noccout.cpp

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#include <../../nmodlconf.h>

/* print the .c file from the lists */
#include "modl.h"
#include "parse1.hpp"
#include "symbol.h"

#define CACHEVEC 1

extern char* nmodl_version_;

#define P(arg) fputs(arg, fcout)
List           *procfunc, *initfunc, *modelfunc, *termfunc, *initlist, *firstlist;
/* firstlist gets statements that must go before anything else */

#if NMODL
List        *nrnstate;
extern List *currents, *set_ion_variables(int), *get_ion_variables(int);
extern List *begin_dion_stmt(), *end_dion_stmt(char*);
extern List* conductance_;
static void conductance_cout();
#endif

extern Symbol  *indepsym;
extern List    *indeplist;
extern List *match_bound;
extern List *defs_list;
extern char *saveindep;
char           *modelline;
extern int  brkpnt_exists;
extern int  artificial_cell;
extern int  net_receive_;
extern int  debugging_;
extern int  point_process;
extern int dtsav_for_nrn_state;

#if CVODE
extern Symbol* cvode_nrn_cur_solve_;
extern Symbol* cvode_nrn_current_solve_;
extern List* state_discon_list_;
#endif

/* VECTORIZE has not been optional for years. We leave the define there but */
/* we no longer update the #else clauses. */
#if VECTORIZE
extern int vectorize;
static List *vectorize_replacements; /* pairs of item pointer, strings */
extern char* cray_pragma();
extern int electrode_current; /* 1 means we should watch out for extracellular
                    and handle it correctly */
#endif

#if __TURBOC__ || SYSV || VMS
#define index strchr
#endif

static void initstates();
static void funcdec();

static void ext_vdef() {
    if (artificial_cell) { return; }
        if (electrode_current) {
            P("#if EXTRACELLULAR\n");
            P(" _nd = _ml->_nodelist[_iml];\n");
            P(" if (_nd->_extnode) {\n");
            P("    _v = NODEV(_nd) +_nd->_extnode->_v[0];\n");
            P(" }else\n");
            P("#endif\n");
            P(" {\n");
#if CACHEVEC == 0
            P("    _v = NODEV(_nd);\n");
#else
            P("#if CACHEVEC\n");
            P("  if (use_cachevec) {\n");
            P("    _v = VEC_V(_ni[_iml]);\n");
            P("  }else\n");
            P("#endif\n");
            P("  {\n");
            P("    _nd = _ml->_nodelist[_iml];\n");
            P("    _v = NODEV(_nd);\n");
            P("  }\n");
#endif
            
            P(" }\n");
        }else{
#if CACHEVEC == 0
            P(" _nd = _ml->_nodelist[_iml];\n");
            P(" _v = NODEV(_nd);\n");
#else
            P("#if CACHEVEC\n");
            P("  if (use_cachevec) {\n");
            P("    _v = VEC_V(_ni[_iml]);\n");
            P("  }else\n");
            P("#endif\n");
            P("  {\n");
            P("    _nd = _ml->_nodelist[_iml];\n");
            P("    _v = NODEV(_nd);\n");
            P("  }\n");
#endif
        }
}


/* when vectorize = 0 */
void c_out()
{
#if NMODL
    Item *q;
#endif

    Fprintf(fcout, "/* Created by Language version: %s */\n", nmodl_version_);
    Fflush(fcout);

#if VECTORIZE
    if (vectorize) {
        vectorize_do_substitute();
        kin_vect2();    /* heh, heh.. bet you can't guess what this is */
        c_out_vectorize();
        return;
    }
#endif
#if VECTORIZE
    P("/* NOT VECTORIZED */\n#define NRN_VECTORIZED 0\n");
#endif
    Fflush(fcout);
    /* things which must go first and most declarations */
#if SIMSYS
    P("#include <stdio.h>\n#include <stdlib.h>\n#include <math.h>\n#include \"mathlib.h\"\n");
    P("#include \"common.h\"\n#include \"softbus.h\"\n");
    P("#include \"sbtypes.h\"\n#include \"Solver.h\"\n");
#else
    P("#include <stdio.h>\n#include <stdlib.h>\n#include <math.h>\n#include \"scoplib.h\"\n");
    P("#undef PI\n");
    P("#define nil 0\n");
P("#include \"md1redef.h\"\n");
P("#include \"section.h\"\n");
P("#include \"nrniv_mf.h\"\n");
P("#include \"md2redef.h\"\n");

