status.i2.v = gsaddr(row.i2.r, column.i2.r, node.i2.r, house.i2.r, 
			     module_type.i2.r, changed.l2.r)

	This routine services a set of three GAS module selection fields
	on the TV window.  It converts user-legible GAS addresses (node,
	house, module type) to numeric codes suitable for internal
	manipulation.  If an error is encountered, the affected value is
	set to zero and the erroneous input is highlighted.  This routine
	must be preceded by a call to gsadr1.

	row, column	current cursor position (passed to GSADDR)
	node		decoded node (returned to called)
	house		house code (returned to caller)
	module_type	module type (returned to caller)
	changed		FORTRAN_TRUE if the user has in fact interrupted in
			one of the three fields, causing a new address
			to be decoded. (returned to caller)

	This function returns status values as follows:

	0			success
	-1			invalid node
	-2			invalid node
	-3			invalid module

	This function requires the following include files:


	Related functions:

	gsadr1, gsadr2