#

b	block a socket
c	display wires attached to chip
d	delete placement
f	display current file name
h	make placement hard
i	improve placement
l	list  chip status
m	move a chip
p	initial placement
q	quit
r	redraw the picture
s	make placement soft
t	print total wire length
u	count unplaced chips
w	draw wires
=	set drawing style
!	unix
>	write file
?x	more info about command x
#>
>[filename]	write placement file

		Placement data in core remains unchanged.
		If no filename is given the default is used.
		If a filename is given it becomes the default
		for subsequent '>' commands.
#b
b		Block the socket pointed at by cross-hairs.

		Chips cannot be placed in blocked sockets.
		Use 'd' command to unblock a socket.
#c
c		Display the wires attached to the chip specified.
#d
d		Delete the placement for chip pointed at.

		If the cursor is placed over a blocked socket
		that socket becomes unblocked.

/chipname/ d	Delete the placement for named chip.

/*/ d		Delete placement of all chips.

#f
f		Print the file name used as default by '>'.
#h
h		Set HARD status for placement of chip pointed at.

/chipname/ h	Set HARD status for placement of named chip.

/*/ h		Set HARD status for all chips.

		Automatic placement routines will not move a chip
		which has a HARD placement status.
#i
i		Make iterative improvement on current placement.

		At most 10 scans of the board will be made.

number i	Make iterative improvement on current placement
		making at most the indicated number of board scans.

		The iteration will be over all chips that have
		a SOFT placement status.   Chips not already placed
		on the board will not be considered.
		The automatic improvement algorithm is not
		guaranteed to converge but if it does reach
		a stable point where no change is made in
		one complete board scan the iteration will
		stop.   The total wire length is displayed
		after each board scan.
#l
l		List information about chips.


/chipname/ l	List information about named chip.

		The status information includes the letter 'U'
		for an unplaced chip, 'S' for a SOFT placed chip
		and 'H' for a HARD placed chip.   An '#' marks
		a chip that the automatic placement routines
		were unable to place on the board.
#m
m		Move the chip from the position currently
		indicated by the cross-hairs to the new
		position indicated when a space character
		is typed.

/chipname/ m	Move named chip to position indicated
		by the cross-hairs.
#p
p		Assign positions to currently unplaced chips.

number p	Assign positions to at most the indicated number
		of currently unplaced chips.

/chipname/ p	Assign a position to the named chip.

		After placement the chips will have SOFT placement
		status so that the 'i' command can be used to
		attempt an improvement.
#s
s		Set SOFT status for placement of chip pointed at.

/chipname/ s	Set SOFT status for placement of named chip.

/*/ s		Set SOFT status for all chips.

		Automatic placement routines will be free to
		move a chip which has a SOFT placement status.
#t
t		Print total wire length.
#u
u		Print number of placed and unplaced chips.
#w
w		Draw airline map of routes followed by signals
		attached to chip pointed at.

/signal/ w	Draw airline map of route followed by named signal.
#=
=		Set drawing style.

		=t	chip types displayed
		=n	chip names displayed
#
