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How to switch to VGA Graphics mode without BIOS interrupts?

Discussion in 'Operating System' started by schwin, Feb 14, 2009.

  1. schwin

    schwin New Member

    Feb 14, 2009
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    Hi !

    I am working on development of an TOS that runs in Protected Mode. I am required to switch it from text mode to graphics mode. Everywhere I google I get only one solution set AX to 0013h and call INT 10 and easily the VGA Graphics Mode is set.


    I am working in protected mode and hence cannot use INT 10.

    Can someone please guide me? I came across a post where it was said that this can be done by setting the VGA registers, but I could not understand much from the link provided in the post on how to implement it. Can someone whose done switching to Graphics Mode without using interrupts please help me resolve this issue.


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