[SeaBIOS] Print to screen in Romlayout.S

[WANG FEI]

Yang Zhang,

Is it possible the error message from MBR?

-Fei


On Mon, Aug 18, 2014 at 8:50 PM, Yang Zhang <udapostate at gmail.com> wrote:

> Hi,
>  I meet a boot failure when I use seabios to load my own boot loader  on
> virtual machine.  The error message printed on screen say that ”Error
> loading from operating system”, which neither comes from seabios or my boot
> loader(I have read the source code of seabios, but I didn’t find any code
> can print a such message). Actually I don’t  know where  the error message
> come from. Therefore I have to trace the execution of seabios and my boot
> loader. It seems like the error happens before seabios load my boot
> loader(in the file romlayout.S), but I don’t know the exact position. Can
> anyone tell me how to print something to screen in the romlayout.S? (I
> can’t use gdb to debug because the virtual machine is running on our own
> OS). Thank you very much.
> Yang Zhang
>
>
>
>
>
> _______________________________________________
> SeaBIOS mailing list
> SeaBIOS at seabios.org
> http://www.seabios.org/mailman/listinfo/seabios
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.seabios.org/pipermail/seabios/attachments/20140820/8bb4f658/attachment.html>