Added files and directories that support the MDL 55 runtime.

doc/mudbug/debugr.help

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+MUDDLE Debugger ---- command summary
+
+<USE "DEBUGR"> loads the Debugger
+
+<DEBUG> makes the Debugger ready.
+     use  to _____Begin one-stepping.
+         use  to do ____Next step of the computation.
+         use  to step ____Over completely the next computation,
+		then stop and continue one-stepping.
+         use 
 to evaluate the _________Arguments of the current object
+		then stop and continue one-stepping through the body.
+         use  to contine evaluation until you ______Return to this point.
+     use  to ___End one-stepping.
+use  to ____Quit one-stepping and make the Debugger unready (off).
+
+<HELP> prints this command summary.
+
+<REPAIR> attempts to repair any Debugger errors you might invoke.

doc/mudbug/edit.nhelp

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+
+____NAME	____ARGS	_______MEANING
+
+General commands
+
+?	none	type out short command summary
+??	none	type out this command summary
+O	1,any	Open object or the value of an atom
+OT	none	Open This -- the atom at the cursor
+Q	none	Quit -- return to MUDDLE
+QR	1,FIX	Quit and Retry -- leave Edit and retry a frame
+V	none	toggle Verbosity
+
+Movement commands
+
+L	1,FIX	move Left arg objects
+R	1,FIX	move Right arg objects
+U	1,FIX	move Up arg levels
+D	none	move Down one level
+B	none	move to Back of object
+F	none	move to Front of object
+UR	1,FIX	move Up arg objects and to the Right
+DL	1,FIX	move Down arg objects and to the Left
+UT	none	Up Top -- go to the place you were just after O
+
+Editing commands
+
+I	any,any	Insert args to the right of cursor
+I:	2	make next (arg 2) objects into a TYPE (arg 1)
+I*	2	Imbed command:  replace all occurances of arg 1 
+		 (ATOM with default *) in arg 2 with objects to right of cursor
+X	1,ATOM	set the atom to the object to right of cursor
+SW	none	swaps object to right of cursor with second to right
+G	any,any	Get evaluation of args, insert to right of cursor
+C	1,ANY	Change the next object to arg
+C:	1,TYPE	Change the type of the next object to arg
+K	1,FIX	Kill (delete) the next arg objects
+K:	none	Kill (remove) the "brackets" around the next object
+
+Search Commands
+
+S (SR)	1,any	Search (Right) until match (=?) is found for arg
+SL	1,any	Search Left as above
+
+Debugging commands
+
+BK	any,any	set BreaKpoint at next object;
+		 if first arg evaluates to FALSE, don't break;
+		 rest of args are printed out at break
+BA	any,any Break After; like BK but break happens after object evals
+KB	none	Kill all Breakpoints in open object
+KT	none	Kill This breakpoint in the object to the right of cursor
+
+UM		make monitor commands available
+RM	any,any put read monitor on the LVAL of the ATOM given as the
+		 first arg; other args are optional as to BK
+WM	any,any put write monitor on the LVAL of the ATOM
+RW	any,any put read/write monitor on the LVAL of the ATOM
+
+Printing commands
+
+P	none	PPRINT the next object
+PU	none	PPRINT the next Upper level
+PT	none	PPRINT the whole object open
+
+Macro Commands
+
+M 	1,STRING execute the string as if typed to EDIT
+IT (DO) 2	ITerate the execute string (arg 1) arg 2 times
+
+Cursor commands
+
+UC		make cursor commands available
+CU	1,ATOM	set atom to CUrrent cursor position
+GO	1,CURSOR GO to the specified cursor position
+PC	none	Print Cursor positions in the current object
+PA	none	Print All cursor positions in the toplevel object
+KC	1,ATOM	Kill the Cursor assigned to the atom
+
+^F returns you to EDIT from a higher level.
+The atom * may be used as a FIX argument whose value is the largest
+legal value for that command.