35 lines
795 B
Python
35 lines
795 B
Python
from migen.fhdl import structure as f
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from migen.bus.simple import Simple
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_desc = [
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(True, "a", 14),
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(True, "we", 1),
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(True, "d", 32),
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(False, "d", 32)
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]
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class Master(Simple):
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def __init__(self, name=""):
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Simple.__init__(self, _desc, False, name)
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class Slave(Simple):
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def __init__(self, name=""):
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Simple.__init__(self, _desc, True, name)
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class Interconnect:
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def __init__(self, master, slaves):
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self.master = master
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self.slaves = slaves
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def get_fragment(self):
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a = f.Assign
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comb = []
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rb = f.Constant(0, f.BV(32))
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for slave in self.slaves:
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comb.append(a(slave.a_i, self.master.a_o))
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comb.append(a(slave.we_i, self.master.we_o))
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comb.append(a(slave.d_i, self.master.d_o))
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rb = rb | slave.d_o
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comb.append(a(self.master.d_i, rb))
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return f.Fragment(comb)
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