Class: Mux2

Inherits:
Inst show all
Defined in:
lib/Mux2.rb

Overview

This class defines the 2-to-1 Multiplexer part

Instance Attribute Summary

Attributes inherited from Inst

#inputs, #name, #nodes, #outputs

Instance Method Summary collapse

Methods inherited from Inst

#get_port

Constructor Details

#initialize(name) ⇒ Mux2

This method is called when a new object is instantiated, it takes the name of the Inst object (name) as its only argument. It is responsible for defining applicable nodes, then calling its superclass, Inst, to complete other tasks.



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# File 'lib/Mux2.rb', line 5

def initialize(name)
  super(name,[0,1,2,3],[10])
end

Instance Method Details

#abelout ⇒ Object

This method defines the connections held by the ports of this object and returns the specific ABEL code to be output for this object based on the connections on its input ports.



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# File 'lib/Mux2.rb', line 11

def abelout
  # make these class variables just for consistency's sake
  @p0 = self.get_port("p0").connections.collect{|p| p.name}.to_s
  @p1 = self.get_port("p1").connections.collect{|p| p.name}.to_s
  @p2 = self.get_port("p2").connections.collect{|p| p.name}.to_s
  @p3 = self.get_port("p3").connections.collect{|p| p.name}.to_s
  
  s = ""
  s << "\n\"active low enabled MUX2\nWHEN (#{@p0} == 1) THEN\n\t#{self.name}p10 = 0;\n"
  s << "else WHEN (!#{@p0} & !#{@p1}) THEN\n\t#{self.name}p10 = #{@p2};\n"
  s << "else WHEN (!#{@p0} & #{@p1}) THEN\n\t#{self.name}p10 = #{@p3};\n"        
end