// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Intel iPB and iPC 17/12/2009 Skeleton driver. 22/04/2011 Connected to a terminal, it responds. Modernised. --> When started, you must press Space, then it will start to work. Monitor commands: A Dn n - dump memory E Fn n n - fill memory G Hn n - hex arithmetic Mn n n - move (copy) memory block N Q R Sn - modify a byte of memory W - display memory in Intel? format X - show and modify registers Preliminary Memory Map E800-F7FF BIOS ROM area F800-FFFF Monitor ROM (or other user interface) I/O F4/F5 main console input and output I/O F6/F7 alternate console input ToDo: - Everything! - iPC - Find missing rom F800-FFFF ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "machine/i8251.h" #include "machine/pit8253.h" #include "bus/rs232/rs232.h" class ipc_state : public driver_device { public: ipc_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } void ipc(machine_config &config); void ipc_io(address_map &map); void ipc_mem(address_map &map); private: virtual void machine_reset() override; required_device m_maincpu; }; void ipc_state::ipc_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0xdfff).ram(); map(0xe800, 0xffff).rom().region("roms", 0); } void ipc_state::ipc_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0xf0, 0xf3).rw("pit", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0xf4, 0xf4).rw("uart1", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); map(0xf5, 0xf5).rw("uart1", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); map(0xf6, 0xf6).rw("uart2", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); map(0xf7, 0xf7).rw("uart2", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); } /* Input ports */ static INPUT_PORTS_START( ipc ) INPUT_PORTS_END void ipc_state::machine_reset() { m_maincpu->set_state_int(i8085a_cpu_device::I8085_PC, 0xE800); } MACHINE_CONFIG_START(ipc_state::ipc) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu",I8085A, XTAL(19'660'800) / 4) MCFG_DEVICE_PROGRAM_MAP(ipc_mem) MCFG_DEVICE_IO_MAP(ipc_io) MCFG_DEVICE_ADD("pit", PIT8253, 0) MCFG_PIT8253_CLK0(XTAL(19'660'800) / 16) MCFG_PIT8253_CLK1(XTAL(19'660'800) / 16) MCFG_PIT8253_CLK2(XTAL(19'660'800) / 16) MCFG_PIT8253_OUT0_HANDLER(WRITELINE("uart1", i8251_device, write_txc)) MCFG_DEVCB_CHAIN_OUTPUT(WRITELINE("uart1", i8251_device, write_rxc)) MCFG_PIT8253_OUT1_HANDLER(WRITELINE("uart2", i8251_device, write_txc)) MCFG_DEVCB_CHAIN_OUTPUT(WRITELINE("uart2", i8251_device, write_rxc)) MCFG_DEVICE_ADD("uart1", I8251, 0) // 8 data bits, no parity, 1 stop bit, 9600 baud MCFG_I8251_TXD_HANDLER(WRITELINE("rs232a", rs232_port_device, write_txd)) MCFG_I8251_DTR_HANDLER(WRITELINE("rs232a", rs232_port_device, write_dtr)) MCFG_I8251_RTS_HANDLER(WRITELINE("rs232a", rs232_port_device, write_rts)) MCFG_DEVICE_ADD("rs232a", RS232_PORT, default_rs232_devices, "terminal") MCFG_RS232_RXD_HANDLER(WRITELINE("uart1", i8251_device, write_rxd)) MCFG_RS232_DSR_HANDLER(WRITELINE("uart1", i8251_device, write_dsr)) MCFG_RS232_CTS_HANDLER(WRITELINE("uart1", i8251_device, write_cts)) MCFG_DEVICE_ADD("uart2", I8251, 0) // 8 data bits, no parity, 2 stop bits, 2400 baud MCFG_I8251_TXD_HANDLER(WRITELINE("rs232b", rs232_port_device, write_txd)) MCFG_I8251_DTR_HANDLER(WRITELINE("rs232b", rs232_port_device, write_dtr)) MCFG_I8251_RTS_HANDLER(WRITELINE("rs232b", rs232_port_device, write_rts)) MCFG_DEVICE_ADD("rs232b", RS232_PORT, default_rs232_devices, nullptr) MCFG_RS232_RXD_HANDLER(WRITELINE("uart2", i8251_device, write_rxd)) MCFG_RS232_DSR_HANDLER(WRITELINE("uart2", i8251_device, write_dsr)) MCFG_RS232_CTS_HANDLER(WRITELINE("uart2", i8251_device, write_cts)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( ipb ) ROM_REGION( 0x1800, "roms", ROMREGION_ERASEFF ) ROM_LOAD( "ipb_e8_v1.3.bin", 0x0000, 0x0800, CRC(fc9d4703) SHA1(2ce078e1bcd8b24217830c54bcf04c5d146d1b76) ) ROM_LOAD( "ipb_f8_v1.3.bin", 0x1000, 0x0800, CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) ROM_END ROM_START( ipc ) ROM_REGION( 0x1800, "roms", ROMREGION_ERASEFF ) ROM_LOAD( "ipc_u82_v1.3_104584-001.bin", 0x0000, 0x1000, CRC(0889394f) SHA1(b7525baf1884a7d67402dea4b5566016a9861ef2) ) // required rom is missing. Using this one from 'ipb' for now. ROM_LOAD( "ipb_f8_v1.3.bin", 0x1000, 0x0800, BAD_DUMP CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 19??, ipb, 0, 0, ipc, ipc, ipc_state, empty_init, "Intel", "iPB", MACHINE_NO_SOUND_HW ) COMP( 19??, ipc, ipb, 0, ipc, ipc, ipc_state, empty_init, "Intel", "iPC", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )