-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathsystem_functions.v
61 lines (57 loc) · 3.1 KB
/
system_functions.v
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
//////////////////////////////////////////////////////////////////
// //
// Functions for Amber 2 System //
// //
// This file is part of the Amber project //
// http://www.opencores.org/project,amber //
// //
// Description //
// Functions used in more than one module //
// //
// Author(s): //
// - Conor Santifort, [email protected] //
// //
//////////////////////////////////////////////////////////////////
// //
// Copyright (C) 2010 Authors and OPENCORES.ORG //
// //
// This source file may be used and distributed without //
// restriction provided that this copyright statement is not //
// removed from the file and that any derivative work contains //
// the original copyright notice and the associated disclaimer. //
// //
// This source file is free software; you can redistribute it //
// and/or modify it under the terms of the GNU Lesser General //
// Public License as published by the Free Software Foundation; //
// either version 2.1 of the License, or (at your option) any //
// later version. //
// //
// This source 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 Lesser General Public License for more //
// details. //
// //
// You should have received a copy of the GNU Lesser General //
// Public License along with this source; if not, download it //
// from http://www.opencores.org/lgpl.shtml //
// //
//////////////////////////////////////////////////////////////////
// ========================================================
// 32-bit Endian switch
// ========================================================
function [31:0] endian_x32;
input [31:0] data;
begin
endian_x32 = {data[7:0], data[15:8], data[23:16], data[31:24]};
end
endfunction
// ========================================================
// 4-bit Endian switch
// ========================================================
function [3:0] endian_x4;
input [3:0] data;
begin
endian_x4 = {data[0], data[1], data[2], data[3]};
end
endfunction