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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.
Wyvern F-0 (Taito, 1985)
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0xC000-0xC7FF2048RAM
0xC800-0xC8012Device Writeay1, ym2149_device, address_data_w
0xC802-0xC8032Device Writeay2, ym2149_device, address_data_w
0xC900-0xC90D14Device Writemsm, msm5232_device, write
0xD0001Device Read/Writesoundlatch, generic_latch_8_device, read, write
0xD2001Writenmi_enable_w
0xD4001Writenmi_disable_w
0xD6001RAM(// VOL/BAL?)
0xE000-0xEFFF4096ROM(// space for diagnostics ROM)
Memory Area:wyvernf0_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x8FFF4096RAM
0x9000-0x9FFF4096RAM Bankrambank
0xA000-0xBFFF8192ROM Bankrombank
0xC000-0xC7FF2048RAM Write, Sharedfgram_w, fgram
0xC800-0xCFFF2048RAM Write, Sharedbgram_w, bgram
0xD0001Write NOP(// d000 write (02))
0xD1001Writerambank_w
0xD2001Writerombank_w
0xD300-0xD3034RAM, Sharedscrollram
0xD4001Read/Writefake_mcu_r, fake_mcu_w
0xD4011Readfake_status_r
0xD500-0xD5FF256RAM, Sharedspriteram
0xD6001Read PortDSW1
0x0000?? 0Active High
0x0001?? 1Active High
0x0002?? 2Active High
0x0003?? 3Active High
0x0004OffActive High
0x0000OnActive High
0x00002Active High
0x00083Active High
0x00104Active High
0x00185Active High
0x0040OffActive High
0x0000OnActive High
0x0000UprightActive High
0x0080CocktailActive High
0xD6011Read PortDSW2
0x000f9C_1CActive High
0x000e8C_1CActive High
0x000d7C_1CActive High
0x000c6C_1CActive High
0x000b5C_1CActive High
0x000a4C_1CActive High
0x00093C_1CActive High
0x00082C_1CActive High
0x00001C_1CActive High
0x00011C_2CActive High
0x00021C_3CActive High
0x00031C_4CActive High
0x00041C_5CActive High
0x00051C_6CActive High
0x00061C_7CActive High
0x00071C_8CActive High
0x00f09C_1CActive High
0x00e08C_1CActive High
0x00d07C_1CActive High
0x00c06C_1CActive High
0x00b05C_1CActive High
0x00a04C_1CActive High
0x00903C_1CActive High
0x00802C_1CActive High
0x00001C_1CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x00301C_4CActive High
0x00401C_5CActive High
0x00501C_6CActive High
0x00601C_7CActive High
0x00701C_8CActive High
0xD6021Read PortDSW3
0x00000Active High
0x00011Active High
0x00022Active High
0x00033Active High
0x0008OffActive High
0x0000OnActive High
0x0000NoActive High
0x0010YesActive High
0x0000Taito CorporationActive High
0x0020Taito Corp. 1985Active High
0x0040OffActive High
0x0000OnActive High
0x00001Active High
0x00802Active High
0xD6031Read PortSYSTEM
0x0001Start 1Active High
0x0002Start 2Active High
0x0004Service 1Active High
0x0008TiltActive High
0x0010Coin 1Active High
0x0020Coin 2Active High
0x0040UnknownActive Low
0x0080UnknownActive Low
0xD6041Read PortJOY1
0x0001UnknownActive High
0x0002UnknownActive High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Joystick DownActive High
0x0020Joystick UpActive High
0x0040UnknownActive High
0x0080UnknownActive High
0xD6051Read PortFIRE1
0x0001UnknownActive High
0x0002UnknownActive High
0x0004UnknownActive High
0x0008Button 3Active High
0x0010Button 2Active High
0x0020Button 1Active High
0x0040UnknownActive High
0x0080UnknownActive High
0xD6061Read PortJOY2
0x0001UnknownActive High
0x0002UnknownActive High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Joystick DownActive High
0x0020Joystick UpActive High
0x0040UnknownActive High
0x0080UnknownActive High
0xD6071Read PortFIRE2
0x0001UnknownActive High
0x0002UnknownActive High
0x0004UnknownActive High
0x0008Button 3Active High
0x0010Button 2Active High
0x0020Button 1Active High
0x0040UnknownActive High
0x0080UnknownActive High
0xD6101Device Read, Writesoundlatch, generic_latch_8_device, read, sound_command_w
0xD800-0xDBFF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0xDC001Write NOP(// irq ack?)
 

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
0x0000-0x3FFF16384a39_16.ic26CRC(5a681fb4)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384a39_01-1.ic37CRC(a94887ec)
0x4000-0x7FFF16384a39_02-1.ic36CRC(171cfdbe)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048a39_mcu.icxx
Memory Area:rombank
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384a39_03.ic35CRC(50314281)
0x4000-0x7FFF16384a39_04.ic34CRC(7a225bf9)
0x8000-0xBFFF16384a39_05.ic33CRC(41f21a67)
0xC000-0xFFFF16384a39_06.ic32CRC(deb2d850)
Memory Area:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384a39_11.ic99CRC(af70e1dc)
0x4000-0x7FFF16384a39_10.ic78CRC(a84380fb)
0x8000-0xBFFF16384a39_09.ic96CRC(c0cee243)
0xC000-0xFFFF16384a39_08.ic75CRC(0ad69501)
Memory Area:tiles
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192a39_14.ic99CRC(90a66147)
0x2000-0x3FFF8192a39_14.ic73CRC(a31f3507)
0x4000-0x5FFF8192a39_13.ic100CRC(be708238)
0x6000-0x7FFF8192a39_12.ic74CRC(1cc389de)
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