dlx/ir.vhdl

    1 --------------------------------------------------------------------------
    2 --
    3 --  Copyright (C) 1993, Peter J. Ashenden
    4 --  Mail:	Dept. Computer Science
    5 --		University of Adelaide, SA 5005, Australia
    6 --  e-mail:	petera@cs.adelaide.edu.au
    7 --
    8 --  This program is free software; you can redistribute it and/or modify
    9 --  it under the terms of the GNU General Public License as published by
   10 --  the Free Software Foundation; either version 1, or (at your option)
   11 --  any later version.
   12 --
   13 --  This program is distributed in the hope that it will be useful,
   14 --  but WITHOUT ANY WARRANTY; without even the implied warranty of
   15 --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   16 --  GNU General Public License for more details.
   17 --
   18 --  You should have received a copy of the GNU General Public License
   19 --  along with this program; if not, write to the Free Software
   20 --  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   21 --
   22 --------------------------------------------------------------------------
   23 --
   24 --  $RCSfile: ir.vhdl,v $  $Revision: 1.1 $  $Date: 2000/05/08 14:36:48 $
   25 --
   26 --------------------------------------------------------------------------
   27 --
   28 --  Entity declaration for instruction register.
   29 --
   30 
   31 
   32 use work.dlx_types.all,
   33     work.dlx_instr.immed_size;
   34 
   35 entity ir is
   36   generic (Tpd : Time;
   37            tag : string := "";
   38            origin_x, origin_y : real := 0.0);
   39   port (d : in dlx_word;
   40         immed_q1, immed_q2 : out dlx_word_bus bus;
   41         ir_out : out dlx_word;
   42         latch_en : in bit;
   43         immed_sel1, immed_sel2 : in immed_size;
   44         immed_unsigned1, immed_unsigned2 : in bit;
   45         immed_en1, immed_en2 : in bit);
   46 end ir;
   47 

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