Re: 264 Series and their chips

From: Hársfalvi Levente <>
Date: Sun, 14 Aug 2011 21:01:11 +0200
Message-ID: <>
On 2011-08-14 19:44, Gerrit Heitsch wrote:

> BTW: In a PAL 264 system, you can push the CPU to 2.2MHz by setting TED
> to 'display off' and 'NTSC'. You don't get usable video output, but
> double speed compared to normal. Never crashed on me, but I always had
> heatsinks on TED and CPU back then.

Never seen a 264 series machine to crash on that one... it's been a
pretty widely known trick amongst democoders. Back then, that trick was
frequently used for speeding up packers (ie. cruel crunch that usually
ran for several hours before either crashing or producing a packed
file). Some demos utilized that to squeeze out more cycles of the CPU
(music demos were typical examples, where you could achieve higher
sampling rate). Few years ago, a couple of people (independently of each
other) finally came up with routines providing 400, or 416 pixels of
horizontal resolution (although with great drawbacks) by using this trick.

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Received on 2011-08-14 20:00:10

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