// license:BSD-3-Clause // copyright-holders:AJR /******************************************************************************* Skeleton driver for Wyse WY-30+ terminal. This low-end video terminal is the successor to the WY-30, whose control board features an entirely different hardware configuration. *******************************************************************************/ #include "emu.h" #include "cpu/mcs51/mcs51.h" #include "machine/eepromser.h" #include "screen.h" class wy30p_state : public driver_device { public: wy30p_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_eeprom(*this, "eeprom") , m_screen(*this, "screen") { } void wy30p(machine_config &config); protected: virtual void machine_start() override; virtual void driver_start() override; private: u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); u8 p3_r(); u8 de00_r(); void prog_map(address_map &map); void ext_map(address_map &map); required_device m_eeprom; required_device m_screen; }; void wy30p_state::machine_start() { } u32 wy30p_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; } u8 wy30p_state::p3_r() { return 0xdf | (m_eeprom->do_read() << 5); } u8 wy30p_state::de00_r() { return m_screen->vblank() << 7; // probably not correct } void wy30p_state::prog_map(address_map &map) { map(0x0000, 0x3fff).mirror(0xc000).rom().region("program", 0); } void wy30p_state::ext_map(address_map &map) { map(0x0000, 0x1fff).ram(); map(0xa000, 0xa7ff).ram(); map(0xde00, 0xde00).mirror(0xff).r(FUNC(wy30p_state::de00_r)); } static INPUT_PORTS_START(wy30p) INPUT_PORTS_END void wy30p_state::wy30p(machine_config &config) { i8031_device &maincpu(I8031(config, "maincpu", 7.3728_MHz_XTAL)); maincpu.set_addrmap(AS_PROGRAM, &wy30p_state::prog_map); maincpu.set_addrmap(AS_IO, &wy30p_state::ext_map); maincpu.port_in_cb<3>().set(FUNC(wy30p_state::p3_r)); maincpu.port_out_cb<3>().set(m_eeprom, FUNC(eeprom_serial_er5911_device::cs_write)).bit(3); maincpu.port_out_cb<3>().append(m_eeprom, FUNC(eeprom_serial_er5911_device::clk_write)).bit(4); maincpu.port_out_cb<3>().append(m_eeprom, FUNC(eeprom_serial_er5911_device::di_write)).bit(5); EEPROM_ER5911_8BIT(config, m_eeprom); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_raw(31.2795_MHz_XTAL * 2 / 3, 1050, 0, 800, 331, 0, 312); // divider and dimensions guessed m_screen->set_screen_update(FUNC(wy30p_state::screen_update)); } // PCB: "© 1989 990710-01 REV.B1" // CPU: Intel P8031AH // Program EPROM: 250971-02 (M27128MFI) "© WYSE TECH 92' REV.A" // Nonvolatile memory: CSI CAT59C11P // RAM: TC5565APL-12, HY6116AP-15 // QFP gate array: 211019-02 (Oki M76V020) "© WYSE,1989" // Jumper near gate array: "FONT SIZE" = "8Kx8" or "2Kx8" (J3) // XTALs: 31.2795 (dot clock?), 7.3728 (for CPU) // DB-25 connectors: "MDM" & "AUX" ROM_START(wy30p) ROM_REGION(0x4000, "program", 0) ROM_LOAD("250971-02.u4", 0x0000, 0x4000, CRC(3666549c) SHA1(23c432da2083df4b355daf566dd6514d1f9a7690)) ROM_END void wy30p_state::driver_start() { uint8_t *rom = memregion("program")->base(); for (offs_t base = 0x0000; base < 0x4000; base += 0x2000) { std::vector orig(&rom[base], &rom[base + 0x2000]); // Line swaps can be confusing... for (offs_t offset = 0; offset < 0x2000; offset++) rom[base | offset] = bitswap<8>(orig[bitswap<13>(offset, 8, 5, 0, 4, 3, 9, 7, 10, 11, 12, 2, 6, 1)], 3, 4, 5, 6, 7, 2, 1, 0); } } COMP(1992, wy30p, 0, 0, wy30p, wy30p, wy30p_state, empty_init, "Wyse Technology", "WY-30+ (v1.8)", MACHINE_IS_SKELETON)