[RFC] "single step" atomic instruction sequences as a whole on PPC

[Luis Machado]

Daniel,

> Does Ulrich's observation imply that there is no test case for this
> neat feature?  I would recommend one in gdb.arch (and maybe a NEWS
> entry too).

I could work on providing a test case for this feature to be included on
the GDB testsuite, as soon as i get familiar with the syntax.

About the instruction bits problem. Should i just literally assign a
decimal number to the variable (16 in this case) or is it preferred to
do a shift based on the hex value?

Thanks!
Luis