Denial

From Czes Kosniowski's "Fun Mathematics on your Microcomputer", I typed a little program in VICE XVic emulator, unexpanded Vic-20. The program runs fine and it starts plotting the chosen predefined function in hi-res screen. But then it stops while still in hi-res mode so I can't read the ...

Did you expect a nice Christmas present from RetroMagazine? We got you and we're giving you one for New Year's Eve! Issue 19 of the magazine is out today, just in time to have a toast with all of you for 2020! It's still in Italian, but soon we'll be releasing a full English version in 2020! So stay...

Of course, that is quite normal. I always did the same thing with ML code for the 64. For some reasons I didn't consider the same situation for the Vic-20, where the RAM layout is a bit more complicated (and yes, I just downloaded the memory map you published in another topic here). All sorted out. ...

Adding a SYS call works but strangely not if the code starts at $033c. * = $1001 ; 10 SYS4128 byte $0B,$10,$0A,$00,$9E,$34,$31,$32,$38,$00,$00,$00 * = $1020 ; start 4128 ; * = $033c ; 828 tape buffer ; byte $0B,$10,$0A,$00,$9E,$38,$32,$38,$00,$00,$00 Changing the start to (for example) 4120 (as BASI...

Thanks, Mike. A simple NEW statement after loading the routine worked seamlessly. https://cloud.nablasolutions.ch/owncloud/index.php/s/BkuCotA6D6i70aV EDIT: Also as an exercise, I thought about implementing the counting of time elapsed by the routine directly in the machine code. It shouldn't be tha...

During my Vic-20 assembly experiments (unexpanded machine), I have put together a small program to dump the memory and provide a graphical representation of the bits of the different memory locations. This is a program that I initially wrote in BASIC, then for practice and learning purposes I rewrot...

A very nice job, LoadError. I too enjoyed the symbolic Italian keymap layout. Thanks for sharing it. Did you also complete the layout for the X64? That would also be useful when typing/working with C64 BASIC/Assembly listings. Thanks. EDIT: After looking out in my current version of VICE (3.2) I've ...

Boy, this is really faaast! :-) And I didn't even set the Warp mode. The lines were drawn at a speed that I actually didn't expect to see in a Vic-20 graphic screen. Thank you for the instructions, Mike. You make me also find out about the VirtualFS mode of VICE. So far I've always dealt with D64, P...

Very useful thread. I'm currently learning to write some code on the Vic-20 and I find the threads in this section so formative and time-saving. I could use the previous example of the graphic demo released in a D64 file. I've downloaded madness.zip but haven't found a way so far to run in XVIC (Vic...

Hi pixel,

sending you a PM in minutes.

Gran bella notizia! grazie.

This is just great! Thanks TNT. It's exactly what I was looking for. Thank you so much. A great reading.

Thanks for the easter egg. Didn't know about it. I agree with you that reverse-engineering the machine code would be too much trouble and would take a lot of time to find the algorithm used in the gameplay. I often wonder, since these games are now pretty old and, some may say, obsolete, if there's ...

I only meant that Italian users will be able to take advantage of lower shipping costs. I guess that the guy will sell to anyone.
Still waiting for the complete list... Will keep you updated.

Potrebbe essere interessante per gli amanti del Vic-20 il post che ho appena messo nella sezione Buy, Sell and Trade.

http://sleepingelephant.com/ipw-web/bul ... f=3&t=7476