ngspice/src/frontend/com_measure2.c

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#include <config.h>
#include <ngspice.h>
#include <fteext.h>
#include <wordlist.h>
#include "vectors.h"
#include <math.h>
typedef struct measure
{
char *result;
char *m_vec; // name of the output variable which determines the beginning of the measurement
char *m_vec2;
int m_rise;
int m_fall;
int m_cross;
float m_val; // value of the m_ver at which the counter for crossing, rises or falls is incremented by one
float m_td; // amount of delay before the measurement should start
float m_from;
float m_to;
float m_at;
float m_measured;
float m_measured_at;
} measure;
enum AnalysisType {
AT_DELAY, AT_TRIG,
AT_FIND, AT_WHEN,
AT_AVG, AT_MIN, AT_MAX, AT_RMS, AT_PP,
AT_INTEG, AT_DERIV,
AT_ERR, AT_ERR1, AT_ERR2, AT_ERR3
};
void com_measure_when(struct measure *meas) {
int i, first;
int riseCnt =0;
int fallCnt =0;
int crossCnt =0;
int section = -1;
float value, prevValue;
float timeValue, prevTimeValue;
enum ValSide { S_ABOVE_VAL, S_BELOW_VAL };
enum ValEdge { E_RISING, E_FALLING };
struct dvec *d, *dTime;
d = vec_get(meas->m_vec);
dTime = plot_cur->pl_scale;
if (d == NULL) {
fprintf(cp_err, "Error: no such vector as %s.\n", meas->m_vec);
return;
}
if (dTime == NULL) {
fprintf(cp_err, "Error: no such vector as time.\n");
return;
}
prevValue =0;
prevTimeValue =0;
first =0;
for (i=0; i < d->v_length; i++) {
value = d->v_realdata[i];
timeValue = dTime->v_realdata[i];
if (timeValue < meas->m_td)
continue;
if (first == 1) {
// initialise
crossCnt =0;
if (value < meas->m_val) {
section = S_BELOW_VAL;
if ( (prevValue <= meas->m_val) && (value >= meas->m_val) ) {
fallCnt =1;
crossCnt =1;
}
} else {
section = S_ABOVE_VAL;
if ( (prevValue <= meas->m_val) && (value >= meas->m_val) ) {
riseCnt =1;
crossCnt =1;
}
}
printf("");
}
if (first > 1) {
if ( (section == S_BELOW_VAL) && (value >= meas->m_val) ) {
section = S_ABOVE_VAL;
crossCnt++;
riseCnt++;
} else if ( (section == S_ABOVE_VAL) && (value <= meas->m_val) ) {
section = S_BELOW_VAL;
crossCnt++;
fallCnt++;
}
if ((crossCnt == meas->m_cross) || (riseCnt == meas->m_rise) || (fallCnt == meas->m_fall)) {
meas->m_measured = prevTimeValue + (meas->m_val - prevValue) * (timeValue - prevTimeValue) / (value - prevValue);
return;
}
}
first ++;
prevValue = value;
prevTimeValue = timeValue;
}
meas->m_measured = 0.0e0;
return;
}
void measure_at(struct measure *meas, float at) {
int i;
float value, pvalue, svalue, psvalue;
struct dvec *d, *dScale;
psvalue = pvalue = 0;
d = vec_get(meas->m_vec);
dScale = plot_cur->pl_scale;
if (d == NULL) {
fprintf(cp_err, "Error: no such vector as %s.\n", meas->m_vec);
return;
}
if (dScale == NULL) {
fprintf(cp_err, "Error: no such vector time.\n");
return;
}
for (i=0; i < d->v_length; i++) {
value = d->v_realdata[i];
svalue = dScale->v_realdata[i];
if ( (i > 0) && (psvalue <= at) && (svalue >= at) ) {
meas->m_measured = pvalue + (at - psvalue) * (value - pvalue) / (svalue - psvalue);
// meas->m_measured = value;
return;
}
psvalue = svalue;
pvalue = value;
}
meas->m_measured = 0.0e0;
return;
}
void measure_avg( ) {
// AVG (Average):
// Calculates the area under the 'out_var' divided by the periods of intrest
return;
}
void measure_minMaxAvg( struct measure *meas, int minMax ) {
int i, avgCnt;
struct dvec *d, *dScale;
float value, svalue, mValue, mValueAt;
int first;
mValue =0;
mValueAt = svalue =0;
meas->m_measured = 0.0e0;
meas->m_measured_at = 0.0e0;
first =0;
avgCnt =0;
d = vec_get(meas->m_vec);
if (d == NULL) {
