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|
// license:BSD-3-Clause
// copyright-holders:
/*
The CRT-300 is an extension of CRT-250/CRT-260 boards found in meritm.cpp.
Merit - Multi-Action 6710-13 Touchscreen game
MERIT CRT-300 REV A:
+------------------------------------------------------------+
| U45# HY6264ALP-10 10.000000MHz |
| |
| U46 HY6264ALP-10 |
| |
| U47 HD46505SP-2 +-|
| | |
| U48 ADV476KN35 | |
| | |
| PAL16l8ACN.U14 |J|
| |2|
|U7** PAL20L10NC.U8 | |
| | |
|DS1225Y.U6 PAL20L10NC.U1 PC16550DN | |
| | |
|U5* U20* DSW 1.84MHz +-|
| +-|
| YM2149F | |
| | |
| Z8400BB1-Z80B D8255AC-2 | |
| |J|
|10.000MHz DS1231-50 D8255AC-2 |1|
| | |
| | |
| | |
|VOLUME MB3731 | |
+----------------------------------------------------------+-+
CPU: Z80B 6MHz part Clocked @ 5MHz (10MHz/2)
Video: HD46505SP-2 CRT controller (enhanced) 2MHz AKA HD68B45SP compatible with MC68B45P
ADV476KN35 CMOS Monolithic 256x18 Color Palette RAM-DAC PS/2 & VGA compatible
Sound: AY8930
MB3731 18-Watt BTL Power Amplifier
RAM: 6264 8K High Speed CMOS Static RAM x 2
OSC: 10.00MHz x 2, 1.85MHz
DSW: 8 switch dipswitch block labeled S1
Other: PC16550DN UART with FIFO clocked @ 1.84MHz
D8255AC Programmable Peripheral Interface chip x 2
DS1225Y-200 Dallas 8Kx8 NVRAM @ U6
DS1231 Power Monitor Chip
* U5 is a 28pin female socket, U20 is 28pin male socket
** U7 is a stacked DS1216 Dallas 2Kx8 SmartWatch RTC + BENCHMARQ bq4010YMA-150 8Kx8 NVRAM
Connectors:
J1 80-pin connector to backplane & wire harness
J2 80-pin connector to backplane & wire harness
# Denotes unpopulated
ROMs on CRT-300 mainboard:
U-46
DC-350
U-47
DC-350
U-48
DC-350
CRT-307 rev A
+----------------+
| 28pinM 28pinF |
| U1 74LS541N |
| SW1 |
| U2 74LS00N |
+----------------+
Other: 8 switch dipswitch block labeled SW1
28pinM 28pin male socket to plug into U5
28pinF 28pin female socket to receive U20
ROMs on CRT-307 daughter board
U-1
DC-350
Ticket
U-2
DC-350
Ticket
Snooping around the U1 & U2 roms with a hex editor shows the game uses a Printer & Modem.
Game can be played in English or French
Games look to be basic Poker games, Blackjack & Super 8 Slots
Copyright is 1989
---------------------------------------------------------------------------------------------
The CRT-350 is an extension of CRT-300 that allows for memory (ROM) expansion.
