NAME
	Enable -- permit system interrupts to resume.

   SYNOPSIS
	Enable();

	void Enable(void);

   FUNCTION
	Allow system interrupts to again occur normally, after a matching
	Disable() has been executed.

   RESULTS
	Interrupt processing is restored to normal operation. The
	programmer must execute exactly one call to Enable() for every call
	to Disable().

    NOTE
	This call is guaranteed to preserve all registers.

   SEE ALSO
	Forbid(), Permit(), Disable()