source: XOpenSparcT1/trunk/T1-CPU/ifu/sparc_ifu_incr46.v @ 6

Revision 6, 1.4 KB checked in by pntsvt00, 13 years ago (diff)

versione iniziale opensparc

Line 
1// ========== Copyright Header Begin ==========================================
2//
3// OpenSPARC T1 Processor File: sparc_ifu_incr46.v
4// Copyright (c) 2006 Sun Microsystems, Inc.  All Rights Reserved.
5// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
6//
7// The above named program is free software; you can redistribute it and/or
8// modify it under the terms of the GNU General Public
9// License version 2 as published by the Free Software Foundation.
10//
11// The above named program is distributed in the hope that it will be
12// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14// General Public License for more details.
15//
16// You should have received a copy of the GNU General Public
17// License along with this work; if not, write to the Free Software
18// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
19//
20// ========== Copyright Header End ============================================
21////////////////////////////////////////////////////////////////////////
22/*
23//  Description:       
24//  Contains the pc incrementer.
25*/
26
27module sparc_ifu_incr46(a, a_inc, ofl);
28   input  [45:0]  a;
29   output [45:0]  a_inc;
30   output         ofl;
31   
32   reg [45:0]     a_inc;
33   reg            ofl;
34   
35   always @ (a)
36     begin
37              a_inc = a + (46'b1);
38              ofl = (~a[45]) & a_inc[45];
39     end
40   
41   
42   
43endmodule // sparc_ifu_incr46
44
45
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