Merit MULTI-ACTION 7551-21-R2P - Touchscreen game
MERIT CRT-350 REV C (and REV B):
+------------------------------------------------------------+
| U45* HY6264ALP-10 10.000000MHz |
| |
| U46 HY6264ALP-10 |
| |
| U47 HD46505SP-2 +-|
| | |
| U48 IMSG176P-40 | |
| | |
|U7* PAL16l8ACN.U14 |J|
| |2|
|U6* PAL20L10NC.U8 | |
| | |
|U5* PAL20L10NC.U4A PC16550DN | |
| | |
||===========J14==========| DSW 1.84MHz +-|
| +-|
| YM2149F | |
| | |
| Z0840006PSC-Z80B D8255AC-2 | |
| |J|
|10.000MHz DS1231-50 D8255AC-2 |1|
| | |
| | |
| | |
|VOLUME LM383T | |
+----------------------------------------------------------+-+
CPU: Z80B 6MHz part Clocked @ 5MHz (10MHz/2)
Video: HD46505SP-2 CRT controller (enhanced) 2MHz AKA HD68B45SP compatible with MC68B45P
inmos IMS G176 High performance CMOS color look-up table
Sound: Yamaha YM2149F or AY-3-8910A
LM383T 7-Watt Audio High Power Amplifier (rev C PCB only)
MB3731 18-Watt BTL Power Amplifier (rev B PCB only)
RAM: 6264 8K High Speed CMOS Static RAM x 2
OSC: 10.00MHz x 2, 1.85MHz
DSW: 8 switch dipswitch block labeled S1
Other: PC16550DN UART with FIFO clocked @ 1.84MHz
D8255AC Programmable Peripheral Interface chip x 2
DS1231 Power Monitor Chip
Connectors:
J1 80-pin connector to CRT-351 backplane & wire harness
J2 80-pin connector to CRT-351 backplane & wire harness
J14 64-pin connector for CRT-352 Expansion board (96 pins, but middle row pins removed)
* Denotes unpopulated
MEMORY EXPANSION BOARD CRT-352 rev A
+--------------------------+
| U11* U15 |
| |
| U10 U14 |
| |
| U9 U13 |
| |
| U8 U12 |
| |
| 74HC245 INS8250N |
| |
| DS1225Y.U7 PAL 1.84MHz |
| |
| DS1216.U18 GAL20XV10B |
| |
| DS1230Y.U17 |
| |
||===========J1===========||
| |
| 74HC541N DSW |
+--------------------------+
Other: DS1225Y-200 Dallas 8Kx8 NVRAM
DS1230Y-200 Dallas 32Kx8 NVRAM
DS1216 Dallas 2Kx8 SmartWatch RTC
PC16550DN UART with FIFO clocked @ 1.84MHz
8 switch dipswitch block labeled SW1 (enable/disable games)
Connectors:
J1 96-pin female receiver to connect to CRT-350 main board (64 pins used, middle row pins not connected)
* Denotes unpopulated
CRT-351
+----------------------------------------------------------------------------+
| |=J5==| |---------------------------J3-------------------------------||
| |===J6===| |=====J4=====||
| JPR3 |-J7-||
| |=============J2=============||=============J1===============||
+----------------------------------------------------------------------------+
J1 80-pin connector to J1 connector on the CRT-350 mainboard
J2 80-pin connector to J2 connector on the CRT-350 mainboard
J3 65-pin single row connector for wire harness
J4 40-pin dual row connector for printer
J5 16-pin dual row connector for unknown
J6 17-pin single row connector for unknown (some kind of jumper block)
J7 6-pin single row connector for hopper
JPR3 is a 3 pin jumper: Pins 1&2 = Printer, pins 2&3= Hopper
Main PCB graphics roms (on main board):
U46
NC $
U47
NC $
U48
NC $
Program ROMs on Expansion board:
U11 *Empty U15
7551-21-R2P
U10 U14
7551-21-R2P 7551-21-R2P
U9 U13
7551-21-R2P 7551-21-R2P
U8 U12
7551-21-R2P 7551-21-R2P
