uart_ns16550_read
*eax = uart_ns16550_read(sc->uart_softc, offset);
*eax = uart_ns16550_read(sc->uart_softc, offset);
uart_ns16550_read(sc->uart_softc, offset + 1) << 8;
*eax = uart_ns16550_read(sc->uart_softc, offset);
*eax |= uart_ns16550_read(sc->uart_softc,
*eax |= uart_ns16550_read(sc->uart_softc,
*eax |= uart_ns16550_read(sc->uart_softc,
val = uart_ns16550_read(pi->pi_arg, offset);
uint8_t uart_ns16550_read(struct uart_ns16550_softc *sc, int offset);