Subject: Re: Running NetBSD on the Empeg
To: Ian Fry <Ian.Fry@sophos.com>
From: Neil A. Carson <carson@causality.com>
List: port-arm32
Date: 07/09/1999 18:35:24
On Fri, 9 Jul 1999, Ian Fry wrote:

> If the EMPEG player is using an SA1100, as the tech page says, then the MP3
> decoding is probably being done on the AMP (Advanced Media Processor), this
> is effectively a co-processor which can be loaded with it's own program and
> told to go away and do it's stuff independently of the main processor. I
> think that this is how Acorn had a machine decoding 2 full MPEG2 streams in
> real time with a software-only decoder around when the SA1100 was launched.

The chip with the AMP (*attached* media processor) is the SA-1500 which
isn't available in non-eval form yet. One could easily do MPEG audio on
that because of its single-precision vector FPU.

	Neil