Denial

Good work, Nice!

On some tape drives, there is an extra all metal ground cable hanging lose. I remember a guy taking that cable and dragging it over the user port until his c64 was reset. :lol: Yes, that's what I used too! Not that I dragged it over all pins of the user port, but I just hit the reset pin with the c...

The problem is that the programs that run in such huge memory, must be specifically written for them . Unless you use the RAM as a RAM disk for switching in parts of your program or data when needed. That way you could write a program that runs on original hardware (albeit slower) and benefit from ...

I disabled the process with a 37166, 128. What is that for? I've never heard of it. Normally before you alter the interrupts you do a SEI and after you are done you do a CLI. You can always disable interrupts at its source - one of the VIAs. That's why you can also disable NMIs. 37166 is the IER (i...

Are my eyes deceiving me or do you manage to mix the colours to get new shades? I'd like to download that program! Is it available somewhere? I was trying to mix the colors by switching between two colorsets on every frame, but it it only looks good on the picture. In reality the screen is flickeri...

Kweepa wrote:3. A grey in the palette (maybe the C64 palette?)

The Vic-20 is "your friendly color computer", therefore it offers the rainbow colors red-orange-yellow-green-cyan-blue-purple in dark and bright. See here.

I would not change that.

@Jeff: Bomberman would be great. Unfortunately it is probably slightly more effort than the simple game I wrote for the demo. @Pedro: Combat looks nice and doable for the Vic-20. Something similar to the plane fight exists for the VIC and was one of my favourite games back then (Of course, the secon...

Basically, the 2400 baud limitation is the kernal, 38k speed comes from software bit-banging the user port. I've seen this done on the 64 so I assume the same could be done on the Vic. As with the IEC-port, Commodore intended to use the shift register of the 6522 for transmission. Unfortunately, th...

I use Eclipse+WUDSN IDE and ca65/ld65 for ASM cross-development.

According to their homepage, WUSDN IDE now also supports running ca65 directly, but I did not check it yet, because I use GNU make to run the assembler&linker. WUDSN IDE also supports DASM & XASM.

Edit: typo.

I don't know about this Mary Beth Kraus, but the Vic-20 was my first computer and for almost a decade the only one.

Witzo wrote:Reminds me of a friend who made an eight-joystick box just like yours for the Amiga, back in about 1990.

The 8-player-box works for the Amiga too. There is another cable with a plug for the printer port of the Amiga...

Here is a short video from the meeting. Unfortunately, the video is a bit shaky. I did not film myself, but I also lack a steady hand

1) How did you know to chose 11 for "LE"? Or how did you know the only 12 memory positions would be taken up? That (11) should be the size of your example program. 2) Is there a Data Maker that you might recommend? There should be one on zimmers.net, but I usually go with buzbards method ...

Wilson wrote:edit: I should note that you can relocate SJLoad to $0400, but that doesn't solve programs that use 35K of expansion RAM.

Is there really a program for the Vic-20 that needs 35K RAM?

In BASIC you write something like: 10 SY=828:LE=11 20 FORI=0TOLE 30 READ A 40 POKE SY+I, A 50 NEXT 60 SYS 828 70 DATA <here come the bytes from 828 to 839 in your case> For a small program like in your example you could just PEEK the values for line 70 from memory after loading the prg, but for bigg...