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for a given maximum comparator width, determine a list of comparator stages
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| MAX_COMPARATOR_WIDTH = 24 | |
| def stages(n, max_width=MAX_COMPARATOR_WIDTH): | |
| s = [] | |
| while n > 1: | |
| q = n // max_width | |
| r = n % max_width | |
| s.append([max_width]*q + [r]) | |
| n += (max_width - 1) | |
| n //= max_width | |
| return s |
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