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microwatt/decode1.vhdl

1164 lines
85 KiB
VHDL
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library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
use work.common.all;
use work.decode_types.all;
use work.insn_helpers.all;
entity decode1 is
generic (
HAS_FPU : boolean := true;
-- Non-zero to enable log data collection
LOG_LENGTH : natural := 0
);
port (
clk : in std_ulogic;
rst : in std_ulogic;
stall_in : in std_ulogic;
flush_in : in std_ulogic;
busy_out : out std_ulogic;
flush_out : out std_ulogic;
f_in : in IcacheToDecode1Type;
f_out : out Decode1ToFetch1Type;
d_out : out Decode1ToDecode2Type;
r_out : out Decode1ToRegisterFileType;
log_out : out std_ulogic_vector(12 downto 0)
);
end entity decode1;
architecture behaviour of decode1 is
type dc0_t is record
f_in : IcacheToDecode1Type;
use_row : std_ulogic;
br_pred : std_ulogic;
override : std_ulogic;
ov_insn : insn_code;
spr_info : spr_id;
ram_spr : ram_spr_info;
end record;
constant dc0_t_init : dc0_t :=
(f_in => IcacheToDecode1Init, ov_insn => INSN_illegal,
spr_info => spr_id_init, ram_spr => ram_spr_info_init,
others => '0');
signal dc0, dc0in : dc0_t;
signal r, rin : Decode1ToDecode2Type;
signal f, fin : Decode1ToFetch1Type;
type br_predictor_t is record
br_nia : std_ulogic_vector(61 downto 0);
br_offset : signed(23 downto 0);
predict : std_ulogic;
end record;
signal br, br_in : br_predictor_t;
signal maj_rom_addr : std_ulogic_vector(10 downto 0);
signal row_rom_addr : std_ulogic_vector(10 downto 0);
signal major_predecode : insn_code;
signal row_predecode : insn_code;
signal decode_rom_addr : insn_code;
signal decode : decode_rom_t;
signal rom_ce : std_ulogic;
type predecoder_rom_t is array(0 to 2047) of insn_code;
constant major_predecode_rom : predecoder_rom_t := (
2#001100_00000# to 2#001100_11111# => INSN_addic,
2#001101_00000# to 2#001101_11111# => INSN_addic_dot,
2#001110_00000# to 2#001110_11111# => INSN_addi,
2#001111_00000# to 2#001111_11111# => INSN_addis,
2#010011_00100# to 2#010011_00101# => INSN_addpcis,
2#011100_00000# to 2#011100_11111# => INSN_andi_dot,
2#011101_00000# to 2#011101_11111# => INSN_andis_dot,
2#000000_00000# => INSN_attn,
2#010010_00000# to 2#010010_11111# => INSN_b,
2#010000_00000# to 2#010000_11111# => INSN_bc,
2#001011_00000# to 2#001011_11111# => INSN_cmpi,
2#001010_00000# to 2#001010_11111# => INSN_cmpli,
2#100010_00000# to 2#100010_11111# => INSN_lbz,
2#100011_00000# to 2#100011_11111# => INSN_lbzu,
2#110010_00000# to 2#110010_11111# => INSN_lfd,
2#110011_00000# to 2#110011_11111# => INSN_lfdu,
2#110000_00000# to 2#110000_11111# => INSN_lfs,
2#110001_00000# to 2#110001_11111# => INSN_lfsu,
2#101010_00000# to 2#101010_11111# => INSN_lha,
2#101011_00000# to 2#101011_11111# => INSN_lhau,
2#101000_00000# to 2#101000_11111# => INSN_lhz,
2#101001_00000# to 2#101001_11111# => INSN_lhzu,
2#100000_00000# to 2#100000_11111# => INSN_lwz,
2#100001_00000# to 2#100001_11111# => INSN_lwzu,
2#000111_00000# to 2#000111_11111# => INSN_mulli,
2#011000_00000# to 2#011000_11111# => INSN_ori,
2#011001_00000# to 2#011001_11111# => INSN_oris,
2#010100_00000# to 2#010100_11111# => INSN_rlwimi,
2#010101_00000# to 2#010101_11111# => INSN_rlwinm,
2#010111_00000# to 2#010111_11111# => INSN_rlwnm,
2#010001_00000# to 2#010001_11111# => INSN_sc,
2#100110_00000# to 2#100110_11111# => INSN_stb,
2#100111_00000# to 2#100111_11111# => INSN_stbu,
2#110110_00000# to 2#110110_11111# => INSN_stfd,
2#110111_00000# to 2#110111_11111# => INSN_stfdu,
2#110100_00000# to 2#110100_11111# => INSN_stfs,
2#110101_00000# to 2#110101_11111# => INSN_stfsu,
2#101100_00000# to 2#101100_11111# => INSN_sth,
2#101101_00000# to 2#101101_11111# => INSN_sthu,
2#100100_00000# to 2#100100_11111# => INSN_stw,
2#100101_00000# to 2#100101_11111# => INSN_stwu,
2#001000_00000# to 2#001000_11111# => INSN_subfic,
2#000010_00000# to 2#000010_11111# => INSN_tdi,
2#000011_00000# to 2#000011_11111# => INSN_twi,
2#011010_00000# to 2#011010_11111# => INSN_xori,
2#011011_00000# to 2#011011_11111# => INSN_xoris,
-- major opcode 4
2#000100_10000# => INSN_maddhd,
2#000100_10001# => INSN_maddhdu,
2#000100_10011# => INSN_maddld,
-- major opcode 30
2#011110_01000# to 2#011110_01001# => INSN_rldic,
2#011110_01010# to 2#011110_01011# => INSN_rldic,
2#011110_00000# to 2#011110_00001# => INSN_rldicl,
2#011110_00010# to 2#011110_00011# => INSN_rldicl,
2#011110_00100# to 2#011110_00101# => INSN_rldicr,
2#011110_00110# to 2#011110_00111# => INSN_rldicr,
2#011110_01100# to 2#011110_01101# => INSN_rldimi,
2#011110_01110# to 2#011110_01111# => INSN_rldimi,
2#011110_10000# to 2#011110_10001# => INSN_rldcl,
2#011110_10010# to 2#011110_10011# => INSN_rldcr,
-- major opcode 58
2#111010_00000# => INSN_ld,
2#111010_00001# => INSN_ldu,
2#111010_00010# => INSN_lwa,
2#111010_00100# => INSN_ld,
2#111010_00101# => INSN_ldu,
2#111010_00110# => INSN_lwa,
2#111010_01000# => INSN_ld,
2#111010_01001# => INSN_ldu,
2#111010_01010# => INSN_lwa,
2#111010_01100# => INSN_ld,
2#111010_01101# => INSN_ldu,
2#111010_01110# => INSN_lwa,
2#111010_10000# => INSN_ld,
2#111010_10001# => INSN_ldu,
2#111010_10010# => INSN_lwa,
2#111010_10100# => INSN_ld,
2#111010_10101# => INSN_ldu,
2#111010_10110# => INSN_lwa,
2#111010_11000# => INSN_ld,
2#111010_11001# => INSN_ldu,
2#111010_11010# => INSN_lwa,
2#111010_11100# => INSN_ld,
2#111010_11101# => INSN_ldu,
2#111010_11110# => INSN_lwa,
-- major opcode 59
2#111011_00100# to 2#111011_00101# => INSN_fdivs,
2#111011_01000# to 2#111011_01001# => INSN_fsubs,
2#111011_01010# to 2#111011_01011# => INSN_fadds,
2#111011_01100# to 2#111011_01101# => INSN_fsqrts,
2#111011_10000# to 2#111011_10001# => INSN_fres,
2#111011_10010# to 2#111011_10011# => INSN_fmuls,
2#111011_10100# to 2#111011_10101# => INSN_frsqrtes,
2#111011_11000# to 2#111011_11001# => INSN_fmsubs,
2#111011_11010# to 2#111011_11011# => INSN_fmadds,
2#111011_11100# to 2#111011_11101# => INSN_fnmsubs,
2#111011_11110# to 2#111011_11111# => INSN_fnmadds,
-- major opcode 62
2#111110_00000# => INSN_std,
2#111110_00001# => INSN_stdu,
2#111110_00100# => INSN_std,
2#111110_00101# => INSN_stdu,
2#111110_01000# => INSN_std,
2#111110_01001# => INSN_stdu,
2#111110_01100# => INSN_std,
2#111110_01101# => INSN_stdu,
2#111110_10000# => INSN_std,
2#111110_10001# => INSN_stdu,
2#111110_10100# => INSN_std,
2#111110_10101# => INSN_stdu,
2#111110_11000# => INSN_std,
2#111110_11001# => INSN_stdu,
2#111110_11100# => INSN_std,
2#111110_11101# => INSN_stdu,
-- major opcode 63
2#111111_00100# to 2#111111_00101# => INSN_fdiv,
2#111111_01000# to 2#111111_01001# => INSN_fsub,
2#111111_01010# to 2#111111_01011# => INSN_fadd,
