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
|
#!/usr/bin/env python3
from fuzzconfig import *
import numpy as np
import os
device_class = os.getenv("ICEDEVICE")
working_dir = "work_%s_fflogic" % (device_class, )
os.system("rm -rf " + working_dir)
os.mkdir(working_dir)
w = (len(pins) - 4) // 5
def random_op():
return np.random.choice(["+", "-", "*", "^", "&", "|"])
def print_seq_op(dst, src1, src2, op, f):
mode = np.random.choice(list("abc"))
negreset = np.random.choice(["!", ""])
enable = np.random.choice(["if (en) ", ""])
if mode == "a":
print(" always @(%sedge clk) begin" % np.random.choice(["pos", "neg"]), file=f)
print(" %s%s <= %s %s %s;" % (enable, dst, src1, op, src2), file=f)
print(" end", file=f)
elif mode == "b":
print(" always @(%sedge clk) begin" % np.random.choice(["pos", "neg"]), file=f)
print(" if (%srst)" % negreset, file=f)
print(" %s <= %d;" % (dst, np.random.randint(2**16)), file=f)
print(" else", file=f)
print(" %s%s <= %s %s %s;" % (enable, dst, src1, op, src2), file=f)
print(" end", file=f)
elif mode == "c":
print(" always @(%sedge clk, %sedge rst) begin" % (np.random.choice(["pos", "neg"]), "neg" if negreset == "!" else "pos"), file=f)
print(" if (%srst)" % negreset, file=f)
print(" %s <= %d;" % (dst, np.random.randint(2**16)), file=f)
print(" else", file=f)
print(" %s%s <= %s %s %s;" % (enable, dst, src1, op, src2), file=f)
print(" end", file=f)
else:
assert False
for idx in range(num):
with open(working_dir + "/fflogic_%02d.v" % idx, "w") as f:
print("module top(input clk, rst, en, input [%d:0] a, b, c, d, output [%d:0] y, output z);" % (w-1, w-1), file=f)
print(" reg [%d:0] p, q;" % (w-1,), file=f)
print_seq_op("p", "a", "b", random_op(), f)
print_seq_op("q", "c", "d", random_op(), f)
print(" assign y = p %s q, z = clk ^ rst ^ en;" % random_op(), file=f)
print("endmodule", file=f)
output_makefile(working_dir, "fflogic")
|
