Re: [Qemu-devel] uvesafb doesn't work with seabios

[Gerhard Wiesinger <lists@wiesinger.com>]

On 13.05.2014 17:41, Kevin O'Connor wrote:
>  The x86emu code does not properly emulate "leal" (as near as I can 
> tell it treats it as a "leaw" instead), which leads to all sorts of 
> bizarre behavior when it tries to interpret the code. This type of 
> issue has occurred for a bunch of instructions (on both x86emu and on 
> an emulator Windows uses) and we've worked around it in SeaVGABIOS 
> with a combination of gcc compiler flags and by post processing gcc's 
> assembler to remove some troublesome instructions. Unfortunately, I 
> don't know of any way to convince gcc to not emit the "leal" 
> instruction and the instruction appears too complex to readily patch 
> out of the assembler.

Can't that wrong behaviour of "leal" instruction be fixed in qemu?

Ciao,
Gerhard