fprintf(cp_err, "Error: no such vector as %s.\n", meas->m_vec);
return;
}
dScale = vec_get("time");
if (d == NULL) {
fprintf(cp_err, "Error: no such vector as time.\n");
return;
}
for (i=0; i < d->v_length; i++) {
value = d->v_realdata[i];
svalue = dScale->v_realdata[i];
if (svalue < meas->m_from)
continue;
if ((meas->m_to != 0.0e0) && (svalue > meas->m_to) )
break;
if (first ==0) {
mValue = value;
mValueAt = svalue;
first =1;
} else {
switch (minMax) {
case AT_MIN: {
if (value <= mValue) {
mValue = value;
mValueAt = svalue;
}
break;
}
case AT_MAX: {
if (value >= mValue) {
mValue = value;
mValueAt = svalue;
}
break;
}
case AT_AVG:
case AT_RMS: {
mValue = mValue + value;
avgCnt ++;
break;
}
}
}
}
switch (minMax)
{
case AT_AVG: {
meas->m_measured = (mValue / avgCnt);
meas->m_measured_at = svalue;
break;
}
case AT_RMS: {
// printf(" mValue %e svalue %e avgCnt %i, ", mValue, svalue, avgCnt);
meas->m_measured = sqrt(mValue) / avgCnt;
meas->m_measured_at = svalue;
break;
}
case AT_MIN:
case AT_MAX: {
meas->m_measured = mValue;
meas->m_measured_at = mValueAt;
break;
}
}
return;
}
void measure_rms( ) {
// RMS (root mean squared):
// Calculates the square root of the area under the 'out_var2' curve
// divided be the period of interest
return;
}
void measure_integ( ) {
// INTEGRAL INTEG
return;
}
void measure_deriv( ) {
// DERIVATIVE DERIV
return;
}
// ERR Equations
void measure_ERR( ) {
return;
}
void measure_ERR1( ) {
return;
}
void measure_ERR2( ) {
return;
}
void measure_ERR3( ) {
return;
}
void measure_errMessage(char *mName, char *mFunction, char *trigTarg, char *errMsg) {
printf("\tmeasure '%s' failed\n", mName);
printf("Error: measure %s %s(%s) :\n", mName, mFunction, trigTarg);
printf("\t%s\n",errMsg);
return;
}
void com_dotmeasure( ) {
// simulation info
// printf("*%s\n", plot_cur->pl_title);
// printf("\t %s, %s\n", plot_cur->pl_name, plot_cur->pl_date); // missing temp
return;
}
int measure_valid_vector(char *vec) {
struct dvec *d;
d = vec_get(vec);
if (d == NULL)
return 0;
return 1;
}
int measure_parse_stdParams (struct measure *meas, wordlist *wl, wordlist *wlBreak, char *errbuf) {
int pCnt;
char *p, *pName, *pValue;
double *engVal, engVal1;
pCnt =0;
while (wl != wlBreak) {
p = wl->wl_word;
pName = strtok(p, "=");
pValue = strtok(NULL, "=");
if (pValue == NULL) {
sprintf(errbuf,"bad syntax of ??\n");
return 0;
}
if (!(engVal = ft_numparse(&pValue, FALSE))) {
sprintf(errbuf,"bad syntax of ??\n");
return 0;
}
engVal1 = *engVal;
if(strcasecmp(pName,"RISE")==0) {
meas->m_rise = engVal1;
meas->m_fall = -1;
meas->m_cross = -1;
} else if(strcasecmp(pName,"FALL")==0) {
meas->m_fall = engVal1;
meas->m_rise = -1;
meas->m_cross = -1;
} else if(strcasecmp(pName,"CROSS")==0) {
meas->m_cross = engVal1;
meas->m_rise = -1;
meas->m_fall = -1;
} else if(strcasecmp(pName,"VAL")==0) {
meas->m_val = engVal1;
} else if(strcasecmp(pName,"TD")==0) {
meas->m_td = engVal1;
} else if(strcasecmp(pName,"FROM")==0) {
meas->m_from = engVal1;
} else if(strcasecmp(pName,"TO")==0) {
meas->m_to = engVal1;
} else if(strcasecmp(pName,"AT")==0) {
meas->m_at = engVal1;
} else {
sprintf(errbuf,"no such parameter as '%s'\n",pName);
return 0;
}
pCnt ++;
wl = wl->wl_next;
}
if (pCnt == 0) {
sprintf(errbuf,"bad syntax of ??\n");
return 0;
}
// valid vector
if (measure_valid_vector(meas->m_vec)==0) {
sprintf(errbuf,"no such vector as '%s'\n", meas->m_vec);
return 0;
}
// valid vector2
if (meas->m_vec2 != NULL) {
if (measure_valid_vector(meas->m_vec2)==0) {
sprintf(errbuf,"no such vector as '%s'\n", meas->m_vec2);
return 0;
}
}
