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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* 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 2, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "jtag.hpp"
#include <cstdint>
#include <cstddef>
namespace jtag {
uint32_t JTAG::shift(const size_t count, uint32_t value) {
for (size_t i = 0; i < count; i++) {
const auto tdo = target.clock(
(i == (count - 1)) ? 1 : 0,
value & 1);
value >>= 1;
value |= tdo << (count - 1);
}
return value;
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}
} /* namespace jtag */