From: utzoo!decvax!cca!jfw@mit-ccc@sri-unix
Newsgroups: net.unix-wizards
Title: downloading to a pdp-11
Article-I.D.: sri-unix.4168
Posted: Wed Nov 17 22:46:41 1982
Received: Fri Nov 19 06:28:10 1982

Date: 14 Nov 1982 20:31:51-EST
We here have a PDP 11/10 which runs a graphics terminal system;  we have been
writing C programs on our 45, and compiling them and loading them on the 11/10.

The mechanism we use is quite simple:  we have a modified "cc" which loads the
standalone library and does #include's from a standalone include file directory.
To downline load the resulting binary, we use the console DL on the 11/10 and
a spare DL connected to the 11/45.  The 11/10 boot is about 38 words long,
with a similarly primitive program called "dload" on the 45.  The only clever
part of the whole arrangement is a program I wrote to translate optimized
C assembly output (containing MUL's, DIV's, ASHC's, and other Extended Instruction
Set features) into code the 11/10 with its poor little KE-11 can handle.

If you are interested in this primitive arrangement (which works quite well for
us), I will mail it to you.

John Woods
jfw@mit-ccc@mit-mc