mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 03:30:02 +00:00
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/**
|
|
* Copyright (c) 2013 Tomas Dzetkulic
|
|
* Copyright (c) 2013 Pavol Rusnak
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
|
|
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "aux.h"
|
|
|
|
inline uint32_t ror(const uint32_t x, const int n)
|
|
{
|
|
return (x >> n) | (x << (32 - n));
|
|
}
|
|
|
|
inline uint32_t read_be(const uint8_t *data)
|
|
{
|
|
return (((uint32_t)data[0]) << 24) |
|
|
(((uint32_t)data[1]) << 16) |
|
|
(((uint32_t)data[2]) << 8) |
|
|
(((uint32_t)data[3]));
|
|
}
|
|
|
|
inline void write_be(uint8_t *data, uint32_t x)
|
|
{
|
|
data[0] = x >> 24;
|
|
data[1] = x >> 16;
|
|
data[2] = x >>8;
|
|
data[3] = x;
|
|
}
|