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Diffstat (limited to 'trunk/src/mame/drivers/meritm.c')
-rw-r--r--trunk/src/mame/drivers/meritm.c1959
1 files changed, 1959 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/meritm.c b/trunk/src/mame/drivers/meritm.c
new file mode 100644
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--- /dev/null
+++ b/trunk/src/mame/drivers/meritm.c
@@ -0,0 +1,1959 @@
+/*
+ Merit CRT250 and CRT260 hardware
+
+ Driver by Mariusz Wojcieszek
+
+ CRT 250 (basic components, also used by CRT260)
+ Main CPU: Z80B
+ Sound: Yamaha YM2149F (or compatible)
+ Video: 2 Yamaha V9938 (MSX2 video chip!)
+ Other: 2 Z80APIO (I/O and interrupt controllers)
+ 1 8255 (I/O)
+
+ CRT 256: addon board for CRT 250, stores question roms (aka Memory Expansion board)
+
+ CRT 258: addon board for CRT 250, contains UART and Microtouch touch screen controller
+
+ CRT 260 additional components:
+ - Microtouch touch screen controller (SMT-3)
+ - PC16550 UART (for communication with touch screen controller)
+ - DS1204 Electronic Key (for protection)
+ - DS1232 Reset and Watchdog
+ - MAX232 (for MegaLink)
+
+ One of the following Dallas Nonvolatile SRAM chips:
+ - DS1225Y 64K Non-volitile SRAM (Mega Touch 4)
+ - DS1230Y 256K Non-volitile SRAM (Mega Touch 6)
+ - DS1644 32K NVRAM + RTC (Tournament sets)
+
+ Known Games:
+
+ CRT 250:
+ Pit Boss II (c)1988
+ Super Pit Boss (c)1988
+ Pit Boss Superstar (c)1990
+ *Pit Boss Superstar 30 (c)1993
+ *Pit Boss Superstar III 30 (c)1993?
+ Pit Boss Megastar (c)1994
+ Pit Boss Supertouch 30 (c)1993/4
+
+ CRT 260:
+ *Megatouch Video (c)1994?
+ Megatouch II (c)1994
+ Megatouch III (c)1995
+ Megatouch III Tournament Edition (c)1996
+ Megatouch IV (c)1996
+ Megatouch IV Tournament Edition (c)1996
+ Super Megatouch IV (c) 1996 (rom labels 9255-41-0x, see below)
+ Super Megatouch IV Tournament Edition (c) 1996
+ Megatouch 5 (c)1997
+ Megatouch 5 Tournament Edition (c)1997
+ Megatouch 6 (c)1998
+ *Megatouch 7 Encore (c)2000
+
+ * indicates that game needs to be dumped or redumped
+
+Custom Program Versions (from different Megatouch manuals):
+
+PROGRAM# Program Version Program Differences
+---------------------------------------------------------------------------------------------
+9255-xx-01 Standard Version Includes all Options, no Restrictions
+9255-xx-02 Minnesota Version Excludes Casino Games
+9255-xx-03 Louisiana Version Excludes all Poker Games
+9255-xx-04 Wisconsin Version Game Connot End if Player Busts; 1,000 Points are Added to End of Each Hand
+9255-xx-06 California Version Excludes Poker Double-up feature & No Free Game in Solitaire
+9255-xx-07 New Jersey Version Includes 2-Coin Limit with Lockout Coil
+9255-xx-50 Bi-Lingual ENG/GER Same as Standard Version, Without Word/Casino Games
+9255-xx-54 Bi-Lingual ENG/SPA Same as Standard Version, Without Word Games
+9255-xx-56 No Free Credits Same as Standard Version, Without Word Games and No Free Credits
+9255-xx-57 Internation Version Same as Standard Version, Without Word Games
+9255-xx-60 Bi-Lingual ENG/FRE Same as Standard Version, Without Word/Casino Games
+9255-xx-62 No Free Credit Same as Standard Version, With No Free Credit (see regional notes below)
+9255-xx-62 Croatia Same as Standard Version, With No Free Credit (see regional notes below)
+9255-xx-70 Australia Version Same as Standard Version with Special Question Set
+9255-xx-71 South Africa Ver. Same as Standard Version with Special Question Set
+
+xx = game/version code:
+
+ 20 - Megatouch 3
+ 30 - Megatouch 3 Tournament
+ 40 - Megatouch 4
+ 41 - Megatouch Super 4
+ 50 - Megatouch 4 Tournament
+ 51 - Megatouch Super 4 Tournament
+ 60 - Megatouch 5
+ 70 - Megatouch 5 Tournament
+ 80 - Megatouch 6
+
+Not all regional versions are available for each Megatouch series
+ For Megatouch 4, set 9255-40-62 is Croatia
+ For Megatouch Super 4, set 9255-41-62 is No Free Credit
+
+ Notes/ToDo:
+ - offset for top V9938 layer is hardcoded, probably should be taken from V9938 setup
+ - blinking on Megatouch title screen is probably incorrect
+ - clean up V9938 interrupt implementation
+ - finish inputs, dsw, outputs (lamps)
+ - problem with registering touches on the bottom of the screen (currently hacked to work)
+ - megat5: has jmp $0000 in the initialization code causing infinite loop, rom U38 is dumped at half size / bad dump
+ - for pbst30 only roms were found, it appears that two roms with graphics data were missing, using pitbossm roms for now
+ */
+
+#include "emu.h"
+#include "deprecat.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "sound/ay8910.h"
+#include "video/v9938.h"
+#include "machine/8255ppi.h"
+#include "machine/z80pio.h"
+#include "machine/pc16552d.h"
+#include "machine/microtch.h"
+#include "machine/nvram.h"
+
+
+typedef struct
+{
+ int state;
+ int read_ptr;
+ int last_clk;
+ UINT8 key[8];
+ UINT8 nvram[16];
+ int out_bit;
+ UINT8 command[3];
+
+} ds1204_t;
+
+class meritm_state : public driver_device
+{
+public:
+ meritm_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag) { }
+
+ UINT8* m_ram;
+ device_t *m_z80pio[2];
+ int m_vint;
+ int m_interrupt_vdp0_state;
+ int m_interrupt_vdp1_state;
+ bitmap_t *m_vdp0_bitmap;
+ bitmap_t *m_vdp1_bitmap;
+ int m_layer0_enabled;
+ int m_layer1_enabled;
+ int m_bank;
+ int m_psd_a15;
+ UINT16 m_questions_loword_address;
+ ds1204_t m_ds1204;
+};
+
+
+#define SYSTEM_CLK 21470000
+#define UART_CLK XTAL_18_432MHz
+
+
+
+/*************************************
+ *
+ * DS1204 Electronic Key
+ *
+ *************************************/
+
+#define DS1204_STATE_IDLE 0
+#define DS1204_STATE_COMMAND 1
+#define DS1204_STATE_READ_KEY 2
+#define DS1204_STATE_WRITE_SECURITY_MATCH 3
+#define DS1204_STATE_READ_NVRAM 4
+
+static void ds1204_w( ds1204_t *ds1204, int rst, int clk, int dq )
+{
+ //logerror("ds1204_w: rst = %d, clk = %d, dq = %d\n", rst, clk, dq );
+ if ( rst == 0 )
+ {
+ ds1204->state = DS1204_STATE_COMMAND;
+ ds1204->read_ptr = 0;
+ }
+ else
+ {
+ if ( (ds1204->last_clk == 1) && (clk == 0) )
+ {
+ switch(ds1204->state)
+ {
+ case DS1204_STATE_COMMAND:
+ //logerror("Command bit %d = %d\n", ds1204->read_ptr, dq);
+ if ( ds1204->read_ptr < 24 )
+ {
+ if ( dq == 1 )
+ {
+ ds1204->command[ds1204->read_ptr >> 3] |= (1 << (ds1204->read_ptr & 0x7));
+ }
+ else
+ {
+ ds1204->command[ds1204->read_ptr >> 3] &= ~(1 << (ds1204->read_ptr & 0x7));
+ }
+ ds1204->read_ptr++;
+ }
+ if ( ds1204->read_ptr == 24 )
+ {
+ ds1204->state = DS1204_STATE_READ_KEY;
+ ds1204->read_ptr = 0;
+ }
+ break;
+ case DS1204_STATE_READ_KEY:
+ //logerror("Key bit %d\n", ds1204->read_ptr);
+ if (ds1204->read_ptr < 64)
+ {
+ ds1204->out_bit = (ds1204->key[ds1204->read_ptr >> 3] >> (ds1204->read_ptr & 0x7)) & 0x01;
+ ds1204->read_ptr++;
+ }
+ if (ds1204->read_ptr == 64)
+ {
+ ds1204->state = DS1204_STATE_WRITE_SECURITY_MATCH;
+ ds1204->read_ptr = 0;
+ }
+ break;
+ case DS1204_STATE_WRITE_SECURITY_MATCH:
+ //logerror( "Security match bit %d = %d\n", ds1204->read_ptr, dq);
+ if (ds1204->read_ptr < 64)
+ {
+ ds1204->read_ptr++;
+ }
+ if (ds1204->read_ptr == 64)
+ {
+ ds1204->state = DS1204_STATE_READ_NVRAM;
+ ds1204->read_ptr = 0;
+ }
+ break;
+ case DS1204_STATE_READ_NVRAM:
+ //logerror( "Read nvram bit = %d\n", ds1204->read_ptr );
+ if (ds1204->read_ptr < 128)
+ {
+ ds1204->out_bit = (ds1204->nvram[ds1204->read_ptr >> 3] >> (ds1204->read_ptr & 0x7)) & 0x01;
+ ds1204->read_ptr++;
+ }
+ if (ds1204->read_ptr == 128)
+ {
+ ds1204->state = DS1204_STATE_IDLE;
+ ds1204->read_ptr = 0;
+ }
+ break;
+
+ }
+ }
+ ds1204->last_clk = clk;
+ }
+};
+
+static int ds1204_r(ds1204_t *ds1204)
+{
+ //logerror("ds1204_r\n");
+ return ds1204->out_bit;
+};
+
+static void ds1204_init(running_machine &machine, const UINT8* key, const UINT8* nvram)
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ memset(&state->m_ds1204, 0, sizeof(state->m_ds1204));
+ if (key)
+ memcpy(state->m_ds1204.key, key, sizeof(state->m_ds1204.key));
+ if (nvram)
+ memcpy(state->m_ds1204.nvram, nvram, sizeof(state->m_ds1204.nvram));
+
+ state_save_register_item(machine, "ds1204", NULL, 0, state->m_ds1204.state);
+ state_save_register_item(machine, "ds1204", NULL, 0, state->m_ds1204.read_ptr);
+ state_save_register_item(machine, "ds1204", NULL, 0, state->m_ds1204.last_clk);
+ state_save_register_item(machine, "ds1204", NULL, 0, state->m_ds1204.out_bit);
+ state_save_register_item_array(machine, "ds1204", NULL, 0, state->m_ds1204.command);
+};
+
+/*************************************
+ *
+ * Microtouch <-> pc16650 interface
+ *
+ *************************************/
+
