Dig Dug Memory Map

Contributors
Contributors
- Contributor Account
- Sign Up
On-Line Databases
On-Line Databases
Main
Main
Education
Education
My Restorations
My Restorations
- Restorations
- Conversions
Restoring Games
Restoring Games
Repairing Games
Repairing Games
Resources
Resources
Miscellaneous
Miscellaneous

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.

Dig Dug (Namco (Atari license), 1982)

Memory Area:digdug_map

Address Range	Length	Function	Description
0x0000-0x3FFF	16384	ROM, Write NOP	(/* the only area different for each CPU */)
0x6800-0x681F	32	Device Write	namco, namco_device, pacman_sound_w
0x6820-0x6827	8	Write	bosco_latch_w (/* misc latches */)
0x6830	1	Device Write	watchdog, watchdog_timer_device, reset_w
0x7000-0x70FF	256	Device Read/Write	06xx, namco_06xx_device, data_r, data_w
0x7100	1	Device Read/Write	06xx, namco_06xx_device, ctrl_r, ctrl_w
0x8000-0x83FF	1024	RAM Write, Shared	digdug_videoram_w, videoram (/* tilemap RAM (bottom half of RAM 0 */)
0x8400-0x87FF	1024	RAM, Shared	share1 (/* work RAM (top half for RAM 0 */)
0x8800-0x8BFF	1024	RAM, Shared	digdug_objram (/* work RAM + sprite registers */)
0x9000-0x93FF	1024	RAM, Shared	digdug_posram (/* work RAM + sprite registers */)
0x9800-0x9BFF	1024	RAM, Shared	digdug_flpram (/* work RAM + sprite registers */)
0xA000-0xA007	8	Read NOP, Write	digdug_PORT_w (/* video latches (spurious reads when setting latch bits) */)
0xB800-0xB83F	64	Device Read/Write	earom, atari_vg_earom_device, read, write (/* non volatile memory data */)
0xB840	1	Device Write	earom, atari_vg_earom_device, ctrl_w (/* non volatile memory control */)

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:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	136007.108	CRC(3d24a3af) (Fluke: 4F31)
0x0000-0x07FF	2048	136007.108	CRC(3d24a3af) (Fluke: 4F31)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.116	CRC(e22957c8) (Fluke: F7F6)
0x0000-0x0FFF	4096	136007.116	CRC(e22957c8) (Fluke: F7F6)
0x1000-0x1FFF	4096	136007.117	CRC(a3bbfd85) (Fluke: DD80)
0x1000-0x1FFF	4096	136007.117	CRC(a3bbfd85) (Fluke: DD80)
0x2000-0x2FFF	4096	136007.118	CRC(458499e9) (Fluke: DF28)
0x2000-0x2FFF	4096	136007.118	CRC(458499e9) (Fluke: DF28)
0x3000-0x3FFF	4096	136007.119	CRC(c58252a0) (Fluke: 9081)
0x3000-0x3FFF	4096	136007.119	CRC(c58252a0) (Fluke: 9081)

Memory Area:gfx3

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.115	CRC(754539be) (Fluke: 4CC6)
0x0000-0x0FFF	4096	136007.115	CRC(754539be) (Fluke: 4CC6)

Memory Area:gfx4

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.114	CRC(d6822397) (Fluke: F73A)
0x0000-0x0FFF	4096	136007.114	CRC(d6822397) (Fluke: F73A)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.201	CRC(23d0b1a4) (Fluke: 901B)
0x1000-0x1FFF	4096	136007.202	CRC(5453dc1f) (Fluke: 25C9)
0x2000-0x2FFF	4096	136007.203	CRC(c9077dfa) (Fluke: 92A0)
0x3000-0x3FFF	4096	136007.204	CRC(a8fc8eac) (Fluke: 2711)

Memory Area:namco

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	136007.110	CRC(7a2815b4) (Fluke: BF07)
0x0000-0x00FF	256	136007.110	CRC(7a2815b4) (Fluke: BF07)
0x0100-0x01FF	256	136007.109	CRC(77245b66),timing - not used (Fluke: E0E5)
0x0100-0x01FF	256	136007.109	CRC(77245b66),timing - not used (Fluke: E0E5)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	136007.113	CRC(4cb9da99)
0x0000-0x001F	32	136007.113	CRC(4cb9da99)
0x0020-0x011F	256	136007.111	CRC(00c7c419)
0x0020-0x011F	256	136007.111	CRC(00c7c419)
0x0120-0x021F	256	136007.112	CRC(e9b3e08e)
0x0120-0x021F	256	136007.112	CRC(e9b3e08e)

Memory Area:sub

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.205	CRC(5ba385c5) (Fluke: 7E56)
0x1000-0x1FFF	4096	136007.206	CRC(382b4011) (Fluke: CD6F)

Memory Area:sub2

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	136007.107	CRC(a41bce72) (Fluke: B547)
0x0000-0x0FFF	4096	136007.107	CRC(a41bce72) (Fluke: B547)