
Topic: Commodore trademarks in Canada
Replies: 4
Views: 2517

Re: Commodore trademarks in Canada

In fact the Commodore-ROMs current owner appears to be Cloanto. At least they seem to have the best claim to those as the copyright-situation is kind of murky since Commodore's demise. Whether the claim is valid or not, what it comes down to is: Do you want to risk to be sued by Cloanto or not? See ...