// license:BSD-3-Clause // copyright-holders:AJR /*********************************************************************************************************************************** Skeleton driver for ITT Courier 9216 IBM 3179-compatible color display terminal. ************************************************************************************************************************************/ #include "emu.h" #include "cpu/m68000/m68000.h" #include "cpu/mcs48/mcs48.h" class itt9216_state : public driver_device { public: itt9216_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_program(*this, "program") , m_chargen(*this, "chargen") { } void itt9216(machine_config &config); protected: virtual void machine_start() override; virtual void machine_reset() override; private: u8 ram_rom_r(offs_t offset); void ram_w(offs_t offset, u8 data); void mem_map(address_map &map); required_device m_maincpu; required_region_ptr m_program; required_region_ptr m_chargen; std::unique_ptr m_mainram; bool m_rom_enabled; }; void itt9216_state::machine_start() { m_mainram = make_unique_clear(0x10000); save_item(NAME(m_rom_enabled)); save_pointer(NAME(m_mainram), 0x10000); } void itt9216_state::machine_reset() { m_rom_enabled = true; } u8 itt9216_state::ram_rom_r(offs_t offset) { if (m_rom_enabled) return m_program[offset & 0x1fff]; else return m_mainram[offset]; } void itt9216_state::ram_w(offs_t offset, u8 data) { m_mainram[offset] = data; if (!machine().side_effects_disabled()) m_rom_enabled = false; } void itt9216_state::mem_map(address_map &map) { map(0x00000, 0x0ffff).rw(FUNC(itt9216_state::ram_rom_r), FUNC(itt9216_state::ram_w)); map(0x10000, 0x11fff).ram(); map(0x58000, 0x59fff).rom().region("program", 0); map(0x62000, 0x62fff).ram(); } static INPUT_PORTS_START(itt9216) INPUT_PORTS_END void itt9216_state::itt9216(machine_config &config) { M68008(config, m_maincpu, 8000000); // clock unknown m_maincpu->set_addrmap(AS_PROGRAM, &itt9216_state::mem_map); I8741A(config, "upi", 6000000).set_disable(); // clock unknown } // XTALs: 38.080 MHz (U7), 11.250(?) MHz (U1) // ICs on main board: MC68008P8 (U33), 701188-001 PLCC ASIC (U58), empty PLCC (U45), beeper // ICs on keyboard simulator board: 700881-001 PLCC ASIC (U12), DP8340N (U16), DP8341N (U15), D8741A (U1) ROM_START(itt9216) ROM_REGION(0x2000, "program", 0) ROM_LOAD("174054-007.u52", 0x0000, 0x2000, CRC(be1f85c8) SHA1(8c44ff6166c43b524f41133053fa82f5c48047d8)) ROM_REGION(0x400, "upi", 0) ROM_LOAD("174065-003.u1", 0x000, 0x400, NO_DUMP) ROM_REGION(0x2000, "chargen", 0) ROM_LOAD("174055-004.u40", 0x0000, 0x2000, CRC(c8611425) SHA1(31fbdd6ff72a96c59277b6edac9a6360f6e1e49e)) ROM_END COMP(1986, itt9216, 0, 0, itt9216, itt9216, itt9216_state, empty_init, "ITT Courier", "ITT 9216-X", MACHINE_IS_SKELETON)