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author hap <happppp@users.noreply.github.com>2021-03-07 21:19:22 +0100
committer hap <happppp@users.noreply.github.com>2021-03-07 21:19:38 +0100
commit1cd8e0df4461b167c08c0866164727be1a467bd7 (patch)
tree8827d92b10a6c3fbe3465b0f98c5cbdf255ddf3a
parent3fe689f03fddb5b921bbec5e631cb3e1ead8f232 (diff)
New working machines
-------------------- Memoquiz [hap, Sean Riddle]
-rw-r--r--src/devices/cpu/pps41/mm75.h5
-rw-r--r--src/devices/cpu/pps41/mm75op.cpp28
-rw-r--r--src/devices/cpu/pps41/mm76.cpp3
-rw-r--r--src/devices/cpu/pps41/mm76op.cpp12
-rw-r--r--src/devices/cpu/pps41/pps41base.cpp41
-rw-r--r--src/devices/cpu/pps41/pps41base.h14
-rw-r--r--src/mame/drivers/hh_pps41.cpp161
-rw-r--r--src/mame/layout/mastmind.lay61
-rw-r--r--src/mame/layout/memoquiz.lay55
-rw-r--r--src/mame/mame.lst1
10 files changed, 349 insertions, 32 deletions
diff --git a/src/devices/cpu/pps41/mm75.h b/src/devices/cpu/pps41/mm75.h
index 5dd036a1086..39a14245cae 100644
--- a/src/devices/cpu/pps41/mm75.h
+++ b/src/devices/cpu/pps41/mm75.h
@@ -43,8 +43,11 @@ protected:
virtual void device_start() override;
// opcode handlers
- virtual void op_ibm() override;
virtual void op_ios() override;
+ virtual void op_i2c() override;
+
+ virtual void op_ibm() override;
+ virtual void op_int1h() override;
};
diff --git a/src/devices/cpu/pps41/mm75op.cpp b/src/devices/cpu/pps41/mm75op.cpp
index 3f0769ebc8f..93e61af3ae9 100644
--- a/src/devices/cpu/pps41/mm75op.cpp
+++ b/src/devices/cpu/pps41/mm75op.cpp
@@ -9,14 +9,34 @@
// opcodes (differences with mm76_device)
-void mm75_device::op_ibm()
+// unsupported opcodes
+
+void mm75_device::op_ios()
{
- // IBM: does not PI5-8 pins
+ // IOS: does not have serial I/O
op_illegal();
}
-void mm75_device::op_ios()
+void mm75_device::op_i2c()
{
- // IOS: does not have serial I/O
+ // I2C: does not PI5-8 pins
+ m_a = 0;
op_illegal();
}
+
+
+// slightly different opcodes
+
+void mm75_device::op_ibm()
+{
+ // IBM: INT1 is shared with RIO8
+ mm76_device::op_ibm();
+ m_a &= ~(m_int_line[1] << 3);
+}
+
+void mm75_device::op_int1h()
+{
+ // INT1H: INT1 is shared with RIO8
+ int state = (m_read_r() & m_r_output) >> 7 & m_int_line[1];
+ m_skip = bool(state);
+}
diff --git a/src/devices/cpu/pps41/mm76.cpp b/src/devices/cpu/pps41/mm76.cpp
index 38ce96ea67a..5ebda16f281 100644
--- a/src/devices/cpu/pps41/mm76.cpp
+++ b/src/devices/cpu/pps41/mm76.cpp
@@ -12,7 +12,7 @@
#include "pps41d.h"
-DEFINE_DEVICE_TYPE(MM76, mm76_device, "mm76", "Rockwell MM76") // 640 bytes ROM, 48 bytes RAM
+DEFINE_DEVICE_TYPE(MM76, mm76_device, "mm76", "Rockwell MM76") // 640 bytes ROM, 48 nibbles RAM
DEFINE_DEVICE_TYPE(MM76L, mm76l_device, "mm76l", "Rockwell MM76L") // low-power
DEFINE_DEVICE_TYPE(MM76E, mm76e_device, "mm76e", "Rockwell MM76E") // ROM extended to 1KB
DEFINE_DEVICE_TYPE(MM76EL, mm76el_device, "mm76el", "Rockwell MM76EL") // low-power
@@ -60,6 +60,7 @@ void mm76e_device::program_1k(address_map &map)
void mm76_device::data_48x4(address_map &map)
{
map(0x00, 0x2f).ram();
+ map(0x30, 0x3f).lr8(NAME([]() { return 0xf; })).nopw();
}
diff --git a/src/devices/cpu/pps41/mm76op.cpp b/src/devices/cpu/pps41/mm76op.cpp
index eb0537cb78e..0b50cfeb9dc 100644
