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annotate python/ppci/bitfun.py @ 348:442fb043d149

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Added log option to zcc
author Windel Bouwman
date Sat, 08 Mar 2014 15:32:33 +0100
parents 3bb7dcfe5529
children 98ff43cfdd36
rev   line source
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3 def rotate_right(v, n):
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4 """ bit-wise Rotate right n times """
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5 mask = (2**n) - 1
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6 mask_bits = v & mask
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7 return (v >> n) | (mask_bits << (32 - n))
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9 def rotate_left(v, n):
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10 assert n >= 0
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11 assert n < 32
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12 return rotate_right(v, 32 - n)
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