Denial

I really wished you'd said you were working on that...
Fantastic job though. It looks extremely complete.

I've been reluctant to release this disassembly because it's pretty rough. There are a lot of TODO's in here that could use a look at. Also, I forgot how large a chunk of the kernal is dedicated to tape access. Since that was not relevant to JiffyDOS, it remains uncommented for now. As I said before...

Mike wrote:Exin has drawn a great picture (a Fire Pokemon?) with fcbpaint.

It is a very nice picture! But, as a Pokemon expert , I can tell you that it is not a Pokemon. Similar to one though.
I'm also interested to hear if there's been any activity with this project.

Kweepa wrote: I don't care about JiffyDOS

Sorry, I didn't intend for that to be the focus of my post, but looking back I see it is. I suppose I don't see an issue with sharing the documented unmodified kernal. Give me 2-3 weeks. I'm at school (away from my computer) until the end of next week.

Maybe I should actually read what the Chameleon does - I thought it was a VGA output for the Vic-II chip on the C64 but I could be wrong. Dreams are free. As you've probably figured out, it is unfortunately waaaay more involved than that. If you want VGA out from the VIC-20 you're looking at a simi...

I think it would make a useful group project for the forums. If may be able to make that a very short project. :) I made an almost completely documented disassembly based off of Harlekin/Fairlight's C64 JiffyDOS disassembly last summer while working on a Vic-20 JiffyDOS port (still plan on finishin...

Yay! I liked this a lot.
edit: Oops, should've read the readme
The expanded version is great! It has a very cozy vibe. Perfect for the season. Thanks, Kananga.

I ended up not being able to stay the second day. I got back this morning, and am happy to report that it was really fun. I love listening to everyone talk about various things Commodore. I picked up some new fun stuff too: a 1541, JiffyDOS for the 1541, and a ZoomFloppy. Anyway, I took a few photos...

It's coming up! I'll be there at least for most of Saturday. I may potentially be there for the whole event.

It's a challenge seeing something all the way through to completion in this hobby, so congratulations for finishing this project at all. I just played it for a bit with the numpad in VICE, and my only real criticism is that the action seemed a little choppy/fast. If you used software sprites for the...

Yeah, 648 is set after the RAM test on start up and afaik nowhere else in the KERNAL. Obviously that will wipe your memory in the process. As long as the POKE works, that's not too ugly of a solution I guess.

The values stored in the KERNAL's table for $9005 (and bit 7 of $9002 I believe) do indeed position the video matrix elsewhere. Presumably to the positions for the expanded Vic-20, but I haven't verified this myself. For some reason this didn't occur to me before. My apologies. I haven't tested it, ...

I get a 404 on that link.

Bacon wrote:Sounds like a tip that should be in the "ROM calls" sticky thread.

Good idea.

$E5BB (58811): The KERNAL's routine to initialize the VIC registers ($9000-$900F)
$E5B5 (58805): Sets the cursor to the home position and calls $E5BB.