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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.
Drag Race (Atari (Kee Games), 1977)
Memory Area:dragrace_map
Address RangeLengthFunctionDescription
0x0080-0x00FF128RAM
0x0800-0x083F64Readdragrace_input_r
0x0900-0x091F32Writedragrace_misc_w
0x0920-0x093F32Writedragrace_misc_clear_w
0x0A00-0x0AFF256Write Only, Sharedplayfield_ram
0x0B00-0x0BFF256Write Only, Sharedposition_ram
0x0C001Readdragrace_steering_r
0x0D001Readdragrace_scanline_r
0x0E00-0x0EFF256Device Writewatchdog, watchdog_timer_device, reset_w
0x1000-0x1FFF4096ROM(/* program */)
0xF800-0xFFFF2048ROM(/* program mirror */)
 

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
0x0000-0x01FF5128519dr.j0CRC(aa221ba0) (Fluke: 32C3)
0x0200-0x03FF5128521dr.k0CRC(0cb33f12) (Fluke: 12C2)
0x0400-0x05FF5128520dr.r0CRC(ee1ae6a7) (Fluke: 790E)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256l8.binCRC(3610b453) (Fluke: 4A1E)
0x0000-0x01FF5128515dr.e0CRC(9510a59e) (Fluke: 6DFF)
0x0200-0x03FF5128517dr.h0CRC(8b5bff1f) (Fluke: E690)
0x0400-0x05FF5128516dr.l0CRC(d1e74af1) (Fluke: 5677)
0x0600-0x07FF5128518dr.n0CRC(b1369028) (Fluke: 57D6)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x1000-0x17FF20488513.c1CRC(543bbb30) (Fluke: 3696)
0x1800-0x1FFF20488514.a1CRC(ad218690) (Fluke: 4AB5)
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