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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.
Neck-n-Neck (Bundra Games / Incredible Technologies, 1992)
Memory Area:tmslo_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096Read/Writetms34061_r, tms34061_w
0x11001Write NOP
0x11201Writesound_data_w
0x11401Read Port, Write40, grom_bank_w
0x0001SpecialActive High
0x0006UnusedActive Low
0x0000OffActive High
0x0008OnActive High
0x0070UnusedActive Low
0x11601Read Port, Write60, page_w
0x0001Coin 3Active Low
0x0002UnknownActive Low
0x0004Horse 3Active Low
0x0008Horse 2Active Low
0x0010Start 1Active Low
0x0020Horse 1Active Low
0x0040UnknownActive Low
0x0080Coin 1Active Low
0x11801Read Port, Device Write80, tms34061, tms34061_device, latch_w
0x0001Coin 4Active Low
0x0006UnknownActive Low
0x0008Horse 4Active Low
0x0010Horse 6Active Low
0x0020Horse 5Active Low
0x0040UnknownActive Low
0x0080Coin 2Active Low
0x11A01Writenmi_ack_w
0x11C0-0x11DF32Read, Writeblitter_r, blitter_bank_w
0x11E0-0x11FF32Writepalette_w
0x2000-0x3FFF8192RAM, Sharednvram
0x4000-0xFFFF49152ROM Bankbank1
 

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:grom
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072nn_grom0.binCRC(064d1464) (Fluke: 1ADA)
0x20000-0x3FFFF131072nn_grom1.binCRC(622d9a0b) (Fluke: BE95)
0x40000-0x5FFFF131072nn_grom2.binCRC(e7eb4020) (Fluke: F2BA)
0x60000-0x7FFFF131072nn_grom3.binCRC(765c8593) (Fluke: 03EB)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x4000-0x7FFF16384nn_prg12.u5CRC(8e51734a) (Fluke: 795A)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144nn_srom0.binCRC(33687201) (Fluke: 9CA1)
Memory Area:soundcpu
Address RangeLengthLabel/LocationDescription
0x8000-0xFFFF32768nn_snd10.u27CRC(74771b2f) (Fluke: 49F4)
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