Search found 30 matches

by Malcohol
Tue Mar 09, 2021 4:25 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Thanks for that. I see it's closing now and I _am_ tempted. Alas, due to Brexit, it's no longer easy for me to buy from UK based sellers*. Thanks anyway, Malx * It's certainly still possible, but a bit of a hassle. If sellers use eBay's world shipping program, then the cost far too high. If they hav...
by Malcohol
Sun Jan 10, 2021 3:34 pm
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Hello again. I received the components of my MiSTer over the break, and I finally had a chance today to stick them together. In general, things seem to be working. However, as far as I can tell, the Vic 20 core doesn't load from the audio in port. Additionally there's no easy way to tell the system ...
by Malcohol
Thu Dec 31, 2020 2:50 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Yes, it is very similar to the Kansas City Standard. (The Z80NE looks interesting, btw. I hadn't heard of it before.) The WAVs I generate can be successfully read with minimodem. That suggests that the lowest level of encoding is correct. It doesn't validate higher level features like the checksum, ...
by Malcohol
Fri Dec 25, 2020 5:00 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

I wrote the code for generating the WAV myself (it's in this PR: https://github.com/robhagemans/basicode-interpreter/pull/45). It's certainly possible there's a bug, but it definitely works in some cases. What makes BASICODE interesting (at least for me) is that it really is a loader format common t...
by Malcohol
Thu Dec 24, 2020 7:09 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Hi. The basicode loader is working fine from that d64 that was posted earlier in the thread. I'm now trying to test a WAV I created containing data encoded in the BASICODE format. Since BASICODE was intended to be a widely supported common-language, I'd like to confirm my file is valid by loading it...
by Malcohol
Tue Dec 22, 2020 6:14 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Hi again. I've now been messing around with BASICODE itself. It seems that emulators and audio data converters seem to have quite a lot of trouble with it. I've tried various options, but the only success I had so far is with a combination of wav2prg and the vice c64 emulator. I can occasionally get...
by Malcohol
Wed Dec 09, 2020 2:32 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Thank you again. It works perfectly. Also, having the two programs neatly on one disk is very convenient.

I have a vague plan to write a BASICODE program, so it'll be nice to know it works on the Vic-20 (a machine I'm particularly fond of).

Malcolm
by Malcohol
Tue Dec 08, 2020 2:04 pm
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Hurray! It works! Thank you so much for that! It makes me really happy to know these things are not lost. For completeness, here's audio of the corresponding saving program (although that's less important since BASICODE programs can be created on any number of platforms): https://drive.google.com/fi...
by Malcohol
Tue Dec 08, 2020 12:25 pm
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Hi again. I have good-ish news. I managed to source a much better audio file of the vic-20 loader: https://drive.google.com/file/d/1iy7F3hiSYAGMwIh-ORYNU2TOWvJrdTAN/view?usp=sharing I got in touch with the developer of the "BASICODE in the browser" interpreter: https://robhagemans.github.i...
by Malcohol
Tue Dec 08, 2020 2:24 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

> Could I have the .tap file? I'll try to process it with some tools I have. Thanks for your offer. I used the following command with wav2prg: ./wav2prg --machine vic -t basicodeLoader.tap vic20Load.wav and I got this tap file: https://drive.google.com/file/d/1TMbaym6HlrSygtM8_EKmgP6tGxiCSyvr/view?u...
by Malcohol
Mon Dec 07, 2020 3:27 pm
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

@srowe: I've realized that your suggestion applies to decoding a basicode program on the vic 20. In fact, I haven't even gotten that far. I'm still trying to load the vic 20 program which enables basicode support. Thank you though. @nippur72: Thanks for trying. It seems that the recording isn't usab...
by Malcohol
Mon Dec 07, 2020 2:52 pm
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Re: Vic 20 Basicode

Thanks for your suggestion. Are there specific settings I should use with minimodem for vic-20 tape data?
by Malcohol
Sun Dec 06, 2020 11:48 am
Forum: Emulation and Cross Development
Topic: Vic 20 Basicode
Replies: 26
Views: 1899

Vic 20 Basicode

Hi there. I recently discovered Basicode ( https://en.wikipedia.org/wiki/BASICODE ), which was an attempt to define a subset of basic compatible with multiple 8-bit machines. I'd like to try it out, and while I've managed to download the software for several 8-bit machines, I've failed to locate a w...
by Malcohol
Wed Sep 05, 2012 5:17 am
Forum: Programming
Topic: 2012 Minigame Competition
Replies: 1
Views: 1073

2012 Minigame Competition

Hi all. It looks like the minigame competition is running again this year: http://minigamecompo.weebly.com/index.html I won't be entering this year, but I thought I'd let you know. The Vic is a great machine to target, since single-load games for the unexpanded machine are automatically eligible for...
by Malcohol
Mon Mar 19, 2012 3:55 am
Forum: Games
Topic: New Game: "Fickle" for unexpanded Vic-20
Replies: 23
Views: 16208

Thanks Jeff-20. It is indeed awesome to see something I've worked on mentioned in print. Even though most important news sites are web-based these days, it seems appropriate that 8-bit games be reviewed in magazines (just as they were back in the day). With regard to how I publicized it, I can't say...