2#111111_01100# to 2#111111_01101# => INSN_fsqrt,
2#111111_01110# to 2#111111_01111# => INSN_fsel,
2#111111_10000# to 2#111111_10001# => INSN_fre,
2#111111_10010# to 2#111111_10011# => INSN_fmul,
2#111111_10100# to 2#111111_10101# => INSN_frsqrte,
2#111111_11000# to 2#111111_11001# => INSN_fmsub,
2#111111_11010# to 2#111111_11011# => INSN_fmadd,
2#111111_11100# to 2#111111_11101# => INSN_fnmsub,
2#111111_11110# to 2#111111_11111# => INSN_fnmadd,
others => INSN_illegal
);
constant row_predecode_rom : predecoder_rom_t := (
-- Major opcode 31
-- Address bits are 0, insn(10:1)
2#0_01000_01010# => INSN_add,
2#0_11000_01010# => INSN_add, -- addo
2#0_00000_01010# => INSN_addc,
2#0_10000_01010# => INSN_addc, -- addco
2#0_00100_01010# => INSN_adde,
2#0_10100_01010# => INSN_adde, -- addeo
2#0_00101_01010# => INSN_addex,
2#0_00010_01010# => INSN_addg6s,
2#0_00111_01010# => INSN_addme,
2#0_10111_01010# => INSN_addme, -- addmeo
2#0_00110_01010# => INSN_addze,
2#0_10110_01010# => INSN_addze, -- addzeo
2#0_00000_11100# => INSN_and,
2#0_00001_11100# => INSN_andc,
2#0_00111_11100# => INSN_bperm,
2#0_01001_11010# => INSN_cbcdtd,
2#0_01000_11010# => INSN_cdtbcd,
2#0_00000_00000# => INSN_cmp,
2#0_01111_11100# => INSN_cmpb,
2#0_00111_00000# => INSN_cmpeqb,
2#0_00001_00000# => INSN_cmpl,
2#0_00110_00000# => INSN_cmprb,
2#0_00001_11010# => INSN_cntlzd,
2#0_00000_11010# => INSN_cntlzw,
2#0_10001_11010# => INSN_cnttzd,
2#0_10000_11010# => INSN_cnttzw,
2#0_10111_10011# => INSN_darn,
2#0_00010_10110# => INSN_dcbf,
2#0_00001_10110# => INSN_dcbst,
2#0_01000_10110# => INSN_dcbt,
2#0_00111_10110# => INSN_dcbtst,
2#0_11111_10110# => INSN_dcbz,
2#0_01100_01001# => INSN_divdeu,
2#0_11100_01001# => INSN_divdeu, -- divdeuo
2#0_01100_01011# => INSN_divweu,
2#0_11100_01011# => INSN_divweu, -- divweuo
2#0_01101_01001# => INSN_divde,
2#0_11101_01001# => INSN_divde, -- divdeo
2#0_01101_01011# => INSN_divwe,
2#0_11101_01011# => INSN_divwe, -- divweo
2#0_01110_01001# => INSN_divdu,
2#0_11110_01001# => INSN_divdu, -- divduo
2#0_01110_01011# => INSN_divwu,
2#0_11110_01011# => INSN_divwu, -- divwuo
2#0_01111_01001# => INSN_divd,
2#0_11111_01001# => INSN_divd, -- divdo
2#0_01111_01011# => INSN_divw,
2#0_11111_01011# => INSN_divw, -- divwo
2#0_11001_10110# => INSN_nop, -- dss
2#0_01010_10110# => INSN_nop, -- dst
2#0_01011_10110# => INSN_nop, -- dstst
2#0_11010_10110# => INSN_eieio,
2#0_01000_11100# => INSN_eqv,
2#0_11101_11010# => INSN_extsb,
2#0_11100_11010# => INSN_extsh,
2#0_11110_11010# => INSN_extsw,
2#0_11011_11010# => INSN_extswsli,
2#0_11011_11011# => INSN_extswsli,
2#0_11110_10110# => INSN_icbi,
2#0_00000_10110# => INSN_icbt,
2#0_00000_01111# => INSN_isel,
2#0_00001_01111# => INSN_isel,
2#0_00010_01111# => INSN_isel,
2#0_00011_01111# => INSN_isel,
2#0_00100_01111# => INSN_isel,
2#0_00101_01111# => INSN_isel,
2#0_00110_01111# => INSN_isel,
2#0_00111_01111# => INSN_isel,
2#0_01000_01111# => INSN_isel,
2#0_01001_01111# => INSN_isel,
2#0_01010_01111# => INSN_isel,
2#0_01011_01111# => INSN_isel,
2#0_01100_01111# => INSN_isel,
2#0_01101_01111# => INSN_isel,
2#0_01110_01111# => INSN_isel,
2#0_01111_01111# => INSN_isel,
2#0_10000_01111# => INSN_isel,
2#0_10001_01111# => INSN_isel,
2#0_10010_01111# => INSN_isel,
2#0_10011_01111# => INSN_isel,
2#0_10100_01111# => INSN_isel,
2#0_10101_01111# => INSN_isel,
2#0_10110_01111# => INSN_isel,
2#0_10111_01111# => INSN_isel,
2#0_11000_01111# => INSN_isel,
2#0_11001_01111# => INSN_isel,
2#0_11010_01111# => INSN_isel,
2#0_11011_01111# => INSN_isel,
2#0_11100_01111# => INSN_isel,
2#0_11101_01111# => INSN_isel,
2#0_11110_01111# => INSN_isel,
2#0_11111_01111# => INSN_isel,
2#0_00001_10100# => INSN_lbarx,
2#0_11010_10101# => INSN_lbzcix,
2#0_00011_10111# => INSN_lbzux,
2#0_00010_10111# => INSN_lbzx,
2#0_00010_10100# => INSN_ldarx,
2#0_10000_10100# => INSN_ldbrx,
2#0_11011_10101# => INSN_ldcix,
2#0_00001_10101# => INSN_ldux,
2#0_00000_10101# => INSN_ldx,
2#0_10010_10111# => INSN_lfdx,
2#0_10011_10111# => INSN_lfdux,
2#0_11010_10111# => INSN_lfiwax,
2#0_11011_10111# => INSN_lfiwzx,
2#0_10000_10111# => INSN_lfsx,
2#0_10001_10111# => INSN_lfsux,
2#0_00011_10100# => INSN_lharx,
2#0_01011_10111# => INSN_lhaux,
2#0_01010_10111# => INSN_lhax,
2#0_11000_10110# => INSN_lhbrx,
2#0_11001_10101# => INSN_lhzcix,
2#0_01001_10111# => INSN_lhzux,
2#0_01000_10111# => INSN_lhzx,
2#0_00000_10100# => INSN_lwarx,
2#0_01011_10101# => INSN_lwaux,
2#0_01010_10101# => INSN_lwax,
2#0_10000_10110# => INSN_lwbrx,
2#0_11000_10101# => INSN_lwzcix,
2#0_00001_10111# => INSN_lwzux,
2#0_00000_10111# => INSN_lwzx,
2#0_10010_00000# => INSN_mcrxrx,
2#0_00000_10011# => INSN_mfcr,
2#0_00010_10011# => INSN_mfmsr,
2#0_01010_10011# => INSN_mfspr,
2#0_01000_01001# => INSN_modud,
2#0_01000_01011# => INSN_moduw,
2#0_11000_01001# => INSN_modsd,
2#0_11000_01011# => INSN_modsw,
2#0_00100_10000# => INSN_mtcrf,
2#0_00100_10010# => INSN_mtmsr,
2#0_00101_10010# => INSN_mtmsrd,
2#0_01110_10011# => INSN_mtspr,
2#0_00010_01001# => INSN_mulhd,
2#0_00000_01001# => INSN_mulhdu,
2#0_00010_01011# => INSN_mulhw,
2#0_00000_01011# => INSN_mulhwu,
-- next 4 have reserved bit set
2#0_10010_01001# => INSN_mulhd,
2#0_10000_01001# => INSN_mulhdu,
2#0_10010_01011# => INSN_mulhw,
2#0_10000_01011# => INSN_mulhwu,
2#0_00111_01001# => INSN_mulld,
2#0_10111_01001# => INSN_mulld, -- mulldo
2#0_00111_01011# => INSN_mullw,
2#0_10111_01011# => INSN_mullw, -- mullwo
2#0_01110_11100# => INSN_nand,
2#0_00011_01000# => INSN_neg,
2#0_10011_01000# => INSN_neg, -- nego
-- next 8 are reserved no-op instructions
2#0_10000_10010# => INSN_nop,
2#0_10001_10010# => INSN_nop,
2#0_10010_10010# => INSN_nop,
2#0_10011_10010# => INSN_nop,
2#0_10100_10010# => INSN_nop,
2#0_10101_10010# => INSN_nop,
2#0_10110_10010# => INSN_nop,
2#0_10111_10010# => INSN_nop,
2#0_00011_11100# => INSN_nor,
2#0_01101_11100# => INSN_or,
2#0_01100_11100# => INSN_orc,
2#0_00011_11010# => INSN_popcntb,
2#0_01111_11010# => INSN_popcntd,
2#0_01011_11010# => INSN_popcntw,
2#0_00101_11010# => INSN_prtyd,
2#0_00100_11010# => INSN_prtyw,
2#0_00100_00000# => INSN_setb,
2#0_01111_10010# => INSN_slbia,
2#0_00000_11011# => INSN_sld,
2#0_00000_11000# => INSN_slw,
2#0_11000_11010# => INSN_srad,
2#0_11001_11010# => INSN_sradi,
2#0_11001_11011# => INSN_sradi,
2#0_11000_11000# => INSN_sraw,
2#0_11001_11000# => INSN_srawi,
2#0_10000_11011# => INSN_srd,
2#0_10000_11000# => INSN_srw,
2#0_11110_10101# => INSN_stbcix,
2#0_10101_10110# => INSN_stbcx,
2#0_00111_10111# => INSN_stbux,
2#0_00110_10111# => INSN_stbx,
2#0_10100_10100# => INSN_stdbrx,
2#0_11111_10101# => INSN_stdcix,
2#0_00110_10110# => INSN_stdcx,
2#0_00101_10101# => INSN_stdux,
2#0_00100_10101# => INSN_stdx,
2#0_10110_10111# => INSN_stfdx,
2#0_10111_10111# => INSN_stfdux,
2#0_11110_10111# => INSN_stfiwx,
2#0_10100_10111# => INSN_stfsx,
2#0_10101_10111# => INSN_stfsux,
2#0_11100_10110# => INSN_sthbrx,
2#0_11101_10101# => INSN_sthcix,
2#0_10110_10110# => INSN_sthcx,
2#0_01101_10111# => INSN_sthux,
2#0_01100_10111# => INSN_sthx,
2#0_10100_10110# => INSN_stwbrx,
2#0_11100_10101# => INSN_stwcix,
2#0_00100_10110# => INSN_stwcx,
2#0_00101_10111# => INSN_stwux,
2#0_00100_10111# => INSN_stwx,
2#0_00001_01000# => INSN_subf,
2#0_10001_01000# => INSN_subf, -- subfo
2#0_00000_01000# => INSN_subfc,
2#0_10000_01000# => INSN_subfc, -- subfco
2#0_00100_01000# => INSN_subfe,
2#0_10100_01000# => INSN_subfe, -- subfeo
2#0_00111_01000# => INSN_subfme,
2#0_10111_01000# => INSN_subfme, -- subfmeo
2#0_00110_01000# => INSN_subfze,
2#0_10110_01000# => INSN_subfze, -- subfzeo
2#0_10010_10110# => INSN_sync,
2#0_00010_00100# => INSN_td,
2#0_00000_00100# => INSN_tw,
2#0_01001_10010# => INSN_tlbie,
2#0_01000_10010# => INSN_tlbiel,
2#0_10001_10110# => INSN_tlbsync,
2#0_00000_11110# => INSN_wait,
2#0_01001_11100# => INSN_xor,
-- Major opcode 19
-- Columns with insn(4) = '1' are all illegal and not mapped here; to
-- fit into 2048 entries, the columns are remapped so that 16-24 are
-- stored here as 8-15; in other words the address bits are
-- 1, insn(10..6), 1, insn(5), insn(3..1)
2#1_10000_11000# => INSN_bcctr,
2#1_00000_11000# => INSN_bclr,
2#1_10001_11000# => INSN_bctar,
2#1_01000_10001# => INSN_crand,
2#1_00100_10001# => INSN_crandc,
2#1_01001_10001# => INSN_creqv,
2#1_00111_10001# => INSN_crnand,
2#1_00001_10001# => INSN_crnor,
2#1_01110_10001# => INSN_cror,
2#1_01101_10001# => INSN_crorc,
2#1_00110_10001# => INSN_crxor,
2#1_00100_11110# => INSN_isync,
2#1_00000_10000# => INSN_mcrf,
2#1_00000_11010# => INSN_rfid,
-- Major opcode 59
-- Only column 14 is valid here; columns 16-31 are handled in the major table
-- Column 14 is mapped to column 6 of the space which is
-- mostly used for opcode 19.
2#1_11010_10110# => INSN_fcfids,
2#1_11110_10110# => INSN_fcfidus,
-- Major opcode 63
-- Columns 0-15 are mapped here; columns 16-31 are in the major table.
-- Address bits are 1, insn(10:6), 0, insn(4:1)
2#1_00000_00000# => INSN_fcmpu,
2#1_00001_00000# => INSN_fcmpo,
2#1_00010_00000# => INSN_mcrfs,
2#1_00100_00000# => INSN_ftdiv,
2#1_00101_00000# => INSN_ftsqrt,
2#1_00001_00110# => INSN_mtfsb,
2#1_00010_00110# => INSN_mtfsb,
2#1_00100_00110# => INSN_mtfsfi,
2#1_11010_00110# => INSN_fmrgow,
2#1_11110_00110# => INSN_fmrgew,
2#1_10010_00111# => INSN_mffs,
2#1_10110_00111# => INSN_mtfsf,
2#1_00000_01000# => INSN_fcpsgn,
2#1_00001_01000# => INSN_fneg,
2#1_00010_01000# => INSN_fmr,
2#1_00100_01000# => INSN_fnabs,
2#1_01000_01000# => INSN_fabs,
2#1_01100_01000# => INSN_frin,
2#1_01101_01000# => INSN_friz,
2#1_01110_01000# => INSN_frip,
2#1_01111_01000# => INSN_frim,
2#1_00000_01100# => INSN_frsp,
2#1_00000_01110# => INSN_fctiw,
2#1_00100_01110# => INSN_fctiwu,
2#1_11001_01110# => INSN_fctid,
2#1_11010_01110# => INSN_fcfid,
2#1_11101_01110# => INSN_fctidu,
2#1_11110_01110# => INSN_fcfidu,
2#1_00000_01111# => INSN_fctiwz,
2#1_00100_01111# => INSN_fctiwuz,
2#1_11001_01111# => INSN_fctidz,
2#1_11101_01111# => INSN_fctiduz,
others => INSN_illegal
);
-- If we have an FPU, then it is used for integer divisions,
-- otherwise a dedicated divider in the ALU is used.
function divider_unit(hf : boolean) return unit_t is
begin
if hf then
return FPU;
else
return ALU;
end if;
end;
constant DVU : unit_t := divider_unit(HAS_FPU);
type decoder_rom_t is array(insn_code) of decode_rom_t;
constant decode_rom : decoder_rom_t := (
-- unit fac internal in1 in2 in3 out CR CR inv inv cry cry ldst BR sgn upd rsrv 32b sgn rc lk sgl rpt
-- op in out A out in out len ext pipe
INSN_illegal => (NONE, NONE, OP_ILLEGAL, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_fetch_fail => (LDST, NONE, OP_FETCH_FAILED, CIA, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_add => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_addc => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_adde => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '0', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_addex => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '0', '0', OV, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_addg6s => (ALU, NONE, OP_ADDG6S, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_addi => (ALU, NONE, OP_ADD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_addic => (ALU, NONE, OP_ADD, RA, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_addic_dot => (ALU, NONE, OP_ADD, RA, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '0', NONE),
INSN_addis => (ALU, NONE, OP_ADD, RA_OR_ZERO, CONST_SI_HI, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_addme => (ALU, NONE, OP_ADD, RA, CONST_M1, NONE, RT, '0', '0', '0', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_addpcis => (ALU, NONE, OP_ADD, CIA, CONST_DXHI4, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_addze => (ALU, NONE, OP_ADD, RA, NONE, NONE, RT, '0', '0', '0', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_and => (ALU, NONE, OP_AND, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_andc => (ALU, NONE, OP_AND, NONE, RB, RS, RA, '0', '0', '1', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_andi_dot => (ALU, NONE, OP_AND, NONE, CONST_UI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '0', NONE),
INSN_andis_dot => (ALU, NONE, OP_AND, NONE, CONST_UI_HI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '0', NONE),
INSN_attn => (ALU, NONE, OP_ATTN, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE),
INSN_b => (ALU, NONE, OP_B, NONE, CONST_LI, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '0', NONE),
INSN_bc => (ALU, NONE, OP_BC, NONE, CONST_BD, NONE, NONE, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '0', NONE),
INSN_bcctr => (ALU, NONE, OP_BCREG, NONE, NONE, NONE, NONE, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '0', NONE),
INSN_bclr => (ALU, NONE, OP_BCREG, NONE, NONE, NONE, NONE, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '0', NONE),
INSN_bctar => (ALU, NONE, OP_BCREG, NONE, NONE, NONE, NONE, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '0', NONE),
