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 look 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 606

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 634

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 602

def bits
  @bits
end

#cachedInstructions ⇒ Object

Returns the value of attribute cachedInstructions.



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# File 'lib/wilson.rb', line 602

def cachedInstructions
  @cachedInstructions
end

#instructions ⇒ Object 



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

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 602

def procedure
  @procedure
end

#processors ⇒ Object

Returns the value of attribute processors.



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# File 'lib/wilson.rb', line 603

def processors
  @processors
end

#stream ⇒ Object

Returns the value of attribute stream.



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# File 'lib/wilson.rb', line 602

def stream
  @stream
end

Instance Method Details

#assemble(instruction) ⇒ Object 



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# File 'lib/wilson.rb', line 650

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 646

def future_label
  FutureLabel.on self
end

#inspect ⇒ Object 



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# File 'lib/wilson.rb', line 615

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

#instructionFromMessage(msg, *args) ⇒ Object 



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# File 'lib/wilson.rb', line 638

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

#label ⇒ Object 



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# File 'lib/wilson.rb', line 642

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

#supportsProcessor(instructionProcessors) ⇒ Object 



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

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