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MacPlus_MiSTer/TG68K_Pack.vhd
sorgelig 35a1e5d180 Initial port.
2017-10-22 09:22:56 +08:00

251 lines
10 KiB
VHDL
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------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- --
-- Copyright (c) 2009-2013 Tobias Gubener --
-- Subdesign fAMpIGA by TobiFlex --
-- --
-- This source file is free software: you can redistribute it and/or modify --
-- it under the terms of the GNU 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, op_AxAy, cmpm, link1, link2, unlink1, unlink2, int1, int2, int3, int4, rte1, rte2, rte3, 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, pack1, pack2, pack3);
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 s2nd_hbits : integer := 77; --
constant opcPACK : integer := 77; --
-- constant s2nd_hbits : integer := 77; --
-- constant : integer := 75; --
-- constant : integer := 76; --
-- constant : integer := 7; --
-- constant : integer := 7; --
-- constant : integer := 7; --
constant lastOpcBit : integer := 77;
type rTG68K_opc is record
opcMOVE : bit;
opcMOVEQ : bit;
opcMOVESR : bit;
opcADD : bit;
opcADDQ : bit;
opcOR : bit;
opcAND : bit;
opcEOR : bit;
opcCMP : bit;
opcROT : bit;
opcCPMAW : bit;
opcEXT : bit;
opcABCD : bit;
opcSBCD : bit;
opcBITS : bit;
opcSWAP : bit;
opcScc : bit;
andiSR : bit;
eoriSR : bit;
oriSR : bit;
opcMULU : bit;
opcDIVU : bit;
dispouter : bit;
rot_nop : bit;
ld_rot_cnt : bit;
writePC_add : bit;
ea_data_OP1 : bit;
ea_data_OP2 : bit;
use_XZFlag : bit;
get_bfoffset : bit;
save_memaddr : bit;
opcCHK : bit;
movec_rd : bit;
movec_wr : bit;
Regwrena : bit;
update_FC : bit;
linksp : bit;
movepl : bit;
update_ld : bit;
OP1addr : bit;
write_reg : bit;
changeMode : bit;
ea_build : bit;
trap_chk : bit;
store_ea_data : bit;
addrlong : bit;
postadd : bit;
presub : bit;
subidx : bit;
no_Flags : bit;
use_SP : bit;
to_CCR : bit;
to_SR : bit;
OP2out_one : bit;
OP1out_zero : bit;
mem_addsub : bit;
addsub : bit;
directPC : bit;
direct_delta : bit;
directSR : bit;
directCCR : bit;
exg : bit;
get_ea_now : bit;
ea_to_pc : bit;
hold_dwr : bit;
to_USP : bit;
from_USP : bit;
write_lowlong : bit;
write_reminder : bit;
movem_action : bit;
briefext : bit;
get_2ndOPC : bit;
mem_byte : bit;
longaktion : bit;
opcRESET : bit;
opcBF : bit;
opcBFwb : bit;
s2nd_hbits : bit;
end record;
component TG68K_ALU
generic(
MUL_Mode : integer := 0; --0=>16Bit, 1=>32Bit, 2=>switchable with CPU(1), 3=>no MUL,
DIV_Mode : integer := 0 --0=>16Bit, 1=>32Bit, 2=>switchable with CPU(1), 3=>no DIV,
);
port(
clk : in std_logic;
Reset : in std_logic;
clkena_lw : in std_logic:='1';
execOPC : in bit;
exe_condition : in std_logic;
exec_tas : in std_logic;
long_start : in bit;
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_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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