Returns the color register paging mode and current color page.
Call with:
AH = 10H
AL = 1AH
Returns:
BH = color page
BL = paging mode
00H if 4 pages of 64 registers
01H if 16 pages of 16 registers
Note:
See Int 10H Function 10H Subfunction 13H, which allows selection of the paging mode or current color page.