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PHFIG(3)	      MBK PHYSICAL STRUCTURE DEFINITIONS	      PHFIG(3)

NAME
       phfig - mbk physical figure

DESCRIPTION
       The phfig is used to describe a hierarchical level of a symbolic	layout
       and may contain any of the legal	physical objects needed	for  a	layout
       but  a  phfig.  All coordinates are symbolic and	therefor put on	a vir-
       tual grid in booth x and	y directions.

       The declarations	needed to work on phfig	are available  in  the	header
       file "/labo/include/mph402.h", where '402' is the actual	mbk version.

       The following C structure supports the description of the layout	view :
	      typedef struct phfig {
		 struct	phfig	  *NEXT;
		 struct	chain	  *MODELCHAIN;
		 struct	phseg	  *PHSEG;
		 struct	phvia	  *PHVIA;
		 struct	phref	  *PHREF;
		 struct	phins	  *PHINS;
		 struct	phcon	  *PHCON;
		 char		  *NAME;
		 char		  MODE;
		 long		  XAB1,	YAB1, XAB2, YAB2;
		 struct	ptype	  *USER;
	      }	phfig_list;

       NEXT		   Pointer to the next phfig present in	ram.

       NAME		   Name	 of  the  figure.  It  identifies a figure (or
			   model), so it should	be unique in order to warranty
			   consistency	of cells libraries. In order to	ensure
			   this	consistency, the NAME  field  must  be	filled
			   with	 the disk file name while parsing, and must be
			   used	as file	name for driving.

       PHINS		   Pointer to the head of the list of instances	 being
			   used	 for  the  model description. See phins(3) for
			   details.

       PHCON		   Pointer to the head of the list of connectors (ter-
			   minals) of the model.  See phcon(3) for details.

       PHSEG		   Pointer to the head of the list of segments (wires)
			   of the model.  See phseg(3) for details.

       PHVIA		   Pointer to the head of the list of contacs and vias
			   of the model.  See phvia(3) for details.

       PHREF		   Pointer  to	the  head of the list of references of
			   the model.  See phref(3) for	details.

       XAB1, YAB1, XAB2, YAB2
			   Coordinates of the bottom left corner of the	 abut-
			   ment	box of the figure. The abutment	box of a model
			   represents the external visibility of a figure  and
			   is what reference is	made to	when instanciating the
			   model.  One should well  distinguish	 the  abutment
			   box	from  the  bounding box, which is the smallest
			   rectangle that includes all cell descriptors.   The
			   size	and position of	the abutment box is a designer
			   concern, and	cannot be computed.

       MODE		   Caracter indicating the status  of  the  figure  in
			   memory. This	field can take two values :

			   'A'	     all the cell is loaded in ram.

			   'P'	     only information concerning the model in-
				     terface is	present, that means connectors
				     and the abutment box. All other lists are
				     empty.

       MODELCHAIN	   Pointer to a	chain list, see	chain(3) for  details,
			   of  names.  These  are the names of the models that
			   are at least	instanciated once in the figure.

       USER		   Pointer to a	ptype list, see	ptype(3) for  details,
			   that	is a general purpose pointer used to share in-
			   formations on the model.

       Remark :		   mbk's physical view of a cell is  releted  to  it's
			   logical view	by means of connector names, that must
			   be identical.

SEE ALSO
       mbk(1), addphfig(3), getphfig(3),  delphfig(3),	loadphfig(3),  saveph-
       fig(3),	phins(3),  phvia(3),  phcon(3),	 phseg(3), phref(3), ptype(3),
       lofig(3).

ASIM/LIP6			October	1, 1997			      PHFIG(3)

NAME | DESCRIPTION | SEE ALSO

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