INSN_bperm => (ALU, NONE, OP_BPERM, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cbcdtd => (ALU, NONE, OP_BCD, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cdtbcd => (ALU, NONE, OP_BCD, NONE, NONE, RS, RA, '0', '0', '1', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cmp => (ALU, NONE, OP_CMP, RA, RB, NONE, NONE, '0', '1', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_cmpb => (ALU, NONE, OP_CMPB, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cmpeqb => (ALU, NONE, OP_CMPEQB, RA, RB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cmpi => (ALU, NONE, OP_CMP, RA, CONST_SI, NONE, NONE, '0', '1', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_cmpl => (ALU, NONE, OP_CMP, RA, RB, NONE, NONE, '0', '1', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cmpli => (ALU, NONE, OP_CMP, RA, CONST_UI, NONE, NONE, '0', '1', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cmprb => (ALU, NONE, OP_CMPRB, RA, RB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cntlzd => (ALU, NONE, OP_CNTZ, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_cntlzw => (ALU, NONE, OP_CNTZ, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_cnttzd => (ALU, NONE, OP_CNTZ, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_cnttzw => (ALU, NONE, OP_CNTZ, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_crand => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_crandc => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_creqv => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_crnand => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_crnor => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_cror => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_crorc => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_crxor => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_darn => (ALU, NONE, OP_DARN, NONE, NONE, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_dcbf => (ALU, NONE, OP_DCBF, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_dcbst => (ALU, NONE, OP_DCBST, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_dcbt => (ALU, NONE, OP_DCBT, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_dcbtst => (ALU, NONE, OP_DCBTST, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_dcbz => (LDST, NONE, OP_DCBZ, RA_OR_ZERO, RB, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_divd => (DVU, NONE, OP_DIV, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_divde => (DVU, NONE, OP_DIVE, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_divdeu => (DVU, NONE, OP_DIVE, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_divdu => (DVU, NONE, OP_DIV, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_divw => (DVU, NONE, OP_DIV, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_divwe => (DVU, NONE, OP_DIVE, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_divweu => (DVU, NONE, OP_DIVE, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_divwu => (DVU, NONE, OP_DIV, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_eieio => (ALU, NONE, OP_NOP, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_eqv => (ALU, NONE, OP_XOR, NONE, RB, RS, RA, '0', '0', '0', '1', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_extsb => (ALU, NONE, OP_EXTS, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_extsh => (ALU, NONE, OP_EXTS, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_extsw => (ALU, NONE, OP_EXTS, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_extswsli => (ALU, NONE, OP_EXTSWSLI, NONE, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fabs => (FPU, FPU, OP_FP_MOVE, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fadd => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fadds => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fcfid => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fcfids => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fcfidu => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fcfidus => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fcmpo => (FPU, FPU, OP_FP_CMP, FRA, FRB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_fcmpu => (FPU, FPU, OP_FP_CMP, FRA, FRB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_fcpsgn => (FPU, FPU, OP_FP_MOVE, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctid => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctidu => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctiduz => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctidz => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctiw => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctiwu => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctiwuz => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fctiwz => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fdiv => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fdivs => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fmadd => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fmadds => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fmr => (FPU, FPU, OP_FP_MOVE, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fmrgew => (FPU, FPU, OP_FP_MISC, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_fmrgow => (FPU, FPU, OP_FP_MISC, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_fmsub => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fmsubs => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fmul => (FPU, FPU, OP_FP_ARITH, FRA, NONE, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fmuls => (FPU, FPU, OP_FP_ARITH, FRA, NONE, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fnabs => (FPU, FPU, OP_FP_MOVE, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fneg => (FPU, FPU, OP_FP_MOVE, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fnmadd => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fnmadds => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fnmsub => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fnmsubs => (FPU, FPU, OP_FP_ARITH, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fre => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fres => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_frim => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_frin => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_frip => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_friz => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_frsp => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_frsqrte => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_frsqrtes => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fsel => (FPU, FPU, OP_FP_MOVE, FRA, FRB, FRC, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fsqrt => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fsqrts => (FPU, FPU, OP_FP_ARITH, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_fsub => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_fsubs => (FPU, FPU, OP_FP_ARITH, FRA, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_ftdiv => (FPU, FPU, OP_FP_CMP, FRA, FRB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_ftsqrt => (FPU, FPU, OP_FP_CMP, NONE, FRB, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_icbi => (ALU, NONE, OP_ICBI, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE),
