[Vm-dev] Fwd: [Pharo-users] Set Rounding mode for IEEE floating point operations
Steffen Märcker
merkste at web.de
Tue May 29 15:38:47 UTC 2018
Hi Levente,
I'll have a look, thanks for your suggestion! From your description, I
assume, libraries as Freetype run in the same process, right? If so, a
library changing those process-flags, might cause (maybe hidden) issues at
other places as well.
Best, Steffen
Am .05.2018, 00:43 Uhr, schrieb Levente Uzonyi <leves at caesar.elte.hu>:
> Hi Steffen,
> I can only guess that there's some library (IIRC Pharo uses e.g.
> FreeType)
> used by the VM setting the rounding mode for its own purposes.
> I would try to see if the rounding mode stays the same while vmParameter
> 56 (number of process switches since startup) stays the same. And if it
> does, I'd use that to minimize the number of times the FFI call has to
> be done to have the rounding mode you need. Because polling the
> parameter is probably faster than the FFI call.
> Levente
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