[SeaBIOS] [RFC PATCH 0/2] seabios: add serial console support

[Gerd Hoffmann]

  Hi,

> known issues / todo list:
>  * isolinux/pxelinux seems to have trouble with this.

Found this one.  video_* fields in BDA need accurate info for syslinux
to work.

Also added cp437 -> utf8 mapping for proper box character drawings.

Stuff is here: https://www.kraxel.org/cgit/seabios/log/?h=serial

/me goes disappear into the weekend now.

cheers,
  Gerd