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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.
Reality Tennis (TCH, 1993)
Memory Area:rltennis_main
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x100000-0x10FFFF65536RAM, Sharednvram
0x200000-0x20FFFF65536RAM
0x700000-0x70000F16Writeblitter_w
0x720000-0x7200012Device Write 8-bitramdac,ramdac_device,index_w,0x00ff
0x720002-0x7200032Device Read/Write 8-bitramdac,ramdac_device,pal_r,pal_w,0x00ff
0x720006-0x7200072Device Write 8-bitramdac,ramdac_device,index_r_w,0x00ff
0x740000-0x7400012Writesnd1_w
0x760000-0x7600012Writesnd2_w
0x780000-0x7800012Write NOP(/* sound control, unknown, usually = 0x0044 */)
0x7A0000-0x7A00034Read NOP(/* unknown, read only at boot time*/)
0x7E0000-0x7E00012Readio_r
0x7E0002-0x7E00032Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 3Active Low
0x0040Button 2Active Low
0xff80UnusedActive Low
 

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
0x0000-0x7FFFF524288tennis_5.u33CRC(067a2e4b)
0x80000-0xFFFFF524288tennis_6.u34CRC(901df2c1)
0x100000-0x17FFFF524288tennis_7.u35CRC(8d70fb37)
0x180000-0x1FFFFF524288tennis_8.u36CRC(26d202ba)
0x200000-0x27FFFF524288tennis_9.u37CRC(1d164ee0)
0x280000-0x2FFFFF524288tennis_10.u38CRC(fd2c6647)
0x300000-0x37FFFF524288tennis_11.u39CRC(a59dc0c8)
0x380000-0x3FFFFF524288tennis_12.u40CRC(b9677887)
0x400000-0x47FFFF524288tennis_13.u41CRC(3d4fbcac)
0x480000-0x4FFFFF524288tennis_14.u42CRC(37fe0f5d)
Memory Area:samples1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288tennis_4.u59CRC(f56462ea)
Memory Area:samples2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288tennis_3.u52CRC(517dcd0e)
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