// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** 4004 Nixie Clock 03/08/2009 Initial driver ****************************************************************************/ #include "emu.h" #include "cpu/mcs40/mcs40.h" #include "machine/clock.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "speaker.h" #include "4004clk.lh" class nixieclock_state : public driver_device { public: nixieclock_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_nixie_out(*this, "nixie%u", 0U) , m_neon_out(*this, "neon%u", 0U) { } void _4004clk(machine_config &config); private: DECLARE_WRITE8_MEMBER( nixie_w ); DECLARE_WRITE8_MEMBER( neon_w ); void _4004clk_mem(address_map &map); void _4004clk_mp(address_map &map); void _4004clk_rom(address_map &map); void _4004clk_rp(address_map &map); void _4004clk_stat(address_map &map); virtual void machine_start() override; static constexpr uint8_t nixie_to_num(uint16_t val) { return (BIT(val, 0)) ? 0 : (BIT(val, 1)) ? 1 : (BIT(val, 2)) ? 2 : (BIT(val, 3)) ? 3 : (BIT(val, 4)) ? 4 : (BIT(val, 5)) ? 5 : (BIT(val, 6)) ? 6 : (BIT(val, 7)) ? 7 : (BIT(val, 8)) ? 8 : (BIT(val, 9)) ? 9 : 10; } uint16_t m_nixie[16]; output_finder<6> m_nixie_out; output_finder<4> m_neon_out; }; WRITE8_MEMBER(nixieclock_state::nixie_w) { m_nixie[offset >> 4] = data; m_nixie_out[5] = nixie_to_num(((m_nixie[2] & 3)<<8) | (m_nixie[1] << 4) | m_nixie[0]); m_nixie_out[4] = nixie_to_num((m_nixie[4] << 6) | (m_nixie[3] << 2) | (m_nixie[2] >>2)); m_nixie_out[3] = nixie_to_num(((m_nixie[7] & 3)<<8) | (m_nixie[6] << 4) | m_nixie[5]); m_nixie_out[2] = nixie_to_num((m_nixie[9] << 6) | (m_nixie[8] << 2) | (m_nixie[7] >>2)); m_nixie_out[1] = nixie_to_num(((m_nixie[12] & 3)<<8) | (m_nixie[11] << 4) | m_nixie[10]); m_nixie_out[0] = nixie_to_num((m_nixie[14] << 6) | (m_nixie[13] << 2) | (m_nixie[12] >>2)); } WRITE8_MEMBER(nixieclock_state::neon_w) { m_neon_out[0] = BIT(data,3); m_neon_out[1] = BIT(data,2); m_neon_out[2] = BIT(data,1); m_neon_out[3] = BIT(data,0); } void nixieclock_state::_4004clk_rom(address_map &map) { map(0x0000, 0x0fff).rom().region("maincpu", 0); } void nixieclock_state::_4004clk_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x007f).ram(); } void nixieclock_state::_4004clk_stat(address_map &map) { map.unmap_value_high(); map(0x0000, 0x001f).ram(); } void nixieclock_state::_4004clk_rp(address_map &map) { map.unmap_value_high(); map(0x0000, 0x000f).mirror(0x0700).portr("INPUT"); map(0x0000, 0x00ef).mirror(0x0700).w(FUNC(nixieclock_state::nixie_w)); map(0x00f0, 0x00ff).mirror(0x0700).w(FUNC(nixieclock_state::neon_w)); } void nixieclock_state::_4004clk_mp(address_map &map) { map(0x00, 0x00).w("dac", FUNC(dac_bit_interface::data_w)); } /* Input ports */ static INPUT_PORTS_START( 4004clk ) PORT_START("INPUT") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Select") PORT_CODE(KEYCODE_1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Browse") PORT_CODE(KEYCODE_2) PORT_CONFNAME( 0x04, 0x00, "Tick-Tock") PORT_CONFSETTING( 0x00, "ON" ) PORT_CONFSETTING( 0x04, "OFF" ) PORT_CONFNAME( 