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# smutool Tool for SMU
# Copyright (C) 2015 Damien Zammit <damien@zamaudio.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.
# See <http://www.gnu.org/licenses/>.
#
import sys
args=sys.argv
if len(sys.argv) == 1:
print "Usage: python signsmu.py <smu firmware>"
sys.exit()
def reverse(strs):
return ''.join([strs[i] for i in xrange(len(strs)-1, -1, -1)])
f = open(args[1], "rb")
firmware = bytearray()
try:
firmware = bytearray(f.read())
finally:
f.close()
for wcnt in range(0,len(firmware)/4):
tmp = firmware[wcnt*4]
firmware[wcnt*4] = firmware[wcnt*4+3]
firmware[wcnt*4+3] = tmp
tmp = firmware[wcnt*4+1]
firmware[wcnt*4+1] = firmware[wcnt*4+2]
firmware[wcnt*4+2] = tmp
sys.stdout.write(firmware)
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