Bubble Pong Pong Memory Map

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Memory Map

The following is a memory map that was generated based on the MAME source code (.180). This information is only as accurate as the MAME driver is. If you see any errors, please let me know what that error is.

The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.

Bubble Pong Pong (Top Ltd., 1996)

Memory Area:master_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0xBFFF	16384	ROM Bank	bank1
0xC000-0xDCFF	7424	RAM, Shared	videoram
0xDD00-0xDFFF	768	RAM, Shared	objectram
0xE000-0xF7FF	6144	RAM, Shared	share1
0xF800-0xF9FF	512	RAM Device Write, Shared	palette, palette_device, write, palette
0xFA00	1	Write	bublbobl_sound_command_w
0xFA03	1	Write NOP	(// sound cpu reset)
0xFA80	1	Write NOP
0xFB40	1	Write	bublbobl_bankswitch_w
0xFC00-0xFCFF	256	RAM
0xFD00-0xFDFF	256	RAM	(// ???)
0xFE00-0xFE03	4	RAM	(// ???)
0xFE80-0xFE83	4	RAM	(// ???)
0xFF00	1	Read Port	DSW1
0xFF01	1	Read Port	DSW2
0xFF02	1	Read Port	P1
0xFF03	1	Read Port	P2
0xFF94	1	Write NOP	(// ???)
0xFF98	1	Write NOP	(// ???)

Memory Area:slave_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x9000-0x9FFF	4096	ROM Bank	bank2 (// ROM data for the background palette ram)
0xA000-0xAFFF	4096	ROM Bank	bank3 (// ROM data for the background palette ram)
0xB000-0xB1FF	512	ROM	(// banked ???)
0xC000-0xC1FF	512	RAM Device Write, Shared	bgpalette, palette_device, write, bgpalette
0xC800-0xCFFF	2048	RAM	(// main ???)
0xD000	1	Write	missb2_bg_bank_w
0xD002	1	Write NOP
0xD003	1	RAM, Shared	bgvram
0xE000-0xF7FF	6144	RAM, Shared	share1

Memory Area:sound_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x8FFF	4096	RAM
0x9000	1	Device Read/Write	oki, okim6295_device, read, write
0xA000-0xA001	2	Device Read/Write	ymsnd, ym3526_device, read, write
0xB000	1	Device Read, Write NOP	soundlatch, generic_latch_8_device, read, (// message for main cpu)
0xB001	1	Read NOP, Write	bublbobl_sh_nmi_enable_w (// bit 0: message pending for main cpu, bit 1: message pending for sound cpu)
0xB002	1	Write	bublbobl_sh_nmi_disable_w
0xE000-0xEFFF	4096	ROM	(// space for diagnostic ROM?)

ROM Map for this game

This is the ROM map for the game. This should tell you what address the ROM is at, how big it is, what it's used for.

Memory Area:audiocpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	s-1.u21	CRC(08e5d846) (Fluke: 83A5)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x3FFFF	262144	mp-6.ic14	CRC(00f4896b)
0x40000-0x7FFFF	262144	mp-5.ic126	CRC(1fd30a32)
0x80000-0xBFFFF	262144	5.ic124	CRC(55666102)
0xC0000-0xFFFFF	262144	6.ic125	CRC(aa1c4c32)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	u204	CRC(daeff303)
0x10000-0x1FFFF	65536	u203	CRC(29fd8afe) (Fluke: 0DF5)

Memory Area:oki

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	ic13	CRC(7a4f4272)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	a71-25.bin	CRC(2d0f8545),video timing - taken from bublbobl (Fluke: D181)

Memory Area:slave

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	ic11	CRC(dc1c72ba)