matthew1kalasky3
/
microwatt
forked from cores/microwatt
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
master
fpu-init
loadstore-init
core_debug-init
icache-unused-sig
icache-insn-u-state
dcache-unused-sig
unused-sig
divider-init
loadstore-pmu-init
icache-pmu-events
fpu-typo
less-fpga-init
caravel-mpw6-20220530
caravel-mpw5-20220323
caravel-mpw5-20220322
alt-reset-address
log2ceil-issue
fpu-constant
asic-3
boxarty-20211011
icbi-issue
orange-crab-freq
dcache-nc-fix
remove-potato-uart
cache-tlb-parameters-2
caravel-20210114
caravel-20210105
jtag-port-2
jtag-port
nia-debug
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '95442cd62c'
${ noResults }
microwatt/decode1.vhdl

860 lines
52 KiB
VHDL
Raw Blame History

library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
library work;
use work.common.all;
use work.decode_types.all;
entity decode1 is
port (
clk : in std_ulogic;
rst : in std_ulogic;
stall_in : in std_ulogic;
flush_in : in std_ulogic;
f_in : in Fetch2ToDecode1Type;
d_out : out Decode1ToDecode2Type
);
end entity decode1;
architecture behaviour of decode1 is
signal r, rin : Decode1ToDecode2Type;
type decode_rom_array_t is array(ppc_insn_t) of decode_rom_t;
-- Note: reformat with column -t -o ' '
constant decode_rom_array : decode_rom_array_t := (
-- unit internal in1 in2 in3 out const const const CR CR cry cry ldst BR sgn upd rsrv mul mul rc lk sgl
-- op 1 2 3 in out in out len ext 32 sgn pipe
PPC_ILLEGAL => (ALU, OP_ILLEGAL, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ADD => (ALU, OP_ADD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ADDC => (ALU, OP_ADDC, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ADDE => (ALU, OP_ADDC, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '1', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_ADDEX
PPC_ADDI => (ALU, OP_ADD, RA_OR_ZERO, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_ADDIC => (ALU, OP_ADDC, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_ADDIC_RC => (ALU, OP_ADDC, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '1'),
PPC_ADDIS => (ALU, OP_ADD, RA_OR_ZERO, CONST_SI_HI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_ADDME
--PPC_ADDPCIS
PPC_ADDZE => (ALU, OP_ADDC, RA, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '1', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_AND => (ALU, OP_AND, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ANDC => (ALU, OP_ANDC, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ANDI_RC => (ALU, OP_AND, RS, CONST_UI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '1'),
PPC_ANDIS_RC => (ALU, OP_AND, RS, CONST_UI_HI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', ONE, '0', '1'),
PPC_ATTN => (ALU, OP_ILLEGAL, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_B => (ALU, OP_B, NONE, CONST_LI, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '1'),
--PPC_BA
PPC_BC => (ALU, OP_BC, NONE, CONST_BD, NONE, NONE, BO, BI, NONE, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '1'),
--PPC_BCA
PPC_BCCTR => (ALU, OP_BCCTR, NONE, NONE, NONE, NONE, BO, BI, BH, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '1'),
--PPC_BCLA
PPC_BCLR => (ALU, OP_BCLR, NONE, NONE, NONE, NONE, BO, BI, BH, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '1', '1'),
--PPC_BCTAR
--PPC_BPERM
PPC_CMP => (ALU, OP_CMP, RA, RB, NONE, NONE, BF, L, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_CMPB => (ALU, OP_CMPB, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_CMPEQB
PPC_CMPI => (ALU, OP_CMP, RA, CONST_SI, NONE, NONE, BF, L, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_CMPL => (ALU, OP_CMPL, RA, RB, NONE, NONE, BF, L, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_CMPLI => (ALU, OP_CMPL, RA, CONST_UI, NONE, NONE, BF, L, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_CMPRB
PPC_CNTLZD => (ALU, OP_CNTLZD, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_CNTLZW => (ALU, OP_CNTLZW, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_CNTTZD => (ALU, OP_CNTTZD, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_CNTTZW => (ALU, OP_CNTTZW, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_CRAND
--PPC_CRANDC
--PPC_CREQV
--PPC_CRNAND
--PPC_CRNOR
--PPC_CROR
--PPC_CRORC
--PPC_CRXOR
--PPC_DARN
PPC_DCBF => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_DCBST => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_DCBT => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_DCBTST => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_DCBZ
PPC_DIVD => (ALU, OP_DIVD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_DIVDE
--PPC_DIVDEU
PPC_DIVDU => (ALU, OP_DIVDU, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_DIVW => (ALU, OP_DIVW, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_DIVWE
