diff options
Diffstat (limited to 'icefuzz/make_iopack.py')
-rw-r--r-- | icefuzz/make_iopack.py | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/icefuzz/make_iopack.py b/icefuzz/make_iopack.py new file mode 100644 index 0000000..1ad41ee --- /dev/null +++ b/icefuzz/make_iopack.py @@ -0,0 +1,59 @@ +#!/usr/bin/python + +from __future__ import division +from __future__ import print_function +from fuzzconfig import * +import numpy as np +import os + +from numpy.random import randint, choice, permutation + +num_xor = 8 +num_luts = 8 +num_outputs_range = (5, 20) + +os.system("rm -rf work_iopack") +os.mkdir("work_iopack") + +def get_pin_directions(): + pindirs = ["i" for i in range(len(pins))] + for i in range(randint(num_outputs_range[0], num_outputs_range[1])): + pindirs[randint(len(pins))] = "o" + return pindirs + +def get_nearby_inputs(p, n, r): + while True: + ipins = list() + for i in range(-r, +r): + ip = (p + i + len(pins)) % len(pins) + if pindirs[ip] == "i": + ipins.append(ip) + if len(ipins) >= n: + break + r += 4 + return [choice(ipins) for i in range(n)] + +for idx in range(num): + with open("work_iopack/iopack_%02d.v" % idx, "w") as f: + pindirs = get_pin_directions() + print("module top(%s);" % ", ".join(["%sput p%d" % ("in" if pindirs[i] == "i" else "out", i) for i in range(len(pins))]), file=f) + for outp in range(len(pins)): + if pindirs[outp] == "o": + xor_nets = set(["%sp%d" % (choice(["~", ""]), p) for p in get_nearby_inputs(outp, num_xor, 2 + randint(10))]) + for i in range(num_luts): + print(" localparam [15:0] p%d_lut%d = 16'd %d;" % (outp, i, randint(2**16)), file=f) + print(" wire p%d_in%d = p%d_lut%d >> {%s};" % (outp, i, outp, i, + ", ".join(["p%d" % p for p in get_nearby_inputs(outp + randint(-10, +11), 4, 4)])), file=f) + xor_nets.add("%sp%d_in%d" % (choice(["~", ""]), outp, i)) + print(" assign p%d = ^{%s};" % (outp, ", ".join(sorted(xor_nets))), file=f) + print("endmodule", file=f) + with open("work_iopack/iopack_%02d.pcf" % idx, "w") as f: + for i in range(len(pins)): + print("set_io p%d %s" % (i, pins[i]), file=f) + +with open("work_iopack/Makefile", "w") as f: + print("all: %s" % " ".join(["iopack_%02d.bin" % i for i in range(num)]), file=f) + for i in range(num): + print("iopack_%02d.bin:" % i, file=f) + print("\t-bash ../icecube.sh iopack_%02d > iopack_%02d.log 2>&1 && rm -rf iopack_%02d.tmp || tail iopack_%02d.log" % (i, i, i, i), file=f) + |