// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Single board Z80 computer on a S100 card (not the JGZ80). The Jade SPIO board adds four CTCs, two SIOs and one PIO. 2013-09-12 Skeleton driver. No info found as yet. Type HE to get a list of commands. If you hit a key as soon as it is started, the system will present a prompt and work. Otherwise it runs into the weeds because the rom banking isn't yet emulated. ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/z80ctc.h" #include "machine/z80sio.h" #include "bus/rs232/rs232.h" //#include "bus/s100/s100.h" class jade_state : public driver_device { public: jade_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } void jade(machine_config &config); private: void io_map(address_map &map); void mem_map(address_map &map); required_device m_maincpu; }; void jade_state::mem_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x07ff).rom().region("roms", 0); map(0x0800, 0xffff).ram(); } void jade_state::io_map(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x28, 0x2b).rw("ctc2", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x30, 0x33).rw("sio", FUNC(z80sio_device::cd_ba_r), FUNC(z80sio_device::cd_ba_w)); map(0x40, 0x43).rw("ctc1", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); } /* Input ports */ static INPUT_PORTS_START( jade ) INPUT_PORTS_END void jade_state::jade(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, XTAL(4'000'000)); m_maincpu->set_addrmap(AS_PROGRAM, &jade_state::mem_map); m_maincpu->set_addrmap(AS_IO, &jade_state::io_map); Z80CTC(config, "ctc1", 4_MHz_XTAL); z80ctc_device &ctc2(Z80CTC(config, "ctc2", 4_MHz_XTAL)); ctc2.set_clk<0>(4_MHz_XTAL / 2); ctc2.zc_callback<0>().set("sio", FUNC(z80sio_device::rxca_w)); ctc2.zc_callback<0>().append("sio", FUNC(z80sio_device::txca_w)); /* Devices */ z80sio_device& sio(Z80SIO(config, "sio", 4_MHz_XTAL)); //sio.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); // no evidence of a daisy chain because IM2 is not set sio.out_txda_callback().set("rs232", FUNC(rs232_port_device::write_txd)); sio.out_dtra_callback().set("rs232", FUNC(rs232_port_device::write_dtr)); sio.out_rtsa_callback().set("rs232", FUNC(rs232_port_device::write_rts)); rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal")); rs232.rxd_handler().set("sio", FUNC(z80sio_device::rxa_w)); rs232.cts_handler().set("sio", FUNC(z80sio_device::ctsa_w)); } /* ROM definition */ ROM_START( jade ) ROM_REGION( 0x800, "roms", 0 ) ROM_LOAD( "jade.rom", 0x0000, 0x0800, CRC(90c4a1ef) SHA1(8a93a11051cc27f3edca24f0f4297ebe0099964e) ) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1983, jade, 0, 0, jade, jade, jade_state, empty_init, "Jade Computer Products", "unknown S-100 computer with Serial/Parallel/Interrupt Controller", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )