// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Morrow Tricep 12/05/2009 Skeleton driver. Several of the boards apparently used in this S-100 system were made by CompuPro/Viasyn, including the CPU 68K and Interfacer 3 (2651 USART multiplexer). ****************************************************************************/ #include "emu.h" #include "bus/rs232/rs232.h" //#include "bus/s100/s100.h" #include "cpu/m68000/m68000.h" #include "machine/mc2661.h" class tricep_state : public driver_device { public: tricep_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_usart(*this, "usart%u", 0) , m_p_ram(*this, "p_ram") { } void tricep(machine_config &config); private: void usart_select_w(uint8_t data); uint8_t usart_r(offs_t offset); void usart_w(offs_t offset, uint8_t data); void tricep_mem(address_map &map); virtual void machine_reset() override; required_device m_maincpu; required_device_array m_usart; required_shared_ptr m_p_ram; uint8_t m_mux; }; void tricep_state::usart_select_w(uint8_t data) { m_mux = data & 3; } uint8_t tricep_state::usart_r(offs_t offset) { return m_usart[m_mux]->read(offset); } void tricep_state::usart_w(offs_t offset, uint8_t data) { m_usart[m_mux]->write(offset, data); } void tricep_state::tricep_mem(address_map &map) { map.unmap_value_high(); map(0x00000000, 0x0007ffff).ram().share("p_ram"); map(0x00fd0000, 0x00fd1fff).rom().region("bios", 0); map(0x00ff0028, 0x00ff002b).rw(FUNC(tricep_state::usart_r), FUNC(tricep_state::usart_w)); map(0x00ff002e, 0x00ff002f).nopr(); map(0x00ff002f, 0x00ff002f).w(FUNC(tricep_state::usart_select_w)); } /* Input ports */ static INPUT_PORTS_START( tricep ) INPUT_PORTS_END void tricep_state::machine_reset() { uint8_t* bios = memregion("bios")->base(); memcpy((uint8_t*)m_p_ram.target(),bios,0x2000); m_maincpu->reset(); m_mux = 0; } static const input_device_default terminal_defaults[] = { DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_9600 ) DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_9600 ) DEVICE_INPUT_DEFAULTS( "RS232_STARTBITS", 0xff, RS232_STARTBITS_1 ) DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_8 ) DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_NONE ) DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 ) { nullptr, 0, 0 } }; void tricep_state::tricep(machine_config &config) { M68000(config, m_maincpu, 20_MHz_XTAL / 2); m_maincpu->set_addrmap(AS_PROGRAM, &tricep_state::tricep_mem); // TODO: MC68451 MMU MC2661(config, m_usart[0], 5.0688_MHz_XTAL); m_usart[0]->txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); m_usart[0]->rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); m_usart[0]->dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr)); MC2661(config, m_usart[1], 5.0688_MHz_XTAL); MC2661(config, m_usart[2], 5.0688_MHz_XTAL); MC2661(config, m_usart[3], 5.0688_MHz_XTAL); rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal")); rs232.rxd_handler().set(m_usart[0], FUNC(mc2661_device::rx_w)); rs232.dsr_handler().set(m_usart[0], FUNC(mc2661_device::dsr_w)); rs232.dcd_handler().set(m_usart[0], FUNC(mc2661_device::dcd_w)); rs232.cts_handler().set(m_usart[0], FUNC(mc2661_device::cts_w)); rs232.set_option_device_input_defaults("terminal", terminal_defaults); } /* ROM definition */ ROM_START( tricep ) ROM_REGION16_BE( 0x2000, "bios", ROMREGION_ERASEFF ) ROM_LOAD16_BYTE( "tri2.4_odd.u37", 0x0001, 0x1000, CRC(31eb2dcf) SHA1(2d9df9262ee1096d0398505e10d209201ac49a5d)) ROM_LOAD16_BYTE( "tri2.4_even.u36", 0x0000, 0x1000, CRC(4414dcdc) SHA1(00a3d293617dc691748ae85b6ccdd6723daefc0a)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1985, tricep, 0, 0, tricep, tricep, tricep_state, empty_init, "Morrow Designs", "Tricep", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)