0x08, 0x08, "50/60 Hz") PORT_CONFSETTING( 0x00, "50 Hz" ) PORT_CONFSETTING( 0x08, "60 Hz" ) INPUT_PORTS_END void nixieclock_state::machine_start() { m_nixie_out.resolve(); m_neon_out.resolve(); /* register for state saving */ save_pointer(NAME(m_nixie), 6); } MACHINE_CONFIG_START(nixieclock_state::_4004clk) /* basic machine hardware */ i4004_cpu_device &cpu(I4004(config, "maincpu", 5_MHz_XTAL / 8)); cpu.set_rom_map(&nixieclock_state::_4004clk_rom); cpu.set_ram_memory_map(&nixieclock_state::_4004clk_mem); cpu.set_rom_ports_map(&nixieclock_state::_4004clk_rp); cpu.set_ram_status_map(&nixieclock_state::_4004clk_stat); cpu.set_ram_ports_map(&nixieclock_state::_4004clk_mp); /* video hardware */ config.set_default_layout(layout_4004clk); /* sound hardware */ SPEAKER(config, "speaker").front_center(); MCFG_DEVICE_ADD("dac", DAC_1BIT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.25) MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0) MCFG_SOUND_ROUTE(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_CLOCK_ADD("clk", 60) MCFG_CLOCK_SIGNAL_HANDLER(INPUTLINE("maincpu", I4004_TEST_LINE)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( 4004clk ) ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "clock.u30", 0x0000, 0x0100, CRC(3d8608a5) SHA1(47fa0a91779e1afc34592f91068f8af2e74593d4)) ROM_LOAD( "clock.u31", 0x0100, 0x0100, CRC(c83af4bc) SHA1(c8bd7ff1322e5ad280364ed87fc9e2ed38120c21)) ROM_LOAD( "clock.u32", 0x0200, 0x0100, CRC(72442ae7) SHA1(dc25269cf9db7a9e70a86fededeb01efecf80fe7)) ROM_LOAD( "clock.u33", 0x0300, 0x0100, CRC(74789383) SHA1(ca5ef2c42dae1761599ead56498fb0bfa0db80a5)) ROM_LOAD( "clock.u34", 0x0400, 0x0100, CRC(d817cc54) SHA1(a54e744465dde20d37ba54bf2bdb1c4708235f9a)) ROM_LOAD( "clock.u35", 0x0500, 0x0100, CRC(ece36d21) SHA1(c8cf7e08e90463e910ed2d21d8e562e73d7e0b08)) ROM_LOAD( "clock.u36", 0x0600, 0x0100, CRC(65aa3cb1) SHA1(9b134bd46747a1bccc004c347b3162e9dc846426)) ROM_LOAD( "clock.u37", 0x0700, 0x0100, CRC(4c2a2632) SHA1(5f75c2d67571ffcfb98f37944f7f4bc7f531c109)) ROM_LOAD( "clock.u38", 0x0800, 0x0100, CRC(133da0d6) SHA1(08863a287471c0e77f27cea087cb4a3b372d49c1)) ROM_LOAD( "clock.u39", 0x0900, 0x0100, CRC(0628593c) SHA1(34249753056cd425e0d48c188c830d64464006c9)) ROM_LOAD( "clock.u40", 0x0A00, 0x0100, CRC(1c2e94b5) SHA1(89e6c70b936fd9882a229de671dcada7c39b9e8e)) ROM_LOAD( "clock.u41", 0x0B00, 0x0100, CRC(48b4510d) SHA1(17c5eedc36b469bfae23e204c614ccc01bd4df02)) ROM_LOAD( "clock.u42", 0x0C00, 0x0100, CRC(4b768675) SHA1(8862b9911bd5907e679539c1e98921f0686b8a76)) ROM_LOAD( "clock.u43", 0x0D00, 0x0100, CRC(df8db80f) SHA1(34ef8e9ae9fd4e88659e1e14759a2baf1cf589a5)) ROM_LOAD( "clock.u44", 0x0E00, 0x0100, CRC(23037c71) SHA1(87702bdf5985fa58d4cabcc0d4530e229bfebcbb)) ROM_LOAD( "clock.u45", 0x0F00, 0x0100, CRC(a8d419ef) SHA1(86742a5ad410c027e9cf9a95e2006dc1128715e5)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS SYST( 2008, 4004clk, 0, 0, _4004clk, 4004clk, nixieclock_state, empty_init, "John L. Weinrich", "4004 Nixie Clock", MACHINE_SUPPORTS_SAVE )