+static void pc16650d_tx_callback(int channel, int count, UINT8* data)
+{
+ microtouch_rx(count, data);
+};
+
+static void meritm_microtouch_tx_callback(running_machine &machine, UINT8 data)
+{
+ pc16552d_rx_data(machine, 0, 0, data);
+};
+
+/*************************************
+ *
+ * Microtouch touch coordinate transformation
+ *
+ *************************************/
+static int meritm_touch_coord_transform(running_machine &machine, int *touch_x, int *touch_y)
+{
+ int xscr = (int)((double)(*touch_x)/0x4000*544);
+ int yscr = (int)((double)(*touch_y)/0x4000*480);
+
+ if( (xscr < 16) ||
+ (xscr > 544-16) ||
+ (yscr < 16) ||
+ (yscr > 480-16))
+ {
+ return 0;
+ }
+ if ( yscr > 480-63 )
+ {
+ *touch_y = 0x3fff;
+ }
+ else
+ {
+ *touch_y = (int)((double)(yscr - 16)*0x4000/(480-16-63));
+ }
+ *touch_x = (int)((double)(xscr - 16)*0x4000/(544-16-16));
+
+ return 1;
+}
+
+/*************************************
+ *
+ * Video
+ *
+ *************************************/
+
+
+static INTERRUPT_GEN( meritm_interrupt )
+{
+ v9938_set_sprite_limit(0, 0);
+ v9938_set_resolution(0, RENDER_HIGH);
+ v9938_interrupt(device->machine(), 0);
+
+ v9938_set_sprite_limit(1, 0);
+ v9938_set_resolution(1, RENDER_HIGH);
+ v9938_interrupt(device->machine(), 1);
+}
+
+static void meritm_vdp0_interrupt(running_machine &machine, int i)
+{
+ /* this is not used as the v9938 interrupt callbacks are broken
+ interrupts seem to be fired quite randomly */
+}
+
+static void meritm_vdp1_interrupt(running_machine &machine, int i)
+{
+ /* this is not used as the v9938 interrupt callbacks are broken
+ interrupts seem to be fired quite randomly */
+}
+
+
+static VIDEO_START( meritm )
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ state->m_layer0_enabled = state->m_layer1_enabled = 1;
+
+ state->m_vdp0_bitmap = machine.primary_screen->alloc_compatible_bitmap();
+ v9938_init (machine, 0, *machine.primary_screen, state->m_vdp0_bitmap, MODEL_V9938, 0x20000, meritm_vdp0_interrupt);
+ v9938_reset(0);
+
+ state->m_vdp1_bitmap = machine.primary_screen->alloc_compatible_bitmap();
+ v9938_init (machine, 1, *machine.primary_screen, state->m_vdp1_bitmap, MODEL_V9938, 0x20000, meritm_vdp1_interrupt);
+ v9938_reset(1);
+
+ state->m_vint = 0x18;
+ state_save_register_global(machine, state->m_vint);
+ state_save_register_global(machine, state->m_interrupt_vdp0_state);
+ state_save_register_global(machine, state->m_interrupt_vdp1_state);
+ state_save_register_global_bitmap(machine, state->m_vdp0_bitmap);
+ state_save_register_global_bitmap(machine, state->m_vdp1_bitmap);
+
+}
+
+static SCREEN_UPDATE( meritm )
+{
+ meritm_state *state = screen->machine().driver_data<meritm_state>();
+ if(screen->machine().input().code_pressed_once(KEYCODE_Q))
+ {
+ state->m_layer0_enabled^=1;
+ popmessage("Layer 0 %sabled",state->m_layer0_enabled ? "en" : "dis");
+ }
+ if(screen->machine().input().code_pressed_once(KEYCODE_W))
+ {
+ state->m_layer1_enabled^=1;
+ popmessage("Layer 1 %sabled",state->m_layer1_enabled ? "en" : "dis");
+ }
+
+ bitmap_fill(bitmap, cliprect, get_black_pen(screen->machine()));
+
+ if ( state->m_layer0_enabled )
+ {
+ copybitmap(bitmap, state->m_vdp0_bitmap, 0, 0, 0, 0, cliprect);
+ }
+
+ if ( state->m_layer1_enabled )
+ {
+ copybitmap_trans(bitmap, state->m_vdp1_bitmap, 0, 0, -6, -12, cliprect, v9938_get_transpen(1));
+ }
+ return 0;
+}
+
+/*************************************
+ *
+ * Bank switching (ROM/RAM)
+ *
+ *************************************/
+
+
+static void meritm_crt250_switch_banks( running_machine &machine )
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ int rombank = (state->m_bank & 0x07) ^ 0x07;
+
+ //logerror( "CRT250: Switching banks: rom = %0x (bank = %x)\n", rombank, state->m_bank );
+ memory_set_bank(machine, "bank1", rombank );
+};
+
+static WRITE8_HANDLER(meritm_crt250_bank_w)
+{
+ meritm_crt250_switch_banks(space->machine());
+};
+
+static void meritm_switch_banks( running_machine &machine )
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ int rambank = (state->m_psd_a15 >> 2) & 0x3;
+ int rombank = (((state->m_bank >> 3) & 0x3) << 5) |
+ (((state->m_psd_a15 >> 1) & 0x1) << 4) |
+ (((state->m_bank & 0x07) ^ 0x07) << 1) |
+ (state->m_psd_a15 & 0x1);
+
+ //logerror( "Switching banks: rom = %0x (bank = %x), ram = %0x\n", rombank, state->m_bank, rambank);
+ memory_set_bank(machine, "bank1", rombank );
+ memory_set_bank(machine, "bank2", rombank | 0x01);
+ memory_set_bank(machine, "bank3", rambank);
+};
+
+static WRITE8_HANDLER(meritm_psd_a15_w)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ state->m_psd_a15 = data;
+ //logerror( "Writing PSD_A15 with %02x at PC=%04X\n", data, cpu_get_pc(&space->device()) );
+ meritm_switch_banks(space->machine());
+};
+
+static WRITE8_HANDLER(meritm_bank_w)
+{
+ meritm_switch_banks(space->machine());
+};
+
+/*************************************
+ *
+ * CRT250 question roms reading
+ *
+ *************************************/
+
+
+static WRITE8_HANDLER(meritm_crt250_questions_lo_w)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ state->m_questions_loword_address &= 0xff00;
+ state->m_questions_loword_address |= data;
+};
+
+static WRITE8_HANDLER(meritm_crt250_questions_hi_w)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ state->m_questions_loword_address &= 0x00ff;
+ state->m_questions_loword_address |= (data << 8);
+};
+
+static WRITE8_HANDLER(meritm_crt250_questions_bank_w)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ UINT32 questions_address;
+ UINT8 *dst;
+
+ if ((state->m_bank & 0x07) != 0)
+ {
+ logerror("meritm_crt250_questions_bank_w: bank is %d\n", state->m_bank);
+ return;
+ }
+
+ dst = space->machine().region("maincpu")->base() + 0x70000 + 2;
+
+ if (data == 0)
+ {
+ *dst = 0xff;
+ }
+ else if (data == 0xff)
+ {
+ // ignore
+ }
+ else
+ {
+ switch(data)
+ {
+ case 0x6c: questions_address = 0x00000; break;
+ case 0x6d: questions_address = 0x10000; break;
+ case 0x6e: questions_address = 0x20000; break;
+ case 0x6f: questions_address = 0x30000; break;
+ case 0x5c: questions_address = 0x40000; break;
+ case 0x5d: questions_address = 0x50000; break;
+ case 0x5e: questions_address = 0x60000; break;
+ case 0x5f: questions_address = 0x70000; break;
+ case 0x3c: questions_address = 0x80000; break;
+ case 0x3d: questions_address = 0x90000; break;
+ case 0x3e: questions_address = 0xa0000; break;
+ case 0x3f: questions_address = 0xb0000; break;
+ default: logerror( "meritm_crt250_questions_bank_w: unknown data = %02x\n", data ); return;
+ }
+ logerror( "Reading question byte at %06X\n", questions_address | state->m_questions_loword_address);
+ *dst = space->machine().region("extra")->base()[questions_address | state->m_questions_loword_address];
+ }
+};
+
+
+/*************************************
+ *
+ * DS1644 RTC
+ *
+ *************************************/
+
+static WRITE8_HANDLER(meritm_ds1644_w)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ int rambank = (state->m_psd_a15 >> 2) & 0x3;
+ if (rambank < 3)
+ {
+ state->m_ram[rambank*0x2000 + 0x1ff8 + offset] = data;
+ }
+ else
+ {
+ if (offset == 0)
+ {
+ state->m_ram[0x7ff8] = data;
+ }
+ //logerror( "Writing RTC, reg = %d, data = %x\n", offset, data);
+ }
+};
+
+static UINT8 binary_to_BCD(UINT8 data)
+{
+ data %= 100;
+
+ return ((data / 10) << 4) | (data %10);
+}
+
+static READ8_HANDLER(meritm_ds1644_r)
+{
+ meritm_state *state = space->machine().driver_data<meritm_state>();
+ system_time systime;
+ int rambank = (state->m_psd_a15 >> 2) & 0x3;
+ if (rambank == 3)
+ {
+ //logerror( "Reading RTC, reg = %x\n", offset);
+
+ space->machine().current_datetime(systime);
+ state->m_ram[0x7ff9] = binary_to_BCD(systime.local_time.second);
+ state->m_ram[0x7ffa] = binary_to_BCD(systime.local_time.minute);
+ state->m_ram[0x7ffb] = binary_to_BCD(systime.local_time.hour);
+ state->m_ram[0x7ffc] = binary_to_BCD(systime.local_time.weekday+1);
+ state->m_ram[0x7ffd] = binary_to_BCD(systime.local_time.mday);
+ state->m_ram[0x7ffe] = binary_to_BCD(systime.local_time.month+1);
+ state->m_ram[0x7fff] = binary_to_BCD(systime.local_time.year % 100);
+ }
+ return state->m_ram[rambank*0x2000 + 0x1ff8 + offset];
+};
+
+/*************************************
+ *
+ * Memory maps
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( meritm_crt250_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0xdfff) AM_ROMBANK("bank1")
+ AM_RANGE(0xe000, 0xffff) AM_RAM AM_SHARE("nvram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( meritm_crt250_questions_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0xdfff) AM_ROMBANK("bank1")
