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Diffstat (limited to 'src/mess/drivers/hh_ucom4.c')
-rw-r--r--src/mess/drivers/hh_ucom4.c226
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diff --git a/src/mess/drivers/hh_ucom4.c b/src/mess/drivers/hh_ucom4.c
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+++ b/src/mess/drivers/hh_ucom4.c
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+// license:BSD-3-Clause
+// copyright-holders:hap
+/***************************************************************************
+
+ NEC uCOM4 MCU handhelds
+
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/ucom4/ucom4.h"
+#include "sound/speaker.h"
+
+#include "tmpacman.lh"
+
+
+class hh_ucom4_state : public driver_device
+{
+public:
+ hh_ucom4_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_inp_matrix(*this, "IN"),
+ m_speaker(*this, "speaker"),
+ m_display_wait(33),
+ m_display_maxy(1),
+ m_display_maxx(0)
+ { }
+
+ // devices
+ required_device<cpu_device> m_maincpu;
+ optional_ioport_array<4> m_inp_matrix; // max 4
+ optional_device<speaker_sound_device> m_speaker;
+
+ // misc common
+ UINT16 m_inp_mux;
+
+ virtual void machine_start();
+ virtual void machine_reset();
+
+ // display common
+ int m_display_wait;
+ int m_display_maxy;
+ int m_display_maxx;
+
+ UINT32 m_grid;
+ UINT32 m_plate;
+
+ UINT32 m_display_state[0x20];
+ UINT32 m_display_cache[0x20];
+ UINT8 m_display_decay[0x20][0x20];
+ UINT16 m_7seg_mask[0x20];
+
+ TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);
+ void display_update();
+
+ // game-specific handlers
+
+};
+
+
+void hh_ucom4_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));
+ memset(m_7seg_mask, 0, sizeof(m_7seg_mask));
+
+ m_inp_mux = 0;
+ m_grid = 0;
+ m_plate = 0;
+
+ // register for savestates
+ save_item(NAME(m_display_maxy));
+ save_item(NAME(m_display_maxx));
+ save_item(NAME(m_display_wait));
+
+ save_item(NAME(m_display_state));
+ save_item(NAME(m_display_cache));
+ save_item(NAME(m_display_decay));
+ save_item(NAME(m_7seg_mask));
+
+ save_item(NAME(m_inp_mux));
+ save_item(NAME(m_grid));
+ save_item(NAME(m_plate));
+}
+
+
+void hh_ucom4_state::machine_reset()
+{
+}
+
+/***************************************************************************
+
+ Helper Functions
+
+***************************************************************************/
+
+// LED segments
+#if 0
+enum
+{
+ lA = 0x01,
+ lB = 0x02,
+ lC = 0x04,
+ lD = 0x08,
+ lE = 0x10,
+ lF = 0x20,
+ lG = 0x40,
+ lDP = 0x80
+};
+#endif
+
+// The device strobes the outputs very fast, it is unnoticeable to the user.
+// To prevent flickering here, we need to simulate a decay.
+
+
+void hh_ucom4_state::display_update()
+{
+ UINT32 active_state[0x20];
+
+ for (int y = 0; y < m_display_maxy; y++)
+ {
+ active_state[y] = 0;
+
+ for (int x = 0; x < m_display_maxx; x++)
+ {
+ // turn on powered segments
+ if (m_display_state[y] >> x & 1)
+ m_display_decay[y][x] = m_display_wait;
+
+ // determine active state
+ int ds = (m_display_decay[y][x] != 0) ? 1 : 0;
+ active_state[y] |= (ds << x);
+ }
+ }
+
+ // on difference, send to output
+ for (int y = 0; y < m_display_maxy; y++)
+ if (m_display_cache[y] != active_state[y])
+ {
+ if (m_7seg_mask[y] != 0)
+ output_set_digit_value(y, active_state[y] & m_7seg_mask[y]);
+
+ const int mul = (m_display_maxx <= 10) ? 10 : 100;
+ for (int x = 0; x < m_display_maxx; x++)
+ output_set_lamp_value(y * mul + x, active_state[y] >> x & 1);
+ }
+
+ memcpy(m_display_cache, active_state, sizeof(m_display_cache));
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(hh_ucom4_state::display_decay_tick)
+{
+ // slowly turn off unpowered segments
+ for (int y = 0; y < m_display_maxy; y++)
+ for (int x = 0; x < m_display_maxx; x++)
+ if (!(m_display_state[y] >> x & 1) && m_display_decay[y][x] != 0)
+ m_display_decay[y][x]--;
+
+ display_update();
+}
+
+
+
+/***************************************************************************
+
+ Minidrivers (I/O, Inputs, Machine Config)
+
+***************************************************************************/
+
+/***************************************************************************
+
+ Tomytronic Pac-Man (manufactured in Japan)
+ * boards are labeled TN-08 2E108E01
+ * NEC uCOM-43 MCU, labeled D553C 160
+ * cyan/red/green VFD display NEC FIP8AM18T
+ * bright yellow round casing
+
+ known releases:
+ - Japan: Puck Man
+ - USA: Pac Man
+ - UK: Puckman (Tomy), and also as Munchman, published by Grandstand
+ - Australia: Pac Man-1, published by Futuretronics
+
+***************************************************************************/
+
+static INPUT_PORTS_START( tmpacman )
+INPUT_PORTS_END
+
+
+static MACHINE_CONFIG_START( tmpacman, hh_ucom4_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", NEC_D553, XTAL_430kHz)
+
+ MCFG_DEFAULT_LAYOUT(layout_tmpacman)
+
+ /* 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( tmpacman )
+ ROM_REGION( 0x0800, "maincpu", 0 )
+ ROM_LOAD( "d553c-160", 0x0000, 0x0800, CRC(b21a8af7) SHA1(e3122be1873ce76a4067386bf250802776f0c2f9) )
+ROM_END
+
+
+CONS( 1981, tmpacman, 0, 0, tmpacman, tmpacman, driver_device, 0, "Tomy", "Pac Man (Tomy)", GAME_SUPPORTS_SAVE | GAME_REQUIRES_ARTWORK | GAME_NOT_WORKING )