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hap
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// license:BSD-3-Clause
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// copyright-holders:hap
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/***************************************************************************
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Parker Brothers Stop Thief, by Bob Doyle
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* TMS0980NLL MP6101B (die labeled 0980B-01A)
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Stop Thief is actually a board game, the electronic device emulated here
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(called Electronic Crime Scanner) is an accessory. To start a game, press
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the ON button. Otherwise, it is in test-mode where you can hear all sounds.
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TODO:
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- MCU clock is unknown
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- stopthiep: unable to start a game (may be intentional?)
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***************************************************************************/
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#include "emu.h"
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#include "cpu/tms0980/tms0980.h"
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#include "sound/speaker.h"
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#include "stopthie.lh"
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// master clock is unknown, the value below is an approximation
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#define MASTER_CLOCK (425000)
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class stopthief_state : public driver_device
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{
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public:
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stopthief_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_button_matrix(*this, "IN"),
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m_speaker(*this, "speaker")
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{ }
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required_device<cpu_device> m_maincpu;
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required_ioport_array<3> m_button_matrix;
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required_device<speaker_sound_device> m_speaker;
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UINT16 m_o;
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bool m_power_on;
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UINT16 m_display_state[0x10];
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UINT16 m_display_cache[0x10];
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UINT8 m_display_decay[0x100];
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DECLARE_READ8_MEMBER(read_k);
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DECLARE_WRITE16_MEMBER(write_o);
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DECLARE_WRITE16_MEMBER(write_r);
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DECLARE_INPUT_CHANGED_MEMBER(power_button);
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DECLARE_WRITE_LINE_MEMBER(auto_power_off);
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TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);
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void display_update();
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virtual void machine_reset();
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virtual void machine_start();
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};
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/***************************************************************************
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LED Display
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***************************************************************************/
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// The device strobes the outputs very fast, it is unnoticeable to the user.
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// To prevent flickering here, we need to simulate a decay.
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// decay time, in steps of 1ms
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#define DISPLAY_DECAY_TIME 40
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void stopthief_state::display_update()
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{
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UINT16 active_state[0x10];
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for (int i = 0; i < 0x10; i++)
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{
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active_state[i] = 0;
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for (int j = 0; j < 0x10; j++)
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{
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int di = j << 4 | i;
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// turn on powered segments
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if (m_power_on && m_display_state[i] >> j & 1)
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m_display_decay[di] = DISPLAY_DECAY_TIME;
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// determine active state
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int ds = (m_display_decay[di] != 0) ? 1 : 0;
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active_state[i] |= (ds << j);
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}
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}
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// on difference, send to output
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for (int i = 0; i < 0x10; i++)
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if (m_display_cache[i] != active_state[i])
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output_set_digit_value(i, active_state[i]);
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memcpy(m_display_cache, active_state, sizeof(m_display_cache));
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}
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TIMER_DEVICE_CALLBACK_MEMBER(stopthief_state::display_decay_tick)
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{
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// slowly turn off unpowered segments
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for (int i = 0; i < 0x100; i++)
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if (!(m_display_state[i & 0xf] >> (i>>4) & 1) && m_display_decay[i])
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m_display_decay[i]--;
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display_update();
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}
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/***************************************************************************
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I/O
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***************************************************************************/
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READ8_MEMBER(stopthief_state::read_k)
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{
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// the Vss row is always on
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UINT8 k = m_button_matrix[2]->read();
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// read selected button rows
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for (int i = 0; i < 2; i++)
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{
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const int ki[2] = { 0, 6 };
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if (m_o >> ki[i] & 1)
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k |= m_button_matrix[i]->read();
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}
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return k;
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}
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WRITE16_MEMBER(stopthief_state::write_r)
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{
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// R0-R2: select digit
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UINT8 o = BITSWAP8(m_o,3,5,2,1,4,0,6,7) & 0x7f;
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for (int i = 0; i < 3; i++)
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m_display_state[i] = (data >> i & 1) ? o : 0;
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display_update();
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// R3-R8: speaker on
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m_speaker->level_w((data & 0x1f8 && m_o & 8) ? 1 : 0);
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}
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WRITE16_MEMBER(stopthief_state::write_o)
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{
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// O0,O6: input mux
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// O3: speaker out
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// O0-O2,O4-O7: led segments A-G
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m_o = data;
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}
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/***************************************************************************
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Inputs
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***************************************************************************/
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INPUT_CHANGED_MEMBER(stopthief_state::power_button)
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{
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m_power_on = (bool)(FPTR)param;
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m_maincpu->set_input_line(INPUT_LINE_RESET, m_power_on ? CLEAR_LINE : ASSERT_LINE);
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}
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/* physical button layout and labels is like this:
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[1] [2] [OFF]
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[3] [4] [ON]
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[5] [6] [T, TIP]
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[7] [8] [A, ARREST]
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[9] [0] [C, CLUE]
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*/
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static INPUT_PORTS_START( stopthief )
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PORT_START("IN.0") // O0
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("4")
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("6")
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PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("8")
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PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_NAME("0")
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PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("2")
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PORT_START("IN.1") // O6
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("3")
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("5")
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PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("7")
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PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("9")
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PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("1")
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// note: even though power buttons are on the matrix, they are not CPU-controlled
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PORT_START("IN.2") // Vss!
