Difference between revisions of "Amstrad Magnum Phaser"
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Image:NoPicture.gif|Inside of Interface/Gun showing the Trigger Button logic and Expansion Port pins (are there REALLY only 4 pins connected?) | Image:NoPicture.gif|Inside of Interface/Gun showing the Trigger Button logic and Expansion Port pins (are there REALLY only 4 pins connected?) | ||
Revision as of 14:02, 15 June 2013
The Magnum Light Phaser was released later on in the Amstrads' life, and retailed for £24.99 in the UK.
It came supplied with a cassette and a disk, both containing six games.
464 version plugs into FLOPPY DISC socket, whereas 6128 plugs into the EXPANSION socket.
The main reason to buy this gun was for the excellent Amstrad conversion of Operation Wolf. Playing this with a light gun on your Arnold was the arcade experience people relished but rarely got back in the 80's.
The other supplied games were fun for a while, but by far the high point was Operation Wolf.
Quite irritating is the fact that each time you shoot, the whole screen has to flash on and off...
Technical
Connects to expansion port 50pin edge connector. Reportedly it uses only 4 pins: VCC, GND, LPEN, D7. Uh, that is, without decoding any address lines or /IORQ lines?
Trigger Button ---> Request via output to Port FBFEh, then check CRTC input Light Sensor ---> CRTC Light Pen Input
To read the Trigger button (to be done during vblank):
Port[BCxxh]=11h ;select CRTC register 11h old=Port[BFxxh] ;-get old value Port[FBFEh]=7Fh ;\force an edge on the lpen input Port[FBFEh]=80h ;/(depending on whether button is pressed or not) new=Port[BFxxh] ;-get new value if old=new then ... else ...
Supported Games
Mastertronic released some more games with Magnum Light Phaser support, but they were mostly budget-type Spectrum ports.
All five releases were also available on the Megaplay 2 compilation.
Disc
Pictures
Manuals
- Magnum Light Phaser Games Instructions
- Magnum Light Phaser Games Instructions
- Magnum Light Phaser Instructions
Download
- Magnum Light Phaser Games Disc (English) [1] (zipped .DSK files)