--PPC_DIVWEU
PPC_DIVWU => (ALU, OP_DIVWU, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_EQV => (ALU, OP_EQV, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_EXTSB => (ALU, OP_EXTSB, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_EXTSH => (ALU, OP_EXTSH, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_EXTSW => (ALU, OP_EXTSW, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_EXTSWSLI
--PPC_ICBI
PPC_ICBT => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_ISEL => (ALU, OP_ISEL, RA_OR_ZERO, RB, NONE, RT, BC, NONE, NONE, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_ISYNC => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LBARX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
--CONST_LI matches CONST_SI, so reuse it
PPC_LBZ => (LDST, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LBZU => (LDST, OP_LOAD, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LBZUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LBZX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LD => (LDST, OP_LOAD, RA_OR_ZERO, CONST_DS, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LDARX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_LDBRX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LDU => (LDST, OP_LOAD, RA, CONST_DS, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LDUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LDX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LHA => (LDST, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '1', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LHARX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_LHAU => (LDST, OP_LOAD, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '1', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LHAUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '1', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LHAX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '1', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LHBRX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LHZ => (LDST, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LHZU => (LDST, OP_LOAD, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LHZUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LHZX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LWA => (LDST, OP_LOAD, RA_OR_ZERO, CONST_DS, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '1', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LWARX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_LWAUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '1', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LWAX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '1', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LWBRX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LWZ => (LDST, OP_LOAD, RA_OR_ZERO, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_LWZU => (LDST, OP_LOAD, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LWZUX => (LDST, OP_LOAD, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_LWZX => (LDST, OP_LOAD, RA_OR_ZERO, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_MADDHD
--PPC_MADDHDU
--PPC_MADDLD
--PPC_MCRF
--PPC_MCRXR
--PPC_MCRXRX
PPC_MFCR => (ALU, OP_MFCR, NONE, NONE, NONE, RT, NONE, NONE, NONE, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MFOCRF => (ALU, OP_MFOCRF, NONE, NONE, NONE, RT, FXM, NONE, NONE, '1', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MFCTR => (ALU, OP_MFCTR, NONE, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MFLR => (ALU, OP_MFLR, NONE, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MFTB => (ALU, OP_MFTB, NONE, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MTCTR => (ALU, OP_MTCTR, RS, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MTLR => (ALU, OP_MTLR, RS, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_MFSPR
--PPC_MODSD
--PPC_MODSW
--PPC_MODUD
--PPC_MODUW
PPC_MTCRF => (ALU, OP_MTCRF, RS, NONE, NONE, NONE, FXM, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_MTOCRF => (ALU, OP_MTOCRF, RS, NONE, NONE, NONE, FXM, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_MTSPR
PPC_MULHD => (MUL, OP_MUL_H64, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '1'),
PPC_MULHDU => (MUL, OP_MUL_H64, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_MULHW => (MUL, OP_MUL_H32, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '1'),
PPC_MULHWU => (MUL, OP_MUL_H32, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '1', '0', RC, '0', '1'),
PPC_MULLD => (MUL, OP_MUL_L64, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '1', RC, '0', '1'),
PPC_MULLI => (MUL, OP_MUL_L64, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '0', '1', NONE, '0', '1'),