According to U14:
INVALID DIPSWITCH SETTING
ENABLE AT LEAST TWO GAMES
CS1-1 ON =JOKER POKER
CS1-2 ON =DEUCES
CS1-3 ON =FEVER POKER
CS1-4 ON =JACKS POKER
CS1-5 ON =BLACKJACK
CS1-6 ON =KENO WILD
CS1-7 ON =TBALL KENO
CS1-8 ON =BINGO
CSW1-1 ON =DOLR JACKS
CSW1-2 ON =DOLR DEUCE
CSW1-3 ON =5# KENO
CSW1-4 ON =ADDEM
Dipswitch on CRT-350 main is labeled S1
Dipswitch on CRT-352 MEM is labeled SW1
-------------------------------------------------------------
Merit MULTI-ACTION 7556-00-R2 - Touchscreen game
MERIT CRT-350 REV C (and REV B):
+------------------------------------------------------------+
| U45* HY6264ALP-10 10.000000MHz |
| |
| U46 HY6264ALP-10 |
| |
| U47 HD46505SP-2 +-|
| | |
| U48 IMSG176P-40 | |
| | |
|U7* PAL16l8ACN.U14 |J|
| |2|
|U6* PAL20L10NC.U8 | |
| | |
|U5* PAL20L10NC.U4A PC16550DN | |
| | |
||===========J14==========| DSW 1.84MHz +-|
| +-|
| YM2149F | |
| | |
| Z0840006PSC-Z80B D8255AC-2 | |
| |J|
|10.000MHz DS1231-50 D8255AC-2 |1|
| | |
| | |
| | |
|VOLUME LM383T | |
+----------------------------------------------------------+-+
CPU: Z80B 6MHz part Clocked @ 5MHz (10MHz/2)
Video: HD46505SP-2 CRT controller (enhanced) 2MHz AKA HD68B45SP compatible with MC68B45P
inmos IMS G176 High performance CMOS color look-up table compatible to
ADV476KN35 CMOS Monolithic 256x18 Color Palette RAM-DAC
Sound: Yamaha YM2149F or AY-3-8910A
LM383T 7-Watt Audio High Power Amplifier (rev C PCB only)
MB3731 18-Watt BTL Power Amplifier (rev B PCB only)
RAM: 6264 8K High Speed CMOS Static RAM x 2
OSC: 10.00MHz x 2, 1.85MHz
DSW: 8 switch dipswitch block labeled S1
Other: PC16550DN UART with FIFO clocked @ 1.84MHz
D8255AC Programmable Peripheral Interface chip x 2
DS1231 Power Monitor Chip
Connectors:
J1 80-pin connector to CRT-351 backplane & wire harness
J2 80-pin connector to CRT-351 backplane & wire harness
J14 64-pin connector for CRT-352 Expansion board (96 pins, but middle row pins removed)
* Denotes unpopulated
MEMORY EXPANSION BOARD CRT-352 rev A
+--------------------------+
| U11* U15 |
| |
| U10 U14 |
| |
| U9 U13 |
| |
| U8 U12 |
| |
| 74HC245 INS8250N |
| |
| DS1225Y.U7 PAL 1.84MHz |
| |
| DS1216.U18 GAL20XV10B |
| |
| DS1230Y.U17 |
| |
||===========J1===========||
| |
| 74HC541N DSW |
+--------------------------+
Other: DS1225Y-200 Dallas 8Kx8 NVRAM
DS1230Y-200 Dallas 32Kx8 NVRAM
DS1216 Dallas 2Kx8 SmartWatch RTC
PC16550DN UART with FIFO clocked @ 1.84MHz
8 switch dipswitch block labeled SW1 (enable/disable games)
NOTE: on this PCB pin28 on the DS1225Y was bent up so data was not correctly saved from PCB
on this PCB pin28 on the DS1130Y was broken so data was not correctly saved from PCB
Connectors:
J1 96-pin female receiver to connect to CRT-350 main board (64 pins used, middle row pins not connected)
* Denotes unpopulated
CRT-351
+----------------------------------------------------------------------------+
| |=J5==| |---------------------------J3-------------------------------||
| |===J6===| |=====J4=====||
| JPR3 |-J7-||
| |=============J2=============||=============J1===============||