+ AM_RANGE(0x0000, 0x0000) AM_WRITE(meritm_crt250_questions_lo_w)
+ AM_RANGE(0x0001, 0x0001) AM_WRITE(meritm_crt250_questions_hi_w)
+ AM_RANGE(0x0002, 0x0002) AM_WRITE(meritm_crt250_questions_bank_w)
+ AM_RANGE(0xe000, 0xffff) AM_RAM AM_SHARE("nvram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( meritm_crt250_io_map, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x10, 0x10) AM_READWRITE(v9938_0_vram_r, v9938_0_vram_w)
+ AM_RANGE(0x11, 0x11) AM_READWRITE(v9938_0_status_r, v9938_0_command_w)
+ AM_RANGE(0x12, 0x12) AM_WRITE(v9938_0_palette_w)
+ AM_RANGE(0x13, 0x13) AM_WRITE(v9938_0_register_w)
+ AM_RANGE(0x20, 0x20) AM_READWRITE(v9938_1_vram_r, v9938_1_vram_w)
+ AM_RANGE(0x21, 0x21) AM_READWRITE(v9938_1_status_r, v9938_1_command_w)
+ AM_RANGE(0x22, 0x22) AM_WRITE(v9938_1_palette_w)
+ AM_RANGE(0x23, 0x23) AM_WRITE(v9938_1_register_w)
+ AM_RANGE(0x30, 0x33) AM_DEVREADWRITE("ppi8255", ppi8255_r, ppi8255_w)
+ AM_RANGE(0x40, 0x43) AM_DEVREADWRITE("z80pio_0", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x50, 0x53) AM_DEVREADWRITE("z80pio_1", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x80, 0x80) AM_DEVREAD("aysnd", ay8910_r)
+ AM_RANGE(0x80, 0x81) AM_DEVWRITE("aysnd", ay8910_address_data_w)
+ AM_RANGE(0xff, 0xff) AM_WRITE(meritm_crt250_bank_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( meritm_crt250_crt258_io_map, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x10, 0x10) AM_READWRITE(v9938_0_vram_r, v9938_0_vram_w)
+ AM_RANGE(0x11, 0x11) AM_READWRITE(v9938_0_status_r, v9938_0_command_w)
+ AM_RANGE(0x12, 0x12) AM_WRITE(v9938_0_palette_w)
+ AM_RANGE(0x13, 0x13) AM_WRITE(v9938_0_register_w)
+ AM_RANGE(0x20, 0x20) AM_READWRITE(v9938_1_vram_r, v9938_1_vram_w)
+ AM_RANGE(0x21, 0x21) AM_READWRITE(v9938_1_status_r, v9938_1_command_w)
+ AM_RANGE(0x22, 0x22) AM_WRITE(v9938_1_palette_w)
+ AM_RANGE(0x23, 0x23) AM_WRITE(v9938_1_register_w)
+ AM_RANGE(0x30, 0x33) AM_DEVREADWRITE("ppi8255", ppi8255_r, ppi8255_w)
+ AM_RANGE(0x40, 0x43) AM_DEVREADWRITE("z80pio_0", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x50, 0x53) AM_DEVREADWRITE("z80pio_1", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x60, 0x67) AM_READWRITE(pc16552d_0_r,pc16552d_0_w)
+ AM_RANGE(0x80, 0x80) AM_DEVREAD("aysnd", ay8910_r)
+ AM_RANGE(0x80, 0x81) AM_DEVWRITE("aysnd", ay8910_address_data_w)
+ AM_RANGE(0xff, 0xff) AM_WRITE(meritm_crt250_bank_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( meritm_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_ROMBANK("bank1")
+ AM_RANGE(0x8000, 0xdfff) AM_ROMBANK("bank2")
+ AM_RANGE(0xe000, 0xffff) AM_RAMBANK("bank3") AM_SHARE("nvram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( meritm_io_map, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_WRITE(meritm_psd_a15_w)
+ AM_RANGE(0x01, 0x01) AM_WRITE(watchdog_reset_w)
+ AM_RANGE(0x10, 0x10) AM_READWRITE(v9938_0_vram_r, v9938_0_vram_w)
+ AM_RANGE(0x11, 0x11) AM_READWRITE(v9938_0_status_r, v9938_0_command_w)
+ AM_RANGE(0x12, 0x12) AM_WRITE(v9938_0_palette_w)
+ AM_RANGE(0x13, 0x13) AM_WRITE(v9938_0_register_w)
+ AM_RANGE(0x20, 0x20) AM_READWRITE(v9938_1_vram_r, v9938_1_vram_w)
+ AM_RANGE(0x21, 0x21) AM_READWRITE(v9938_1_status_r, v9938_1_command_w)
+ AM_RANGE(0x22, 0x22) AM_WRITE(v9938_1_palette_w)
+ AM_RANGE(0x23, 0x23) AM_WRITE(v9938_1_register_w)
+ AM_RANGE(0x30, 0x33) AM_DEVREADWRITE("ppi8255", ppi8255_r, ppi8255_w)
+ AM_RANGE(0x40, 0x43) AM_DEVREADWRITE("z80pio_0", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x50, 0x53) AM_DEVREADWRITE("z80pio_1", z80pio_cd_ba_r, z80pio_cd_ba_w)
+ AM_RANGE(0x60, 0x67) AM_READWRITE(pc16552d_0_r,pc16552d_0_w)
+ AM_RANGE(0x80, 0x80) AM_DEVREAD("aysnd", ay8910_r)
+ AM_RANGE(0x80, 0x81) AM_DEVWRITE("aysnd", ay8910_address_data_w)
+ AM_RANGE(0xff, 0xff) AM_WRITE(meritm_bank_w)
+ADDRESS_MAP_END
+
+/*************************************
+ *
+ * Input ports
+ *
+ *************************************/
+
+static INPUT_PORTS_START(meritm_crt260)
+ PORT_INCLUDE(microtouch)
+
+ PORT_START("PIO1_PORTA")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("PIO1_PORTB")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME( "Calibration" ) PORT_CODE(KEYCODE_C)
+
+ PORT_START("DSW") /* need for AY-8910 accesses */
+ PORT_BIT( 0xff, 0x00, IPT_UNUSED)
+INPUT_PORTS_END
+
+static INPUT_PORTS_START(meritm_crt250)
+ PORT_START("PIO1_PORTA")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON3 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON5 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON6 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON7 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("PIO1_PORTB")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
+
+ PORT_START("DSW") /* need for AY-8910 accesses */
+ PORT_BIT( 0xff, 0x00, IPT_UNUSED)
+INPUT_PORTS_END
+
+static INPUT_PORTS_START(pitbossm)
+ PORT_INCLUDE(meritm_crt250)
+
+ PORT_MODIFY("DSW")
+ PORT_DIPUNUSED_DIPLOC( 0x01, 0x00, "SW1:1" ) /* Unused */
+ PORT_DIPNAME( 0x02, 0x02, "Solitaire Timer Mode" ) PORT_DIPLOCATION("SW1:2")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, "Sex Trivia" ) PORT_DIPLOCATION("SW1:3")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x00, "Coin Limit" ) PORT_DIPLOCATION("SW1:4")
+ PORT_DIPSETTING( 0x00, "No Coin Limit" )
+ PORT_DIPSETTING( 0x08, "4 Coin Limit" ) /* With Lockout coil */
+ PORT_DIPNAME( 0x10, 0x10, "Run 21 and Trivia Whiz 2000: Coins to start" ) PORT_DIPLOCATION("SW1:5")
+ PORT_DIPSETTING( 0x00, "2 Coins" )
+ PORT_DIPSETTING( 0x10, "1 Coin" )
+ PORT_DIPNAME( 0x20, 0x20, "Great Solitaire: Coins to start" ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x00, "2 Coins" )
+ PORT_DIPSETTING( 0x20, "1 Coin" )
+ PORT_DIPNAME( 0x40, 0x00, "Sync Adjustment (Set by factory)" ) PORT_DIPLOCATION("SW1:7") /* Sync Adjustment (Set by factory) */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, "Sync Adjustment (Set by factory)" ) PORT_DIPLOCATION("SW1:8") /* Sync Adjustment (Set by factory) */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+INPUT_PORTS_END
+
+static INPUT_PORTS_START(pitbossa)
+ PORT_INCLUDE(pitbossm)
+
+ PORT_MODIFY("DSW")
+ PORT_DIPNAME( 0x20, 0x20, "Great Solitaire: Coins to start" ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x00, "4 Coins" )
+ PORT_DIPSETTING( 0x20, "2 Coins" )
+INPUT_PORTS_END
+
+static INPUT_PORTS_START(pbst30)
+ PORT_INCLUDE(meritm_crt260)
+
+ PORT_MODIFY("DSW")
+ PORT_DIPNAME( 0x01, 0x00, "Invert Touch Screen Coordinates" ) PORT_DIPLOCATION("SW1:1") /* In case you installed the touch screen upside down??? */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, "Enable Casino Games" ) PORT_DIPLOCATION("SW1:2")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x04, 0x04, "Sexy Trivia Category" ) PORT_DIPLOCATION("SW1:3")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:4") /* Likely Coin limit */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( On ) )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:5")
+ PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_1C ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:7")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:8")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+INPUT_PORTS_END
+
+/*************************************
+ *
+ * 8255
+ *
+ *************************************/
+
+static READ8_DEVICE_HANDLER(meritm_8255_port_c_r)
+{
+ //logerror( "8255 port C read\n" );
+ return 0xff;
+};
+
+static WRITE8_DEVICE_HANDLER(meritm_crt250_port_b_w)
+{
+ //popmessage("Lamps: %d %d %d %d %d %d %d", BIT(data,0), BIT(data,1), BIT(data,2), BIT(data,3), BIT(data,4), BIT(data,5), BIT(data,6) );
+ output_set_value("P1 DISC 1 LAMP", !BIT(data,0));
+ output_set_value("P1 DISC 2 LAMP", !BIT(data,1));
+ output_set_value("P1 DISC 3 LAMP", !BIT(data,2));
+ output_set_value("P1 DISC 4 LAMP", !BIT(data,3));
+ output_set_value("P1 DISC 5 LAMP", !BIT(data,4));
+ output_set_value("P1 PLAY LAMP", !BIT(data,5));
+ output_set_value("P1 CANCEL LAMP", !BIT(data,6));
+}
+
+static const ppi8255_interface crt260_ppi8255_intf =
+{
+ DEVCB_NULL, /* Port A read */
+ DEVCB_NULL, /* Port B read */
+ DEVCB_HANDLER(meritm_8255_port_c_r), /* Port C read */
+ DEVCB_NULL, /* Port A write (used) */
+ DEVCB_NULL, /* Port B write (used LMP x DRIVE) */
+ DEVCB_NULL /* Port C write */
+};
+
+static const ppi8255_interface crt250_ppi8255_intf =
+{
+ DEVCB_NULL, /* Port A read */
+ DEVCB_NULL, /* Port B read */
+ DEVCB_HANDLER(meritm_8255_port_c_r), /* Port C read */
+ DEVCB_NULL, /* Port A write (used) */
+ DEVCB_HANDLER(meritm_crt250_port_b_w), /* Port B write (used LMP x DRIVE) */
