Cowboy Eight Ball 2 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.

Cowboy Eight Ball 2 (LTD, 1981)

Memory Area:ltd4_io

Address Range	Length	Function	Description
0x0100	1	Read/Write	port1_r,port1_w
0x0101	1	Read/Write	port2_r,port2_w

Memory Area:ltd4_map

Address Range	Length	Function	Description
0x0000-0x001F	32	RAM	(// internal to the cpu)
0x0080-0x00FF	128	RAM
0x0100-0x01FF	256	RAM, Shared	nvram
0x0800	1	Write	count_reset_w
0x0C00	1	Device Write	aysnd_1, ay8910_device, reset_w
0x1000	1	Device Write	aysnd_0, ay8910_device, address_w
0x1400	1	Device Write	aysnd_0, ay8910_device, reset_w
0x1800	1	Device Write	aysnd_1, ay8910_device, address_w
0x3000	1	Device Write	aysnd_0, ay8910_device, data_w
0x3800	1	Device Write	aysnd_1, ay8910_device, data_w
0xC000-0xDFFF	8192	ROM, Mirror, Region	0x2000, roms, 0

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:roms

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	cowboy_l.bin	CRC(87befe2a)
0x1000-0x1FFF	4096	cowboy_h.bin	CRC(105e5d7b)