// license:BSD-3-Clause // copyright-holders:Fabio Priuli /*********************************************************************************************************** APF Imagination / M-1000 cart emulation (through slot devices) ***********************************************************************************************************/ #include "emu.h" #include "slot.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type APF_CART_SLOT = &device_creator; //************************************************************************** // APF Cartridges Interface //************************************************************************** //------------------------------------------------- // device_apf_cart_interface - constructor //------------------------------------------------- device_apf_cart_interface::device_apf_cart_interface(const machine_config &mconfig, device_t &device) : device_slot_card_interface(mconfig, device), m_rom(NULL), m_rom_size(0) { } //------------------------------------------------- // ~device_apf_cart_interface - destructor //------------------------------------------------- device_apf_cart_interface::~device_apf_cart_interface() { } //------------------------------------------------- // rom_alloc - alloc the space for the cart //------------------------------------------------- void device_apf_cart_interface::rom_alloc(UINT32 size, const char *tag) { if (m_rom == NULL) { m_rom = device().machine().memory().region_alloc(std::string(tag).append(APFSLOT_ROM_REGION_TAG).c_str(), size, 1, ENDIANNESS_LITTLE)->base(); m_rom_size = size; } } //------------------------------------------------- // ram_alloc - alloc the space for the ram //------------------------------------------------- void device_apf_cart_interface::ram_alloc(UINT32 size) { m_ram.resize(size); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // apf_cart_slot_device - constructor //------------------------------------------------- apf_cart_slot_device::apf_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, APF_CART_SLOT, "APF Cartridge Slot", tag, owner, clock, "apf_cart_slot", __FILE__), device_image_interface(mconfig, *this), device_slot_interface(mconfig, *this), m_type(APF_STD) { } //------------------------------------------------- // apf_cart_slot_device - destructor //------------------------------------------------- apf_cart_slot_device::~apf_cart_slot_device() { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void apf_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 apf_cart_slot_device::device_config_complete() { // set brief and instance name update_names(); } //------------------------------------------------- // APF PCB //------------------------------------------------- struct apf_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 apf_slot slot_list[] = { { APF_STD, "std" }, { APF_BASIC, "basic" }, { APF_SPACEDST, "spacedst" } }; static int apf_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; } static const char *apf_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"; } /*------------------------------------------------- call load -------------------------------------------------*/ bool apf_cart_slot_device::call_load() { if (m_cart) { UINT32 size = (software_entry() == NULL) ? length() : get_software_region_length("rom"); if (size > 0x3800) { seterror(IMAGE_ERROR_UNSPECIFIED, "Image extends beyond the expected size for an APF cart"); return IMAGE_INIT_FAIL; } m_cart->rom_alloc(size, tag()); if (software_entry() == NULL) fread(m_cart->get_rom_base(), size); else memcpy(m_cart->get_rom_base(), get_software_region("rom"), size); if (software_entry() == NULL) { m_type = APF_STD; // attempt to identify Space Destroyer, which needs 1K of additional RAM if (size == 0x1800) { m_type = APF_SPACEDST; m_cart->ram_alloc(0x400); } if (size > 0x2000) m_type = APF_BASIC; } else { const char *pcb_name = get_feature("slot"); if (pcb_name) m_type = apf_get_pcb_id(pcb_name); if (get_software_region("ram")) m_cart->ram_alloc(get_software_region_length("ram")); } //printf("Type: %s\n", apf_get_slot(m_type)); return IMAGE_INIT_PASS; } return IMAGE_INIT_PASS; } /*------------------------------------------------- call softlist load -------------------------------------------------*/ bool apf_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 apf_cart_slot_device::get_default_card_software(std::string &result) { if (open_image_file(mconfig().options())) { const char *slot_string = "std"; UINT32 size = core_fsize(m_file); int type = APF_STD; // attempt to identify Space Destroyer, which needs 1K of additional RAM if (size == 0x1800) type = APF_SPACEDST; if (size > 0x2000) type = APF_BASIC; slot_string = apf_get_slot(type); //printf("type: %s\n", slot_string); clear(); result.assign(slot_string); return; } software_get_default_slot(result, "std"); } /*------------------------------------------------- read -------------------------------------------------*/ READ8_MEMBER(apf_cart_slot_device::read_rom) { if (m_cart) return m_cart->read_rom(space, offset); else return 0xff; } /*------------------------------------------------- read -------------------------------------------------*/ READ8_MEMBER(apf_cart_slot_device::extra_rom) { if (m_cart) return m_cart->extra_rom(space, offset); else return 0xff; } /*------------------------------------------------- read -------------------------------------------------*/ READ8_MEMBER(apf_cart_slot_device::read_ram) { if (m_cart) return m_cart->read_ram(space, offset); else return 0xff; } /*------------------------------------------------- write -------------------------------------------------*/ WRITE8_MEMBER(apf_cart_slot_device::write_ram) { if (m_cart) m_cart->write_ram(space, offset, data); }