+ DEVCB_NULL /* Port C write */
+};
+
+/*************************************
+ *
+ * AY8930
+ *
+ *************************************/
+
+/*
+ Port A: DSW
+ Port B: Bits 0,1 used
+*/
+
+static WRITE8_DEVICE_HANDLER(meritm_ay8930_port_b_w)
+{
+ // lamps
+};
+
+static const ay8910_interface ay8910_config =
+{
+ AY8910_LEGACY_OUTPUT,
+ AY8910_DEFAULT_LOADS,
+ DEVCB_INPUT_PORT("DSW"), /* Port A read */
+ DEVCB_NULL, /* Port B read */
+ DEVCB_NULL, /* Port A write */
+ DEVCB_HANDLER(meritm_ay8930_port_b_w) /* Port B write */
+};
+
+/*************************************
+ *
+ * PIOs
+ *
+ *************************************/
+
+static READ8_DEVICE_HANDLER(meritm_audio_pio_port_a_r)
+{
+ meritm_state *state = device->machine().driver_data<meritm_state>();
+ /*
+
+ bit signal description
+
+ 0 BANK0
+ 1 BANK1
+ 2 BANK2
+ 3 /VINT1 V9938 #1 INT
+ 4 /VINT2 V9938 #2 INT
+ 5 BANK3
+ 6
+ 7
+
+ */
+
+ return state->m_vint;
+};
+
+static READ8_DEVICE_HANDLER(meritm_audio_pio_port_b_r)
+{
+ meritm_state *state = device->machine().driver_data<meritm_state>();
+ /*
+
+ bit description
+
+ 0 J4 D0
+ 1 J4 D1
+ 2 J4 D2
+ 3 J4 D3
+ 4 J4 D4
+ 5 J4 D5
+ 6 J4 D6
+ 7 J4 D7
+
+ */
+
+ return ds1204_r(&state->m_ds1204);
+};
+
+static WRITE8_DEVICE_HANDLER(meritm_audio_pio_port_a_w)
+{
+ meritm_state *state = device->machine().driver_data<meritm_state>();
+ /*
+
+ bit signal description
+
+ 0 BANK0
+ 1 BANK1
+ 2 BANK2
+ 3 /VINT1 V9938 #1 INT
+ 4 /VINT2 V9938 #2 INT
+ 5 BANK3
+ 6
+ 7
+
+ */
+
+ state->m_bank = (data & 7) | ((data >> 2) & 0x18);
+ //logerror("Writing BANK with %x (raw = %x)\n", state->m_bank, data);
+};
+
+static WRITE8_DEVICE_HANDLER(meritm_audio_pio_port_b_w)
+{
+ meritm_state *drvstate = device->machine().driver_data<meritm_state>();
+ /*
+
+ bit description
+
+ 0 J4 D0
+ 1 J4 D1
+ 2 J4 D2
+ 3 J4 D3
+ 4 J4 D4
+ 5 J4 D5
+ 6 J4 D6
+ 7 J4 D7
+
+ */
+
+ ds1204_w(&drvstate->m_ds1204, (data & 0x4) >> 2, (data & 0x2) >> 1, data & 0x01);
+};
+
+static WRITE8_DEVICE_HANDLER(meritm_io_pio_port_a_w)
+{
+ /*
+
+ bit description
+
+ 0 J3 PE0
+ 1 J3 PE1
+ 2 J3 PE2
+ 3 J3 PE3
+ 4 J3 PE4
+ 5 J3 PE5
+ 6 J3 PE6
+ 7 J3 PE7
+
+ */
+};
+
+static WRITE8_DEVICE_HANDLER(meritm_io_pio_port_b_w)
+{
+ /*
+
+ bit description
+
+ 0 J3 PF0
+ 1 J3 PF1
+ 2 J3 PF2
+ 3 J3 PF3
+ 4 J3 PF4
+ 5 J3 PF5
+ 6 J3 PF6
+ 7 J3 PF7
+
+ */
+};
+
+static Z80PIO_INTERFACE( meritm_audio_pio_intf )
+{
+ DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0),
+ DEVCB_HANDLER(meritm_audio_pio_port_a_r),
+ DEVCB_HANDLER(meritm_audio_pio_port_a_w),
+ DEVCB_NULL,
+ DEVCB_HANDLER(meritm_audio_pio_port_b_r),
+ DEVCB_HANDLER(meritm_audio_pio_port_b_w),
+ DEVCB_NULL
+};
+
+static Z80PIO_INTERFACE( meritm_io_pio_intf )
+{
+ DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0),
+ DEVCB_INPUT_PORT("PIO1_PORTA"),
+ DEVCB_HANDLER(meritm_io_pio_port_a_w),
+ DEVCB_NULL,
+ DEVCB_INPUT_PORT("PIO1_PORTB"),
+ DEVCB_HANDLER(meritm_io_pio_port_b_w),
+ DEVCB_NULL
+};
+
+static const z80_daisy_config meritm_daisy_chain[] =
+{
+ { "z80pio_0" },
+ { "z80pio_1" },
+ { NULL }
+};
+
+static MACHINE_START(merit_common)
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ state->m_z80pio[0] = machine.device( "z80pio_0" );
+ state->m_z80pio[1] = machine.device( "z80pio_1" );
+
+ z80pio_astb_w(state->m_z80pio[0], 1);
+ z80pio_bstb_w(state->m_z80pio[0], 1);
+ z80pio_astb_w(state->m_z80pio[1], 1);
+ z80pio_bstb_w(state->m_z80pio[1], 1);
+};
+
+static MACHINE_START(meritm_crt250)
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ memory_configure_bank(machine, "bank1", 0, 8, machine.region("maincpu")->base(), 0x10000);
+ state->m_bank = 0xff;
+ meritm_crt250_switch_banks(machine);
+ MACHINE_START_CALL(merit_common);
+ state_save_register_global(machine, state->m_bank);
+
+};
+
+static MACHINE_START(meritm_crt250_questions)
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ MACHINE_START_CALL(meritm_crt250);
+ state_save_register_global(machine, state->m_questions_loword_address);
+};
+
+static MACHINE_START(meritm_crt250_crt252_crt258)
+{
+ MACHINE_START_CALL(meritm_crt250_questions);
+ pc16552d_init(machine, 0, UART_CLK, NULL, pc16650d_tx_callback);
+ microtouch_init(machine, meritm_microtouch_tx_callback, meritm_touch_coord_transform);
+}
+
+static MACHINE_START(meritm_crt260)
+{
+ meritm_state *state = machine.driver_data<meritm_state>();
+ state->m_ram = auto_alloc_array(machine, UINT8, 0x8000 );
+ machine.device<nvram_device>("nvram")->set_base(state->m_ram, 0x8000);
+ memset(state->m_ram, 0x00, 0x8000);
+ memory_configure_bank(machine, "bank1", 0, 128, machine.region("maincpu")->base(), 0x8000);
+ memory_configure_bank(machine, "bank2", 0, 128, machine.region("maincpu")->base(), 0x8000);
+ memory_configure_bank(machine, "bank3", 0, 4, state->m_ram, 0x2000);
+ state->m_bank = 0xff;
+ state->m_psd_a15 = 0;
+ meritm_switch_banks(machine);
+ MACHINE_START_CALL(merit_common);
+ pc16552d_init(machine, 0, UART_CLK, NULL, pc16650d_tx_callback);
+ microtouch_init(machine, meritm_microtouch_tx_callback, meritm_touch_coord_transform);
+ state_save_register_global(machine, state->m_bank);
+ state_save_register_global(machine, state->m_psd_a15);
+ state_save_register_global_pointer(machine, state->m_ram, 0x8000);
+};
+
+// from MSX2 driver, may be not accurate for merit games
+#define MSX2_XBORDER_PIXELS 16
+#define MSX2_YBORDER_PIXELS 28
+#define MSX2_TOTAL_XRES_PIXELS 256 * 2 + (MSX2_XBORDER_PIXELS * 2)
+#define MSX2_TOTAL_YRES_PIXELS 212 * 2 + (MSX2_YBORDER_PIXELS * 2)
+#define MSX2_VISIBLE_XBORDER_PIXELS 8 * 2
+#define MSX2_VISIBLE_YBORDER_PIXELS 14 * 2
+
+static TIMER_DEVICE_CALLBACK( vblank_start_tick )
+{
+ meritm_state *state = timer.machine().driver_data<meritm_state>();
+ /* this is a workaround to signal the v9938 vblank interrupt correctly */
+ state->m_vint = 0x08;
+ z80pio_pa_w(state->m_z80pio[0], 0, state->m_vint);
+}
+
+static TIMER_DEVICE_CALLBACK( vblank_end_tick )
+{
+ meritm_state *state = timer.machine().driver_data<meritm_state>();
+ /* this is a workaround to signal the v9938 vblank interrupt correctly */
+ state->m_vint = 0x18;
+ z80pio_pa_w(state->m_z80pio[0], 0, state->m_vint);
+}
+
+static MACHINE_CONFIG_START( meritm_crt250, meritm_state )
+ MCFG_CPU_ADD("maincpu", Z80, SYSTEM_CLK/6)
+ MCFG_CPU_PROGRAM_MAP(meritm_crt250_map)
+ MCFG_CPU_IO_MAP(meritm_crt250_io_map)
+ MCFG_CPU_CONFIG(meritm_daisy_chain)
+ MCFG_CPU_VBLANK_INT_HACK(meritm_interrupt,262)
+
+ MCFG_MACHINE_START(meritm_crt250)
+
+ MCFG_PPI8255_ADD( "ppi8255", crt250_ppi8255_intf )
+
+ MCFG_Z80PIO_ADD( "z80pio_0", SYSTEM_CLK/6, meritm_audio_pio_intf )
+ MCFG_Z80PIO_ADD( "z80pio_1", SYSTEM_CLK/6, meritm_io_pio_intf )
+
+ MCFG_TIMER_ADD_SCANLINE("vblank_start", vblank_start_tick, "screen", 259, 262)
+ MCFG_TIMER_ADD_SCANLINE("vblank_end", vblank_end_tick, "screen", 262, 262)
+
+ MCFG_NVRAM_ADD_0FILL("nvram")
+
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
+
+ MCFG_SCREEN_ADD("screen",RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(MSX2_TOTAL_XRES_PIXELS, MSX2_TOTAL_YRES_PIXELS)
+ MCFG_SCREEN_VISIBLE_AREA(MSX2_XBORDER_PIXELS - MSX2_VISIBLE_XBORDER_PIXELS, MSX2_TOTAL_XRES_PIXELS - MSX2_XBORDER_PIXELS + MSX2_VISIBLE_XBORDER_PIXELS - 1, MSX2_YBORDER_PIXELS - MSX2_VISIBLE_YBORDER_PIXELS, MSX2_TOTAL_YRES_PIXELS - MSX2_YBORDER_PIXELS + MSX2_VISIBLE_YBORDER_PIXELS - 1)
+ MCFG_SCREEN_UPDATE(meritm)
+ MCFG_PALETTE_LENGTH(512)
+
+ MCFG_PALETTE_INIT( v9938 )
+
+ MCFG_VIDEO_START(meritm)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("aysnd", AY8910, SYSTEM_CLK/12)
+ MCFG_SOUND_CONFIG(ay8910_config)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( meritm_crt250_questions, meritm_crt250 )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(meritm_crt250_questions_map)
+ MCFG_MACHINE_START(meritm_crt250_questions)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( meritm_crt250_crt252_crt258, meritm_crt250_questions )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_IO_MAP(meritm_crt250_crt258_io_map)
+ MCFG_MACHINE_START(meritm_crt250_crt252_crt258)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( meritm_crt260, meritm_crt250 )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(meritm_map)
+ MCFG_CPU_IO_MAP(meritm_io_map)
+
+ MCFG_PPI8255_RECONFIG( "ppi8255", crt260_ppi8255_intf )
+
+ MCFG_WATCHDOG_TIME_INIT(attotime::from_msec(1200)) // DS1232, TD connected to VCC
+ MCFG_MACHINE_START(meritm_crt260)
+
+MACHINE_CONFIG_END
+
+
+/*
+ Pit Boss II - Merit Industries Inc. 1988
+ ----------------------------------------
+
+ All eproms are 27C512
+
+ One 8 bank dip switch.
+
+ Two YAMAHA V9938 Video Processors.
