#1266 int 10h bug

not_a_bug
closed
VGA BIOS (13)
5
2017-02-11
2011-07-22
Ulrich Geis
No

Hallo,
beim arbeiten an meinem selbstprogrammierten Betriebssystem habe ich herausgefunden, dass man mit int10h Funktion 08h kein Zeichen von der aktuellen Cursorposition lesen kann (im Graficmodus). Auf meinem realen Computer funktioniert der Code einwandfrei.
Ich verwende folgenden Code:

mov ah,08h
mov bh,0
int 10h

Es wäre nett, wenn die Verwendung dieser Funktion auch mit Bochs möglich gemacht würde.

LG

Hello,
while working on my selfmade Opperating System I found out that it is not possible to read a character from the current cursor position using int 10h function 08h. My real Computer works fine with my code.
I tested this in the grafic mode.

I use the following code:

mov ah,08h
mov bh,0
int 10h

It would be fine if you make it possible to use this function.

Greatings

Discussion

  • Volker Ruppert

    Volker Ruppert - 2011-08-14

    Reading a character from cursor position in graphics mode is not implemented in the LGPL'd VGABIOS and there are no plans to implement it. Writing a character at cursor position is not yet implemented for all graphics modes.

     
  • Volker Ruppert

    Volker Ruppert - 2017-02-11
    • status: open --> closed
    • assigned_to: Christophe Bothamy --> Volker Ruppert
    • Group: to_be_fixed_in_next_release --> not_a_bug
     
  • Volker Ruppert

    Volker Ruppert - 2017-02-11

    Please re-open as a feature request.

     

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