Subversion Repositories sc2v

/* -----------------------------------------------------------------------------

 *

 *  SystemC to Verilog Translator v0.4

 *  Provided by OpenSoc Design

 *

 *  www.opensocdesign.com

 *

 * -----------------------------------------------------------------------------

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU Library General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 */

%{

#include 

#include 

#include 

#include "sc2v_step2.h"

  char *enumname;

  int reading_enumerates = 0;

  int lineno = 1;

/*Multiple Declarations*/

  int multipledec;

  char *storedtype;

/* Global var to store process module name*/

  char *module_name;

  int module_name_found = 0;

/* Global var to store last port type*/

  char *lastportkind;

  int lastportsize;

  int activeport = 0;           // 1 -> reading port list

/* Global var to store last signal type*/

  int lastsignalsize;

  int signalactive = 0;

/* Global var to store last SC_METHOD found*/

  char *active_method;

  char *active_method_type;

  int method_found;

/* Global var to store last sensitivity found*/

  char *last_sensibility;

  int sensibility_active = 0;

/* Global var to store last function found*/

  char *functionname;

  int outputlenght = 0;

  int translate;

  void yyerror (const char *str)

  {

    fprintf (stderr, "line: %d error: %s\n", lineno, str);

  }

  int yywrap ()

  {

    return 1;

  }

  main ()

  {

    /*Initialize lists */

    writeslist = NULL;

    portlist = NULL;;

    signalslist = NULL;

    sensibilitylist = NULL;

    processlist = NULL;

    instanceslist = NULL;

    enumlistlist = NULL;

    funcinputslist = NULL;

    functionslist = NULL;

    translate = 1;

    fprintf (stderr, "\nSystemC to Verilog Translator v0.3\n\n");

    fprintf (stderr, "Parsing header file.......\n\n");

    FILE *yyin = stdin;

    FILE *yyout = stdout;

    yyparse ();

    printf ("module %s(", module_name);

    EnumeratePorts (portlist);

    printf (");\n");

    ShowPortList (portlist);

    printf ("\n");

    RegOutputs (portlist);

    printf ("\n");

    ShowEnumListList (enumlistlist);

    writeslist = ReadWritesFile (writeslist, (char *) "file_writes.sc2v");

    ShowSignalsList (signalslist, writeslist);

    printf ("\n");

    ShowInstancedModules (instanceslist);

    printf ("\n");

    ShowDefines ((char *) "file_defines.sc2v");

    ShowFunctionCode (functionslist);

    ShowProcessCode (processlist);

    printf ("\n");

    printf ("endmodule\n");

    fprintf (stderr, "\nDone\n");

  }

%}

%token NUMBER SC_MODULE WORD OPENPAR CLOSEPAR SC_IN SC_OUT SEMICOLON BOOL ENUM

%token MENOR MAYOR SC_REG SC_METHOD SENSITIVE_POS SENSITIVE_NEG SENSITIVE

%token SENSIBLE CLOSEKEY OPENKEY SEMICOLON COLON SC_SIGNAL ARROW EQUALS NEW QUOTE

%token SC_CTOR VOID ASTERISCO TRANSLATEON TRANSLATEOFF

%% commands:    /* empty */

|commands command;

command:

module

  |

  in_bool

  |

  in_sc_reg

  |

  out_bool

  |

  out_sc_reg

  |

  sc_method

  |

  sensitive_pos

  |

  sensitive_neg

  |

  sensitive

  |

  sensible_word_colon

  |

  sensible_word_semicolon

  |

  sensible_par_colon

  |

  sensible_par_pos

  |

  sensible_par_neg

  |

  closekey

  |

  word_semicolon

  |

  word_colon

  |

  word_closekey

  |

  word_closekey_word

  |

  signal_bool

  |

  signal_reg

  |

  instantation

  |

  port_binding

  |

  sc_ctor

  |

  void

  |inst_decl

  |

  closekey_semicolon

  |

  enumerates

  |

  enumerates_type

  |

  declaration

  |

  declaration_sc_signal

  |

  multiple_declaration

  |

  multiple_sc_signal_declaration

  |

  translateoff

  |

  translateon

  |

  function

  |

  functioninputs

  |

  finishfunctioninputs

  | boolfunction | boolfunctioninputs | boolfinishfunctioninputs;

module:

SC_MODULE OPENPAR WORD CLOSEPAR OPENKEY

{

  if (translate == 1)

    {

      if (module_name_found)

        {

          fprintf (stderr,

                   "line: %d error: two or more modules found in the file\n",

                   lineno);

          exit (1);

        }

      else

        {

          module_name = (char *) malloc (256 * sizeof (char));

          strcpy (module_name, (char *) $3);

          module_name_found = 1;

        }

    }

};

in_sc_reg:

SC_IN MENOR SC_REG MENOR NUMBER MAYOR MAYOR

{

  if (translate == 1)

    {

      activeport = 1;

      lastportsize = $5;

      lastportkind = (char *) "input";

    }

};

in_bool:

SC_IN MENOR BOOL MAYOR

{

  if (translate == 1)

    {

      activeport = 1;

      lastportsize = 0;

      lastportkind = (char *) "input";

    }

};

signal_bool:

SC_SIGNAL MENOR BOOL MAYOR

{

  if (translate == 1)

    {

      signalactive = 1;

      lastsignalsize = 0;

    }

};

signal_reg:

SC_SIGNAL MENOR SC_REG MENOR NUMBER MAYOR MAYOR

{

  if (translate == 1)

    {

      signalactive = 1;

      lastsignalsize = $5;

    }

};

out_bool:

SC_OUT MENOR BOOL MAYOR

{

  if (translate == 1)

    {

      activeport = 1;

      lastportsize = 0;

      lastportkind = (char *) "output";

    }

};

out_sc_reg:

SC_OUT MENOR SC_REG MENOR NUMBER MAYOR MAYOR

{

  if (translate == 1)

    {

      activeport = 1;

      lastportsize = $5;

      lastportkind = (char *) "output";

    }

};

sc_method:

SC_METHOD OPENPAR WORD CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      if (method_found)

        {

          processlist =

            InsertProcess (processlist, active_method, sensibilitylist,

                           active_method_type);

        }

      active_method = (char *) $3;

      method_found = 1;

      /* New sensitivity list */

      sensibilitylist = NULL;

    }

};

sensible_par_neg:

SENSITIVE_NEG OPENPAR WORD CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      active_method_type = (char *) "seq";      //comb

      sensibilitylist =

        InsertSensibility (sensibilitylist, (char *) $3, "negedge");

    }

};

sensible_par_pos:

SENSITIVE_POS OPENPAR WORD CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      active_method_type = (char *) "seq";      //comb

      sensibilitylist =

        InsertSensibility (sensibilitylist, (char *) $3, "posedge");

    }

};

sensitive_pos:

SENSITIVE_POS

{

  if (translate == 1)

    {

      last_sensibility = (char *) "posedge";

      active_method_type = (char *) "seq";      //seq

      sensibility_active = 1;

    }

};

sensitive_neg:

SENSITIVE_NEG

{

  if (translate == 1)

    {

      last_sensibility = (char *) "negedge";

      active_method_type = (char *) "seq";      //seq

      sensibility_active = 1;

    }

};

sensitive:

SENSITIVE

{

  if (translate == 1)

    {

      last_sensibility = (char *) " ";

      active_method_type = (char *) "comb";     //comb

      sensibility_active = 1;

    }

};

sensible_par_colon:

SENSITIVE OPENPAR WORD CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      active_method_type = (char *) "comb";     //comb

      sensibilitylist = InsertSensibility (sensibilitylist, (char *) $3, " ");

    }

};

sensible_word_colon:

SENSIBLE WORD

{

  if (translate == 1)

    {

      sensibilitylist =

        InsertSensibility (sensibilitylist, (char *) $2,

                           (char *) last_sensibility);

    }

};

sensible_word_semicolon:

SENSIBLE WORD SEMICOLON

{

  if (translate == 1)

    {

      sensibilitylist =

        InsertSensibility (sensibilitylist, (char *) $2,

                           (char *) last_sensibility);

      if (sensibility_active)

        {

          sensibility_active = 0;

        }

    }

};

closekey:

CLOSEKEY

{

  if (translate == 1)

    {

      if (method_found)

        {

          method_found = 0;

          processlist =

            InsertProcess (processlist, active_method, sensibilitylist,

                           active_method_type);

        }

    }

};

word_semicolon:

WORD SEMICOLON

{

  if (translate == 1)

    {

      if (activeport)