+
+ 21.47727 MHz Crystal
+
+ CPU Z80
+
+ Audio AY8930
+
+ Two Z80A-PIO
+
+ One bq4010YMA-150 NVRAM
+ Eight V53C464AP80 (41464) RAMS
+
+ One PAL16L8AN
+ One PAL20L10NC
+*/
+
+ROM_START( pitboss2 )
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "u9", 0x00000, 0x10000, CRC(a1b6ac15) SHA1(b7b395f3e7e14dbb84003e03bf7d054e795a7211) )
+ ROM_LOAD( "u10", 0x10000, 0x10000, CRC(207aa83c) SHA1(1955d75b9e561312e98831571c9853579ded3734) )
+ ROM_LOAD( "u11", 0x20000, 0x10000, CRC(2052e043) SHA1(36b6cbc5712fc736c748a68bd12675291eae669d) )
+ ROM_LOAD( "u12", 0x30000, 0x10000, CRC(33653f16) SHA1(57b9822499324502d66dc5a40e662596e5336943) )
+ ROM_LOAD( "u13", 0x40000, 0x10000, CRC(4f139e88) SHA1(425dd34804cc614aa93a468d2ba3e16de62f099c) )
+ ROM_LOAD( "u14", 0x50000, 0x10000, CRC(a58078cd) SHA1(a028be67fa05670a689144dfb9c9da51c5732389) )
+ ROM_LOAD( "u15", 0x60000, 0x10000, CRC(239b5d03) SHA1(fffb69cd7af215445da2b1281bcbc5f4fb6cfcc3) )
+ ROM_LOAD( "u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) )
+ROM_END
+
+ROM_START( pitbosss )
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9221-10-0b.u9", 0x00000, 0x10000, CRC(e1fbf7cb) SHA1(e04163219c357cd3da2a78ba2590d453df8e9477) )
+ ROM_LOAD( "9221-10-0.u10", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) )
+ ROM_LOAD( "9221-10-0b.u11", 0x20000, 0x10000, CRC(6d6dfaf3) SHA1(de76c577eef1bb6637aacffedcc40266af92506e) )
+ ROM_LOAD( "9221-10-0.u12", 0x30000, 0x10000, CRC(3577a203) SHA1(80f9c827ad9dea2c6af788bd3b46ab65e8c594eb) )
+ ROM_LOAD( "9221-10-0.u13", 0x40000, 0x10000, CRC(466f81f9) SHA1(88429d9ff53d27bf639200852a7bf61768c8fd1b) )
+ ROM_LOAD( "9221-10-0.u14", 0x50000, 0x10000, CRC(0720faa6) SHA1(1d78d711e3aab1ecf604ae7b9c374d27639a97c3) )
+ ROM_LOAD( "9221-10-0.u15", 0x60000, 0x10000, CRC(c302b4c2) SHA1(d62d4bb33a9ccb95d1e550f9e439be3316b94c99) )
+ ROM_LOAD( "9221-10-0.u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) // matches pitboss2
+ROM_END
+
+ROM_START( pitbosssa )
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9221-10-0a.u9", 0x00000, 0x10000, CRC(41be6b30) SHA1(c4df87a599e310ce29ee9277e5adc916ff68f060) )
+ ROM_LOAD( "9221-10-0.u10", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) )
+ ROM_LOAD( "9221-10-0a.u11", 0x20000, 0x10000, CRC(c9137469) SHA1(618680609bdffa92b919a2417bd3ec41a4c8bf2b) )
+ ROM_LOAD( "9221-10-0.u12", 0x30000, 0x10000, CRC(3577a203) SHA1(80f9c827ad9dea2c6af788bd3b46ab65e8c594eb) )
+ ROM_LOAD( "9221-10-0.u13", 0x40000, 0x10000, CRC(466f81f9) SHA1(88429d9ff53d27bf639200852a7bf61768c8fd1b) )
+ ROM_LOAD( "9221-10-0.u14a", 0x50000, 0x10000, CRC(0a928852) SHA1(c6c623f63a73b3de6298f436a4ca339c1447888d) )
+ ROM_LOAD( "9221-10-0.u15", 0x60000, 0x10000, CRC(c302b4c2) SHA1(d62d4bb33a9ccb95d1e550f9e439be3316b94c99) )
+ ROM_LOAD( "9221-10-0.u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) // matches pitboss2
+ROM_END
+
+ROM_START( spitboss )
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "u9-0a.rom", 0x00000, 0x10000, CRC(e0c45c9c) SHA1(534bff67c8fee08f1c348275de8977659efa9f69) )
+ ROM_LOAD( "u10.rom", 0x10000, 0x10000, CRC(ed010c58) SHA1(02750944a28c1c27ce2a9904d11b7e46272a940e) )
+ ROM_LOAD( "u11-0a.rom", 0x20000, 0x10000, CRC(0c65fa86) SHA1(7906a8d615116ca67bf370dfb2da8cb2389a313d) )
+ ROM_LOAD( "u12.rom", 0x30000, 0x10000, CRC(0cf95b0e) SHA1(c6ffc13703892b9ae0da39a02db37c4ec890f79e) )
+ ROM_LOAD( "u13", 0x40000, 0x10000, CRC(4f139e88) SHA1(425dd34804cc614aa93a468d2ba3e16de62f099c) ) // matches pitboss2
+ ROM_LOAD( "u14", 0x50000, 0x10000, CRC(a58078cd) SHA1(a028be67fa05670a689144dfb9c9da51c5732389) ) // matches pitboss2
+ ROM_LOAD( "u15", 0x60000, 0x10000, CRC(239b5d03) SHA1(fffb69cd7af215445da2b1281bcbc5f4fb6cfcc3) ) // matches pitboss2
+ ROM_LOAD( "u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) // matches pitboss2
+ROM_END
+
+/*
+ Pit Boss Megastar - Merit Industries Inc. 1994
+
+ Runs on standard Merit CRT-250 PCB with the following additions:
+ CRT-256 Memory Expansion board
+ CRT-254 Module (to connect the DS1204 to main board via connector J2)
+ CRT-243 Video Billboard board (Optional) with optional Video Billboard Keyboard
+
+From the "PIT BOSS MEGASTAR CHIP SET UPGRADE KIT" Program No. 9243-XX PM8938 Owner's Manual:
+
+ This kit updates the Superstar 30 program (9233-xx) to the Megastar program. The new EPROM set consists of 3
+ EPROMS: 9243-xx-xx U9, U11, U15. EPROMs U10, U12 and U13 are unchanged and do not need to be replaced in a
+ field upgrade. U14 will be removed as it is no longer used.
+
+Custom Program Versions:
+
+Program # Description Differences
+9243-00-01 Standard Megastar Includes all Options / No Restrictions
+9243-00-06 California Megastar Excludes Free Play Feature
+9243-00-07 New Jersey Megastar Excludes Set Trivia and includes 4-coin limit with lockout coil
+
+From ADDENDUM:
+
+MANUAL: Megastar Owners Game Manual PM8939
+DATE: 8/23/94
+9244-00-01, 06, 07
+
+Description of Changes:
+
+1- Great Draw Poker and 7 Stud Poker have been added to the program set
+2- On page 3-1 legend artwork has changed. PASS has been replaced with
+ PASS/PLAY and COLLECT/QUIT has been replaced with COLLECT/QUIT/RAISE
+3- An additional Solitaire Instruction decal has beed added to the kit.
+ This new Instruction decal is to be mounted in a visivle loction for
+ players use.
+
+*/
+
+ROM_START( pitbossm ) /* Dallas DS1204V security key attached to CRT-254 connected to J2 connector labeled 9244-00 U1-RO1 C1994 MII */
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9244-00-01_u9-r0", 0x00000, 0x10000, CRC(8317fea1) SHA1(eb84fdca7cd51883153561785571790d12d0d612) )
+ ROM_LOAD( "9244-00-01_u10-r0", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) ) /* Could also be labeled 9234-00-01 U10-R0 */
+ ROM_LOAD( "9244-00-01_u11-r0", 0x20000, 0x10000, CRC(45223e0d) SHA1(45070e85d87aa67ecd6a1355212f1d24142fcbd0) )
+ ROM_LOAD( "9244-00-01_u12-r0", 0x30000, 0x10000, CRC(b9fb4203) SHA1(84b514d9739d9c2ab1081cfc7cdedb41155ee038) ) /* Could also be labeled 9234-00-01 U12-R0 */
+ ROM_LOAD( "9244-00-01_u13-r0", 0x40000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) /* Could also be labeled 9234-00-01 U13-R0 */
+ ROM_LOAD( "9244-00-01_u14-r0", 0x50000, 0x10000, CRC(c0d18911) SHA1(def939c6bac1e3124197f3f783d06f3bef3d03e9) )
+ ROM_LOAD( "9244-00-01_u15-r0", 0x60000, 0x10000, CRC(740e3734) SHA1(6440d258af114f3820683b4e6fba5db6aea02231) )
+ ROM_RELOAD( 0x70000, 0x10000)
+
+
+ ROM_REGION( 0xc0000, "extra", 0 ) // question roms
+ ROM_LOAD( "qs9243-00-01_u7-r0", 0x00000, 0x40000, CRC(35f4ca46) SHA1(87917b3017f505fae65d6bfa2c7d6fb503c2da6a) ) /* These 3 roms are on CRT-256 sattalite PCB */
+ ROM_LOAD( "qs9243-00-01_u6-r0", 0x40000, 0x40000, CRC(606f1656) SHA1(7f1e3a698a34d3c3b8f9f2cd8d5224b6c096e941) )
+ ROM_LOAD( "qs9243-00-01_u5-r0", 0x80000, 0x40000, CRC(590a1565) SHA1(b80ea967b6153847b2594e9c59bfe87559022b6c) )
+ROM_END
+
+ROM_START( pitbossma ) /* Unprotected or patched?? The manual shows a DS1204 key for this set */
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9243-00-01_u9-r0", 0x00000, 0x10000, CRC(55e14fb1) SHA1(ec29764d1b63360f64b82452e0db8054b99fcca0) )
+ ROM_LOAD( "9243-00-01_u10-r0", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) ) /* Could also be labeled 9234-00-01 U10-R0 */
+ ROM_LOAD( "9243-00-01_u11-r0", 0x20000, 0x10000, CRC(47a9dfc7) SHA1(eca100003f5605bcf405f610a0458ccb67894d35) )
+ ROM_LOAD( "9243-00-01_u12-r0", 0x30000, 0x10000, CRC(b9fb4203) SHA1(84b514d9739d9c2ab1081cfc7cdedb41155ee038) ) /* Could also be labeled 9234-00-01 U12-R0 */
+ ROM_LOAD( "9243-00-01_u13-r0", 0x40000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) /* Could also be labeled 9234-00-01 U13-R0 */
+ ROM_RELOAD( 0x50000, 0x10000) /* U14 is unused for this set */
+ ROM_LOAD( "9243-00-01_u15-r0", 0x60000, 0x10000, CRC(27034061) SHA1(cff6be592a4a3ab01c204b081470f224e6186c4d) )
+ ROM_RELOAD( 0x70000, 0x10000)
+
+
+ ROM_REGION( 0xc0000, "extra", 0 ) // question roms
+ ROM_LOAD( "qs9243-00-01_u7-r0", 0x00000, 0x40000, CRC(35f4ca46) SHA1(87917b3017f505fae65d6bfa2c7d6fb503c2da6a) ) /* These 3 roms are on CRT-256 sattalite PCB */
+ ROM_LOAD( "qs9243-00-01_u6-r0", 0x40000, 0x40000, CRC(606f1656) SHA1(7f1e3a698a34d3c3b8f9f2cd8d5224b6c096e941) )
+ ROM_LOAD( "qs9243-00-01_u5-r0", 0x80000, 0x40000, CRC(590a1565) SHA1(b80ea967b6153847b2594e9c59bfe87559022b6c) )
+ROM_END
+
+ROM_START( pbst30 ) /* Dallas DS1204V security key attached to CRT-254 connected to J2 connector labeled 9234-10 U1-RO1 C1994 MII */
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9234-10-01_u9-r0", 0x00000, 0x10000, CRC(96f39c9a) SHA1(df698e94a5204cf050ceadc5c257ca5f68171114) )
+ ROM_LOAD( "9234-00-01_u10-r0", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) )
+ ROM_LOAD( "9234-10-01_u11-r0", 0x20000, 0x10000, CRC(835fa041) SHA1(2ae754c5fcf50548eb214902409217d1643c6eaa) )
+ ROM_LOAD( "9234-00-01_u12-r0", 0x30000, 0x10000, CRC(b9fb4203) SHA1(84b514d9739d9c2ab1081cfc7cdedb41155ee038) )
+ ROM_LOAD( "9234-00-01_u13-r0", 0x40000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) )
+ ROM_LOAD( "9234-10-01_u14-r0", 0x50000, 0x10000, CRC(9b0873a4) SHA1(7362c6220aa4bf1a9ab7c11cb8a51587a2a0a992) )
+ ROM_LOAD( "9234-10-01_u15-r0", 0x60000, 0x10000, CRC(9fbd8582) SHA1(c0f68c8a7cdca34c8736cefc71767c421bcaba8a) )
+
+
+ ROM_REGION( 0xc0000, "extra", 0 ) // question roms
+ ROM_LOAD( "qs9234-01_u7-r0", 0x00000, 0x40000, CRC(c0534aaa) SHA1(4b3cbf03f29fd5b4b8fd423e73c0c8147692fa75) ) /* These 3 roms are on CRT-256 sattalite PCB */
+ ROM_LOAD( "qs9234-01_u6-r0", 0x40000, 0x40000, CRC(fe2cd934) SHA1(623011dc53ed6eefefa0725dba6fd1efee2077c1) )
+ ROM_LOAD( "qs9234-01_u5-r0", 0x80000, 0x40000, CRC(293fe305) SHA1(8a551ae8fb4fa4bf329128be1bfd6f1c3ff5a366) )
+ROM_END
+
+ROM_START( pbst30b ) /* Dallas DS1204V security key attached to CRT-254 connected to J2 connector labeled 9234-01 U1-RO1 C1993 MII */
+ ROM_REGION( 0x80000, "maincpu", 0 )
+ ROM_LOAD( "9234-00-01_u9-r0a", 0x00000, 0x10000, CRC(5f058f95) SHA1(98382935340a076bdb1b20c7f16c25b6084599fe) )
+ ROM_LOAD( "9234-00-01_u10-r0", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) )
+ ROM_LOAD( "9234-00-01_u11-r0a", 0x20000, 0x10000, CRC(79125fb5) SHA1(6ca4f33c363cfb6f5c0f23b8fcc8cfcc076f68b1) )
+ ROM_LOAD( "9234-00-01_u12-r0", 0x30000, 0x10000, CRC(b9fb4203) SHA1(84b514d9739d9c2ab1081cfc7cdedb41155ee038) )
+ ROM_LOAD( "9234-00-01_u13-r0", 0x40000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) )
+ ROM_LOAD( "9234-00-01_u14-r0a", 0x50000, 0x10000, CRC(e83f91d5) SHA1(1d64c943787b239763f44be412ee7f5ad13eb37d) )
+ ROM_LOAD( "9234-00-01_u15-r0a", 0x60000, 0x10000, CRC(f10f0d39) SHA1(2b5d5a93adb5251e09160b10c067b6e70289f608) )
+
+
+ ROM_REGION( 0xc0000, "extra", 0 ) // question roms
+ ROM_LOAD( "qs9234-01_u7-r0", 0x00000, 0x40000, CRC(c0534aaa) SHA1(4b3cbf03f29fd5b4b8fd423e73c0c8147692fa75) ) /* These 3 roms are on CRT-256 sattalite PCB */
+ ROM_LOAD( "qs9234-01_u6-r0", 0x40000, 0x40000, CRC(fe2cd934) SHA1(623011dc53ed6eefefa0725dba6fd1efee2077c1) )
+ ROM_LOAD( "qs9234-01_u5-r0", 0x80000, 0x40000, CRC(293fe305) SHA1(8a551ae8fb4fa4bf329128be1bfd6f1c3ff5a366) )
+ROM_END
+
+
+/*
+ Mega Touch
+ by Merit Industries
+
+ CTR-260 PB10004
+
+ System Info
+ -----------
+ This is a counter top Touch screen game.
