diff --git a/src/mess/drivers/tc4.c b/src/mess/drivers/tc4.c new file mode 100644 index 00000000000..80fbf7412e4 --- /dev/null +++ b/src/mess/drivers/tc4.c @@ -0,0 +1,225 @@ +// license:BSD-3-Clause +// copyright-holders:hap +/*************************************************************************** + + Coleco Total Control 4 + * TMS1400NLL MP7334-N2 (die labeled MP7334) + + + + TODO: + - MCU clock is unknown + +***************************************************************************/ + +#include "emu.h" +#include "cpu/tms0980/tms0980.h" +#include "sound/speaker.h" + +#include "tc4.lh" + +// The master clock is a single stage RC oscillator: R=27.3K, C=100pf, +//.. +#define MASTER_CLOCK (475000) + + +class tc4_state : public driver_device +{ +public: + tc4_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), +// m_button_matrix(*this, "IN"), + m_speaker(*this, "speaker") + { } + + required_device m_maincpu; +// required_ioport_array<2> m_button_matrix; + required_device m_speaker; + + UINT16 m_r; + UINT16 m_o; + + UINT16 m_display_state[0x10]; + UINT16 m_display_cache[0x10]; + UINT8 m_display_decay[0x100]; + + DECLARE_READ8_MEMBER(read_k); + DECLARE_WRITE16_MEMBER(write_o); + DECLARE_WRITE16_MEMBER(write_r); + + TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick); + void display_update(); + + virtual void machine_start(); +}; + + + +/*************************************************************************** + + LED Display + +***************************************************************************/ + +// The device strobes the outputs very fast, it is unnoticeable to the user. +// To prevent flickering here, we need to simulate a decay. + +// decay time, in steps of 1ms +#define DISPLAY_DECAY_TIME 40 + + +void tc4_state::display_update() +{ + UINT16 active_state[0x10]; + + for (int i = 0; i < 0x10; i++) + { + // update current state (note: R6 as extra column!) + m_display_state[i] = (m_r >> i & 1) ? (m_o | (m_r << 2 & 0x100)) : 0; + + active_state[i] = 0; + + for (int j = 0; j < 0x10; j++) + { + int di = j << 4 | i; + + // turn on powered segments + if (m_display_state[i] >> j & 1) + m_display_decay[di] = DISPLAY_DECAY_TIME; + + // determine active state + int ds = (m_display_decay[di] != 0) ? 1 : 0; + active_state[i] |= (ds << j); + } + } + + // on difference, send to output + for (int i = 0; i < 0x10; i++) + if (m_display_cache[i] != active_state[i]) + { +// if (index_is_7segled(i)) +// output_set_digit_value(i, BITSWAP8(active_state[i],7,0,1,2,3,4,5,6) & 0x7f); + + for (int j = 0; j < 9; j++) + output_set_lamp_value(i*10 + j, active_state[i] >> j & 1); + } + + memcpy(m_display_cache, active_state, sizeof(m_display_cache)); +} + +TIMER_DEVICE_CALLBACK_MEMBER(tc4_state::display_decay_tick) +{ + // slowly turn off unpowered segments + for (int i = 0; i < 0x100; i++) + if (!