mirror of
https://github.com/YosysHQ/yosys
synced 2025-10-31 03:32:29 +00:00
82 lines
4.1 KiB
Python
82 lines
4.1 KiB
Python
#!/usr/bin/env python3
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import argparse
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import sys
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import random
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from contextlib import contextmanager
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@contextmanager
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def redirect_stdout(new_target):
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old_target, sys.stdout = sys.stdout, new_target
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try:
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yield new_target
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finally:
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sys.stdout = old_target
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def random_plus_x():
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return "%s x" % random.choice(['+', '+', '+', '-', '-', '|', '&', '^'])
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def maybe_plus_x(expr):
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if random.randint(0, 4) == 0:
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return "(%s %s)" % (expr, random_plus_x())
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else:
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return expr
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parser = argparse.ArgumentParser(formatter_class = argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument('-S', '--seed', type = int, help = 'seed for PRNG')
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parser.add_argument('-c', '--count', type = int, default = 100, help = 'number of test cases to generate')
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args = parser.parse_args()
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if args.seed is not None:
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print("PRNG seed: %d" % args.seed)
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random.seed(args.seed)
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for idx in range(args.count):
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with open('temp/uut_%05d.v' % idx, 'w') as f:
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with redirect_stdout(f):
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if random.choice(['bin', 'uni']) == 'bin':
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print('module uut_%05d(a, b, c, d, x, s, y);' % (idx))
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op = random.choice([
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random.choice(['+', '-', '*', '/', '%']),
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random.choice(['<', '<=', '==', '!=', '===', '!==', '>=', '>' ]),
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random.choice(['<<', '>>', '<<<', '>>>']),
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random.choice(['|', '&', '^', '~^', '||', '&&']),
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])
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print(' input%s [%d:0] a;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] b;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] c;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] d;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] x;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input s;')
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print(' output [%d:0] y;' % random.randint(0, 8))
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print(' assign y = (s ? %s(%s %s %s) : %s(%s %s %s))%s;' %
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(random.choice(['', '$signed', '$unsigned']), maybe_plus_x('a'), op, maybe_plus_x('b'),
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random.choice(['', '$signed', '$unsigned']), maybe_plus_x('c'), op, maybe_plus_x('d'),
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random_plus_x() if random.randint(0, 4) == 0 else ''))
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print('endmodule')
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else:
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print('module uut_%05d(a, b, x, s, y);' % (idx))
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op = random.choice(['~', '-', '!'])
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print(' input%s [%d:0] a;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] b;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input%s [%d:0] x;' % (random.choice(['', ' signed']), random.randint(0, 8)))
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print(' input s;')
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print(' output [%d:0] y;' % random.randint(0, 8))
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print(' assign y = (s ? %s(%s%s) : %s(%s%s))%s;' %
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(random.choice(['', '$signed', '$unsigned']), op, maybe_plus_x('a'),
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random.choice(['', '$signed', '$unsigned']), op, maybe_plus_x('b'),
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random_plus_x() if random.randint(0, 4) == 0 else ''))
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print('endmodule')
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with open('temp/uut_%05d.ys' % idx, 'w') as f:
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with redirect_stdout(f):
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print('read_verilog temp/uut_%05d.v' % idx)
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print('proc;;')
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print('copy uut_%05d gold' % idx)
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print('rename uut_%05d gate' % idx)
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print('tee -a temp/all_share_log.txt log')
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print('tee -a temp/all_share_log.txt log #job# uut_%05d' % idx)
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print('tee -a temp/all_share_log.txt wreduce')
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print('tee -a temp/all_share_log.txt share -aggressive gate')
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print('miter -equiv -flatten -ignore_gold_x -make_outputs -make_outcmp gold gate miter')
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print('sat -set-def-inputs -verify -prove trigger 0 -show-inputs -show-outputs miter')
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