Palettes

There are 2 banks of 256 palettes of 16 colors available, made of 16bit RGB definitions. Palettes are located at $400000 in the 68k's memory map.

The bank used for video output is set by registers REG_PALBANK1 ($3A000F) and REG_PALBANK0 ($3A001F).

Only one bank can be used at a time. They can be switched by using register ???

Color definition word: D R0 G0 B0 R4 R3 R2 R1 G4 G3 G2 G1 B4 B3 B2 B1

Bit	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Def	Dark bit	R0	G0	B0	R4	R3	R2	R1	G4	G3	G2	G1	B4	B3	B2	B1

Sprite tiles can use any of the 256 palettes, while fix tiles can only use the 16 firsts.

Max colors on screen without RLI tricks: 256*16=4096 out of 2^16=65536.

Palettes are stored in Palette RAM.

Last color of palette bank: backdrop color. First color of palette bank: reference color for the video output (during H and V blank ?). Has to be $8000 (black).