simh simulation speed

From: Ronald Wayne <>
Date: Tue Sep 28 13:39:50 2004

On Mon, 27 Sep 2004 13:23:07 -0700 (PDT), Zane H. Healy
<> wrote:
> This is typical for most emulators, SIMH runs as fast as it can. For a lot
> of things, this is the best behavior, but for software that somehow ties to
> the speed of the computer it is running on, it's a bad thing.

It is the best behaviour? I've seen a couple of emulators which
regulate speed, because it is sometimes necessary for games and
frequently necessary for demos. An additional advantage is that it
reduces the rate at which electricity is converted into heat (ie. it
uses less of the host machine's CPU), so my batteries last longer and
my hands are less toasty. :) And I think it is fair to say that an
emulator which runs at two or three times the original machine's speed
will usually be fast enough. (If speed was really *that* important
you wouldn't be using an emulator.)
Received on Tue Sep 28 2004 - 13:39:50 BST

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