Memory Area:gfx1
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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.
Sente Diagnostic Cartridge (Bally / Sente, 1984)
Memory Area:cpu1_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM, Sharedspriteram
0x0800-0x7FFF30720RAM Write, Sharedbalsente_videoram_w, videoram
0x8000-0x8FFF4096RAM Write, Sharedbalsente_paletteram_w, paletteram
0x9000-0x90078Writebalsente_adc_select_w
0x9400-0x94012Readbalsente_adc_data_r
0x9800-0x987F128Writebalsente_misc_output_w
0x9880-0x989F32Writebalsente_random_reset_w
0x98A0-0x98BF32Writebalsente_rombank_select_w
0x98C0-0x98DF32Writebalsente_palette_select_w
0x98E0-0x98FF32Device Writewatchdog, watchdog_timer_device, reset_w
0x99001Read PortSWH
0x0003CoinageActive High
0x00022C_1CActive High
0x00031C_1CActive High
0x00011C_2CActive High
0x0000Free_PlayActive High
0x0080Keep Top 5Active High
0x0000Keep AllActive High
0x99011Read PortSWG
0x0003Bonus_LifeActive High
0x0000Every 10,000Active High
0x0001Every 15,000Active High
0x0002Every 20,000Active High
0x0003Every 25,000Active High
0x000cLivesActive High
0x00002Active High
0x00043Active High
0x00084Active High
0x000c5Active High
0x0040DifficultyActive High
0x0040EasyActive High
0x0000HardActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0x99021Read PortIN0
0x0001Joystickleft UpActive Low
0x0002Joystickleft DownActive Low
0x0004Joystickleft RightActive Low
0x0008Joystickleft LeftActive Low
0x0030UnusedActive Low
0x0040Coin 1Active Low
0x99031Read Port, Write NOPIN1,
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004Button 1Active Low
0x0038UnusedActive Low
0x0040Coin 2Active Low
0x0080CustomActive High
0x9A00-0x9A034Readbalsente_random_num_r
0x9A04-0x9A052Read/Writebalsente_m6850_r, balsente_m6850_w
0x9B00-0x9CFF512RAM, Sharednvram (/* system+cart NOVRAM */)
0xA000-0xBFFF8192ROM Bankbank1
0xC000-0xFFFF16384ROM Bankbank2
Memory Area:cpu2_io_map
Address RangeLengthFunctionDescription
0x0000-0x00034Read/Writebalsente_counter_8253_r, balsente_counter_8253_w
0x0008-0x00092Writebalsente_counter_control_w
0x0008-0x000F8Readbalsente_counter_state_r
0x000A-0x000B2Writebalsente_dac_data_w
0x000C-0x000D2Writebalsente_register_addr_w
0x000E-0x000F2Writebalsente_chip_select_w
Memory Area:cpu2_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x5FFF16384RAM
0x6000-0x7FFF8192Writebalsente_m6850_sound_w
0xE000-0xFFFF8192Readbalsente_m6850_sound_r
 

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.   
0x2E000-0x2FFFF8192sdiagef.binCRC(2a39fc53) (Fluke: C518)
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192sdiaggr0.binCRC(5e0ff62a) (Fluke: 34AA)
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