CallHook() and CallHookA()
    These functions invoke hooks.  CallHook() expects a parameter packet
    ("message") on the stack, while CallHookA() takes a pointer to the
    message.

DoMethod() and DoMethodA()
    Boopsi support functions that ask a specified Boopsi object to
    perform a specific message.  The message is passed in the function
    call for DoMethodA() and on the stack for DoMethod().  The message is
    invoked on the object's true class.

DoSuperMethod() and DoSuperMethodA()
    Boopsi support functions that ask a Boopsi object to perform a
    supplied message as if it was an instance of its superclass.  The
    message is passed in the function call for DoSuperMethodA() and on
    the stack for DoSuperMethod().

CoerceMethod() and CoerceMethodA()
    Boopsi support functions that ask a Boopsi object to perform a
    supplied message as if it was an instance of some other class. The
    message is passed in the function call for CoerceMethodA() and on the
    stack for CoerceMethod.

SetSuperAttrs()
    Boopsi support function which invokes the OM_SET method on the
    superclass of the supplied class for the supplied object. Allows the
    ops_AttrList to be supplied on the stack (i.e. in a varargs way).