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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.
City Bomber (Konami, 1987)
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:citybomb_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFF131072ROM
0x80000-0x87FFF32768RAM
0xE0000-0xE1FFF8192Device Read/Write 8-bit, Sharedpalette, palette_device, read, write, 0x00ff, palette
0xF0000-0xF00012Read PortDSW1
0x0004CabinetActive High
0x0000UprightActive High
0x0004CocktailActive High
0x0018LongActive High
0x0010NormalActive High
0x0008ShortActive High
0x0000Very ShortActive High
0x0060DifficultyActive High
0x0060EasyActive High
0x0040NormalActive High
0x0020HardActive High
0x0000HardestActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0xF0002-0xF00032Read PortIN2
0xF0004-0xF00052Read PortIN1
0x0000HandleActive High
0x0080JoystickActive High
0xF0006-0xF00072Read PortIN0 (/* Coins, start buttons, test mode */)
0x0020Flip_ScreenActive High
0x0000OffActive High
0x0020OnActive High
0x0040SingleActive High
0x0000DualActive High
0xF0008-0xF00092Read PortDSW0
0xF0010-0xF00112Device Write 8-bitsoundlatch, generic_latch_8_device, write, 0x00ff
0xF0018-0xF00192Device Writewatchdog, watchdog_timer_device, reset16_w (/* probably */)
0xF0020-0xF00212Read, Write NOPselected_ip_word_r, (/* WEC Le Mans 24 control? */)
0xF8000-0xF80012Writesalamand_control_port_word_w (/* irq enable, flipscreen, etc. */)
0x100000-0x1BFFFF786432ROM
0x200000-0x20FFFF65536RAM Write, Sharednemesis_charram_word_w, charram
0x210000-0x210FFF4096RAM Write, Sharednemesis_videoram1_word_w, videoram1 (/* VRAM */)
0x211000-0x211FFF4096RAM Write, Sharednemesis_videoram2_word_w, videoram2
0x212000-0x212FFF4096RAM Write, Sharednemesis_colorram1_word_w, colorram1
0x213000-0x213FFF4096RAM Write, Sharednemesis_colorram2_word_w, colorram2
0x300000-0x3003FF1024Sharedxscroll1
0x300000-0x301FFF8192RAM
0x300400-0x3007FF1024Sharedxscroll2
0x300F00-0x300F7F128Sharedyscroll2
0x300F80-0x300FFF128Sharedyscroll1
0x310000-0x310FFF4096RAM, Sharedspriteram (/* more sprite ram ??? */)
 

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
0x0000-0x7FFF32768787-e02.4hCRC(f4591e46) (Fluke: 95F4)
0x0000-0x7FFF32768787-e02.4hCRC(f4591e46) (Fluke: 95F4)
Memory Area:k007232
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288787-e01.1kCRC(edc34d01) (Fluke: D3A0)
0x0000-0x7FFFF524288787-e01.1kCRC(edc34d01) (Fluke: D3A0)
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