#endif
    printlist(defs_list);
    printlist(firstlist);
    P("static int _reset;\n");
#if NMODL
    P("static ");
#endif  
    if (modelline) {
        Fprintf(fcout, "char *modelname = \"%s\";\n\n", modelline);
    } else {
        Fprintf(fcout, "char *modelname = \"\";\n\n");
    }
    Fflush(fcout);      /* on certain internal errors partial output
                 * is helpful */
    P("static int error;\n");
#if NMODL
    P("static ");
#endif  
    P("int _ninits = 0;\n");
    P("static int _match_recurse=1;\n");
#if NMODL
    P("static void ");
#endif  
    P("_modl_cleanup(){ _match_recurse=1;}\n");
    /*
     * many machinations are required to make the infinite number of
     * definitions involving _p in defs.h to be invisible to the user 
     */
    /*
     * This one allows scop variables in functions which do not have the
     * p array as an argument 
     */
#if SIMSYS || HMODL || NMODL
#else
    P("static double *_p;\n\n");
#endif
    funcdec();
    Fflush(fcout);

    /*
     * translations of named blocks into functions, procedures, etc. Also
     * some special declarations used by some blocks 
     */
    printlist(procfunc);
    Fflush(fcout);

    /* Initialization function must always be present */
#if NMODL
    P("\nstatic void initmodel() {\n  int _i; double _save;");
#endif
#if SIMSYS || HMODL
    P("\ninitmodel() {\n  int _i; double _save;");
#endif
#if (!(SIMSYS || HMODL || NMODL))
    P("\ninitmodel(_pp) double _pp[]; {\n int _i; double _save; _p = _pp;");
#endif
#if !NMODL
    P("_initlists();\n");
#endif
    P("_ninits++;\n");
    P(saveindep); /*see solve.c; blank if not a time dependent process*/
    P("{\n");
    initstates();
    printlist(initfunc);
    if (match_bound) {
        P("\n_init_match(_save);");
    }
    P("\n}\n}\n");
    Fflush(fcout);

#if NMODL
    /* generation of initmodel interface */
#if VECTORIZE
    P("\nstatic void nrn_init(NrnThread* _nt, _Memb_list* _ml, int _type){\n");
      P("Node *_nd; double _v; int* _ni; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
#else
    P("\nstatic nrn_init(_prop, _v) Prop *_prop; double _v; {\n");
    P(" _p = _prop->param; _ppvar = _prop->dparam;\n");
#endif
    if (debugging_ && net_receive_) {
        P(" _tsav = -1e20;\n");
    }
    if (!artificial_cell) {ext_vdef();}
    if (!artificial_cell) {P(" v = _v;\n");}
    printlist(get_ion_variables(1));
    P(" initmodel();\n");
    printlist(set_ion_variables(2));
#if VECTORIZE
    P("}}\n");
#else
    P("}\n");
#endif

    /* standard modl EQUATION without solve computes current */
    P("\nstatic double _nrn_current(double _v){double _current=0.;v=_v;");
#if CVODE
    if (cvode_nrn_current_solve_) {
        fprintf(fcout, "if (cvode_active_) { %s(); }\n", cvode_nrn_current_solve_->name);
    }
#endif
    P("{");
    if (currents->next != currents) {
        printlist(modelfunc);
    }
    ITERATE(q, currents) {
        Sprintf(buf, " _current += %s;\n", SYM(q)->name);
        P(buf);
    }
    P("\n} return _current;\n}\n");

