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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.
Gang Wars (bootleg, 1989)
Memory Area:alpha68k_V_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x40000-0x43FFF16384RAM, Sharedshared_ram
0x80000-0x800012Read/Writecontrol_1_r, alpha68k_V_sound_w (/* Joysticks */)
0xC0000-0xC00FF256Writealpha68k_V_video_control_w
0xC0000-0xC00012Readcontrol_2_V_r (/* Dip 2 */)
0xD8000-0xD80012Read NOP(/* IRQ ack? */)
0xE0000-0xE00012Read NOP(/* IRQ ack? */)
0xE8000-0xE80012Read NOP(/* watchdog? */)
0x100000-0x100FFF4096RAM Write, Sharedalpha68k_videoram_w, videoram
0x200000-0x207FFF32768RAM, Sharedspriteram
0x300000-0x3001FF512Writealpha_microcontroller_w
0x300000-0x303FFF16384Readalpha_V_trigger_r
0x303E00-0x303FFF512Writealpha_microcontroller_w (/* Gang Wars mirror */)
0x400000-0x401FFF8192RAM Device Write, Sharedpalette, palette_device, write, palette
0x800000-0x83FFFF262144ROM Bankbank8
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM
0xC000-0xFFFF16384ROM Bankbank7
Memory Area:sound_portmap
Address RangeLengthFunctionDescription
0x00001Device Read/Writesoundlatch, generic_latch_8_device, read, clear_w
0x00081Device Writedac, dac_byte_interface, write
0x000A-0x000B2Device Writeym2, ym2413_device, write
0x000C-0x000D2Device Writeym1, ym2203_device, write
0x000E1Writesound_bank_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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gwb_ic.380CRC(e6d6c9cf) (Fluke: FAA1)
0x30000-0x3FFFF65536gwb_ic.421CRC(7b9f2608) (Fluke: AE6B)
0x50000-0x5FFFF65536gwb_ic.420CRC(eb305d42) (Fluke: 1975)
0x70000-0x7FFFF65536gwb_ic.419CRC(84e5c946) (Fluke: 27B7)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536gwb_ic.m19CRC(b75bf1d0) (Fluke: 0DE1)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536gwb_ic.308CRC(321a2fdd) (Fluke: 0947)
0x10000-0x1FFFF65536gwb_ic.309CRC(4d908f65) (Fluke: 4995)
0x20000-0x2FFFF65536gwb_ic.310CRC(fc888541) (Fluke: 19CC)
0x30000-0x3FFFF65536gwb_ic.311CRC(181b128b) (Fluke: 0D67)
0x40000-0x4FFFF65536gwb_ic.312CRC(930665f3) (Fluke: D072)
0x50000-0x5FFFF65536gwb_ic.313CRC(c18f4ca8) (Fluke: 491D)
0x60000-0x6FFFF65536gwb_ic.314CRC(dfc44b60) (Fluke: CB3D)
0x70000-0x7FFFF65536gwb_ic.307CRC(28082a7f) (Fluke: C29C)
0x80000-0x8FFFF65536gwb_ic.280CRC(222b3dcd) (Fluke: 944B)
0x90000-0x9FFFF65536gwb_ic.321CRC(6b421c7b) (Fluke: 76C9)
0x100000-0x10FFFF65536gwb_ic.300CRC(f3fa0877) (Fluke: C319)
0x110000-0x11FFFF65536gwb_ic.301CRC(f8c866de) (Fluke: 64D5)
0x120000-0x12FFFF65536gwb_ic.302CRC(5b0d587d) (Fluke: CF11)
0x130000-0x13FFFF65536gwb_ic.303CRC(d8c0e102) (Fluke: B5CF)
0x140000-0x14FFFF65536gwb_ic.304CRC(b02bc9d8) (Fluke: 3F2A)
0x150000-0x15FFFF65536gwb_ic.305CRC(5e04a9aa) (Fluke: ED09)
0x160000-0x16FFFF65536gwb_ic.306CRC(e2172955) (Fluke: A945)
0x170000-0x17FFFF65536gwb_ic.299CRC(e39f5599) (Fluke: 9E51)
0x180000-0x18FFFF65536gwb_ic.320CRC(9a7b51d8) (Fluke: 609C)
0x190000-0x19FFFF65536gwb_ic.319CRC(c5b862b7) (Fluke: 328A)
0x200000-0x20FFFF65536gwb_ic.292CRC(c125f7be) (Fluke: A21A)
0x210000-0x21FFFF65536gwb_ic.293CRC(c04fce8e) (Fluke: EFB0)
0x220000-0x22FFFF65536gwb_ic.294CRC(4eda3df5) (Fluke: 7181)
0x230000-0x23FFFF65536gwb_ic.295CRC(6e60c475) (Fluke: CDA8)
0x240000-0x24FFFF65536gwb_ic.296CRC(99b2a557) (Fluke: 7299)
0x250000-0x25FFFF65536gwb_ic.297CRC(10373f63) (Fluke: 67A1)
0x260000-0x26FFFF65536gwb_ic.298CRC(df37ec4d) (Fluke: 36B7)
0x270000-0x27FFFF65536gwb_ic.291CRC(beb07a2e) (Fluke: 645E)
0x280000-0x28FFFF65536gwb_ic.318CRC(9aeaddf9) (Fluke: B13C)
0x290000-0x29FFFF65536gwb_ic.317CRC(1622fadd) (Fluke: 6847)
0x300000-0x30FFFF65536gwb_ic.284CRC(4aa95d66) (Fluke: 707E)
0x310000-0x31FFFF65536gwb_ic.285CRC(3a1f3ce0) (Fluke: DDC8)
0x320000-0x32FFFF65536gwb_ic.286CRC(886e298b) (Fluke: 91D3)
0x330000-0x33FFFF65536gwb_ic.287CRC(b9542e6a) (Fluke: 9BFB)
0x340000-0x34FFFF65536gwb_ic.288CRC(8e620056) (Fluke: 776C)
0x350000-0x35FFFF65536gwb_ic.289CRC(c754d69f) (Fluke: 54E8)
0x360000-0x36FFFF65536gwb_ic.290CRC(306d1963) (Fluke: CEFE)
0x370000-0x37FFFF65536gwb_ic.283CRC(b46e5761) (Fluke: 5E89)
0x380000-0x38FFFF65536gwb_ic.316CRC(655b1518) (Fluke: 8FB8)
0x390000-0x39FFFF65536gwb_ic.315CRC(e7c9b103) (Fluke: 02FC)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF409668705.mcu
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