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#!/usr/bin/env python3
from fuzzconfig import *
import numpy as np
import os
device_class = os.getenv("ICEDEVICE")
working_dir = "work_%s_prim" % (device_class, )
os.system("rm -rf " + working_dir)
os.mkdir(working_dir)
w = len(pins) // 4
for idx in range(num):
with open(working_dir + "/prim_%02d.v" % idx, "w") as f:
clkedge = np.random.choice(["pos", "neg"])
print("module top(input clk, input [%s:0] a, b, output reg x, output reg [%s:0] y);""" % ( w-1, w-1 ), file=f)
print(" reg [%s:0] aa, bb;""" % ( w-1 ), file=f)
print(" always @(%sedge clk) aa <= a;" % clkedge, file=f)
print(" always @(%sedge clk) bb <= b;" % clkedge, file=f)
if np.random.choice([True, False]):
print(" always @(%sedge clk) x <= %s%s;" % (clkedge, np.random.choice(["^", "&", "|", "!"]), np.random.choice(["a", "b", "y"])), file=f)
else:
print(" always @(%sedge clk) x <= a%sb;" % (clkedge, np.random.choice(["&&", "||"])), file=f)
if np.random.choice([True, False]):
print(" always @(%sedge clk) y <= a%sb;" % (clkedge, np.random.choice(["+", "-", "&", "|"])), file=f)
else:
print(" always @(%sedge clk) y <= %s%s;" % (clkedge, np.random.choice(["~", "-", ""]), np.random.choice(["a", "b"])), file=f)
print("endmodule", file=f)
with open(working_dir + "/prim_%02d.pcf" % idx, "w") as f:
p = np.random.permutation(pins)
used_pins = []
if np.random.choice([True, False]):
for i in range(w):
print("set_io a[%d] %s" % (i, p[i]), file=f)
used_pins.append(p[i])
if np.random.choice([True, False]):
for i in range(w):
print("set_io b[%d] %s" % (i, p[w+i]), file=f)
used_pins.append(p[w+i])
if np.random.choice([True, False]):
for i in range(w):
print("set_io y[%d] %s" % (i, p[2*w+i]), file=f)
used_pins.append(p[2*w+i])
if np.random.choice([True, False]):
print("set_io x %s" % p[3*w], file=f)
used_pins.append(p[3*w])
if np.random.choice([True, False]):
print("set_io y %s" % p[3*w+1], file=f)
used_pins.append(p[3*w+1])
# There is a low but non-zero probability, particularly on devices with
# fewer pins and GBINs such as the UltraPlus, that a permutation will be
# picked where all of the GBINs are already constrained at this point,
# hence icecube fails to assign clk successfully. This is fixed by
# forcing clock assignment if no GBINs are free.
global_free = False
for glbi in gpins:
if not glbi in used_pins:
global_free = True
break
if np.random.choice([True, False]) or not global_free:
print("set_io clk %s" % p[3*w+2], file=f)
output_makefile(working_dir, "prim")
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