// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Dual Systems 68000 09/12/2009 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/m68000/m68000.h" #include "cpu/i8085/i8085.h" //#include "bus/s100/s100.h" #include "machine/mc2661.h" #include "machine/terminal.h" class dual68_state : public driver_device { public: dual68_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_terminal(*this, "terminal") , m_p_ram(*this, "ram") { } void dual68(machine_config &config); private: void kbd_put(u8 data); DECLARE_WRITE16_MEMBER(terminal_w); void dual68_mem(address_map &map); void sio4_io(address_map &map); void sio4_mem(address_map &map); virtual void machine_reset() override; required_device m_maincpu; required_device m_terminal; required_shared_ptr m_p_ram; //uint8_t m_term_data; }; WRITE16_MEMBER( dual68_state::terminal_w ) { m_terminal->write(space, 0, data >> 8); } void dual68_state::dual68_mem(address_map &map) { map.unmap_value_high(); map(0x00000000, 0x0000ffff).ram().share("ram"); map(0x00080000, 0x00081fff).rom().region("user1", 0); map(0x007f0000, 0x007f0001).w(FUNC(dual68_state::terminal_w)); map(0x00800000, 0x00801fff).rom().region("user1", 0); } void dual68_state::sio4_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x07ff).rom(); map(0x0800, 0xffff).ram(); } void dual68_state::sio4_io(address_map &map) { map.unmap_value_high(); map(0x20, 0x23).rw("usart1", FUNC(mc2661_device::read), FUNC(mc2661_device::write)); map(0x28, 0x2b).rw("usart2", FUNC(mc2661_device::read), FUNC(mc2661_device::write)); map(0x30, 0x33).rw("usart3", FUNC(mc2661_device::read), FUNC(mc2661_device::write)); map(0x38, 0x3b).rw("usart4", FUNC(mc2661_device::read), FUNC(mc2661_device::write)); } /* Input ports */ static INPUT_PORTS_START( dual68 ) INPUT_PORTS_END void dual68_state::machine_reset() { uint8_t* user1 = memregion("user1")->base(); memcpy((uint8_t*)m_p_ram.target(),user1,0x2000); m_maincpu->reset(); } void dual68_state::kbd_put(u8 data) { //m_term_data = data; } MACHINE_CONFIG_START(dual68_state::dual68) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", M68000, 16_MHz_XTAL / 2) // MC68000L8 MCFG_DEVICE_PROGRAM_MAP(dual68_mem) MCFG_DEVICE_ADD("siocpu", I8085A, 9.8304_MHz_XTAL) // NEC D8085AC-2 MCFG_DEVICE_PROGRAM_MAP(sio4_mem) MCFG_DEVICE_IO_MAP(sio4_io) /* video hardware */ GENERIC_TERMINAL(config, m_terminal, 0); m_terminal->set_keyboard_callback(FUNC(dual68_state::kbd_put)); MCFG_DEVICE_ADD("usart1", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B MCFG_DEVICE_ADD("usart2", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B MCFG_DEVICE_ADD("usart3", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B MCFG_DEVICE_ADD("usart4", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B MACHINE_CONFIG_END /* ROM definition */ ROM_START( dual68 ) ROM_REGION( 0x2000, "user1", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS( 0, "v1", "2 * 4KB" ) ROMX_LOAD("dual_cpu68000_1.bin", 0x0001, 0x1000, CRC(d1785c08) SHA1(73c1f68875f1d8eb5e92f4347f509c61103da90f),ROM_SKIP(1) | ROM_BIOS(0)) ROMX_LOAD("dual_cpu68000_2.bin", 0x0000, 0x1000, CRC(b9f1ba3c) SHA1(8fd02936ad06d5a22d435d96f06e2442fc7d00ec),ROM_SKIP(1) | ROM_BIOS(0)) ROM_SYSTEM_BIOS( 1, "v2", "2 * 2KB" ) ROMX_LOAD("dual.u2.bin", 0x0001, 0x0800, CRC(e9c44fcd) SHA1(d5cc609d6f5e6745d5f0af1aa6dc66012333ed60),ROM_SKIP(1) | ROM_BIOS(1)) ROMX_LOAD("dual.u3.bin", 0x0000, 0x0800, CRC(827b049f) SHA1(8209f8ab3d1068e5bab51e7eb12be46d4ea28354),ROM_SKIP(1) | ROM_BIOS(1)) ROM_REGION( 0x10000, "siocpu", ROMREGION_ERASEFF ) ROM_LOAD("dual_sio4.bin", 0x0000, 0x0800, CRC(6b0a1965) SHA1(5d2dc6c6a315293ded4b9fc95c8ac1599bf31dd3)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1981, dual68, 0, 0, dual68, dual68, dual68_state, empty_init, "Dual Systems Corporation", "Dual Systems 68000", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)