--- a/src/devices/cpu/pps41/mm76op.cpp
+++ b/src/devices/cpu/pps41/mm76op.cpp
@@ -428,25 +428,27 @@ void mm76_device::op_i2c()
void mm76_device::op_int1h()
{
// INT1H: skip on INT1
- op_todo();
+ m_skip = bool(m_int_line[1]);
}
void mm76_device::op_din1()
{
// DIN1: test INT1 flip-flop
- op_todo();
+ m_skip = !m_int_ff[1];
+ m_int_ff[1] = 1;
}
void mm76_device::op_int0l()
{
- // INT1H: skip on INT0
- op_todo();
+ // INT0L: skip on INT0
+ m_skip = !m_int_line[0];
}
void mm76_device::op_din0()
{
// DIN0: test INT0 flip-flop
- op_todo();
+ m_skip = !m_int_ff[0];
+ m_int_ff[0] = 1;
}
void mm76_device::op_seg1()
diff --git a/src/devices/cpu/pps41/pps41base.cpp b/src/devices/cpu/pps41/pps41base.cpp
index d0d99dc960d..e28b99ff1ab 100644
--- a/src/devices/cpu/pps41/pps41base.cpp
+++ b/src/devices/cpu/pps41/pps41base.cpp
@@ -38,8 +38,8 @@ TODO:
but again does not explain why
- documentation is conflicting whether or not MM76/MM75 can (re)set interrupt flip-
flops with SOS/ROS opcodes
+- add MCU mask options, there's one for inverting interrupts
- add serial i/o
-- add pseudo interrupts
- add MM78
*/
@@ -88,6 +88,10 @@ void pps41_base_device::device_start()
m_read_r.resolve_safe(0xff);
m_write_r.resolve_safe();
+ // init RAM with 0xf
+ for (int i = 0; i <= m_datamask; i++)
+ m_data->write_byte(i, 0xf);
+
// zerofill
m_pc = 0;
m_prev_pc = 0;
@@ -116,6 +120,8 @@ void pps41_base_device::device_start()
m_d_mask = (1 << m_d_pins) - 1;
m_d_output = 0;
m_r_output = 0;
+ m_int_line[0] = m_int_line[1] = 1;
+ m_int_ff[0] = m_int_ff[1] = 0;
// register for savestates
save_item(NAME(m_pc));
@@ -143,6 +149,8 @@ void pps41_base_device::device_start()
save_item(NAME(m_d_output));
save_item(NAME(m_r_output));
+ save_item(NAME(m_int_line));
+ save_item(NAME(m_int_ff));
// register state for debugger
state_add(STATE_GENPC, "GENPC", m_pc).formatstr("%03X").noshow();
@@ -184,6 +192,37 @@ void pps41_base_device::device_reset()
//-------------------------------------------------
+// inputline handling
+//-------------------------------------------------
+
+void pps41_base_device::execute_set_input(int line, int state)
+{
+ // negative voltage, Vdd=0, Vss(GND)=1
+ state = (state) ? 0 : 1;
+
+ switch (line)
+ {
+ case PPS41_INPUT_LINE_INT0:
+ // reset flip-flop on rising edge
+ if (state && !m_int_line[0])
+ m_int_ff[0] = 0;
+ m_int_line[0] = state;
+ break;
+
+ case PPS41_INPUT_LINE_INT1:
+ // reset flip-flop on falling edge
+ if (!state && m_int_line[1])
+ m_int_ff[1] = 0;
+ m_int_line[1] = state;
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+//-------------------------------------------------
// execute
//-------------------------------------------------
diff --git a/src/devices/cpu/pps41/pps41base.h b/src/devices/cpu/pps41/pps41base.h
index 0834a38fb96..24a35f56c32 100644
--- a/src/devices/cpu/pps41/pps41base.h
+++ b/src/devices/cpu/pps41/pps41base.h
@@ -13,6 +13,12 @@
#include "machine/pla.h"
+enum
+{
+ PPS41_INPUT_LINE_INT0 = 0,
+ PPS41_INPUT_LINE_INT1
+};
+
class pps41_base_device : public cpu_device
{
@@ -31,10 +37,6 @@ public:
auto read_r() { return m_read_r.bind(); }
auto write_r() { return m_write_r.bind(); }
- // set MCU mask options:
-
- //..
