JSYS calls under twenex maclisp

[Pat O'Donnell <PAO at MIT-EECS>]

I have a package which was inspired by the JSYS function mentioned by
JonL.  It takes the same arguments, except that it does some
conversion between Maclisp data types and Twenex data types.  In
particular, symbols get converted to ASCIZ strings, and jfns are
retrieved from file objects.  Cons's are interpreted as left-half and
right-half.  Further, the <ac-number-of-result> argument, if NIL will
return a list of the first four accumulators, and a variable is set to
the number of instructions skiped (plus 1).  I am planning (someday)
to supplement it to accept more accumulators, if necessary.

If anyone is interested in this package, I will make it available.
		- Pat