mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-13 19:54:39 +00:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
} /* namespace jtag */
|