[MAME]

Super Speed Race Junior (Taito 1985)

HW info :

	0000-7fff ROM
	c000-dfff VRAM ( 4 tilemaps (4 x $800) )
	e000-e7ff RAM
	e800-efff SCROLL RAM
	f003      ??
  f400-f401 AY 8910
  fc00      ??
  f800      ??

 Scroll RAM contains x and y offsets for each tileline,
 as well as other data (priroities ? additional flags ?)
 All moving obejcts (cars, etc) are displayed on tilemap 3.

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 Cheat :  $e210 - timer

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