+----------------------------------------------------------------------------+
J1 80-pin connector to J1 connector on the CRT-350 mainboard
J2 80-pin connector to J2 connector on the CRT-350 mainboard
J3 65-pin single row connector for wire harness
J4 40-pin dual row connector for printer
J5 16-pin dual row connector for unknown
J6 17-pin single row connector for unknown (some kind of jumper block)
J7 6-pin single row connector for hopper
JPR3 is a 3 pin jumper: Pins 1&2 = Printer, pins 2&3= Hopper
Main PCB graphics roms (on main board):
U46
MLT8
ck:8bbe
U47
MLT8
ck:0262
U48
MLT8
ck:9daa
NOTE: The above ROMs are also known to be labeled as Multi-Action 7556-WV U46 through Multi-Action 7556-WV U48
Program ROMs on Expansion board:
U11 *Empty U15
7556-01-r0
add3
U10 U14
7556-01-r0 7556-01-r0
ef8f dff2
U9 U13
7556-01-r0 7556-01-r0
ef1e 7c21
U8 U12
7556-01-r0 7556-00-r2
23c6
According to U14:
INVALID DIPSWITCH SETTING
ENABLE AT LEAST TWO GAMES
CS1-1 ON =JOKER POKER
CS1-2 ON =DEUCES
CS1-3 ON =FEVER POKER
CS1-4 ON =JACKS POKER
CS1-5 ON =BLACKJACK
CS1-6 ON =KENO WILD
CS1-7 ON =TBALL KENO
CS1-8 ON =BINGO
CSW1-1 ON =DOLR JACKS
CSW1-2 ON =DOLR DEUCE
CSW1-3 ON =5# KENO
CSW1-4 ON =TREASURE
Dipswitch on CRT-350 main is labeled S1
Dipswitch on CRT-352 MEM is labeled SW1
-------------------------------------------------------------
Merit MULTI-ACTION 7558-01-R0 DS - Touchscreen game
MERIT CRT-350 REV B + MEMORY EXPANSION BOARD CRT-352 rev A
Main PCB graphics roms (on main board):
Multi-Action
7556-WV
U46
Multi-Action
7556-WV
U47
Multi-Action
7556-WV
U48
Program ROMs on Expansion board:
U11 *Empty U15
7558-01-R0 DS
cfba
U10 U14
7558-01-R0 DS 7558-01-R0 DS
88b5 a309
U9 U13
7558-01-R0 DS 7558-01-R0 DS
e651 a833
U8 U12
7558-01-R0 DS 7558-01-R0 DS
d27a 11ff
According to U12:
INVALID DIPSW
ENABLE 2+ GAMES
CS1-1 ON =JOKER (Joker Poker)
CS1-2 ON =DEUCES (Deuces Wild)
CS1-3 ON =FEVER (Flush Fever)
CS1-4 ON =JACKS (Jacks or Better Poker)
CS1-5 ON =BJACK (Blackjack)
CS1-6 ON =KNO WLD (Wild Spot Keno)
CS1-7 ON =PWR KNO (Power Hit Keno)
CS1-8 ON =8 LINE (Super 8)
CSW1-1 ON =5 REEL (Five Reel)
CSW1-2 ON =$ DEUCE (Dollar Deuces)
CSW1-3 ON =D DOG (Dogs + Diamonds)
CSW1-4 ON =TR7 (Treasure Sevens)
Dipswitch on CRT-350 main is labeled S1
Dipswitch on CRT-352 MEM is labeled SW1
*/
#include "emu.h"
#include "screen.h"
#include "cpu/z80/z80.h"
#include "machine/ds1204.h"
#include "machine/i8255.h"
#include "machine/ins8250.h"
#include "machine/microtch.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "video/bt47x.h"
#include "video/mc6845.h"
namespace {
class merit3xx_state : public driver_device
{
public:
merit3xx_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_rombank(*this, "rombank")
{ }
void merit300(machine_config &config);
void merit350(machine_config &config);
protected:
virtual void machine_start() override;
private:
MC6845_UPDATE_ROW(update_row);
void ppi1_pa_w(u8 data);
void crt350_rombank_w(u8 data);
void main_map(address_map &map);
void io_map(address_map &map);
void crt350_main_map(address_map &map);
void crt350_io_map(address_map &map);