INSN_icbt => (ALU, NONE, OP_ICBT, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE),
INSN_isel => (ALU, NONE, OP_ISEL, RA_OR_ZERO, RB, NONE, RT, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_isync => (ALU, NONE, OP_ISYNC, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lbarx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '1', '0', '0', NONE, '0', '0', NONE),
INSN_lbz => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lbzcix => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lbzu => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lbzux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lbzx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_ld => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_DS, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_ldarx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '1', '0', '0', NONE, '0', '0', NONE),
INSN_ldbrx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_ldcix => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_ldu => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_DS, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_ldux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_ldx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lfd => (LDST, FPU, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lfdu => (LDST, FPU, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lfdux => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lfdx => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lfiwax => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '1', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lfiwzx => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lfs => (LDST, FPU, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_lfsu => (LDST, FPU, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '1', '0', NONE, '0', '0', DUPD),
INSN_lfsux => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '1', '0', NONE, '0', '0', DUPD),
INSN_lfsx => (LDST, FPU, OP_LOAD, RA_OR_ZERO, RB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_lha => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '1', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lharx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '1', '0', '0', NONE, '0', '0', NONE),
INSN_lhau => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '1', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lhaux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '1', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lhax => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '1', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lhbrx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lhz => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lhzcix => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lhzu => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lhzux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lhzx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwa => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_DS, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '1', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwarx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '1', '0', '0', NONE, '0', '0', NONE),
INSN_lwaux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '1', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lwax => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '1', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwbrx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwz => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwzcix => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_lwzu => (LDST, NONE, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lwzux => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', DUPD),
INSN_lwzx => (LDST, NONE, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_maddhd => (ALU, NONE, OP_MUL_H64, RA, RB, RCR, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_maddhdu => (ALU, NONE, OP_MUL_H64, RA, RB, RCR, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_maddld => (ALU, NONE, OP_MUL_L64, RA, RB, RCR, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_mcrf => (ALU, NONE, OP_CROP, NONE, NONE, NONE, NONE, '1', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mcrfs => (FPU, FPU, OP_FP_CMP, NONE, NONE, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mcrxrx => (ALU, NONE, OP_MCRXRX, NONE, NONE, NONE, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mfcr => (ALU, NONE, OP_MFCR, NONE, NONE, NONE, RT, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mffs => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, FRT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_mfmsr => (ALU, NONE, OP_MFMSR, NONE, NONE, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE),
INSN_mfspr => (ALU, NONE, OP_MFSPR, NONE, NONE, RS, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_modsd => (DVU, NONE, OP_MOD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_modsw => (DVU, NONE, OP_MOD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '1', NONE, '0', '0', NONE),
INSN_modud => (DVU, NONE, OP_MOD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_moduw => (DVU, NONE, OP_MOD, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_mtcrf => (ALU, NONE, OP_MTCRF, NONE, NONE, RS, NONE, '0', '1', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mtfsb => (FPU, FPU, OP_FP_MISC, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_mtfsf => (FPU, FPU, OP_FP_MISC, NONE, FRB, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_mtfsfi => (FPU, FPU, OP_FP_MISC, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_mtmsr => (ALU, NONE, OP_MTMSRD, NONE, NONE, RS, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_mtmsrd => (ALU, NONE, OP_MTMSRD, NONE, NONE, RS, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mtspr => (ALU, NONE, OP_MTSPR, NONE, NONE, RS, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_mulhd => (ALU, NONE, OP_MUL_H64, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_mulhdu => (ALU, NONE, OP_MUL_H64, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_mulhw => (ALU, NONE, OP_MUL_H32, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_mulhwu => (ALU, NONE, OP_MUL_H32, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_mulld => (ALU, NONE, OP_MUL_L64, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_mulli => (ALU, NONE, OP_MUL_L64, RA, CONST_SI, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '0', NONE),