        {

          portlist =

            InsertPort (portlist, (char *) $1, lastportkind, lastportsize);

          activeport = 0;

        }

      else if (signalactive)

        {

          signalslist =

            InsertSignal (signalslist, (char *) $1, lastsignalsize);

          signalactive = 0;

        }

      else if (multipledec)

        {

          int length, list_pos;

          length = 0;

          list_pos = 0;

          //Look in the enumerated list if it was declared e.j state_t state;

          list_pos = findEnumList (enumlistlist, storedtype);

          if (list_pos > -1)

            {

              //Calculate the number of bits needed to represent the enumerate

              length = findEnumerateLength (enumlistlist, list_pos);

              signalslist = InsertSignal (signalslist, (char *) $1, length);

              writeslist = InsertWrite (writeslist, (char *) $1);

              free (storedtype);

              multipledec = 0;

            }

          else

            {

              fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                       (char *) $1);

              return (1);

            }

        }

    }

};

word_colon:

WORD COLON

{

  if (translate == 1)

    {

      if (activeport)

        {

          portlist =

            InsertPort (portlist, (char *) $1, lastportkind, lastportsize);

        }

      else if (signalactive)

        {

          signalslist =

            InsertSignal (signalslist, (char *) $1, lastsignalsize);

        }

      else if (reading_enumerates)

        {

          enumerateslist = InsertEnumerates (enumerateslist, (char *) $1);

        }

      else if (multipledec)

        {

          int length, list_pos;

          length = 0;

          list_pos = 0;

          //Look in the enumerated list if it was declared e.j state_t state;

          list_pos = findEnumList (enumlistlist, storedtype);

          if (list_pos > -1)

            {

              //Calculate the number of bits needed to represent the enumerate

              length = findEnumerateLength (enumlistlist, list_pos);

              signalslist = InsertSignal (signalslist, (char *) $1, length);

              writeslist = InsertWrite (writeslist, (char *) $1);

              multipledec = 1;

            }

          else

            {

              fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                       (char *) $1);

              return (1);

            }

        }

    }

};

word_closekey_word:

WORD CLOSEKEY WORD SEMICOLON

{

  if (translate == 1)

    {

      //Finish enumerate var declaration

      if (reading_enumerates)

        {

          enumerateslist = InsertEnumerates (enumerateslist, (char *) $1);

          enumlistlist = InsertEnumList (enumlistlist, enumerateslist, (char *) $4, 0); //Insert also the variable name

          reading_enumerates = 0;

        }

    }

};

word_closekey:

WORD CLOSEKEY SEMICOLON

{

  if (translate == 1)

    {

      //Finish enumerate type declaration

      if (reading_enumerates)

        {

          enumerateslist = InsertEnumerates (enumerateslist, (char *) $1);

          enumlistlist = InsertEnumList (enumlistlist, enumerateslist, enumname, 1);    //Insert also the variable name

          reading_enumerates = 0;

        }

    }

};

instantation:

WORD EQUALS NEW WORD OPENPAR QUOTE WORD QUOTE CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      instanceslist =

        InsertInstance (instanceslist, (char *) $1, (char *) $4);

    }

};

port_binding:

WORD ARROW WORD OPENPAR WORD CLOSEPAR SEMICOLON

{

  if (translate == 1)

    {

      if (instanceslist == NULL)

        {

          fprintf (stderr, "line: %d error: no instances found\n", lineno);

        }

      else

        {

          InstanceNode *ill;

          SGLIB_LIST_MAP_ON_ELEMENTS (InstanceNode, instanceslist, ill, next,

                                      {

                                      if (strcmp

                                          (ill->nameinstance,

                                           (char *) $1) == 0)

                                      {

                                      ill->bindslist =

                                      InsertBind (ill->bindslist, (char *) $3,

                                                  (char *) $5); break;}

                                      }

          );

        }

    }

};

sc_ctor:

SC_CTOR OPENPAR WORD CLOSEPAR OPENKEY

{

};

void:VOID WORD OPENPAR CLOSEPAR SEMICOLON

{

};

inst_decl:

WORD ASTERISCO WORD SEMICOLON

{

};

closekey_semicolon:CLOSEKEY SEMICOLON

{

};

enumerates:

ENUM OPENKEY

{

  if (translate == 1)

    {

      //New enumerate list

      enumerateslist = NULL;

      reading_enumerates = 1;

