/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1985 Thomas L. Quarles
Modified: Apr 2000 Paolo Nenzi
**********/

#include "ngspice/ngspice.h"
#include "ngspice/smpdefs.h"
#include "resdefs.h"
#include "ngspice/sperror.h"


int
RESsetup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit*ckt, int *state)
        /* load the resistor structure with those pointers needed later
         * for fast matrix loading
         */
{
    RESmodel *model = (RESmodel *)inModel;
    RESinstance *here;

    NG_IGNORE(state);
    NG_IGNORE(ckt);

    /*  loop through all the resistor models */
    for( ; model != NULL; model = model->RESnextModel ) {

        if(!model->RESbv_maxGiven)
            model->RESbv_max = 1e99;

        /* loop through all the instances of the model */
        for (here = model->RESinstances; here != NULL ;
                here=here->RESnextInstance) {

            if(!here->RESmGiven)
                here->RESm = 1.0;
            if(!here->RESbv_maxGiven)
                here->RESbv_max = model->RESbv_max;

/* macro to make elements with built in test for out of memory */
#define TSTALLOC(ptr,first,second) \
do { if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
    return(E_NOMEM);\
} } while(0)

            TSTALLOC(RESposPosptr, RESposNode, RESposNode);
            TSTALLOC(RESnegNegptr, RESnegNode, RESnegNode);
            TSTALLOC(RESposNegptr, RESposNode, RESnegNode);
            TSTALLOC(RESnegPosptr, RESnegNode, RESposNode);
        }
    }
    return(OK);
}