return 1;
}
int measure_parse_find (struct measure *meas, wordlist *wl, wordlist *wlBreak, char *errbuf) {
int pCnt;
char *p, *pName, *pVal;
double *engVal, engVal1;
meas->m_vec = NULL;
meas->m_vec2 = NULL;
meas->m_val = -1;
meas->m_cross = -1;
meas->m_fall = -1;
meas->m_rise = -1;
meas->m_td = 0;
meas->m_from = 0.0e0;
meas->m_to = 0.0e0;
meas->m_at = -1;
pCnt =0;
while(wl != wlBreak) {
p = wl->wl_word;
if (pCnt == 0 ) {
// meas->m_vec =(char *)malloc(strlen(wl->wl_word)+1);
// strcpy(meas->m_vec, cp_unquote(wl->wl_word));
meas->m_vec= cp_unquote(wl->wl_word);
} else if (pCnt == 1) {
pName = strtok(p, "=");
pVal = strtok(NULL, "=");
if (pVal == NULL) {
sprintf(errbuf,"bad syntax of WHEN\n");
return 0;
}
if (strcasecmp(pName,"AT")==0) {
if (!(engVal = ft_numparse(&pVal, FALSE))) {
sprintf(errbuf,"bad syntax of WHEN\n");
return 0;
}
engVal1 = *engVal;
meas->m_at = engVal1;
} else {
sprintf(errbuf,"bad syntax of WHEN\n");
return 0;
}
} else {
if (measure_parse_stdParams(meas, wl, NULL, errbuf) == 0)
return 0;
}
wl = wl->wl_next;
pCnt ++;
}
return 1;
}
int measure_parse_when (struct measure *meas, wordlist *wl, char *errBuf) {
int pCnt;
char *p, *pVar1, *pVar2;
meas->m_vec = NULL;
meas->m_vec2 = NULL;
meas->m_val = -1;
meas->m_cross = -1;
meas->m_fall = -1;
meas->m_rise = -1;
meas->m_td = 0;
meas->m_from = 0.0e0;
meas->m_to = 0.0e0;
meas->m_at = -1;
pCnt =0;
while (wl) {
p= wl->wl_word;
if (pCnt == 0) {
pVar1 = strtok(p, "=");
pVar2 = strtok(NULL, "=");
if (pVar2 == NULL) {
sprintf(errBuf,"bad syntax\n");
return 0;
}
meas->m_vec = pVar1;
if (measure_valid_vector(pVar2)==1)
meas->m_vec2 = pVar2;
else
meas->m_val = atof(pVar2);
} else {
if (measure_parse_stdParams(meas, wl, NULL, errBuf) == 0)
return 0;
break;
}
wl = wl->wl_next;
pCnt ++;
}
return 1;
}
int measure_parse_trigtarg (struct measure *meas, wordlist *words, wordlist *wlTarg, char *trigTarg, char *errbuf) {
int pcnt;
char *p;
meas->m_vec = NULL;
meas->m_vec2 = NULL;
meas->m_cross = -1;
meas->m_fall = -1;
meas->m_rise = -1;
meas->m_td = 0;
meas->m_from = 0.0e0;
meas->m_to = 0.0e0;
meas->m_at = -1;
pcnt =0;
while (words != wlTarg) {
p = words->wl_word;
if (pcnt ==0) {
// meas->m_vec =(char *)malloc(strlen(words->wl_word)+1);
// strcpy(meas->m_vec, cp_unquote(words->wl_word));
meas->m_vec= cp_unquote(words->wl_word);
} else {
if (measure_parse_stdParams(meas, words, wlTarg, errbuf) == 0)
return 0;
break;
}
words = words->wl_next;
pcnt ++;
}
if (pcnt == 0) {
sprintf(errbuf,"bad syntax of '%s'\n", trigTarg);
return 0;
}
// valid vector
if (measure_valid_vector(meas->m_vec)==0) {
sprintf(errbuf,"no such vector as '%s'\n", meas->m_vec);
return 0;
}
return 1;
}
float
get_measure2(wordlist *wl)
{
wordlist *words, *wlTarg, *wlWhen;
char errbuf[100];
char *mType = NULL; // analysis type
char *mName = NULL; // name given to the measured output
char *mFunction = NULL;
int mFunctionType, wl_cnt;
char *p;
mFunctionType = -1;
if (!wl) {
printf("usage: measure .....\n");
return 0.0e0;
}
if (!plot_cur || !plot_cur->pl_dvecs || !plot_cur->pl_scale) {
fprintf(cp_err, "Error: no vectors available\n");
return 0.0e0;
}
if (!ciprefix("tran", plot_cur->pl_typename)) {
fprintf(cp_err, "Error: measure limited to transient analysis\n");
return 0.0e0;
}
words =wl;
wlTarg = NULL;
wlWhen = NULL;
if (!words) {
fprintf(cp_err, "Error: no assignment found.\n");
return 0.0e0;
}
wl_cnt = 0;
while (words) {
switch(wl_cnt)
{
case 0:
mType = cp_unquote(words->wl_word);
break;
case 1:
mName = cp_unquote(words->wl_word);
break;
case 2:
{
mFunction = cp_unquote(words->wl_word);
