openpower/isatables.mdwn

   1 # ISA Reference Tables
   2
   3 TODO
   4
   5 Based on Anton Blanchard's microwatt decode1.vhdl
   6
   7 # Major opcodes
   8
   9 decodes using f_in.insn(31 downto 26)
  10
  11 [[!table format=csv file="openpower/isatables/major.csv"]]
  12
  13 # Minor opcode 19
  14
  15 valid from table using f_in.insn(10 downto 1)
  16
  17 [[!table format=csv file="openpower/isatables/minor_19_valid.csv"]]
  18
  19 decodes using f_in.insn(5) & f_in.insn(3) & f_in.insn(2)
  20
  21 [[!table format=csv file="openpower/isatables/minor_19.csv"]]
  22
  23 # Minor opcode 30
  24
  25 decodes using f_in.insn(4 downto 1)
  26
  27 [[!table format=csv file="openpower/isatables/minor_30.csv"]]
  28
  29 # Minor opcode 31
  30
  31 decodes using f_in.insn(10 downto 1)
  32
  33 [[!table format=csv file="openpower/isatables/minor_31.csv"]]
  34
  35 # Minor opcode 58
  36
  37 decodes using f_in.insn(1 downto 0)
  38
  39 [[!table format=csv file="openpower/isatables/minor_58.csv"]]
  40
  41 # Minor opcode 62
  42
  43 decodes using f_in.insn(1 downto 0)
  44
  45 [[!table format=csv file="openpower/isatables/minor_62.csv"]]
  46
  47 # Extra opcodes
  48
  49 These can match against the (full) row[0] spec: nmigen Case supports "-" as
  50 "don't care"
  51
  52 [[!table format=csv file="openpower/isatables/extra.csv"]]
  53