18 lines
645 B
Ruby
18 lines
645 B
Ruby
module Register
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class EnterImplementation
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def run block
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block.codes.dup.each do |code|
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next unless code.is_a? Virtual::MethodEnter
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new_codes = []
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# save return register and create a new frame
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# lr is link register, ie where arm stores the return address when call is issued
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new_codes << RegisterMachine.instance.str( :lr , Virtual::Slot::MESSAGE_REGISTER , Virtual::Slot::MESSAGE_RETURN_ADDRESS )
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new_codes << Virtual::NewFrame.new
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block.replace(code , new_codes )
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end
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end
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end
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Virtual::BootSpace.space.add_pass_after EnterImplementation , CallImplementation
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end
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