Well, for this first sunday demo show we have 3 demos, the first for the C64, the second for the ZX Spectrum and the third for the Atari Falcon:

Sphaeristerium by Horizon, Instinct & Triad 1st Place C64 Demo Competition at Little Computer People 2005 (Link)



We are Spectrum by Ate bit, 3rd Place ZX Demo at Forever 2006 (Link)



Untitled by Avena and Digital chaos, 3rd place at Fried Bits 3

Last weekend I finally decided to replace the faulty SID chip on my first C-64, which developed a problem with the filter on voice 1. When the filter is activated, that voice pitch drop a full octave down.
The only available SID chip that I had was soldered on a C-64 I use to canibalize for parts, so I picked the soldering gun, the de-solder pump, and in a couple minutes the SID was free, it was easier than I thought.

Luckily, the faulty SID that I wanted to replace is socketed, so I replace it with the 'new' one. Turned the machine on and loaded the demo Dawnfall, it sounded weird, but I didn't know why. Then I loaded the Stereo Sidplayer, the music in the presentation played correctly, the same with other .mus files, until I played one that used the filter on voice 1... this time the voice was completely muted
So... the original faulty SID is back in it's place.

First of all, as the title says: Happy 2007!!! to all my thousands of readers (hey, I can dream...)

This year it's the 25th anniversary of both the Commodore 64 and the Sinclair ZX Spectrum, and the 30th anniversary of the Commodore PET, Apple II and Tandy TRS-80 Model I.

Well, I finished this little piece of code back on November 27, but I wasn't sure about releasing it as is or use it in something bigger... but lets face it, this effect has been used too many times in demos and intros, so is not worth it.



Download C64 executable and source code: matrix1.zip

This is the start of the 3D models gallery, where I'll put only the little objects that I have modelled. Big or more complex objects or scenes will have it's own gallery as the Fan Racer on the previous entry.

The first objects are:
-A 5.25" Floppy Disk, modelled as part of the logo for the "First Old Computer Expo"
-A TO-220 Transistor or IC
-Three surface mounted IC's of 14, 16 and 20 pins

This was my first completed 3d model, finished back in May 2003.
It's done mainly in Truespace 1, and used Truespace 3SE only for some boolean operations. This plane is the 'Fan Racer' used by Macross character Hikaru Ichijio (Rick Hunter in Robotech) in the firsts episodes of the series.

This expo took place from May 15th to 20th of 2006 in the city of Trelew, Chubut, Argentina.
Update: More pictures here from the museum's oficial web site.

These are most of my old GeoPaint drawings, mostly made for highschool/university works.
Download D64 image containing the original files

Just before the blog went offline, I finished my first plasma for the C64, fully written in 6502 assembly language.
It's just a monochrome plasma, nothing fancy except that it's 'full' screen and double buffered to prevent any flickering.



Download .PRG and source code: mplasma.zip

Well, the site back online, but there is some glitches as you can see on the top of the page...
There is also some missing files, but I'm going to upload those later tonight.
Update: The scripting problems has been resolved, still some files left to upload....
Update2: Finally!!! Everything seems to be working fine and all the files have been uploaded. If you find anything wrong please leave a comment