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