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sdrangel/ft8/unpack0.cpp

64 lines
2.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Edouard Griffiths, F4EXB. //
// //
// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon //
// written by Robert Morris, AB1HL //
// reformatted and adapted to Qt and SDRangel context //
// //
// 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 as 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 V3 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "unpack0.h"
#include "unpack0.h"
namespace FT8 {
//
// turn bits into a 128-bit integer.
// most significant bit first.
//
boost::multiprecision::int128_t un128(int a77[], int start, int len)
{
boost::multiprecision::int128_t x = 0;
// assert(len < (int)sizeof(x) * 8 && start >= 0 && start + len <= 77);
for (int i = 0; i < len; i++)
{
x <<= 1;
x |= a77[start + i];
}
return x;
}
//
// turn bits into a 64-bit integer.
// most significant bit first.
//
uint64_t un64(int a77[], int start, int len)
{
uint64_t x = 0;
// assert(len < (int)sizeof(x) * 8 && start >= 0 && start + len <= 63);
for (int i = 0; i < len; i++)
{
x <<= 1;
x |= a77[start + i];
}
return x;
}
} // namespace FT8