src/decoder/power_enums.py

   1 from enum import Enum, unique
   2 import csv
   3 import os
   4 import requests
   5
   6
   7 def get_csv(name):
   8     file_dir = os.path.dirname(os.path.realpath(__file__))
   9     file_path = os.path.join(file_dir, name)
  10     if not os.path.isfile(file_path):
  11         url = 'https://libre-riscv.org/openpower/isatables/' + name
  12         r = requests.get(url, allow_redirects=True)
  13         with open(file_path, 'w') as outfile:
  14             outfile.write(r.content.decode("utf-8"))
  15     with open(file_path, 'r') as csvfile:
  16         reader = csv.DictReader(csvfile)
  17         return list(reader)
  18
  19
  20 # names of the fields in the tables that don't correspond to an enum
  21 single_bit_flags = ['CR in', 'CR out', 'inv A', 'inv out',
  22                     'cry out', 'BR', 'sgn ext', 'upd', 'rsrv', '32b',
  23                     'sgn', 'lk', 'sgl pipe']
  24
  25
  26 def get_signal_name(name):
  27     return name.lower().replace(' ', '_')
  28
  29
  30 @unique
  31 class Function(Enum):
  32     NONE = 0
  33     ALU = 1
  34     LDST = 2
  35
  36
  37 @unique
  38 class InternalOp(Enum):
  39     OP_ILLEGAL = 0
  40     OP_NOP = 1
  41     OP_ADD = 2
  42     OP_ADDPCIS = 3
  43     OP_AND = 4
  44     OP_ATTN = 5
  45     OP_B = 6
  46     OP_BC = 7
  47     OP_BCREG = 8
  48     OP_BPERM = 9
  49     OP_CMP = 10
  50     OP_CMPB = 11
  51     OP_CMPEQB = 12
  52     OP_CMPRB = 13
  53     OP_CNTZ = 14
  54     OP_CRAND = 15
  55     OP_CRANDC = 16
  56     OP_CREQV = 17
  57     OP_CRNAND = 18
  58     OP_CRNOR = 19
  59     OP_CROR = 20
  60     OP_CRORC = 21
  61     OP_CRXOR = 22
  62     OP_DARN = 23
  63     OP_DCBF = 24
  64     OP_DCBST = 25
  65     OP_DCBT = 26
  66     OP_DCBTST = 27
  67     OP_DCBZ = 28
  68     OP_DIV = 29
  69     OP_DIVE = 30
  70     OP_EXTS = 31
  71     OP_EXTSWSLI = 32
  72     OP_ICBI = 33
  73     OP_ICBT = 34
  74     OP_ISEL = 35
  75     OP_ISYNC = 36
  76     OP_LOAD = 37
  77     OP_STORE = 38
  78     OP_MADDHD = 39
  79     OP_MADDHDU = 40
  80     OP_MADDLD = 41
  81     OP_MCRF = 42
  82     OP_MCRXR = 43
  83     OP_MCRXRX = 44
  84     OP_MFCR = 45
  85     OP_MFSPR = 46
  86     OP_MOD = 47
  87     OP_MTCRF = 48
  88     OP_MTSPR = 49
  89     OP_MUL_L64 = 50
  90     OP_MUL_H64 = 51
  91     OP_MUL_H32 = 52
  92     OP_OR = 53
  93     OP_POPCNT = 54
  94     OP_PRTY = 55
  95     OP_RLC = 56
  96     OP_RLCL = 57
  97     OP_RLCR = 58
  98     OP_SETB = 59
  99     OP_SHL = 60
 100     OP_SHR = 61
 101     OP_SYNC = 62
 102     OP_TD = 63
 103     OP_TDI = 64
 104     OP_TW = 65
 105     OP_TWI = 66
 106     OP_XOR = 67
 107     OP_SIM_CONFIG = 68
 108
 109
 110 @unique
 111 class In1Sel(Enum):
 112     RA = 0
 113     RA_OR_ZERO = 1
 114     NONE = 2
 115     SPR = 3
 116
 117
 118 @unique
 119 class In2Sel(Enum):
 120     NONE = 0
 121     RB = 1
 122     CONST_UI = 2
 123     CONST_SI = 3
 124     CONST_UI_HI = 4
 125     CONST_SI_HI = 5
 126     CONST_LI = 6
 127     CONST_BD = 7
 128     CONST_DS = 8
 129     CONST_M1 = 9
 130     CONST_SH = 10
 131     CONST_SH32 = 11
 132     SPR = 12
 133
 134
 135 @unique
 136 class In3Sel(Enum):
 137     NONE = 0
 138     RS = 1
 139
 140
 141 @unique
 142 class OutSel(Enum):
 143     NONE = 0
 144     RT = 1
 145     RA = 2
 146     SPR = 3
 147
 148
 149 @unique
 150 class LdstLen(Enum):
 151     NONE = 0
 152     is1B = 1
 153     is2B = 2
 154     is4B = 3
 155     is8B = 4
 156
 157
 158 @unique
 159 class RC(Enum):
 160     NONE = 0
 161     ONE = 1
 162     RC = 2
 163
 164
 165 @unique
 166 class CryIn(Enum):
 167     ZERO = 0
 168     ONE = 1
 169     CA = 2