This directory contains software useful with the RT-11 emulator package.
IMPORTANT NOTE:  This software is provided for your convenience.  HCR
makes NO CHARGE for any software in this directory.  The modified UNIX
software is covered by your license agreement with Western Electric, just
as the original is.  HCR supplies only the modifications.
Other software and modifications were obtained from the sources indicated.
HCR TAKES NO RESPONSIBILITY for their code.  (We will accept bug reports,
but we may not act on them.)

ed.c is a version of the UNIX text editor "ed".  It contains a number of
features, which are described in the document "edupdate.1".  In particular,
it looks at its zeroth arg, and if it starts with the letter 'r', then
it automatically enables some options which make it useful as an RT-11
text editor.  Compile as follows:
	cc -n -s -O ed.c
	mv a.out /bin/ed
	ln /bin/ed /bin/rted
If you do not wish to replace your standard system editor, then simply
install the binary in /bin/rted, without touching /bin/ed.
This editor was originally modified at the University of Toronto.  The
"RT-11" features were added by HCR.

rtpip.c is a program which is used to access an RT-11 file system, on
disk or dectape.  Compile:
	cc -s -O rtpip.c
	mv a.out /usr/bin/rtpip
It is described in "rtpip.6".  It has /dev/rk1 wired in as a disk name, but
this could easily be changed.
NOTE:  This program is also available from the UNIX User's Group.

The directory "unix" contains the files which need to be changed to install
the "trapcatch" system call.  The changed sections are marked by comments
which contain the characters "RT11".  Since there are so many different
versions of UNIX out in the field, we suggest that you DO NOT simply
install these files, but rather look at the changes and make the appropriate
modifications in your own source files.  Documentation in "trapcatch.2".
The files are otherwise pretty much original 6th edition UNIX versions.

Mike Tilson
Human Computing Resources Corp.
10 St. Mary Street
Toronto, Ontario, Canada  M4Y 1P9
416-922-1937
