Clip Window Control Register

Number	$1C
Readable	Yes
Writable	Yes
Short Description	Controls (resets) the clip-window registers indices.

Write:

Bit	Function
7-3	Reserved, must be 0
2	reset the ULA/LoRes clip-window register index (by writing 1).
1	reset the Sprite clip-window register index (by writing 1).
0	reset the Layer 2 clip-window register index (by writing 1).

Read: ! Bit !! Function |- | 7-6 || Reserved |- | 5-4 || the current Layer 2 clip-window register index |- | 3-2 || the current Sprite clip-window register index |- | 1-0 || the current ULA/LoRes clip-window register index |}

Each read index maps as 0: X1, 1: X2, 2: Y1 and 3: Y2 (the same order how the coordinates are read/written to particular clip-window register).