epilectrik
/
pyNgSpice
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Prevent arithmetic overflow and reduce operations

pre-master-46
dwarning 4 years ago
committed by Holger Vogt
parent
87b9df6681
commit
ba9f5be52c
1 changed files with 10 additions and 7 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 17
      src/spicelib/devices/bjt/bjtload.c

17
src/spicelib/devices/bjt/bjtload.c
View File

@ -131,10 +131,13 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
double vrci=0.0, delvrci; double vrci=0.0, delvrci;
double Irci=0.0, Irci_Vrci=0.0, Irci_Vbci=0.0, Irci_Vbcx=0.0; double Irci=0.0, Irci_Vrci=0.0, Irci_Vbci=0.0, Irci_Vbcx=0.0;
double Qbci=0.0, Qbci_Vbci=0.0, Qbcx, Qbcx_Vbcx=0.0, gbcx, cbcx; double Qbci=0.0, Qbci_Vbci=0.0, Qbcx, Qbcx_Vbcx=0.0, gbcx, cbcx;
int ttype;
/* loop through all the models */ /* loop through all the models */
for( ; model != NULL; model = BJTnextModel(model)) { for( ; model != NULL; model = BJTnextModel(model)) {
ttype = model->BJTtype*model->BJTsubs;
/* loop through all the instances of the model */ /* loop through all the instances of the model */
for (here = BJTinstances(model); here != NULL ; for (here = BJTinstances(model); here != NULL ;
here=BJTnextInstance(here)) { here=BJTnextInstance(here)) {
@ -179,7 +182,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOp+here->BJTbaseNode)- *(ckt->CKTrhsOp+here->BJTbaseNode)-
*(ckt->CKTrhsOp+here->BJTcolPrimeNode)); *(ckt->CKTrhsOp+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOp+here->BJTsubstNode)- *(ckt->CKTrhsOp+here->BJTsubstNode)-
*(ckt->CKTrhsOp+here->BJTsubstConNode)); *(ckt->CKTrhsOp+here->BJTsubstConNode));
} }
@ -193,7 +196,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOld+here->BJTbaseNode)- *(ckt->CKTrhsOld+here->BJTbaseNode)-
*(ckt->CKTrhsOld+here->BJTcolPrimeNode)); *(ckt->CKTrhsOld+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOld+here->BJTsubstNode)- *(ckt->CKTrhsOld+here->BJTsubstNode)-
*(ckt->CKTrhsOld+here->BJTsubstConNode)); *(ckt->CKTrhsOld+here->BJTsubstConNode));
} }
@ -201,7 +204,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOp+here->BJTbaseNode)- *(ckt->CKTrhsOp+here->BJTbaseNode)-
*(ckt->CKTrhsOp+here->BJTcolPrimeNode)); *(ckt->CKTrhsOp+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOp+here->BJTsubstNode)- *(ckt->CKTrhsOp+here->BJTsubstNode)-
*(ckt->CKTrhsOp+here->BJTsubstConNode)); *(ckt->CKTrhsOp+here->BJTsubstConNode));
} }
@ -221,7 +224,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOld+here->BJTbaseNode)- *(ckt->CKTrhsOld+here->BJTbaseNode)-
*(ckt->CKTrhsOld+here->BJTcolPrimeNode)); *(ckt->CKTrhsOld+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOld+here->BJTsubstNode)- *(ckt->CKTrhsOld+here->BJTsubstNode)-
*(ckt->CKTrhsOld+here->BJTsubstConNode)); *(ckt->CKTrhsOld+here->BJTsubstConNode));
} else if(ckt->CKTmode & MODEINITTRAN) { } else if(ckt->CKTmode & MODEINITTRAN) {
@ -232,7 +235,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOld+here->BJTbaseNode)- *(ckt->CKTrhsOld+here->BJTbaseNode)-
*(ckt->CKTrhsOld+here->BJTcolPrimeNode)); *(ckt->CKTrhsOld+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOld+here->BJTsubstNode)- *(ckt->CKTrhsOld+here->BJTsubstNode)-
*(ckt->CKTrhsOld+here->BJTsubstConNode)); *(ckt->CKTrhsOld+here->BJTsubstConNode));
if( (ckt->CKTmode & MODETRAN) && (ckt->CKTmode & MODEUIC) ) { if( (ckt->CKTmode & MODETRAN) && (ckt->CKTmode & MODEUIC) ) {
@ -331,7 +334,7 @@ BJTload(GENmodel *inModel, CKTcircuit *ckt)
vbx=model->BJTtype*( vbx=model->BJTtype*(
*(ckt->CKTrhsOld+here->BJTbaseNode)- *(ckt->CKTrhsOld+here->BJTbaseNode)-
*(ckt->CKTrhsOld+here->BJTcolPrimeNode)); *(ckt->CKTrhsOld+here->BJTcolPrimeNode));
vsub=model->BJTtype*model->BJTsubs*(
vsub=ttype*(
*(ckt->CKTrhsOld+here->BJTsubstNode)- *(ckt->CKTrhsOld+here->BJTsubstNode)-
*(ckt->CKTrhsOld+here->BJTsubstConNode)); *(ckt->CKTrhsOld+here->BJTsubstConNode));
cchat= *(ckt->CKTstate0 + here->BJTcc)+(*(ckt->CKTstate0 + cchat= *(ckt->CKTstate0 + here->BJTcc)+(*(ckt->CKTstate0 +
@ -882,7 +885,7 @@ load:
* load current excitation vector * load current excitation vector
*/ */
geqsub = gcsub + gdsub; geqsub = gcsub + gdsub;
ceqsub=model->BJTtype * model->BJTsubs *
ceqsub=ttype *
(*(ckt->CKTstate0 + here->BJTcqsub) + cdsub - vsub*geqsub); (*(ckt->CKTstate0 + here->BJTcqsub) + cdsub - vsub*geqsub);
ceqbx=model->BJTtype * (*(ckt->CKTstate0 + here->BJTcqbx) - ceqbx=model->BJTtype * (*(ckt->CKTstate0 + here->BJTcqbx) -
vbx * geqbx); vbx * geqbx);

Write Preview
Loading…
Cancel
Save