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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.
Big Event Golf (Taito America Corporation, 1986)
Memory Area:bigevglf_portmap
Address RangeLengthFunctionDescription
0x00001Write NOP(/* video ram enable ???*/)
0x00011Writebigevglf_gfxcontrol_w (/* plane select */)
0x00021Writebeg_banking_w
0x00031Writebeg13_a_set_w
0x00041Writebeg13_b_clr_w
0x00051Writebigevglf_vidram_addr_w (/* video banking (256 banks) for f000-f0ff area */)
0x00061Readbeg_status_r
Memory Area:bigevglf_sub_portmap
Address RangeLengthFunctionDescription
0x00001Read PortPORT00
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004Button 1Active Low
0x0008Button 1Active Low
0x0010Start 2Active Low
0x0020Start 1Active Low
0x0040TiltActive Low
0x0080Service 1Active Low
0x00011Read NOP
0x00021Readbeg_trackball_x_r
0x00031Readbeg_trackball_y_r
0x00041Readsub_cpu_mcu_coin_port_r
0x00051Read PortDSW1
0x0001CabinetActive High
0x0000UprightActive High
0x0001CocktailActive High
0x0002Flip_ScreenActive High
0x0002OffActive High
0x0000OnActive High
0x0008Demo_SoundsActive High
0x0000OffActive High
0x0008OnActive High
0x00f0CoinageActive High
0x00502C_1CActive High
0x00f01C_1CActive High
0x00002C_3CActive High
0x00a01C_2CActive High
0x00061Read PortDSW2
0x0003DifficultyActive High
0x0001EasyActive High
0x0003NormalActive High
0x0002HardActive High
0x0000HardestActive High
0x00041Active High
0x00082Active High
0x000c3Active High
0x00004Active High
0x0010LanguageActive High
0x0000EnglishActive High
0x0010JapaneseActive High
0x00e03Active High
0x00c04Active High
0x00a05Active High
0x00806Active High
0x00607Active High
0x00408Active High
0x00209Active High
0x000010Active High
0x00071Read NOP
0x00081Writebeg_port08_w (/* muxed port select + other unknown stuff */)
0x000B1Readbigevglf_mcu_r
0x000C1Writebigevglf_mcu_w
0x000E1Write NOP(/* 0-enable MCU, 1-keep reset line ASSERTED; D0 goes to the input of ls74 and the /Q of this ls74 goes to reset line on 68705 */)
0x0010-0x00178Writebeg13_a_clr_w
0x0018-0x001F8Writebeg13_b_set_w
0x00201Read/Writebeg_fromsound_r, sound_command_w
0x00211Readbeg_soundstate_r
Memory Area:m68705_map
Address RangeLengthFunctionDescription
0x00001Read/Writebigevglf_68705_port_a_r, bigevglf_68705_port_a_w
0x00011Read/Writebigevglf_68705_port_b_r, bigevglf_68705_port_b_w
0x00021Read/Writebigevglf_68705_port_c_r, bigevglf_68705_port_c_w
0x00041Writebigevglf_68705_ddr_a_w
0x00051Writebigevglf_68705_ddr_b_w
0x00061Writebigevglf_68705_ddr_c_w
0x0010-0x007F112RAM
0x0080-0x07FF1920ROM
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xCFFF4096RAM
0xD000-0xD7FF2048ROM Bankbank1
0xD800-0xDBFF1024RAM, Sharedshare1 (/* only half of the RAM is accessible, line a10 of IC73 (6116) is GNDed */)
0xE000-0xE7FF2048Write, Sharedbigevglf_palette_w, paletteram
0xE800-0xEFFF2048Write Only, Sharedspriteram1 (/* sprite 'templates' */)
0xF000-0xF0FF256Read/Writebigevglf_vidram_r, bigevglf_vidram_w (/* 41464 (64kB * 8 chips), addressed using ports 1 and 5 */)
0xF840-0xF8FF192RAM, Sharedspriteram2 (/* spriteram (x,y,offset in spriteram1,palette) */)
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xC7FF2048RAM
0xC800-0xC8012Device Writeaysnd, ay8910_device, address_data_w
0xCA00-0xCA0D14Device Writemsm, msm5232_device, write
0xCC001Write NOP
0xCE001Write NOP
0xD8001Read/Writesound_command_r, beg_fromsound_w (/* write to D800 sets bit 1 in status */)
0xDA001Read/Writesoundstate_r, nmi_enable_w
0xDC001Writenmi_disable_w
0xDE001Write NOP
0xE000-0xEFFF4096Read NOP(/* space for diagnostics ROM */)
Memory Area:sub_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM
0x8000-0x83FF1024RAM, Sharedshare1 (/* shared with main CPU */)
 

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
0x0000-0x3FFF16384a67-16CRC(5fb6d22e) (Fluke: E7CC)
0x4000-0x7FFF16384a67-17CRC(9f57deae) (Fluke: B0CB)
0x8000-0xBFFF16384a67-18CRC(40d54fed) (Fluke: AA4B)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768a67-12CRC(980cc3c5) (Fluke: 83D9)
0x8000-0xFFFF32768a67-13CRC(ad6e04af) (Fluke: FEB7)
0x10000-0x17FFF32768a67-14CRC(d6708cce) (Fluke: CEEE)
0x18000-0x1FFFF32768a67-15CRC(1d261428) (Fluke: 66E0)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768a67-21CRC(2a62923d) (Fluke: D7A7)
0x8000-0xBFFF16384a67-20CRC(841561b1) (Fluke: 0B48)
0x10000-0x17FFF32768a67-03CRC(695b3396) (Fluke: C1C2)
0x18000-0x1FFFF32768a67-04CRC(b8941902) (Fluke: BB6C)
0x20000-0x27FFF32768a67-05CRC(681f5f4f) (Fluke: 6DC6)
0x28000-0x2FFFF32768a67-06CRC(026f6fe5) (Fluke: 5396)
0x30000-0x37FFF32768a67-07CRC(27706bed) (Fluke: 45B4)
0x38000-0x3FFFF32768a67-08CRC(e922023a) (Fluke: 646E)
0x40000-0x47FFF32768a67-09CRC(a9d4263e) (Fluke: 6D91)
0x48000-0x4FFFF32768a67-10CRC(7c35f4a3) (Fluke: 117E)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048a67_19-1CRC(25691658) (Fluke: 527D)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384a67-11CRC(a2660d20) (Fluke: 434F)
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