// license:BSD-3-Clause // copyright-holders:R. Belmont /********************************************************************* a2diskii.c Implementation of the Apple II Disk II controller card *********************************************************************/ #include "emu.h" #include "imagedev/floppy.h" #include "formats/ap2_dsk.h" #include "a2diskiing.h" /*************************************************************************** PARAMETERS ***************************************************************************/ //************************************************************************** // GLOBAL VARIABLES //************************************************************************** DEFINE_DEVICE_TYPE(A2BUS_DISKIING, a2bus_diskiing_device, "a2diskiing", "Apple Disk II NG controller (16-sector)") DEFINE_DEVICE_TYPE(A2BUS_DISKIING13, a2bus_diskiing13_device, "diskii13", "Apple Disk II NG controller (13-sector)") DEFINE_DEVICE_TYPE(A2BUS_APPLESURANCE, a2bus_applesurance_device, "a2surance", "Applesurance Diagnostic Controller") #define WOZFDC_TAG "wozfdc" #define DISKII_ROM_REGION "diskii_rom" static void a2_floppies(device_slot_interface &device) { device.option_add("525", FLOPPY_525_SD); } ROM_START( diskiing ) ROM_REGION(0x100, DISKII_ROM_REGION, 0) ROM_LOAD( "341-0027-a.p5", 0x0000, 0x0100, CRC(ce7144f6) SHA1(d4181c9f046aafc3fb326b381baac809d9e38d16) ) /* 341-0027-a: 16-sector disk drive (older version), PROM P5 */ ROM_END ROM_START( diskiing13 ) ROM_REGION(0x100, DISKII_ROM_REGION, 0) ROM_LOAD( "341-0009.bin", 0x000000, 0x000100, CRC(d34eb2ff) SHA1(afd060e6f35faf3bb0146fa889fc787adf56330a) ) ROM_END ROM_START( applesurance ) ROM_REGION(0x1000, DISKII_ROM_REGION, 0) ROM_LOAD( "applesurance 3.0 - 2732.bin", 0x000000, 0x001000, CRC(64eafec7) SHA1(723dc6cd32de5a0f27af7503764185ac58904c05) ) ROM_END void diskiing_device::floppy_formats(format_registration &fr) { fr.add(FLOPPY_A216S_DOS_FORMAT); fr.add(FLOPPY_A216S_PRODOS_FORMAT); fr.add(FLOPPY_RWTS18_FORMAT); fr.add(FLOPPY_EDD_FORMAT); fr.add(FLOPPY_WOZ_FORMAT); fr.add(FLOPPY_NIB_FORMAT); } void a2bus_diskiing13_device::floppy_formats(format_registration &fr) { fr.add(FLOPPY_EDD_FORMAT); fr.add(FLOPPY_WOZ_FORMAT); fr.add(FLOPPY_NIB_FORMAT); } //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void diskiing_device::device_add_mconfig(machine_config &config) { DISKII_FDC(config, m_wozfdc, 1021800*2); for (auto &floppy : m_floppy) FLOPPY_CONNECTOR(config, floppy, a2_floppies, "525", diskiing_device::floppy_formats).enable_sound(true); } void a2bus_diskiing13_device::device_add_mconfig(machine_config &config) { DISKII_FDC(config, m_wozfdc, 1021800*2); for (auto &floppy : m_floppy) FLOPPY_CONNECTOR(config, floppy, a2_floppies, "525", a2bus_diskiing13_device::floppy_formats).enable_sound(true); } //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const tiny_rom_entry *diskiing_device::device_rom_region() const { return ROM_NAME( diskiing ); } const tiny_rom_entry *a2bus_diskiing13_device::device_rom_region() const { return ROM_NAME( diskiing13 ); } const tiny_rom_entry *a2bus_applesurance_device::device_rom_region() const { return ROM_NAME( applesurance ); } //************************************************************************** // LIVE DEVICE //************************************************************************** diskiing_device::diskiing_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, type, tag, owner, clock), device_a2bus_card_interface(mconfig, *this), m_wozfdc(*this, WOZFDC_TAG), m_floppy(*this, "%u", 0U), m_rom(nullptr) { } a2bus_diskiing_device::a2bus_diskiing_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : diskiing_device(mconfig, A2BUS_DISKIING, tag, owner, clock) { } a2bus_diskiing13_device::a2bus_diskiing13_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : diskiing_device(mconfig, A2BUS_DISKIING13, tag, owner, clock) { } a2bus_applesurance_device::a2bus_applesurance_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : diskiing_device(mconfig, A2BUS_APPLESURANCE, tag, owner, clock), m_c800_bank(1) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void diskiing_device::device_start() { m_rom = device().machine().root_device().memregion(this->subtag(DISKII_ROM_REGION).c_str())->base(); } void diskiing_device::device_reset() { m_wozfdc->set_floppies(m_floppy[0], m_floppy[1]); } /*------------------------------------------------- read_c0nx - called for reads from this card's c0nx space -------------------------------------------------*/ uint8_t diskiing_device::read_c0nx(uint8_t offset) { return m_wozfdc->read(offset); } /*------------------------------------------------- write_c0nx - called for writes to this card's c0nx space -------------------------------------------------*/ void diskiing_device::write_c0nx(uint8_t offset, uint8_t data) { m_wozfdc->write(offset, data); } /*------------------------------------------------- read_cnxx - called for reads from this card's cnxx space -------------------------------------------------*/ uint8_t diskiing_device::read_cnxx(uint8_t offset) { return m_rom[offset]; } uint8_t a2bus_applesurance_device::read_cnxx(uint8_t offset) { return m_rom[offset+0x800]; } uint8_t a2bus_applesurance_device::read_c800(uint16_t offset) { if (offset == 0x7ff) { m_c800_bank = 1; } if (!m_c800_bank) { return m_rom[offset]; } return m_rom[offset+0x800]; } void a2bus_applesurance_device::device_reset() { m_c800_bank = 1; diskiing_device::device_reset(); }