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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
`timescale 1ns/1ps
module test_data_path;
reg clk;
reg jump;
reg mem_read;
reg mem_write;
reg alu_src;
reg reg_dst;
reg mem_to_reg;
reg reg_write;
reg bne;
reg beq;
reg [1:0]alu_op;
reg [3:0]opcode;
data_path uut(
.clk(clk),
.jump(jump),
.mem_read(mem_read),
.mem_write(mem_write),
.alu_src(alu_src),
.reg_dst(reg_dst),
.mem_to_reg(mem_to_reg),
.reg_write(reg_write),
.bne(bne),
.beq(beq),
.alu_op(alu_op),
.opcode(opcode)
);
initial begin
$display("Start testing data path");
$dumpfile("test_data_path.vcd");
$dumpvars(0,test_data_path);
clk=0;
jump=0;
mem_read=0;
mem_write=0;
alu_src=0;
reg_dst=0;
mem_to_reg=0;
reg_write=0;
bne=0;
beq=0;
alu_op=2'b00;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
#10
clk=1;
#10
clk=0;
end
initial begin
$monitor("At time=%t",$time);
end
endmodule
|