Here comes my Codef remake of the overscan screen by The Exceptions, released in the Amiga Demo (Atari ST, 1988)

It was the first time the right border was removed on the ST.

The Exceptions finished this demo on Saturday, March 5th 1988, during their visit to their friends of ST NEWS in Holland. Richard Karsmakers, who wrote the scrolltext, sums up its making as “a busy night, a usergroup meeting at Eindhoven, viel Schnaps, pizzas, coke (the liquid kind)”, and ST NEWS spoke of a world record of 20 hours of non-stop programming.

The demo takes its name from its music: seven pieces of Amiga music by Karsten Obarski, such as “Amegas” and “Rallyemaster”, converted by Mad Max and played as four-voice digital sound on the ST. But the scrolltext opens with the other news, “the new and revolutionary overscan-screen - a screen with no lower and no right (!!) border”, and already wonders what comes next: “maybe no left border next time? Or maybe no border at all in the demo thereafter?” Both happened before the end of the year.

How it works

To open the right border, the screen frequency has to be switched at the exact same moment on every line, so the code must run in perfect sync with the electron beam.

How the right border is opened is explained on the Atari ST Fullscreen demos history page.

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