OpenCores
URL https://opencores.org/ocsvn/ft816float/ft816float/trunk

Subversion Repositories ft816float

[/] [ft816float/] [trunk/] [rtl/] [verilog2/] [DPD1000Decode.sv] - Blame information for rev 84

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 56 robfinch
// ============================================================================
2
//        __
3
//   \\__/ o\    (C) 2020  Robert Finch, Waterloo
4
//    \  __ /    All rights reserved.
5
//     \/_//     robfinch@finitron.ca
6
//       ||
7
//
8
//      DPD1000Decode.sv
9
//
10
// BSD 3-Clause License
11
// Redistribution and use in source and binary forms, with or without
12
// modification, are permitted provided that the following conditions are met:
13
//
14
// 1. Redistributions of source code must retain the above copyright notice, this
15
//    list of conditions and the following disclaimer.
16
//
17
// 2. Redistributions in binary form must reproduce the above copyright notice,
18
//    this list of conditions and the following disclaimer in the documentation
19
//    and/or other materials provided with the distribution.
20
//
21
// 3. Neither the name of the copyright holder nor the names of its
22
//    contributors may be used to endorse or promote products derived from
23
//    this software without specific prior written permission.
24
//
25
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
29
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
32
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35
//
36
// ============================================================================
37 55 robfinch
 
38
module DPD1000Decode(clk, i, o);
39
input clk;
40
input [9:0] i;
41
output [11:0] o;
42
 
43
reg [9:0] i1;
44
genvar g;
45
 
46
(* ram_style="block" *)
47
reg [11:0] tbl [0:1023];
48
 
49
generate begin : gDPDTbl
50
for (g = 0; g < 1024; g = g + 1) begin
51
        initial begin
52
                tbl[g] = (g % 10) | (((g / 10) & 15) << 4) | (((g/100) & 15) << 8);
53
        end
54
end
55
end
56
endgenerate
57
 
58
always @(posedge clk)
59
        i1 <= i;
60
 
61
assign o = tbl[i1];
62
 
63
endmodule
64
 
65
module DPDDecodeN(clk, i, o);
66
parameter N=11;
67
input clk;
68
input [N*10-1:0] i;
69
output [N*12-1:0] o;
70
 
71
genvar g;
72
 
73
generate begin : gDPD
74
        for (g = 0; g < N; g = g + 1)
75
                DPD1000Decode(clk, i[g*10+9:g*10], o[g*12+11:g*12]);
76
end
77
endgenerate
78
 
79
endmodule

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.