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Re: [PATCH] Fixed ieee1275 console

From: Marco Gerards
Subject: Re: [PATCH] Fixed ieee1275 console
Date: Sat, 10 Nov 2007 18:05:39 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

"Marcin Kurek" <address@hidden> writes:

> Hell[o]
>> Right, this is because it seems that the MSB is lost when writing a
>> character to the screen.  For the borders specific characters are used
>> above 127 (non-ASCII).  I wonder if the Pegasos console supports this
>> ASCII extension if you change some settings or so...
> The problem is in framebuffer mode OF loads glyphs starting from 32 to
> 127 then any characters abowe 127 are displayed as white '?'. The
> solution would be to use "set-font" to load a proper font to use with
> grub. In non framebuffer mode cp437 is used by console then we can use
> it to draw borders same as for PC.

Can you provide something that makes use of that?

>> I prefer if it can be detected if this is Efika or for example an
>> apple implementation of OF and handle these characters depending on
>> that.  IIRC this code does work on the apple, but unfortunately I
>> cannot check this anymore.
> Ahhh, I see you looked at first version of patch. Please take a look
> at recent version of my patches.

Will do :-)

>> > Handle 127 keycode as backspace key in grub_ofconsole_readkey() which fix
>> [1]
>> Can you explain this?
> For some reasons my OF sends \b && 127 (Del) sequence for backspace
> key. It seems to be same sa ncurses console.



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