| /* |
| * Copyright (c) 2020 Raspberry Pi (Trading) Ltd. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef _PICO_BIT_OPS_H |
| #define _PICO_BIT_OPS_H |
| |
| #include "pico.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** \file bit_ops.h |
| * \defgroup pico_bit_ops pico_bit_ops |
| * |
| * Optimized bit manipulation functions. |
| * Additionally provides replacement implementations of the compiler built-ins __builtin_popcount, __builtin_clz |
| * and __bulitin_ctz |
| */ |
| |
| /*! \brief Reverse the bits in a 32 bit word |
| * \ingroup pico_bit_ops |
| * |
| * \param bits 32 bit input |
| * \return the 32 input bits reversed |
| */ |
| uint32_t __rev(uint32_t bits); |
| |
| /*! \brief Reverse the bits in a 64 bit double word |
| * \ingroup pico_bit_ops |
| * |
| * \param bits 64 bit input |
| * \return the 64 input bits reversed |
| */ |
| uint64_t __revll(uint64_t bits); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
