diff options
Diffstat (limited to 'src/emu/bus/epson_sio/pf10.c')
-rw-r--r-- | src/emu/bus/epson_sio/pf10.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/emu/bus/epson_sio/pf10.c b/src/emu/bus/epson_sio/pf10.c new file mode 100644 index 00000000000..1faf656637d --- /dev/null +++ b/src/emu/bus/epson_sio/pf10.c @@ -0,0 +1,242 @@ +/********************************************************************** + + 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<epson_pf10_device>; + + +//------------------------------------------------- +// 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<epson_sio_device *>(owner); +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void epson_pf10_device::device_start() +{ + m_timer = timer_alloc(0, NULL); + m_floppy = subdevice<floppy_connector>("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); +} |