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90 lines
2.7 KiB
90 lines
2.7 KiB
/**********
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Copyright 1990 Regents of the University of California. All rights reserved.
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Author: 1985 Thomas L. Quarles
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**********/
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/* load the voltage source structure with those pointers needed later
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* for fast matrix loading
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*/
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#include "ngspice/ngspice.h"
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#include "ngspice/cktdefs.h"
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#include "ccvsdefs.h"
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#include "ngspice/sperror.h"
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#include "ngspice/suffix.h"
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/*ARGSUSED*/
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int
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CCVSsetup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit *ckt, int *states)
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{
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CCVSmodel *model = (CCVSmodel*)inModel;
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CCVSinstance *here;
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int error;
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CKTnode *tmp;
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NG_IGNORE(states);
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/* loop through all the voltage source models */
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for( ; model != NULL; model = model->CCVSnextModel ) {
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/* loop through all the instances of the model */
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for (here = model->CCVSinstances; here != NULL ;
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here=here->CCVSnextInstance) {
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if(here->CCVSposNode == here->CCVSnegNode) {
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SPfrontEnd->IFerror (ERR_FATAL,
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"instance %s is a shorted CCVS", &here->CCVSname);
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return(E_UNSUPP);
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}
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if(here->CCVSbranch==0) {
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error = CKTmkCur(ckt,&tmp,here->CCVSname, "branch");
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if(error) return(error);
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here->CCVSbranch = tmp->number;
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}
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here->CCVScontBranch = CKTfndBranch(ckt,here->CCVScontName);
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if(here->CCVScontBranch == 0) {
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IFuid namarray[2];
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namarray[0] = here->CCVSname;
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namarray[1] = here->CCVScontName;
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SPfrontEnd->IFerror (ERR_FATAL,
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"%s: unknown controlling source %s",namarray);
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return(E_BADPARM);
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}
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/* macro to make elements with built in test for out of memory */
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#define TSTALLOC(ptr,first,second) \
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do { if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
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return(E_NOMEM);\
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} } while(0)
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TSTALLOC(CCVSposIbrptr, CCVSposNode, CCVSbranch);
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TSTALLOC(CCVSnegIbrptr, CCVSnegNode, CCVSbranch);
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TSTALLOC(CCVSibrNegptr, CCVSbranch, CCVSnegNode);
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TSTALLOC(CCVSibrPosptr, CCVSbranch, CCVSposNode);
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TSTALLOC(CCVSibrContBrptr, CCVSbranch, CCVScontBranch);
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}
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}
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return(OK);
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}
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int
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CCVSunsetup(GENmodel *inModel, CKTcircuit *ckt)
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{
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CCVSmodel *model;
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CCVSinstance *here;
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for (model = (CCVSmodel *)inModel; model != NULL;
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model = model->CCVSnextModel)
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{
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for (here = model->CCVSinstances; here != NULL;
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here=here->CCVSnextInstance)
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{
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if (here->CCVSbranch) {
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CKTdltNNum(ckt, here->CCVSbranch);
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here->CCVSbranch = 0;
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}
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}
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}
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return OK;
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}
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