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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.
Rebus (Microhard, 1995)
Memory Area:roldfrog_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFFF4194304ROM(/* ROM */)
0x400000-0x407FFF32768ROM, Sharedprotdata (/* Protection Data */)
0x408000-0x4087FF2048RAM(/* Extra Ram */)
0x800000-0x83FFFF262144RAM, Sharedpixelram (/* Pixel Layer */)
0x840000-0x8400012Read PortDSW1
0x840002-0x8400032Read PortDSW2
0x840004-0x8400052Read PortP1
0x840006-0x8400072Read PortP2
0x84000A-0x84003B50Writecoin_w (/* Coin Counters + Coin Lockout */)
0x84000E-0x84000F2Writeroldf_sh_irqtrigger_w (/* Sound command */)
0x880000-0x8817FF6144RAM Write, Sharedvram_w, videoram (/* Video RAM */)
0x881800-0x8818034RAM, Sharedvregs (/* Scroll registers */)
0x881804-0x881FFF2044RAM(/* Work RAM */)
0x8C0000-0x8C0FFF4096RAM Device Write, Sharedpalette, palette_device, write, palette (/* Palette is xRRRRxGGGGxBBBBx */)
0xA00000-0xA000012Readroldfrog_bombs_r
0xD00000-0xD00FFF4096RAM, Sharedspriteram (/* Sprite RAM */)
0xE00000-0xE000012Write Only, Sharedbitmap_mode (/* Bitmap Mode? */)
0xFFC000-0xFFFFFF16384RAM(/* Work RAM */)
Memory Area:roldfrog_sound_io_map
Address RangeLengthFunctionDescription
0x0000-0x00FF256Readroldfrog_unk_r
0x0010-0x00112Device Read/Writeymsnd, ym2203_device, read, write
0x00311Writesound_bank_w
0x00371Writeroldfrog_vblank_ack_w
0x00401Read/Write NOP
0x00701Device Readsoundlatch, generic_latch_8_device, read
Memory Area:roldfrog_sound_map
Address RangeLengthFunctionDescription
0x0000-0x6FFF28672ROM
0x7000-0x7FFF4096RAM
0x8000-0xFFFF32768ROM, ROM Banksound_bank
 

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
0x0000-0xFFFF655361.u163CRC(88a7b1f8) (Fluke: 65AC)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF13107210.u102CRC(6f75a28b) (Fluke: 1D79)
0x20000-0x3FFFF13107211.u103CRC(0af65b78) (Fluke: A80F)
0x40000-0x5FFFF13107212.u104CRC(3ed6ce19) (Fluke: 3DC2)
0x60000-0x7FFFF13107213.u105CRC(8b54553d) (Fluke: C741)
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