    /* For the classic BREAKPOINT block, the neuron current also has to compute the dcurrent/dv as well
       as make sure all currents accumulated properly (currents list) */

    if (brkpnt_exists) {
    P("\nstatic void nrn_cur(NrnThread* _nt, _Memb_list* _ml, int _type){\n");
      P("Node *_nd; int* _ni; double _rhs, _v; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
      ext_vdef();
    if (currents->next != currents) {
      printlist(get_ion_variables(0));
#if CVODE
      cvode_rw_cur(buf);
      P(buf);
    }
      if (cvode_nrn_cur_solve_) {
        fprintf(fcout, "if (cvode_active_) { %s(); }\n", cvode_nrn_cur_solve_->name);
      }
   if (currents->next != currents) {
#endif
      P(" _g = _nrn_current(_v + .001);\n");
      printlist(begin_dion_stmt());
    if (state_discon_list_) {
      P(" state_discon_flag_ = 1; _rhs = _nrn_current(_v); state_discon_flag_ = 0;\n");
    }else{
      P(" _rhs = _nrn_current(_v);\n");
    }
      printlist(end_dion_stmt(".001"));
      P(" _g = (_g - _rhs)/.001;\n");
      /* set the ion variable values */
      printlist(set_ion_variables(0));
      if (point_process) {
        P(" _g *=  1.e2/(_nd_area);\n");
        P(" _rhs *= 1.e2/(_nd_area);\n");
      }
    if (electrode_current) {
#if CACHEVEC == 0
        P(" NODERHS(_nd) += _rhs;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_RHS(_ni[_iml]) += _rhs;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODERHS(_nd) += _rhs;\n");
        P("  }\n");
        P("  if (_nt->_nrn_fast_imem) { _nt->_nrn_fast_imem->_nrn_sav_rhs[_ni[_iml]] += _rhs; }\n");
#endif
        P("#if EXTRACELLULAR\n");
        P(" if (_nd->_extnode) {\n");
        P("   *_nd->_extnode->_rhs[0] += _rhs;\n");
        P(" }\n");
        P("#endif\n");
    }else{
#if CACHEVEC == 0
        P(" NODERHS(_nd) -= _rhs;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_RHS(_ni[_iml]) -= _rhs;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODERHS(_nd) -= _rhs;\n");
        P("  }\n");
#endif
    }
   }
    P(" \n}}\n");

    /* for the classic breakpoint block, nrn_cur computed the conductance, _g,
       and now the jacobian calculation merely returns that */
    P("\nstatic void nrn_jacob(NrnThread* _nt, _Memb_list* _ml, int _type){\n");
      P("Node *_nd; int* _ni; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml];\n");
    if (electrode_current) {
        P(" _nd = _ml->_nodelist[_iml];\n");
#if CACHEVEC == 0
        P(" NODED(_nd) -= _g;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_D(_ni[_iml]) -= _g;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODED(_nd) -= _g;\n");
        P("  }\n");
        P("  if (_nt->_nrn_fast_imem) { _nt->_nrn_fast_imem->_nrn_sav_d[_ni[_iml]] -= _g; }\n");
#endif
        P("#if EXTRACELLULAR\n");
        P(" if (_nd->_extnode) {\n");
        P("   *_nd->_extnode->_d[0] += _g;\n");
        P(" }\n");
        P("#endif\n");
    }else{
#if CACHEVEC == 0
        P(" NODED(_nd) += _g;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_D(_ni[_iml]) += _g;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P("     _nd = _ml->_nodelist[_iml];\n");
        P(" NODED(_nd) += _g;\n");
        P("  }\n");
#endif
    }
    P(" \n}}\n");
    }

