movnti

[steven james]

Greetings,

Recent ramtest and spotcheck.inc use the movnti instruction to bypass the
cache when writing.

gas 2.9.5 handles everything but that instruction.

options:
1. don't use movnti
2. make it configurable
3. shut up and update binutils :-)

Comments?

G'day,
sjames

[Dave Jones]

On Fri, Oct 25, 2002 at 08:51:09AM -0400, steven james wrote:
> gas 2.9.5 handles everything but that instruction.
>
> options:
> don't use movnti
> make it configurable
> shut up and update binutils :-)

4. use the hex values of the opcode in the source.
(Ugly, but compatable).

Dave

[steven james]

On Fri, 25 Oct 2002, Dave Jones wrote:
> On Fri, Oct 25, 2002 at 08:51:09AM -0400, steven james wrote:
> > gas 2.9.5 handles everything but that instruction.
> >
> > options:
> > don't use movnti
> > make it configurable
> > shut up and update binutils :-)
> use the hex values of the opcode in the source.
>
> (Ugly, but compatable).
>     Dave

I suppose not TOO ugly if hidden behind a #define

G'day,
sjames

steven james  writes:
> Greetings,
>
> Recent ramtest and spotcheck.inc use the movnti instruction to bypass the
> cache when writing.
>
> gas 2.9.5 handles everything but that instruction.

One version of binutils had a bug where it would put
junk at the end of assembly language files.  I think it was
2.9.5  I upgraded to avoid that problem, and to be able to easily use the
new instricutions.
> options:
> don't use movnti
> make it configurable
> shut up and update binutils :-)

Currently this code is set to only be used on a P4.
We are writing code in assembly.  Not having tools that
work on the machine is a royal pain, so I figure updating binutils
is worth it.

Eric