qa.hlp (Table of Contents; Topic list)
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Int 10H Function 11H Subfunction 20H
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  Description:  Set Int 1FH Font Pointer      [EGA] [MCGA] [VGA]
 
  Sets the Int 1FH pointer to the user's font table. This table is used for
  character codes 80H-FFH in graphics modes 04H-06H.
 
  Input                                         Output
  ══════════════════════════════════            ═══════
  AH=11H                                        Nothing
  AL=20H
  ES:BP=segment:offset of font table
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