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.
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x000F16RAM, Sharedbulletsram
0x0010-0x01FF496RAM
0x0200-0x07FF1536RAM
0x0800-0x0BFF1024RAM Write, Sharedvideoram_w, videoram
0x0C00-0x0C078Readin0_r
0x0C00-0x0C012Writeled_w
0x0C021Writecoincounter_w
0x0C031Writecoinlockout_w
0x0C08-0x0C0F8Readin1_r
0x0C081Write NOP(//coin counter mirror?)
0x0C0A1Writeinterrupt_enable_w
0x0C0B1Writesh_engine_w
0x0C0C1Writesh_fire_w
0x0C0D1Writesh_expl_w (// bit 7 == led for the start 2 button)
0x0C0E1Write NOP(//bit 7 == led for the start 1 button)
0x0C0F1Writedemo_interrupt_enable_w
0x0C101Writeirq_ack_w
0x0C181Write NOP(/* watchdog ?? */)
0x0C18-0x0C1F8Readdsw_r
0x2000-0xFFFF57344Read NOP(//anything else might be left-over for a diagnostic ROM or something related to the discrete sound HW)
0x6000-0x7FFF8192ROM, Regionmaincpu,0
0xE000-0xFFFF8192ROM, Regionmaincpu,0 (//mirror for the reset/irq vectors)
 

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
0x0000-0x07FF2048e.2kCRC(249f4e1b)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048tb1-1.1aCRC(278a0b8c) (Fluke: B4CF)
0x0800-0x0FFF2048tb1-2.1bCRC(e0923370) (Fluke: 86FC)
0x1000-0x17FF2048tb1-3.1cCRC(85005ea4) (Fluke: 3138)
0x1800-0x1FFF2048tb1-4.1dCRC(3dfb5bcf) (Fluke: 1B31)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256bct1-1.l3CRC(d17518bc) (Fluke: 7732)
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