-
protected:
// construction/destruction
pps41_base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, int prgwidth, address_map_constructor program, int datawidth, address_map_constructor data);
@@ -46,6 +48,8 @@ protected:
// device_execute_interface overrides
virtual u32 execute_min_cycles() const noexcept override { return 1; }
virtual u32 execute_max_cycles() const noexcept override { return 2; }
+ virtual u32 execute_input_lines() const noexcept override { return 2; }
+ virtual void execute_set_input(int line, int state) override;
virtual void execute_run() override;
virtual void execute_one() = 0;
@@ -103,6 +107,8 @@ protected:
u16 m_d_mask;
u16 m_d_output;
u8 m_r_output;
+ int m_int_line[2];
+ int m_int_ff[2];
// misc handlers
virtual bool op_is_tr(u8 op) = 0;
diff --git a/src/mame/drivers/hh_pps41.cpp b/src/mame/drivers/hh_pps41.cpp
index 85ff6ccaf5f..34c943a8aa7 100644
--- a/src/mame/drivers/hh_pps41.cpp
+++ b/src/mame/drivers/hh_pps41.cpp
@@ -16,6 +16,7 @@
// internal artwork
#include "mastmind.lh"
+#include "memoquiz.lh"
//#include "hh_pps41_test.lh" // common test-layout - use external artwork
@@ -35,7 +36,7 @@ public:
required_device<pps41_base_device> m_maincpu;
optional_device<pwm_display_device> m_display;
optional_device<speaker_sound_device> m_speaker;
- optional_ioport_array<4> m_inputs; // max 4
+ optional_ioport_array<5> m_inputs; // max 5
u16 m_inp_mux = 0;
@@ -105,6 +106,7 @@ namespace {
Invicta is the owner of the Mastermind game rights. The back of the unit
says (C) 1977, but this electronic handheld version came out in 1979.
+ Or maybe there's an older revision.
***************************************************************************/
@@ -154,7 +156,7 @@ u8 mastmind_state::read_p()
static INPUT_PORTS_START( mastmind )
PORT_START("IN.0") // DIO0
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_T) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_NAME("Try")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_NAME("Try")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_F) PORT_NAME("Fail")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED ) // display test?
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )
@@ -163,7 +165,7 @@ static INPUT_PORTS_START( mastmind )
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("8")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("9")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_S) PORT_NAME("Set")
- PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_C) PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Clear")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Clear")
PORT_START("IN.2") // DIO2
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("4")
@@ -187,8 +189,8 @@ void mastmind_state::mastmind(machine_config &config)
m_maincpu->read_p().set(FUNC(mastmind_state::read_p));
/* video hardware */
- PWM_DISPLAY(config, m_display).set_size(7, 7);
- m_display->set_segmask(0x7f, 0x7f);
+ PWM_DISPLAY(config, m_display).set_size(8, 7);
+ m_display->set_segmask(0xff, 0x7f);
config.set_default_layout(layout_mastmind);
/* no sound! */
@@ -207,6 +209,153 @@ ROM_END
+
+
+/***************************************************************************
+
+ M.E.M. Belgium Memoquiz
+ * PCB label: MEMOQUIZ MO3
+ * MM75 MCU (label M7505 A7505-12, die label A7505)
+ * 9-digit 7seg VFD display, no sound
+
+ It's a Mastermind game, not as straightforward as Invicta's version.
