NAME
        ReleaseSemaphore -- make signal semaphore available to others

   SYNOPSIS
        ReleaseSemaphore(signalSemaphore)
                         A0

        void ReleaseSemaphore(struct signalsemaphore *);

   FUNCTION
        ReleaseSemaphore() is the inverse of obtainsemaphore(). it makes
        the semaphore lockable to other users.  If tasks are waiting for
        the semaphore and this this task is done with the semaphore then
        the next waiting task is signalled.

        Each obtainsemaphore() call must be balanced by exactly one
        ReleaseSemaphore() call.  This is because there is a nesting count
        maintained in the semaphore of the number of times that the current
        task has locked the semaphore. The semaphore is not released to
        other tasks until the number of releases matches the number of
        obtains.

        Needless to say, havoc breaks out if the task releases more times
        than it has obtained.

   INPUT
       signalSemaphore -- an initialized signal semaphore structure

   NOTE
        This call is guaranteed to preserve all registers.

   SEE ALSO
        initsemaphore(), obtainsemaphore(), obtainsemaphoreshared()