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#!/usr/bin/env python

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

# BIN to VHD converter                                                         #

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

# Copyright (C) 2011 Mathias Hoertnagl, mathias.hoertnagl@gmail.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 3 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 General Public License for     #

# more details.                                                                #

# You should have received a copy of the GNU General Public License along with #

# this program; if not, see <http://www.gnu.org/licenses/>.                    #

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

import sys

header = "\

library ieee;\n\

use ieee.std_logic_1164.all;\n\

use ieee.numeric_std.all;\n\

\n\

library work;\n\

use work.imem.all;\n\

\n\

package data is\n\

\n\

   constant data : mem_block_t := (\n"

if len(sys.argv) != 3:

   print "Usage: python", sys.argv[0], "<*.bin file>", "<destination folder>"

   sys.exit()

outp = {}

data = {}

data[0] = "      0 => (\n         "

data[1] = "      1 => (\n         "

data[2] = "      2 => (\n         "

data[3] = "      3 => (\n         "

print ""

print "************************************************************************"

print "* Memory File Generation                                               *"

print "************************************************************************"

print "Loading:", sys.argv[1]

inp = open(sys.argv[1], 'rb')

bin = inp.read()

inp.close()

# Outout name is fixed to make it automatically loadable.

outp = open(sys.argv[2] + 'data.vhd', 'w')

outp.write(header)

print "Writing memory file ..."

i = 3

j = 39

for c in bin:

   data[i] = data[i] + ('x"%02X", ' % ord(c))

   if j == 0:

      j = 39

      for k in range(4):

         data[k] = data[k] + "\n         "

   else:

      j = j - 1

   if i == 0:

      i = 3

   else:

      i = i-1

for i in range(3):

   data[i] = data[i] + 'others => x"00"\n      ),\n'

data[3] = data[3] + 'others => x"00"\n      )\n   );\n\nend data;'

for i in range(4):

   outp.write(data[i])

outp.close()

print "Done!"