		PIN - Procedure Interpreter
		===========================

 PIN  (PROCEDURE  INTERPRETER)  is a task 1/4 the size of the Indirect
 File  processor.  It  is  used  identically  to ...AT. to control the
 assembly  and  taskbuild  process during program development. It does
 not  recognize  the  special ...AT. commands. Rather, it only accepts
 one  line MCR type commands. If during the execution of any command a
 fatal  error  is encountered, PIN will cease execution of the command
 file  and  allow  the user to correct for the problem. A command line
 creating  an  error is displayed. By default, other command lines are
 not  displayed.  PIN  assumes  that the command file given to it will
 have  the  extension  .CMD.  However,  if  a  different  extension is
 explicitly  used,  PIN  will use that name in looking for the command
 file. 

 To use PIN type         PIN cmdfile
 where  cmdfile  is  a commandfile (default extension .CMD) containing
 ordinary MCR commands and, optionally, special PIN commands.

  PIN  has a number (very limited) of internal commands. Each internal
  command  (which is a part of the command file) is preceded by a $ in
  column 1. The commands are
	 	$DE	- delete the .CMD file on closing 
		$NODE	- do not delete the .PRC file on closing
		$TR	- print each command as it is executed
		$NOTR	- do not print each command.
		$CH cmdfile - chain to file 'cmdfile'
 
 Initially PIN starts out with NOTR & NODE.
