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From: R_Tim_Coslet@cup.portal.com
Newsgroups: comp.arch
Subject: Re: 1620 Opcode Selection
Message-ID: <34880@cup.portal.com>
Date: 15 Oct 90 07:03:56 GMT
References: <270CB430.21156@ics.uci.edu>
  <GOTTLIEB.90Oct5150853@allan.ultra.nyu.edu> <34734@cup.portal.com>
  <34839@cup.portal.com>
Organization: The Portal System (TM)
Lines: 15

>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).
Well, you have been misinformed!
+ character was 10 and - character was 20.

The 21 (add opcode) was a / character and 23 (mul opcode) was , character.
The 22 (sub opcode) doesn't correspond to any character.

I have the book right infront of me.......

                                        R. Tim Coslet

Usenet: R_Tim_Coslet@cup.portal.com
BIX:    r.tim_coslet