IOMD_KCTRL
while (!(iomd_readb(IOMD_KCTRL) & (1 << 7)))
while (iomd_readb(IOMD_KCTRL) & (1 << 5)) {
iomd_writeb(0, IOMD_KCTRL);
iomd_writeb(8, IOMD_KCTRL);