Class: Wilson::MachineCode

Inherits:
Object show all
Defined in:
lib/wilson.rb

Overview

MachineCode is an abstract machine that has subclasses for each concrete machine type that you can write assembly language for. Right now this library only supports X86, so loko at MachineCodeX86 for more details on how to use it.

Direct Known Subclasses

MachineCodeX86

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MachineCode

Returns a new instance of MachineCode.



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# File 'lib/wilson.rb', line 592

def initialize
  self.procedure  = nil
  self.bits       = self.defaultBits
  self.processors = self.defaultProcessors
  self.stream     = []

  self.setupMachine
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(msg, *args) ⇒ Object 



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# File 'lib/wilson.rb', line 620

def method_missing msg, *args
  super unless self.instructionFromMessage(msg, *args).assemble
end

Instance Attribute Details

#bits ⇒ Object

Returns the value of attribute bits.



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# File 'lib/wilson.rb', line 588

def bits
  @bits
end

#cachedInstructions ⇒ Object

Returns the value of attribute cachedInstructions.



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# File 'lib/wilson.rb', line 588

def cachedInstructions
  @cachedInstructions
end

#instructions ⇒ Object 



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# File 'lib/wilson.rb', line 614

def instructions
  self.cachedInstructions ||= @instructions.select { |e|
    self.supportsProcessor e.processors
  }
end

#procedure ⇒ Object

Returns the value of attribute procedure.



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# File 'lib/wilson.rb', line 588

def procedure
  @procedure
end

#processors ⇒ Object

Returns the value of attribute processors.



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# File 'lib/wilson.rb', line 589

def processors
  @processors
end

#stream ⇒ Object

Returns the value of attribute stream.



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# File 'lib/wilson.rb', line 588

def stream
  @stream
end

Instance Method Details

#assemble(instruction) ⇒ Object 



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# File 'lib/wilson.rb', line 636

def assemble instruction
  raise "no"
  #     aBlock on: MessageNotUnderstood do: [:ex |
  #         ex originator class = BlockClosure ifFalse: [ex pass].
  #         ex resume: (ex originator value m perform: ex parameter selector withArguments: ex parameter arguments)]</body>
end

#future_label ⇒ Object 



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# File 'lib/wilson.rb', line 632

def future_label
  FutureLabel.on self
end

#inspect ⇒ Object 



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# File 'lib/wilson.rb', line 601

def inspect
  "#{self.class}#{stream.inspect}"
end

#instructionFromMessage(msg, *args) ⇒ Object 



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# File 'lib/wilson.rb', line 624

def instructionFromMessage msg, *args
  Instruction.on_message self, [msg, *args]
end

#label ⇒ Object 



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# File 'lib/wilson.rb', line 628

def label
  Label.on_at(self, stream.size)
end

#supportsProcessor(instructionProcessors) ⇒ Object 



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# File 'lib/wilson.rb', line 610

def supportsProcessor instructionProcessors
  processors.any? { |e| instructionProcessors.include? e }
end