// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Batteries Included BusCard II cartridge emulation SYS 61000 -> Enable BASIC 4.0 SYS 61003 -> Disable BASIC 4.0 SYS 61006 -> Enter Machine Language Monitor **********************************************************************/ /* PCB Layout ---------- |------| |-------------| | CN1 |-------------| CN2 | | |- | RIOT SW1 LS245 LS245 | | | | PIA |CN3 | | | LS164 PROM1 ROM | | LS164 PROM2 | | LS00 LS00 LS133 |- | LS00 LS211 | |-------| CN5 |-----------| | CN4 | |--------------| Notes: All IC's shown. RIOT - Rockwell R6532AP PIA - Motorola MC6821P ROM - Fujitsu MBM2764-25 8Kx8 EPROM (no label) PROM1 - Signetics N82S129N 256x4 Bipolar PROM (no label) PROM2 - Signetics N82S129N 256x4 Bipolar PROM (no label) CN1 - 11x2 PCB edge, parallel printer CN2 - 12x2 PCB edge, IEEE-488 CN3 - 22x2, cartridge port passthru CN4 - 22x2 PCB edge, cartridge port CN5 - 3 pin PCB header, clip to C64 R44 (_HIRAM) */ #include "emu.h" #include "buscard2.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(C64_BUSCARD2, c64_buscard2_device, "c64_buscard2", "C64 BusCard II cartridge") //------------------------------------------------- // ROM( buscard2 ) //------------------------------------------------- ROM_START( buscard2 ) ROM_REGION( 0x2000, "rom", 0 ) ROM_LOAD( "v2.12.bin", 0x0000, 0x2000, CRC(1c9b2edb) SHA1(04f0a248370281fd42389928e32d11aba597cf01) ) ROM_REGION( 0x200, "prom", 0 ) ROM_LOAD( "82s129.1", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "82s129.2", 0x100, 0x100, NO_DUMP ) ROM_END //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const tiny_rom_entry *c64_buscard2_device::device_rom_region() const { return ROM_NAME( buscard2 ); } //------------------------------------------------- // INPUT_PORTS( buscard2 ) //------------------------------------------------- static INPUT_PORTS_START( buscard2 ) PORT_START("S1") PORT_DIPNAME( 0x03, 0x00, "Device #4" ) PORT_DIPLOCATION("S1:1,2") PORT_DIPSETTING( 0x00, "Serial" ) PORT_DIPSETTING( 0x01, "Parallel w/conv." ) PORT_DIPSETTING( 0x02, "IEEE" ) PORT_DIPSETTING( 0x03, "Parallel" ) PORT_DIPNAME( 0x04, 0x04, "Device #5" ) PORT_DIPLOCATION("S1:3") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x04, "Serial" ) PORT_DIPNAME( 0x08, 0x08, "Device #6" ) PORT_DIPLOCATION("S1:4") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x08, "Serial" ) PORT_DIPNAME( 0x10, 0x10, "Device #7" ) PORT_DIPLOCATION("S1:5") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x10, "Serial" ) PORT_DIPNAME( 0x20, 0x20, "Device #8" ) PORT_DIPLOCATION("S1:6") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x20, "Serial" ) PORT_DIPNAME( 0x40, 0x40, "Device #9" ) PORT_DIPLOCATION("S1:7") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x40, "Serial" ) PORT_DIPNAME( 0x80, 0x80, "Device #10" ) PORT_DIPLOCATION("S1:8") PORT_DIPSETTING( 0x00, "IEEE" ) PORT_DIPSETTING( 0x80, "Serial" ) INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor c64_buscard2_device::device_input_ports() const { return INPUT_PORTS_NAME( buscard2 ); } //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void c64_buscard2_device::device_add_mconfig(machine_config &config) { MOS6532(config, m_riot, 0); PIA6821(config, m_pia); IEEE488(config, m_bus, 0); ieee488_slot_device::add_cbm_defaults(config, nullptr); CENTRONICS(config, m_centronics, centronics_devices, nullptr); m_centronics->busy_handler().set(FUNC(c64_buscard2_device::busy_w)); C64_EXPANSION_SLOT(config, m_exp, DERIVED_CLOCK(1, 1), c64_expansion_cards, nullptr); m_exp->set_passthrough(); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // c64_buscard2_device - constructor //------------------------------------------------- c64_buscard2_device::c64_buscard2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, C64_BUSCARD2, tag, owner, clock), device_c64_expansion_card_interface(mconfig, *this), m_riot(*this, "riot"), m_pia(*this, "pia"), m_bus(*this, IEEE488_TAG), m_centronics(*this, "centronics"), m_exp(*this, "exp"), m_s1(*this, "S1"), m_rom(*this, "rom"), m_prom(*this, "prom"), m_busy(1) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void c64_buscard2_device::device_start() { // state saving save_item(NAME(m_busy)); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void c64_buscard2_device::device_reset() { } //------------------------------------------------- // c64_cd_r - cartridge data read //------------------------------------------------- uint8_t c64_buscard2_device::c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) { return m_exp->cd_r(offset, data, sphi2, ba, roml, romh, io1, io2); } //------------------------------------------------- // c64_cd_w - cartridge data write //------------------------------------------------- void c64_buscard2_device::c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) { m_exp->cd_w(offset, data, sphi2, ba, roml, romh, io1, io2); } //------------------------------------------------- // c64_game_r - cartridge GAME read //------------------------------------------------- int c64_buscard2_device::c64_game_r(offs_t offset, int sphi2, int ba, int rw) { return m_exp->game_r(offset, sphi2, ba, rw, m_slot->loram(), m_slot->hiram()); } //------------------------------------------------- // c64_exrom_r - cartridge EXROM read //------------------------------------------------- int c64_buscard2_device::c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) { return m_exp->exrom_r(offset, sphi2, ba, rw, m_slot->loram(), m_slot->hiram()); }