Cheeky Mouse 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.

Cheeky Mouse (Universal, 1980)

Memory Area:io_map

Address Range

Length

Function

Description

0x0000

Read Port

DSW

0x0000	2	Active High
0x0001	3	Active High
0x0002	4	Active High
0x0003	5	Active High
0x0008	2C_1C	Active High
0x0004	1C_1C	Active High
0x0000	1C_2C	Active High
0x000c	1C_1C	Active High
0x0010	Upright	Active High
0x0000	Cocktail	Active High
0x0000	Off	Active High
0x0020	On	Active High
0x0040	3000	Active High
0x0080	4500	Active High
0x00c0	6000	Active High
0x0000	None	Active High

0x0001

Read Port

INPUTS

0x0001	Start 1	Active Low
0x0002	Start 2	Active Low
0x0004	Joystick Right	Active Low
0x0008	Joystick Left	Active Low
0x0010	Button 1	Active Low
0x0020	Joystick Right	Active Low
0x0040	Joystick Left	Active Low
0x0080	Button 1	Active Low

0x0020-0x003F

Write Only, Shared

spriteram

0x0040

Write

port_40_w

0x0080

Write, Shared

port_80_w, port_80

Memory Area:main_map

Address Range	Length	Function	Description
0x0000-0x1FFF	8192	ROM
0x3000-0x33FF	1024	RAM
0x3800-0x3BFF	1024	RAM, Shared	videoram

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:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	cm01.c1	CRC(26f73bd7) (Fluke: 3BB5)
0x0800-0x0FFF	2048	cm02.c2	CRC(885887c3) (Fluke: 25A0)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	cm07.n5	CRC(2738c88d) (Fluke: F97F)
0x0800-0x0FFF	2048	cm08.n6	CRC(b3fbd4ac) (Fluke: BDD3)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	cm03.c5	CRC(1ad0cb40) (Fluke: 1664)
0x0800-0x0FFF	2048	cm04.c6	CRC(2238f607) (Fluke: 9251)
0x1000-0x17FF	2048	cm05.c7	CRC(4169eba8) (Fluke: 9B73)
0x1800-0x1FFF	2048	cm06.c8	CRC(7031660c) (Fluke: 5BC2)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	cm.m9	CRC(db9c59a5),Character colors / (Fluke: DF87)
0x0020-0x003F	32	cm.m8	CRC(2386bc68),Character colors \ Selected by Bit 6 of Port 0x80 (Fluke: 23A0)
0x0040-0x005F	32	cm.p3	CRC(6ac41516),Sprite colors (Fluke: 6C6C)