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68 lines
2.3 KiB
68 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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#include "ngspice/ngspice.h"
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#include "ngspice/cktdefs.h"
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#include "ngspice/smpdefs.h"
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#include "ngspice/sperror.h"
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#include "ngspice/devdefs.h"
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int
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CKTic(CKTcircuit *ckt)
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{
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int error;
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int size;
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int i;
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CKTnode *node;
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size = SMPmatSize(ckt->CKTmatrix);
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for (i=0;i<=size;i++) {
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ckt->CKTrhs[i]=0;
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}
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for(node = ckt->CKTnodes;node != NULL; node = node->next) {
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if(node->nsGiven) {
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if (ckt->CKTkluMODE) {
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node->ptr = (double *) SMPfindElt (ckt->CKTmatrix, node->number, node->number, 0) ;
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if (node->ptr == NULL) {
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printf ("Warning: The needed element doesn't exist in the matrix, but KLU mode cannot create a new element. ") ;
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printf ("Please specify an existing element for .nodeset\n") ;
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}
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} else {
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node->ptr = SMPmakeElt(ckt->CKTmatrix,node->number,node->number);
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}
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if(node->ptr == NULL) return(E_NOMEM);
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ckt->CKThadNodeset = 1;
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ckt->CKTrhsOld[node->number] = ckt->CKTrhs[node->number] = node->nodeset;
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}
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if(node->icGiven) {
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if(! ( node->ptr)) {
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if (ckt->CKTkluMODE) {
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node->ptr = (double *) SMPfindElt (ckt->CKTmatrix, node->number, node->number, 0) ;
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if (node->ptr == NULL) {
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printf ("Warning: The needed element doesn't exist in the matrix, but KLU mode cannot create a new element. ") ;
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printf ("Please specify an existing element for .ic\n") ;
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}
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} else {
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node->ptr = SMPmakeElt(ckt->CKTmatrix,node->number, node->number);
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}
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if(node->ptr == NULL) return(E_NOMEM);
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}
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ckt->CKTrhsOld[node->number] = ckt->CKTrhs[node->number] = node->ic;
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}
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}
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if(ckt->CKTmode & MODEUIC) {
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for (i=0;i<DEVmaxnum;i++) {
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if( DEVices[i] && DEVices[i]->DEVsetic && ckt->CKThead[i] ) {
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error = DEVices[i]->DEVsetic (ckt->CKThead[i], ckt);
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if(error) return(error);
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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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