diff options
Diffstat (limited to 'src/mame/drivers/4004clk.cpp')
-rw-r--r-- | src/mame/drivers/4004clk.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/mame/drivers/4004clk.cpp b/src/mame/drivers/4004clk.cpp new file mode 100644 index 00000000000..0d750822b7c --- /dev/null +++ b/src/mame/drivers/4004clk.cpp @@ -0,0 +1,193 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic +/*************************************************************************** + + 4004 Nixie Clock + + 03/08/2009 Initial driver + +****************************************************************************/ + +#include "emu.h" +#include "cpu/i4004/i4004.h" +#include "sound/dac.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_maincpu(*this, "maincpu"), + m_dac(*this, "dac"), + m_input(*this, "INPUT") + { } + + required_device<i4004_cpu_device> m_maincpu; + required_device<dac_device> m_dac; + required_ioport m_input; + DECLARE_READ8_MEMBER( data_r ); + DECLARE_WRITE8_MEMBER( nixie_w ); + DECLARE_WRITE8_MEMBER( neon_w ); + DECLARE_WRITE8_MEMBER( relays_w ); + UINT16 m_nixie[16]; + UINT8 m_timer; + virtual void machine_start(); + TIMER_DEVICE_CALLBACK_MEMBER(timer_callback); + UINT8 nixie_to_num(UINT16 val); + inline void output_set_nixie_value(int index, int value); + inline void output_set_neon_value(int index, int value); +}; + +READ8_MEMBER(nixieclock_state::data_r) +{ + return m_input->read() & 0x0f; +} + +UINT8 nixieclock_state::nixie_to_num(UINT16 val) +{ + if (BIT(val,0)) return 0; + if (BIT(val,1)) return 1; + if (BIT(val,2)) return 2; + if (BIT(val,3)) return 3; + if (BIT(val,4)) return 4; + if (BIT(val,5)) return 5; + if (BIT(val,6)) return 6; + if (BIT(val,7)) return 7; + if (BIT(val,8)) return 8; + if (BIT(val,9)) return 9; + return 10; +} + +inline void nixieclock_state::output_set_nixie_value(int index, int value) +{ + output_set_indexed_value("nixie", index, value); +} + +inline void nixieclock_state::output_set_neon_value(int index, int value) +{ + output_set_indexed_value("neon", index, value); +} + +WRITE8_MEMBER(nixieclock_state::nixie_w) +{ + m_nixie[offset] = data; + output_set_nixie_value(5,nixie_to_num(((m_nixie[2] & 3)<<8) | (m_nixie[1] << 4) | m_nixie[0])); + output_set_nixie_value(4,nixie_to_num((m_nixie[4] << 6) | (m_nixie[3] << 2) | (m_nixie[2] >>2))); + output_set_nixie_value(3,nixie_to_num(((m_nixie[7] & 3)<<8) | (m_nixie[6] << 4) | m_nixie[5])); + output_set_nixie_value(2,nixie_to_num((m_nixie[9] << 6) | (m_nixie[8] << 2) | (m_nixie[7] >>2))); + output_set_nixie_value(1,nixie_to_num(((m_nixie[12] & 3)<<8) | (m_nixie[11] << 4) | m_nixie[10])); + output_set_nixie_value(0,nixie_to_num((m_nixie[14] << 6) | (m_nixie[13] << 2) | (m_nixie[12] >>2))); +} + +WRITE8_MEMBER(nixieclock_state::neon_w) +{ + output_set_neon_value(0,BIT(data,3)); + output_set_neon_value(1,BIT(data,2)); + output_set_neon_value(2,BIT(data,1)); + output_set_neon_value(3,BIT(data,0)); +} + +WRITE8_MEMBER(nixieclock_state::relays_w) +{ + m_dac->write_unsigned8((data & 1) ? 0x80 : 0x40); //tick - tock +} + +static ADDRESS_MAP_START(4004clk_rom, AS_PROGRAM, 8, nixieclock_state) + AM_RANGE(0x0000, 0x0FFF) AM_ROM +ADDRESS_MAP_END + +static ADDRESS_MAP_START(4004clk_mem, AS_DATA, 8, nixieclock_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x007F) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( 4004clk_io, AS_IO, 8, nixieclock_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x00, 0x0e) AM_WRITE(nixie_w) + AM_RANGE(0x00, 0x00) AM_READ(data_r) + AM_RANGE(0x0f, 0x0f) AM_WRITE(neon_w) + AM_RANGE(0x10, 0x10) AM_WRITE(relays_w) +ADDRESS_MAP_END + +/* 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 + +/* + 16ms Int generator + __ __ + _| |_| + 0 1 0 1 + +*/ + +TIMER_DEVICE_CALLBACK_MEMBER(nixieclock_state::timer_callback) +{ + m_maincpu->set_test(m_timer); + m_timer^=1; +} + +void nixieclock_state::machine_start() +{ + m_timer = 0; + + /* register for state saving */ + save_item(NAME(m_timer)); + save_pointer(NAME(m_nixie), 6); +} + +static MACHINE_CONFIG_START( 4004clk, nixieclock_state ) + + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",I4004, XTAL_5MHz / 8) + MCFG_CPU_PROGRAM_MAP(4004clk_rom) + MCFG_CPU_DATA_MAP(4004clk_mem) + MCFG_CPU_IO_MAP(4004clk_io) + + /* video hardware */ + MCFG_DEFAULT_LAYOUT(layout_4004clk) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("dac", DAC, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) + + MCFG_TIMER_DRIVER_ADD_PERIODIC("4004clk_timer", nixieclock_state, timer_callback, attotime::from_hz(120)) +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 INIT COMPANY FULLNAME FLAGS */ +SYST( 2008, 4004clk, 0, 0, 4004clk, 4004clk, driver_device, 0, "John L. Weinrich", "4004 Nixie Clock", MACHINE_SUPPORTS_SAVE ) |