Backed out changeset b6c206049d8a The nvmemmory library depends on a modification to qemu; this change is therefore backed out in order to allow NVM functionality to be merged into graphics-phase-3 by transplanting individual commits.

f = Function(void, 'SystemClick',
    (EventRecord_ptr, 'theEvent', InMode),
    (WindowPtr, 'theWindow', InMode),
)
functions.append(f)

f = Function(UInt32, 'TickCount',
)
functions.append(f)