    /* nrnstate list contains the EQUATION solve statement so this
       advances states by dt */
#if VECTORIZE
    P("\nstatic void nrn_state(NrnThread* _nt, _Memb_list* _ml, int _type){\n");
#else
    P("\nstatic nrn_state(_prop, _v) Prop *_prop; double _v; {\n");
#endif
    if (nrnstate || currents->next == currents) {
#if VECTORIZE
      P("Node *_nd; double _v = 0.0; int* _ni; int _iml, _cntml;\n");
      if (dtsav_for_nrn_state && nrnstate) {
        P("double _dtsav = dt;\n"
          "if (secondorder) { dt *= 0.5; }\n");
      }
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
      P(" _nd = _ml->_nodelist[_iml];\n");
      ext_vdef();
#else
      P(" _p = _prop->param;  _ppvar = _prop->dparam;\n");
#endif
      P(" v=_v;\n{\n");
      printlist(get_ion_variables(1));
      if (nrnstate) {
          printlist(nrnstate);
      }
      if (currents->next == currents) {
        printlist(modelfunc);
      }
      printlist(set_ion_variables(1));
#if VECTORIZE
    P("}}\n");
#else
    P("}\n");
#endif
      if (dtsav_for_nrn_state && nrnstate) {
        P(" dt = _dtsav;");
      }
    }
    P("\n}\n");
#else
    /* Model function must always be present */
#if SIMSYS
    P("\nmodel() {\n");
    P("double _break, _save;\n{\n");
#else
    P("\nmodel(_pp, _indepindex) double _pp[]; int _indepindex; {\n");
    P("double _break, _save;");
#if HMODL
    P("\n{\n");
#else
    P("_p = _pp;\n{\n");
#endif
#endif
    printlist(modelfunc);
    P("\n}\n}\n");
    Fflush(fcout);
#endif

#if NMODL
    P("\nstatic void terminal(){}\n");
#else
    /* Terminal function must always be present */
#if SIMSYS || HMODL
    P("\nterminal() {");
    P("\n{\n");
#else
    P("\nterminal(_pp) double _pp[];{");
    P("_p = _pp;\n{\n");
#endif
    printlist(termfunc);
    P("\n}\n}\n");
    Fflush(fcout);
#endif

    /* initlists() is called once to setup slist and dlist pointers */
#if NMODL || SIMSYS || HMODL
    P("\nstatic void _initlists() {\n");
#else
    P("\n_initlists() {\n");
#endif
    P(" int _i; static int _first = 1;\n");
    P("  if (!_first) return;\n");
    printlist(initlist);
    P("_first = 0;\n}\n");
}

/*
 * One of the things initmodel() must do is initialize all states to the
 * value of state0.  This generated code goes before any explicit initialize
 * code written by the user. 
 */
static void initstates()
{
    int             i;
    Item           *qs;
    Symbol         *s;


    SYMITER_STAT {
#if NMODL
        /* ioni and iono should not have initialization lines */
#define IONCONC     010000
        if (s->nrntype & IONCONC) {
            continue;
        }
#endif
        Sprintf(buf, "%s0", s->name);
        if (lookup(buf)) {  /* if no constant associated
                     * with a state such as the
                     * ones automattically
                     * generated by SENS then
                     * there is no initialization
                     * line */
            if (s->subtype & ARRAY) {
                Fprintf(fcout,
                    " for (_i=0; _i<%d; _i++) %s[_i] = %s0;\n",
                          s->araydim, s->name, s->name);
            } else {
                Fprintf(fcout, "  %s = %s0;\n",
                    s->name, s->name);
            }
        }
    }
}

/*
 * here is the only place as of 18-apr-89 where we don't explicitly know the
 * type of a list element 
 */

static int newline, indent;

void printitem(Item* q) {
        if (q->itemtype == SYMBOL) {
            if (SYM(q)->type == SPECIAL) {
                switch (SYM(q)->subtype) {

                case SEMI:
                    newline = 1;
                    break;
                case BEGINBLK:
                    newline = 1;
                    indent++;
                    break;
                case ENDBLK:
                    newline = 1;
                    indent--;
                    break;
                }
            }
            Fprintf(fcout, " %s", SYM(q)->name);
        } else if (q->itemtype == VERBATIM) {
            verbatim_adjust(STR(q));
        } else if (q->itemtype == ITEM) {
            printitem(ITM(q));
        }else {
            Fprintf(fcout, " %s", STR(q));
        }
}

void debugprintitem(Item* q) {
        if (q->itemtype == SYMBOL) {
            printf("SYM %s\n", SYM(q)->name);
        } else if (q->itemtype == VERBATIM) {
            printf("VERB %s\n",STR(q));
        } else if (q->itemtype == ITEM) {
            printf("ITM ");
            debugprintitem(ITM(q));
        }else {
            printf("STR %s\n", STR(q));
        }
}

/* does not include q2 */
char* items_as_string(Item* q1, Item* q2) {
  Item* q;
  buf[0] = '\0';
  for (q = q1; q != q2; q = q->next) {
    if (buf[0] != '\0') {
      strcat(buf, " ");
    }
    if (q->itemtype == SYMBOL) {
      strcat(buf, SYM(q)->name);
    }else if (q->itemtype == STRING) {
      strcat(buf, STR(q));
    }else{
      assert(0);
    }
  }
  return strdup(buf);
}

void printlist(List* s)
{
    Item           *q;
    int i;
        newline = 0, indent = 0;
    /*
     * most of this is merely to decide where newlines and indentation
     * goes so that the .c file can be read if something goes wrong 
     */
    if (!s) {
        return;
    }
    ITERATE(q, s) {
        printitem(q);
        if (newline) {
            newline = 0;
            Fprintf(fcout, "\n");
            for (i = 0; i < indent; i++) {
                Fprintf(fcout, "  ");
            }
        }
    }
}

static void funcdec()
{
    int             i;
    Symbol         *s;
    List           *qs;
    int j, narg, more;

    SYMITER(NAME) {
        more = 0;
        /*EMPTY*/   /*maybe*/
        if (s->subtype & FUNCT) {
#define GLOBFUNCT 1
#if GLOBFUNCT && NMODL
#else
            Fprintf(fcout, "static double %s(", s->name);
            more = 1;
#endif
        }
        if (s->subtype & PROCED) {
            Fprintf(fcout, "static int %s(", s->name);
            more = 1;
        }
        if (more) {
            narg = s->varnum;
if (vectorize) {
            if (narg) {
                Fprintf(fcout, "_threadargsprotocomma_ ");
            }else{
                Fprintf(fcout, "_threadargsproto_");
            }
}
            /*loop over argcount and add ,double */
            if (narg > 0) { Fprintf(fcout, "double"); }
            for (j=1; j < narg; ++j) {
                Fprintf(fcout, ", double");
            }
            Fprintf(fcout,");\n");
        }
    }
}

#if VECTORIZE
/* when vectorize = 1 */
void c_out_vectorize()
{
    Item *q;
    
    /* things which must go first and most declarations */
    P("/* VECTORIZED */\n#define NRN_VECTORIZED 1\n");
    P("#include <stdio.h>\n#include <stdlib.h>\n#include <math.h>\n#include \"scoplib.h\"\n");
    P("#undef PI\n");
    P("#define nil 0\n");
P("#include \"md1redef.h\"\n");
P("#include \"section.h\"\n");
P("#include \"nrniv_mf.h\"\n");
P("#include \"md2redef.h\"\n");
    printlist(defs_list);
    printlist(firstlist);
    P("static int _reset;\n");
    if (modelline) {
        Fprintf(fcout, "static char *modelname = \"%s\";\n\n", modelline);
    } else {
        Fprintf(fcout, "static char *modelname = \"\";\n\n");
    }
    Fflush(fcout);      /* on certain internal errors partial output
                 * is helpful */
    P("static int error;\n");
    P("static int _ninits = 0;\n");
    P("static int _match_recurse=1;\n");
    P("static void _modl_cleanup(){ _match_recurse=1;}\n");

    funcdec();
    Fflush(fcout);

