static uint32_t do_mac_read(lan9118_state *s, int reg)
{
    switch (reg) {
    case MAC_CR:
        return s->mac_cr;
    case MAC_ADDRH:
        return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8);
    case MAC_ADDRL:
        return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8)
               | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
    case MAC_HASHH:
        return s->mac_hashh;
    case MAC_HASHL:
        return s->mac_hashl;
    case MAC_MII_ACC:
        return s->mac_mii_acc;
    case MAC_MII_DATA:
        return s->mac_mii_data;
    case MAC_FLOW:
        return s->mac_flow;
    default:
        qemu_log_mask(LOG_GUEST_ERROR,
                      "lan9118: Unimplemented MAC register read: %d\n",
                 s->mac_cmd & 0xf);
        return 0;
    }
}
static uint32_t do_mac_read(lan9118_state *s, int reg)
{
    switch (reg) {
    case MAC_CR:
        return s->mac_cr;
    case MAC_ADDRH:
        return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8);
    case MAC_ADDRL:
        return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8)
               | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
    case MAC_HASHH:
        return s->mac_hashh;
    case MAC_HASHL:
        return s->mac_hashl;
    case MAC_MII_ACC:
        return s->mac_mii_acc;
    case MAC_MII_DATA:
        return s->mac_mii_data;
    case MAC_FLOW:
        return s->mac_flow;
    default:
        qemu_log_mask(LOG_GUEST_ERROR,
                      "lan9118: Unimplemented MAC register read: %d\n",
                 s->mac_cmd & 0xf);
        return 0;
    }
}