required_device<cpu_device> m_maincpu;
required_memory_bank m_rombank;
};
void merit3xx_state::machine_start()
{
memory_region *rom = memregion("maincpu");
m_rombank->configure_entries(0, rom->bytes() / 0x8000, rom->base(), 0x8000);
m_rombank->set_entry(0);
}
MC6845_UPDATE_ROW(merit3xx_state::update_row)
{
}
void merit3xx_state::ppi1_pa_w(u8 data)
{
m_rombank->set_entry((data & 0x04) >> 1 | (~data & 0x01));
}
void merit3xx_state::crt350_rombank_w(u8 data)
{
m_rombank->set_entry(data & 0x07);
}
void merit3xx_state::main_map(address_map &map)
{
map(0x0000, 0x7fff).bankr("rombank");
map(0x8000, 0x9fff).ram().share("nvram");
map(0xc000, 0xdfff).ram().share("charram");
map(0xe000, 0xffff).ram().share("attrram");
}
void merit3xx_state::io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x03).rw("ppi0", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0x04, 0x07).rw("ppi1", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0x10, 0x17).rw("uart", FUNC(ns16550_device::ins8250_r), FUNC(ns16550_device::ins8250_w));
map(0x18, 0x1b).m("ramdac", FUNC(bt476_device::map));
map(0x40, 0x40).rw("crtc", FUNC(hd6845s_device::status_r), FUNC(hd6845s_device::address_w));
map(0x41, 0x41).rw("crtc", FUNC(hd6845s_device::register_r), FUNC(hd6845s_device::register_w));
//map(0x80, 0x80).r("ssg", FUNC(ym2149_device::data_r));
//map(0x80, 0x81).w("ssg", FUNC(ym2149_device::address_data_w));
}
void merit3xx_state::crt350_main_map(address_map &map)
{
main_map(map);
map(0xa000, 0xbfff).ram();
}
void merit3xx_state::crt350_io_map(address_map &map)
{
io_map(map);
map(0x20, 0x20).w(FUNC(merit3xx_state::crt350_rombank_w));
}
static INPUT_PORTS_START( merit3xx )
INPUT_PORTS_END
void merit3xx_state::merit300(machine_config &config)
{
Z80(config, m_maincpu, 10_MHz_XTAL / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &merit3xx_state::main_map);
m_maincpu->set_addrmap(AS_IO, &merit3xx_state::io_map);
//NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
I8255(config, "ppi0");
i8255_device &ppi1(I8255(config, "ppi1"));
ppi1.out_pa_callback().set(FUNC(merit3xx_state::ppi1_pa_w));
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(10_MHz_XTAL, 616, 0, 512, 270, 0, 256);
screen.set_screen_update("crtc", FUNC(hd6845s_device::screen_update));
hd6845s_device &crtc(HD6845S(config, "crtc", 10_MHz_XTAL / 8));
crtc.set_screen("screen");
crtc.set_show_border_area(false);
crtc.set_char_width(8);
crtc.set_update_row_callback(FUNC(merit3xx_state::update_row));
BT476(config, "ramdac", 10_MHz_XTAL);
NS16550(config, "uart", 1.8432_MHz_XTAL);
}
void merit3xx_state::merit350(machine_config &config)
{
merit300(config);
m_maincpu->set_addrmap(AS_PROGRAM, &merit3xx_state::crt350_main_map);
m_maincpu->set_addrmap(AS_IO, &merit3xx_state::crt350_io_map);
subdevice<i8255_device>("ppi1")->out_pa_callback().set_nop();
}
ROM_START( ma6710 )
ROM_REGION(0x20000, "maincpu", 0)
ROM_LOAD( "u-1_dc-350_ticket.u1", 0x00000, 0x10000, CRC(33aa53ce) SHA1(828d6f4828d5d90777c573a6870d800ae6a51425) )
ROM_LOAD( "u-2_dc-350_ticket.u2", 0x10000, 0x10000, CRC(fcac2391) SHA1(df9a1834441569fef876594aaef7d364831dbae6) )
