| Line 2... |
Line 2... |
--
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--
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-- The Opcode Decoder Table.
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-- The Opcode Decoder Table.
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-- Decodes the given opcode to instruction mnemonics.
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-- Decodes the given opcode to instruction mnemonics.
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-- Also derives the multicycle information.
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-- Also derives the multicycle information.
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--
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--
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-- $Id: opc_table.vhd,v 1.3 2004-07-11 16:51:33 arniml Exp $
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-- $Id: opc_table.vhd,v 1.4 2005-06-11 10:08:43 arniml Exp $
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--
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--
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
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-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
|
--
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--
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-- All rights reserved
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-- All rights reserved
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--
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--
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| Line 47... |
Line 47... |
|
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library ieee;
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_1164.all;
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|
|
use work.t48_pack.word_t;
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use work.t48_pack.word_t;
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use work.decoder_pack.mnemonic_t;
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use work.t48_decoder_pack.mnemonic_t;
|
|
|
entity opc_table is
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entity t48_opc_table is
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|
|
port (
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port (
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opcode_i : in word_t;
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opcode_i : in word_t;
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multi_cycle_o : out std_logic;
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multi_cycle_o : out std_logic;
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mnemonic_o : out mnemonic_t
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mnemonic_o : out mnemonic_t
|
);
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);
|
|
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end opc_table;
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end t48_opc_table;
|
|
|
|
|
use work.decoder_pack.all;
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use work.t48_decoder_pack.all;
|
|
|
architecture rtl of opc_table is
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architecture rtl of t48_opc_table is
|
|
|
begin
|
begin
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
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-- Process opc_decode
|
-- Process opc_decode
|
| Line 408... |
Line 408... |
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- File History:
|
-- File History:
|
--
|
--
|
-- $Log: not supported by cvs2svn $
|
-- $Log: not supported by cvs2svn $
|
|
-- Revision 1.3 2004/07/11 16:51:33 arniml
|
|
-- cleanup copyright notice
|
|
--
|
-- Revision 1.2 2004/03/28 13:10:48 arniml
|
-- Revision 1.2 2004/03/28 13:10:48 arniml
|
-- merge MN_ANLD, MN_MOVD_PP_A and MN_ORLD_PP_A to OUTLD_PP_A
|
-- merge MN_ANLD, MN_MOVD_PP_A and MN_ORLD_PP_A to OUTLD_PP_A
|
--
|
--
|
-- Revision 1.1 2004/03/23 21:31:52 arniml
|
-- Revision 1.1 2004/03/23 21:31:52 arniml
|
-- initial check-in
|
-- initial check-in
|
