Forgive me if I am overlooking something really obvious, but while we're almost on the topic, what is it prevents one from doing ordinary message sends from C code by having the equivalent of the exact bytecodes of a message send as a sequence of (Slang-generated) C code? This is what I thought that exception code was doing when it triggers a method for block unwinding or something.
Is it something like the interpreter not being reentrant?
Henrik