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  • Damien George's avatar
    py: Add mp_pending_exception global variable, for VM soft interrupt. · 124df6f8
    Damien George authored
    This allows to implement KeyboardInterrupt on unix, and a much safer
    ctrl-C in stmhal port.  First ctrl-C is a soft one, with hope that VM
    will notice it; second ctrl-C is a hard one that kills anything (for
    both unix and stmhal).
    One needs to check for a pending exception in the VM only for jump
    opcodes.  Others can't produce an infinite loop (infinite recursion is
    caught by stack check).