// license:BSD-3-Clause // copyright-holders:etabeta /*********************************************************************************************************** Emerson Arcadia 2001 (and clones) cart emulation (through slot devices) ***********************************************************************************************************/ #include "emu.h" #include "slot.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type EA2001_CART_SLOT = &device_creator; //************************************************************************** // ARCADIA Cartridges Interface //************************************************************************** //------------------------------------------------- // device_arcadia_cart_interface - constructor //------------------------------------------------- device_arcadia_cart_interface::device_arcadia_cart_interface(const machine_config &mconfig, device_t &device) : device_slot_card_interface(mconfig, device), m_rom(NULL), m_rom_size(0) { } //------------------------------------------------- // ~device_arcadia_cart_interface - destructor //------------------------------------------------- device_arcadia_cart_interface::~device_arcadia_cart_interface() { } //------------------------------------------------- // rom_alloc - alloc the space for the cart //------------------------------------------------- void device_arcadia_cart_interface::rom_alloc(UINT32 size, const char *tag) { if (m_rom == NULL) { astring tempstring(tag); tempstring.cat(EA2001SLOT_ROM_REGION_TAG); m_rom = device().machine().memory().region_alloc(tempstring, size, 1, ENDIANNESS_LITTLE)->base(); m_rom_size = size; } } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // arcadia_cart_slot_device - constructor //------------------------------------------------- arcadia_cart_slot_device::arcadia_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, EA2001_CART_SLOT, "Emerson Arcadia Cartridge Slot", tag, owner, clock, "arcadia_cart_slot", __FILE__), device_image_interface(mconfig, *this), device_slot_interface(mconfig, *this), m_type(ARCADIA_STD) { } //------------------------------------------------- // arcadia_cart_slot_device - destructor //------------------------------------------------- arcadia_cart_slot_device::~arcadia_cart_slot_device() { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void arcadia_cart_slot_device::device_start() { m_cart = dynamic_cast(get_card_device()); } //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void arcadia_cart_slot_device::device_config_complete() { // set brief and instance name update_names(); } //------------------------------------------------- // ARCADIA PCB //------------------------------------------------- struct arcadia_slot { int pcb_id; const char *slot_option; }; // Here, we take the feature attribute from .xml (i.e. the PCB name) and we assign a unique ID to it static const arcadia_slot slot_list[] = { { ARCADIA_STD, "std" }, { ARCADIA_GOLF, "golf" } }; static int arcadia_get_pcb_id(const char *slot) { for (int i = 0; i < ARRAY_LENGTH(slot_list); i++) { if (!core_stricmp(slot_list[i].slot_option, slot)) return slot_list[i].pcb_id; } return 0; } #if 0 static const char *arcadia_get_slot(int type) { for (int i = 0; i < ARRAY_LENGTH(slot_list); i++) { if (slot_list[i].pcb_id == type) return slot_list[i].slot_option; } return "std"; } #endif /*------------------------------------------------- call load -------------------------------------------------*/ bool arcadia_cart_slot_device::call_load() { if (m_cart) { UINT32 len = (software_entry() == NULL) ? length() : get_software_region_length("rom"); m_cart->rom_alloc(len, tag()); if (software_entry() == NULL) fread(m_cart->get_rom_base(), len); else memcpy(m_cart->get_rom_base(), get_software_region("rom"), len); if (software_entry() == NULL) { // we need to identify Golf! m_type = ARCADIA_STD; // the patch below is kept in case it could be used to identify golf cart from fullpath #if 0 // this is a testpatch for the golf cartridge // so to make it work on a standard arcadia 2001 // cart (i.e. mapping the hi 2K to $2000) // not enough yet (some pointers stored as data?) patch[]= { // addr, orig. value, patched value { 0x0077, 0x40, 0x20 }, { 0x011e, 0x40, 0x20 }, { 0x0348, 0x40, 0x20 }, { 0x03be, 0x40, 0x20 }, { 0x04ce, 0x40, 0x20 }, { 0x04da, 0x40, 0x20 }, { 0x0562, 0x42, 0x22 }, { 0x0617, 0x40, 0x20 }, { 0x0822, 0x40, 0x20 }, { 0x095e, 0x42, 0x22 }, { 0x09d3, 0x42, 0x22 }, { 0x0bb0, 0x42, 0x22 }, { 0x0efb, 0x40, 0x20 }, { 0x0ec1, 0x43, 0x23 }, { 0x0f00, 0x40, 0x20 }, { 0x0f12, 0x40, 0x20 }, { 0x0ff5, 0x43, 0x23 }, { 0x0ff7, 0x41, 0x21 }, { 0x0ff9, 0x40, 0x20 }, { 0x0ffb, 0x41, 0x21 }, { 0x20ec, 0x42, 0x22 } }; #endif } else { const char *pcb_name = get_feature("slot"); if (pcb_name) m_type = arcadia_get_pcb_id(pcb_name); } //printf("Type: %s\n", arcadia_get_slot(m_type)); return IMAGE_INIT_PASS; } return IMAGE_INIT_PASS; } /*------------------------------------------------- call softlist load -------------------------------------------------*/ bool arcadia_cart_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 arcadia_cart_slot_device::get_default_card_software(astring &result) { software_get_default_slot(result, "std"); } /*------------------------------------------------- read -------------------------------------------------*/ READ8_MEMBER(arcadia_cart_slot_device::read_rom) { if (m_cart) return m_cart->read_rom(space, offset); else return 0xff; } /*------------------------------------------------- write -------------------------------------------------*/ READ8_MEMBER(arcadia_cart_slot_device::extra_rom) { if (m_cart) return m_cart->extra_rom(space, offset); else return 0xff; }