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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.
Basketball (Atari, 1979)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x01FF512RAM(/* Zero Page RAM */)
0x08001Readbsktball_in0_r
0x08021Read PortIN1
0x0001CustomActive High
0x0002TiltActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0020UnknownActive Low
0x0040Coin 2Active Low
0x0080Coin 1Active Low
0x08031Read PortDSW
0x0007Free_PlayActive High
0x00062:30Active High
0x00052:00Active High
0x00041:30Active High
0x00031:15Active High
0x00020:45Active High
0x00010:30Active High
0x00001:00Active High
0x0018CoinageActive High
0x00001C_1CActive High
0x00101C_4CActive High
0x00081C_5CActive High
0x00181C_6CActive High
0x0020Two Coin MinimumActive High
0x0000One Coin MinimumActive High
0x00c0LanguageActive High
0x00c0GermanActive High
0x0080FrenchActive High
0x0040SpanishActive High
0x0000EnglishActive High
0x10001Write NOP(/* Timer Reset */)
0x10101Writebsktball_bounce_w (/* Crowd Amp / Bounce */)
0x1022-0x10232Write NOP(/* Coin Counter */)
0x1024-0x10252Writebsktball_led1_w (/* LED 1 */)
0x1026-0x10272Writebsktball_led2_w (/* LED 2 */)
0x1028-0x10292Writebsktball_ld1_w (/* LD 1 */)
0x102A-0x102B2Writebsktball_ld2_w (/* LD 2 */)
0x102C-0x102D2Writebsktball_noise_reset_w (/* Noise Reset */)
0x102E-0x102F2Writebsktball_nmion_w (/* NMI On */)
0x10301Writebsktball_note_w (/* Music Ckt Note Dvsr */)
0x1800-0x1BBF960RAM Write, Sharedbsktball_videoram_w, videoram (/* DISPLAY */)
0x1BC0-0x1BFF64RAM, Sharedmotion
0x1C00-0x1CFF256RAM
0x2000-0x3FFF8192ROM(/* PROGRAM */)
 

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
0x0000-0x07FF2048034757.a6CRC(010e8ad3) (Fluke: 9D69)
0x0800-0x0FFF2048034758.b6CRC(f7bea344) (Fluke: 098E)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x2000-0x27FF2048034765.d1CRC(798cea39) (Fluke: 2F5D)
0x2800-0x2FFF2048034764.c1CRC(a087109e) (Fluke: C550)
0x3000-0x37FF2048034766.f1CRC(a82e9a9f) (Fluke: 0446)
0x3800-0x3FFF2048034763.b1CRC(1fc69359) (Fluke: 3E0B)
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