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
|
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2004 by Wilson Snyder.
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
reg signed [64+15:0] data;
integer i;
integer b;
reg signed [64+15:0] srs;
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
if (cyc==2) begin
data <= 80'h0;
data[75] <= 1'b1;
data[10] <= 1'b1;
end
if (cyc==3) begin
for (i=0; i<85; i=i+1) begin
srs = data>>>i;
//$write (" %x >>> %d == %x\n",data,i,srs);
for (b=0; b<80; b=b+1) begin
if (srs[b] != (b==(75-i) || b==(10-i))) $stop;
end
end
end
if (cyc==10) begin
data <= 80'h0;
data[79] <= 1'b1;
data[10] <= 1'b1;
end
if (cyc==12) begin
for (i=0; i<85; i=i+1) begin
srs = data>>>i;
//$write (" %x >>> %d == %x\n",data,i,srs);
for (b=0; b<80; b=b+1) begin
if (srs[b] != (b>=(79-i) || b==(10-i))) $stop;
end
end
end
if (cyc==20) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
|