INSN_mullw => (ALU, NONE, OP_MUL_L64, RA, RB, NONE, RT, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_nand => (ALU, NONE, OP_AND, NONE, RB, RS, RA, '0', '0', '0', '1', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_neg => (ALU, NONE, OP_ADD, RA, NONE, NONE, RT, '0', '0', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_nop => (ALU, NONE, OP_NOP, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_nor => (ALU, NONE, OP_OR, NONE, RB, RS, RA, '0', '0', '0', '1', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_or => (ALU, NONE, OP_OR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_orc => (ALU, NONE, OP_OR, NONE, RB, RS, RA, '0', '0', '1', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_ori => (ALU, NONE, OP_OR, NONE, CONST_UI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_oris => (ALU, NONE, OP_OR, NONE, CONST_UI_HI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_popcntb => (ALU, NONE, OP_POPCNT, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_popcntd => (ALU, NONE, OP_POPCNT, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_popcntw => (ALU, NONE, OP_POPCNT, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_prtyd => (ALU, NONE, OP_PRTY, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_prtyw => (ALU, NONE, OP_PRTY, NONE, NONE, RS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_rfid => (ALU, NONE, OP_RFID, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_rldcl => (ALU, NONE, OP_RLCL, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rldcr => (ALU, NONE, OP_RLCR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rldic => (ALU, NONE, OP_RLC, NONE, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rldicl => (ALU, NONE, OP_RLCL, NONE, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rldicr => (ALU, NONE, OP_RLCR, NONE, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rldimi => (ALU, NONE, OP_RLC, RA, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_rlwimi => (ALU, NONE, OP_RLC, RA, CONST_SH32, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_rlwinm => (ALU, NONE, OP_RLC, NONE, CONST_SH32, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_rlwnm => (ALU, NONE, OP_RLC, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_sc => (ALU, NONE, OP_SC, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_setb => (ALU, NONE, OP_SETB, NONE, NONE, NONE, RT, '1', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_slbia => (LDST, NONE, OP_TLBIE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sld => (ALU, NONE, OP_SHL, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_slw => (ALU, NONE, OP_SHL, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_srad => (ALU, NONE, OP_SHR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_sradi => (ALU, NONE, OP_SHR, NONE, CONST_SH, RS, RA, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '0', NONE),
INSN_sraw => (ALU, NONE, OP_SHR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_srawi => (ALU, NONE, OP_SHR, NONE, CONST_SH32, RS, RA, '0', '0', '0', '0', ZERO, '1', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '0', NONE),
INSN_srd => (ALU, NONE, OP_SHR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_srw => (ALU, NONE, OP_SHR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '0', NONE),
INSN_stb => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, NONE, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stbcix => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stbcx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '1', '0', '0', ONE, '0', '0', NONE),
INSN_stbu => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, RA, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stbux => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stbx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_std => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_DS, RS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stdbrx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stdcix => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stdcx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '1', '0', '0', ONE, '0', '0', NONE),
INSN_stdu => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_DS, RS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stdux => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stdx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfd => (LDST, FPU, OP_STORE, RA_OR_ZERO, CONST_SI, FRS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfdu => (LDST, FPU, OP_STORE, RA_OR_ZERO, CONST_SI, FRS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfdux => (LDST, FPU, OP_STORE, RA_OR_ZERO, RB, FRS, RA, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfdx => (LDST, FPU, OP_STORE, RA_OR_ZERO, RB, FRS, NONE, '0', '0', '0', '0', ZERO, '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfiwx => (LDST, FPU, OP_STORE, RA_OR_ZERO, RB, FRS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stfs => (LDST, FPU, OP_STORE, RA_OR_ZERO, CONST_SI, FRS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_stfsu => (LDST, FPU, OP_STORE, RA_OR_ZERO, CONST_SI, FRS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '1', '0', NONE, '0', '0', NONE),
INSN_stfsux => (LDST, FPU, OP_STORE, RA_OR_ZERO, RB, FRS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '1', '0', NONE, '0', '0', NONE),
INSN_stfsx => (LDST, FPU, OP_STORE, RA_OR_ZERO, RB, FRS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_sth => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, NONE, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sthbrx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is2B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sthcix => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sthcx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '1', '0', '0', ONE, '0', '0', NONE),
INSN_sthu => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, RA, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sthux => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_sthx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stw => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stwbrx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '1', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stwcix => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stwcx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '1', '0', '0', ONE, '0', '0', NONE),
INSN_stwu => (LDST, NONE, OP_STORE, RA_OR_ZERO, CONST_SI, RS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stwux => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '0', NONE),
