82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
"""
|
|
|
|
"""
|
|
|
|
from ariths_gen.multi_bit_circuits.others import UnsignedPopCount
|
|
from ariths_gen.multi_bit_circuits.others.compare import UnsignedCompareGTE
|
|
from ariths_gen.wire_components import (
|
|
Wire,
|
|
ConstantWireValue0,
|
|
ConstantWireValue1,
|
|
Bus,
|
|
wires
|
|
)
|
|
from ariths_gen.core.arithmetic_circuits import (
|
|
ArithmeticCircuit,
|
|
GeneralCircuit,
|
|
MultiplierCircuit
|
|
)
|
|
|
|
from ariths_gen.core.logic_gate_circuits import (
|
|
MultipleInputLogicGate
|
|
)
|
|
from ariths_gen.one_bit_circuits.one_bit_components import (
|
|
HalfAdder,
|
|
FullAdder,
|
|
FullAdderP,
|
|
TwoOneMultiplexer
|
|
)
|
|
from ariths_gen.one_bit_circuits.logic_gates import (
|
|
AndGate,
|
|
NandGate,
|
|
OrGate,
|
|
NorGate,
|
|
XorGate,
|
|
XnorGate,
|
|
NotGate
|
|
)
|
|
|
|
from ariths_gen.multi_bit_circuits.others import OrReduce
|
|
|
|
|
|
from math import log2, ceil
|
|
|
|
class PopCountCompare(GeneralCircuit):
|
|
"""Class representing a circiut
|
|
if number of ones in a is larger or equal than number of ones in b
|
|
|
|
│ │ │ │ │ │ │ │ │
|
|
▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼
|
|
┌───────┐ ┌─────────┐
|
|
│ popcnt│ │ popcnt │
|
|
└──┬────┘ └─────┬───┘
|
|
│ │
|
|
└───────┐ ┌──────┘
|
|
┌──▼───▼──┐
|
|
│ <= │
|
|
└────┬────┘
|
|
│
|
|
▼
|
|
"""
|
|
|
|
def __init__(self, a: Bus, b: Bus, prefix : str = "", name : str = "cmp_lt", **kwargs):
|
|
self.a = a
|
|
self.b = b
|
|
|
|
super().__init__(name=name, prefix=prefix,
|
|
inputs = [self.a, self.b], out_N=1)
|
|
|
|
p1 = self.add_component(UnsignedPopCount(self.a,
|
|
prefix=f"{prefix}_popcount1",
|
|
inner_component=True)).out
|
|
p2 = self.add_component(UnsignedPopCount(self.b,
|
|
prefix=f"{prefix}_popcount2",
|
|
inner_component=True)).out
|
|
|
|
#N = max(p1.N, p2.N)
|
|
#p1.bus_extend(N)
|
|
#p2.bus_extend(N)
|
|
|
|
red = self.add_component(UnsignedCompareGTE(p1, p2, prefix=f"{prefix}_cmp", inner_component = True))
|
|
self.out.connect_bus(red.out)
|