Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Int 10h Function 12h Subfunction 31h
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  Interrupt:   10h     Function:   12h     Subfunction   31h
 
  Title:       Enable/Disable Default Palette Loading
 
  Description:                                              [MCGA] [VGA]
 
     Enables or disables loading of a default palette when a video
     display mode is selected.
 
     Input                                          Output
 
     AH = 12h                                       If function supported
     AL = 00h to enable default palette loading       AL = 12h
        = 01h to disable default palette loading
     BL = 31h
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