Sid Vicious - VIC 20 SID emulation

blackystardust · Post by **blackystardust** » Thu Jul 12, 2007 11:30 am

@Wonderboy

Would you be willing to Email 2 prg files and the source zip file to blackystardust68@yahoo.com ?

Mike · Post by **Mike** » Mon Feb 02, 2009 1:30 pm

I recently ported Cybernoid II to SID Vicious.

You'll need RAM in BLK5. Also, if the autostart feature of VICE is used, there should be RAM in BLK1, so the program "PLAY" is loaded to the right address. (<- i.e. simply set to full expansion in VIC Settings ...)

Some effects are missing, still I think it's a faithful rendition.

Enjoy,

Michael

Edit: d/l link repaired

DELETED · Post by **DELETED** » Wed Feb 04, 2009 4:32 am

DELETED

Pedro Lambrini · Post by **Pedro Lambrini** » Wed Feb 04, 2009 4:31 pm

This is just too cool! Great work Mike. It's really mindblowing that I can play this on my wee VIC!

I wasn't around when this was first posted but I wish I was! It'd be nice to hear the example SIDs. It's a shame that development seems to have stopped on this.

Theoretically, would it ever be possible to have this quality of tune in a game or is the VIC already pushed to her limits? Sorry for my ignorance...

Mike · Post by **Mike** » Thu Feb 05, 2009 8:08 am

There's an NMI running at 6 kHz to synthesize the waveform in real time. Furthermore the IRQ (at lower priority) executes the player main loop. On any free cycles, when the VIC is not executing either NMI or IRQ, it runs a pseudo random generator to feed the noise wave form.

So, the VIC is exactly running at the limit.

Of course, screen display still works, so the SID emulator could be used to play a tune at the title screen of a game, for example.

Michael

orion70 · Post by **orion70** » Thu Feb 05, 2009 8:56 am

Mike wrote:I recently ported Cybernoid II to SID Vicious.

I can't download it

. Maybe I should be signed in?

Mike · Post by **Mike** » Thu Feb 05, 2009 12:46 pm

Signing in shouldn't be necessary. The file is in my public Skydrive directory, I can access it even when I'm not logged in.

Anyway, e-mail w/ attachment sent.

Greetings,

Michael

Pedro Lambrini · Post by **Pedro Lambrini** » Thu Feb 05, 2009 1:15 pm

I kinda figured the VIC was pushed to the max but you can only hope!

As for your dl site; it's in English for me so I presume it uses your IP address.

Mike · Post by **Mike** » Thu Feb 05, 2009 1:19 pm

I quickly deleted the question when I found out I could change the language to English in the options menu. Then I changed it back to German again ... could you try again, if it's still in English for you?

Pedro Lambrini · Post by **Pedro Lambrini** » Thu Feb 05, 2009 1:24 pm

Yup, still English.

Vic20-Ian · Post by **Vic20-Ian** » Sun Feb 22, 2009 11:45 am

This is awesome.

any chance of converting Parallax music onto the Vic, I love that tune

Mike · Post by **Mike** » Sun Feb 22, 2009 12:49 pm

Hi,

Which of these Parallax tunes do you mean?

Michael

Pedro Lambrini · Post by **Pedro Lambrini** » Sun Feb 22, 2009 1:00 pm

I'd assume the Martin Galway original. It's the original (apart from the fact he ripped off Jean Michel Jarre!) and best. Eleven minutes of aural glory!

Thinking of converting it, Mike?

PS: Hiya Ian! Loving Myriad - a real gem. Can't get Star Defence working on the uIEC though...

Vic20-Ian · Post by **Vic20-Ian** » Sun Feb 22, 2009 1:44 pm

The original from the game please. would love to compare how that sounds.

Gary_Leeds · Post by **Gary_Leeds** » Sun Feb 22, 2009 2:21 pm

What would be the best way of converting other songs? Would the playsid file with all the header info stripped out and the writes to the sid chip changed be the best way to do it?