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-rw-r--r--src/mame/drivers/glass.cpp422
1 files changed, 422 insertions, 0 deletions
diff --git a/src/mame/drivers/glass.cpp b/src/mame/drivers/glass.cpp
new file mode 100644
index 00000000000..b4e30ce200a
--- /dev/null
+++ b/src/mame/drivers/glass.cpp
@@ -0,0 +1,422 @@
+// license:BSD-3-Clause
+// copyright-holders:Manuel Abadia
+/***************************************************************************
+
+Glass (c) 1993 Gaelco (Developed by OMK. Produced by Gaelco)
+
+Driver by Manuel Abadia <emumanu+mame@gmail.com>
+
+The DS5002FP has up to 128KB undumped gameplay code making the game unplayable :_(
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/m68000/m68000.h"
+#include "sound/okim6295.h"
+#include "includes/glass.h"
+
+WRITE16_MEMBER(glass_state::clr_int_w)
+{
+ m_cause_interrupt = 1;
+}
+
+INTERRUPT_GEN_MEMBER(glass_state::glass_interrupt)
+{
+ if (m_cause_interrupt)
+ {
+ device.execute().set_input_line(6, HOLD_LINE);
+ m_cause_interrupt = 0;
+ }
+}
+
+
+static const gfx_layout glass_tilelayout16 =
+{
+ 16,16, /* 16x16 tiles */
+ 0x100000/32, /* number of tiles */
+ 4, /* 4 bpp */
+ { 3*0x100000*8, 2*0x100000*8, 1*0x100000*8, 0*0x100000*8 },
+ {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 16*8+0, 16*8+1, 16*8+2, 16*8+3, 16*8+4, 16*8+5, 16*8+6, 16*8+7
+ },
+ {
+ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
+ 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8
+ },
+ 32*8
+};
+
+static GFXDECODE_START( glass )
+ GFXDECODE_ENTRY( "gfx1", 0x000000, glass_tilelayout16, 0, 64 )
+GFXDECODE_END
+
+
+WRITE16_MEMBER(glass_state::OKIM6295_bankswitch_w)
+{
+ UINT8 *RAM = memregion("oki")->base();
+
+ if (ACCESSING_BITS_0_7)
+ memcpy(&RAM[0x30000], &RAM[0x40000 + (data & 0x0f) * 0x10000], 0x10000);
+}
+
+WRITE16_MEMBER(glass_state::glass_coin_w)
+{
+ switch (offset >> 3)
+ {
+ case 0x00: /* Coin Lockouts */
+ case 0x01:
+ coin_lockout_w(machine(), (offset >> 3) & 0x01, ~data & 0x01);
+ break;
+ case 0x02: /* Coin Counters */
+ case 0x03:
+ coin_counter_w(machine(), (offset >> 3) & 0x01, data & 0x01);
+ break;
+ case 0x04: /* Sound Muting (if bit 0 == 1, sound output stream = 0) */
+ break;
+ }
+}
+
+static ADDRESS_MAP_START( glass_map, AS_PROGRAM, 16, glass_state )
+ AM_RANGE(0x000000, 0x07ffff) AM_ROM /* ROM */
+ AM_RANGE(0x100000, 0x101fff) AM_RAM_WRITE(glass_vram_w) AM_SHARE("videoram") /* Video RAM */
+ AM_RANGE(0x102000, 0x102fff) AM_RAM /* Extra Video RAM */
+ AM_RANGE(0x108000, 0x108007) AM_WRITEONLY AM_SHARE("vregs") /* Video Registers */
+ AM_RANGE(0x108008, 0x108009) AM_WRITE(clr_int_w) /* CLR INT Video */
+ AM_RANGE(0x200000, 0x2007ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette") /* Palette */
+ AM_RANGE(0x440000, 0x440fff) AM_RAM AM_SHARE("spriteram") /* Sprite RAM */
+ AM_RANGE(0x700000, 0x700001) AM_READ_PORT("DSW2")
+ AM_RANGE(0x700002, 0x700003) AM_READ_PORT("DSW1")
+ AM_RANGE(0x700004, 0x700005) AM_READ_PORT("P1")
+ AM_RANGE(0x700006, 0x700007) AM_READ_PORT("P2")
+ AM_RANGE(0x700008, 0x700009) AM_WRITE(glass_blitter_w) /* serial blitter */
+ AM_RANGE(0x70000c, 0x70000d) AM_WRITE(OKIM6295_bankswitch_w) /* OKI6295 bankswitch */
+ AM_RANGE(0x70000e, 0x70000f) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0x00ff) /* OKI6295 status register */
+ AM_RANGE(0x70000a, 0x70004b) AM_WRITE(glass_coin_w) /* Coin Counters/Lockout */
+ AM_RANGE(0xfec000, 0xfeffff) AM_RAM AM_SHARE("mainram") /* Work RAM (partially shared with DS5002FP) */
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( glass )
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:6,7,8")
+ PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 3C_4C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:3,4,5")
+ PORT_DIPSETTING( 0x10, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x18, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x28, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 4C_3C ) )
+ PORT_DIPSETTING( 0x38, DEF_STR( 1C_1C ) )
+ PORT_DIPNAME( 0x40, 0x40, "Credit configuration" ) PORT_DIPLOCATION("SW1:2")
+ PORT_DIPSETTING( 0x40, "Start 1C" )
+ PORT_DIPSETTING( 0x00, "Start 2C" )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Free_Play ) ) PORT_DIPLOCATION("SW1:1")
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:7,8")
+ PORT_DIPSETTING( 0x02, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) )
+ PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:5,6")
+ PORT_DIPSETTING( 0x0c, "3" )
+ PORT_DIPSETTING( 0x08, "1" )
+ PORT_DIPSETTING( 0x04, "2" )
+ PORT_DIPSETTING( 0x00, "4" )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Version ) ) PORT_DIPLOCATION("SW2:4")
+ PORT_DIPSETTING( 0x10, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x00, "Light" )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:3")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPUNUSED_DIPLOC( 0x40, 0x40, "SW2:2" ) /* Listed as "Unused" */
+ PORT_SERVICE_DIPLOC( 0x80, IP_ACTIVE_LOW, "SW2:1" )
+
+ PORT_START("P1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )
+
+ PORT_START("P2")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
+ PORT_BIT( 0xfc00, IP_ACTIVE_LOW, IPT_UNKNOWN )
+INPUT_PORTS_END
+
+
+
+void glass_state::machine_start()
+{
+ save_item(NAME(m_cause_interrupt));
+ save_item(NAME(m_current_bit));
+ save_item(NAME(m_current_command));
+ save_item(NAME(m_blitter_serial_buffer));
+}
+
+void glass_state::machine_reset()
+{
+ int i;
+
+ m_cause_interrupt = 1;
+ m_current_bit = 0;
+ m_current_command = 0;
+
+ for (i = 0; i < 5; i++)
+ m_blitter_serial_buffer[i] = 0;
+}
+
+static MACHINE_CONFIG_START( glass, glass_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000,24000000/2) /* 12 MHz (M680000 P12) */
+ MCFG_CPU_PROGRAM_MAP(glass_map)
+ MCFG_CPU_VBLANK_INT_DRIVER("screen", glass_state, glass_interrupt)
+
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ MCFG_SCREEN_SIZE(32*16, 32*16)
+ MCFG_SCREEN_VISIBLE_AREA(0, 368-1, 16, 256-1)
+ MCFG_SCREEN_UPDATE_DRIVER(glass_state, screen_update_glass)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", glass)
+ MCFG_PALETTE_ADD("palette", 1024)
+ MCFG_PALETTE_FORMAT(xBBBBBGGGGGRRRRR)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_CONFIG_END
+
+ROM_START( glass ) /* Version 1.1 */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 code */
+ ROM_LOAD16_BYTE( "1.c23", 0x000000, 0x040000, CRC(aeebd4ed) SHA1(04759dc146dff0fc74b78d70e79dfaebe68328f9) )
+ ROM_LOAD16_BYTE( "2.c22", 0x000001, 0x040000, CRC(165e2e01) SHA1(180a2e2b5151f2321d85ac23eff7fbc9f52023a5) )
+
+ ROM_REGION( 0x400000, "gfx1", ROMREGION_ERASE00 ) /* Graphics */
+ /* 0x000000-0x3fffff filled in later in the DRIVER_INIT */
+
+ ROM_REGION( 0x400000, "gfx2", 0 ) /* Graphics */
+ ROM_LOAD( "h13.bin", 0x000000, 0x200000, CRC(13ab7f31) SHA1(468424f74d6cccd1b445a9f20e2d24bc46d61ed6) )
+ ROM_LOAD( "h11.bin", 0x200000, 0x200000, CRC(c6ac41c8) SHA1(22408ef1e35c66d0fba0c72972c46fad891d1193) )
+
+ ROM_REGION( 0x100000, "gfx3", 0 ) /* 16 bitmaps (320x200, indexed colors) */
+ ROM_LOAD( "h9.bin", 0x000000, 0x100000, CRC(b9492557) SHA1(3f5c0d696d65e1cd492763dfa749c813dd56a9bf) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* ADPCM samples - sound chip is OKIM6295 */
