Int 10/AH=05h

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VIDEO - PCjr, Tandy 1000 - SET CRT/CPU PAGE REGISTERS

AH = 05h
AL = subfunction
81h set CPU page register
BL = CPU page
82h set CRT page register
BH = CRT page
83h set both CPU and CRT page registers
BL = CPU page
BH = CRT page

Return:
Nothing

Notes: The CPU page determines which 16K block of the first 128K of physical memory will be mapped at B800h by the hardware. The CRT page determines the start address of the memory used by the video controller

See Also: AX=0580h

Category: Video - Int 10h - V

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