+
+ processor.. Z80 (Z0840006PSC)
+ sound chip Yamaha YM2149F
+ other chips- two Yamaha V9938
+ one LM1203
+ one PC16550DN
+ one PB255a or L5220574
+ One Dallas DS1204 Data Key
+ One Dallas DS1225Y 64k Non-volitile SRAM (Mega Touch 4)
+ or Dallas DS1230Y 256K Non-volitile SRAM (Mega Touch 6)
+ or Dallas DS1644 32K NVRAM + RTC (Tournament sets)
+ Two Z80APIO (Z0842004PSC)
+
+ OSC 21.477270 MHz & 1.8432MHz (near the PC16550DN)
+
+
+Actual Megatouch 4 rom labels
+--------------------------------
+
+9255-40-01
+ U32-R0 = 27C801
+C1996 MII
+
+QS9255-02
+ U36-R0 = 27C040
+C1996 MII
+
+QS9255-02
+ U37-R0 = 27C040
+C1996 MII
+
+9255-40-01
+ U38-R0E = 27C4001 (AKA 27C040)
+C1996 MII
+
+9255-40-01
+U5-B-RO1 = Dallas DS1204V
+C1996 MII
+
+
+Actual Megatouch 6 rom labels
+--------------------------------
+
+9255-60-01
+ U32-R0 = 27C801
+C1997 MII
+
+QS9255-08
+ U36-R0 = 27C040
+C1998 MII
+
+QS9255-08
+ U37-R0 = 27C801
+C1998 MII
+
+9255-80-01
+ U38-R0A = 27C801
+C1998 MII
+
+9255-80
+U5-B-RO1 = Dallas DS1204V
+C1998 MII
+
+
+PAL:
+SC3944-0A.u19 = PALCE22V10H-25PC/4
+SC3980.u40 = PALCE16V8H-25
+SC3981-0A.u51 = PALCE16V8H-25
+SC3943.u20 = ATF16V8B25PC
+
+*/
+
+ROM_START( megat2 ) /* Dallas DS1204U-3 security key labeled 9255-10-01-U5-R0 */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "qs9235-01_u5oru32-r0b", 0x000000, 0x080000, CRC(f7ecd49b) SHA1(34c1293da7304e8a46a96f1dbd7add3291afe3fc) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9235-01_u6oru36-r0", 0x100000, 0x080000, CRC(0a358743) SHA1(cc7c1b75e391204a7bdae2e1cecd9b55b572f8d5) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9235-01_u7oru37-r0", 0x200000, 0x080000, CRC(16643f83) SHA1(347af99f535a8b473c8780067d5132add7fa0d8c) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x080000)
+ ROM_LOAD( "9255-10-01_u38-r0e", 0x300000, 0x080000, CRC(797fbbaf) SHA1(8d093374f109831e469133aaebc3f7c2a5ed0623) ) /* Location U38, 11/29/1994 10:51:00 - Standard version */
+ ROM_RELOAD( 0x380000, 0x080000)
+ROM_END
+
+ROM_START( megat2a ) /* Dallas DS1204U-3 security key labeled 9255-10-01-U5-R0 */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "qs9235-01_u5oru32-r0a", 0x000000, 0x080000, CRC(ec0c18f6) SHA1(ae4f60f516097607249dbd902f8aacfe95acb065) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9235-01_u6oru36-r0", 0x100000, 0x080000, CRC(0a358743) SHA1(cc7c1b75e391204a7bdae2e1cecd9b55b572f8d5) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9235-01_u7oru37-r0", 0x200000, 0x080000, CRC(16643f83) SHA1(347af99f535a8b473c8780067d5132add7fa0d8c) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x080000)
+ ROM_LOAD( "9255-10-01_u38-r0d", 0x300000, 0x080000, CRC(f43de55f) SHA1(456b4098e22982d5f1c6f872684eefb473939747) ) /* Location U38, 941123 514 - Standard version */
+ ROM_RELOAD( 0x380000, 0x080000)
+ROM_END
+
+ROM_START( megat2ca ) /* Dallas DS1204U-3 security key labeled 9255-10-01-U5-R0 */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "qs9235-01_u5oru32-r0b", 0x000000, 0x080000, CRC(f7ecd49b) SHA1(34c1293da7304e8a46a96f1dbd7add3291afe3fc) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9235-01_u6oru36-r0", 0x100000, 0x080000, CRC(0a358743) SHA1(cc7c1b75e391204a7bdae2e1cecd9b55b572f8d5) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9235-01_u7oru37-r0", 0x200000, 0x080000, CRC(16643f83) SHA1(347af99f535a8b473c8780067d5132add7fa0d8c) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x080000)
+ ROM_LOAD( "9255-10-06_u38-r0g", 0x300000, 0x080000, CRC(51b8160a) SHA1(f2dd44ff3bd62c86c385b5e1438c560947f6c253) ) /* Location U38, 02/10/1995 10:03:52 - California version */
+ ROM_RELOAD( 0x380000, 0x080000)
+ROM_END
+
+ROM_START( megat3 ) /* Dallas DS1204V security key at U5 labeled 9255-20-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-20-01_u32-r0d", 0x000000, 0x080000, CRC(ac969296) SHA1(7e09e9141637339b83c21f2488560cdf8a460069) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-20-01_u38-r0n", 0x300000, 0x080000, CRC(c3b1739d) SHA1(a12d4d4205e71cf306c7e4a7b03af017096e2492) ) /* Location U38, 02/20/1996 09:32:34 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat3a ) /* Dallas DS1204V security key at U5 labeled 9255-20-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-20-01_u32-r0d", 0x000000, 0x080000, CRC(ac969296) SHA1(7e09e9141637339b83c21f2488560cdf8a460069) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-20-01_u38-r0f", 0x300000, 0x080000, CRC(85f48b91) SHA1(7a38644ac7ee55a254c037122af919fb268744a1) ) /* Location U38, 10/27/1995 14:23:00 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat3ca ) /* Dallas DS1204V security key at U5 labeled 9255-20-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-20-01_u32-r0a", 0x000000, 0x080000, CRC(69110f8f) SHA1(253487f0b4a82072efb7c70bebf953ea1c41d0d8) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-20-06_u38-r0n", 0x300000, 0x080000, CRC(f9ff003a) SHA1(6c32098593c444785de2deca0f8748042980d84d) ) /* Location U38, 02/20/1996 09:24:17 - California version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat3cb ) /* Dallas DS1204V security key at U5 labeled 9255-20-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-20-01_u32-r0d", 0x000000, 0x080000, CRC(ac969296) SHA1(7e09e9141637339b83c21f2488560cdf8a460069) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-20-06_u38-r0d", 0x300000, 0x080000, CRC(c40b3a57) SHA1(7a13172b94188c5cba32622016a05eb904714a86) ) /* Location U38, 07/24/1995 12:05:34 - California version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat3nj ) /* Dallas DS1204V security key at U5 labeled 9255-20-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-20-01_u32-r0d", 0x000000, 0x080000, CRC(ac969296) SHA1(7e09e9141637339b83c21f2488560cdf8a460069) ) /* Location U32 */
+ ROM_RELOAD( 0x080000, 0x080000)
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-20-07_u38-r0g", 0x300000, 0x080000, CRC(0ac673e7) SHA1(6b014366fcc5cdaa3d6a7e40da580d14def80174) ) /* Location U38, 11/17/1995 09:43:15 - New Jersey version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat3te ) /* Dallas DS1204V security key at U5 labeled 9255-30-01 U5-RO1 C1995 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-30-01_u32-r0", 0x000000, 0x100000, CRC(31ac0004) SHA1(4bec97a852a7dadb0ab4f193bc376ed149102082) ) /* Location U32 */
+ ROM_LOAD( "qs9255-01_u36-r0", 0x100000, 0x080000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000)
+ ROM_LOAD( "qs9255-01_u37-r0", 0x200000, 0x100000, CRC(273560bd) SHA1(5de8b9f5a7c4b676f131dd7d47ec71d35fa1755c) ) /* Location U37 */
+ ROM_LOAD( "9255-30-01_u38-r0e", 0x300000, 0x080000, CRC(52ca7dd8) SHA1(9f44f158d67d7443405b87a18fc89d9c88be1dea) ) /* Location U38, 02/15/1996 16:04:36 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4 ) /* Dallas DS1204V security key at U5 labeled 9255-40-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0", 0x000000, 0x100000, CRC(08b1b8fe) SHA1(c562f2e065d6d7f753f6fd1d0b8355b01cb089ec) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-40-01_u38-r0e", 0x300000, 0x80000, CRC(407c5e57) SHA1(c7c907b3fd6a8e64dcc6c71288505980862effce) ) /* Location U38, 07/22/1996 14:52:24 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x80000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4a ) /* Dallas DS1204V security key at U5 labeled 9255-40-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0", 0x000000, 0x100000, CRC(08b1b8fe) SHA1(c562f2e065d6d7f753f6fd1d0b8355b01cb089ec) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-40-01_u38-r0d", 0x300000, 0x80000, CRC(0d098424) SHA1(ef2810ccd636e69378fd353c8a95605274bb227f) ) /* Location U38, 07/08/1996 14:16:56 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x80000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4b ) /* Dallas DS1204V security key at U5 labeled 9255-40-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0", 0x000000, 0x100000, CRC(08b1b8fe) SHA1(c562f2e065d6d7f753f6fd1d0b8355b01cb089ec) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-40-01_u38-rob", 0x300000, 0x80000, CRC(0a16c846) SHA1(f0dcddb155f5e23a8dcf6bd8018cf6dc20c6bd34) ) /* Location U38, 05/03/1996 15:12 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x80000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4s ) /* Dallas DS1204V security key at U5 labeled 9255-40-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-41-01_u32-r0", 0x000000, 0x100000, CRC(f51ae565) SHA1(99c58063bfa24b4383c8b37a1eab670fa6e4c62c) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-41-01_u38-r0g", 0x300000, 0x80000, CRC(9c0a515a) SHA1(01b9761a8ddf95e32498ac204844144d9dc32012) ) /* Location U38, 12/10/1996 17:08:08 - Standard version */
+ ROM_RELOAD( 0x380000, 0x80000)