PPC_MULLW => (MUL, OP_MUL_L64, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '1', '0', '0', NONE, '0', '0', '0', '0', '1', '1', RC, '0', '1'),
PPC_NAND => (ALU, OP_NAND, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_NEG => (ALU, OP_NEG, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_NOR => (ALU, OP_NOR, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_OR => (ALU, OP_OR, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ORC => (ALU, OP_ORC, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_ORI => (ALU, OP_OR, RS, CONST_UI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_ORIS => (ALU, OP_OR, RS, CONST_UI_HI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_POPCNTB => (ALU, OP_POPCNTB, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_POPCNTD => (ALU, OP_POPCNTD, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_POPCNTW => (ALU, OP_POPCNTW, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_PRTYD => (ALU, OP_PRTYD, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_PRTYW => (ALU, OP_PRTYW, RS, NONE, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_RLDCL => (ALU, OP_RLDCL, RS, RB, NONE, RA, NONE, MB, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLDCR => (ALU, OP_RLDCR, RS, RB, NONE, RA, NONE, MB, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLDIC => (ALU, OP_RLDIC, RS, NONE, NONE, RA, SH, MB, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLDICL => (ALU, OP_RLDICL, RS, NONE, NONE, RA, SH, MB, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLDICR => (ALU, OP_RLDICR, RS, NONE, NONE, RA, SH, ME, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLDIMI => (ALU, OP_RLDIMI, RA, RS, NONE, RA, SH, MB, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLWIMI => (ALU, OP_RLWIMI, RA, RS, NONE, RA, SH32, MB32, ME32, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLWINM => (ALU, OP_RLWINM, RS, NONE, NONE, RA, SH32, MB32, ME32, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_RLWNM => (ALU, OP_RLWNM, RS, RB, NONE, RA, NONE, MB32, ME32, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
--PPC_SETB
PPC_SLD => (ALU, OP_SLD, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SLW => (ALU, OP_SLW, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRAD => (ALU, OP_SRAD, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRADI => (ALU, OP_SRADI, RS, NONE, NONE, RA, SH, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRAW => (ALU, OP_SRAW, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRAWI => (ALU, OP_SRAWI, RS, NONE, NONE, RA, SH, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRD => (ALU, OP_SRD, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SRW => (ALU, OP_SRW, RS, RB, RS, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_STB => (LDST, OP_STORE, RA_OR_ZERO, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_STBCX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '1', '0', '0', RC, '0', '1'),
PPC_STBU => (LDST, OP_STORE, RA, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '1', '0', '0', '0', RC, '0', '1'),
PPC_STBUX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '1', '0', '0', '0', RC, '0', '1'),
PPC_STBX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is1B, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_STD => (LDST, OP_STORE, RA_OR_ZERO, CONST_DS, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STDBRX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STDCX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_STDU => (LDST, OP_STORE, RA, CONST_DS, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STDUX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STDX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is8B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STH => (LDST, OP_STORE, RA, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STHBRX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STHCX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_STHU => (LDST, OP_STORE, RA, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STHUX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STHX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is2B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STW => (LDST, OP_STORE, RA_OR_ZERO, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STWBRX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '1', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_STWCX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '1', '0', '0', NONE, '0', '1'),
PPC_STWU => (LDST, OP_STORE, RA, CONST_SI, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STWUX => (LDST, OP_STORE, RA, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '1', '0', '0', '0', NONE, '0', '1'),
