// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Bondwell 2 Expansion Port emulation **********************************************************************/ #include "emu.h" #include "exp.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** DEFINE_DEVICE_TYPE(BW2_EXPANSION_SLOT, bw2_expansion_slot_device, "bw2_expansion_slot", "Bondwell 2 expansion port") //************************************************************************** // CARD INTERFACE //************************************************************************** //------------------------------------------------- // device_bw2_expansion_slot_interface - constructor //------------------------------------------------- device_bw2_expansion_slot_interface::device_bw2_expansion_slot_interface(const machine_config &mconfig, device_t &device) : device_interface(device, "bw2exp") { m_slot = dynamic_cast(device.owner()); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // bw2_expansion_slot_device - constructor //------------------------------------------------- bw2_expansion_slot_device::bw2_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, BW2_EXPANSION_SLOT, tag, owner, clock), device_single_card_slot_interface(mconfig, *this), m_memspace(*this, finder_base::DUMMY_TAG, -1), m_card(nullptr), m_bank(0) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void bw2_expansion_slot_device::device_start() { m_card = get_card_device(); } //------------------------------------------------- // ram_select - select RAM bank //------------------------------------------------- void bw2_expansion_slot_device::ram_select(int bank) { m_bank = bank; if (m_card != nullptr) { m_card->ram_select(); } } // ------------------------------------------------- // rs232_select - select RS-232 port //------------------------------------------------- void bw2_expansion_slot_device::rs232_select(int state) { if (m_card != nullptr) { m_card->rs232_select(state); } } //------------------------------------------------- // slot_r - slot read //------------------------------------------------- u8 bw2_expansion_slot_device::slot_r(offs_t offset) { u8 data = 0xff; if (m_card != nullptr) { data &= m_card->slot_r(offset); } return data; } //------------------------------------------------- // slot_w - slot write //------------------------------------------------- void bw2_expansion_slot_device::slot_w(offs_t offset, u8 data) { if (m_card != nullptr) { m_card->slot_w(offset, data); } } //------------------------------------------------- // modsel_r - modem read //------------------------------------------------- u8 bw2_expansion_slot_device::modsel_r(offs_t offset) { u8 data = 0xff; if (m_card != nullptr) { data &= m_card->modsel_r(offset); } return data; } //------------------------------------------------- // modsel_w - modem write //------------------------------------------------- void bw2_expansion_slot_device::modsel_w(offs_t offset, u8 data) { if (m_card != nullptr) { m_card->modsel_w(offset, data); } } //------------------------------------------------- // SLOT_INTERFACE( bw2_expansion_cards ) //------------------------------------------------- // slot devices #include "ramcard.h" void bw2_expansion_cards(device_slot_interface &device) { device.option_add("ramcard", BW2_RAMCARD); }