// ################################################################################################# // # << NEORV32: neorv32_amo.h - CPU Core - Atomic Memory Access Emulation Functions >> # // # ********************************************************************************************* # // # BSD 3-Clause License # // # # // # Copyright (c) 2023, Stephan Nolting. All rights reserved. # // # # // # Redistribution and use in source and binary forms, with or without modification, are # // # permitted provided that the following conditions are met: # // # # // # 1. Redistributions of source code must retain the above copyright notice, this list of # // # conditions and the following disclaimer. # // # # // # 2. Redistributions in binary form must reproduce the above copyright notice, this list of # // # conditions and the following disclaimer in the documentation and/or other materials # // # provided with the distribution. # // # # // # 3. Neither the name of the copyright holder nor the names of its contributors may be used to # // # endorse or promote products derived from this software without specific prior written # // # permission. # // # # // # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS # // # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF # // # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # // # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # // # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE # // # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED # // # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # // # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED # // # OF THE POSSIBILITY OF SUCH DAMAGE. # // # ********************************************************************************************* # // # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting # // ################################################################################################# /**********************************************************************//** * @file neorv32_cpu_amo.h * @brief Atomic memory access (read-modify-write) emulation functions using LR/SC pairs - header file. **************************************************************************/ #ifndef neorv32_cpu_amo_h #define neorv32_cpu_amo_h // prototypes uint32_t neorv32_cpu_amoswapw(uint32_t addr, uint32_t wdata); uint32_t neorv32_cpu_amoaddw(uint32_t addr, uint32_t wdata); uint32_t neorv32_cpu_amoandw(uint32_t addr, uint32_t wdata); uint32_t neorv32_cpu_amoorw(uint32_t addr, uint32_t wdata); uint32_t neorv32_cpu_amoxorw(uint32_t addr, uint32_t wdata); int32_t neorv32_cpu_amomaxw(uint32_t addr, int32_t wdata); uint32_t neorv32_cpu_amomaxuw(uint32_t addr, uint32_t wdata); int32_t neorv32_cpu_amominw(uint32_t addr, int32_t wdata); uint32_t neorv32_cpu_amominuw(uint32_t addr, uint32_t wdata); #endif // neorv32_cpu_amo_h