PPC_STWX => (LDST, OP_STORE, RA_OR_ZERO, RB, RS, NONE, NONE, NONE, NONE, '0', '0', '0', '0', is4B, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_SUBF => (ALU, OP_SUBF, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SUBFC => (ALU, OP_SUBFC, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SUBFE => (ALU, OP_SUBFC, RA, RB, NONE, RT, NONE, NONE, NONE, '0', '0', '1', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SUBFIC => (ALU, OP_SUBFC, RA, CONST_SI, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '1', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_SUBFME
PPC_SUBFZE => (ALU, OP_SUBFC, RA, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '1', '1', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_SYNC => (ALU, OP_NOP, NONE, NONE, NONE, NONE, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_TD
PPC_TDI => (ALU, OP_TDI, RA, CONST_SI, NONE, NONE, TOO, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
--PPC_TW
--PPC_TWI
PPC_XOR => (ALU, OP_XOR, RS, RB, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', RC, '0', '1'),
PPC_XORI => (ALU, OP_XOR, RS, CONST_UI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_XORIS => (ALU, OP_XOR, RS, CONST_UI_HI, NONE, RA, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
PPC_SIM_CONFIG => (ALU, OP_SIM_CONFIG,NONE, NONE, NONE, RT, NONE, NONE, NONE, '0', '0', '0', '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1'),
others => decode_rom_init
);
begin
decode1_0: process(clk)
begin
if rising_edge(clk) then
-- Output state remains unchanged on stall, unless we are flushing
if rst = '1' or flush_in = '1' or stall_in = '0' then
r <= rin;
end if;
end if;
end process;
decode1_1: process(all)
variable v : Decode1ToDecode2Type;
variable ppc_insn: ppc_insn_t;
begin
v := r;
v.valid := f_in.valid;
ppc_insn := PPC_ILLEGAL;
if f_in.valid then
v.nia := f_in.nia;
v.insn := f_in.insn;
report "Decode insn " & to_hstring(f_in.insn) & " at " & to_hstring(f_in.nia);
if std_match(f_in.insn, "011111---------------0100001010-") then
report "PPC_add";
ppc_insn := PPC_ADD;
elsif std_match(f_in.insn, "011111---------------0000001010-") then
report "PPC_addc";
ppc_insn := PPC_ADDC;
elsif std_match(f_in.insn, "011111---------------0010001010-") then
report "PPC_adde";
ppc_insn := PPC_ADDE;
elsif std_match(f_in.insn, "011111---------------0010101010-") then
report "PPC_addex";
ppc_insn := PPC_ADDEX;
elsif std_match(f_in.insn, "001110--------------------------") then
report "PPC_addi";
ppc_insn := PPC_ADDI;
elsif std_match(f_in.insn, "001100--------------------------") then
report "PPC_addic";
ppc_insn := PPC_ADDIC;
elsif std_match(f_in.insn, "001101--------------------------") then
report "PPC_addic.";
ppc_insn := PPC_ADDIC_RC;
elsif std_match(f_in.insn, "001111--------------------------") then
report "PPC_addis";
ppc_insn := PPC_ADDIS;
elsif std_match(f_in.insn, "011111---------------0011101010-") then
report "PPC_addme";
ppc_insn := PPC_ADDME;
elsif std_match(f_in.insn, "010011--------------------00010-") then
report "PPC_addpcis";
ppc_insn := PPC_ADDPCIS;
elsif std_match(f_in.insn, "011111---------------0011001010-") then
report "PPC_addze";
ppc_insn := PPC_ADDZE;
elsif std_match(f_in.insn, "011111---------------0000011100-") then
report "PPC_and";
ppc_insn := PPC_AND;
elsif std_match(f_in.insn, "011111---------------0000111100-") then
report "PPC_andc";
ppc_insn := PPC_ANDC;
elsif std_match(f_in.insn, "011100--------------------------") then
report "PPC_andi.";
ppc_insn := PPC_ANDI_RC;
elsif std_match(f_in.insn, "011101--------------------------") then
report "PPC_andis.";
ppc_insn := PPC_ANDIS_RC;
elsif std_match(f_in.insn, "000000---------------0100000000-") then
report "PPC_attn";
ppc_insn := PPC_ATTN;
elsif std_match(f_in.insn, "010010------------------------0-") then
report "PPC_b";
ppc_insn := PPC_B;
elsif std_match(f_in.insn, "010010------------------------1-") then
report "PPC_ba";
ppc_insn := PPC_BA;
elsif std_match(f_in.insn, "010000------------------------0-") then
report "PPC_bc";
ppc_insn := PPC_BC;
elsif std_match(f_in.insn, "010000------------------------10") then
report "PPC_bca";
ppc_insn := PPC_BCA;
elsif std_match(f_in.insn, "010011---------------1000010000-") then
report "PPC_bcctr";
ppc_insn := PPC_BCCTR;
elsif std_match(f_in.insn, "010000------------------------11") then
report "PPC_bcla";
ppc_insn := PPC_BCLA;
elsif std_match(f_in.insn, "010011---------------0000010000-") then
report "PPC_bclr";
ppc_insn := PPC_BCLR;
elsif std_match(f_in.insn, "010011---------------1000110000-") then
report "PPC_bctar";
ppc_insn := PPC_BCTAR;
elsif std_match(f_in.insn, "011111---------------0011111100-") then
report "PPC_bperm";
ppc_insn := PPC_BPERM;
elsif std_match(f_in.insn, "011111---------------0000000000-") then
