format  void SCL_SetAutoColChg (Uint32 surface, Uint32 interval, Uint32 index,
  Uint32 numOfCol, Uint32 numOfTbl, Uint32 changeTbl [])
 Input  surface: Screen type
 S  SCL_SPR, SCL_NBG0, SCL_NBG1, SCL_NBG2, SCL_NBG3,
 S  SCL_RBG0, SCL_RBG1
  interval: Interval
  Specify in 1/60 second increments
  index: The beginning of the palette number to be changed
  numOfCol: Number of colors
  numOfTbl: Number of tables
:  changeTbl []: Conversion table
 Output  None
 Function value  None
 Function  A part of the palette is gradually changed toward the specified color for each palette.
  The maximum number of palettes is 256 colors. 2048 colors and 1024 colors are not supported. 

  format  Uint32 = SCL_GetColRamOffset (Uint32 surface)
 Input  surface: Screen type
 S  SCL_SPR, SCL_NBG0, SCL_NBG1, SCL_NBG2, SCL_NBG3,
 S  SCL_RBG0, SCL_RBG1
 Output  None
 Function value  Offset address from VDP2 VRAM
 Function  Gets the color RAM address offset. 

  format  void SCL_SetPriorty (Uint32 surface, Uint8 priority)
 Input  surfaces: Screen type
 S  SCL_SP0 | SCL_SP1 ... SCL_SP7 | SCL_NBG0 | SCL_NBG1 |
 S  SCL_NBG2 | SCL_NBG3 | SCL_RBG0 | SCL_RBG1 | SCL_EXBG
: : Multiple simultaneous specification is possible by using OR operation
  priority: priority number
 Output  None
 Function value  None
 Function  Set priority.