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(f31864ff) SHA1(ff44820379a350e7bd788ffb6926612b3483e114) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(ad4fddaa) SHA1(10c1575dcaa5ca4af5dc630d84f43a9ed1cb3ace) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4sn ) /* Dallas DS1204V security key at U5 labeled 9255-40-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0a", 0x000000, 0x100000, CRC(9ace8f52) SHA1(7c755c77cbfb234e1d6f531c90e4a8661275d464) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-41-07_u38-r0g", 0x300000, 0x80000, CRC(71eac4d4) SHA1(73b9ed876f0af94bbd88503921a2b4f26bcfd397) ) /* Location U38, 02/11/1997 11:59:41 - New Jersey version */
+ ROM_RELOAD( 0x380000, 0x80000)
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1225Y nv ram
+ ROM_LOAD( "mt4sn_ds1225y.u31", 0x0000, 0x8000, CRC(8d2a97e7) SHA1(7cb01d9499fed1674da6a04a11ed1cef0a39b3c0) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4te ) /* Dallas DS1204V security key at U5 labeled 9255-50-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0", 0x000000, 0x100000, CRC(08b1b8fe) SHA1(c562f2e065d6d7f753f6fd1d0b8355b01cb089ec) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-50-01_u38-r0d", 0x300000, 0x080000, CRC(124d5b84) SHA1(3c2117f56d0dc406bfb508989729e36781e215a4) ) /* Location U38, 07/02/1996 14:41:59 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000 )
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1644 nv ram
+ ROM_LOAD( "mt4te_ds1644.u31", 0x00000, 0x8000, CRC(d9485491) SHA1(c602bf954fe8b06f81b0f5002246e8fa89237705) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4tea ) /* Dallas DS1204V security key at U5 labeled 9255-50-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-40-01_u32-r0", 0x000000, 0x100000, CRC(08b1b8fe) SHA1(c562f2e065d6d7f753f6fd1d0b8355b01cb089ec) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-50-01_u38-r0a", 0x300000, 0x080000, CRC(abf187a5) SHA1(d4d2327b4564f3cafa2640499f8c6ae818ed04b8) ) /* Location U38, 06/06/1996 13:43:39 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000 )
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1644 nv ram
+ ROM_LOAD( "mt4tea_ds1644.u31", 0x00000, 0x8000, CRC(11e2c7ed) SHA1(99ee83410f7dbf5a259b11193829bb5c706d9fca) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4st ) /* Dallas DS1204V security key at U5 labeled 9255-51-01 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-41-01_u32-r0", 0x000000, 0x100000, CRC(f51ae565) SHA1(99c58063bfa24b4383c8b37a1eab670fa6e4c62c) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-51-01_u38-r0b", 0x300000, 0x080000, CRC(181a83cb) SHA1(b8f92ae76ebba3849db76b084f0ab7d82256d81a) ) /* Location U38, 12/10/1996 16:59:23 - Standard Version */
+ ROM_RELOAD( 0x380000, 0x080000 )
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1644 nv ram
+ ROM_LOAD( "mt4st_ds1644.u31", 0x00000, 0x8000, CRC(c6226d91) SHA1(20c9fa7ad135ac229c6bdf85b901629a0ecb8a81) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat4stg ) /* Dallas DS1204V security key at U5 labeled 9255-51-50 U5-B-RO1 C1996 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-41-01_u32-r0", 0x000000, 0x100000, CRC(f51ae565) SHA1(99c58063bfa24b4383c8b37a1eab670fa6e4c62c) ) /* Location U32 */
+ ROM_LOAD( "qs9255-02_u36-r0", 0x100000, 0x80000, CRC(57322328) SHA1(12bc604c9d34cde431ef7cd2aa33c7b12ac01833) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-02_u37-r0", 0x200000, 0x80000, CRC(f2e8bb4e) SHA1(5c5475b3c176a6aca9b2c6aa4aee422675d20bd1) ) /* Location U37 */
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-51-50_u38-r0a", 0x300000, 0x080000, CRC(f7c2914d) SHA1(5d05b8db5ca734f7b05c3e215c0ef5b917455537) ) /* Location U38, 11/18/1996 10:11:01 - Bi-Lingual GER/ENG Version */
+ ROM_RELOAD( 0x380000, 0x080000 )
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1644 nv ram
+ ROM_LOAD( "mt4stg_ds1644.u31", 0x00000, 0x8000, CRC(7f6f8e57) SHA1(d65f20ae19afc05b33d7605143b8362d6e955e89) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat5 ) /* Dallas DS1204V security key at U5 labeled 9255-60-01 U5-C-RO1 C1998 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-60-01_u32-r0", 0x000000, 0x100000, CRC(f8f7f48e) SHA1(1bebe1f8898c60b795a0f794ca9b79e03d2744e4) )
+ ROM_LOAD( "qs9255-05_u36-r0", 0x100000, 0x80000, CRC(0bed9e27) SHA1(1414385ce562b127e1ddeccc20ea4ff2a7098b7e) )
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-05_u37-r0", 0x200000, 0x80000, CRC(b713a1c5) SHA1(d6ccba2ea90fd0e2ecf15249514231eed54000c1) )
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-60-01_u38-r0i", 0x300000, 0x100000, CRC(82a4471d) SHA1(e66ab64bb7047e248f9edbf99eb83c480895dc68) ) /* Location U38, 09/26/1997 12:09:52 - Standard Version */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat5a ) /* Dallas DS1204V security key at U5 labeled 9255-60-01 U5-C-RO1 C1998 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-60-01_u32-r0", 0x000000, 0x100000, CRC(f8f7f48e) SHA1(1bebe1f8898c60b795a0f794ca9b79e03d2744e4) )
+ ROM_LOAD( "qs9255-05_u36-r0", 0x100000, 0x80000, CRC(0bed9e27) SHA1(1414385ce562b127e1ddeccc20ea4ff2a7098b7e) )
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-05_u37-r0", 0x200000, 0x80000, CRC(b713a1c5) SHA1(d6ccba2ea90fd0e2ecf15249514231eed54000c1) )
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-60-01_u38-r0c", 0x300000, 0x100000, BAD_DUMP CRC(1091e7fd) SHA1(3c31c178eb7bea0d2c7e839dc3ec549463092296) ) /* Location U38, 07/10/1997 16:49:56 - Standard Version */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat5nj ) /* Dallas DS1204V security key at U5 labeled 9255-60-01 U5-B-RO1 C1998 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-60-01_u32-r0", 0x000000, 0x100000, CRC(f8f7f48e) SHA1(1bebe1f8898c60b795a0f794ca9b79e03d2744e4) )
+ ROM_LOAD( "qs9255-05_u36-r0", 0x100000, 0x80000, CRC(0bed9e27) SHA1(1414385ce562b127e1ddeccc20ea4ff2a7098b7e) )
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-05_u37-r0", 0x200000, 0x80000, CRC(b713a1c5) SHA1(d6ccba2ea90fd0e2ecf15249514231eed54000c1) )
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-60-07_u38-r0n", 0x300000, 0x100000, CRC(c8163fe8) SHA1(94199b892ce9e5f543e10f3f59a9aeee4782923f) ) /* Location U38, 07/13/1998 15:19:55 - New Jersey version */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat5tg ) /* Dallas DS1204V security key at U5 labeled 9255-70-50 U5-C-RO1 C1998 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-70-50_u32-r0", 0x000000, 0x100000, CRC(f57e4d36) SHA1(c16587c95fa1abe2e7df37027deb2cfbadb27038) )
+ ROM_LOAD( "qs9255-05_u36-r0", 0x100000, 0x80000, CRC(0bed9e27) SHA1(1414385ce562b127e1ddeccc20ea4ff2a7098b7e) )
+ ROM_RELOAD( 0x180000, 0x80000)
+ ROM_LOAD( "qs9255-05_u37-r0", 0x200000, 0x80000, CRC(b713a1c5) SHA1(d6ccba2ea90fd0e2ecf15249514231eed54000c1) )
+ ROM_RELOAD( 0x280000, 0x80000)
+ ROM_LOAD( "9255-70-50_u38-r0d", 0x300000, 0x100000, CRC(044d123f) SHA1(d73df1f97f6da03fdee2ca3fda3845ec262a0f9a) ) /* Location U38, 10/29/1997 10:19:08 - Bi-Lingual GER/ENG Version */
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1644 nv ram
+ ROM_LOAD( "mt5tg_ds1644.u31", 0x00000, 0x8000, CRC(a054bb32) SHA1(4efc19cb0a671dfe9249ce85d31f6bd633f2a237) ) /* No actual label, so use a unique name for this set */
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+ROM_START( megat6 ) /* Dallas DS1204V security key at U5 labeled 9255-80 U5-B-RO1 C1998 MII */
+ ROM_REGION( 0x400000, "maincpu", 0 )
+ ROM_LOAD( "9255-60-01_u32-r0", 0x000000, 0x100000, CRC(f8f7f48e) SHA1(1bebe1f8898c60b795a0f794ca9b79e03d2744e4) ) /* Location U32 */
+ ROM_LOAD( "qs9255-08_u36-r0", 0x100000, 0x080000, CRC(800f5a1f) SHA1(4d3ee6fb896d6452aab1f279a3ee878284bd1acc) ) /* Location U36 */
+ ROM_RELOAD( 0x180000, 0x080000 )
+ ROM_LOAD( "qs9255-08_u37-r0", 0x200000, 0x100000, CRC(5ba01949) SHA1(1598949ea18d07bbc78af0ddd279a687173c1229) ) /* Location U37 */
+ ROM_LOAD( "9255-80-01_u38-r0a", 0x300000, 0x100000, CRC(3df6b840) SHA1(31ba1ac04eed3e76cdf637507dedcc5f7e22c919) ) /* Location U38, 08/07/1998 15:54:23 - Standard Version */
+
+ ROM_REGION( 0x8000, "nvram", 0 ) // DS1230 nv ram
+ ROM_LOAD( "ds1230y.u31", 0x00000, 0x8000, CRC(51b6da5c) SHA1(1d53af89d7867bb48b9d46feff6fc3b7e8e80ac8) )
+
+ ROM_REGION( 0x1000, "user2", 0 ) // PALs
+ ROM_LOAD( "sc3943.u20", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) )
+ ROM_LOAD( "sc3944-0a.u19", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) )
+ ROM_LOAD( "sc3980.u40", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) )
+ ROM_LOAD( "sc3981-0a.u51", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) )
+ROM_END
+
+static DRIVER_INIT(pitbossm)
+{
+ static const UINT8 pitbossm_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 pitbossm_ds1204_nvram[16] =