report "PPC_cmp";
ppc_insn := PPC_CMP;
elsif std_match(f_in.insn, "011111---------------0111111100-") then
report "PPC_cmpb";
ppc_insn := PPC_CMPB;
elsif std_match(f_in.insn, "011111---------------0011100000-") then
report "PPC_cmpeqb";
ppc_insn := PPC_CMPEQB;
elsif std_match(f_in.insn, "001011--------------------------") then
report "PPC_cmpi";
ppc_insn := PPC_CMPI;
elsif std_match(f_in.insn, "011111---------------0000100000-") then
report "PPC_cmpl";
ppc_insn := PPC_CMPL;
elsif std_match(f_in.insn, "001010--------------------------") then
report "PPC_cmpli";
ppc_insn := PPC_CMPLI;
elsif std_match(f_in.insn, "011111---------------0011000000-") then
report "PPC_cmprb";
ppc_insn := PPC_CMPRB;
elsif std_match(f_in.insn, "011111---------------0000111010-") then
report "PPC_cntlzd";
ppc_insn := PPC_CNTLZD;
elsif std_match(f_in.insn, "011111---------------0000011010-") then
report "PPC_cntlzw";
ppc_insn := PPC_CNTLZW;
elsif std_match(f_in.insn, "011111---------------1000111010-") then
report "PPC_cnttzd";
ppc_insn := PPC_CNTTZD;
elsif std_match(f_in.insn, "011111---------------1000011010-") then
report "PPC_cnttzw";
ppc_insn := PPC_CNTTZW;
elsif std_match(f_in.insn, "010011---------------0100000001-") then
report "PPC_crand";
ppc_insn := PPC_CRAND;
elsif std_match(f_in.insn, "010011---------------0010000001-") then
report "PPC_crandc";
ppc_insn := PPC_CRANDC;
elsif std_match(f_in.insn, "010011---------------0100100001-") then
report "PPC_creqv";
ppc_insn := PPC_CREQV;
elsif std_match(f_in.insn, "010011---------------0011100001-") then
report "PPC_crnand";
ppc_insn := PPC_CRNAND;
elsif std_match(f_in.insn, "010011---------------0000100001-") then
report "PPC_crnor";
ppc_insn := PPC_CRNOR;
elsif std_match(f_in.insn, "010011---------------0111000001-") then
report "PPC_cror";
ppc_insn := PPC_CROR;
elsif std_match(f_in.insn, "010011---------------0110100001-") then
report "PPC_crorc";
ppc_insn := PPC_CRORC;
elsif std_match(f_in.insn, "010011---------------0011000001-") then
report "PPC_crxor";
ppc_insn := PPC_CRXOR;
elsif std_match(f_in.insn, "011111---------------1011110011-") then
report "PPC_darn";
ppc_insn := PPC_DARN;
elsif std_match(f_in.insn, "011111---------------0001010110-") then
report "PPC_dcbf";
ppc_insn := PPC_DCBF;
elsif std_match(f_in.insn, "011111---------------0000110110-") then
report "PPC_dcbst";
ppc_insn := PPC_DCBST;
elsif std_match(f_in.insn, "011111---------------0100010110-") then
report "PPC_dcbt";
ppc_insn := PPC_DCBT;
elsif std_match(f_in.insn, "011111---------------0011110110-") then
report "PPC_dcbtst";
ppc_insn := PPC_DCBTST;
elsif std_match(f_in.insn, "011111---------------1111110110-") then
report "PPC_dcbz";
ppc_insn := PPC_DCBZ;
elsif std_match(f_in.insn, "011111---------------0111101001-") then
report "PPC_divd";
ppc_insn := PPC_DIVD;
elsif std_match(f_in.insn, "011111---------------0110101001-") then
report "PPC_divde";
ppc_insn := PPC_DIVDE;
elsif std_match(f_in.insn, "011111---------------0110001001-") then
report "PPC_divdeu";
ppc_insn := PPC_DIVDEU;
elsif std_match(f_in.insn, "011111---------------0111001001-") then
report "PPC_divdu";
ppc_insn := PPC_DIVDU;
elsif std_match(f_in.insn, "011111---------------0111101011-") then
report "PPC_divw";
ppc_insn := PPC_DIVW;
elsif std_match(f_in.insn, "011111---------------0110101011-") then
report "PPC_divwe";
ppc_insn := PPC_DIVWE;
elsif std_match(f_in.insn, "011111---------------0110001011-") then
report "PPC_divweu";
ppc_insn := PPC_DIVWEU;
elsif std_match(f_in.insn, "011111---------------0111001011-") then
report "PPC_divwu";
ppc_insn := PPC_DIVWU;
elsif std_match(f_in.insn, "011111---------------0100011100-") then
report "PPC_eqv";
ppc_insn := PPC_EQV;
elsif std_match(f_in.insn, "011111---------------1110111010-") then
report "PPC_extsb";
ppc_insn := PPC_EXTSB;
elsif std_match(f_in.insn, "011111---------------1110011010-") then
report "PPC_extsh";
ppc_insn := PPC_EXTSH;
elsif std_match(f_in.insn, "011111---------------1111011010-") then
report "PPC_extsw";
ppc_insn := PPC_EXTSW;
elsif std_match(f_in.insn, "011111---------------110111101--") then
report "PPC_extswsli";
ppc_insn := PPC_EXTSWSLI;
elsif std_match(f_in.insn, "011111---------------1111010110-") then
report "PPC_icbi";
ppc_insn := PPC_ICBI;
elsif std_match(f_in.insn, "011111---------------0000010110-") then
report "PPC_icbt";
ppc_insn := PPC_ICBT;
elsif std_match(f_in.insn, "011111--------------------01111-") then
report "PPC_isel";
ppc_insn := PPC_ISEL;
elsif std_match(f_in.insn, "010011---------------0010010110-") then
report "PPC_isync";
ppc_insn := PPC_ISYNC;
elsif std_match(f_in.insn, "011111---------------0000110100-") then
report "PPC_lbarx";
ppc_insn := PPC_LBARX;
