18 Oct '13, 2am

Always a good day when I get to spend hours in the @rubinius instruction set:

Registers what to happen when an exception wants to unwind through the current invocation. Operand ip specifies where to set the instruction pointer if used. Operand type is either 0 for if the value should be used in rescue style (not run when unwinding because of a return caused by raise_return ) or 1 for ensure style (always used). The registrations are nested within the current invocation and are automatically removed from the registry when they are used. The pop_unwind instruction can be used to remove an unused registration.

Full article: http://rubini.us/doc/en/virtual-machine/instructions/

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