inp2r.c

spice中支持多层次元件模型仿真的可单独运行的插件源码

/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1988 Thomas L. Quarles
**********/

#include "spice.h"
#include <stdio.h>
#include "ifsim.h"
#include "inpdefs.h"
#include "inpmacs.h"
#include "fteext.h"
#include "suffix.h"

void
INP2R(ckt,tab,current)
    GENERIC *ckt;
    INPtables *tab;
    card *current;

{
/* parse a resistor card */
/* Rname <node> <node> [<val>][<mname>][w=<val>][l=<val>] */

int mytype; /* the type we determine resistors are */
int type;   /* the type the model says it is */
char *line; /* the part of the current line left to parse */
char *name; /* the resistor's name */
char *model;    /* the name of the resistor's model */
char *nname1;   /* the first node's name */
char *nname2;   /* the second node's name */
GENERIC *node1; /* the first node's node pointer */
GENERIC *node2; /* the second node's node pointer */
double val;     /* temp to held resistance */
int error;      /* error code temporary */
int error1;     /* secondary error code temporary */
INPmodel *thismodel;    /* pointer to model structure describing our model */
GENERIC *mdfast;    /* pointer to the actual model */
GENERIC *fast;  /* pointer to the actual instance */
IFvalue ptemp;  /* a value structure to package resistance into */
int waslead;    /* flag to indicate that funny unlabeled number was found */
double leadval; /* actual value of unlabeled number */
IFuid uid;      /* uid for default model */

    mytype = INPtypelook("Resistor");
    if(mytype < 0 ) {
        LITERR("Device type Resistor not supported by this binary\n")
        return;
    }
    line = current->line;
    INPgetTok(&line,&name,1);
    INPinsert(&name,tab);
    INPgetTok(&line,&nname1,1);
    INPtermInsert(ckt,&nname1,tab,&node1);
    INPgetTok(&line,&nname2,1);
    INPtermInsert(ckt,&nname2,tab,&node2);
    val = INPevaluate(&line,&error1,1);
    /* either not a number -> model, or
     * follows a number, so must be a model name
     * -> MUST be a model name (or null)
     */
    INPgetTok(&line,&model,1);
    if(*model) { /* token isn't null */
        INPinsert(&model,tab);
        thismodel = (INPmodel *)NULL;
        current->error = INPgetMod(ckt,model,&thismodel,tab);
        if(thismodel != NULL) {
            if(mytype != thismodel->INPmodType) {
                LITERR("incorrect model type")
                return;
            }
            mdfast = thismodel->INPmodfast;
            type = thismodel->INPmodType;
        } else {
            type = mytype;
            if(!tab->defRmod) {
                /* create default R model */
                IFnewUid(ckt,&uid,(IFuid)NULL,"R",UID_MODEL,(GENERIC**)NULL);
                IFC(newModel, (ckt,type,&(tab->defRmod),uid))
            }
            mdfast = tab->defRmod;
        }
        IFC(newInstance,(ckt,mdfast,&fast,name))
    } else  {
        type = mytype;
        if(!tab->defRmod) {
            /* create default R model */
            IFnewUid(ckt,&uid,(IFuid)NULL,"R",UID_MODEL,(GENERIC**)NULL);
            IFC(newModel, (ckt,type,&(tab->defRmod),uid))
        }
        IFC(newInstance,(ckt,tab->defRmod,&fast,name))
    }
    if(error1 == 0) { /* got a resistance above */
        ptemp.rValue = val;
        GCA(INPpName,("resistance",&ptemp,ckt,type,fast))
    }

    IFC(bindNode,(ckt,fast,1,node1))
    IFC(bindNode,(ckt,fast,2,node2))
    PARSECALL((&line,ckt,type,fast,&leadval,&waslead,tab))
    if(waslead) {
        ptemp.rValue = leadval;
        GCA(INPpName,("resistance",&ptemp,ckt,type,fast))
    }
    return;
}