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pervognsen/funnel_shifter_unit.py

Last active July 30, 2018 12:47
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funnel_shifter_unit.py
def funnel_shifter_unit(x, n, dir, shift, arith):
s = rep(arith & x[-1], len(x)-1)
low = when(dir, x[:-1], when(shift, s, x[1:]))
mid = when(dir, x[-1], x[0])
high = when(dir, when(shift, s, x[:-1]), x[1:])
return funnel_shifter(low @ mid @ high, when(dir, n, ~n))
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