+ ROM_LOAD( "c1.bin", 0x000000, 0x100000, CRC(d9f075a2) SHA1(31a7a677861f39d512e9d1f51925c689e481159a) )
+ /* 0x00000-0x2ffff is fixed, 0x30000-0x3ffff is bank switched from all the ROMs */
+ ROM_RELOAD( 0x040000, 0x100000 )
+ROM_END
+
+ROM_START( glass10 ) /* Version 1.0 */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 code */
+ ROM_LOAD16_BYTE( "c23.bin", 0x000000, 0x040000, CRC(688cdf33) SHA1(b59dcc3fc15f72037692b745927b110e97d8282e) )
+ ROM_LOAD16_BYTE( "c22.bin", 0x000001, 0x040000, CRC(ab17c992) SHA1(1509b5b4bbfb4e022e0ab6fbbc0ffc070adfa531) )
+
+ ROM_REGION( 0x400000, "gfx1", ROMREGION_ERASE00 ) /* Graphics */
+ /* 0x000000-0x3fffff filled in later in the DRIVER_INIT */
+
+ ROM_REGION( 0x400000, "gfx2", 0 ) /* Graphics */
+ ROM_LOAD( "h13.bin", 0x000000, 0x200000, CRC(13ab7f31) SHA1(468424f74d6cccd1b445a9f20e2d24bc46d61ed6) )
+ ROM_LOAD( "h11.bin", 0x200000, 0x200000, CRC(c6ac41c8) SHA1(22408ef1e35c66d0fba0c72972c46fad891d1193) )
+
+ ROM_REGION( 0x100000, "gfx3", 0 ) /* 16 bitmaps (320x200, indexed colors) */
+ ROM_LOAD( "h9.bin", 0x000000, 0x100000, CRC(b9492557) SHA1(3f5c0d696d65e1cd492763dfa749c813dd56a9bf) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* ADPCM samples - sound chip is OKIM6295 */
+ ROM_LOAD( "c1.bin", 0x000000, 0x100000, CRC(d9f075a2) SHA1(31a7a677861f39d512e9d1f51925c689e481159a) )
+ /* 0x00000-0x2ffff is fixed, 0x30000-0x3ffff is bank switched from all the ROMs */
+ ROM_RELOAD( 0x040000, 0x100000 )
+ROM_END
+
+ROM_START( glassbrk ) /* Title screen shows "GLASS" and under that "Break Edition" on a real PCB */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 code */
+ ROM_LOAD16_BYTE( "spl-c23.bin", 0x000000, 0x040000, CRC(c1393bea) SHA1(a5f877ba38305a7b49fa3c96b9344cbf71e8c9ef) )
+ ROM_LOAD16_BYTE( "spl-c22.bin", 0x000001, 0x040000, CRC(0d6fa33e) SHA1(37e9258ef7e108d034c80abc8e5e5ab6dacf0a61) )
+
+ ROM_REGION( 0x400000, "gfx1", ROMREGION_ERASE00 ) /* Graphics */
+ /* 0x000000-0x3fffff filled in later in the DRIVER_INIT */
+
+ ROM_REGION( 0x400000, "gfx2", 0 ) /* Graphics */
+ ROM_LOAD( "h13.bin", 0x000000, 0x200000, CRC(13ab7f31) SHA1(468424f74d6cccd1b445a9f20e2d24bc46d61ed6) )
+ ROM_LOAD( "h11.bin", 0x200000, 0x200000, CRC(c6ac41c8) SHA1(22408ef1e35c66d0fba0c72972c46fad891d1193) )
+
+ ROM_REGION( 0x100000, "gfx3", 0 ) /* 16 bitmaps (320x200, indexed colors) */
+ ROM_LOAD( "h9.bin", 0x000000, 0x100000, CRC(b9492557) SHA1(3f5c0d696d65e1cd492763dfa749c813dd56a9bf) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* ADPCM samples - sound chip is OKIM6295 */
+ ROM_LOAD( "c1.bin", 0x000000, 0x100000, CRC(d9f075a2) SHA1(31a7a677861f39d512e9d1f51925c689e481159a) )
+ /* 0x00000-0x2ffff is fixed, 0x30000-0x3ffff is bank switched from all the ROMs */
+ ROM_RELOAD( 0x040000, 0x100000 )
+ROM_END
+
+/***************************************************************************
+
+ Split even/odd bytes from ROMs in 16 bit mode to different memory areas
+
+***************************************************************************/
+
+void glass_state::glass_ROM16_split_gfx( const char *src_reg, const char *dst_reg, int start, int length, int dest1, int dest2 )
+{
+ int i;
+
+ /* get a pointer to the source data */
+ UINT8 *src = (UINT8 *)memregion(src_reg)->base();
+
+ /* get a pointer to the destination data */
+ UINT8 *dst = (UINT8 *)memregion(dst_reg)->base();
+
+ /* fill destination areas with the proper data */
+ for (i = 0; i < length / 2; i++)
+ {
+ dst[dest1 + i] = src[start + i * 2 + 0];
+ dst[dest2 + i] = src[start + i * 2 + 1];
+ }
+}
+
+/* How does the protection work?
