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#!/usr/bin/env python
#
# Copyright 2014 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
def bitreverse(mint):
res = 0
while mint != 0:
res = res << 1
res += mint & 1
mint = mint >> 1
return res
const_lut = [2]
specinvert_lut = [[0, 2, 1, 3]]
def bitflip(mint, bitflip_lut, index, csize):
res = 0
cnt = 0
mask = (1 << const_lut[index]) - 1
while (cnt < csize):
res += (bitflip_lut[(mint >> cnt) & (mask)]) << cnt
cnt += const_lut[index]
return res
def read_bitlist(bitlist):
res = 0
for i in range(len(bitlist)):
if int(bitlist[i]) == 1:
res += 1 << (len(bitlist) - i - 1)
return res
def read_big_bitlist(bitlist):
ret = []
for j in range(0, len(bitlist) / 64):
res = 0
for i in range(0, 64):
if int(bitlist[j * 64 + i]) == 1:
res += 1 << (64 - i - 1)
ret.append(res)
res = 0
j = 0
for i in range(len(bitlist) % 64):
if int(bitlist[len(ret) * 64 + i]) == 1:
res += 1 << (64 - j - 1)
j += 1
ret.append(res)
return ret
def generate_symmetries(symlist):
retlist = []
if len(symlist) == 1:
for i in range(len(symlist[0])):
retlist.append(symlist[0][i:] + symlist[0][0:i])
invlist = symlist[0]
for i in range(1, len(symlist[0]) / 2):
invlist[i] = symlist[0][i + len(symlist[0]) / 2]
invlist[i + len(symlist[0]) / 2] = symlist[0][i]
for i in range(len(symlist[0])):
retlist.append(symlist[0][i:] + symlist[0][0:i])
return retlist
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