[fpc-devel] Another thread about the fact that official FPC releases are *unnecessarily* non-representative of the platforms it actually runs on

Florian Klämpfl florian at freepascal.org
Sun Sep 27 22:03:29 CEST 2020

Am 27.09.20 um 21:50 schrieb Florian Klämpfl via fpc-devel:
> Am 27.09.20 um 21:38 schrieb denisgolovan via fpc-devel:
>>> See above. It perfectly shows why it is frightening (not the basic
>>> stuff, but the transcendent functions):
>>> - there are little libraries being really IEEE compliant for float128
>>> - if they are IEEE compliant, their license does not allow to use the
>>> code in the FPC rtl.
>> Ok, the license is the problem.
>> However I still fail to see why full 128bit support is necessary for 
>> 80bit Extended.
> Not for 80 bit extended, but it would be the clean solution with 
> float128 support being optional in some architectures (RiscV, Sparc64, 
> PPC64). So if we change it, we should do it right as 80 Bit has the same 
> problem: missing transcendent functions in software.

Of course, what we could do for the compiler (not the rtl!): to 
translate libquadmath. It is LPGL so perfectly usable with in the compiler.

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