src/decoder/power_enums.py

   1 from enum import Enum, unique
   2 import csv
   3 import os
   4 import requests
   5
   6 def get_csv(name):
   7     file_dir = os.path.dirname(os.path.realpath(__file__))
   8     file_path = os.path.join(file_dir, name)
   9     if not os.path.isfile(file_path):
  10         url = 'https://libre-riscv.org/openpower/isatables/' + name
  11         r = requests.get(url, allow_redirects=True)
  12         with open(file_path, 'w') as outfile:
  13             outfile.write(r.content.decode("utf-8"))
  14     with open(file_path, 'r') as csvfile:
  15         reader = csv.DictReader(csvfile)
  16         return list(reader)
  17
  18 @unique
  19 class Function(Enum):
  20     ALU = 0
  21     LDST = 1
  22
  23
  24 @unique
  25 class InternalOp(Enum):
  26     OP_ADD = 0
  27     OP_AND = 1
  28     OP_B = 2
  29     OP_BC = 3
  30     OP_CMP = 4
  31     OP_LOAD = 5
  32     OP_MUL_L64 = 6
  33     OP_OR = 7
  34     OP_RLC = 8
  35     OP_STORE = 9
  36     OP_TDI = 10
  37     OP_XOR = 11
  38
  39
  40 @unique
  41 class In1Sel(Enum):
  42     RA = 0
  43     RA_OR_ZERO = 1
  44     NONE = 2
  45     SPR = 3
  46
  47
  48 @unique
  49 class In2Sel(Enum):
  50     CONST_SI = 0
  51     CONST_SI_HI = 1
  52     CONST_UI = 2
  53     CONST_UI_HI = 3
  54     CONST_LI = 4
  55     CONST_BD = 5
  56     CONST_SH32 = 6
  57     RB = 7
  58
  59
  60 @unique
  61 class In3Sel(Enum):
  62     NONE = 0
  63     RS = 1
  64
  65
  66 @unique
  67 class OutSel(Enum):
  68     RT = 0
  69     RA = 1
  70     NONE = 2
  71     SPR = 3
  72
  73
  74 @unique
  75 class LdstLen(Enum):
  76     NONE = 0
  77     is1B = 1
  78     is2B = 2
  79     is4B = 3
  80
  81
  82 @unique
  83 class RC(Enum):
  84     NONE = 0
  85     ONE = 1
  86     RC = 2
  87
  88
  89 @unique
  90 class CryIn(Enum):
  91     ZERO = 0
  92     ONE = 1
  93     CA = 2