Denial

srowe wrote:

sjgray wrote:Here's another version with combined VIC/64 source:

This is very useful for comparing VIC vs C64 code. Any ideas which C64 ROM version this is?

Simon

It's version 3 as seen at line 17283.

Steve

Here's another version with combined VIC/64 source:

https://github.com/sjgray/cbm-edit-rom/ ... rtKirk.asm

My site, but contributed by Edilbert. Included in one of my github projects.

Steve

tokra wrote:I think it is supposed to work like this project:

http://www.go4retro.com/projects/converter/

However, as far as I can see, Jim never finished this one.

Actually, Jim had a few of these at a WOC show a few years back. I was able to pick one up.

Steve

Steve, In short: this tool is great as wedge, not so as KERNAL patch. A program that uses this tool needs to be fully aware of it anyway. In principle, it gains its merits just like any of the known BASIC extensions - you invest some memory into the wedge to simplify some other aspects in your own ...

I did a little investigating, and there is a potential problem putting this in ROM: The VIC-20 has a screen line-link table in zero page ($D9-$F1), that tracks when you print to the last character on the line, and if so updates the table to "link" the line to the next. That's how it knows ...

This would be nice as a replacement kernal, installed with a dual kernal switcher. Instant selection!

Steve

Yes, there are many ways to accomplish this. If the VIC (via 3K expansion) has the start of basic pointer set to the same address that the PET uses, then loading a PET program on the VIC will relocate it, and saving it back will save it with the new start address. You can modify the start of basic p...

Doesn't automatic relocation work on the PET ? The reason why the default LOAD procedure on the VIC-20 is on the datasette and relocates the code to the start basic address (LOAD vs LOAD" filename ",1,1 ) is to accommodate for the fact a BASIC program can work on a VIC with no expansion, ...

Hi, Inside a D64 disk image with random PET software, I found something called "Super Graphics 2.0" for the VIC-20. There was a PET program called "Super Graphics" but I don't know if they are related. I ran it in VICE - load,8,1 then sys to $3000 and I get the banner displaying ...

Many years ago I read about a replacement vic motherboard but couldn't get any info. Did it really exist? I don't know. I guess nothing happened, or maybe there was no interest. When I started learning Kicad I realized I'd need to make my own library of commodore parts/chips, so this was something t...

Hi, I've been learning Kicad and have a bunch of new projects I've been working on during the summer. I thought I'd share one with you. The VIC-20cr Reloaded: http://www.6502.org/users/sjgray/projects/vic20r/index.html And as part of that project I also came up with a concept for a VIC-GS, or VIC Ga...

Very cool!

Steve

Now I really wish i hadnt used that hole-punch...

Steve

Your 6502 mode problem could be a bad Kernal or Editor ROM. It seems like nothing is initializing the CRTC controller. Check socket continuity or swap in new roms.

Steve

A 40 column SuperPET with graphic keyboard would be interesting to see. The PET side would be fine, but I think the Super (6809) side would expect 80 columns. I think a 40/80 switcher would be vital in this case. I have a project to create the ultimate PET: http://www.6502.org/users/sjgray/projects/...