riscvdefs.py

   1 """
   2 /*
   3  * Copyright 2018 Jacob Lifshay
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to deal
   7  * in the Software without restriction, including without limitation the rights
   8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  * copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in all
  13  * copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  */
  24 """
  25
  26 from migen import Constant
  27
  28 cause_instruction_address_misaligned = Constant(0x0, 4)
  29 cause_instruction_access_fault = Constant(0x1, 4)
  30 cause_illegal_instruction = Constant(0x2, 4)
  31 cause_breakpoint = Constant(0x3, 4)
  32 cause_load_address_misaligned = Constant(0x4, 4)
  33 cause_load_access_fault = Constant(0x5, 4)
  34 cause_store_amo_address_misaligned = Constant(0x6, 4)
  35 cause_store_amo_access_fault = Constant(0x7, 4)
  36 cause_user_environment_call = Constant(0x8, 4)
  37 cause_supervisor_environment_call = Constant(0x9, 4)
  38 cause_machine_environment_call = Constant(0xB, 4)
  39 cause_instruction_page_fault = Constant(0xC, 4)
  40 cause_load_page_fault = Constant(0xD, 4)
  41 cause_store_amo_page_fault = Constant(0xF, 4)
  42
  43 class OP:
  44     """  Opcode constants
  45     """
  46     load = Constant(0x03, 7)
  47     load_fp = Constant(0x07, 7)
  48     custom_0 = Constant(0x0B, 7)
  49     misc_mem = Constant(0x0F, 7)
  50     op_imm = Constant(0x13, 7)
  51     auipc = Constant(0x17, 7)
  52     op_imm_32 = Constant(0x1B, 7)
  53     op_48b_escape_0 = Constant(0x1F, 7)
  54
  55     store = Constant(0x23, 7)
  56     store_fp = Constant(0x27, 7)
  57     custom_1 = Constant(0x2B, 7)
  58     amo = Constant(0x2F, 7)
  59     op = Constant(0x33, 7)
  60     lui = Constant(0x37, 7)
  61     op_32 = Constant(0x3B, 7)
  62     op_64b_escape = Constant(0x3F, 7)
  63
  64     madd = Constant(0x43, 7)
  65     msub = Constant(0x47, 7)
  66     nmsub = Constant(0x4B, 7)
  67     nmadd = Constant(0x4F, 7)
  68     op_fp = Constant(0x53, 7)
  69     reserved_10101 = Constant(0x57, 7)
  70     rv128_0 = Constant(0x5B, 7)
  71     op_48b_escape_1 = Constant(0x5F, 7)
  72
  73     branch = Constant(0x63, 7)
  74     jalr = Constant(0x67, 7)
  75     reserved_11010 = Constant(0x6B, 7)
  76     jal = Constant(0x6F, 7)
  77     system = Constant(0x73, 7)
  78     reserved_11101 = Constant(0x77, 7)
  79     rv128_1 = Constant(0x7B, 7)
  80     op_80b_escape = Constant(0x7F, 7)
  81
  82 class F3:
  83     """ Funct3 constants
  84     """
  85     jalr = Constant(0x0, 3)
  86     beq = Constant(0x0, 3)
  87     bne = Constant(0x1, 3)
  88     blt = Constant(0x4, 3)
  89     bge = Constant(0x5, 3)
  90     bltu = Constant(0x6, 3)
  91     bgeu = Constant(0x7, 3)
  92
  93     lb = Constant(0x0, 3)
  94     lh = Constant(0x1, 3)
  95     lw = Constant(0x2, 3)
  96     lbu = Constant(0x4, 3)
  97     lhu = Constant(0x5, 3)
  98
