Added ripple carry adder and started work on C code generation.
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@ -1,2 +1,5 @@
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__pycache__/
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test.py
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Makefile
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*.c
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@ -4,51 +4,51 @@
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class wire():
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def __init__(self, index):
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self.index = index
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self.value = 0
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class bus():
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#inicializace sbernice
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def __init__(self, N=1):
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self.bus = [wire(index=i) for i in range(N)]
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self.N = len(self.bus)
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self.N = N
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#vraci drat na prislusnem indexu sbernice
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def get(self, wire_index):
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return self.bus[wire_index]
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#vraci logickou hodnotu vedenou na drate s prislusnym indexem
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def get_value(self, wire_index):
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return self.bus[wire_index].value
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#pripojeni vstupni, vystupni hodnoty komponenty k sbernici
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def connect(self, wire_index, component_output_value):
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self.bus[wire_index].value = component_output_value
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#KOMPONENTY HRADEL
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#jednovstupove
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class not_gate():
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def __init__(self, input_a):
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self.input_a = input_a
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if self.input_a == 1:
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if input_a == 1:
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self.y = 0
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else:
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self.y = 1
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class two_input_gate():
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#dvouvstupove
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class or_gate():
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def __init__(self, input_a, input_b):
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self.input_a = input_a
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self.input_b = input_b
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class or_gate(two_input_gate):
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def __init__(self, input_a, input_b):
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super().__init__(input_a, input_b)
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if (self.input_a == 1 or self.input_b == 1):
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if (input_a == 1 or input_b == 1):
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self.y = 1
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else:
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self.y = 0
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class xor_gate(two_input_gate):
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class xor_gate():
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def __init__(self, input_a, input_b):
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if (input_a == 1 and input_b == 0) or (input_a == 0 and input_b == 1):
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self.y = 1
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else:
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self.y = 0
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class and_gate(two_input_gate):
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class and_gate():
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def __init__(self, input_a, input_b):
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if input_a == 1 and input_b == 1:
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self.y = 1
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@ -65,14 +65,31 @@ class arithmetic_circuit():
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def add_component(self, component):
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self.component_list.append(component)
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#Export do jinych reprezentaci
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def to_C():
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pass
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def get_previous_component(self):
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return self.component_list[-1]
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#zpravidla posledni bit ve vystupnim vektoru bitu
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def get_carry_out(self):
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return self.out.get(-1).value
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def get_sum_out(self, index):
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return self.out.get_value(index)
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#Export do jinych reprezentaci
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def to_C(self, filename):
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with open(filename,'w') as f:
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f.write('#include <stdint.h>\n\n')
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f.write(f'uint64_t {self.circuit_type} () \n')
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for component in self.component_list:
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print (component)
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class half_adder(arithmetic_circuit):
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def __init__(self, input_a, input_b):
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super().__init__()
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self.circuit_type = "ha"
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#2 draty pro vystupy komponenty (sum, cout)
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self.out = bus(2)
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@ -87,10 +104,14 @@ class half_adder(arithmetic_circuit):
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obj_and_gate = and_gate(input_a, input_b)
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self.add_component(obj_and_gate)
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self.out.connect(1,obj_and_gate.y)
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def get_sum_out(self):
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return self.out.get(0).value
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class full_adder(arithmetic_circuit):
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def __init__(self, input_a, input_b, carry_in):
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super().__init__()
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self.circuit_type = "fa"
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#2 draty pro vystupy komponenty (sum, cout)
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self.out = bus(2)
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@ -119,4 +140,34 @@ class full_adder(arithmetic_circuit):
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#todo nechat?
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self.propagate = propagate_xor_gate1.y
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self.generate = generate_and_gate1.y
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self.generate = generate_and_gate1.y
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def get_sum_out(self):
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return self.out.get(0).value
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class ripple_carry_adder(arithmetic_circuit):
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def __init__(self, input_bus_a, input_bus_b):
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super().__init__()
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#todo zeptat se
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N = max(input_bus_a.N,input_bus_b.N)
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self.circuit_type = "rca_"+str(N)
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self.out = bus(N+1)
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#postupne pridani jednobitovych scitacek
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for i in range(N):
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#prvni je polovicni scitacka
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if i == 0:
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obj_ha = half_adder(input_bus_a.get_value(i), input_bus_b.get_value(i))
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self.add_component(obj_ha)
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self.out.connect(i, obj_ha.get_sum_out())
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else:
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obj_fa = full_adder(input_bus_a.get_value(i), input_bus_b.get_value(i), self.get_previous_component().get_carry_out())
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self.add_component(obj_fa)
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self.out.connect(i, obj_fa.get_sum_out())
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if i == (N-1):
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self.out.connect(N, obj_fa.get_carry_out())
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def to_C(self, filename):
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super().to_C(filename)
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#todo
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