This commit is contained in:
Torsten Ruger 2014-09-23 19:23:52 +03:00
parent c5765d4255
commit f5ec7f3bdb

View File

@ -5,14 +5,14 @@ module Register
next unless code.is_a? Virtual::MethodReturn
new_codes = []
# move the current message to new_message
new_codes << RegisterMachine.instance.mov( Slot.MESSAGE_REGISTER , Slot::NEW_MESSAGE_REGISTER )
new_codes << RegisterMachine.instance.mov( Virtual::Slot::MESSAGE_REGISTER , Virtual::Slot::NEW_MESSAGE_REGISTER )
# and restore the message from saved value in new_message
new_codes << RegisterMachine.instance.ldr( Slot.MESSAGE_REGISTER ,Slot.NEW_MESSAGE_REGISTER , Virtual::Slot::MESSAGE_CALLER )
new_codes << RegisterMachine.instance.ldr( Virtual::Slot::MESSAGE_REGISTER ,Virtual::Slot::NEW_MESSAGE_REGISTER , Virtual::Slot::MESSAGE_CALLER )
# "roll out" self and frame into their registers
new_codes << RegisterMachine.instance.ldr( Slot.SELF_REGISTER ,Slot.MESSAGE_REGISTER , Virtual::Slot::MESSAGE_SELF )
new_codes << RegisterMachine.instance.ldr( Slot.FRAME_REGISTER ,Slot.MESSAGE_REGISTER , Virtual::Slot::MESSAGE_FRAME )
new_codes << RegisterMachine.instance.ldr( Virtual::Slot::SELF_REGISTER ,Virtual::Slot::MESSAGE_REGISTER , Virtual::Slot::MESSAGE_SELF )
new_codes << RegisterMachine.instance.ldr( Virtual::Slot::FRAME_REGISTER ,Virtual::Slot::MESSAGE_REGISTER , Virtual::Slot::MESSAGE_FRAME )
#load the return address into pc, affecting return. (other cpus have commands for this, but not arm)
new_codes << RegisterMachine.instance.ldr( :pc ,Slot.MESSAGE_REGISTER , Virtual::Slot::MESSAGE_RETURN_ADDRESS )
new_codes << RegisterMachine.instance.ldr( :pc ,Virtual::Slot::MESSAGE_REGISTER , Virtual::Slot::MESSAGE_RETURN_ADDRESS )
block.replace(code , new_codes )
end
end