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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.
Thunder Cross (Konami, 1988)
Memory Area:scontra_bank5800_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0x0800-0x0FFF2048RAM
Memory Area:scontra_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384Read/Writek052109_051960_r, k052109_051960_w (/* video RAM + sprite RAM */)
0x1F801Writescontra_bankswitch_w (/* bankswitch control + coin counters */)
0x1F841Device Writesoundlatch, generic_latch_8_device, write
0x1F881Writesh_irqtrigger_w (/* cause interrupt on audio CPU */)
0x1F8C1Device Writewatchdog, watchdog_timer_device, reset_w
0x1F901Read PortSYSTEM
0x1F911Read PortP1
0x1F921Read PortP2
0x1F931Read PortDSW3
0x1F941Read PortDSW1
0x1F951Read PortDSW2
0x1F981Read/Write_1f98_r, scontra_1f98_w
0x4000-0x57FF6144RAM
0x5800-0x5FFF2048Devicebank5800, address_map_bank_device, amap8 (/* palette + work RAM + PMC */)
0x6000-0x7FFF8192ROM Bankrombank
0x8000-0xFFFF32768ROM
Memory Area:scontra_sound_map
Address RangeLengthFunctionDescription
0xB000-0xB00D14Device Read/Writek007232, k007232_device, read, write
0xF0001Writek007232_bankswitch_w
Memory Area:thunderx_bank5800_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0x0800-0x0FFF2048RAM
0x1000-0x17FF2048Read/Write, Sharedpmc_r, pmc_w, pmcram
Memory Area:thunderx_map
Address RangeLengthFunctionDescription
0x1F801Writethunderx_videobank_w
0x1F981Read/Write_1f98_r, thunderx_1f98_w (/* registers */)
Memory Area:thunderx_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM
0xA0001Device Readsoundlatch, generic_latch_8_device, read
0xC000-0xC0012Device Read/Writeymsnd, ym2151_device, read, write
 

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
0x0000-0x7FFF32768873-f01.f8CRC(ea35ffa3) (Fluke: 2C45)
0x0000-0x7FFF32768873-f01.f8CRC(ea35ffa3) (Fluke: 2C45)
0x0000-0x7FFF32768873-f01.f8CRC(ea35ffa3) (Fluke: 2C45)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536873-s02.k13CRC(6619333a),banked + fixed ROM (Fluke: C92D)
0x10000-0x1FFFF65536873-s03.k15CRC(2aec2699),banked ROM (Fluke: 4E31)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256873a08.f20CRC(e2d09a1b),priority encoder (not used) (Fluke: 4D14)
0x0000-0x00FF256873a08.f20CRC(e2d09a1b),priority encoder (not used) (Fluke: 4D14)
0x0000-0x00FF256873a08.f20CRC(e2d09a1b),priority encoder (not used) (Fluke: 4D14)
0x0000-0x00FF256873a08.f20CRC(e2d09a1b),priority encoder (not used) (Fluke: 4D14)
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