INSN_stwx => (LDST, NONE, OP_STORE, RA_OR_ZERO, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_subf => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '1', '0', ONE, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_subfc => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '1', '0', ONE, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_subfe => (ALU, NONE, OP_ADD, RA, RB, NONE, RT, '0', '0', '1', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_subfic => (ALU, NONE, OP_ADD, RA, CONST_SI, NONE, RT, '0', '0', '1', '0', ONE, '1', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_subfme => (ALU, NONE, OP_ADD, RA, CONST_M1, NONE, RT, '0', '0', '1', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_subfze => (ALU, NONE, OP_ADD, RA, NONE, NONE, RT, '0', '0', '1', '0', CA, '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_sync => (ALU, NONE, OP_NOP, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_td => (ALU, NONE, OP_TRAP, RA, RB, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_tdi => (ALU, NONE, OP_TRAP, RA, CONST_SI, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_tlbie => (LDST, NONE, OP_TLBIE, NONE, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_tlbiel => (LDST, NONE, OP_TLBIE, NONE, RB, RS, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_tlbsync => (ALU, NONE, OP_NOP, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_tw => (ALU, NONE, OP_TRAP, RA, RB, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_twi => (ALU, NONE, OP_TRAP, RA, CONST_SI, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', NONE, '0', '0', NONE),
INSN_wait => (ALU, NONE, OP_NOP, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_xor => (ALU, NONE, OP_XOR, NONE, RB, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '0', NONE),
INSN_xori => (ALU, NONE, OP_XOR, NONE, CONST_UI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
INSN_xoris => (ALU, NONE, OP_XOR, NONE, CONST_UI_HI, RS, RA, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE),
others => (NONE, NONE, OP_ILLEGAL, NONE, NONE, NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE)
);
function decode_ram_spr(sprn : spr_num_t) return ram_spr_info is
variable ret : ram_spr_info;
begin
ret := (index => (others => '0'), isodd => '0', valid => '1');
case sprn is
when SPR_LR =>
ret.index := RAMSPR_LR;
when SPR_CTR =>
ret.index := RAMSPR_CTR;
ret.isodd := '1';
when SPR_TAR =>
ret.index := RAMSPR_TAR;
when SPR_SRR0 =>
ret.index := RAMSPR_SRR0;
when SPR_SRR1 =>
ret.index := RAMSPR_SRR1;
ret.isodd := '1';
when SPR_HSRR0 =>
ret.index := RAMSPR_HSRR0;
when SPR_HSRR1 =>
ret.index := RAMSPR_HSRR1;
ret.isodd := '1';
when SPR_SPRG0 =>
ret.index := RAMSPR_SPRG0;
when SPR_SPRG1 =>
ret.index := RAMSPR_SPRG1;
ret.isodd := '1';
when SPR_SPRG2 =>
ret.index := RAMSPR_SPRG2;
when SPR_SPRG3 | SPR_SPRG3U =>
ret.index := RAMSPR_SPRG3;
ret.isodd := '1';
when SPR_HSPRG0 =>
ret.index := RAMSPR_HSPRG0;
when SPR_HSPRG1 =>
ret.index := RAMSPR_HSPRG1;
ret.isodd := '1';
when others =>
ret.valid := '0';
end case;
return ret;
end;
function map_spr(sprn : spr_num_t) return spr_id is
variable i : spr_id;
begin
i.sel := "000";
i.valid := '1';
i.ispmu := '0';
case sprn is
when SPR_TB =>
i.sel := SPRSEL_TB;
when SPR_TBU =>
i.sel := SPRSEL_TBU;
when SPR_DEC =>
i.sel := SPRSEL_DEC;
when SPR_PVR =>
i.sel := SPRSEL_PVR;
when 724 => -- LOG_ADDR SPR
i.sel := SPRSEL_LOGA;
when 725 => -- LOG_DATA SPR
i.sel := SPRSEL_LOGD;
when SPR_UPMC1 | SPR_UPMC2 | SPR_UPMC3 | SPR_UPMC4 | SPR_UPMC5 | SPR_UPMC6 |
SPR_UMMCR0 | SPR_UMMCR1 | SPR_UMMCR2 | SPR_UMMCRA | SPR_USIER | SPR_USIAR | SPR_USDAR |
SPR_PMC1 | SPR_PMC2 | SPR_PMC3 | SPR_PMC4 | SPR_PMC5 | SPR_PMC6 |
SPR_MMCR0 | SPR_MMCR1 | SPR_MMCR2 | SPR_MMCRA | SPR_SIER | SPR_SIAR | SPR_SDAR =>
i.ispmu := '1';
when SPR_CFAR =>
i.sel := SPRSEL_CFAR;
when SPR_XER =>
i.sel := SPRSEL_XER;
when others =>
i.valid := '0';
end case;
return i;
end;
begin
decode0_0: process(clk)
begin
if rising_edge(clk) then
if rst = '1' then
dc0 <= dc0_t_init;
elsif flush_in = '1' then
dc0.f_in.valid <= '0';
dc0.f_in.fetch_failed <= '0';
elsif stall_in = '0' then
dc0 <= dc0in;
end if;
if rst = '1' then
br.br_nia <= (others => '0');
br.br_offset <= (others => '0');
br.predict <= '0';
else
br <= br_in;
end if;
end if;
end process;
decode0_roms: process(clk)
begin
if rising_edge(clk) then
if stall_in = '0' then
if is_X(maj_rom_addr) then
major_predecode <= INSN_illegal;
else
major_predecode <= major_predecode_rom(to_integer(unsigned(maj_rom_addr)));
end if;
if is_X(row_rom_addr) then
row_predecode <= INSN_illegal;
else
row_predecode <= row_predecode_rom(to_integer(unsigned(row_rom_addr)));
end if;
end if;
end if;
end process;
decode0_1: process(all)
variable v : dc0_t;
variable majorop : std_ulogic_vector(5 downto 0);
variable majaddr : std_ulogic_vector(10 downto 0);
variable rowaddr : std_ulogic_vector(10 downto 0);
variable sprn : spr_num_t;
variable br_target : std_ulogic_vector(61 downto 0);
variable br_offset : signed(23 downto 0);
variable bv : br_predictor_t;
begin
v := dc0_t_init;
v.f_in := f_in;
br_offset := (others => '0');
majorop := f_in.insn(31 downto 26);
majaddr := majorop & f_in.insn(4 downto 0);
-- row_predecode_rom is used for op 19, 31, 59, 63
-- addr bit 10 is 0 for op 31, 1 for 19, 59, 63
rowaddr(10) := f_in.insn(31) or not f_in.insn(29);
rowaddr(9 downto 5) := f_in.insn(10 downto 6);
if f_in.insn(28) = '0' then
-- op 19 and op 59
rowaddr(4 downto 3) := '1' & f_in.insn(5);
else
-- op 31 and 63; for 63 we only use this when f_in.insn(5) = '0'
rowaddr(4 downto 3) := f_in.insn(5 downto 4);
end if;
rowaddr(2 downto 0) := f_in.insn(3 downto 1);
maj_rom_addr <= majaddr;
row_rom_addr <= rowaddr;
if is_X(f_in.insn) then
v.spr_info := (sel => "XXX", others => 'X');
v.ram_spr := (index => (others => 'X'), others => 'X');
else
sprn := decode_spr_num(f_in.insn);
v.spr_info := map_spr(sprn);
v.ram_spr := decode_ram_spr(sprn);
end if;
case unsigned(majorop) is
when "000100" => -- 4
-- major opcode 4, mostly VMX/VSX stuff but also some integer ops (madd*)
v.override := not f_in.insn(5);
when "011111" => -- 31
-- major opcode 31, lots of things
-- Use the first half of the row table for all columns
v.use_row := '1';
when "010000" => -- 16
-- Predict backward branches as taken, forward as untaken
v.br_pred := f_in.insn(15);
br_offset := resize(signed(f_in.insn(15 downto 2)), 24);
when "010010" => -- 18
-- Unconditional branches are always taken
v.br_pred := '1';
br_offset := signed(f_in.insn(25 downto 2));
when "010011" => -- 19
-- Columns 8-15 and 24-31 don't have any valid instructions
-- (where insn(5..1) is the column number).
