rubyx/lib/register/return_implementation.rb

16 lines
586 B
Ruby

module Register
class ReturnImplementation
def run block
block.codes.dup.each do |code|
next unless code.is_a? Virtual::MethodReturn
#load the return address into pc, affecting return. (other cpus have commands for this, but not arm)
message = RegisterReference.new(:r0)
pc = RegisterReference.new(:pc)
move1 = RegisterMachine.instance.ldr( pc ,message , Virtual::Message::RETURN )
block.replace(code , [move1] )
end
end
end
Virtual::BootSpace.space.add_pass_after ReturnImplementation , CallImplementation
end