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_PGUP) PORT_NAME("On") PORT_CHANGED_MEMBER(DEVICE_SELF, stopthief_state, power_button, (void *)true)
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_T) PORT_NAME("Tip")
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PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_A) PORT_NAME("Arrest")
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PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_C) PORT_NAME("Clue")
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PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_PGDN) PORT_NAME("Off") PORT_CHANGED_MEMBER(DEVICE_SELF, stopthief_state, power_button, (void *)false)
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INPUT_PORTS_END
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/***************************************************************************
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Machine Config
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***************************************************************************/
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WRITE_LINE_MEMBER(stopthief_state::auto_power_off)
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{
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// TMS0980 auto power-off opcode
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if (state)
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{
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m_power_on = false;
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m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
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}
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}
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void stopthief_state::machine_reset()
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{
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m_power_on = true;
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}
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void stopthief_state::machine_start()
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{
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// zerofill
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memset(m_display_state, 0, sizeof(m_display_state));
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memset(m_display_cache, 0, sizeof(m_display_cache));
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memset(m_display_decay, 0, sizeof(m_display_decay));
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m_o = 0;
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m_power_on = false;
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// register for savestates
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save_item(NAME(m_display_state));
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save_item(NAME(m_display_cache));
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save_item(NAME(m_display_decay));
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save_item(NAME(m_o));
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save_item(NAME(m_power_on));
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}
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static MACHINE_CONFIG_START( stopthief, stopthief_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", TMS0980, MASTER_CLOCK)
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MCFG_TMS1XXX_READ_K_CB(READ8(stopthief_state, read_k))
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MCFG_TMS1XXX_WRITE_O_CB(WRITE16(stopthief_state, write_o))
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MCFG_TMS1XXX_WRITE_R_CB(WRITE16(stopthief_state, write_r))
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MCFG_TMS1XXX_POWER_OFF_CB(WRITELINE(stopthief_state, auto_power_off))
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MCFG_TIMER_DRIVER_ADD_PERIODIC("display_decay", stopthief_state, display_decay_tick, attotime::from_msec(1))
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MCFG_DEFAULT_LAYOUT(layout_stopthie)
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/* no video! */
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/* sound hardware */
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MCFG_SPEAKER_STANDARD_MONO("mono")
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MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
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MACHINE_CONFIG_END
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/***************************************************************************
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Game driver(s)
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***************************************************************************/
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ROM_START( stopthie )
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ROM_REGION( 0x1000, "maincpu", 0 )
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ROM_LOAD( "tms0980nll_mp6101b", 0x0000, 0x1000, CRC(8bde5bb4) SHA1(8c318fcce67acc24c7ae361f575f28ec6f94665a) )
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ROM_REGION( 1246, "maincpu:ipla", 0 )
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ROM_LOAD( "tms0980_default_ipla.pla", 0, 1246, CRC(42db9a38) SHA1(2d127d98028ec8ec6ea10c179c25e447b14ba4d0) )
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ROM_REGION( 1982, "maincpu:mpla", 0 )
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ROM_LOAD( "tms0980_default_mpla.pla", 0, 1982, CRC(3709014f) SHA1(d28ee59ded7f3b9dc3f0594a32a98391b6e9c961) )
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ROM_REGION( 352, "maincpu:opla", 0 )
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ROM_LOAD( "tms0980_stopthie_opla.pla", 0, 352, CRC(50337a48) SHA1(4a9ea62ed797a9ac5190eec3bb6ebebb7814628c) )
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ROM_REGION( 157, "maincpu:spla", 0 )
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ROM_LOAD( "tms0980_stopthie_spla.pla", 0, 157, CRC(399aa481) SHA1(72c56c58fde3fbb657d69647a9543b5f8fc74279) )
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ROM_END
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ROM_START( stopthiep )
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ROM_REGION( 0x1000, "maincpu", 0 )
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ROM_LOAD16_WORD( "us4341385", 0x0000, 0x1000, CRC(07aec38a) SHA1(0a3d0956495c0d6d9ea771feae6c14a473a800dc) ) // from patent US4341385, data should be correct (it included checksums)
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ROM_REGION( 1246, "maincpu:ipla", 0 )
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ROM_LOAD( "tms0980_default_ipla.pla", 0, 1246, CRC(42db9a38) SHA1(2d127d98028ec8ec6ea10c179c25e447b14ba4d0) )
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ROM_REGION( 1982, "maincpu:mpla", 0 )
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ROM_LOAD( "tms0980_default_mpla.pla", 0, 1982, CRC(3709014f) SHA1(d28ee59ded7f3b9dc3f0594a32a98391b6e9c961) )
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ROM_REGION( 352, "maincpu:opla", 0 )
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ROM_LOAD( "tms0980_stopthie_opla.pla", 0, 352, CRC(50337a48) SHA1(4a9ea62ed797a9ac5190eec3bb6ebebb7814628c) )
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ROM_REGION( 157, "maincpu:spla", 0 )
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ROM_LOAD( "tms0980_stopthie_spla.pla", 0, 157, CRC(399aa481) SHA1(72c56c58fde3fbb657d69647a9543b5f8fc74279) )
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ROM_END
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CONS( 1979, stopthie, 0, 0, stopthief, stopthief, driver_device, 0, "Parker Brothers", "Stop Thief (Electronic Crime Scanner)", GAME_SUPPORTS_SAVE )
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CONS( 1979, stopthiep, stopthie, 0, stopthief, stopthief, driver_device, 0, "Parker Brothers", "Stop Thief (Electronic Crime Scanner) (prototype)", GAME_SUPPORTS_SAVE | GAME_NOT_WORKING )
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