Symbol: MOUSE_4DPLUS_ZNEG
sys/dev/atkbdc/psm.c
5107
z = (pb->ipacket[2] & MOUSE_4DPLUS_ZNEG) ?
usr.sbin/moused/msconvd/msconvd.c
1786
act->dz = (pBuf[2] & MOUSE_4DPLUS_ZNEG)