43 lines
838 B
Ruby
43 lines
838 B
Ruby
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require "eventable"
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class Interpreter
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include Eventable
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attr_accessor :instruction
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attr_accessor :block
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attr_accessor :registers
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def initialize
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@registers = Hash[(0...12).collect{|i| ["r#{i}" , "undefined"]}]
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end
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def start block
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set_block block
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end
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def set_block block
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return if @block == block
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old = @block
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@block = block
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trigger(:block_changed , old , block)
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set_instruction block.codes.first
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end
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def set_instruction i
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return if @instruction == i
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old = @instruction
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@instruction = i
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trigger(:instruction_changed, old , i)
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end
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def tick
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name = @instruction.class.name.split("::").last
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fetch = send "execute_#{name}"
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return unless fetch
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get_next_intruction
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end
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def execute_Branch
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target = @instruction.to
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set_block target
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end
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end
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