Class: Dffpc

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

Overview

This class defines the D Flip-Flop 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) ⇒ Dffpc

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/Dffpc.rb', line 6

def initialize(name)
  # TODO - make this cleaner, should either override the whole superclass or pass it the type of the node
  super(name,[0,1,2,3],[4,5],false)
  [4,5].each do |d|
    # define these nodes separately from super because they are of type reg
    nodes<<"#{name}p#{d}\tnode istype 'reg';\n"
  end
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/Dffpc.rb', line 17

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
  @p4 = self.get_port("p4").connections.collect{|p| p.name}.to_s
  @p5 = self.get_port("p5").connections.collect{|p| p.name}.to_s
  @p4 = self.get_port("p4").connections.collect{|p| p.name}.to_s  
  @p5 = self.get_port("p5").connections.collect{|p| p.name}.to_s  
  
  s = "\n\"d-ff\n"
  unless @p4.empty?
    s << "#{self.name}p4.ap = !#{@p0};\n#{self.name}p4.ar = !#{@p3};\n#{self.name}p4.clk = #{@p1};\n"
    s << "#{self.name}p4 := #{@p2};\n\n"
  end
  unless @p5.empty?
    s << "#{self.name}p5.ap = !#{@p0};\n#{self.name}p5.ar = !#{@p3};\n#{self.name}p5.clk = #{@p1};\n"
    s << "#{self.name}p5 := !#{@p2};\n\n"
  end
  s
end