Path: utzoo!attcan!uunet!wuarchive!usc!apple!portal!cup.portal.com!mmm
From: mmm@cup.portal.com (Mark Robert Thorson)
Newsgroups: comp.arch
Subject: Re: 1620 Opcode Selection
Message-ID: <34839@cup.portal.com>
Date: 14 Oct 90 03:34:30 GMT
References: <270CB430.21156@ics.uci.edu>
  <GOTTLIEB.90Oct5150853@allan.ultra.nyu.edu> <34734@cup.portal.com>
Organization: The Portal System (TM)
Lines: 3

I've been informed that the opcodes for add and subtract on the 1620
correspond to the character codes for + and -.  I was probably thinking of
the 1401 (or whichever model had an assembler called AUTOCODER).