Search

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.
Mr. Do! (Universal, 1982)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM Write, Sharedmrdo_bgvideoram_w, bgvideoram
0x8800-0x8FFF2048RAM Write, Sharedmrdo_fgvideoram_w, fgvideoram
0x9000-0x90FF256Write Only, Sharedspriteram
0x98001Writemrdo_flipscreen_w (/* screen flip + playfield priority */)
0x98011Device Writeu8106_1, u8106_device, write
0x98021Device Writeu8106_2, u8106_device, write
0x98031Readmrdo_SECRE_r
0xA0001Read PortP1
0x0001Joystick LeftActive Low
0x0002Joystick DownActive Low
0x0004Joystick RightActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Start 1Active Low
0x0040Start 2Active Low
0x0080TiltActive Low
0xA0011Read PortP2
0x0001Joystick LeftActive Low
0x0002Joystick DownActive Low
0x0004Joystick RightActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020UnusedActive Low
0x0040Coin 1Active Low
0x0080Coin 2Active Low
0xA0021Read PortDSW1
0x0003DifficultyActive High
0x0003EasyActive High
0x0002MediumActive High
0x0001HardActive High
0x0000HardestActive High
0x0004OffActive High
0x0000OnActive High
0x0008EasyActive High
0x0000HardActive High
0x0010EasyActive High
0x0000HardActive High
0x0020CabinetActive High
0x0000UprightActive High
0x0020CocktailActive High
0x00c0LivesActive High
0x00002Active High
0x00c03Active High
0x00804Active High
0x00405Active High
0xA0031Read PortDSW2
0x000fCoin_BActive High
0x00064C_1CActive High
0x00083C_1CActive High
0x000a2C_1CActive High
0x00073C_2CActive High
0x000f1C_1CActive High
0x00092C_3CActive High
0x000e1C_2CActive High
0x000d1C_3CActive High
0x000c1C_4CActive High
0x000b1C_5CActive High
0x0000Free_PlayActive High
0x00f0Coin_AActive High
0x00604C_1CActive High
0x00803C_1CActive High
0x00a02C_1CActive High
0x00703C_2CActive High
0x00f01C_1CActive High
0x00902C_3CActive High
0x00e01C_2CActive High
0x00d01C_3CActive High
0x00c01C_4CActive High
0x00b01C_5CActive High
0x0000Free_PlayActive High
0xE000-0xEFFF4096RAM
0xF000-0xF7FF2048Writemrdo_scrollx_w
0xF800-0xFFFF2048Writemrdo_scrolly_w
 

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 RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096s8-09.binCRC(aa80c5b6) (Fluke: C5A6)
0x1000-0x1FFF4096u8-10.binCRC(d20ec85b) (Fluke: 7328)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096r8-08.binCRC(dbdc9ffa) (Fluke: 66EF)
0x1000-0x1FFF4096n8-07.binCRC(4b9973db) (Fluke: A2BB)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096h5-05.binCRC(e1218cc5) (Fluke: D553)
0x1000-0x1FFF4096k5-06.binCRC(b1f68b04) (Fluke: DE27)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192a4-01.binCRC(03dcfba2) (Fluke: 8061)
0x2000-0x3FFF8192c4-02.binCRC(0ecdd39c) (Fluke: AC3C)
0x4000-0x5FFF8192e4-03.binCRC(358f5dc2) (Fluke: 79F4)
0x6000-0x7FFF8192f4-04.binCRC(f4190cfc) (Fluke: 0CF6)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32u02--2.binCRC(238a65d7),palette (high bits) (Fluke: 62C0)
0x0000-0x001F32u02--2.binCRC(238a65d7),palette (high bits) (Fluke: 62C0)
0x0020-0x003F32t02--3.binCRC(ae263dc0),palette (low bits) (Fluke: 7BCC)
0x0020-0x003F32t02--3.binCRC(ae263dc0),palette (low bits) (Fluke: 7BCC)
0x0040-0x005F32f10--1.binCRC(16ee4ca2),sprite color lookup table (Fluke: 057E)
0x0040-0x005F32f10--1.binCRC(16ee4ca2),sprite color lookup table (Fluke: 057E)
0x0060-0x007F32j10--4.binCRC(ff7fe284),timing (not used) (Fluke: 843D)
0x0060-0x007F32j10--4.binCRC(ff7fe284),timing (not used) (Fluke: 843D)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3