Rotation VIII 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.

Rotation VIII (Midway, 1978)

Memory Area:g627_io

Address Range	Length	Function	Description
0x0000-0x0002	3	Write	disp_w
0x0003-0x0007	5	Write	lamp_w
0x0010-0x0017	8	Device Write	astrocade, astrocade_device, astrocade_sound_w
0x0020-0x0027	8	Device Read/Write	i8156, i8155_device, io_r, io_w

Memory Area:g627_map

Address Range	Length	Function	Description
0x0000-0x1FFF	8192	ROM
0xC000-0xC0FF	256	Device Read/Write	i8156, i8155_device, memory_r, memory_w
0xE000-0xE0FF	256	RAM, Shared	nvram (// battery backed)

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
0x0000-0x07FF	2048	rot-a117.dat	CRC(7bb6beb3)
0x0800-0x0FFF	2048	rot-b117.dat	CRC(538e37b2)
0x1000-0x17FF	2048	rot-c117.dat	CRC(3321ff08)