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https://opencores.org/ocsvn/tg68kc/tg68kc/trunk
Subversion Repositories tg68kc
[/] [tg68kc/] [trunk/] [TG68K_Pack.vhd] - Rev 5
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------------------------------------------------------------------------------ ------------------------------------------------------------------------------ -- -- -- Copyright (c) 2009-2018 Tobias Gubener -- -- Subdesign fAMpIGA by TobiFlex -- -- Patches by MikeJ, Till Harbaum, Rok Krajnk, ... -- -- -- -- This source file is free software: you can redistribute it and/or modify -- -- it under the terms of the GNU Lesser General Public License as published -- -- by the Free Software Foundation, either version 3 of the License, or -- -- (at your option) any later version. -- -- -- -- This source file is distributed in the hope that it will be useful, -- -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -- -- GNU General Public License for more details. -- -- -- -- You should have received a copy of the GNU General Public License -- -- along with this program. If not, see <http://www.gnu.org/licenses/>. -- -- -- ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ library IEEE; use IEEE.std_logic_1164.all; package TG68K_Pack is type micro_states is (idle, nop, ld_nn, st_nn, ld_dAn1, ld_AnXn1, ld_AnXn2, st_dAn1, ld_AnXnbd1, ld_AnXnbd2, ld_AnXnbd3, ld_229_1, ld_229_2, ld_229_3, ld_229_4, st_229_1, st_229_2, st_229_3, st_229_4, st_AnXn1, st_AnXn2, bra1, bsr1, bsr2, nopnop, dbcc1, movem1, movem2, movem3, andi, pack1, pack2, pack3, op_AxAy, cmpm, link1, link2, unlink1, unlink2, int1, int2, int3, int4, rte1, rte2, rte3, rtd1, rtd2, trap0, trap1, trap2, trap3, trap4, trap5, trap6, movec1, movep1, movep2, movep3, movep4, movep5, rota1, bf1, mul1, mul2, mul_end1, mul_end2, div1, div2, div3, div4, div_end1, div_end2); constant opcMOVE : integer := 0; -- constant opcMOVEQ : integer := 1; -- constant opcMOVESR : integer := 2; -- constant opcADD : integer := 3; -- constant opcADDQ : integer := 4; -- constant opcOR : integer := 5; -- constant opcAND : integer := 6; -- constant opcEOR : integer := 7; -- constant opcCMP : integer := 8; -- constant opcROT : integer := 9; -- constant opcCPMAW : integer := 10; constant opcEXT : integer := 11; -- constant opcABCD : integer := 12; -- constant opcSBCD : integer := 13; -- constant opcBITS : integer := 14; -- constant opcSWAP : integer := 15; -- constant opcScc : integer := 16; -- constant andiSR : integer := 17; -- constant eoriSR : integer := 18; -- constant oriSR : integer := 19; -- constant opcMULU : integer := 20; -- constant opcDIVU : integer := 21; -- constant dispouter : integer := 22; -- constant rot_nop : integer := 23; -- constant ld_rot_cnt : integer := 24; -- constant writePC_add : integer := 25; -- constant ea_data_OP1 : integer := 26; -- constant ea_data_OP2 : integer := 27; -- constant use_XZFlag : integer := 28; -- constant get_bfoffset : integer := 29; -- constant save_memaddr : integer := 30; -- constant opcCHK : integer := 31; -- constant movec_rd : integer := 32; -- constant movec_wr : integer := 33; -- constant Regwrena : integer := 34; -- constant update_FC : integer := 35; -- constant linksp : integer := 36; -- constant movepl : integer := 37; -- constant update_ld : integer := 38; -- constant OP1addr : integer := 39; -- constant write_reg : integer := 40; -- constant changeMode : integer := 41; -- constant ea_build : integer := 42; -- constant