    }

};

enumerates_type:

ENUM WORD OPENKEY

{

  if (translate == 1)

    {

      //In this case we define type e.g. enum state_t {S0,S1,S2};

      enumerateslist = NULL;

      enumname = (char *) malloc (sizeof (char) * strlen ((char *) $2));

      strcpy (enumname, (char *) $2);

      reading_enumerates = 1;

    }

};

declaration:

WORD WORD SEMICOLON

{

  if (translate == 1)

    {

      int length, list_pos;

      length = 0;

      list_pos = 0;

      //Look in the enumerated list if it was declared e.j state_t state;

      list_pos = findEnumList (enumlistlist, (char *) $1);

      if (list_pos > -1)

        {

          //Calculate the number of bits needed to represent the enumerate

          length = findEnumerateLength (enumlistlist, list_pos);

          signalslist = InsertSignal (signalslist, (char *) $2, length);

          writeslist = InsertWrite (writeslist, (char *) $2);

        }

      else

        {

          fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                   (char *) $1);

          return (1);

        }

    }

};

declaration_sc_signal:

SC_SIGNAL MENOR WORD MAYOR WORD SEMICOLON

{

  if (translate == 1)

    {

      int length, list_pos;

      length = 0;

      list_pos = 0;

      //Look in the enumerated list if it was declared e.j state_t state;

      list_pos = findEnumList (enumlistlist, (char *) $3);

      if (list_pos > -1)

        {

          //Calculate the number of bits needed to represent the enumerate

          length = findEnumerateLength (enumlistlist, list_pos);

          signalslist = InsertSignal (signalslist, (char *) $5, length);

          writeslist = InsertWrite (writeslist, (char *) $5);

        }

      else

        {

          fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                   (char *) $3);

          return (1);

        }

    }

};

multiple_declaration:

WORD WORD COLON

{

  if (translate == 1)

    {

      int length, list_pos;

      length = 0;

      list_pos = 0;

      //Look in the enumerated list if it was declared e.j state_t state;

      list_pos = findEnumList (enumlistlist, (char *) $1);

      if (list_pos > -1)

        {

          //Calculate the number of bits needed to represent the enumerate

          length = findEnumerateLength (enumlistlist, list_pos);

          storedtype = (char *) malloc (sizeof (char) * strlen ((char *) $1));

          strcpy (storedtype, (char *) $1);

          signalslist = InsertSignal (signalslist, (char *) $2, length);

          writeslist = InsertWrite (writeslist, (char *) $2);

          multipledec = 1;

        }

      else

        {

          fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                   (char *) $1);

          return (1);

        }

    }

};

multiple_sc_signal_declaration:

SC_SIGNAL MENOR WORD MAYOR WORD COLON

{

  if (translate == 1)

    {

      int length, list_pos;

      length = 0;

      list_pos = 0;

      //Look in the enumerated list if it was declared e.j state_t state;

      list_pos = findEnumList (enumlistlist, (char *) $3);

      if (list_pos > -1)

        {

          //Calculate the number of bits needed to represent the enumerate

          length = findEnumerateLength (enumlistlist, list_pos);

          storedtype = (char *) malloc (sizeof (char) * strlen ((char *) $3));

          strcpy (storedtype, (char *) $3);

          signalslist = InsertSignal (signalslist, (char *) $5, length);

          writeslist = InsertWrite (writeslist, (char *) $5);

          multipledec = 1;

        }

      else

        {

          fprintf (stderr, "\nline: %d Type %s unknow\n", lineno,

                   (char *) $3);

          return (1);

        }

    }

};

translateoff:

TRANSLATEOFF

{

  translate = 0;

  fprintf (stderr, "line: %d Found Translate off directive \n", lineno);

};

translateon:

TRANSLATEON

{

  translate = 1;

  fprintf (stderr, "line: %d Found Translate on directive \n", lineno);

};

function:

SC_REG MENOR NUMBER MAYOR WORD OPENPAR

{

  fprintf (stderr, "line: %d Found Function Declaration \n", lineno);

  /* New inputs list */

  functionname = (char *) $5;

  outputlenght = $3;

  funcinputslist = NULL;

};

functioninputs:

SC_REG MENOR NUMBER MAYOR WORD COLON

{

  funcinputslist = InsertFunctionInput (funcinputslist, (char *) $5, $3);

};