// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Jade JGZ80 (with Serial Parallel Interrupt Controller) Single board Z80 computer on a S100 card. The SPIO board adds four CTCs, two SIOs and one PIO. 2013-09-12 Skeleton driver. No info found as yet. It takes about 8 seconds to start up. Type HE to get a list of commands. ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/clock.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); void io_map(address_map &map); void mem_map(address_map &map); private: 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 MACHINE_CONFIG_START(jade_state::jade) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu",Z80, XTAL(4'000'000)) MCFG_DEVICE_PROGRAM_MAP(mem_map) MCFG_DEVICE_IO_MAP(io_map) MCFG_DEVICE_ADD("ctc1", Z80CTC, XTAL(4'000'000)) MCFG_DEVICE_ADD("ctc2", Z80CTC, XTAL(4'000'000)) MCFG_Z80CTC_ZC0_CB(WRITELINE("sio", z80sio_device, rxca_w)) MCFG_DEVCB_CHAIN_OUTPUT(WRITELINE("sio", z80sio_device, txca_w)) MCFG_DEVICE_ADD("trg0", CLOCK, XTAL(4'000'000) / 2) MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE("ctc2", z80ctc_device, trg0)) /* Devices */ MCFG_DEVICE_ADD("sio", Z80SIO, XTAL(4'000'000)) //MCFG_Z80SIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) // no evidence of a daisy chain because IM2 is not set MCFG_Z80SIO_OUT_TXDA_CB(WRITELINE("rs232", rs232_port_device, write_txd)) MCFG_Z80SIO_OUT_DTRA_CB(WRITELINE("rs232", rs232_port_device, write_dtr)) MCFG_Z80SIO_OUT_RTSA_CB(WRITELINE("rs232", rs232_port_device, write_rts)) MCFG_DEVICE_ADD("rs232", RS232_PORT, default_rs232_devices, "terminal") MCFG_RS232_RXD_HANDLER(WRITELINE("sio", z80sio_device, rxa_w)) MCFG_RS232_CTS_HANDLER(WRITELINE("sio", z80sio_device, ctsa_w)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( jgz80 ) ROM_REGION( 0x800, "roms", 0 ) ROM_LOAD( "jgz80.rom", 0x0000, 0x0800, CRC(90c4a1ef) SHA1(8a93a11051cc27f3edca24f0f4297ebe0099964e) ) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1983, jgz80, 0, 0, jade, jade, jade_state, empty_init, "Jade Computer Products", "JGZ80", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )