(Last update 13th of Mai 2019)
All downloads can now be accessed directly at:
Current “official” firmware version is 1.17!
Link to current FAQ (v1.14): VecFever FAQ
Above also includes download to the SBT of:
- Asteroids emulator (Rev 1, Rev 2, Rev 4)
- Asteroids Deluxe emulator
- Lunar Lander emulator (updated)
- Battle Zone emulator
- Red Baron emulator
- Tempest emulator
- Vortex emulator
Welcome to Demon, the unreleased monochrome vector arcade game by Rock-Ola. This game was pretty near to being finished if not already done when Rock-Ola decided to leave the arcade business. An interesting game concept which was ambitious in 1982 for the by then seriously aged Cinematronics CCPU hardware. So in order to display more this game has a load balancing scheme for the graphics and a wide variety of things being drawn in alternate frames only, if the time runs out. Heads and bodies of drones, explosion dots, texts, even the boulders and the letters themselves of the upper score strings are dropped. Score 'sprites' are even always drawn in two steps, the '00' in one frame and the actual values in another. and the upper score strings are drawn every other letter per frame, if at all. This results in serious flickering and a quite strange way to draw at times,too. Not something the Vectrex likes at all..Still, for a CCPU game running on the Vectrex this was ideal: All I have to do is patch the load balancing and manage the sequence of drawing of objects to both stabilize the output and draw absolutely everything each frame. Audio was similarly well suited: Demon uses an audio board with three 8910 audio chips and a very similar 8912 is in the Vectrex. So I could grab the original audio data for once, only had to reverse engineer the audio board communication and output a pleasing soundscape with three instead of none sound channels. The global-per-chip noise and alternate amplitude control was a minor concern here since Demon uses both but again prioritization and a bit of hand holding of the sound effects did held and I am extremely pleased with the resulting soundscape. I absolutely loved the menacing background sounds of the demons.
(C) 2019 V0.8
Από την πλευρά του ήχου κάποια θυσία ήταν αναγκαίο να γίνει. Απουσιάζουν τα εφέ της ανθρώπινης φωνής με κάποια άλλα, όπως η γλυκιά φωνούλα του R2D2, να παραμένουν. Παίζοντας το παιχνίδι, το "αυτί" μας δεν πιάνει την διαφορά.Welcome to Star Wars, the colour vector arcade game by Atari. This game obviously is great because of the theme but is is also interesting by a technical viewpoint: Even though it uses another cpu, new mathbox, additional sound board and speech it still is clearly a child of my - all time favourite - Asteroids. The Basic setup: An 8bit CPU using a master interrupt handler - with several software design decisions hinging on this premise are identical. It is also very cleanly programmed, a real bonus and is definitely not always the case. Another unique feature of the game is that it deliberately draws bright vectors out of bounds of the screen when being hit to lighten up the entire screen. This works extremely well - and also on the vectrex. As you can see the amount of the vectors is a bit too high for the vectrex and the sound clearly out of its league - the original uses four pokeys and a speech chip - but I think the output for the vectrex is still enjoyable.