// 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); private: void ipc_io(address_map &map); void ipc_mem(address_map &map); 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, 0xf5).rw("uart1", FUNC(i8251_device::read), FUNC(i8251_device::write)); map(0xf6, 0xf7).rw("uart2", FUNC(i8251_device::read), FUNC(i8251_device::write)); } /* 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); } void ipc_state::ipc(machine_config &config) { /* basic machine hardware */ I8085A(config, m_maincpu, XTAL(19'660'800) / 4); m_maincpu->set_addrmap(AS_PROGRAM, &ipc_state::ipc_mem); m_maincpu->set_addrmap(AS_IO, &ipc_state::ipc_io); pit8253_device &pit(PIT8253(config, "pit", 0)); pit.set_clk<0>(XTAL(19'660'800) / 16); pit.set_clk<1>(XTAL(19'660'800) / 16); pit.set_clk<2>(XTAL(19'660'800) / 16); pit.out_handler<0>().set("uart1", FUNC(i8251_device::write_txc)); pit.out_handler<0>().append("uart1", FUNC(i8251_device::write_rxc)); pit.out_handler<1>().set("uart2", FUNC(i8251_device::write_txc)); pit.out_handler<1>().append("uart2", FUNC(i8251_device::write_rxc)); i8251_device &uart1(I8251(config, "uart1", 0)); // 8 data bits, no parity, 1 stop bit, 9600 baud uart1.txd_handler().set("rs232a", FUNC(rs232_port_device::write_txd)); uart1.dtr_handler().set("rs232a", FUNC(rs232_port_device::write_dtr)); uart1.rts_handler().set("rs232a", FUNC(rs232_port_device::write_rts)); rs232_port_device &rs232a(RS232_PORT(config, "rs232a", default_rs232_devices, "terminal")); rs232a.rxd_handler().set("uart1", FUNC(i8251_device::write_rxd)); rs232a.dsr_handler().set("uart1", FUNC(i8251_device::write_dsr)); rs232a.cts_handler().set("uart1", FUNC(i8251_device::write_cts)); i8251_device &uart2(I8251(config, "uart2", 0)); // 8 data bits, no parity, 2 stop bits, 2400 baud uart2.txd_handler().set("rs232b", FUNC(rs232_port_device::write_txd)); uart2.dtr_handler().set("rs232b", FUNC(rs232_port_device::write_dtr)); uart2.rts_handler().set("rs232b", FUNC(rs232_port_device::write_rts)); rs232_port_device &rs232b(RS232_PORT(config, "rs232b", default_rs232_devices, nullptr)); rs232b.rxd_handler().set("uart2", FUNC(i8251_device::write_rxd)); rs232b.dsr_handler().set("uart2", FUNC(i8251_device::write_dsr)); rs232b.cts_handler().set("uart2", FUNC(i8251_device::write_cts)); } /* 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 )