RFC494 - Availability of MIX and MIXAL in the Network

Network Working Group D. Walden

Request for Comments: 494 BBN-NET

NIC: 15359 20 April 1973

References: RFCs 473, 485

Availability of MIX and MIXAL in the Network

In RFC473 I requested information on the existence of assemblers and

interpreters for Knuth's hypothetical MIX computer. Following is a

summary of the responses to my earlier RFC.

First the rumors: (1) There is rumored to be a MIX interpreter

available on the University of Utah PDP-10, but not assembler; and

(2) There is rumored to be a MIX interpreter available on the SU-AI

PDP-10.

Now the facts:

A fairly well debugged and documented MIXAL assembler exists for the

UCSB 360/75. A partially debugged MIX interpreter also exists. See

RFC485 for additional information.

Box MIX and MIXAL are available on the UCSD B6700; although,

according to Ken Bowles, they are not currently being handled as

fully supported products, and there may be some remaining bugs in the

systems. However, MIX and MIXAL are available for network users, and

Ken says they will be happy to receive notification of any errors

found in the MIX and MIXAL and will attempt to get corrections made

in due course. Contact Ken Bowles at UCSD for further information.

MIX and an assembler for MIX are available for network use on the

UCLA 360/91. These systems have had considerable use, and they are

documented. Contact Bob Braden at CCN for further information.

Finally: The Computer Science Center at Stanford University

apparently has available a standard package for eXPorting the MIX

systems to 360s and 370s.

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