vcslib - Atari 2600 Library Functions for C02 This library contains commonly used functions for the Atari VCS. setclr(&tbl); Sets all four system colors from array tbl, based on the position of the Color/B&W awitch. The array consists of 8 bytes of TIA Color/Luminance values, as follows: Player 0 (Color Mode) Player 1 (Color Mode) Playfield (Color Mode) Background (Color Mode) Player 0 (B&W Mode) Player 1 (B&W Mode) Playfield (B&W Mode) Background (B&W Mode)