12/8/74  JONL & GLS 

Remember, BIBOP LISP is now the standard system LISP!
  [As of version number 958].

LISTARRAY has been extended to be an LSUBR.  an optional second 
  argument puts a bound on the number of elements to LISTIFY.
  For example, (LISTARRAY ary 5) lists only the first five elements
  of ary;  while (LISTARRAY ary), as before, lists all elements. 
  note that (LISTARRAY ary (APPLY 'TIMES (CDR (ARRAYDIMS ary))))
  also lists all elements.

MAKOBLIST, MAKREADTABLE, and BLTARRAY have been flushed.  If you 
  used them before, you can substitute calls as in the table below:
 
    FOR THIS CODE		  USE THIS INSTEAD

  (BLTARRAY x y)		(FILLARRAY Y X)
				  ;note reversal of args
  (MAKREADTABLE x)		(*ARRAY x 'READTABLE)
	    x not T or NIL
  (MAKREADTABLE t-or-nil)	(*ARRAY (GENSYM) 'READTABLE t-or-nil)

  (MAKOBLIST x)			(*ARRAY x 'OBARRAY)
	  x not NIL
  (MAKOBLIST NIL)		(LISTARRAY 
				 OBARRAY 
				 (- (CADR (ARRAYDIMS 'OBARRAY)) 129.))

Note that FILLARRAY is consistent in that it always transfers
  the contents of its second arg into the first, and returns
  the first (an array).  Note too that this means that when
  replacing a BLTARRAY by a FILLARRAY, you must reverse the args.


SYMEVAL lives!  If you know that you are evaluating an atomic symbol,
  it will be faster to use SYMEVAL rather than the general-purpose 
  EVAL.  In particular, as soon as BIBOP LISP becomes the settled 
  standard, SYMEVAL will compile optimally into two instructions.

In *RSET mode, all car-cdr calls are checked at each level to see 
  that CAR or CDR is applied only to proper data.  This checking is 
  not done by compiled code [which usually open-codes car-cdr ings]
  [this is not really true, because compiled code calls functions
  like CDDDDR, even if the user does not explicitly use them],
  nor when *RSET = NIL.  CAR and CDR are variables which control 
  the checking as follows:
		LIST		can hack only lists
		NIL		can hack lists and NIL
		SYMBOL		can hack lists, NIL, and symbols
		T		can hack anything.
  When in *RSET mode, the value of CDR controls the permissible
  operations for the function CDR, and the value of CAR controls 
  the permissible operations for the function CAR.