litex/examples/basic/multi_accumulator.py
Sebastien Bourdeauducq e5fc9cc675 transform: unroll
2012-10-12 13:16:39 +02:00

19 lines
453 B
Python

from migen.fhdl.structure import *
from migen.transform.unroll import unroll_sync
from migen.fhdl import verilog
x = Signal(BV(4))
y = Signal(BV(4))
acc = Signal(BV(4))
sync = [
acc.eq(acc + x + y)
]
n = 5
xs = [Signal(BV(4)) for i in range(n)]
ys = [Signal(BV(4)) for i in range(n)]
accs = [Signal(BV(4)) for i in range(n)]
sync_u = unroll_sync(sync, {x: xs, y: ys}, {acc: accs})
print(verilog.convert(Fragment(sync=sync_u), ios=set(xs+ys+accs)))