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.
Memory Area:numcrash_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x27FF2048ROM
0x3000-0x37FF2048ROM
0x4000-0x43FF1024RAM Write, Sharedpacman_videoram_w, videoram
0x4400-0x47FF1024RAM Write, Sharedpacman_colorram_w, colorram
0x4C00-0x4FEF1008RAM
0x4FF0-0x4FFF16RAM, Sharedspriteram
0x50001Writeirq_mask_w
0x50001Read PortIN0
0x0001Joystick UpActive Low
0x0002Joystick RightActive Low
0x0004Joystick LeftActive Low
0x0008Joystick DownActive Low
0x0010OffActive High
0x0000OnActive High
0x0020UnknownActive Low
0x0040SpecialActive High
0x0080UnknownActive Low
0x50011Device Writenamco, namco_device, pacman_sound_enable_w
0x5040-0x505F32Device Writenamco, namco_device, pacman_sound_w
0x50401Read PortIN1
0x0001Button 1Active Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Coin 1Active Low
0x0040Start 1Active Low
0x0080UnknownActive Low
0x5060-0x506F16Write Only, Sharedspriteram2
0x50801Read PortDSW1
0x0003CoinageActive High
0x00034C_1CActive High
0x00023C_1CActive High
0x00012C_1CActive High
0x00001C_1CActive High
0x000cLivesActive High
0x00001Active High
0x00042Active High
0x00083Active High
0x000c4Active High
0x0010UnknownActive High
0x0010OffActive High
0x0000OnActive High
0x0020UnknownActive High
0x0020OffActive High
0x0000OnActive High
0x0040UnknownActive High
0x0040OffActive High
0x0000OnActive High
0x0080UnknownActive High
0x0080OffActive High
0x0000OnActive High
0x50C01Device Writewatchdog, watchdog_timer_device, reset_w
0x8000-0x9FFF8192ROM
Memory Area:pacman_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384Mirror, ROM0x8000,
0x4000-0x43FF1024Mirror, RAM Write, Shared0xa000, pacman_videoram_w, videoram
0x4400-0x47FF1024Mirror, RAM Write, Shared0xa000, pacman_colorram_w, colorram
0x4800-0x4BFF1024Mirror, Read, Write NOP0xa000, pacman_read_nop,
0x4C00-0x4FEF1008Mirror, RAM0xa000,
0x4FF0-0x4FFF16Mirror, RAM, Shared0xa000, , spriteram
0x50001Mirror, Read Port0xaf3f, IN0
0x0001Joystick UpActive Low
0x0002Joystick RightActive Low
0x0004Joystick LeftActive Low
0x0008Joystick DownActive Low
0x0010OffActive High
0x0000OnActive High
0x0020UnknownActive Low
0x0040SpecialActive High
0x0080UnknownActive Low
0x50001Mirror, Write0xaf38, irq_mask_w
0x50011Mirror, Device Write0xaf38, namco, namco_device, pacman_sound_enable_w
0x50021Mirror, Write NOP0xaf38,
0x50031Mirror, Write0xaf38, pacman_flipscreen_w
0x5004-0x50052Mirror, Write NOP0xaf38, (// AM_WRITE(pacman_leds_w))
0x50061Mirror, Write NOP0xaf38, (// AM_WRITE(pacman_coin_lockout_global_w))
0x50071Mirror, Write0xaf38, pacman_coin_counter_w
0x5040-0x505F32Mirror, Device Write0xaf00, namco, namco_device, pacman_sound_w
0x50401Mirror, Read Port0xaf3f, IN1
0x0001Button 1Active Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020Coin 1Active Low
0x0040Start 1Active Low
0x0080UnknownActive Low
0x5060-0x506F16Mirror, Write Only, Shared0xaf00, , spriteram2
0x5070-0x507F16Mirror, Write NOP0xaf00,
0x50801Mirror, Read Port0xaf3f, DSW1
0x0003CoinageActive High
0x00034C_1CActive High
0x00023C_1CActive High
0x00012C_1CActive High
0x00001C_1CActive High
0x000cLivesActive High
0x00001Active High
0x00042Active High
0x00083Active High
0x000c4Active High
0x0010UnknownActive High
0x0010OffActive High
0x0000OnActive High
0x0020UnknownActive High
0x0020OffActive High
0x0000OnActive High
0x0040UnknownActive High
0x0040OffActive High
0x0000OnActive High
0x0080UnknownActive High
0x0080OffActive High
0x0000OnActive High
0x50801Mirror, Write NOP0xaf3f,
0x50C01Mirror, Read Port0xaf3f, DSW2
0x50C01Mirror, Device Write0xaf3f, watchdog, watchdog_timer_device, reset_w
Memory Area:writeport
Address RangeLengthFunctionDescription
0x00001Writepacman_interrupt_vector_w (/* Pac-Man only */)
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048nc-9.5eCRC(6a30b507)
0x0800-0x0FFF2048nc-11.5hCRC(5f54d8e6)
0x1000-0x17FF2048nc-10.5fCRC(bdd352db)
0x1800-0x1FFF2048nc-12.5jCRC(b104a8a9)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048nc-1.6eCRC(c85a79ba)
0x0800-0x0FFF2048nc-5.6kCRC(20e6c64d)
0x1000-0x17FF2048nc-2.6fCRC(a9d50002)
0x1800-0x1FFF2048nc-6.6mCRC(7b8de692)
0x2000-0x27FF2048nc-3.6hCRC(e47f7cf3)
0x3000-0x37FF2048nc-4.6jCRC(d9dee8cd)
0x8000-0x8FFF4096nc-7.6nCRC(440c67e4)
0x9000-0x9FFF4096nc-8.6pCRC(7dabb3e5)
Memory Area:namco
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2567611p3.1mCRC(a9cc86bf) (Fluke: 71E8)
0x0100-0x01FF2567611p2.3mCRC(77245b66),timing - not used (Fluke: E0E5)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F327051p1.7fCRC(2fc650bd) (Fluke: C358)
0x0020-0x011F2567052.4aCRC(2bc5d339) (Fluke: BD05)
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