35 lines
1.1 KiB
Python
Executable File
35 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python
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import random
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import argparse
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def main():
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desc = """
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Generate random access pattern.
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Each address in range [base, base+length) will be accessed only once,
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but in random order. This ensures that no data will be overwritten.
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"""
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parser = argparse.ArgumentParser(description=desc)
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parser.add_argument('base', help='Base address')
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parser.add_argument('length', help='Number of (address, data) pairs')
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parser.add_argument('data_width', help='Width of data (used to determine max value)')
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parser.add_argument('--seed', help='Use given random seed (int)')
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args = parser.parse_args()
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if args.seed:
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random.seed(int(args.seed, 0))
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base = int(args.base, 0)
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length = int(args.length, 0)
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data_width = int(args.data_width, 0)
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address = list(range(length))
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random.shuffle(address)
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data = [random.randrange(0, 2**data_width) for _ in range(length)]
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for a, d in zip(address, data):
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print('0x{:08x},0x{:08x}'.format(a, d))
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if __name__ == "__main__":
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main()
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