Compatibility: VGA
Expects: AX    101aH
                                                                  
Returns: BH    current active DAC color page
BL    current active DAC paging mode
                                                                  
Info: Obtains the current settings in use for DAC color paging.  On
return:

BL 00H = mode 0 (4 blocks of 64 registers)
01H = mode 1 (16 blocks of 16 registers

BH active page number (0-3 in mode 0 or 0-15 in mode 1)

See INT 10H 1013H (DAC color paging fns) for related info.

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INT 10H 101aH: Query DAC Color Paging State