ROM_REGION( 0x30000, "gfx1", 0 )
ROM_LOAD( "u-46_dc-350.u46", 0x00000, 0x10000, CRC(3765a026) SHA1(cdb47d4b3775bec4b3ab16636d795ad737344166) )
ROM_LOAD( "u-47_dc-350.u47", 0x10000, 0x10000, CRC(bbcf8280) SHA1(83c6fd84bdd09dd82506d81be1cbae797fd59347) )
ROM_LOAD( "u-48_dc-350.u48", 0x20000, 0x10000, CRC(b93a0481) SHA1(df60d81fb68bd868ce94f8b313896d6d31e54ad4) )
ROM_REGION( 0x4000, "nvram", 0 )
ROM_LOAD( "ds1225y.u6", 0x0000, 0x2000, CRC(78fd0284) SHA1(37aa7deaafc6faad7505cd56a442913b35f54166) )
ROM_LOAD( "bq4010.u5", 0x2000, 0x2000, CRC(003ea272) SHA1(3f464a0189af49470b33825a00905df6b156913f) )
ROM_END
ROM_START( ma7551 )
ROM_REGION(0x40000, "maincpu", 0)
ROM_LOAD( "u8_7551-21-r2p.u8", 0x00000, 0x08000, CRC(a2ae7a03) SHA1(2d923cf068fd1b9bd5f48a110f5155b876b9ba37) )
ROM_LOAD( "u9_7551-21-r2p.u9", 0x08000, 0x08000, CRC(2e669bc9) SHA1(376e808a62e92169a5ae34b9ef808fe4eda6c13c) )
ROM_LOAD( "u10_7551-21-r2p.u10", 0x10000, 0x08000, CRC(e9425269) SHA1(030a3d9beafd08c5a571672fb6987525c8d9a0f5) )
// u11 not populated
ROM_LOAD( "u15_7551-21-r2p.u15", 0x20000, 0x08000, CRC(31283190) SHA1(153601d5df7fbbc116f876399ce194797175be2f) )
ROM_LOAD( "u14_7551-21-r2p.u14", 0x28000, 0x08000, CRC(fe993b57) SHA1(4c872b3dff278298558493f6fd9a64be63613956) )
ROM_LOAD( "u13_7551-21-r2p.u13", 0x30000, 0x08000, CRC(9194d993) SHA1(52d094f55c329a7f0b4bf1dd02a7784e9a9faa12) )
ROM_LOAD( "u12_7551-21-r2p.u12", 0x38000, 0x08000, CRC(8ca19c9c) SHA1(a694a9be8b6d2beea8ee171dcfb2fa64eb6af14c) )
ROM_REGION( 0x30000, "gfx1", 0 )
ROM_LOAD( "u46_nc+.u46", 0x00000, 0x10000, CRC(5140ca67) SHA1(0f5f7062cd874529630fd6f58e640c11f0692786) )
ROM_LOAD( "u47_nc+.u47", 0x10000, 0x10000, CRC(5f1d8ffa) SHA1(c8fe36f91ddd634e6d66434342b8dafdc1ffa332) )
ROM_LOAD( "u48_nc+.u48", 0x20000, 0x10000, CRC(1ef22a70) SHA1(f33db37dc6e2ded3a39907eb5f5ea6306fd6f8b0) )
ROM_REGION( 0xa000, "nvram", 0 )
ROM_LOAD( "dallas_ds1225y-150.u7", 0x0000, 0x2000, CRC(2526c25c) SHA1(fe7d54e65dc7bd93576f496160f63b3c8e8c128b) )
ROM_LOAD( "dallas_ds1230y-120.u7", 0x2000, 0x8000, CRC(54099035) SHA1(2a8854a862bc24ff72470660e60e9e4228158b42) )
ROM_END
ROM_START( ma7556 )
ROM_REGION(0x40000, "maincpu", 0)
ROM_LOAD( "u8_7556-01-r0_23c6.u8", 0x00000, 0x08000, CRC(4dfca3d2) SHA1(2d8cc59edad12368dbc267b763af46e095599bc0) )
ROM_LOAD( "u9_7556-01-r0_ef1e.u9", 0x08000, 0x08000, CRC(142370d6) SHA1(cb32f204b7bf78874990ef438fd5115cc3ed140e) )
ROM_LOAD( "u10_7556-01-r0_ef8f.u10", 0x10000, 0x08000, CRC(f2dfb326) SHA1(b50a234ad649d41fb50c6eec345fa9414de6cec9) )
// u11 not populated
ROM_LOAD( "u15_7556-01-r0_add3.u15", 0x20000, 0x08000, CRC(83e5f4cd) SHA1(15b999169b28fb267ec8a265c915c1d366e57655) )
ROM_LOAD( "u14_7556-01-r0_dff2.u14", 0x28000, 0x08000, CRC(9e5518c1) SHA1(37ed33118d87f0699845f84c820569666ac8c533) )
ROM_LOAD( "u13_7556-01-r0_7c21.u13", 0x30000, 0x08000, CRC(5288eecc) SHA1(efd569beb22b8a9354520e7755bd797724593a0a) )
ROM_LOAD( "u12_7556-00-r2.u12", 0x38000, 0x08000, CRC(34357c5d) SHA1(f71db3cd5ced70a709ecb8de1328c12666abc047) )
ROM_REGION( 0x30000, "gfx1", 0 )