elsif std_match(f_in.insn, "100010--------------------------") then
report "PPC_lbz";
ppc_insn := PPC_LBZ;
elsif std_match(f_in.insn, "100011--------------------------") then
report "PPC_lbzu";
ppc_insn := PPC_LBZU;
elsif std_match(f_in.insn, "011111---------------0001110111-") then
report "PPC_lbzux";
ppc_insn := PPC_LBZUX;
elsif std_match(f_in.insn, "011111---------------0001010111-") then
report "PPC_lbzx";
ppc_insn := PPC_LBZX;
elsif std_match(f_in.insn, "111010------------------------00") then
report "PPC_ld";
ppc_insn := PPC_LD;
elsif std_match(f_in.insn, "011111---------------0001010100-") then
report "PPC_ldarx";
ppc_insn := PPC_LDARX;
elsif std_match(f_in.insn, "011111---------------1000010100-") then
report "PPC_ldbrx";
ppc_insn := PPC_LDBRX;
elsif std_match(f_in.insn, "111010------------------------01") then
report "PPC_ldu";
ppc_insn := PPC_LDU;
elsif std_match(f_in.insn, "011111---------------0000110101-") then
report "PPC_ldux";
ppc_insn := PPC_LDUX;
elsif std_match(f_in.insn, "011111---------------0000010101-") then
report "PPC_ldx";
ppc_insn := PPC_LDX;
elsif std_match(f_in.insn, "101010--------------------------") then
report "PPC_lha";
ppc_insn := PPC_LHA;
elsif std_match(f_in.insn, "011111---------------0001110100-") then
report "PPC_lharx";
ppc_insn := PPC_LHARX;
elsif std_match(f_in.insn, "101011--------------------------") then
report "PPC_lhau";
ppc_insn := PPC_LHAU;
elsif std_match(f_in.insn, "011111---------------0101110111-") then
report "PPC_lhaux";
ppc_insn := PPC_LHAUX;
elsif std_match(f_in.insn, "011111---------------0101010111-") then
report "PPC_lhax";
ppc_insn := PPC_LHAX;
elsif std_match(f_in.insn, "011111---------------1100010110-") then
report "PPC_lhbrx";
ppc_insn := PPC_LHBRX;
elsif std_match(f_in.insn, "101000--------------------------") then
report "PPC_lhz";
ppc_insn := PPC_LHZ;
elsif std_match(f_in.insn, "101001--------------------------") then
report "PPC_lhzu";
ppc_insn := PPC_LHZU;
elsif std_match(f_in.insn, "011111---------------0100110111-") then
report "PPC_lhzux";
ppc_insn := PPC_LHZUX;
elsif std_match(f_in.insn, "011111---------------0100010111-") then
report "PPC_lhzx";
ppc_insn := PPC_LHZX;
elsif std_match(f_in.insn, "111010------------------------10") then
report "PPC_lwa";
ppc_insn := PPC_LWA;
elsif std_match(f_in.insn, "011111---------------0000010100-") then
report "PPC_lwarx";
ppc_insn := PPC_LWARX;
elsif std_match(f_in.insn, "011111---------------0101110101-") then
report "PPC_lwaux";
ppc_insn := PPC_LWAUX;
elsif std_match(f_in.insn, "011111---------------0101010101-") then
report "PPC_lwax";
ppc_insn := PPC_LWAX;
elsif std_match(f_in.insn, "011111---------------1000010110-") then
report "PPC_lwbrx";
ppc_insn := PPC_LWBRX;
elsif std_match(f_in.insn, "100000--------------------------") then
report "PPC_lwz";
ppc_insn := PPC_LWZ;
elsif std_match(f_in.insn, "100001--------------------------") then
report "PPC_lwzu";
ppc_insn := PPC_LWZU;
elsif std_match(f_in.insn, "011111---------------0000110111-") then
report "PPC_lwzux";
ppc_insn := PPC_LWZUX;
elsif std_match(f_in.insn, "011111---------------0000010111-") then
report "PPC_lwzx";
ppc_insn := PPC_LWZX;
elsif std_match(f_in.insn, "000100--------------------110000") then
report "PPC_maddhd";
ppc_insn := PPC_MADDHD;
elsif std_match(f_in.insn, "000100--------------------110001") then
report "PPC_maddhdu";
ppc_insn := PPC_MADDHDU;
elsif std_match(f_in.insn, "000100--------------------110011") then
report "PPC_maddld";
ppc_insn := PPC_MADDLD;
elsif std_match(f_in.insn, "010011---------------0000000000-") then
report "PPC_mcrf";
ppc_insn := PPC_MCRF;
elsif std_match(f_in.insn, "011111---------------1000000000-") then
report "PPC_mcrxr";
ppc_insn := PPC_MCRXR;
elsif std_match(f_in.insn, "011111---------------1001000000-") then
report "PPC_mcrxrx";
ppc_insn := PPC_MCRXRX;
elsif std_match(f_in.insn, "011111-----0---------0000010011-") then
report "PPC_mfcr";
ppc_insn := PPC_MFCR;
elsif std_match(f_in.insn, "011111-----1---------0000010011-") then
report "PPC_mfocrf";
ppc_insn := PPC_MFOCRF;
-- Specific MF/MT SPR encodings first
elsif std_match(f_in.insn, "011111-----01001000000101010011-") then
report "PPC_mfctr";
ppc_insn := PPC_MFCTR;
elsif std_match(f_in.insn, "011111-----01000000000101010011-") then
report "PPC_mflr";
ppc_insn := PPC_MFLR;
elsif std_match(f_in.insn, "011111-----01100010000101010011-") then
report "PPC_mftb";
ppc_insn := PPC_MFTB;
elsif std_match(f_in.insn, "011111-----01001000000111010011-") then
report "PPC_mtctr";
ppc_insn := PPC_MTCTR;
elsif std_match(f_in.insn, "011111-----01000000000111010011-") then
report "PPC_mtlr";
ppc_insn := PPC_MTLR;
elsif std_match(f_in.insn, "011111---------------0101010011-") then
