The C64 Does have a Vic-20 Mode and it's great

[AndyH]

There’s an online manual that is really good with much information about exactly what to do. PRG, Tap and disk images are fine. Here I’m talking about cartridge images. The two I tried ended in a0 and 60 if I remember correctly and I renamed both to use the crt extension instead, and changed the file name to indicate if it was memory address A000 or 6000.

[javierglez]

Submarine Commander which didn't - but I probably did something wrong with that one.

I reckon Submarine Commander was released as a tape (Thorn EMI) - it's one of the few originals I own. I guess someone converted it to be included nto some multigames cartridge. I don't know if that's relevant for your issue.

[AndyH]

I have it on tape also, and might be mistaken, but sure I saw it on a cartridge on eBay before. I haven’t retried it but it’s on my list to get working as I love that game. I’ll look for a tape version image.

[javierglez]

There's a binary, you have to load,8,1 and then sys8192. There's the loader which does that, but for some reason it isn't getting to the sys. https://drive.google.com/file/d/1J8fGdK ... p=drivesdk

[eslapion]

Submarine Commander which didn't - but I probably did something wrong with that one.

I reckon Submarine Commander was released as a tape (Thorn EMI) - it's one of the few originals I own. I guess someone converted it to be included nto some multigames cartridge. I don't know if that's relevant for your issue.

16k Cartridge images on Zimmer's... BLK3 and BLK5 and incidentally, also included on the Behr-Bonz multicart.

http://www.zimmers.net/anonftp/pub/cbm/ ... r-6000.prg

http://www.zimmers.net/anonftp/pub/cbm/ ... r-a000.prg

[funkheld]

Hi good afternoon.
I still have the c64 at the age of 70
bought in germany. just unpacked.

start tomorrow with the vic20 on the c64.
I'm looking forward to your help.

Thank you.
greeting

[Witzo]

The 8-bit guy has a review up on Youtube!
https://www.youtube.com/watch?v=kxx2F4ffmeE

[eslapion]

The 8-bit guy has a review up on Youtube!
https://www.youtube.com/watch?v=kxx2F4ffmeE

The keyboard's insides is rather underwhelming!

Added edit:
8-Bit Show And Tell says there is a way to enable the REU. https://www.youtube.com/watch?v=z2GACGEucTI

See at 31:36

[funkheld]

hello, thanks for the help.


greeting

[Witzo]

The 8-bit guy has a review up on Youtube!
https://www.youtube.com/watch?v=kxx2F4ffmeE

The keyboard's insides is rather underwhelming!

Added edit:
8-Bit Show And Tell says there is a way to enable the REU. https://www.youtube.com/watch?v=z2GACGEucTI

See at 31:36

A longer look at the TheC64, thanks! An actual Commodore keyboard is a big reason for me to want one. Proper restore, control and commodore keys and an up arrow! Will make typing easier than on a mapped keyboard.

[Tom]

Extract from user guide:
---------------------------------------------------------------------------------
Use of 'Flags' or Flags for loading games and / or programs

...

Having learnt about these today, I've adopted all of the relevant ones in my Vic-20 emulator, Clock Signal. It otherwise tries to sniff out memory configuration based on loading address, and uses an NTSC machine if 'NTSC' is in the file name; now if TheC64-style file tags are found they'll be applied as a final step, overwriting any other guesses.

Specifically: I support B0-B5 and TP/TN. If it emulated a C64 it'd support more, but it doesn't.

(a .crt like format for vic20 is one of the many things on our todo list.... some day perhaps =P)

I would definitely implement support for this, as the current approach that sometimes leads to multiple files representing a single cartridge is problematic for users, especially under modern sandboxing — depending on platform, a modern piece of software isn't necessarily granted the right to open any old file it likes just because the user has done something to give it access to one, even if they're within the same folder.

[groepaz]

depending on platform, a modern piece of software isn't necessarily granted the right to open any old file it likes just because the user has done something to give it access to one, even if they're within the same folder.

what kind of weird platform would that be?

[Tom]

depending on platform, a modern piece of software isn't necessarily granted the right to open any old file it likes just because the user has done something to give it access to one, even if they're within the same folder.

what kind of weird platform would that be?

Any in-browser emulator, most obviously, which are increasingly just regular C/C++/etc emulators cross-compiled into JavaScript; the macOS sandbox also has this feature*. If you're distributing outside the App Store, possibly because you're an emulator, then it's opt in but I opt in, in the pursuit of user trust.

Also, just occurring to me now, I guess the cloud is another case in which an emulator might have difficulty grabbing an associated file of its own volition, since some cloud services provide browsers that show all of your remote files, but download and cache only those you actually ask to open. Most applications don't just open files without the user being involved in explicitly pointing them out so that's not usually a defect.

* source: Apple's App Sandbox Design Guide; look for "If a user instead opens a specific file, or saves to a new file, the system makes the specified file, and that file alone, available to your app."; there's a special routecase "multiple related files with the same name and different extensions" but that's not quite what tends to happen here. It's also a bit of a hassle. Just having a single .crt-esque file representing an entire cartridge would be a lot easier.

[eslapion]

(a .crt like format for vic20 is one of the many things on our todo list.... some day perhaps =P)

Considering how almost all VIC-20 cartridges of the 1980s were turned into single filers by one man and how they are stored in the Behr-Bonz, I'd sure like to give my 2 cents worth on this... more to follow.

Added edit:
http://sleepingelephant.com/ipw-web/bul ... =14&t=9554

It's also a bit of a hassle. Just having a single .crt-esque file representing an entire cartridge would be a lot easier.

Somebody did it for you back in 1981... see above link.

[sjakie43]

Hello,


I'm having some trouble loading the game Jet-Pac on this C64 /Vic20 console

Its the Prg file from Gamebase Vic20 and needs an 8k ram expansion.

It returns to the vic20 screen with some garbled characters and blinking cursor.

Does this game needs some poke/sys/different blocks in stead of the standard blocks needed for 8k ram expansion?

Regards

Sjakie43

Btw: the TAP version of this game works fine(3k ram expansion)