[patch] "single step" atomic instruction sequences as a whole.

[PAUL GILLIAM]

On Thu, 2006-06-22 at 12:51 -0700, PAUL GILLIAM wrote:

> You may ask "but what if an architecture needs the old
> software_single_step functionality *and* has sequences of instructions
> that need to be atomic?"

It turns out, there *is* such an architecture and it can have the *same*
sequences instruction that need to be atomic as PPC:  the RS6000!

So here is a patch that adds dealing with atomic sequences for the
RS6000.

The attach patch assumes that the 'change-software-single-step.diff'
patch has been applied.

OK to commit?

-=# Paul #=-
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