rubyx/lib/register/call_implementation.rb

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module Register
# This implements call logic, which is simply like a c call (not send, that involves lookup and all sorts)
#
# The only target for a call is a MethodDefinition, so we just need to get the address for the code
# and call it.
#
# The only slight snag is that we would need to assemble before getting the address, but to assemble
# we'd have to have finished compiling. So we need a reference.
class CallImplementation
def run block
block.codes.dup.each do |code|
next unless code.is_a? Virtual::FunctionCall
to = RegisterReference.new(:r0)
tmp = RegisterReference.new(:r5)
move = RegisterMachine.instance.ldr( to , tmp , code.to.index )
block.replace(code , [move] )
end
end
end
Virtual::Object.space.add_pass_after CallImplementation , SetImplementation
end