Artifact a3b66f9193050334f483674f8f90f86d8b00cdaf94f9fe6edb56fb9a56f16809:


TopLoop(TopLoopRead!*, TopLoopPrint!*, TopLoopEval!*, TopLoopName!*,
----------------------------------------------------------------
		       WelcomeBanner):NIL
                       ------------------

This function is called to establish a new TopLoop (currently for
Standard LISP, RLISP, and BREAK).

It prints the WelcomeBanner, and then invokes a "READ-EVAL-PRINT" loop,
using the given functions. TopLoop provides a standard History and
timing mechanism, retaining on a list (HistoryList!*) the input
and output as a list of pairs.

TopLoop Function         Purpose
(HIST)                   Display full history.
(HIST n)                 Display history from n to present.
(HIST -n)		 Display last n entries.
(HIST n m)               Display history from n to m.
(INP n)                  Return N'th input at this level.
(REDO n)                 Revaluate N'th input.
(ANS n)                  Return N'th result.
(SETQ !*Time T)          Causes evaluation time to be printed for each command.


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