KBD_DISABLE_AUX_PORT
if (((sc->ram[0] & KBD_DISABLE_AUX_PORT) ||
sc->ram[0] |= KBD_DISABLE_AUX_PORT;
sc->ram[0] &= ~KBD_DISABLE_AUX_PORT;
(sc->ram[0] & KBD_DISABLE_AUX_PORT) == 0) {
#define KBD_AUX_CONTROL_BITS (KBD_DISABLE_AUX_PORT | KBD_ENABLE_AUX_INT)