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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.
Nyan Nyan Panic (Konami, 1988)
Memory Area:city_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM
0x9800-0x987F128Device Read/Writek051649, k051649_device, k051649_waveform_r, k051649_waveform_w
0x9880-0x988910Device Writek051649, k051649_device, k051649_frequency_w
0x988A-0x988E5Device Writek051649, k051649_device, k051649_volume_w
0x988F1Device Writek051649, k051649_device, k051649_keyonoff_w
0x98E0-0x98FF32Device Read/Writek051649, k051649_device, k051649_test_r, k051649_test_w
0xA000-0xA0012Device Read/Writeymsnd, ym3812_device, read, write
0xB000-0xB00D14Device Read/Writek007232, k007232_device, read, write
0xC0001Writecity_sound_bank_w (/* 7232 bankswitch */)
0xD0001Device Readsoundlatch, generic_latch_8_device, read
Memory Area:nyanpani_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFF131072ROM
0x40000-0x47FFF32768RAM
0x60000-0x61FFF8192Device Read/Write 8-bit, Sharedpalette, palette_device, read, write, 0x00ff, palette
0x70000-0x700012Read PortDSW1
0x0003LivesActive High
0x00032Active High
0x00023Active High
0x00015Active High
0x00007Active High
0x0060DifficultyActive High
0x0060EasyActive High
0x0040NormalActive High
0x0020HardActive High
0x0000HardestActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0x70002-0x700032Read PortIN2
0x70004-0x700052Read PortIN1
0x70006-0x700072Read PortIN0 (/* Coins, start buttons, test mode */)
0x0020Flip_ScreenActive High
0x0020OffActive High
0x0000OnActive High
0x70008-0x700092Read PortDSW0
0x70010-0x700112Device Write 8-bitsoundlatch, generic_latch_8_device, write, 0x00ff
0x70018-0x700192Device Writewatchdog, watchdog_timer_device, reset16_w (/* probably */)
0x78000-0x780012Writesalamand_control_port_word_w (/* irq enable, flipscreen, etc. */)
0x100000-0x13FFFF262144ROM
0x200000-0x200FFF4096RAM Write, Sharednemesis_videoram1_word_w, videoram1 (/* VRAM */)
0x201000-0x201FFF4096RAM Write, Sharednemesis_videoram2_word_w, videoram2
0x202000-0x202FFF4096RAM Write, Sharednemesis_colorram1_word_w, colorram1
0x203000-0x203FFF4096RAM Write, Sharednemesis_colorram2_word_w, colorram2
0x210000-0x21FFFF65536RAM Write, Sharednemesis_charram_word_w, charram
0x300000-0x300FFF4096RAM, Sharedspriteram (/* more sprite ram ??? */)
0x310000-0x3103FF1024Sharedxscroll1
0x310000-0x311FFF8192RAM
0x310400-0x3107FF1024Sharedxscroll2
0x310F00-0x310F7F128Sharedyscroll2
0x310F80-0x310FFF128Sharedyscroll1
 

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
0x0000-0x7FFF32768712-e02.4hCRC(ba76f310) (Fluke: E050)
Memory Area:k007232
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288712-b01.1kCRC(f65b5d95) (Fluke: 7BA4)
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