From sentto-2719433-9-980520860-gtoal=vt.com@returns.onelist.com Fri Jan 26 08:21:35 2001 Received: from c9.egroups.com (c9.egroups.com [208.50.99.230]) by admin.vt.com (8.8.5/8.7.3) with SMTP id IAA10234 for ; Fri, 26 Jan 2001 08:21:34 -0600 (CST) X-eGroups-Return: sentto-2719433-9-980520860-gtoal=vt.com@returns.onelist.com Received: from [10.1.4.55] by c9.egroups.com with NNFMP; 26 Jan 2001 14:54:23 -0000 X-Sender: gtoal@vt.com X-Apparently-To: edinburgh-computer-history@yahoogroups.com Received: (EGP: mail-7_0_2_1); 26 Jan 2001 14:54:05 -0000 Received: (qmail 33894 invoked from network); 26 Jan 2001 14:52:48 -0000 Received: from unknown (10.1.10.26) by l9.egroups.com with QMQP; 26 Jan 2001 14:52:48 -0000 Received: from unknown (HELO hk.egroups.com) (10.1.10.43) by mta1 with SMTP; 26 Jan 2001 14:52:47 -0000 X-eGroups-Return: gtoal@vt.com Received: from [10.1.10.108] by hk.egroups.com with NNFMP; 26 Jan 2001 14:52:41 -0000 To: edinburgh-computer-history@yahoogroups.com Message-ID: <94s2vn+s8tm@eGroups.com> In-Reply-To: User-Agent: eGroups-EW/0.82 X-Mailer: eGroups Message Poster X-Originating-IP: 206.104.172.1 From: gtoal@vt.com MIME-Version: 1.0 Mailing-List: list edinburgh-computer-history@yahoogroups.com; contact edinburgh-computer-history-owner@yahoogroups.com Delivered-To: mailing list edinburgh-computer-history@yahoogroups.com Precedence: bulk List-Unsubscribe: Date: Fri, 26 Jan 2001 14:52:39 -0000 Reply-To: edinburgh-computer-history@yahoogroups.com Subject: [ed-comp-hist] Re: Other Compilers Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Status: RO --- In edinburgh-computer-history@y..., Harry Whitfield wrote: > One of the first compilers written in Buccleuch Place was a music > compiler for the new PDP8 by David Rees. If I remember correctly, > this compiled up to four voices into an intermediate code, which was > then interpreted and played by pulsing the loudspeaker of the PDP8. > I think I wrote the interpreter/player. > > At the time, we made some tape recordings of our efforts. David still has this. I think he has it on paper tape, and if anyone knows of a working paper tape system still at Edinburgh where we can read in any old tapes we find, please let us know. This reminds me that Fred King also wrote a system just like this for the M6809 lab kits; in fact I think I remember that it was a deliberate clone of the PDP8 system. I do remember seeing this myself (I might even have worked on it a little). It had an ascii input language and included loops etc. Looked something like (F#GGAB)4 or whatever makes sense to those musically inclined. (Which counts me out) If we can save either of these programs, we should also save the input music files. Does anyone have Fred's email? I've lost touch with him. Graham PS I see the buyout of eGroups by Yahoo has finally made it into the web pages at last. Hope it wasn't too inconvenient for new members. To unsubscribe from this group, send an email to: edinburgh-computer-history-unsubscribe@egroups.com