-- addpcis (column 2) is in the major table
-- Other valid columns are mapped to columns in the second
-- half of the row table: columns 0-1 are mapped to 16-17
-- and 16-23 are mapped to 24-31.
v.override := f_in.insn(4);
v.use_row := f_in.insn(5) or (not f_in.insn(3) and not f_in.insn(2));
when "011000" => -- 24
-- ori, special-case the standard NOP
if std_match(f_in.insn, "01100000000000000000000000000000") then
v.override := '1';
v.ov_insn := INSN_nop;
end if;
when "111011" => -- 59
if HAS_FPU then
-- floating point operations, mostly single-precision
-- Columns 0-11 are illegal; columns 12-15 are mapped
-- to columns 20-23 in the second half of the row table,
-- and columns 16-31 are in the major table.
v.override := not f_in.insn(5) and (not f_in.insn(4) or not f_in.insn(3));
v.use_row := not f_in.insn(5);
else
v.override := '1';
end if;
when "111111" => -- 63
if HAS_FPU then
-- floating point operations, general and double-precision
-- Use columns 0-15 of the second half of the row table
-- for columns 0-15, and the major table for columns 16-31.
v.use_row := not f_in.insn(5);
else
v.override := '1';
end if;
when others =>
end case;
if f_in.fetch_failed = '1' then
v.override := '1';
v.ov_insn := INSN_fetch_fail;
-- Only send down a single OP_FETCH_FAILED
v.f_in.valid := not dc0.f_in.fetch_failed;
end if;
-- Branch predictor
-- Note bclr, bcctr and bctar are predicted not taken as we have no
-- count cache or link stack.
bv.br_nia := f_in.nia(63 downto 2);
if f_in.insn(1) = '1' then
bv.br_nia := (others => '0');
end if;
bv.br_offset := br_offset;
if f_in.next_predicted = '1' then
v.br_pred := '1';
elsif f_in.next_pred_ntaken = '1' then
v.br_pred := '0';
end if;
bv.predict := v.br_pred and f_in.valid and not flush_in and not busy_out and not f_in.next_predicted;
-- after a clock edge...
br_target := std_ulogic_vector(signed(br.br_nia) + br.br_offset);
dc0in <= v;
br_in <= bv;
f_out.redirect <= br.predict;
f_out.redirect_nia <= br_target & "00";
flush_out <= bv.predict or br.predict;
end process;
decode1_0: process(clk)
begin
if rising_edge(clk) then
if rst = '1' then
r <= Decode1ToDecode2Init;
elsif flush_in = '1' then
r.valid <= '0';
elsif stall_in = '0' then
r <= rin;
end if;
end if;
end process;
busy_out <= stall_in;
decode1_rom: process(clk)
begin
if rising_edge(clk) then
if stall_in = '0' then
decode <= decode_rom(decode_rom_addr);
end if;
end if;
end process;
decode1_1: process(all)
variable v : Decode1ToDecode2Type;
variable vr : Decode1ToRegisterFileType;
variable icode : insn_code;
variable sprn : spr_num_t;
variable maybe_rb : std_ulogic;
begin
v := Decode1ToDecode2Init;
v.valid := dc0.f_in.valid;
v.nia := dc0.f_in.nia;
v.insn := dc0.f_in.insn;
v.stop_mark := dc0.f_in.stop_mark;
v.big_endian := dc0.f_in.big_endian;
v.br_pred := dc0.br_pred;
v.spr_info := dc0.spr_info;
v.ram_spr := dc0.ram_spr;
if dc0.override = '1' then
icode := dc0.ov_insn;
elsif dc0.use_row = '0' then
icode := major_predecode;
else
icode := row_predecode;
end if;
decode_rom_addr <= icode;
if dc0.f_in.valid = '1' then
report "Decode insn " & to_hstring(dc0.f_in.insn) & " at " & to_hstring(dc0.f_in.nia) &
" code " & insn_code'image(icode);
end if;
-- Work out GPR/FPR read addresses
maybe_rb := '0';
vr.reg_1_addr := '0' & insn_ra(dc0.f_in.insn);
vr.reg_2_addr := '0' & insn_rb(dc0.f_in.insn);
vr.reg_3_addr := '0' & insn_rs(dc0.f_in.insn);
if icode >= INSN_first_rb then
maybe_rb := '1';
if icode < INSN_first_frs then
if icode >= INSN_first_rc then
vr.reg_3_addr := '0' & insn_rcreg(dc0.f_in.insn);
end if;
else
-- access FRS operand
vr.reg_3_addr(5) := '1';
if icode >= INSN_first_frab then
-- access FRA and/or FRB operands
vr.reg_1_addr(5) := '1';
vr.reg_2_addr(5) := '1';
end if;
if icode >= INSN_first_frabc then
-- access FRC operand
vr.reg_3_addr := '1' & insn_rcreg(dc0.f_in.insn);
end if;
end if;
end if;
vr.read_1_enable := dc0.f_in.valid and not dc0.f_in.fetch_failed;
vr.read_2_enable := dc0.f_in.valid and not dc0.f_in.fetch_failed and maybe_rb;
vr.read_3_enable := dc0.f_in.valid and not dc0.f_in.fetch_failed;
v.reg_a := vr.reg_1_addr;
v.reg_b := vr.reg_2_addr;
v.reg_c := vr.reg_3_addr;
-- Update registers
rin <= v;
-- Update outputs
d_out <= r;
d_out.decode <= decode;
r_out <= vr;
end process;
d1_log: if LOG_LENGTH > 0 generate
signal log_data : std_ulogic_vector(12 downto 0);
begin
dec1_log : process(clk)
begin
if rising_edge(clk) then
log_data <= std_ulogic_vector(to_unsigned(insn_type_t'pos(d_out.decode.insn_type), 6)) &
r.nia(5 downto 2) &
std_ulogic_vector(to_unsigned(unit_t'pos(d_out.decode.unit), 2)) &
r.valid;
end if;
end process;
log_out <= log_data;
end generate;
end architecture behaviour;
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