rubyx/lib/register/enter_implementation.rb
2014-08-26 16:15:00 +03:00

19 lines
670 B
Ruby

module Register
class EnterImplementation
def run block
block.codes.dup.each do |code|
next unless code.is_a? Virtual::MethodEnter
# save return register and create a new frame
to = RegisterReference.new(:r0) # message base
tmp = RegisterReference.new(:r5) # tmp
pc = RegisterReference.new(:pc)
move1 = RegisterMachine.instance.ldr( tmp , pc )
move2 = RegisterMachine.instance.ldr( tmp , to , 3 ) #TODO 3 == return reg, needs constant / layout
block.replace(code , [move1,move2] )
end
end
end
Virtual::BootSpace.space.add_pass_after EnterImplementation , CallImplementation
end