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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.
Konami's Ping-Pong (Konami, 1985)
Memory Area:pingpong_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x83FF1024RAM Write, Sharedpingpong_colorram_w, colorram
0x8400-0x87FF1024RAM Write, Sharedpingpong_videoram_w, videoram
0x9000-0x90023RAM
0x9003-0x905280RAM, Sharedspriteram
0x9053-0x97FF1965RAM
0xA0001Writecoin_w (/* coin counters + irq enables */)
0xA2001Write NOP(/* SN76496 data latch */)
0xA4001Device Writesnsnd, sn76496_device, write (/* trigger read */)
0xA6001Device Writewatchdog, watchdog_timer_device, reset_w
0xA8001Read PortSYSTEM
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0008Start 2Active Low
0x0010Start 1Active Low
0x0020Service 1Active Low
0x0040Coin 2Active Low
0x0080Coin 1Active Low
0xA8801Read PortINPUTS
0x0001Button 2Active Low
0x0002Joystick LeftActive Low
0x0004Joystick RightActive Low
0x0008Button 1Active Low
0x0010Button 2Active Low
0x0020Joystick LeftActive Low
0x0040Joystick RightActive Low
0x0080Button 1Active Low
0xA9001Read PortDSW1
0x000fCoin_BActive High
0x00044C_1CActive High
0x000a3C_1CActive High
0x00012C_1CActive High
0x00023C_2CActive High
0x00084C_3CActive High
0x000f1C_1CActive High
0x000c3C_4CActive High
0x000e2C_3CActive High
0x00071C_2CActive High
0x00062C_5CActive High
0x000b1C_3CActive High
0x00031C_4CActive High
0x000d1C_5CActive High
0x00051C_6CActive High
0x00091C_7CActive High
0x0000Free_PlayActive High
0x00f0Coin_AActive High
0x00404C_1CActive High
0x00a03C_1CActive High
0x00102C_1CActive High
0x00203C_2CActive High
0x00804C_3CActive High
0x00f01C_1CActive High
0x00c03C_4CActive High
0x00e02C_3CActive High
0x00701C_2CActive High
0x00602C_5CActive High
0x00b01C_3CActive High
0x00301C_4CActive High
0x00d01C_5CActive High
0x00501C_6CActive High
0x00901C_7CActive High
0x0000Free_PlayActive High
0xA9801Read PortDSW2
0x0001Demo_SoundsActive High
0x0001OffActive High
0x0000OnActive High
0x0006DifficultyActive High
0x0006EasyActive High
0x0002NormalActive High
0x0004DifficultActive High
0x0000Very_DifficultActive High
0x00f8UnusedActive Low
 

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
0x0000-0x1FFF8192pp_e01.romCRC(d1d6f090) (Fluke: DBF2)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192pp_e02.romCRC(33c687e0) (Fluke: A181)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384pp_e04.romCRC(18552f8f) (Fluke: E242)
0x4000-0x7FFF16384pp_e03.romCRC(ae5f01e8) (Fluke: 76C4)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32pingpong.3jCRC(3e04f06e),palette (this might be bad) (Fluke: C50C)
0x0020-0x011F256pingpong.5hCRC(8456046a),characters (Fluke: 94E1)
0x0120-0x021F256pingpong.11jCRC(09d96b08),sprites (Fluke: E3B0)
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