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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