| 1 |
72 |
zero_gravi |
// #################################################################################################
|
| 2 |
|
|
// # << NEORV32: neorv32_cfu.h - CPU Core - CFU Co-Processor Hardware Driver >> #
|
| 3 |
|
|
// # ********************************************************************************************* #
|
| 4 |
|
|
// # BSD 3-Clause License #
|
| 5 |
|
|
// # #
|
| 6 |
|
|
// # Copyright (c) 2022, Stephan Nolting. All rights reserved. #
|
| 7 |
|
|
// # #
|
| 8 |
|
|
// # Redistribution and use in source and binary forms, with or without modification, are #
|
| 9 |
|
|
// # permitted provided that the following conditions are met: #
|
| 10 |
|
|
// # #
|
| 11 |
|
|
// # 1. Redistributions of source code must retain the above copyright notice, this list of #
|
| 12 |
|
|
// # conditions and the following disclaimer. #
|
| 13 |
|
|
// # #
|
| 14 |
|
|
// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
|
| 15 |
|
|
// # conditions and the following disclaimer in the documentation and/or other materials #
|
| 16 |
|
|
// # provided with the distribution. #
|
| 17 |
|
|
// # #
|
| 18 |
|
|
// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
|
| 19 |
|
|
// # endorse or promote products derived from this software without specific prior written #
|
| 20 |
|
|
// # permission. #
|
| 21 |
|
|
// # #
|
| 22 |
|
|
// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
|
| 23 |
|
|
// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
|
| 24 |
|
|
// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
|
| 25 |
|
|
// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
|
| 26 |
|
|
// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
|
| 27 |
|
|
// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
|
| 28 |
|
|
// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
|
| 29 |
|
|
// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
|
| 30 |
|
|
// # OF THE POSSIBILITY OF SUCH DAMAGE. #
|
| 31 |
|
|
// # ********************************************************************************************* #
|
| 32 |
|
|
// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #
|
| 33 |
|
|
// #################################################################################################
|
| 34 |
|
|
|
| 35 |
|
|
|
| 36 |
|
|
/**********************************************************************//**
|
| 37 |
|
|
* @file neorv32_cpu_cfu.h
|
| 38 |
|
|
* @brief CPU Core custom functions unit HW driver header file.
|
| 39 |
|
|
**************************************************************************/
|
| 40 |
|
|
|
| 41 |
|
|
#ifndef neorv32_cpu_cfu_h
|
| 42 |
|
|
#define neorv32_cpu_cfu_h
|
| 43 |
|
|
|
| 44 |
|
|
// prototypes
|
| 45 |
|
|
int neorv32_cpu_cfu_available(void);
|
| 46 |
|
|
|
| 47 |
|
|
|
| 48 |
|
|
/**********************************************************************//**
|
| 49 |
74 |
zero_gravi |
* @name CFU custom instructions ("intrinsics")
|
| 50 |
72 |
zero_gravi |
**************************************************************************/
|
| 51 |
|
|
/**@{*/
|
| 52 |
|
|
/** CFU custom instruction 0 (funct3 = 000) */
|
| 53 |
|
|
#define neorv32_cfu_cmd0(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 0, RISCV_OPCODE_CUSTOM0)
|
| 54 |
|
|
/** CFU custom instruction 1 (funct3 = 001) */
|
| 55 |
|
|
#define neorv32_cfu_cmd1(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 1, RISCV_OPCODE_CUSTOM0)
|
| 56 |
|
|
/** CFU custom instruction 2 (funct3 = 010) */
|
| 57 |
|
|
#define neorv32_cfu_cmd2(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 2, RISCV_OPCODE_CUSTOM0)
|
| 58 |
|
|
/** CFU custom instruction 3 (funct3 = 011) */
|
| 59 |
|
|
#define neorv32_cfu_cmd3(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 3, RISCV_OPCODE_CUSTOM0)
|
| 60 |
|
|
/** CFU custom instruction 4 (funct3 = 100) */
|
| 61 |
|
|
#define neorv32_cfu_cmd4(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 4, RISCV_OPCODE_CUSTOM0)
|
| 62 |
|
|
/** CFU custom instruction 5 (funct3 = 101) */
|
| 63 |
|
|
#define neorv32_cfu_cmd5(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 5, RISCV_OPCODE_CUSTOM0)
|
| 64 |
|
|
/** CFU custom instruction 6 (funct3 = 110) */
|
| 65 |
|
|
#define neorv32_cfu_cmd6(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 6, RISCV_OPCODE_CUSTOM0)
|
| 66 |
|
|
/** CFU custom instruction 7 (funct3 = 111) */
|
| 67 |
|
|
#define neorv32_cfu_cmd7(funct7, rs1, rs2) CUSTOM_INSTR_R2_TYPE(funct7, rs2, rs1, 7, RISCV_OPCODE_CUSTOM0)
|
| 68 |
|
|
/**@}*/
|
| 69 |
|
|
|
| 70 |
|
|
#endif // neorv32_cpu_cfu_h
|
