ADDLOINS(3)						       MBK LOGICAL FUNCTIONS						       ADDLOINS(3)

NAME

       addloins - create a logical instance

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

       #include "mlo.h"
       loins_list *addloins(ptfig, insname, ptmodel, sigchain)
       lofig_list *ptfig;
       char *insname;
       lofig_list *ptmodel;
       chain_list *sigchain;

PARAMETERS

       ptfig		   Pointer to the figure in which the instance should be added

       insname		   Instance name

       ptmodel		   Pointer to the instance model

       sigchain 	   Pointer to chain list of signal pointers

DESCRIPTION

       addloins creates a new instance, and adds it to the list of instances pointed to by ptfig->LOINS. The new instance is added in front of the
       list, and becomes itself the list head.
       The parameter insname fills the INSNAME field of the loins structure.
       The  ptmodel is used for two purposes. First, the ptmodel->NAME fills the FIGNAME field. Second, the connectors of the figure pointed to by
       ptmodel are duplicated in the LOCON field, but the signals linked to each connector are	the  one  given  in  the  sigchain  argument.  See
       chain(3) for details on chain_lists.
       The  matching  is  done	in order, it means that the first connector is linked to the first signal of the sigchain, and so on. Care must be
       taken when instanciating in order to warranty the validity of the netlist.  For details on the structure, see loins(3).

RETURN VALUE

       addloins returns a pointer to the newly created instance.

ERRORS

       "*** mbk error *** addloins impossible : instance insname already exist in figure ptfig->NAME"
	      The insname is the instance identifier. So it must be unique at a given hierarchy level.
       "*** mbk error *** addloins impossible : instance model is the figure figname itself"
	      The model of the instance has the same name that the figure where the instantiation takes place. This check is only performed for  a
	      single hierarchy level, in terms of its instances.
       "***  mbk  error  ***  addloins	impossible  :  connector  number  discrepancy  between figure ptmodel->NAME and instance insname in figure
       ptfig->NAME"
	      The number of signals in the sigchain is not equal to the number of connectors of the model. The matching is not done correctly.

EXAMPLE

       #include "mlo.h"
       void add_na2_y(pt, in1, in2, out) /* add an instance of na2_y */
       lofig_list *pt; /* pointer to the figure */
       long in1, in2, out; /* signals indexes */
       {
       chain_list *signal = NULL;
	  /* get the pointer when signal index is known */
	  signal = addchain(signal, (void *)givelosig(pt, in1));
	  signal = addchain(signal, (void *)givelosig(pt, in2));
	  signal = addchain(signal, (void *)givelosig(pt, out));
	  /* get vdd and vss */
	  signal = addchain(signal, (void *)give_vdd(pt));
	  signal = addchain(signal, (void *)give_vss(pt));
	  /* reverse the list */
	  signal = reverse(signal);
	  addloins(pt, "nand", getlofig("na2_y"), signal);
       }

SEE ALSO

       mbk(1), lofig(3), loins(3), chain(3), getloins(3), delloins(3).

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						       ADDLOINS(3)