Search found 783 matches

by tokra
Sat Aug 19, 2017 11:02 am
Forum: Programming
Topic: Raster split and $9002
Replies: 48
Views: 810

Re: Raster split and $9002

IMG_1351.jpg
Real VIC20 PAL


IMG_1352.jpg
VICE 33524


No flicker on real VIC-20 here, although I use a TFT which just MIGHT delete the flicker... the other artifacts are harder to explain. What is displayed here? Could it be memory that is initialized differently on real machines and VICE?
by tokra
Wed Aug 16, 2017 3:29 pm
Forum: Games
Topic: Sprites and Color Clash
Replies: 6
Views: 207

Re: Sprites and Color Clash

Dragonfire by Imagic is in my opinion the most technically impressive one for it's sprite-techniques which predate VIC-20-Pitfall by about 30 years. Just look at the player "sprite" which is in hires-mode, yet has multiple colors, which are kept even when the player jumps. I think it uses ...
by tokra
Wed Aug 16, 2017 6:34 am
Forum: Games
Topic: Sprites and Color Clash
Replies: 6
Views: 207

Re: Sprites and Color Clash

Also see my post here regarding color-clash and how to avoid it.

Pitfall can be found here.
by tokra
Fri Aug 11, 2017 5:23 pm
Forum: Games
Topic: In the making: Arukanoido – an Arkanoid clone
Replies: 269
Views: 11878

Re: In the making: Arukanoido – an Arkanoid clone

I think the original Commodore-carts only allowed to move right and down with the cursor-keys, just flipping over to leftmost/top-position after a sensible number of moves. HJKL is probably something no one would ever guess without looking at the manual, but they might try using the cursor-keys as w...
by tokra
Sat Aug 05, 2017 1:28 pm
Forum: Programming
Topic: Raster split and $9002
Replies: 48
Views: 810

Re: Raster split and $9002

This would be a good starting point for your investigations I think: http://sleepingelephant.com/ipw-web/bulletin/bb/viewtopic.php?f=2&t=7225&p=80464#p80464 Have a look at 4mat's demo-part and see what he does with VICE-breakpoints. Also see my post further down that thread and Mike's explan...
by tokra
Fri Aug 04, 2017 10:43 am
Forum: Games
Topic: In the making: Arukanoido – an Arkanoid clone
Replies: 269
Views: 11878

Re: In the making: Arukanoido – an Arkanoid clone

Bad news: that psychopathic turbo capitalism got me by the balls once too often now. If you want to play the full version of "Arukanoido" you'll have to buy a tape. No downloads. Sorry. :( Hmm, while I understand the need to make some money off the game, and I will certainly buy a copy, t...
by tokra
Sat Jul 15, 2017 2:56 am
Forum: Buy, Sell, and Trade
Topic: FOR SALE: VIC20 FULL-RAM expansion cartridge +37K RAM with RESET!
Replies: 17
Views: 513

Re: FOR SALE: VIC20 FULL-RAM expansion cartridge +37K RAM with RESET!

Your binary does not work with SYS4000 (it still loads to $9800). However, I compiled a version to $9c40 a while back to be found here: http://www.tokra.de/vic/2kexpansion/sjload$9c40-s.prg This is most likely the same reduced version that is also on the MegaCart. When compiling SJLOAD you can turn ...
by tokra
Mon Jun 26, 2017 3:42 pm
Forum: General Topics
Topic: SVIDEO vs SCART
Replies: 5
Views: 119

Re: SVIDEO vs SCART

S-Video is definitely the way to go, but you have to make sure your output device actually supports it. Lot of newer TVs don't. Either way, even doing the S-Video-mod and then converting that signal back to composite gives a better quality than the composite-signal the VIC originally produces.
by tokra
Sat Jun 17, 2017 4:33 am
Forum: Programming
Topic: Maxi-/Uber-Edit
Replies: 35
Views: 1653

Re: Maxi-/Uber-Edit

I've found a small bug that would strangely only show on real VIC-20. If you pressed STOP/RESTORE the VIC-20 would sometimes crash and sometimes go back to normal display mode. I've cleared up the vector-setup-routine and this seems to fix it. I've updated the files on my webpage to the most recent ...
by tokra
Fri Jun 16, 2017 4:17 pm
Forum: Emulation and Cross Development
Topic: VICE questions - Mac
Replies: 5
Views: 131

Re: VICE questions - Mac

See chapter 2.5 here:

https://github.com/bobsummerwill/VICE/b ... MacOSX.txt

Should be ESC+ FN+Cursor UP then for RESTORE
by tokra
Fri Jun 16, 2017 6:05 am
Forum: Emulation and Cross Development
Topic: VICE questions - Mac
Replies: 5
Views: 131

Re: VICE questions - Mac

vicassembly wrote:2. I cannot figure out the keys to run/stop restore. I believe run/stop is the escape key because when I press shift-escape it does a LOAD

ESC is the STOP-key, so far you are correct. "Page up" should be the RESTORE-key. So if you do ESC+PG UP you should get STOP/RESTORE.
by tokra
Fri Jun 09, 2017 6:52 am
Forum: Games
Topic: Work in progress: REALMS OF QUEST V
Replies: 341
Views: 10108

Re: Work in progress: REALMS OF QUEST V

Why not use the existing UltiMem-cartridge for such a project? It is an existing and working platform that provides everything a game like this would need. 8 MB of Flash-ROM and 1 MB of RAM. Hacking together yet-another-cart just seems overkill to me. Anyways, first the game should be completed. Run...
by tokra
Fri Jun 02, 2017 4:21 am
Forum: Programming
Topic: 4ty - 40x25 interlaced text mode on unexpanded VIC 20
Replies: 15
Views: 517

Re: 4ty - 40x25 interlaced text mode on unexpanded VIC 20

Great stuff! I had the same idea a while back, and remember discussing it with Mike, but disregarded it because of the flicker. Kudos for being crazy enough to implement this :D I see that you do not use the "native" interlace-mode when using NTSC. I noticed during my experiments with NTSC...
by tokra
Thu May 18, 2017 4:15 am
Forum: Games
Topic: In the making: Arukanoido – an Arkanoid clone
Replies: 269
Views: 11878

Re: In the making: Arukanoido – an Arkanoid clone

I like the 4x8 font Mike uses best:

viewtopic.php?t=7560#p81381

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