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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.
Rack + Roll (Senko Industries (Status license from Shinkai Inc.), 1986)
Memory Area:racknrol
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096ROM
0x1400-0x143F64Mirror, RAM Write, Shared0x6000, galaxold_attributesram_w, attributesram
0x1440-0x14BF128Mirror, RAM, Shared0x6000, , spriteram
0x14C0-0x14FF64Mirror, RAM0x6000,
0x15001Mirror, Read Port0x6000, IN0
0x0001Coin 1Active High
0x0002Coin 2Active High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Button 1Active High
0x0020Joystick UpActive High
0x0040UnknownActive High
0x0080Joystick DownActive High
0x15801Mirror, Read Port0x6000, IN1
0x0001Start 1Active High
0x0002Start 2Active High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x1600-0x16012Mirror, Write NOP0x6000,
0x16001Mirror, Read Port0x6000, DSW0
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x16061Mirror, Write0x6000, galaxold_flip_screen_x_w
0x16071Mirror, Write0x6000, galaxold_flip_screen_y_w
0x16801Mirror, Read NOP0x6000,
0x1800-0x1BFF1024Mirror, Write, Shared0x6000, galaxold_videoram_w, videoram
0x1C00-0x1FFF1024Mirror, RAM0x6000,
0x2000-0x2FFF4096ROM
0x4000-0x4FFF4096ROM
0x6000-0x6FFF4096ROM
Memory Area:racknrol_io
Address RangeLengthFunctionDescription
0x00001Read PortSENSE
0x0080CustomActive Low
0x001D1Device Writesnsnd, sn76489a_device, write
0x0020-0x003F32Write, Sharedracknrol_tiles_bank_w, racknrol_tbank
 

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
0x0000-0x3FFF16384horz_g.binCRC(97069ad5) (Fluke: 4155)
0x4000-0x7FFF16384horz_r.binCRC(ff64e84b) (Fluke: 8801)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096horz_p.binCRC(32ca5b43) (Fluke: 7E8E)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F3282s123.binCRC(737802bf) (Fluke: 7026)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x01FF51282s147.binCRC(aace7fa5) (Fluke: E988)
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