17 Jun
2005
17 Jun
'05
5:10 a.m.
Message: 2
Date: Thu, 16 Jun 2005 10:34:49 +0200
From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de>
Subject: Re: PDP-8s and -10s
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Message-ID: <20050616103449.0e33cb3f.jkunz at unixag-kl.fh-kl.de>
Content-Type: text/plain; charset=ISO-8859-1
On Thu, 16 Jun 2005 05:53:53 +0100
"Andy Holt" <andyh at andyh-rayleigh.freeserve.co.uk> wrote:
[CDC6600 in a FPGA]
My Xport 2.0 for Gameboy Advance programming has a programmable
FPGA with 150,000 gates. Doesn't seem to be uncommon
by today's standards.
See:
Gameboy Advantage for Non-Gaming Applicatiions
Turning a fun toy into a powerful tool
Dr. Dobb's Journal, May 2004.
Embedded Systems
http://www.ddj.com
Fred K8VDU
As the 6600 was entirely built with discrete
components, not chips,
and yet had to be physically relatively compact, I doubt if it had
much more than say 20,000-25,000 gates. Nowadays that isn't anywhere
near high end of the FPGA ranges.
I don't know how many gates, but the Book
"Design of a Computer CDC6600"
states on page 20: "the entire 6600 Computer contains approximately
400,000 transistors". It used "Direct-Coupled Transistor Logic" so there
where way less then 400,000 gates.
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/