Denial

Nice! Thank you!

Yes, the "impossibilator 3" is a great example

Hi,

It seems the VIC-II in the C64 has some very nice bugs that enables it to do more than it actually should be capable off... I'm thinking about opening the borders etc... Do we know of similar quirks for the 6560/6561 that have been used in a demo effect?

Cheers,
Johan

Nice trick! The sample playback itself is handled by the volume register I assume? While this trick tries to make the average sound output as high as possible on average?

Hi!

I have one that I never got to work.. a pity. I'm interested in buying one from you though I already have a dark casing to go with it.

Cheers,
Johan

Name: RUN FROM THE ZOMBIES Author: Johan Van den Brande Genre: Game - Endless runner Code: Machine Language Requirements: VIC-20 + 3K / VIC-20 + 16K License: Commercial Availability: Available for download and purchase on cassette at https://nanoflite.itch.io/run-from-the-zombies Description: An en...

All the hard work was done by Daniel Kahlin, who wrote the tracker. But yes, the tracker has 4 channels, one for each VIC sound channel. I just ported it to be compatible with the ca65 assembler.

Hi,

For an upcoming game, I ported the player of victracker to ca65.

* http://www.kahlin.net/daniel/victracker/
* https://github.com/nanoflite/victracker

I just wanted to point this out, maybe someone can also make us of this...

Cheers,
Johan

That's true. The memory layout comes from the fact that I wrote the game for the VIC20+3K... although it started out as a game for the unexpanded VIC and because I was not yet very familiar with the VIC20 memory layout when I started this project. So I included the assets into the program and the pr...

Expanded VIC20 (16K) configuration - take 2 Found the solution (thanks to https://github.com/cc65/cc65/issues/1276) FEATURES { STARTADDRESS: default = $11FF; } MEMORY { ZP: start = $0000, size = $0100, type = rw; RAM0: start = $0400, size = $0C00, type = rw; RAM: start = $11FF, size = $4E01, type =...

Hi, I'm trying to port a game I made for the VIC20+3K to a VIC20+16K. However, I can't figure out how to let the linker generate a program that fits the memory layout of the VIC20+16k. I put together a small repo explaining the problem I have... https://github.com/nanoflite/vic20-16k Here's the READ...

The demo "No Pets Allowed" makes use of another technique. The screen size is reduced and the characters are only partially displayed. By choosing the right characters, you can make a bitmap image. Ah, I will need to read up on the DMA technique then, but I doubt if it is applicable to the...

It is rev. 0.9 of the board (http://www.sinchai.de/index.php?main_page=page&id=5). I double checked polarities of the components and verified pin orientation of the ICs. What happens is that the sd2iec LED flickers, but when trying to access the SD card, nothing happens. I also see the 'normal' ...

Nice... really nice! I think I understand the trick being used in the unconnected space graphics mode. Basically, the VIC reads pixel data from the data bus and with some tricks you can align the VIC reading the databus with the operand of the instruction, not the opcode. With some self modifying co...

I assembled a 0.9 version and cannot get it to work. I really would like to get it going as I'm developing some retro games for the C64, VIC 20 and PET 4032. It looks as if the firmware is not in the Atmel and / or CPLD. Has somebody else also struggled to get it to work?

Cheers,
Johan