    /*
     * translations of named blocks into functions, procedures, etc. Also
     * some special declarations used by some blocks 
     */
    printlist(procfunc);
    Fflush(fcout);

    /* Initialization function must always be present */

    P("\nstatic void initmodel(double* _p, Datum* _ppvar, Datum* _thread, NrnThread* _nt) {\n  int _i; double _save;");
    P("{\n");
    initstates();
    printlist(initfunc);
    if (match_bound) {
        assert(!vectorize);
        P("\n_init_match(_save);");
    }
    P("\n}\n}\n");
    Fflush(fcout);

    /* generation of initmodel interface */
    P("\nstatic void nrn_init(NrnThread* _nt, _Memb_list* _ml, int _type){\n");
      P("double* _p; Datum* _ppvar; Datum* _thread;\n");
      P("Node *_nd; double _v; int* _ni; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("_thread = _ml->_thread;\n");
    /*check_tables();*/
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
    check_tables();
    if (debugging_ && net_receive_) {
        P(" _tsav = -1e20;\n");
    }
    if (!artificial_cell) {ext_vdef();}
    if (!artificial_cell) {P(" v = _v;\n");}
    printlist(get_ion_variables(1));
    P(" initmodel(_p, _ppvar, _thread, _nt);\n");
    printlist(set_ion_variables(2));
    P("}\n");
    P("}\n");

    /* standard modl EQUATION without solve computes current */
     if (!conductance_) {
    P("\nstatic double _nrn_current(double* _p, Datum* _ppvar, Datum* _thread, NrnThread* _nt, double _v){double _current=0.;v=_v;");
#if CVODE
    if (cvode_nrn_current_solve_) {
        fprintf(fcout, "if (cvode_active_) { %s(_p, _ppvar, _thread, _nt); }\n", cvode_nrn_current_solve_->name);
    }
#endif
    P("{");
    if (currents->next != currents) {
        printlist(modelfunc);
    }
    ITERATE(q, currents) {
        if (SYM(q) != breakpoint_current(SYM(q))) {
diag("current can only be LOCAL in a BREAKPOINT if CONDUCTANCE statements are used. ", SYM(q)->name);
        }
        Sprintf(buf, " _current += %s;\n", SYM(q)->name);
        P(buf);
    }
    P("\n} return _current;\n}\n");
     }

    /* For the classic BREAKPOINT block, the neuron current also has to compute the dcurrent/dv as well
       as make sure all currents accumulated properly (currents list) */

