ccvssetup.c

支持数字元件仿真的SPICE插件

/*
 * Copyright (c) 1985 Thomas L. Quarles
 */

    /* load the voltage source structure with those pointers needed later 
     * for fast matrix loading 
     */

#include "prefix.h"
#include <stdio.h>
#include "CKTdefs.h"
#include "CCVSdefs.h"
#include "util.h"
#include "SPerror.h"
#include "suffix.h"

RCSID("CCVSsetup.c $Revision: 1.1 $ on $Date: 90/10/11 12:42:10 $")

/*ARGSUSED*/
int
CCVSsetup(matrix,inModel,ckt,states)
    register SMPmatrix *matrix;
    GENmodel *inModel;
    register CKTcircuit *ckt;
    int *states;
{
    register CCVSmodel *model = (CCVSmodel*)inModel;
    register CCVSinstance *here;
    int error;
    CKTnode *tmp;

    /*  loop through all the voltage source models */
    for( ; model != NULL; model = model->CCVSnextModel ) {

        /* loop through all the instances of the model */
        for (here = model->CCVSinstances; here != NULL ;
                here=here->CCVSnextInstance) {
            
            if(here->CCVSbranch==0) {
                error = CKTmkCur(ckt,&tmp,here->CCVSname, "current");
                if(error) return(error);
                here->CCVSbranch = tmp->number;
            }
            here->CCVScontBranch = CKTfndBranch(ckt,here->CCVScontName);
            if(here->CCVScontBranch == NULL) {
                IFuid namarray[2];
                namarray[0] = here->CCVSname;
                namarray[1] = here->CCVScontName;
                (*(SPfrontEnd->IFerror))(ERR_FATAL,
                        "%s: unknown controlling source %s",namarray);
                return(E_BADPARM);
            }

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

            TSTALLOC(CCVSposIbrptr, CCVSposNode, CCVSbranch)
            TSTALLOC(CCVSnegIbrptr, CCVSnegNode, CCVSbranch)
            TSTALLOC(CCVSibrNegptr, CCVSbranch, CCVSnegNode)
            TSTALLOC(CCVSibrPosptr, CCVSbranch, CCVSposNode)
            TSTALLOC(CCVSibrContBrptr, CCVSbranch, CCVScontBranch)
        }
    }
    return(OK);
}