// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Mera-Elzab Konin It's an industrial computer used in Poland No information has been found. All code is guesswork. 2011-12-29 Skeleton driver. 2016-07-15 Added terminal and uart. Press E to see some messages. Terminal settings: 8 data bits, 2 stop bits, no parity @ 9600 ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "machine/i8212.h" #include "machine/i8214.h" #include "machine/i8251.h" #include "machine/pit8253.h" #include "machine/i8255.h" #include "bus/rs232/rs232.h" class konin_state : public driver_device { public: konin_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_picu(*this, "picu") , m_ioppi(*this, "ioppi") , m_iopit(*this, "iopit") { } void konin(machine_config &config); private: DECLARE_WRITE_LINE_MEMBER(picu_r3_w); void io_map(address_map &map); void mem_map(address_map &map); virtual void machine_start() override; required_device m_maincpu; required_device m_picu; required_device m_ioppi; required_device m_iopit; }; WRITE_LINE_MEMBER(konin_state::picu_r3_w) { m_picu->r_w(4, !state); } void konin_state::mem_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x4fff).rom(); map(0x5000, 0x7fff).ram(); map(0xf200, 0xf200).nopw(); // watchdog? map(0xf400, 0xfbff).ram(); map(0xfc80, 0xfc83).rw("mainppi", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0xfc84, 0xfc87).rw("mainpit", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0xff00, 0xffff).ram(); } void konin_state::io_map(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x24, 0x24).w(m_picu, FUNC(i8214_device::b_w)); map(0x80, 0x83).lrw8( NAME([this](offs_t offset) { return m_ioppi->read(offset^3); }), NAME([this](offs_t offset, u8 data) { m_ioppi->write(offset^3, data); })); map(0xf6, 0xf6).rw("uart", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); map(0xf7, 0xf7).rw("uart", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); map(0xf8, 0xfb).lrw8( NAME([this](offs_t offset) { return m_iopit->read(offset^3); }), NAME([this](offs_t offset, u8 data) { m_iopit->write(offset^3, data); })); } /* Input ports */ static INPUT_PORTS_START( konin ) INPUT_PORTS_END void konin_state::machine_start() { } void konin_state::konin(machine_config &config) { /* basic machine hardware */ i8080_cpu_device &maincpu(I8080(config, m_maincpu, XTAL(4'000'000))); maincpu.set_addrmap(AS_PROGRAM, &konin_state::mem_map); maincpu.set_addrmap(AS_IO, &konin_state::io_map); maincpu.out_inte_func().set(m_picu, FUNC(i8214_device::inte_w)); maincpu.set_irq_acknowledge_callback("intlatch", FUNC(i8212_device::inta_cb)); i8212_device &intlatch(I8212(config, "intlatch", 0)); intlatch.md_rd_callback().set_constant(0); intlatch.di_rd_callback().set(m_picu, FUNC(i8214_device::vector_r)); intlatch.int_wr_callback().set_inputline("maincpu", I8085_INTR_LINE); I8214(config, m_picu, XTAL(4'000'000)); m_picu->int_wr_callback().set("intlatch", FUNC(i8212_device::stb_w)); pit8253_device &mainpit(PIT8253(config, "mainpit", 0)); // wild guess at UART clock and source mainpit.set_clk<0>(1536000); mainpit.out_handler<0>().set("uart", FUNC(i8251_device::write_txc)); mainpit.out_handler<0>().append("uart", FUNC(i8251_device::write_rxc)); I8255(config, "mainppi", 0); PIT8253(config, m_iopit, 0); I8255(config, m_ioppi, 0); i8251_device &uart(I8251(config, "uart", 0)); uart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); uart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr)); uart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); uart.rxrdy_handler().set(FUNC(konin_state::picu_r3_w)); rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal")); rs232.rxd_handler().set("uart", FUNC(i8251_device::write_rxd)); rs232.dsr_handler().set("uart", FUNC(i8251_device::write_dsr)); rs232.cts_handler().set("uart", FUNC(i8251_device::write_cts)); } /* ROM definition */ ROM_START( konin ) ROM_REGION( 0x5000, "maincpu", 0 ) ROM_LOAD( "001.bin", 0x0000, 0x0800, CRC(0b13208a) SHA1(38ea17be591b729158d601c03bfd9954f32e0e67)) ROM_LOAD( "008.bin", 0x0800, 0x0800, CRC(f003e407) SHA1(11f79ef3b90788cf627ee39705bbbd04dbf45f50)) ROM_LOAD( "007.bin", 0x1000, 0x0800, CRC(3d390c03) SHA1(ac2fe31c065e8f630381d6cebd2eb58b403c1e02)) ROM_LOAD( "006.bin", 0x1800, 0x0800, CRC(68c9732e) SHA1(f40a79719dca485a2db29be5c0c781f559c2551c)) ROM_LOAD( "005.bin", 0x2000, 0x0800, CRC(14548ac4) SHA1(8987e528b3e479c4c5941366628f34f086d06838)) ROM_LOAD( "004.bin", 0x2800, 0x0800, CRC(8a354cff) SHA1(24d9f1fb15458fc96f5265f79d54e030b68d9fc9)) ROM_LOAD( "002.bin", 0x3000, 0x0800, CRC(791fb30d) SHA1(8dfbe0edb741e02cfdd138432999f89480b20471)) ROM_LOAD( "003.bin", 0x3800, 0x0800, CRC(27dc9864) SHA1(0d3da7fd1db895883c106f5133f8c7228333ecc8)) ROM_LOAD( "009.bin", 0x4000, 0x0800, CRC(80947d15) SHA1(0757fb191913d79f306874684f9fc082ce18a28e)) ROM_LOAD( "010.bin", 0x4800, 0x0800, CRC(f0157e0c) SHA1(60ace1eaf0ba01a45987c2286e18f3d56441c994)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 198?, konin, 0, 0, konin, konin, konin_state, empty_init, "Mera-Elzab", "Konin", MACHINE_IS_SKELETON | MACHINE_SUPPORTS_SAVE )