Sector Zone 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.

Sector Zone (Nichibutsu / Alice, 1984)

Memory Area:main_map

Address Range	Length	Function	Description
0x0000-0x77FF	30720	ROM
0x7800-0x7FFF	2048	RAM, Shared	share1
0x8820-0x887F	96	RAM, Shared	spriteram
0x9000-0x93FF	1024	RAM Write, Shared	videoram_w, videoram (/* video RAM */)
0x9800-0x981F	32	RAM, Shared	row_scroll
0x9880-0x989F	32	Write Only, Shared	spriteram2
0x9C00-0x9FFF	1024	RAM Write, Shared	colorram_w, colorram
0xA000	1	Read Port	IN0 (/* IN0 */)
0xA800	1	Read Port	IN1 (/* IN1 */)
0xB000	1	Read Port	TEST (/* test */)
0xB800	1	Device Read	watchdog, watchdog_timer_device, reset_r

Memory Area:main_portmap

Address Range	Length	Function	Description
0x0000-0x0001	2	Mirror, Device Write	0x08, aysnd, ay8910_device, address_data_w
0x0004	1	Mirror, Device Read	0x08, aysnd, ay8910_device, data_r

Memory Area:mcu_no_nvram_map

Address Range	Length	Function	Description
0x0000-0x007F	128	RAM
0x1003	1	Read Port	DSW1 (/* DSW1 */)
0x1005	1	Read Port	DSW2 (/* DSW2 */)
0x1006	1	Read Port	DSW3 (/* DSW3 */)
0x2000	1	Write	dac_w
0x8000-0xF7FF	30720	ROM, Region	maincpu, 0
0xF800-0xFFFF	2048	RAM, Shared	share1

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
0x0000-0x0FFF	4096	sz11.7k	CRC(fbd9b91d) (Fluke: AB69)
0x1000-0x1FFF	4096	sz12.7m	CRC(2bdef9ad) (Fluke: D50C)
0x2000-0x2FFF	4096	sz9.7j	CRC(4819f0cd) (Fluke: FB2B)
0x3000-0x3FFF	4096	sz10.7h	CRC(4c268778) (Fluke: B849)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	sz1.3a	CRC(f0a45cb4) (Fluke: 25F9)
0x1000-0x1FFF	4096	sz2.3c	CRC(fea68ddb) (Fluke: C472)
0x2000-0x2FFF	4096	sz3.3d	CRC(baad4294) (Fluke: BA00)
0x3000-0x3FFF	4096	sz4.3e	CRC(75f2ca75) (Fluke: 1DB9)
0x4000-0x4FFF	4096	sz5.3fg	CRC(dc14f2c8) (Fluke: 19D1)
0x5000-0x5FFF	4096	sz6.3h	CRC(397a38c5) (Fluke: 7D38)
0x6000-0x6FFF	4096	sz7.3i	CRC(7b34dc1c) (Fluke: 8B90)
0x7000-0x77FF	2048	sz8.3j	CRC(9933526a) (Fluke: A7C1)

Memory Area:plds

Address Range	Length	Label/Location	Description
0x0000-0x0043	68	pal16h2.3b	CRC(e1a6a86d) (Fluke: EF96)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	sz73.10c	CRC(4d218a3c) (Fluke: 3382)
0x0020-0x003F	32	sz74.10b	CRC(c550531c) (Fluke: AFE6)