+ { 0x16, 0x90, 0xa0, 0x52, 0xd8, 0x6c, 0x12, 0xaf, 0x36, 0x22, 0x61, 0x35, 0x0d, 0x58, 0x0c, 0x00 };
+
+ ds1204_init(machine, pitbossm_ds1204_key, pitbossm_ds1204_nvram);
+
+};
+
+static DRIVER_INIT(pbst30)
+{
+ static const UINT8 pbst30b_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 pbst30b_ds1204_nvram[16] =
+ { 0x3e, 0x9a, 0x3c, 0x3f, 0x1d, 0x51, 0x72, 0xc9, 0x28, 0x2c, 0x1d, 0x2d, 0x0e, 0x56, 0x41, 0x00 };
+
+ ds1204_init(machine, pbst30b_ds1204_key, pbst30b_ds1204_nvram);
+
+};
+
+static DRIVER_INIT(pbst30b)
+{
+ static const UINT8 pbst30b_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 pbst30b_ds1204_nvram[16] =
+ { 0xa9, 0xdb, 0x41, 0xf8, 0xe4, 0x42, 0x20, 0x6e, 0xde, 0xaf, 0x4f, 0x046, 0x3d, 0x55, 0x44, 0x00 };
+
+ ds1204_init(machine, pbst30b_ds1204_key, pbst30b_ds1204_nvram);
+
+};
+
+static DRIVER_INIT(megat2)
+{
+ static const UINT8 pitbosmt_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 pitbosmt_ds1204_nvram[16] =
+ { 0x00, 0xfe, 0x03, 0x03, 0x08, 0x00, 0xa2, 0x03, 0x4b, 0x07, 0x00, 0xe6, 0x02, 0xd3, 0x05, 0x00 };
+
+ ds1204_init(machine, pitbosmt_ds1204_key, pitbosmt_ds1204_nvram);
+
+};
+
+static DRIVER_INIT(megat3)
+{
+ static const UINT8 megat3_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 megat3_ds1204_nvram[16] =
+ { 0x51, 0xa1, 0xc0, 0x7c, 0x27, 0x6e, 0x51, 0xb9, 0xa5, 0xb2, 0x27, 0x0c, 0xb9, 0x88, 0x82, 0x2c };
+
+ ds1204_init(machine, megat3_ds1204_key, megat3_ds1204_nvram);
+
+};
+
+static DRIVER_INIT(megat3te)
+{
+ static const UINT8 megat3_ds1204_key[8] =
+ { 0xf0, 0xaa, 0x0f, 0x0f, 0x55, 0x55, 0xff, 0xab };
+
+ static const UINT8 megat3_ds1204_nvram[16] =
+ { 0x99, 0x53, 0xfc, 0x29, 0x3a, 0x95, 0x8b, 0x58, 0xca, 0xca, 0x00, 0xc2, 0x30, 0x62, 0x0b, 0x96 };
+
+ ds1204_init(machine, megat3_ds1204_key, megat3_ds1204_nvram);
+
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0xfff8, 0xffff, FUNC(meritm_ds1644_r), FUNC(meritm_ds1644_w) );
+
+};
+
+static DRIVER_INIT(megat4)
+{
+ static const UINT8 megat4_ds1204_nvram[16] =
+ { 0xe3, 0x08, 0x39, 0xd8, 0x4c, 0xbb, 0xc4, 0xf8, 0xf0, 0xe2, 0xd8, 0x77, 0xa8, 0x3d, 0x95, 0x02 };
+
+ ds1204_init(machine, 0, megat4_ds1204_nvram);
+}
+
+static DRIVER_INIT(megat4te)
+{
+ static const UINT8 megat4te_ds1204_nvram[16] =
+ { 0x05, 0x21, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
+
+ ds1204_init(machine, 0, megat4te_ds1204_nvram);
+
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0xfff8, 0xffff, FUNC(meritm_ds1644_r), FUNC(meritm_ds1644_w) );
+
+};
+
+static DRIVER_INIT(megat4st)
+{
+ static const UINT8 megat4te_ds1204_nvram[16] =
+ { 0x11, 0x04, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
+
+ ds1204_init(machine, 0, megat4te_ds1204_nvram);
+
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0xfff8, 0xffff, FUNC(meritm_ds1644_r), FUNC(meritm_ds1644_w) );
+
+};
+
+static DRIVER_INIT(megat5)
+{
+ static const UINT8 megat5_ds1204_nvram[16] =
+ { 0x06, 0x23, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
+
+ ds1204_init(machine, 0, megat5_ds1204_nvram);
+
+}
+
+static DRIVER_INIT(megat5t)
+{
+ static const UINT8 megat5_ds1204_nvram[16] =
+ { 0x08, 0x22, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
+
+ ds1204_init(machine, 0, megat5_ds1204_nvram);
+
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0xfff8, 0xffff, FUNC(meritm_ds1644_r), FUNC(meritm_ds1644_w) );
+
+}
+
+static DRIVER_INIT(megat6)
+{
+ static const UINT8 megat6_ds1204_nvram[16] =
+ { 0x07, 0x15, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
+
+ ds1204_init(machine, 0, megat6_ds1204_nvram);
+
+}
+
+/* CRT 250 */
+GAME( 1988, pitboss2, 0, meritm_crt250, meritm_crt250, 0, ROT0, "Merit", "Pit Boss II", GAME_IMPERFECT_GRAPHICS )
+GAME( 1988, spitboss, 0, meritm_crt250, meritm_crt250, 0, ROT0, "Merit", "Super Pit Boss", GAME_IMPERFECT_GRAPHICS )
+GAME( 1990, pitbosss, 0, meritm_crt250, meritm_crt250, 0, ROT0, "Merit", "Pit Boss Superstar (9221-10-00B)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1990, pitbosssa, pitbosss, meritm_crt250, meritm_crt250, 0, ROT0, "Merit", "Pit Boss Superstar (9221-10-00A)", GAME_IMPERFECT_GRAPHICS )
+
+/* CRT 250 + CRT 254 + CRT 256 */
+GAME( 1994, pbst30, 0, meritm_crt250_crt252_crt258, pbst30, pbst30, ROT0, "Merit", "Pit Boss Supertouch 30 (9234-10-01)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1993, pbst30b, pbst30, meritm_crt250_crt252_crt258, pbst30, pbst30b, ROT0, "Merit", "Pit Boss Supertouch 30 (9234-00-01)", GAME_IMPERFECT_GRAPHICS )
+
+/* CRT 250 + CRT 254 + CRT 256 */
+GAME( 1994, pitbossm, 0, meritm_crt250_questions, pitbossm, pitbossm, ROT0, "Merit", "Pit Boss Megastar (9244-00-01)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1994, pitbossma, pitbossm, meritm_crt250_questions, pitbossa, 0, ROT0, "Merit", "Pit Boss Megastar (9243-00-01)", GAME_IMPERFECT_GRAPHICS )
+
+/* CRT 260 */
+GAME( 1994, megat2, 0, meritm_crt260, meritm_crt260, megat2, ROT0, "Merit", "Pit Boss Megatouch II (9255-10-01 ROE, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1994, megat2a , megat2, meritm_crt260, meritm_crt260, megat2, ROT0, "Merit", "Pit Boss Megatouch II (9255-10-01 ROD, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1994, megat2ca, megat2, meritm_crt260, meritm_crt260, megat2, ROT0, "Merit", "Pit Boss Megatouch II (9255-10-06 ROG, California version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat3, 0, meritm_crt260, meritm_crt260, megat3, ROT0, "Merit", "Megatouch III (9255-20-01 RON, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1995, megat3a, megat3, meritm_crt260, meritm_crt260, megat3, ROT0, "Merit", "Megatouch III (9255-20-01 ROF, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat3ca, megat3, meritm_crt260, meritm_crt260, megat3, ROT0, "Merit", "Megatouch III (9255-20-06 RON, California version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1995, megat3cb, megat3, meritm_crt260, meritm_crt260, megat3, ROT0, "Merit", "Megatouch III (9255-20-06 ROD, California version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1995, megat3nj, megat3, meritm_crt260, meritm_crt260, megat3, ROT0, "Merit", "Megatouch III (9255-20-07 ROG, New Jersey version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat3te, megat3, meritm_crt260, meritm_crt260, megat3te, ROT0, "Merit", "Megatouch III Tournament Edition (9255-30-01 ROE, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4, 0, meritm_crt260, meritm_crt260, megat4, ROT0, "Merit", "Megatouch IV (9255-40-01 ROE, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4a, megat4, meritm_crt260, meritm_crt260, megat4, ROT0, "Merit", "Megatouch IV (9255-40-01 ROD, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4b, megat4, meritm_crt260, meritm_crt260, megat4, ROT0, "Merit", "Megatouch IV (9255-40-01 ROB, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4s, megat4, meritm_crt260, meritm_crt260, megat4, ROT0, "Merit", "Super Megatouch IV (9255-41-01 ROG, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4sn, megat4, meritm_crt260, meritm_crt260, megat4, ROT0, "Merit", "Super Megatouch IV (9255-41-07 ROG, New Jersey version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4te, megat4, meritm_crt260, meritm_crt260, megat4te, ROT0, "Merit", "Megatouch IV Tournament Edition (9255-50-01 ROD, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4tea, megat4, meritm_crt260, meritm_crt260, megat4te, ROT0, "Merit", "Megatouch IV Tournament Edition (9255-50-01 ROA, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4st, megat4, meritm_crt260, meritm_crt260, megat4st, ROT0, "Merit", "Super Megatouch IV Tournament Edition (9255-51-01 ROB, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1996, megat4stg, megat4, meritm_crt260, meritm_crt260, megat4st, ROT0, "Merit", "Super Megatouch IV Turnier Version (9255-51-50 ROA, Bi-Lingual GER/ENG version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1997, megat5, 0, meritm_crt260, meritm_crt260, megat5, ROT0, "Merit", "Megatouch 5 (9255-60-01 ROI, Standard version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1997, megat5a, megat5, meritm_crt260, meritm_crt260, megat5, ROT0, "Merit", "Megatouch 5 (9255-60-01 ROC, Standard version)", GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING )
+GAME( 1998, megat5nj, megat5, meritm_crt260, meritm_crt260, megat5, ROT0, "Merit", "Megatouch 5 (9255-60-07 RON, New Jersey version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1998, megat5tg, megat5, meritm_crt260, meritm_crt260, megat5t, ROT0, "Merit", "Megatouch 5 Turnier Version (9255-70-50 ROD, Bi-Lingual GER/ENG version)", GAME_IMPERFECT_GRAPHICS )
+GAME( 1998, megat6, 0, meritm_crt260, meritm_crt260, megat6, ROT0, "Merit", "Megatouch 6 (9255-80-01 ROA, Standard version)", GAME_IMPERFECT_GRAPHICS )