INT 62 u - FGDRIVER v3.03 - "FG_PALETTE" - SET PALETTE / SET VIDEO DAC REGISTER
        AX = 006Fh
---CGA 4-color graphics---
        BX = CGA paletee number
        CX = background color
---CGA 2-color graphics---
        BX ignored
        CX = foreground color
---16-color graphics---
        BX = palette register number
        CX = palette value
---256-color graphics---
        BX = DAC register number
        CX =  DAC value
Notes:  For FGDRIVER v1.10, this function was "FG_INTKEY" (see AX=0051h);
           "FG_PALETTE" was AX=0017h
        This function is ignored in text modes and Hercules graphics modes
        Few EGA/VGA adapters correctly set the foreground color in CGA mode 6
SeeAlso: AX=0035h,AX=0042h,AX=0070h,AX=008Eh

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