+
+ We know in World Rally it shares the whole of main RAM with the Dallas, with subtle reads and writes / values being checked.. so I guess this will be similar at least
+ and thus very hard to figure out if done properly
+
+ */
+
+READ16_MEMBER( glass_state::glass_mainram_r )
+{
+ UINT16 ret = m_mainram[offset];
+ int pc = space.device().safe_pc();
+
+ if (offset == (0xfede96 - 0xfec000)>>1)
+ {
+ // this address seems important, the game will abort with 'power failure' depending on some reads, presumably refering to the power to the battery
+
+ // there are also various code segments like the one below
+ /*
+ start:
+ tst.b this address
+ bne end
+ tst.b $fede1d.l
+ nop << why?
+ bne start
+ end:
+ */
+ return 0x0000;
+ //printf("%06x read %06x - %04x %04x\n", pc , (offset*2 + 0xfec000), ret, mem_mask);
+ }
+ else if (offset == (0xfede1c - 0xfec000)>>1)
+ {
+ // related to above, could also be some command ack?
+ logerror("%06x read %06x - %04x %04x\n", pc, (offset*2 + 0xfec000), ret, mem_mask);
+ }
+ else if (offset == (0xfede26 - 0xfec000)>>1)
+ {
+ logerror("%06x read %06x - %04x %04x\n", pc, (offset*2 + 0xfec000), ret, mem_mask);
+ }
+ return ret;
+}
+
+WRITE16_MEMBER( glass_state::glass_mainram_w )
+{
+ int pc = space.device().safe_pc();
+
+ COMBINE_DATA(&m_mainram[offset]);
+
+ if (offset == (0xfede02 - 0xfec000)>>1)
+ {
+// printf("%06x write %06x - %04x %04x\n", pc, (offset*2 + 0xfec000), data, mem_mask);
+ // several checks write here then expect it to appear mirrored, might be some kind of command + command ack
+ if (mem_mask & 0xff00) // sometimes mask 0xff00, but not in cases which poll for change
+ {
+ mem_mask = 0x00ff;
+ data >>=8;
+ COMBINE_DATA(&m_mainram[offset]);
+ }
+ return;
+ }
+ else if (offset == (0xfede1c - 0xfec000)>>1)
+ {
+ // see notes about 0xfede96 in read, this address seems important
+ logerror("%06x write %06x - %04x %04x\n", pc, (offset*2 + 0xfec000), data, mem_mask);
+ if (mem_mask == 0x00ff)
+ {
+ int realdata = data;
+
+ // don't store the bits written, game checks they get cleared?
+ data &= 0xff00;
+ COMBINE_DATA(&m_mainram[offset]);
+
+ // a command?
+ if (realdata == 0x0002)
+ {
+ // there is a check on address 0xfede26 just after writing 0002 here..
+ offset = (0xfede26 - 0xfec000) >> 1;
+ data = 0xff00;
+ mem_mask = 0xff00;
+ COMBINE_DATA(&m_mainram[offset]);
+ }
+ }
+ return;
+ }
+
+}
+
+
+DRIVER_INIT_MEMBER(glass_state,glass)
+{
+ /*
+ For "gfx2" we have this memory map:
+ 0x000000-0x1fffff ROM H13
+ 0x200000-0x3fffff ROM H11
+
+ and we are going to construct this one for "gfx1":
+ 0x000000-0x0fffff ROM H13 even bytes
+ 0x100000-0x1fffff ROM H13 odd bytes
+ 0x200000-0x2fffff ROM H11 even bytes
+ 0x300000-0x3fffff ROM H11 odd bytes
+ */
+
+ /* split ROM H13 */
+ glass_ROM16_split_gfx("gfx2", "gfx1", 0x0000000, 0x0200000, 0x0000000, 0x0100000);
+
+ /* split ROM H11 */
+ glass_ROM16_split_gfx("gfx2", "gfx1", 0x0200000, 0x0200000, 0x0200000, 0x0300000);
+
+ /* install custom handler over RAM for protection */
+ m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xfec000, 0xfeffff, read16_delegate(FUNC(glass_state::glass_mainram_r), this), write16_delegate(FUNC(glass_state::glass_mainram_w),this));
+
+}
+
+GAME( 1993, glass, 0, glass, glass, glass_state, glass, ROT0, "OMK / Gaelco", "Glass (Ver 1.1)", MACHINE_UNEMULATED_PROTECTION | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
+GAME( 1993, glass10, glass, glass, glass, glass_state, glass, ROT0, "OMK / Gaelco", "Glass (Ver 1.0)", MACHINE_UNEMULATED_PROTECTION | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
+GAME( 1993, glassbrk, glass, glass, glass, glass_state, glass, ROT0, "OMK / Gaelco", "Glass (Ver 1.0, Break Edition)", MACHINE_UNEMULATED_PROTECTION | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )