INT 62 u - FGDRIVER v1.10 - "FG_SETRGB" - SET VIDEO DAC REGISTER CONTENTS
        AX = 001Bh
        BX = palette or DAC register number
        CX = red color component
        DX = green component
        SI = blue component
Notes:  the register number may be negative for Tandy, PCjr, and 200-line
          EGA graphics modes to specify an intense color
        this call has no effect in text, CGA graphics, and Hercules graphics
          modes
SeeAlso: AX=00A5h