// Functions
if (strcasecmp(mFunction,"DELAY")==0)
mFunctionType = AT_DELAY;
else if (strcasecmp(mFunction,"TRIG")==0)
mFunctionType = AT_DELAY;
else if (strcasecmp(mFunction,"FIND")==0)
mFunctionType = AT_FIND;
else if (strcasecmp(mFunction,"WHEN")==0)
mFunctionType = AT_WHEN;
else if (strcasecmp(mFunction,"AVG")==0)
mFunctionType = AT_AVG;
else if (strcasecmp(mFunction,"MIN")==0)
mFunctionType = AT_MIN;
else if (strcasecmp(mFunction,"MAX")==0)
mFunctionType = AT_MAX;
else if (strcasecmp(mFunction,"RMS")==0)
mFunctionType = AT_RMS;
else if (strcasecmp(mFunction,"PP")==0)
mFunctionType = AT_PP;
else if (strcasecmp(mFunction,"INTEG")==0)
mFunctionType = AT_INTEG;
else if (strcasecmp(mFunction,"DERIV")==0)
mFunctionType = AT_DERIV;
else if (strcasecmp(mFunction,"ERR")==0)
mFunctionType = AT_ERR;
else if (strcasecmp(mFunction,"ERR1")==0)
mFunctionType = AT_ERR1;
else if (strcasecmp(mFunction,"ERR2") == 0)
mFunctionType = AT_ERR2;
else if (strcasecmp(mFunction,"ERR3") == 0)
mFunctionType = AT_ERR3;
else {
printf("\tmeasure '%s' failed\n", mName);
printf("Error: measure %s :\n", mName);
printf("\tno such function as '%s'\n", mFunction);
return 0.0e0;
}
break;
}
default:
{
p = words->wl_word;
if (strcasecmp(p,"targ")==0)
wlTarg = words;
if (strcasecmp(p,"when")==0)
wlWhen = words;
break;
}
}
wl_cnt ++;
words = words->wl_next;
}
if (wl_cnt < 3) {
printf("\tmeasure '%s' failed\n", mName);
printf("Error: measure %s :\n", mName);
printf("\tinvalid num params\n");
return 0.0e0;
}
//------------------------
words =wl;
if (words)
words = words->wl_next; // skip
if (words)
words = words->wl_next; // results name
if (words)
words = words->wl_next; // Function
// switch here
switch(mFunctionType)
{
case AT_DELAY:
case AT_TRIG:
{
// trig parameters
measure *measTrig, *measTarg;
measTrig = (struct measure*)malloc(sizeof(struct measure));
measTarg = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_trigtarg(measTrig, words , wlTarg, "trig", errbuf)==0) {
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
if ((measTrig->m_rise == -1) && (measTrig->m_fall == -1) && (measTrig->m_cross == -1)) {
sprintf(errbuf,"rise, fall or cross must be given\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
while (words != wlTarg)
words = words->wl_next; // hack
if (words)
words = words->wl_next; // skip targ
if (measure_parse_trigtarg(measTarg, words , NULL, "targ", errbuf)==0) {
measure_errMessage(mName, mFunction, "TARG", errbuf);
return 0.0e0;
}
if ((measTarg->m_rise == -1) && (measTarg->m_fall == -1) && (measTarg->m_cross == -1)) {
sprintf(errbuf,"rise, fall or cross must be given\n");
measure_errMessage(mName, mFunction, "TARG", errbuf);
return 0.0e0;
}
// measure trig
if (measTrig->m_at == -1)
com_measure_when(measTrig);
else
measTrig->m_measured = measTrig->m_at;
if (measTrig->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
// measure targ
com_measure_when(measTarg);
if (measTarg->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TARG", errbuf);
return 0.0e0;
}
// print results
printf("%-20s= %e targ= %e trig= %e\n", mName, (measTarg->m_measured - measTrig->m_measured), measTarg->m_measured, measTrig->m_measured);
return (measTarg->m_measured - measTrig->m_measured);
}
case AT_FIND:
{
measure *meas, *measFind;
meas = (struct measure*)malloc(sizeof(struct measure));
measFind = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_find(meas, words, wlWhen, errbuf) == 0) {
measure_errMessage(mName, mFunction, "FIND", errbuf);
return 0.0e0;
}
if (meas->m_at == -1 ) {