trap_chk : integer := 43; -- constant store_ea_data : integer := 44; -- constant addrlong : integer := 45; -- constant postadd : integer := 46; -- constant presub : integer := 47; -- constant subidx : integer := 48; -- constant no_Flags : integer := 49; -- constant use_SP : integer := 50; -- constant to_CCR : integer := 51; -- constant to_SR : integer := 52; -- constant OP2out_one : integer := 53; -- constant OP1out_zero : integer := 54; -- constant mem_addsub : integer := 55; -- constant addsub : integer := 56; -- constant directPC : integer := 57; -- constant direct_delta : integer := 58; -- constant directSR : integer := 59; -- constant directCCR : integer := 60; -- constant exg : integer := 61; -- constant get_ea_now : integer := 62; -- constant ea_to_pc : integer := 63; -- constant hold_dwr : integer := 64; -- constant to_USP : integer := 65; -- constant from_USP : integer := 66; -- constant write_lowlong : integer := 67; -- constant write_reminder : integer := 68; -- constant movem_action : integer := 69; -- constant briefext : integer := 70; -- constant get_2ndOPC : integer := 71; -- constant mem_byte : integer := 72; -- constant longaktion : integer := 73; -- constant opcRESET : integer := 74; -- constant opcBF : integer := 75; -- constant opcBFwb : integer := 76; -- constant opcPACK : integer := 77; -- constant opcUNPACK : integer := 78; -- constant hold_ea_data : integer := 79; -- constant store_ea_packdata : integer := 80; -- constant exec_BS : integer := 81; -- -- constant : integer := 75; -- -- constant : integer := 76; -- -- constant : integer := 7; -- -- constant : integer := 7; -- -- constant : integer := 7; -- constant lastOpcBit : integer := 81; component TG68K_ALU generic( MUL_Mode :integer; --0=>16Bit, 1=>32Bit, 2=>switchable with CPU(1), 3=>no MUL, MUL_Hardware :integer; --0=>no, 1=>yes, DIV_Mode :integer; --0=>16Bit, 1=>32Bit, 2=>switchable with CPU(1), 3=>no DIV, BarrelShifter :integer --0=>no, 1=>yes, 2=>switchable with CPU(1) ); port( clk : in std_logic; Reset : in std_logic; clkena_lw : in std_logic:='1'; execOPC : in bit; decodeOPC : in bit; exe_condition : in std_logic; exec_tas : in std_logic; long_start : in bit; non_aligned : in std_logic; movem_presub : in bit; set_stop : in bit; Z_error : in bit; rot_bits : in std_logic_vector(1 downto 0); exec : in bit_vector(lastOpcBit downto 0); OP1out : in std_logic_vector(31 downto 0); OP2out : in std_logic_vector(31 downto 0); reg_QA : in std_logic_vector(31 downto 0); reg_QB : in std_logic_vector(31 downto 0); opcode : in std_logic_vector(15 downto 0); -- datatype : in std_logic_vector(1 downto 0); exe_opcode : in std_logic_vector(15 downto 0); exe_datatype : in std_logic_vector(1 downto 0); sndOPC : in std_logic_vector(15 downto 0); last_data_read : in std_logic_vector(15 downto 0); data_read : in std_logic_vector(15 downto 0); FlagsSR : in std_logic_vector(7 downto 0); micro_state : in micro_states; bf_ext_in : in std_logic_vector(7 downto 0); bf_ext_out : out std_logic_vector(7 downto 0); bf_shift : in std_logic_vector(5 downto 0); bf_width : in std_logic_vector(5 downto 0); bf_ffo_offset : in std_logic_vector(31 downto 0); bf_loffset : in std_logic_vector(4 downto 0); set_V_Flag : buffer bit; Flags : buffer std_logic_vector(7 downto 0); c_out : buffer std_logic_vector(2 downto 0); addsub_q : buffer std_logic_vector(31 downto 0); ALUout : out std_logic_vector(31 downto 0) ); end component; end;
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