Attack Ufo 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.

Attack Ufo (Ryoto Electric Co., 1980)

Memory Area:cpu_map

Address Range

Length

Function

Description

0x0000-0x0FFF

4096

RAM

0x1000-0x100F

Device Read/Write

mos6560, mos6560_device, read, write

0x1400-0x1403

Device Read/Write

pia, pia6821_device, read, write

0x0000	3	Active High
0x0001	4	Active High
0x0002	5	Active High
0x0003	6	Active High
0x0004	1000	Active High
0x0000	1500	Active High
0x0010	Unused	Active Low
0x0020	Unused	Active Low
0x0040	Unused	Active Low
0x0080	Coin 1	Active Low

0x1C00-0x1FFF

1024

RAM

0x2000-0x3FFF

8192

ROM, Region

maincpu, 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:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x03FF	1024	1	CRC(b32a36ab) (Fluke: 35DD)
0x0400-0x07FF	1024	2	CRC(35fc8424) (Fluke: 403F)
0x0800-0x0BFF	1024	3	CRC(6341c8c4) (Fluke: E2E8)
0x0C00-0x0FFF	1024	4	CRC(1ed1d93f) (Fluke: A65D)
0x1000-0x13FF	1024	5	CRC(3380e0f4) (Fluke: 7BB2)
0x1400-0x17FF	1024	6	CRC(8103e031) (Fluke: F497)
0x1800-0x1BFF	1024	7	CRC(43a41012) (Fluke: 4F92)
0x1C00-0x1FFF	1024	8	CRC(9ce93eb0) (Fluke: E735)