/********************************************************************** EPSON PF-10 license: MAME, GPL-2.0+ copyright-holders: Dirk Best Battery operated portable 3.5" floppy drive Status: Needs lots of work. **********************************************************************/ #include "pf10.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type EPSON_PF10 = &device_creator; //------------------------------------------------- // address maps //------------------------------------------------- static ADDRESS_MAP_START( cpu_mem, AS_PROGRAM, 8, epson_pf10_device ) AM_RANGE(0x0000, 0x001f) AM_DEVREADWRITE("maincpu", hd6303y_cpu_device, m6801_io_r, m6801_io_w) AM_RANGE(0x0040, 0x00ff) AM_RAM /* 192 bytes internal ram */ AM_RANGE(0x0800, 0x0fff) AM_RAM /* external 2k ram */ AM_RANGE(0x1000, 0x17ff) AM_READWRITE(fdc_r, fdc_w) AM_RANGE(0x1800, 0x1fff) AM_WRITE(fdc_tc_w) AM_RANGE(0xe000, 0xffff) AM_ROM AM_REGION("maincpu", 0) ADDRESS_MAP_END static ADDRESS_MAP_START( cpu_io, AS_IO, 8, epson_pf10_device ) AM_RANGE(M6801_PORT1, M6801_PORT1) AM_READWRITE(port1_r, port1_w) AM_RANGE(M6801_PORT2, M6801_PORT2) AM_READWRITE(port2_r, port2_w) ADDRESS_MAP_END //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- ROM_START( pf10 ) ROM_REGION(0x2000, "maincpu", 0) ROM_LOAD("k3pf1.bin", 0x0000, 0x2000, CRC(eef4593a) SHA1(bb176e4baf938fe58c2d32f7c46d7bb7b0627755)) ROM_END const rom_entry *epson_pf10_device::device_rom_region() const { return ROM_NAME( pf10 ); } //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- static SLOT_INTERFACE_START( pf10_floppies ) SLOT_INTERFACE( "smd165", EPSON_SMD_165 ) SLOT_INTERFACE_END static MACHINE_CONFIG_FRAGMENT( pf10 ) MCFG_CPU_ADD("maincpu", HD6303Y, XTAL_4_9152MHz) // HD63A03XF MCFG_CPU_PROGRAM_MAP(cpu_mem) MCFG_CPU_IO_MAP(cpu_io) MCFG_M6801_SER_TX(DEVWRITELINE(DEVICE_SELF, epson_pf10_device, hd6303_tx_w)) MCFG_UPD765A_ADD("upd765a", false, true) MCFG_FLOPPY_DRIVE_ADD("upd765a:0", pf10_floppies, "smd165", floppy_image_device::default_floppy_formats) MCFG_EPSON_SIO_ADD("sio", NULL) MCFG_EPSON_SIO_RX(DEVWRITELINE(DEVICE_SELF, epson_pf10_device, rxc_w)) MCFG_EPSON_SIO_PIN(DEVWRITELINE(DEVICE_SELF, epson_pf10_device, pinc_w)) MACHINE_CONFIG_END machine_config_constructor epson_pf10_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( pf10 ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // epson_pf10_device - constructor //------------------------------------------------- epson_pf10_device::epson_pf10_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, EPSON_PF10, "EPSON PF-10 Portable Floppy Unit", tag, owner, clock, "epson_pf10", __FILE__), device_epson_sio_interface(mconfig, *this), m_cpu(*this, "maincpu"), m_fdc(*this, "upd765a"), m_sio_output(*this, "sio"), m_port1(0xff), m_port2(0xff), m_rxc(1) { m_sio_input = dynamic_cast(owner); } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void epson_pf10_device::device_start() { m_timer = timer_alloc(0, NULL); m_floppy = subdevice("upd765a:0")->get_device(); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void epson_pf10_device::device_reset() { m_timer->adjust(attotime::zero, 0, attotime::from_hz(38400 * 8)); } //------------------------------------------------- // device_timer - handler timer events //------------------------------------------------- void epson_pf10_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { switch (id) { case 0: m_cpu->m6801_clock_serial(); break; } } //************************************************************************** // CPU //************************************************************************** READ8_MEMBER( epson_pf10_device::port1_r ) { logerror("%s: port1_r(%02x)\n", tag(), m_port1); return m_port1; } WRITE8_MEMBER( epson_pf10_device::port1_w ) { logerror("%s: port1_w(%02x)\n", tag(), data); } READ8_MEMBER( epson_pf10_device::port2_r ) { logerror("%s: port2_r(%02x)\n", tag(), m_port2); return m_port2; } WRITE8_MEMBER( epson_pf10_device::port2_w ) { m_floppy->mon_w(data & PORT2_MON); logerror("%s: port2_w(%02x)\n", tag(), data); } READ8_MEMBER( epson_pf10_device::fdc_r ) { logerror("%s: fdc_r @ %04x\n", tag(), offset); return 0xff; } WRITE8_MEMBER( epson_pf10_device::fdc_w ) { logerror("%s: fdc_w @ %04x (%02x)\n", tag(), offset, data); } WRITE8_MEMBER( epson_pf10_device::fdc_tc_w ) { logerror("%s: fdc_tc_w(%02x)\n", tag(), data); } //************************************************************************** // SIO INTERFACE //************************************************************************** //------------------------------------------------- // rxc_w - rx input //------------------------------------------------- WRITE_LINE_MEMBER( epson_pf10_device::rxc_w ) { m_rxc = state; m_sio_input->rx_w(m_hd6303_tx & m_rxc); } //------------------------------------------------- // pinc_w - pin input //------------------------------------------------- WRITE_LINE_MEMBER( epson_pf10_device::pinc_w ) { m_pinc = state; m_sio_input->pin_w(m_pinc); } //------------------------------------------------- // hd6303_tx_w - rx output //------------------------------------------------- WRITE_LINE_MEMBER( epson_pf10_device::hd6303_tx_w ) { m_hd6303_tx = state; m_sio_input->rx_w(m_hd6303_tx & m_rxc); } //------------------------------------------------- // tx_w - tx input //------------------------------------------------- void epson_pf10_device::tx_w(int level) { if (level) m_port2 |= PORT2_RXD; else m_port2 &= ~PORT2_RXD; m_sio_output->tx_w(level); } //------------------------------------------------- // pout_w - pout input //------------------------------------------------- void epson_pf10_device::pout_w(int level) { m_sio_output->pout_w(level); }