35 lines
788 B
Python
35 lines
788 B
Python
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from migen.fhdl import structure as f
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from functools import partial
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class Master:
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def __init__(self):
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d = partial(f.Declare, self)
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d("a_o", f.BV(16))
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d("we_o")
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d("d_o", f.BV(32))
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d("d_i", f.BV(32))
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class Slave:
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def __init__(self):
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d = partial(f.Declare, self)
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d("a_i", f.BV(16))
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d("we_i")
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d("d_i", f.BV(32))
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d("d_o", f.BV(32))
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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 GetFragment(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(master.d_i, rb))
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return f.Fragment(comb)
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