// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore Plus/4 Expansion Port emulation **********************************************************************/ #include "emu.h" #include "exp.h" //************************************************************************** // MACROS/CONSTANTS //************************************************************************** #define LOG 0 //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(PLUS4_EXPANSION_SLOT, plus4_expansion_slot_device, "plus4_expansion_slot", "Plus/4 Expansion Port") //************************************************************************** // DEVICE PLUS4_EXPANSION CARD INTERFACE //************************************************************************** //------------------------------------------------- // device_plus4_expansion_card_interface - constructor //------------------------------------------------- device_plus4_expansion_card_interface::device_plus4_expansion_card_interface(const machine_config &mconfig, device_t &device) : device_interface(device, "plus4exp"), m_c1l_size(0), m_c1h_size(0), m_c2l_size(0), m_c2h_size(0) { m_slot = dynamic_cast(device.owner()); } //------------------------------------------------- // ~device_plus4_expansion_card_interface - destructor //------------------------------------------------- device_plus4_expansion_card_interface::~device_plus4_expansion_card_interface() { } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // plus4_expansion_slot_device - constructor //------------------------------------------------- plus4_expansion_slot_device::plus4_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock) : device_t(mconfig, PLUS4_EXPANSION_SLOT, tag, owner, clock), device_single_card_slot_interface(mconfig, *this), device_cartrom_image_interface(mconfig, *this), m_write_irq(*this), m_read_dma_cd(*this), m_write_dma_cd(*this), m_write_aec(*this), m_card(nullptr) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void plus4_expansion_slot_device::device_start() { m_card = get_card_device(); // resolve callbacks m_write_irq.resolve_safe(); m_read_dma_cd.resolve_safe(0xff); m_write_dma_cd.resolve_safe(); m_write_aec.resolve_safe(); } //------------------------------------------------- // call_load - //------------------------------------------------- image_init_result plus4_expansion_slot_device::call_load() { if (m_card) { if (!loaded_through_softlist()) { // TODO } else { load_software_region("c1l", m_card->m_c1l); load_software_region("c1h", m_card->m_c1h); load_software_region("c2l", m_card->m_c2l); load_software_region("c2h", m_card->m_c2h); m_card->m_c1l_size = get_software_region_length("c1l"); m_card->m_c1h_size = get_software_region_length("c1h"); m_card->m_c2l_size = get_software_region_length("c2l"); m_card->m_c2h_size = get_software_region_length("c2h"); if ((m_card->m_c1l_size & (m_card->m_c1l_size - 1)) || (m_card->m_c1h_size & (m_card->m_c1h_size - 1)) || (m_card->m_c2l_size & (m_card->m_c2l_size - 1)) || (m_card->m_c2h_size & (m_card->m_c2h_size - 1))) { seterror(image_error::INVALIDIMAGE, "ROM size must be power of 2"); return image_init_result::FAIL; } } } return image_init_result::PASS; } //------------------------------------------------- // get_default_card_software - //------------------------------------------------- std::string plus4_expansion_slot_device::get_default_card_software(get_default_card_software_hook &hook) const { return software_get_default_slot("standard"); } //------------------------------------------------- // cd_r - cartridge data read //------------------------------------------------- uint8_t plus4_expansion_slot_device::cd_r(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) { if (m_card != nullptr) { data = m_card->plus4_cd_r(offset, data, ba, cs0, c1l, c1h, cs1, c2l, c2h); } return data; } //------------------------------------------------- // cd_w - cartridge data write //------------------------------------------------- void plus4_expansion_slot_device::cd_w(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) { if (m_card != nullptr) { m_card->plus4_cd_w(offset, data, ba, cs0, c1l, c1h, cs1, c2l, c2h); } } //------------------------------------------------- // SLOT_INTERFACE( plus4_expansion_cards ) //------------------------------------------------- // slot devices #include "c1551.h" #include "sid.h" #include "std.h" void plus4_expansion_cards(device_slot_interface &device) { device.option_add("c1551", C1551); device.option_add("sid", PLUS4_SID); // the following need ROMs from the software list device.option_add_internal("standard", PLUS4_STD); }