Denial

This subroutine uses the pixel set command and test function of MINIGRAFIK . Additionally I guess the algorithm you posted produces a nice graphical effect while it is displaying the intermediate results. Any ideas? E At each subroutine add a sentence placed so as it executes just once each time th...

I remember reading a magazine, probably a Your Computer issue belonging to a friend. There was a recursive bitmap fill routine for the Spectrum which was something like 10 if not point(x,y) then plotx,y: x=x+1: gosub 10: x=x-2: gosub 10: x=x+1: y=y-1: gosub 10: y=y+2: gosub 10 20 return I was so imp...

I've been working on a (windows .NET) program to import a midi file and export part of it as data for the VIC 20 in the form of lines of code. Then I append them to the code of a kind of generic player program and finally I assemble it. The program lets you select 3 of the channels to be exported as...

I've been browsing the code samples for CC65 here https://github.com/cc65/wiki/wiki/Applications-written-in-C-or-C-with-assembler As a tutorial I've modified the 2048 puzzle game for the VIC 20. The original repository is here https://github.com/nanoflite/2048-cc65 . I guess I should request a branc...

Noel comments in the video that Blitzkrieg feels like a BASIC program and it is indeed a BASIC program. I think it is basically a copycat of Blitz although Minter is quoted as the author, maybe to increase sales. I own an original tape. I may have uploaded a photo of it or the code some time ago. An...

I got a Storeboard together with a VIC20 I bought from the UK on eBay a while ago. Moving the switches I was able to get +3k or +16k RAM configurations. I'm not into electronics, so I consider silly ideas such as to use the socket to test RAM chips or read EPROMs. Anyway thanks for providing the man...

Wow! That's much, much better! I'm pretty sure that my Sony 14" Trinitron CRT doesn't support s-video internally, so the cheap adaptor must be generating a composite signal, but somehow it does it a lot better than what I could do directly on the board of the VIC 20! I'd bet you have a 14"...

Name : Sidelsa Author : Javier Gonzalez Genre : Arcade game Code : ML Requirements : VIC-20 and 16k RAM expansion Description : A recreation of the 1st level of the 1981's spanish arcade game "Draco". It features a demo mode. https://youtu.be/5vYkcGLmBTw Instructions The arcade had 2 joys...

I have this issue with one of my VICs, loads from tape but not from disk (bad 7406 I understand).
Also somehow I saved a file into some kind of memory inside the SD2IEC instead of the SD card. I think it shows up when I load the directory with no SD card inserted.

I found this resource http://www.primrosebank.net/computers/pet/pet_docs.htm and there's some scanned books on the topic of PET programming, Programming The PET/CBM by Raeto West and some other.
I'm not interested in PET programming, but I wonder if they are good.

Thanks Mike, it's important to refloat these old threads, I've downloaded many things and read interesting posts from before I joined, but from time to time I come across another bunch of things.

Title: Nyan cat meme Author: Javier Gonzalez Released: 14th January 2021 Genre: Demo Code: Assembly Requirements: +8k Tested on VICE emulator in PAL and NTSC. It uses 26 columns, so I'm not sure how it fits real monitors, specially NTSC. Discuss: viewtopic.php?f=2&t=9995 https://youtu.be/9pbfXNn...

I coded the Nyan Cat meme for the VIC 20 +8k (I'll post the binary in the releases thread). It uses the stable raster split method discussed in some threads on this forum (notably the Pitfall port with has improved graphics). The animation has 12 frames but the color attributes barely change, which ...

srowe wrote: ↑Fri Nov 20, 2020 1:08 am

Vic20-Ian wrote: ↑Thu Nov 19, 2020 4:02 pm I purchased this from Ebay, would anyone be able to help me read the Eprom?

[Edit] here it is viewtopic.php?t=676&start=6

Thanks that thread is gold

Name : Oflain Author : Javier Gonzalez Genre : Game Code : ML Requirements : VIC-20 and 8k RAM expansion Description : One button jump game for the VIC 20, G's chrome Dino themed http://youtu.be/RY7heUkOMww Remarks: - It checks for NTSC machine to adjust speed parameters but I haven't bothered test...