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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.
Sharpshooter (P&P Marketing, 1998)
Memory Area:policetr_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFF131072RAM, Sharedrambase
0x200000-0x20000F16Writepolicetr_video_w
0x400000-0x4000034Readpolicetr_video_r
0x500000-0x5000034Write NOP(// copies ROM here at startup, plus checksum)
0x600000-0x6000034Readbsmt2000_data_r
0x700000-0x7000034Writepolicetr_bsmt2000_reg_w
0x800000-0x8000034Writepolicetr_bsmt2000_data_w
0x900000-0x9000034Writepolicetr_palette_offset_w
0x920000-0x9200034Writepolicetr_palette_data_w
0xA00000-0xA000034Read PortIN0
0xA00000-0xA000034Writecontrol_w
0xA20000-0xA200034Read PortIN1
0xA40000-0xA400034Read PortDSW
0xE00000-0xE000034Write NOP(// watchdog???)
0x1FC00000-0x1FC7FFFF524288ROM, Regionuser1, 0
Memory Area:sshooter_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFF131072RAM, Sharedrambase
0x200000-0x2000034Writepolicetr_bsmt2000_data_w
0x300000-0x3000034Writepolicetr_palette_offset_w
0x320000-0x3200034Writepolicetr_palette_data_w
0x400000-0x4000034Readpolicetr_video_r
0x500000-0x5000034Write NOP(// copies ROM here at startup, plus checksum)
0x600000-0x6000034Readbsmt2000_data_r
0x700000-0x7000034Writepolicetr_bsmt2000_reg_w
0x800000-0x80000F16Writepolicetr_video_w
0xA00000-0xA000034Writecontrol_w
0xA00000-0xA000034Read PortIN0
0xA20000-0xA200034Read PortIN1
0xA40000-0xA400034Read PortDSW
0xE00000-0xE000034Write NOP(// watchdog???)
0x1FC00000-0x1FCFFFFF1048576ROM, Regionuser1, 0
 

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:bsmt
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576ss-u160.binCRC(1c603d42) (Fluke: C1F5)
0x0000-0xFFFFF1048576ss-u160.binCRC(1c603d42) (Fluke: C1F5)
0x0000-0xFFFFF1048576ss-u160.binCRC(1c603d42) (Fluke: C1F5)
0x0000-0xFFFFF1048576ss-u160.binCRC(1c603d42) (Fluke: C1F5)
0x100000-0x1FFFFF1048576ss-u162.binCRC(40ef448a) (Fluke: 8B3D)
0x100000-0x1FFFFF1048576ss-u162.binCRC(40ef448a) (Fluke: 8B3D)
0x100000-0x1FFFFF1048576ss-u162.binCRC(40ef448a) (Fluke: 8B3D)
0x100000-0x1FFFFF1048576ss-u162.binCRC(40ef448a) (Fluke: 8B3D)
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