[PATCH] S/390: Add decimal floating point instructions support

[Martin Schwidefsky]

On Wed, 2007-02-21 at 14:50 +0100, Andreas Krebbel wrote: 
> the latest zSeries mainframe "IBM System z9 Enterprise Class" provides instructions 
> handling decimal floating point numbers:
> http://www.research.ibm.com/journal/rd/511/duale.html
> 
> More background about dfp numbers can be found here:
> http://www2.hursley.ibm.com/decimal/
> 
> The attached patch adds the 63 new instructions to the binutils package as documented here:
> http://publibfi.boulder.ibm.com/epubs/pdf/a2322320.pdf
> 
> The patch produces no testsuite regressions.
> 
> OK?

This looks good. I checked all the new instructions and their formats
and did not find a single mistake. Testsuite runs fine as well. Almost
perfect except for one minor nit: the name of the new machine is z9ec
while the predecessor was called z9-109. Why don't we call it z9-ec?
Would look a little bit nicer ..

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