110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/**********
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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/ifsim.h"
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#include "ngspice/iferrmsg.h"
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#include "ngspice/acdefs.h"
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#include "ngspice/cktdefs.h"
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#include "analysis.h"
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/* ARGSUSED */
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int
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ACsetParm(CKTcircuit *ckt, JOB *anal, int which, IFvalue *value)
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{
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ACAN *job = (ACAN *) anal;
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NG_IGNORE(ckt);
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switch(which) {
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case AC_START:
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if (value->rValue < 0.0) {
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errMsg = copy("Frequency of < 0 is invalid for AC start");
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job->ACstartFreq = 1.0;
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return(E_PARMVAL);
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}
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job->ACstartFreq = value->rValue;
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break;
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case AC_STOP:
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if (value->rValue < 0.0) {
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errMsg = copy("Frequency of < 0 is invalid for AC stop");
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job->ACstartFreq = 1.0;
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return(E_PARMVAL);
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}
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job->ACstopFreq = value->rValue;
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break;
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case AC_STEPS:
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job->ACnumberSteps = value->iValue;
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break;
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case AC_DEC:
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if(value->iValue) {
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job->ACstepType = DECADE;
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} else {
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if (job->ACstepType == DECADE) {
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job->ACstepType = 0;
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}
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}
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break;
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case AC_OCT:
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if(value->iValue) {
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job->ACstepType = OCTAVE;
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} else {
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if (job->ACstepType == OCTAVE) {
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job->ACstepType = 0;
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}
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}
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break;
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case AC_LIN:
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if(value->iValue) {
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job->ACstepType = LINEAR;
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} else {
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if (job->ACstepType == LINEAR) {
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job->ACstepType = 0;
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}
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}
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break;
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default:
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return(E_BADPARM);
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}
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return(OK);
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}
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static IFparm ACparms[] = {
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{ "start", AC_START, IF_SET|IF_ASK|IF_REAL, "starting frequency" },
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{ "stop", AC_STOP, IF_SET|IF_ASK|IF_REAL, "ending frequency" },
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{ "numsteps", AC_STEPS,IF_SET|IF_ASK|IF_INTEGER, "number of frequencies"},
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{ "dec", AC_DEC, IF_SET|IF_FLAG, "step by decades" },
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{ "oct", AC_OCT, IF_SET|IF_FLAG, "step by octaves" },
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{ "lin", AC_LIN, IF_SET|IF_FLAG, "step linearly" }
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};
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SPICEanalysis ACinfo = {
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{
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"AC",
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"A.C. Small signal analysis",
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NUMELEMS(ACparms),
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ACparms
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},
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sizeof(ACAN),
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FREQUENCYDOMAIN,
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1,
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ACsetParm,
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ACaskQuest,
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NULL,
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ACan
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};
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