  99     sb = Constant(0x0, 3)
 100     sh = Constant(0x1, 3)
 101     sw = Constant(0x2, 3)
 102
 103     addi = Constant(0x0, 3)
 104     slli = Constant(0x1, 3)
 105     slti = Constant(0x2, 3)
 106     sltiu = Constant(0x3, 3)
 107     xori = Constant(0x4, 3)
 108     srli_srai = Constant(0x5, 3)
 109     ori = Constant(0x6, 3)
 110     andi = Constant(0x7, 3)
 111
 112     add_sub = Constant(0x0, 3)
 113     sll = Constant(0x1, 3)
 114     slt = Constant(0x2, 3)
 115     sltu = Constant(0x3, 3)
 116     xor = Constant(0x4, 3)
 117     srl_sra = Constant(0x5, 3)
 118     _or = Constant(0x6, 3)
 119     _and = Constant(0x7, 3)
 120
 121     fence = Constant(0x0, 3)
 122     fence_i = Constant(0x1, 3)
 123
 124     ecall_ebreak = Constant(0x0, 3)
 125     csrrw = Constant(0x1, 3)
 126     csrrs = Constant(0x2, 3)
 127     csrrc = Constant(0x3, 3)
 128     csrrwi = Constant(0x5, 3)
 129     csrrsi = Constant(0x6, 3)
 130     csrrci = Constant(0x7, 3)
 131
 132 csr_ustatus = Constant(0x000, 12)
 133 csr_fflags = Constant(0x001, 12)
 134 csr_frm = Constant(0x002, 12)
 135 csr_fcsr = Constant(0x003, 12)
 136 csr_uie = Constant(0x004, 12)
 137 csr_utvec = Constant(0x005, 12)
 138 csr_uscratch = Constant(0x040, 12)
 139 csr_uepc = Constant(0x041, 12)
 140 csr_ucause = Constant(0x042, 12)
 141 csr_utval = Constant(0x043, 12)
 142 csr_uip = Constant(0x044, 12)
 143 csr_cycle = Constant(0xC00, 12)
 144 csr_time = Constant(0xC01, 12)
 145 csr_instret = Constant(0xC02, 12)
 146 csr_cycleh = Constant(0xC80, 12)
 147 csr_timeh = Constant(0xC81, 12)
 148 csr_instreth = Constant(0xC82, 12)
 149
 150 csr_sstatus = Constant(0x100, 12)
 151 csr_sedeleg = Constant(0x102, 12)
 152 csr_sideleg = Constant(0x103, 12)
 153 csr_sie = Constant(0x104, 12)
 154 csr_stvec = Constant(0x105, 12)
 155 csr_scounteren = Constant(0x106, 12)
 156 csr_sscratch = Constant(0x140, 12)
 157 csr_sepc = Constant(0x141, 12)
 158 csr_scause = Constant(0x142, 12)
 159 csr_stval = Constant(0x143, 12)
 160 csr_sip = Constant(0x144, 12)
 161 csr_satp = Constant(0x180, 12)
 162
 163 csr_mvendorid = Constant(0xF11, 12)
 164 csr_marchid = Constant(0xF12, 12)
 165 csr_mimpid = Constant(0xF13, 12)
 166 csr_mhartid = Constant(0xF14, 12)
 167 csr_mstatus = Constant(0x300, 12)
 168 csr_misa = Constant(0x301, 12)
 169 csr_medeleg = Constant(0x302, 12)
 170 csr_mideleg = Constant(0x303, 12)
 171 csr_mie = Constant(0x304, 12)
 172 csr_mtvec = Constant(0x305, 12)
 173 csr_mcounteren = Constant(0x306, 12)
 174 csr_mscratch = Constant(0x340, 12)
 175 csr_mepc = Constant(0x341, 12)
 176 csr_mcause = Constant(0x342, 12)
 177 csr_mtval = Constant(0x343, 12)
 178 csr_mip = Constant(0x344, 12)
 179 csr_mcycle = Constant(0xB00, 12)
 180 csr_minstret = Constant(0xB02, 12)
 181 csr_mcycleh = Constant(0xB80, 12)
 182 csr_minstreth = Constant(0xB82, 12)
 183
 184 csr_dcsr = Constant(0x7B0, 12)
 185 csr_dpc = Constant(0x7B1, 12)
 186 csr_dscratch = Constant(0x7B2, 12)
 187