Bochs was Re: processor emulators

[John Bebbington]

Hello Chris,

I also tried thelatest Bochs yesterday and found that the demo rtems++.exe
did not work.
The rtems++.exe from the test sub-dir uses tasking, messages quesues and C++
contructs to checkout rtems.

Have you tried this program or any other sample program other than
helloWorld.exe on bochs yet?


regards

John Bebbington



-----Original Message-----
From: Joel Sherrill [mailto:joel.sherrill at oarcorp.com]
Sent: Mittwoch, 4. Dezember 2002 21:30
To: Chris Caudle
Cc: rtems-users at oarcorp.com
Subject: Bochs was Re: processor emulators




Chris Caudle wrote:
>
> On a related note, I downloaded a recent snapshot of bochs last night (
> http://bochs.sourceforge.net ).  There has been an increase in the work
being
> done over the last several months, and bochs is nearing a 2.0 release.
> Mandrake is sponsoring some of the work now, which probably helped move
things
> along.
> I checked the hello world sample app, and it boots OK with GrUB on bochs.

Was this with current RTEMS sources?  Did you try the networking out or
anything
else?  Did ticker work?

Are there any special instructions or configuration files one needs?

> I
> also checked a DOS app which tests ATA disks, and the ATA emulation does
not
> seem to be fully ATA compliant yet, but I think it might be good enough to
use
> for beginning some libchip style ATA driver work.  The emulation supports
I/O
> cycle access only, not memory mapped access, which makes it not quite as
> interesting as if it supported a full PCI-ATA controller emulation, but it
is
> a start. The emulations supports some of the DMA modes, but I'm not sure
which
> ones yet, but DMA rather than PIO is definitely  one of the features which
> should be in an ATA driver which goes into the source tree.

Sounds very promising.

> -- Chris Caudle

--
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
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