[PATCH] S/390: DFP support 1/4: Add z9-ec option

Ulrich Weigand uweigand@de.ibm.com
Tue Mar 27 13:47:00 GMT 2007

Janis Johnson wrote:

> The options -mdfp/-mno-dfp match existing options to enable or disable
> sets of hardware instructions.

I see, we don't really have much of those.

> If we weren't already using "dfp"
> informally in some cases to refer to the C extension for decimal
> floating point data types then there wouldn't be any confusion.  We
> don't, however, seem to use "dfp" in any documentation.

What about -mhard-dfp vs. -mno-hard-dfp ?  That would keep in line
with the instruction set option syntax, but still avoid the potentially
misleading -mno-dfp ...


  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE

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