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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.
Tatakae! Big Fighter (Nichibutsu, 1989)
Memory Area:bigfghtr_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x80000-0x805FF1536RAM, Sharedspriteram
0x80600-0x83FFF14848Read/Write, Sharedsharedram_r, sharedram_w, sharedram
0x84000-0x85FFF8192RAM(//work ram)
0x86000-0x86FFF4096RAM Write, Sharedarmedf_bg_videoram_w, bg_videoram
0x87000-0x87FFF4096RAM Write, Sharedarmedf_fg_videoram_w, fg_videoram
0x88000-0x89FFF8192Read/Write 8-bitarmedf_text_videoram_r,armedf_text_videoram_w,0x00ff
0x8A000-0x8AFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0x8B000-0x8BFFF4096RAM, Sharedspr_pal_clut
0x8C000-0x8C0012Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080UnknownActive Low
0x0100Start 1Active Low
0x0200Start 2Active Low
0x0400Coin 1Active Low
0x0800Coin 2Active Low
0xf000UnknownActive Low
0x8C002-0x8C0032Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080UnknownActive Low
0x0100Service 1Active Low
0x0400TiltActive Low
0xf800UnknownActive Low
0x8C004-0x8C0052Read PortDSW0
0x00033Active High
0x00024Active High
0x00015Active High
0x00006Active High
0x000c20k then every 60kActive High
0x000420k then every 80kActive High
0x000840k then every 60kActive High
0x000040k then every 80kActive High
0x0000OffActive High
0x0010OnActive High
0x0000UprightActive High
0x0020CocktailActive High
0x00c0EasyActive High
0x0080NormalActive High
0x0040HardActive High
0x0000HardestActive High
0x8C006-0x8C0072Read PortDSW1
0x00012C_1CActive High
0x00031C_1CActive High
0x00021C_2CActive High
0x0000Free_PlayActive High
0x00042C_1CActive High
0x000c1C_1CActive High
0x00002C_3CActive High
0x00081C_2CActive High
0x0030NoActive High
0x00203 TimesActive High
0x00105 TimesActive High
0x0000YesActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x8D000-0x8D0012Writeterraf_io_w (//807b0)
0x8D002-0x8D0032Writearmedf_bg_scrollx_w
0x8D004-0x8D0052Writearmedf_bg_scrolly_w
0x8D006-0x8D0072Writearmedf_fg_scrollx_w
0x8D008-0x8D0092Writearmedf_fg_scrolly_w
0x8D00A-0x8D00B2Writesound_command_w
0x8D00C-0x8D00D2Write NOP(//watchdog)
0x8D00E-0x8D00F2Writeirq_lv1_ack_w
0x400000-0x4000012Readlatch_r
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0xF7FF63488ROM
0xF800-0xFFFF2048RAM
Memory Area:sound_portmap
Address RangeLengthFunctionDescription
0x0000-0x00012Device Writeymsnd, ym3812_device, write
0x00021Device Writedac1, dac_byte_interface, write
0x00031Device Writedac2, dac_byte_interface, write
0x00041Readsoundlatch_clear_r
0x00061Device Readsoundlatch, generic_latch_8_device, read
 

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
0x0000-0xFFFF655368.17kCRC(0aeab61e) (Fluke: DB34)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF327687.11cCRC(1809e79f) (Fluke: 2C64)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF1310725.13fCRC(d440a29f) (Fluke: C4AA)
0x20000-0x2FFFF655366.15fCRC(27469a76) (Fluke: 67B5)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF6553612.8aCRC(a5694ea9) (Fluke: 877E)
0x10000-0x1FFFF6553611.6aCRC(10b74e2c) (Fluke: 0BAE)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF1310729.8dCRC(fe67800e) (Fluke: 099F)
0x20000-0x3FFFF13107210.9dCRC(dcb828c4) (Fluke: 6BB3)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096i8751.mcu
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256tf.13hCRC(81244757),Prom is a N82S129AN type (Fluke: 6706)
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