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83 lines
2.3 KiB
83 lines
2.3 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/smpdefs.h"
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#include "ngspice/cktdefs.h"
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#include "vcvsdefs.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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VCVSsetup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit *ckt, int *states)
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{
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VCVSmodel *model = (VCVSmodel *)inModel;
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VCVSinstance *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->VCVSnextModel ) {
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/* loop through all the instances of the model */
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for (here = model->VCVSinstances; here != NULL ;
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here=here->VCVSnextInstance) {
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if(here->VCVSposNode == here->VCVSnegNode) {
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SPfrontEnd->IFerror (ERR_FATAL,
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"instance %s is a shorted VCVS", &here->VCVSname);
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return(E_UNSUPP);
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}
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if(here->VCVSbranch == 0) {
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error = CKTmkCur(ckt,&tmp,here->VCVSname,"branch");
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if(error) return(error);
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here->VCVSbranch = tmp->number;
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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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if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
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return(E_NOMEM);\
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}
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TSTALLOC(VCVSposIbrptr, VCVSposNode, VCVSbranch)
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TSTALLOC(VCVSnegIbrptr, VCVSnegNode, VCVSbranch)
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TSTALLOC(VCVSibrPosptr, VCVSbranch, VCVSposNode)
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TSTALLOC(VCVSibrNegptr, VCVSbranch, VCVSnegNode)
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TSTALLOC(VCVSibrContPosptr, VCVSbranch, VCVScontPosNode)
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TSTALLOC(VCVSibrContNegptr, VCVSbranch, VCVScontNegNode)
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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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VCVSunsetup(GENmodel *inModel, CKTcircuit *ckt)
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{
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VCVSmodel *model;
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VCVSinstance *here;
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for (model = (VCVSmodel *)inModel; model != NULL;
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model = model->VCVSnextModel)
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{
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for (here = model->VCVSinstances; here != NULL;
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here=here->VCVSnextInstance)
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{
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if (here->VCVSbranch) {
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CKTdltNNum(ckt, here->VCVSbranch);
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here->VCVSbranch = 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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