Subversion Repositories hpc-16

#!/usr/bin/python

#--------------------------------------------------------------

#-- HPC-16 Assembler

#--------------------------------------------------------------

#-- project: HPC-16 Microprocessor

#--

#-- usage: HPC16_asm.py <input_file>

#--

#-- 

#--

#-- Author: M. Umair Siddiqui (umairsiddiqui@opencores.org)

#---------------------------------------------------------------

#------------------------------------------------------------------------------------

#--                                                                                --

#--    Copyright (c) 2015, M. Umair Siddiqui all rights reserved                   --

#--                                                                                --

#--    This file is part of HPC-16.                                                --

#--                                                                                --

#--    HPC-16 is free software; you can redistribute it and/or modify              --

#--    it under the terms of the GNU Lesser General Public License as published by --

#--    the Free Software Foundation; either version 2.1 of the License, or         --

#--    (at your option) any later version.                                         --

#--                                                                                --

#--    HPC-16 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 Lesser General Public License for more details.                         --

#--                                                                                --

#--    You should have received a copy of the GNU Lesser General Public License    --

#--    along with HPC-16; if not, write to the Free Software                       --

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

#--                                                                                --

#------------------------------------------------------------------------------------

from __future__ import print_function

import sys

import os

import re

from antlr4 import *

from HPC16Lexer import HPC16Lexer

from HPC16Parser import HPC16Parser

from MyHPC16Listener import MyHPC16Listener

from antlr4.error.ErrorStrategy import BailErrorStrategy

from antlr4.error.Errors import *

def start():

  if len(sys.argv) < 2:

    usage()

    sys.exit(1)

  input_stream = FileStream(sys.argv[1])

  a, _ = os.path.splitext(os.path.basename(sys.argv[1]))

  fout_name = a + "_asm_out.txt"

  fout = open(fout_name, 'w')

  lexer = HPC16Lexer(input_stream)

  token_stream = CommonTokenStream(lexer)

  parser = HPC16Parser(token_stream)

  parser._errHandler = BailErrorStrategy()

  try :

    tree = parser.prog()

    walker = ParseTreeWalker()

    walker.walk(MyHPC16Listener(fout), tree)

  except ParseCancellationException, e:

    print(sys.argv[0], "\nERROR Found invalid instruction\n in:", sys.argv[1], file=sys.stderr)

    fout.close()

  else:

    fout.close()

    mkrom_vhdl_sim(fout_name, a + "_init_ram.txt")

def mkrom_vhdl_sim(fin_name , fout_name):

  fin  = open(fin_name, 'r')

  fout = open(fout_name, 'w')

  lc = 0

  for line in fin:

    if not re.match("^#", line):

      b = "{:#018b}".format(int(line, 16))

      s = str(lc) + ":" + b[2:]

      print(s, file=fout)

      lc = lc + 1

  fin.close()

  fout.close()

def usage():

  print("usage:\n", sys.argv[0], "<input file>\n",  file=sys.stderr)

if __name__ == '__main__':

  start()