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    {
     Does anyone have a routine, or more, that will change video mode, 25
     to 43/50 lines, or back WITHOUT clearing the screen as TextMode does?
     I "hate" that <g>, I know OpCrt is supposed to do that, but I cannot
     use OpCrt in this program without doing MAJOR changes to about 20
     other units that use Tp.Crt. I will, but later, fix that, but for now
     could use a routine of this nature.... }

    PROCEDURE SwitchTo43&50; ASSEMBLER;
    ASM
       MOV AX,$1112
       INT $10
    END;

    PROCEDURE SwitchTo25; ASSEMBLER;
    ASM
       MOV AX,$1114
       INT $10
    END;

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