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:blockcar_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM(// ROM)
0x100000-0x1000012Write NOP(// ? 1 (start of interrupts, main loop: watchdog?))
0x200000-0x2000012Write NOP(// ? 0/1 (IRQ acknowledge?))
0x300000-0x3000034Readseta_dsw_r (// DSW)
0x400000-0x4000012RAM Write, Sharedseta_vregs_w, vregs (// Coin Lockout + Sound Enable (bit 4?))
0x500000-0x5000012Read PortP1 (// P1)
0x500002-0x5000032Read PortP2 (// P2)
0x500004-0x5000052Read PortCOINS (// Coins)
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Service 1Active Low
0x0008TiltActive Low
0x0010Thunder & Lightning 2Active High
0x0000Block CarnivalActive High
0xA00000-0xA03FFF16384Device Read/Writex1snd, x1_010_device, word_r, word_w (// Sound)
0xB00000-0xB003FF1024RAM, Sharedpaletteram (// Palette)
0xC00000-0xC03FFF16384RAM, Device Read/Writespritegen, seta001_device, spritecode_r16, spritecode_w16 (// Sprites Code + X + Attr)
0xE00600-0xE006078RAM, Device Read/Writespritegen, seta001_device, spritectrl_r16, spritectrl_w16
0xF00000-0xF03FFF16384RAM(// RAM)
0xF04000-0xF041FF512RAM(// Backup RAM?)
0xF05000-0xF050FF256RAM(// Backup RAM?)
 

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
0x0000-0x7FFFF524288bl-chr-0.j3CRC(a33300ca) (Fluke: 970C)
0x80000-0xFFFFF524288bl-chr-1.l3CRC(563de808) (Fluke: D06E)
Memory Area:x1snd
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288bl-snd-0.a13CRC(a92dabaf) (Fluke: AB88)
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