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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.
Momoko 120% (Jaleco, 1986)
Memory Area:momoko_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xCFFF4096RAM
0xD064-0xD0FF156RAM, Sharedspriteram
0xD4001Read Port, Write NOPIN0, (/* interrupt ack? */)
0x0080Start 2Active Low
0x0040Start 1Active Low
0x0020Button 2Active Low
0x0010Button 1Active Low
0x0008Joystick LeftActive Low
0x0004Joystick RightActive Low
0x0002Joystick DownActive Low
0x0001Joystick UpActive Low
0xD4021Read Port, WriteIN1, momoko_flipscreen_w
0x0080UnknownActive Low
0x0040UnknownActive Low
0x0020Button 2Active Low
0x0010Button 1Active Low
0x0008Joystick LeftActive Low
0x0004Joystick RightActive Low
0x0002Joystick DownActive Low
0x0001Joystick UpActive Low
0xD4041Device Writewatchdog, watchdog_timer_device, reset_w
0xD4061Read Port, Device WriteDSW0, soundlatch, generic_latch_8_device, write
0x00033Active High
0x00024Active High
0x00015Active High
0x0000255 (Cheat)Active High
0x00105C_1CActive High
0x00143C_1CActive High
0x00182C_1CActive High
0x001c1C_1CActive High
0x000c1C_2CActive High
0x00042C_5CActive High
0x00081C_5CActive High
0x0000Free_PlayActive High
0x0040EasyActive High
0x0060NormalActive High
0x0020HardActive High
0x0000HardestActive High
0x0080Coin 1Active Low
0xD4071Read PortDSW1
0x000120kActive High
0x000330kActive High
0x000250kActive High
0x0000100kActive High
0x0000UprightActive High
0x0010CocktailActive High
0x0000OffActive High
0x0020OnActive High
0xD800-0xDBFF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0xDC001Writemomoko_fg_scrolly_w
0xDC011Writemomoko_fg_scrollx_w
0xDC021Writemomoko_fg_select_w
0xE000-0xE3FF1024RAM, Sharedvideoram
0xE8001Writemomoko_text_scrolly_w
0xE8011Writemomoko_text_mode_w
0xF000-0xFFFF4096ROM Bankbank1
0xF000-0xF0012Write, Sharedmomoko_bg_scrolly_w, bg_scrolly
0xF002-0xF0032Write, Sharedmomoko_bg_scrollx_w, bg_scrollx
0xF0041Writemomoko_bg_read_bank_w
0xF0061Writemomoko_bg_select_w
0xF0071Writemomoko_bg_priority_w
Memory Area:momoko_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM
0x90001Write NOP(/* unknown */)
0xA000-0xA0012Device Read/Writeym1, ym2203_device, read, write
0xB0001Write NOP(/* unknown */)
0xC000-0xC0012Device Read/Writeym2, ym2203_device, read, write
 

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
0x0000-0x7FFF32768momoko01.binCRC(e8a6673c) (Fluke: AF8B)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192momoko13.binCRC(2745cf5a) (Fluke: 1088)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192momoko14.binCRC(cfccca05) (Fluke: CECD)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768momoko03.binCRC(386e26ed) (Fluke: 2C77)
0x8000-0xBFFF16384momoko02.binCRC(4255e351) (Fluke: 725E)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256momoko-c.binCRC(f35ccae0) (Fluke: 41C7)
0x0100-0x011F32momoko-b.binCRC(427b0e5c) (Fluke: 22AC)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768momoko04.binCRC(3ab3c2c3) (Fluke: CB41)
0x8000-0xFFFF32768momoko05.binCRC(757cdd2b) (Fluke: 2FD0)
0x10000-0x17FFF32768momoko06.binCRC(20cacf8b) (Fluke: 27CA)
0x18000-0x1FFFF32768momoko07.binCRC(b94b38db) (Fluke: 60EB)
Memory Area:user2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192momoko08.binCRC(69b41702) (Fluke: 4B70)
Memory Area:user3
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384momoko15.binCRC(8028f806) (Fluke: 2501)
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