Hello,
On Thu, 25 Apr 2024 at 20:40, Eric Auer via Freedos-user <
freedos-user@lists.sourceforge.net> wrote:
> LH DISPLAY CON=(EGA,,1)
> rem or maybe for example DISPLAY CON=(EGA,858,1) or similar?
>
I am afraid that this is NOT correct, as the second entry refers to the
"hardware" default codepage. So far, I have not seen any machine whose BIOS
or graphic card has other than 437.
The correct thing to issue when loading DISPLAY would be, in most cases:
DISPLAY CON=(EGA,437,1)
You can also set the second parameter to null.
So what is the use of the sentence above?
For the case where you do
CHCP 437
or worse:
MODE CON CP SEL=437
DISPLAY would resort to default BIOS ("hardware") codepage, with no need to
load ("PREPARE") 437 from a codepage file. If you hadn't done
CON=(EGA,437,1), but CON=(EGA,,1), AND you hadn't PREPARE 437, then CHCP or
CP SEL 437 would exit as error.
So finally, will the following cause any trouble?
DISPLAY CON=(EGA,858,1)
It can cause trouble. Because for CHCP / CP SEL=858 DISPLAY will assume
that your BIOS is 858, and thus use default BIOS codepage, which is in your
case most probably 437.
Aitor
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