INT 10 - VIDEO - Compaq SLT/286 - WRITE COLOR MIX REGISTERS
AX = BF08h
CH = bits 7-4 - Green weight
bits 3-0 - Blue weight
CL = bits 7-4 - unused
bits 3-0 - Red weight


10BF08 - VIDEO - Compaq SLT/286 - WRITE COLOR MIX REGISTERS