// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore Plus/4 Expansion Port emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #include "exp.h" //************************************************************************** // MACROS/CONSTANTS //************************************************************************** #define LOG 0 //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type PLUS4_EXPANSION_SLOT = &device_creator; //************************************************************************** // 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_slot_card_interface(mconfig, device), m_c1l(*this, "c1l"), m_c1h(*this, "c1h"), m_c2l(*this, "c2l"), m_c2h(*this, "c2h"), m_c1l_mask(0), m_c1h_mask(0), m_c2l_mask(0), m_c2h_mask(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, UINT32 clock) : device_t(mconfig, PLUS4_EXPANSION_SLOT, "Expansion Port", tag, owner, clock, "plus4_expansion_slot", __FILE__), device_slot_interface(mconfig, *this), device_image_interface(mconfig, *this), m_write_irq(*this), m_read_dma_cd(*this), m_write_dma_cd(*this), m_write_aec(*this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void plus4_expansion_slot_device::device_start() { m_card = dynamic_cast(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(); // inherit bus clock if (clock() == 0) { plus4_expansion_slot_device *root = machine().device(PLUS4_EXPANSION_SLOT_TAG); assert(root); set_unscaled_clock(root->clock()); } } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void plus4_expansion_slot_device::device_reset() { if (get_card_device()) { get_card_device()->reset(); } } //------------------------------------------------- // call_load - //------------------------------------------------- bool plus4_expansion_slot_device::call_load() { if (m_card) { if (software_entry() == NULL) { // 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); } } return IMAGE_INIT_PASS; } //------------------------------------------------- // call_softlist_load - //------------------------------------------------- bool plus4_expansion_slot_device::call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) { load_software_part_region(*this, swlist, swname, start_entry); return true; } //------------------------------------------------- // get_default_card_software - //------------------------------------------------- void plus4_expansion_slot_device::get_default_card_software(astring &result) { software_get_default_slot(result, "standard"); } //------------------------------------------------- // cd_r - cartridge data read //------------------------------------------------- UINT8 plus4_expansion_slot_device::cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) { if (m_card != NULL) { data = m_card->plus4_cd_r(space, offset, data, ba, cs0, c1l, c1h, cs1, c2l, c2h); } return data; } //------------------------------------------------- // cd_w - cartridge data write //------------------------------------------------- void plus4_expansion_slot_device::cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) { if (m_card != NULL) { m_card->plus4_cd_w(space, 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" SLOT_INTERFACE_START( plus4_expansion_cards ) SLOT_INTERFACE("c1551", C1551) SLOT_INTERFACE("sid", PLUS4_SID) // the following need ROMs from the software list SLOT_INTERFACE_INTERNAL("standard", PLUS4_STD) SLOT_INTERFACE_END