+ To start, press the "?" button to generate a new code, then try to guess it,
+ confirming with the "=" button. CD reveals the answer, PE is for player entry.
+
+ known releases:
+ - Europe: Memoquiz
+ - UK: Memoquiz, published by Polymark
+ - USA: Mind Boggler (model 2626), published by Mattel
+
+***************************************************************************/
+
+class memoquiz_state : public hh_pps41_state
+{
+public:
+ memoquiz_state(const machine_config &mconfig, device_type type, const char *tag) :
+ hh_pps41_state(mconfig, type, tag)
+ { }
+
+ DECLARE_INPUT_CHANGED_MEMBER(digits_switch) { set_digits(); }
+ void set_digits();
+
+ void update_display();
+ void write_d(u16 data);
+ void write_r(u8 data);
+ u8 read_p();
+ void memoquiz(machine_config &config);
+
+protected:
+ virtual void machine_reset() override;
+};
+
+void memoquiz_state::machine_reset()
+{
+ hh_pps41_state::machine_reset();
+ set_digits();
+}
+
+// handlers
+
+void memoquiz_state::set_digits()
+{
+ // digits switch is tied to MCU interrupt pins
+ u8 inp = m_inputs[4]->read();
+ m_maincpu->set_input_line(0, (inp & 1) ? ASSERT_LINE : CLEAR_LINE);
+ m_maincpu->set_input_line(1, (inp & 2) ? CLEAR_LINE : ASSERT_LINE);
+}
+
+void memoquiz_state::update_display()
+{
+ m_display->matrix(m_inp_mux, (m_inp_mux << 2 & 0x80) | (~m_r & 0x7f));
+}
+
+void memoquiz_state::write_d(u16 data)
+{
+ // DIO0-DIO7: digit select, DIO5 is also DP segment
+ // DIO0-DIO3: input mux
+ m_inp_mux = data;
+ update_display();
+
+ // DIO08: N/C, looks like they planned to add sound, but didn't
+}
+
+void memoquiz_state::write_r(u8 data)
+{
+ // RIO1-RIO7: digit segment data
+ m_r = data;
+ update_display();
+}
+
+u8 memoquiz_state::read_p()
+{
+ // PI1-PI4: multiplexed inputs
+ return ~read_inputs(4);
+}
+
+// config
+
+static INPUT_PORTS_START( memoquiz )
+ PORT_START("IN.0") // DIO0
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("3")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("2")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("1")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_NAME("0")
+
+ PORT_START("IN.1") // DIO1
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("7")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("6")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("5")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("4")
+
+ PORT_START("IN.2") // DIO2
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_A) PORT_NAME("AC")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("CE")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("9")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("8")
+
+ PORT_START("IN.3") // DIO3
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_NAME("=")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_SLASH) PORT_NAME("?")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_E) PORT_NAME("PE")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_C) PORT_NAME("CD")
+
+ PORT_START("IN.4")
+ PORT_CONFNAME( 0x03, 0x01, "Digits" ) PORT_CHANGED_MEMBER(DEVICE_SELF, memoquiz_state, digits_switch, 0)
+ PORT_CONFSETTING( 0x01, "3" ) // INT0, Vdd when closed, pulled to GND when open
+ PORT_CONFSETTING( 0x02, "4" ) // INT1, GND when closed, pulled to Vdd when open
+ PORT_CONFSETTING( 0x00, "5" )
+INPUT_PORTS_END
+
+void memoquiz_state::memoquiz(machine_config &config)
+{
+ /* basic machine hardware */
+ MM75(config, m_maincpu, 100000); // approximation
+ m_maincpu->write_d().set(FUNC(memoquiz_state::write_d));
+ m_maincpu->write_r().set(FUNC(memoquiz_state::write_r));
+ m_maincpu->read_p().set(FUNC(memoquiz_state::read_p));
+
+ /* video hardware */
+ PWM_DISPLAY(config, m_display).set_size(8, 8);
+ m_display->set_segmask(0xff, 0xff);
+ config.set_default_layout(layout_memoquiz);
+
+ /* no sound! */
+}
+
+// roms
+
+ROM_START( memoquiz )
+ ROM_REGION( 0x0400, "maincpu", ROMREGION_ERASE00 )
+ ROM_LOAD( "m7505_a7505-12", 0x0000, 0x0200, CRC(47223508) SHA1(97b62e0c453ae2e65d48e039ad65857dae2d4d76) )
+ ROM_CONTINUE( 0x0380, 0x0080 )
+
+ ROM_REGION( 314, "maincpu:opla", 0 )
+ ROM_LOAD( "mm76_memoquiz_output.pla", 0, 314, CRC(a5799b50) SHA1(9b4923b37c9ba8221ecece5a3370c605a880a453) )
+ROM_END
+
+
+
} // anonymous namespace
/***************************************************************************
@@ -217,3 +366,5 @@ ROM_END
// YEAR NAME PARENT CMP MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS
CONS( 1979, mastmind, 0, 0, mastmind, mastmind, mastmind_state, empty_init, "Invicta Plastics", "Electronic Master Mind (Invicta)", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW )
+
+CONS( 1978, memoquiz, 0, 0, memoquiz, memoquiz, memoquiz_state, empty_init, "M.E.M. Belgium", "Memoquiz", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW )
diff --git a/src/mame/layout/mastmind.lay b/src/mame/layout/mastmind.lay
index 507bfc93422..78b6f9719d1 100644
--- a/src/mame/layout/mastmind.lay
+++ b/src/mame/layout/mastmind.lay
@@ -4,21 +4,60 @@ license:CC0
-->
<mamelayout version="2">
+<!-- define elements -->
+
+ <element name="mul"><rect><color red="0.5" green="0.4" blue="0.05" /></rect></element>
+
+ <element name="text_1"><text string="1"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_2"><text string="2"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_3"><text string="3"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_4"><text string="4"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_5"><text string="5"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_x"><text string="X"><color red="1" green="1" blue="1" /></text></element>
+
+ <element name="text_v">
+ <text string="V">
+ <bounds x="0" y="0" width="1" height="1" />
+ <color red="1" green="1" blue="1" />
+ </text>
+ <disk>
+ <bounds x="0" y="0" width="0.5" height="0.5" />
+ <color red="0" green="0" blue="0" />
+ </disk>
+ </element>
+
<element name="digit" defstate="0">
<led7seg><color red="0.2" green="1.0" blue="0.85" /></led7seg>
</element>
+
+<!-- build screen -->
+
<view name="Internal Layout">
- <bounds left="0" right="90" top="0" bottom="15" />
-
- <element name="digit7" ref="digit"><bounds x="0" y="0" width="10" height="15" /></element> <!-- N/C on mastmind -->
- <element name="digit0" ref="digit"><bounds x="10" y="0" width="10" height="15" /></element>
- <element name="digit1" ref="digit"><bounds x="20" y="0" width="10" height="15" /></element>
- <element name="digit2" ref="digit"><bounds x="30" y="0" width="10" height="15" /></element>
- <element name="digit3" ref="digit"><bounds x="40" y="0" width="10" height="15" /></element>
- <element name="digit4" ref="digit"><bounds x="50" y="0" width="10" height="15" /></element>
- <element ref="digit"><bounds x="60" y="0" width="10" height="15" /></element> <!-- N/C -->
- <element name="digit5" ref="digit"><bounds x="70" y="0" width="10" height="15" /></element>
- <element name="digit6" ref="digit"><bounds x="80" y="0" width="10" height="15" /></element>
+
+ <!-- labels (actually, it looks like some units didn't have them) -->
+ <collection name="Labels">
+ <element ref="text_1"><bounds x="20" y="0" width="10" height="10" /></element>
+ <element ref="text_2"><bounds x="30" y="0" width="10" height="10" /></element>
+ <element ref="text_3"><bounds x="40" y="0" width="10" height="10" /></element>
+ <element ref="text_4"><bounds x="50" y="0" width="10" height="10" /></element>
+ <element ref="text_5"><bounds x="60" y="0" width="10" height="10" /></element>
+ <element ref="text_v"><bounds x="80" y="0" width="10" height="10" /></element>
+ <element ref="text_x"><bounds x="90" y="0" width="10" height="10" /></element>
+
+ <element ref="mul" blend="multiply"><bounds x="8" y="0" width="94" height="28" /></element>
+ </collection>
+
+ <!-- display -->
+ <element ref="digit"><bounds x="10" y="10" width="10" height="15" /></element> <!-- N/C -->
+ <element name="digit0" ref="digit"><bounds x="20" y="10" width="10" height="15" /></element>
+ <element name="digit1" ref="digit"><bounds x="30" y="10" width="10" height="15" /></element>
+ <element name="digit2" ref="digit"><bounds x="40" y="10" width="10" height="15" /></element>
+ <element name="digit3" ref="digit"><bounds x="50" y="10" width="10" height="15" /></element>
+ <element name="digit4" ref="digit"><bounds x="60" y="10" width="10" height="15" /></element>
+ <element ref="digit"><bounds x="70" y="10" width="10" height="15" /></element> <!-- N/C -->
+ <element name="digit5" ref="digit"><bounds x="80" y="10" width="10" height="15" /></element>
+ <element name="digit6" ref="digit"><bounds x="90" y="10" width="10" height="15" /></element>
+
</view>
</mamelayout>
diff --git a/src/mame/layout/memoquiz.lay b/src/mame/layout/memoquiz.lay
new file mode 100644
index 00000000000..82a27da4c70
--- /dev/null
+++ b/src/mame/layout/memoquiz.lay
@@ -0,0 +1,55 @@
+<?xml version="1.0"?>
+<!--
+license:CC0
+-->
+<mamelayout version="2">
+
+<!-- define elements -->
+
+ <element name="mul"><rect><color red="0.8" green="0.8" blue="0.8" /></rect></element>
+
+ <element name="text_l1"><text string="cd"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l2"><text string="1"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l3"><text string="2"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l4"><text string="3"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l5"><text string="4"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l6"><text string="5"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l7"><text string="h"><color red="1" green="1" blue="1" /></text></element>
+ <element name="text_l8"><text string="s"><color red="1" green="1" blue="1" /></text></element>
+
+ <element name="digit" defstate="0">
+ <led7seg><color red="0.2" green="1.0" blue="0.85" /></led7seg>
+ </element>
+
+
+<!-- build screen -->
+
+ <view name="Internal Layout">
+
+ <!-- labels -->
+ <collection name="Labels">
+ <element ref="text_l1"><bounds x="10" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l2"><bounds x="20" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l3"><bounds x="30" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l4"><bounds x="40" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l5"><bounds x="50" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l6"><bounds x="60" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l7"><bounds x="80" y="26" width="10" height="7.5" /></element>
+ <element ref="text_l8"><bounds x="90" y="26" width="10" height="7.5" /></element>
+
+ <element ref="mul" blend="multiply"><bounds x="8" y="7" width="94" height="28" /></element>
+ </collection>
+
+ <!-- display -->
+ <element name="digit5" ref="digit"><bounds x="10" y="10" width="10" height="15" /></element>
+ <element name="digit0" ref="digit"><bounds x="20" y="10" width="10" height="15" /></element>
+ <element name="digit1" ref="digit"><bounds x="30" y="10" width="10" height="15" /></element>
+ <element name="digit2" ref="digit"><bounds x="40" y="10" width="10" height="15" /></element>
+ <element name="digit3" ref="digit"><bounds x="50" y="10" width="10" height="15" /></element>
+ <element name="digit4" ref="digit"><bounds x="60" y="10" width="10" height="15" /></element>
+ <element ref="digit"><bounds x="70" y="10" width="10" height="15" /></element> <!-- N/C -->
+ <element name="digit7" ref="digit"><bounds x="80" y="10" width="10" height="15" /></element>
+ <element name="digit6" ref="digit"><bounds x="90" y="10" width="10" height="15" /></element>
+
+ </view>
+</mamelayout>
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 37fc14acf4c..396087582f1 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -16173,6 +16173,7 @@ uspbball // US Games
@source:hh_pps41.cpp
mastmind // Invicta
+memoquiz // MEM
@source:hh_sm510.cpp
auslalom // Elektronika