    if (brkpnt_exists) {
    P("\nstatic void nrn_cur(NrnThread* _nt, _Memb_list* _ml, int _type) {\n");
      P("double* _p; Datum* _ppvar; Datum* _thread;\n");
      P("Node *_nd; int* _ni; double _rhs, _v; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("_thread = _ml->_thread;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
      ext_vdef();
    if (currents->next != currents) {
      printlist(get_ion_variables(0));
#if CVODE
      cvode_rw_cur(buf);
      P(buf);
    }
      if (cvode_nrn_cur_solve_) {
        fprintf(fcout, "if (cvode_active_) { %s(_p, _ppvar, _thread, _nt); }\n", cvode_nrn_cur_solve_->name);
      }
   if (currents->next != currents) {
#endif
     if (conductance_) {
    P(" {\n");
      conductance_cout();
      printlist(set_ion_variables(0));
    P(" }\n");
     }else{
      P(" _g = _nrn_current(_p, _ppvar, _thread, _nt, _v + .001);\n");
      printlist(begin_dion_stmt());
    if (state_discon_list_) {
      P(" state_discon_flag_ = 1; _rhs = _nrn_current(_v); state_discon_flag_ = 0;\n");
    }else{
      P(" _rhs = _nrn_current(_p, _ppvar, _thread, _nt, _v);\n");
    }
      printlist(end_dion_stmt(".001"));
      P(" _g = (_g - _rhs)/.001;\n");
      /* set the ion variable values */
      printlist(set_ion_variables(0));
     } /* end of not conductance */
      if (point_process) {
        P(" _g *=  1.e2/(_nd_area);\n");
        P(" _rhs *= 1.e2/(_nd_area);\n");
      }
    if (electrode_current) {
#if CACHEVEC == 0
        P(" NODERHS(_nd) += _rhs;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_RHS(_ni[_iml]) += _rhs;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODERHS(_nd) += _rhs;\n");
        P("  }\n");
        P("  if (_nt->_nrn_fast_imem) { _nt->_nrn_fast_imem->_nrn_sav_rhs[_ni[_iml]] += _rhs; }\n");
#endif
        P("#if EXTRACELLULAR\n");
        P(" if (_nd->_extnode) {\n");
        P("   *_nd->_extnode->_rhs[0] += _rhs;\n");
        P(" }\n");
        P("#endif\n");
    }else{
#if CACHEVEC == 0
        P(" NODERHS(_nd) -= _rhs;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_RHS(_ni[_iml]) -= _rhs;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODERHS(_nd) -= _rhs;\n");
        P("  }\n");
#endif
    }
   }
    P(" \n}\n");
    P(" \n}\n");
    /* for the classic breakpoint block, nrn_cur computed the conductance, _g,
       and now the jacobian calculation merely returns that */
    P("\nstatic void nrn_jacob(NrnThread* _nt, _Memb_list* _ml, int _type) {\n");
      P("double* _p; Datum* _ppvar; Datum* _thread;\n");
      P("Node *_nd; int* _ni; int _iml, _cntml;\n");
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("_thread = _ml->_thread;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml];\n");
    if (electrode_current) {
        P(" _nd = _ml->_nodelist[_iml];\n");
#if CACHEVEC == 0
        P(" NODED(_nd) -= _g;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_D(_ni[_iml]) -= _g;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P(" NODED(_nd) -= _g;\n");
        P("  }\n");
        P("  if (_nt->_nrn_fast_imem) { _nt->_nrn_fast_imem->_nrn_sav_d[_ni[_iml]] -= _g; }\n");
#endif
        P("#if EXTRACELLULAR\n");
        P(" if (_nd->_extnode) {\n");
        P("   *_nd->_extnode->_d[0] += _g;\n");
        P(" }\n");
        P("#endif\n");
    }else{
#if CACHEVEC == 0
        P(" NODED(_nd) += _g;\n");
#else
        P("#if CACHEVEC\n");
        P("  if (use_cachevec) {\n");
        P(" VEC_D(_ni[_iml]) += _g;\n");
        P("  }else\n");
        P("#endif\n");
        P("  {\n");
        P("     _nd = _ml->_nodelist[_iml];\n");
        P(" NODED(_nd) += _g;\n");
        P("  }\n");
#endif
    }
    P(" \n}\n");
    P(" \n}\n");
    }

    /* nrnstate list contains the EQUATION solve statement so this
       advances states by dt */
    P("\nstatic void nrn_state(NrnThread* _nt, _Memb_list* _ml, int _type) {\n");
    if (nrnstate || currents->next == currents) {
      P("double* _p; Datum* _ppvar; Datum* _thread;\n");
      P("Node *_nd; double _v = 0.0; int* _ni; int _iml, _cntml;\n");
      if (dtsav_for_nrn_state && nrnstate) {
        P("double _dtsav = dt;\n"
          "if (secondorder) { dt *= 0.5; }\n");
      }
      P("#if CACHEVEC\n");
      P("    _ni = _ml->_nodeindices;\n");
      P("#endif\n");
      P("_cntml = _ml->_nodecount;\n");
      P("_thread = _ml->_thread;\n");
      P("for (_iml = 0; _iml < _cntml; ++_iml) {\n");
      P(" _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];\n");
      P(" _nd = _ml->_nodelist[_iml];\n");
      ext_vdef();
      P(" v=_v;\n{\n");
      printlist(get_ion_variables(1));
      if (nrnstate) {
          printlist(nrnstate);
      }
      if (currents->next == currents) {
        printlist(modelfunc);
      }
      printlist(set_ion_variables(1));
    P("}}\n");
      if (dtsav_for_nrn_state && nrnstate) {
        P(" dt = _dtsav;");
      }
    }
    P("\n}\n");