(m_display_state[i & 0xf] >> (i>>4) & 1) && m_display_decay[i]) + m_display_decay[i]--; + + display_update(); +} + + + +/*************************************************************************** + + I/O + +***************************************************************************/ + +READ8_MEMBER(tc4_state::read_k) +{ + UINT8 k = 0; + + return k; +} + +WRITE16_MEMBER(tc4_state::write_o) +{ +} + +WRITE16_MEMBER(tc4_state::write_r) +{ +} + + + + +/*************************************************************************** + + Inputs + +***************************************************************************/ + +static INPUT_PORTS_START( tc4 ) +INPUT_PORTS_END + + + + +/*************************************************************************** + + Machine Config + +***************************************************************************/ + +void tc4_state::machine_start() +{ + // zerofill + memset(m_display_state, 0, sizeof(m_display_state)); + memset(m_display_cache, 0, sizeof(m_display_cache)); + memset(m_display_decay, 0, sizeof(m_display_decay)); + + m_r = 0; + m_o = 0; + + // register for savestates + save_item(NAME(m_display_state)); + save_item(NAME(m_display_cache)); + save_item(NAME(m_display_decay)); + + save_item(NAME(m_r)); + save_item(NAME(m_o)); +} + + +static MACHINE_CONFIG_START( tc4, tc4_state ) + + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", TMS1400, MASTER_CLOCK) + MCFG_TMS1XXX_READ_K_CB(READ8(tc4_state, read_k)) + MCFG_TMS1XXX_WRITE_O_CB(WRITE16(tc4_state, write_o)) + MCFG_TMS1XXX_WRITE_R_CB(WRITE16(tc4_state, write_r)) + + MCFG_TIMER_DRIVER_ADD_PERIODIC("display_decay", tc4_state, display_decay_tick, attotime::from_msec(1)) + + MCFG_DEFAULT_LAYOUT(layout_tc4) + + /* no video! */ + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) +MACHINE_CONFIG_END + + + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +ROM_START( tc4 ) + ROM_REGION( 0x1000, "maincpu", 0 ) + ROM_LOAD( "tms1400nll_mp7334", 0x0000, 0x1000, CRC(923f3821) SHA1(a9ae342d7ff8dae1dedcd1e4984bcfae68586581) ) + + ROM_REGION( 867, "maincpu:mpla", 0 ) + ROM_LOAD( "tms1100_default_mpla.pla", 0, 867, CRC(62445fc9) SHA1(d6297f2a4bc7a870b76cc498d19dbb0ce7d69fec) ) + ROM_REGION( 557, "maincpu:opla", 0 ) + ROM_LOAD( "tms1400_tc4_opla.pla", 0, 557, CRC(3b908725) SHA1(f83bf5faa5b3cb51f87adc1639b00d6f9a71ad19) ) +ROM_END + + + +CONS( 1981, tc4, 0, 0, tc4, tc4, driver_device, 0, "Coleco", "Total Control 4", GAME_NOT_WORKING | GAME_SUPPORTS_SAVE ) diff --git a/src/mess/layout/tc4.lay b/src/mess/layout/tc4.lay new file mode 100644 index 00000000000..a202f557704 --- /dev/null +++ b/src/mess/layout/tc4.lay @@ -0,0 +1,20 @@ + + + + + + + + + + + + + + + + + + + + diff --git a/src/mess/mess.lst b/src/mess/mess.lst index 1e5bf798292..dde03cb7447 100644 --- a/src/mess/mess.lst +++ b/src/mess/mess.lst @@ -2615,3 +2615,4 @@ wildfire tmtennis alnchase edracula +tc4 diff --git a/src/mess/mess.mak b/src/mess/mess.mak index 0fbd6f207de..1fe40cd2339 100644 --- a/src/mess/mess.mak +++ b/src/mess/mess.mak @@ -1132,6 +1132,7 @@ $(MESSOBJ)/coleco.a: \ $(MESS_DRIVERS)/coleco.o \ $(MESS_MACHINE)/coleco.o \ $(MESS_DRIVERS)/amaztron.o \ + $(MESS_DRIVERS)/tc4.o \ $(MESSOBJ)/cromemco.a: \ $(MESS_DRIVERS)/c10.o \ @@ -2204,6 +2205,7 @@ $(MESS_DRIVERS)/sym1.o: $(MESS_LAYOUT)/sym1.lh $(MESS_DRIVERS)/tandy12.o: $(MESS_LAYOUT)/tandy12.lh $(MESS_DRIVERS)/tavernie.o: $(MESS_LAYOUT)/tavernie.lh $(MESS_DRIVERS)/tb303.o: $(MESS_LAYOUT)/tb303.lh +$(MESS_DRIVERS)/tc4.o: $(MESS_LAYOUT)/tc4.lh $(MESS_DRIVERS)/tec1.o: $(MESS_LAYOUT)/tec1.lh $(MESS_DRIVERS)/tecnbras.o: $(MESS_LAYOUT)/tecnbras.lh $(MESS_DRIVERS)/ti74.o: $(MESS_LAYOUT)/ti74.lh \