report "PPC_mfspr";
ppc_insn := PPC_MFSPR;
elsif std_match(f_in.insn, "011111---------------1100001001-") then
report "PPC_modsd";
ppc_insn := PPC_MODSD;
elsif std_match(f_in.insn, "011111---------------1100001011-") then
report "PPC_modsw";
ppc_insn := PPC_MODSW;
elsif std_match(f_in.insn, "011111---------------0100001001-") then
report "PPC_modud";
ppc_insn := PPC_MODUD;
elsif std_match(f_in.insn, "011111---------------0100001011-") then
report "PPC_moduw";
ppc_insn := PPC_MODUW;
elsif std_match(f_in.insn, "011111-----0---------0010010000-") then
report "PPC_mtcrf";
ppc_insn := PPC_MTCRF;
elsif std_match(f_in.insn, "011111-----1---------0010010000-") then
report "PPC_mtocrf";
ppc_insn := PPC_MTOCRF;
elsif std_match(f_in.insn, "011111---------------0111010011-") then
report "PPC_mtspr";
ppc_insn := PPC_MTSPR;
elsif std_match(f_in.insn, "011111----------------001001001-") then
report "PPC_mulhd";
ppc_insn := PPC_MULHD;
elsif std_match(f_in.insn, "011111----------------000001001-") then
report "PPC_mulhdu";
ppc_insn := PPC_MULHDU;
elsif std_match(f_in.insn, "011111----------------001001011-") then
report "PPC_mulhw";
ppc_insn := PPC_MULHW;
elsif std_match(f_in.insn, "011111----------------000001011-") then
report "PPC_mulhwu";
ppc_insn := PPC_MULHWU;
elsif std_match(f_in.insn, "011111---------------0011101001-") then
report "PPC_mulld";
ppc_insn := PPC_MULLD;
elsif std_match(f_in.insn, "000111--------------------------") then
report "PPC_mulli";
ppc_insn := PPC_MULLI;
elsif std_match(f_in.insn, "011111---------------0011101011-") then
report "PPC_mullw";
ppc_insn := PPC_MULLW;
elsif std_match(f_in.insn, "011111---------------0111011100-") then
report "PPC_nand";
ppc_insn := PPC_NAND;
elsif std_match(f_in.insn, "011111---------------0001101000-") then
report "PPC_neg";
ppc_insn := PPC_NEG;
elsif std_match(f_in.insn, "011111---------------0001111100-") then
report "PPC_nor";
ppc_insn := PPC_NOR;
elsif std_match(f_in.insn, "011111---------------0110111100-") then
report "PPC_or";
ppc_insn := PPC_OR;
elsif std_match(f_in.insn, "011111---------------0110011100-") then
report "PPC_orc";
ppc_insn := PPC_ORC;
elsif std_match(f_in.insn, "011000--------------------------") then
report "PPC_ori";
ppc_insn := PPC_ORI;
elsif std_match(f_in.insn, "011001--------------------------") then
report "PPC_oris";
ppc_insn := PPC_ORIS;
elsif std_match(f_in.insn, "011111---------------0001111010-") then
report "PPC_popcntb";
ppc_insn := PPC_POPCNTB;
elsif std_match(f_in.insn, "011111---------------0111111010-") then
report "PPC_popcntd";
ppc_insn := PPC_POPCNTD;
elsif std_match(f_in.insn, "011111---------------0101111010-") then
report "PPC_popcntw";
ppc_insn := PPC_POPCNTW;
elsif std_match(f_in.insn, "011111---------------0010111010-") then
report "PPC_prtyd";
ppc_insn := PPC_PRTYD;
elsif std_match(f_in.insn, "011111---------------0010011010-") then
report "PPC_prtyw";
ppc_insn := PPC_PRTYW;
elsif std_match(f_in.insn, "011110---------------------1000-") then
report "PPC_rldcl";
ppc_insn := PPC_RLDCL;
elsif std_match(f_in.insn, "011110---------------------1001-") then
report "PPC_rldcr";
ppc_insn := PPC_RLDCR;
elsif std_match(f_in.insn, "011110---------------------010--") then
report "PPC_rldic";
ppc_insn := PPC_RLDIC;
elsif std_match(f_in.insn, "011110---------------------000--") then
report "PPC_rldicl";
ppc_insn := PPC_RLDICL;
elsif std_match(f_in.insn, "011110---------------------001--") then
report "PPC_rldicr";
ppc_insn := PPC_RLDICR;
elsif std_match(f_in.insn, "011110---------------------011--") then
report "PPC_rldimi";
ppc_insn := PPC_RLDIMI;
elsif std_match(f_in.insn, "010100--------------------------") then
report "PPC_rlwimi";
ppc_insn := PPC_RLWIMI;
elsif std_match(f_in.insn, "010101--------------------------") then
report "PPC_rlwinm";
ppc_insn := PPC_RLWINM;
elsif std_match(f_in.insn, "010111--------------------------") then
report "PPC_rlwnm";
ppc_insn := PPC_RLWNM;
elsif std_match(f_in.insn, "011111---------------0010000000-") then
report "PPC_setb";
ppc_insn := PPC_SETB;
elsif std_match(f_in.insn, "011111---------------0000011011-") then
report "PPC_sld";
ppc_insn := PPC_SLD;
elsif std_match(f_in.insn, "011111---------------0000011000-") then
report "PPC_slw";
ppc_insn := PPC_SLW;
elsif std_match(f_in.insn, "011111---------------1100011010-") then
report "PPC_srad";
ppc_insn := PPC_SRAD;
elsif std_match(f_in.insn, "011111---------------110011101--") then
report "PPC_sradi";
ppc_insn := PPC_SRADI;
elsif std_match(f_in.insn, "011111---------------1100011000-") then
report "PPC_sraw";
ppc_insn := PPC_SRAW;
elsif std_match(f_in.insn, "011111---------------1100111000-") then
report "PPC_srawi";
ppc_insn := PPC_SRAWI;
