// license:BSD-3-Clause // copyright-holders:AJR /**************************************************************************** Skeleton driver for MC88100-based NCD X terminals. ****************************************************************************/ #include "emu.h" #include "cpu/m88000/m88000.h" #include "screen.h" class ncd88k_state : public driver_device { public: ncd88k_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_screen(*this, "screen") { } void ncd19c(machine_config &config); private: u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void code_map(address_map &map); void data_map(address_map &map); required_device m_maincpu; required_device m_screen; }; u32 ncd88k_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; } void ncd88k_state::code_map(address_map &map) { map(0x00000000, 0x000015fff).rom().region("program", 0); } void ncd88k_state::data_map(address_map &map) { } static INPUT_PORTS_START(ncd19c) INPUT_PORTS_END void ncd88k_state::ncd19c(machine_config &config) { MC88100(config, m_maincpu, 15'000'000); m_maincpu->set_addrmap(AS_PROGRAM, &ncd88k_state::code_map); m_maincpu->set_addrmap(AS_DATA, &ncd88k_state::data_map); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_raw(125'000'000, 1680, 0, 1280, 1063, 0, 1024); // 74.4 kHz horizontal, 70 Hz vertical m_screen->set_screen_update(FUNC(ncd88k_state::screen_update)); } ROM_START(ncd19c) ROM_REGION32_BE(0x16000, "program", 0) // These dumps have very strange lengths. The actual ROMs should be standard EEPROM types. ROM_LOAD16_BYTE("ncd19c-e.rom", 0x0000, 0xb000, CRC(01e31b42) SHA1(28da6e4465415d00a739742ded7937a144129aad) BAD_DUMP) ROM_LOAD16_BYTE("ncd19c-o.rom", 0x0001, 0xb000, CRC(dfd9be7c) SHA1(2e99a325b039f8c3bb89833cd1940e6737b64d79) BAD_DUMP) ROM_END COMP(1990, ncd19c, 0, 0, ncd19c, ncd19c, ncd88k_state, empty_init, "Network Computing Devices", "NCD19c", MACHINE_IS_SKELETON)