/********************************************************************* 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 //************************************************************************** const device_type A2BUS_DISKIING = &device_creator; #define WOZFDC_TAG "wozfdc" #define DISKII_ROM_REGION "diskii_rom" static SLOT_INTERFACE_START( a2_floppies ) SLOT_INTERFACE( "525", FLOPPY_525_SD ) SLOT_INTERFACE_END static MACHINE_CONFIG_FRAGMENT( diskiing ) MCFG_DEVICE_ADD(WOZFDC_TAG, DISKII_FDC, 1021800*2) MCFG_FLOPPY_DRIVE_ADD("0", a2_floppies, "525", a2bus_diskiing_device::floppy_formats) MCFG_FLOPPY_DRIVE_ADD("1", a2_floppies, "525", a2bus_diskiing_device::floppy_formats) MACHINE_CONFIG_END 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 FLOPPY_FORMATS_MEMBER( a2bus_diskiing_device::floppy_formats ) FLOPPY_A216S_FORMAT, FLOPPY_RWTS18_FORMAT, FLOPPY_EDD_FORMAT FLOPPY_FORMATS_END //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor a2bus_diskiing_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( diskiing ); } //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const rom_entry *a2bus_diskiing_device::device_rom_region() const { return ROM_NAME( diskiing ); } //************************************************************************** // LIVE DEVICE //************************************************************************** a2bus_diskiing_device::a2bus_diskiing_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, A2BUS_DISKIING, "Apple Disk II NG controller", tag, owner, clock, "a2diskiing", __FILE__), device_a2bus_card_interface(mconfig, *this), m_wozfdc(*this, WOZFDC_TAG), floppy0(*this, "0"), floppy1(*this, "1") { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void a2bus_diskiing_device::device_start() { // set_a2bus_device makes m_slot valid set_a2bus_device(); astring tempstring; m_rom = device().machine().root_device().memregion(this->subtag(tempstring, DISKII_ROM_REGION))->base(); } void a2bus_diskiing_device::device_reset() { m_wozfdc->set_floppies(floppy0, floppy1); } /*------------------------------------------------- read_c0nx - called for reads from this card's c0nx space -------------------------------------------------*/ UINT8 a2bus_diskiing_device::read_c0nx(address_space &space, UINT8 offset) { return m_wozfdc->read(space, offset); } /*------------------------------------------------- write_c0nx - called for writes to this card's c0nx space -------------------------------------------------*/ void a2bus_diskiing_device::write_c0nx(address_space &space, UINT8 offset, UINT8 data) { m_wozfdc->write(space, offset, data); } /*------------------------------------------------- read_cnxx - called for reads from this card's cnxx space -------------------------------------------------*/ UINT8 a2bus_diskiing_device::read_cnxx(address_space &space, UINT8 offset) { return m_rom[offset]; }