elsif std_match(f_in.insn, "011111---------------1000011011-") then
report "PPC_srd";
ppc_insn := PPC_SRD;
elsif std_match(f_in.insn, "011111---------------1000011000-") then
report "PPC_srw";
ppc_insn := PPC_SRW;
elsif std_match(f_in.insn, "100110--------------------------") then
report "PPC_stb";
ppc_insn := PPC_STB;
elsif std_match(f_in.insn, "011111---------------1010110110-") then
report "PPC_stbcx";
ppc_insn := PPC_STBCX;
elsif std_match(f_in.insn, "100111--------------------------") then
report "PPC_stbu";
ppc_insn := PPC_STBU;
elsif std_match(f_in.insn, "011111---------------0011110111-") then
report "PPC_stbux";
ppc_insn := PPC_STBUX;
elsif std_match(f_in.insn, "011111---------------0011010111-") then
report "PPC_stbx";
ppc_insn := PPC_STBX;
elsif std_match(f_in.insn, "111110------------------------00") then
report "PPC_std";
ppc_insn := PPC_STD;
elsif std_match(f_in.insn, "011111---------------1010010100-") then
report "PPC_stdbrx";
ppc_insn := PPC_STDBRX;
elsif std_match(f_in.insn, "011111---------------0011010110-") then
report "PPC_stdcx";
ppc_insn := PPC_STDCX;
elsif std_match(f_in.insn, "111110------------------------01") then
report "PPC_stdu";
ppc_insn := PPC_STDU;
elsif std_match(f_in.insn, "011111---------------0010110101-") then
report "PPC_stdux";
ppc_insn := PPC_STDUX;
elsif std_match(f_in.insn, "011111---------------0010010101-") then
report "PPC_stdx";
ppc_insn := PPC_STDX;
elsif std_match(f_in.insn, "101100--------------------------") then
report "PPC_sth";
ppc_insn := PPC_STH;
elsif std_match(f_in.insn, "011111---------------1110010110-") then
report "PPC_sthbrx";
ppc_insn := PPC_STHBRX;
elsif std_match(f_in.insn, "011111---------------1011010110-") then
report "PPC_sthcx";
ppc_insn := PPC_STHCX;
elsif std_match(f_in.insn, "101101--------------------------") then
report "PPC_sthu";
ppc_insn := PPC_STHU;
elsif std_match(f_in.insn, "011111---------------0110110111-") then
report "PPC_sthux";
ppc_insn := PPC_STHUX;
elsif std_match(f_in.insn, "011111---------------0110010111-") then
report "PPC_sthx";
ppc_insn := PPC_STHX;
elsif std_match(f_in.insn, "100100--------------------------") then
report "PPC_stw";
ppc_insn := PPC_STW;
elsif std_match(f_in.insn, "011111---------------1010010110-") then
report "PPC_stwbrx";
ppc_insn := PPC_STWBRX;
elsif std_match(f_in.insn, "011111---------------0010010110-") then
report "PPC_stwcx";
ppc_insn := PPC_STWCX;
elsif std_match(f_in.insn, "100101--------------------------") then
report "PPC_stwu";
ppc_insn := PPC_STWU;
elsif std_match(f_in.insn, "011111---------------0010110111-") then
report "PPC_stwux";
ppc_insn := PPC_STWUX;
elsif std_match(f_in.insn, "011111---------------0010010111-") then
report "PPC_stwx";
ppc_insn := PPC_STWX;
elsif std_match(f_in.insn, "011111---------------0000101000-") then
report "PPC_subf";
ppc_insn := PPC_SUBF;
elsif std_match(f_in.insn, "011111---------------0000001000-") then
report "PPC_subfc";
ppc_insn := PPC_SUBFC;
elsif std_match(f_in.insn, "011111---------------0010001000-") then
report "PPC_subfe";
ppc_insn := PPC_SUBFE;
elsif std_match(f_in.insn, "001000--------------------------") then
report "PPC_subfic";
ppc_insn := PPC_SUBFIC;
elsif std_match(f_in.insn, "011111---------------0011101000-") then
report "PPC_subfme";
ppc_insn := PPC_SUBFME;
elsif std_match(f_in.insn, "011111---------------0011001000-") then
report "PPC_subfze";
ppc_insn := PPC_SUBFZE;
elsif std_match(f_in.insn, "011111---------------1001010110-") then
report "PPC_sync";
ppc_insn := PPC_SYNC;
elsif std_match(f_in.insn, "011111---------------0001000100-") then
report "PPC_td";
ppc_insn := PPC_TD;
elsif std_match(f_in.insn, "000010--------------------------") then
report "PPC_tdi";
ppc_insn := PPC_TDI;
elsif std_match(f_in.insn, "011111---------------0000000100-") then
report "PPC_tw";
ppc_insn := PPC_TW;
elsif std_match(f_in.insn, "000011--------------------------") then
report "PPC_twi";
ppc_insn := PPC_TWI;
elsif std_match(f_in.insn, "011111---------------0100111100-") then
report "PPC_xor";
ppc_insn := PPC_XOR;
elsif std_match(f_in.insn, "011010--------------------------") then
report "PPC_xori";
ppc_insn := PPC_XORI;
elsif std_match(f_in.insn, "011011--------------------------") then
report "PPC_xoris";
ppc_insn := PPC_XORIS;
elsif std_match(f_in.insn, "000001---------------0000000011-") then
report "PPC_SIM_CONFIG";
ppc_insn := PPC_SIM_CONFIG;
else
report "PPC_illegal";
ppc_insn := PPC_ILLEGAL;
end if;
v.decode := decode_rom_array(ppc_insn);
end if;
if flush_in = '1' then
v.valid := '0';
end if;
if rst = '1' then
v := Decode1ToDecode2Init;
end if;
-- Update registers
rin <= v;
-- Update outputs
d_out <= r;
end process;
end architecture behaviour;
Reference in New Issue View Git Blame Copy Permalink