Shougi Part II 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.

Shougi Part II (Alpha Denshi Co. (Tehkan license), 1982)

Memory Area:main_map

Address Range	Length	Function	Description
0x0000-0x3FFF	16384	ROM
0x4000-0x43FF	1024	RAM	(/* 2114 x 2 (0x400 x 4bit each) */)
0x4800	1	Read Port	DSW
0x4800-0x480F	16	Write	control_w
0x5000	1	Read Port	P1
0x5800	1	Read Port, Device Write	P2, watchdog, watchdog_timer_device, reset_w (/* game won't boot if watchdog doesn't work */)
0x6000	1	Device Write	aysnd, ay8910_device, address_w
0x6800	1	Device Write	aysnd, ay8910_device, data_w
0x7000-0x73FF	1024	Device Read/Write	alpha_8201, alpha_8201_device, ext_ram_r, ext_ram_w
0x7800-0x7BFF	1024	RAM, Shared	sharedram (/* 2114 x 2 (0x400 x 4bit each) */)
0x8000-0xFFFF	32768	RAM, Shared	videoram (/* 4116 x 16 (32K) */)

Memory Area:readport_sub

Address Range	Length	Function	Description
0x0000	1	Read	semaphore_r

Memory Area:sub_map

Address Range	Length	Function	Description
0x0000-0x5FFF	24576	ROM
0x6000-0x63FF	1024	RAM, Shared	sharedram (/* 2114 x 2 (0x400 x 4bit each) */)

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:alpha_8201:mcu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	alpha-8201_44801a75_2f25.bin	CRC(b77931ac) (Fluke: 3908)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	1-2.3a	CRC(16d75306) (Fluke: 271D)
0x1000-0x1FFF	4096	3-2.3c	CRC(35b6d98b) (Fluke: 6190)
0x2000-0x2FFF	4096	2-2.3b	CRC(b38affed) (Fluke: A064)
0x3000-0x3FFF	4096	4-2.3d	CRC(1abdb6bf) (Fluke: C265)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	pr.2l	CRC(cd3559ff) (Fluke: 5C6D)

Memory Area:sub

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	5-2.3e	CRC(0ba89dd4) (Fluke: 7137)
0x1000-0x1FFF	4096	8-2.3j	CRC(0ae0c8c1) (Fluke: 13B2)
0x2000-0x2FFF	4096	6-2.3f	CRC(d98abcae) (Fluke: 3514)
0x3000-0x3FFF	4096	9-2.3k	CRC(4e0e6c90) (Fluke: 776D)
0x4000-0x4FFF	4096	7-2.3h	CRC(5f37ebc6) (Fluke: DAA6)
0x5000-0x5FFF	4096	10-2.3l	CRC(a26385fd) (Fluke: 7113)