On 7/14/2008 3:04:17 AM, Avi Kivity wrote:
> Nakajima, Jun wrote:
> > On 7/13/2008 8:31:44 AM, Avi Kivity wrote:
> >
> > > Avi Kivity wrote:
> > >
> > > > Well, xen and bochs do not push an error code for real mode #GP.
> > > > I tried running the attached test program but it doesn't work on
> > > > real hardware (it does work on bochs).
> > > >
> > > Jun, perhaps you can clarify? do #GP exceptions in real-mode push
> > > an error code?
> > >
> >
> > Avi,
> >
> > Exceptions in real-mode do not push an error code in the stack.
>
> Thanks. You might consider updating the documentation, for example
> #DF states that an error code of 0 is always pushed.
>
If you are looking at the description of Chapter 5, at the top it says "This
chapter describes the interrupt and exception-handling mechanism when operating
in protected mode on an Intel 64 or IA-32 processor. ... Chapter 15, "8086
Emulation," describes information specific to interrupt and exception
mechanisms in real-address and virtual-8086 mode.".
.
Jun Nakajima | Intel Open Source Technology Center
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