// find .. when statment
while (words != wlWhen)
words = words->wl_next; // hack
if (words)
words = words->wl_next; // skip targ
if (measure_parse_when(measFind, words, errbuf) ==0) {
measure_errMessage(mName, mFunction, "WHEN", errbuf);
return 0.0e0;
}
com_measure_when(measFind);
if (measFind->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "WHEN", errbuf);
return 0.0e0;
}
measure_at(measFind, measFind->m_measured);
meas->m_measured = measFind->m_measured;
} else {
measure_at(meas, meas->m_at);
}
if (meas->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "WHEN", errbuf);
return 0.0e0;
}
// print results
printf("%-20s= %e\n", mName, meas->m_measured);
return meas->m_measured;
}
case AT_WHEN:
{
measure *meas;
meas = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_when(meas, words, errbuf) ==0) {
measure_errMessage(mName, mFunction, "WHEN", errbuf);
return 0.0e0;
}
com_measure_when(meas);
if (meas->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "WHEN", errbuf);
return 0.0e0;
}
// print results
printf("%-20s= %e\n", mName, meas->m_measured);
return (meas->m_measured);
}
case AT_RMS:
printf("\tmeasure '%s' failed\n", mName);
printf("Error: measure %s :\n", mName);
printf("\tfunction '%s' currently not supported\n", mFunction);
break;
case AT_AVG:
{
// trig parameters
measure *meas;
meas = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_trigtarg(meas, words , NULL, "trig", errbuf)==0) {
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
// measure
measure_minMaxAvg(meas, mFunctionType);
if (meas->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf); // ??
return 0.0e0;
}
if (meas->m_at == -1)
meas->m_at = 0.0e0;
// print results
printf("%-20s= %e from= %e to= %e\n", mName, meas->m_measured, meas->m_at, meas->m_measured_at);
return meas->m_measured;
}
case AT_MIN:
case AT_MAX:
{
// trig parameters
measure *measTrig;
measTrig = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_trigtarg(measTrig, words , NULL, "trig", errbuf)==0) {
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
// measure
if (mFunctionType == AT_MIN)
measure_minMaxAvg(measTrig, AT_MIN);
else
measure_minMaxAvg(measTrig, AT_MAX);
if (measTrig->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf); // ??
return 0.0e0;
}
// print results
printf("%-20s= %e at= %e\n", mName, measTrig->m_measured, measTrig->m_measured_at);
return measTrig->m_measured;
}
case AT_PP:
{
float minValue, maxValue;
measure *measTrig;
measTrig = (struct measure*)malloc(sizeof(struct measure));
if (measure_parse_trigtarg(measTrig, words , NULL, "trig", errbuf)==0) {
measure_errMessage(mName, mFunction, "TRIG", errbuf);
return 0.0e0;
}
// measure min
measure_minMaxAvg(measTrig, AT_MIN);
if (measTrig->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf); // ??
return 0.0e0;
}
minValue = measTrig->m_measured;
// measure max
measure_minMaxAvg(measTrig, AT_MAX);
if (measTrig->m_measured == 0.0e0) {
sprintf(errbuf,"out of interval\n");
measure_errMessage(mName, mFunction, "TRIG", errbuf); // ??
return 0.0e0;
}
maxValue = measTrig->m_measured;
// print results
printf("%-20s= %e from= %e to= %e\n", mName, (maxValue - minValue), measTrig->m_from, measTrig->m_to);
return (maxValue - minValue);
}
case AT_INTEG:
case AT_DERIV:
case AT_ERR:
case AT_ERR1:
case AT_ERR2:
case AT_ERR3:
{
printf("\tmeasure '%s' failed\n", mName);
printf("Error: measure %s :\n", mName);
printf("\tfunction '%s' currently not supported\n", mFunction);
break;
}
}
return 0.0e0;
}
void com_measure2(wordlist *wl) {
get_measure2(wl);
return;
}