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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.
1991 Spikes (bootleg, 1991)
Memory Area:spikes91_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x100000-0x10FFFF65536RAM(/* work RAM */)
0x200000-0x203FFF16384RAM, Sharedspriteram1
0xC04000-0xC040012Write NOP
0xFF8000-0xFF8FFF4096RAM Write, Sharedaerofgt_bg1videoram_w, bg1videoram
0xFFA000-0xFFBFFF8192RAM, Sharedtx_tilemap_ram
0xFFC000-0xFFCFFF4096RAM, Sharedspriteram3
0xFFD000-0xFFDFFF4096RAM, Sharedrasterram (/* bg1 scroll registers */)
0xFFE000-0xFFEFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0xFFF000-0xFFF0012Read PortIN0
0xFFF002-0xFFF0032Read Port, WriteIN1, pspikes_gfxbank_w
0xFFF004-0xFFF0052Read Port, WriteDSW, aerofgt_bg1scrolly_w
0xFFF006-0xFFF0072Read/Write NOP
0xFFF008-0xFFF0092Writespikes91_lookup_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:cpu1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655361.ic140CRC(e3065b1d) (Fluke: 072F)
0x0000-0xFFFF655361.ic140CRC(e3065b1d) (Fluke: 072F)
0x10000-0x1FFFF655362.ic141CRC(5dd8bf22) (Fluke: A195)
0x10000-0x1FFFF655362.ic141CRC(5dd8bf22) (Fluke: A195)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF1310723.ic76CRC(ab451eee) (Fluke: F15A)
0x0000-0x1FFFF1310723.ic76CRC(ab451eee) (Fluke: F15A)
0x20000-0x3FFFF1310724.ic75CRC(fe857bbd) (Fluke: BE75)
0x20000-0x3FFFF1310724.ic75CRC(fe857bbd) (Fluke: BE75)
0x40000-0x5FFFF1310725.ic74CRC(d7fcd97c) (Fluke: 7749)
0x40000-0x5FFFF1310725.ic74CRC(d7fcd97c) (Fluke: 7749)
0x60000-0x7FFFF1310726.ic73CRC(e6b9107f) (Fluke: EFE1)
0x60000-0x7FFFF1310726.ic73CRC(e6b9107f) (Fluke: EFE1)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF26214411.ic118CRC(6e65b4b2) (Fluke: 93F0)
0x0000-0x3FFFF26214411.ic118CRC(6e65b4b2) (Fluke: 93F0)
0x40000-0x7FFFF26214412.ic119CRC(60e0d3e0) (Fluke: 6D64)
0x40000-0x7FFFF26214412.ic119CRC(60e0d3e0) (Fluke: 6D64)
0x80000-0xBFFFF26214413.ic120CRC(89213a8c) (Fluke: 71DD)
0x80000-0xBFFFF26214413.ic120CRC(89213a8c) (Fluke: 71DD)
0xC0000-0xFFFFF26214414.ic121CRC(468cbf5b) (Fluke: 0DED)
0xC0000-0xFFFFF26214414.ic121CRC(468cbf5b) (Fluke: 0DED)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF6553610.ic104CRC(769ade77)
0x0000-0xFFFF6553610.ic104CRC(769ade77) (Fluke: D07D)
0x10000-0x1FFFF655369.ic103CRC(201cb748) (Fluke: 9B99)
0x10000-0x1FFFF655369.ic103CRC(201cb748)
Memory Area:user2
Address RangeLengthLabel/LocationDescription
0x0000-0x08832180ep910pc.ic7CRC(e7a3913a) (Fluke: CF38)
0x0000-0x08832180ep910pc.ic7CRC(e7a3913a) (Fluke: CF38)
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