    P("\nstatic void terminal(){}\n");

    /* vectorized: data must have own copies of slist and dlist
       for now we don't vectorize if slist or dlist exists. Eventually
       must separate initialization of static things from vectorized
       things.
    */
    /* initlists() is called once to setup slist and dlist pointers */
    P("\nstatic void _initlists(){\n");
    P(" double _x; double* _p = &_x;\n");
    P(" int _i; static int _first = 1;\n");
    P("  if (!_first) return;\n");
    printlist(initlist);
    P("_first = 0;\n}\n");
    P("\n#if defined(__cplusplus)\n} /* extern \"C\" */\n#endif\n");
}

void vectorize_substitute(Item* q, char* str)
{
    if (!vectorize_replacements) {
        vectorize_replacements = newlist();
    }
    lappenditem(vectorize_replacements, q);
    lappendstr(vectorize_replacements, str);
}

Item* vectorize_replacement_item(Item* q) {
    Item* q1;
    if (vectorize_replacements) {
        ITERATE(q1, vectorize_replacements) {
            if (ITM(q1) == q) {
                return q1->next;
            }           
        }
    }
    return (Item*)0;
}

void vectorize_do_substitute() {
    Item *q, *q1;
    if (vectorize_replacements) {
        ITERATE(q, vectorize_replacements) {
            q1 = ITM(q);
            q = q->next;
            replacstr(q1, STR(q));
        }
    }
}

char* cray_pragma() {
    static char buf[] = "\
\n#if _CRAY\
\n#pragma _CRI ivdep\
\n#endif\
\n";
    return buf;
}

#endif /*VECTORIZE*/

static void conductance_cout() {
  int i=0;
  Item* q;
  List* m;

  /* replace v with _v */
  m = newlist();
  ITERATE(q, modelfunc) {
    if (q->itemtype == SYMBOL) {
      if (strcmp(SYM(q)->name, "v") == 0) {
        lappendstr(m, "_v");
      }else{
        lappendsym(m, SYM(q));
      }
    }else if (q->itemtype == STRING) {
      lappendstr(m, STR(q));
    }else{
      diag("modelfunc contains item which is not a SYMBOL or STRING", (char*)0);
    }
  }
  /* eliminate first { */
  ITERATE(q, m) {
    if (q->itemtype == SYMBOL) {
      if (strcmp(SYM(q)->name, "{") == 0) {
        remove(q);
        break;
      }
    }
  }
  /* eliminate last } */
  for (q = m->prev; q != m; q = q->prev) {
    if (q->itemtype == SYMBOL) {
      if (strcmp(SYM(q)->name, "}") == 0) {
        remove(q);
        break;
      }
    }
  }

  printlist(m);

  ITERATE(q, currents) {
    if (i == 0) {
      sprintf(buf, "  _rhs = %s", breakpoint_current(SYM(q))->name);
    }else{
      sprintf(buf, " + %s", breakpoint_current(SYM(q))->name);
    }
    P(buf);
    i += 1;
  }
  if (i > 0) {
    P(";\n");    
  }

  i = 0;
  ITERATE(q, conductance_) {
    if (i == 0) {
      sprintf(buf, "  _g = %s", SYM(q)->name);
    }else{
      sprintf(buf, " + %s", SYM(q)->name);
    }
    P(buf);
    i += 1;
    q = q->next;
  }
  if (i > 0) {
    P(";\n");
  }

  ITERATE(q, conductance_) {
    if (SYM(q->next)) {
      sprintf(buf, "  _ion_di%sdv += %s", SYM(q->next)->name, SYM(q)->name);
      P(buf);
      if (point_process) {
        P("* 1.e2/(_nd_area)");
      }
      P(";\n");
    }
    q = q->next;
  }
}