MEM 0040h:0066h - VIDEO - CURRENT SETTING OF CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also HGC, MDA. PALETTE REGISTER Size: BYTE Desc: contains the last value written to I/O port 03D9h SeeAlso: MEM 0040h:0063h,MEM 0040h:0065h,INT 10h/AH=0Bh/BH=01h Bitfields for CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also HGC, MDA. palette register: Bit(s) Description (Table M0019) 7-6 unused 5 palette (0/1) 4 intense background colors in text mode 3 intense border color (40x25) / background color (mode 5) 2 red 1 green 0 blue