Mahjong Shiyou 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.

Mahjong Shiyou (Visco, 1986)

Memory Area:royalmah_iomap

Address Range	Length	Function	Description
0x0001	1	Device Read	aysnd, ay8910_device, data_r
0x0002-0x0003	2	Device Write	aysnd, ay8910_device, data_address_w
0x0010	1	Read Port, Write	DSW1, royalmah_palbank_w
0x0011	1	Read Port, Write	SYSTEM, input_port_select_w

Memory Area:royalmah_map

Address Range	Length	Function	Description
0x0000-0x6FFF	28672	ROM, Write	royalmah_rom_w
0x7000-0x7FFF	4096	RAM, Shared	nvram
0x8000-0xFFFF	32768	Write Only, Shared	videoram
0x8000-0xFFFF	32768	ROM Bank	bank1 (// banked ROMs not present in royalmah)

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:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	3.3g	CRC(47d0f16e) (Fluke: 621B)
0x8000-0xFFFF	32768	4.3f	CRC(6cd6a200) (Fluke: 3839)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	color.bpr	CRC(d21367e5) (Fluke: 8911)

Memory Area:sub

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	1.1k	CRC(a1083321) (Fluke: D986)
0x8000-0xBFFF	16384	2.1g	CRC(cfe5de1d) (Fluke: 17CC)