ROM_LOAD( "multi-action_7556-wv_u46.u46", 0x00000, 0x10000, CRC(32c11634) SHA1(26f3c5c220b45e8eedad940ff94dc5ef6f89e3fa) ) // also known to labeled: U46 MLT8 cs:8bbe
ROM_LOAD( "multi-action_7556-wv_u47.u47", 0x10000, 0x10000, CRC(5781bdd7) SHA1(e3f920dd1c247f92044100e28fc39d48b02b6a4b) ) // also known to labeled: U47 MLT8 cs:0262
ROM_LOAD( "multi-action_7556-wv_u48.u48", 0x20000, 0x10000, CRC(52ac8411) SHA1(9941388b90b6b91c1dab9286db588f0032620ea4) ) // also known to labeled: U48 MLT8 cs:9daa
ROM_REGION( 0xa000, "nvram", 0 )
ROM_LOAD( "dallas_ds1225y-200.u7", 0x0000, 0x2000, BAD_DUMP CRC(5b635a95) SHA1(dd347258ba9e000963da75af5ac383c09b60be0b) )
ROM_LOAD( "dallas_ds1230y-200.u17", 0x2000, 0x8000, BAD_DUMP CRC(e0c07037) SHA1(c6674a79a51f5aacca4a9e9bd19a2ce475c98b47) )
ROM_END
ROM_START( ma7558 )
ROM_REGION(0x40000, "maincpu", 0)
ROM_LOAD( "u8_7558-01-r0_ds_d27a.u8", 0x00000, 0x08000, CRC(ff59d929) SHA1(902ba35967a49b73a6b7c1990c736ac922e25672) )
ROM_LOAD( "u9_7558-01-r0_ds_e651.u9", 0x08000, 0x08000, CRC(e02f8c98) SHA1(d04351535f86907129b97811a02a590f96f108b9) )
ROM_LOAD( "u10_7558-01-r0_ds_88b5.u10", 0x10000, 0x08000, CRC(33994802) SHA1(041190e01115abd7e629335486f7ba3070a29635) )
// u11 not populated
ROM_LOAD( "u15_7558-01-r0_ds_cfba.u15", 0x20000, 0x08000, CRC(fb698a84) SHA1(57d8ff484691b0227034815bac0c4d99bae7d067) )
ROM_LOAD( "u14_7558-01-r0_ds_a309.u14", 0x28000, 0x08000, CRC(25431b2b) SHA1(9ecd04b00d6531f41913f67fef848f2d1e6d7766) )
ROM_LOAD( "u13_7558-01-r0_ds_a833.u13", 0x30000, 0x08000, CRC(55accddc) SHA1(33c845b3b730126a1e3e26483a05e2e186925199) )
ROM_LOAD( "u12_7558-01-r0_ds_11ff.u12", 0x38000, 0x08000, CRC(9172a8a0) SHA1(b0ef6f8a706f48de9896929647ef30e3555c797b) )
ROM_REGION( 0x30000, "gfx1", 0 )
ROM_LOAD( "multi-action_7556-wv_u46.u46", 0x00000, 0x10000, CRC(32c11634) SHA1(26f3c5c220b45e8eedad940ff94dc5ef6f89e3fa) ) // also known to labeled: U46 MLT8 cs:8bbe
ROM_LOAD( "multi-action_7556-wv_u47.u47", 0x10000, 0x10000, CRC(5781bdd7) SHA1(e3f920dd1c247f92044100e28fc39d48b02b6a4b) ) // also known to labeled: U47 MLT8 cs:0262
ROM_LOAD( "multi-action_7556-wv_u48.u48", 0x20000, 0x10000, CRC(52ac8411) SHA1(9941388b90b6b91c1dab9286db588f0032620ea4) ) // also known to labeled: U48 MLT8 cs:9daa
ROM_REGION( 0xa000, "nvram", 0 )
ROM_LOAD( "dallas_ds1225y-200.u7", 0x0000, 0x2000, CRC(142c5cea) SHA1(39d787109e0b782fda5a18ff3a56cf8428cb2437) )
ROM_LOAD( "dallas_ds1230y-200.u17", 0x2000, 0x8000, CRC(9d196d52) SHA1(21fd5acd7652ba10ae6b4ae520abcc7c34eb37d1) )
ROM_END
} // anonymous namespace
// CRT-300 games
GAME( 1989, ma6710, 0, merit300, merit3xx, merit3xx_state, empty_init, ROT0, "Merit", "Multi-Action 6710-13", MACHINE_IS_SKELETON )
// CRT-350 games
GAME( 199?, ma7551, 0, merit350, merit3xx, merit3xx_state, empty_init, ROT0, "Merit", "Multi-Action 7551", MACHINE_IS_SKELETON )
GAME( 199?, ma7556, 0, merit350, merit3xx, merit3xx_state, empty_init, ROT0, "Merit", "Multi-Action 7556", MACHINE_IS_SKELETON )
GAME( 199?, ma7558, 0, merit350, merit3xx, merit3xx_state, empty_init, ROT0, "Merit", "Multi-Action 7558", MACHINE_IS_SKELETON )
|