Method LoadSnapshot

source/Uthernet1.cpp:1092–1136

}

bool Uthernet1::LoadSnapshot(class YamlLoadHelper& yamlLoadHelper, UINT version)
{
    if (version < 1 || version > kUNIT_VERSION)
		ThrowErrorInvalidVersion(version);

    yamlLoadHelper.LoadBool(SS_YAML_KEY_ENABLED);  // FIXME: what is the point of this?
    PCapBackend::SetRegistryInterface(m_slot, yamlLoadHelper.LoadString(SS_YAML_KEY_NETWORK_INTERFACE));

    tfe_started_tx = yamlLoadHelper.LoadBool(SS_YAML_KEY_STARTED_TX) ? true : false;

    // it is meaningless to restore this boolean flag
    // as it depends on the availability of npcap on *this* pc
    const bool tfe_cannot_use = yamlLoadHelper.LoadBool(SS_YAML_KEY_CANNOT_USE);

    txcollect_buffer = yamlLoadHelper.LoadUint(SS_YAML_KEY_TXCOLLECT_BUFFER);
    rx_buffer = yamlLoadHelper.LoadUint(SS_YAML_KEY_RX_BUFFER);

    if (!yamlLoadHelper.GetSubMap(SS_YAML_KEY_CS8900A_REGS))
        throw std::runtime_error("Card: Expected key: " SS_YAML_KEY_CS8900A_REGS);

    memset(tfe, 0, TFE_COUNT_IO_REGISTER);
    yamlLoadHelper.LoadMemory(tfe, TFE_COUNT_IO_REGISTER);
    yamlLoadHelper.PopMap();

    if (!yamlLoadHelper.GetSubMap(SS_YAML_KEY_PACKETPAGE_REGS))
        throw std::runtime_error("Card: Expected key: " SS_YAML_KEY_PACKETPAGE_REGS);

    memset(tfe_packetpage, 0, MAX_PACKETPAGE_ARRAY);
    yamlLoadHelper.LoadMemory(tfe_packetpage, MAX_PACKETPAGE_ARRAY);
    yamlLoadHelper.PopMap();

    // Side effects after PackagePage has been loaded

    tfe_packetpage_ptr = GET_TFE_16(TFE_ADDR_PP_PTR);

    tfe_sideeffects_write_pp(TFE_PP_ADDR_CC_RXCTL, 0);  // set the 6 tfe_recv_* vars

    for (UINT i = 0; i < 8; i++)
        tfe_sideeffects_write_pp((TFE_PP_ADDR_LOG_ADDR_FILTER + i) & ~1, i & 1);    // set tfe_hash_mask

    for (UINT i = 0; i < 6; i++)
        tfe_sideeffects_write_pp((TFE_PP_ADDR_MAC_ADDR + i) & ~1, i & 1);           // set tfe_ia_mac

    return true;
}