18 lines
561 B
Ruby
18 lines
561 B
Ruby
module Arm
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class SyscallImplementation
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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? Register::Syscall
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raise "uups" unless code.name == :putstring
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new_codes = [ ArmMachine.mov( :r1 , 20 ) ]
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new_codes << ArmMachine.ldr( :r0 , Virtual::Slot::MESSAGE_REGISTER, Virtual::SELF_INDEX)
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new_codes << ArmMachine.mov( :r7 , 4 )
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new_codes << ArmMachine.swi( 0 )
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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.machine.add_pass "Arm::SyscallImplementation"
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end
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