[fpc-devel] Extended type

Alexander Klenin klenin at gmail.com
Tue Apr 19 11:43:11 CEST 2011


2011/4/19 Nikolai Zhubr <n-a-zhubr at yandex.ru>:
> Now, with the
> introduction of 64-bit processors IIRC AMD took care of this problem by
> providing some means to execute floating-point operations without the need
> for traditional FPU register space, thus allowing to avoid the need to
> save/restore FPU state. IIRC these are some _new_ opcodes, unavailable on
> earlier CPUs.

Very interesting -- can you provide further detail on this?
I could not find anything relevant neither in vol.1 ch.6 nor vol.5 ch.2 of
AMD's APM -- is there something I overlooked?


-- 
Alexander S. Klenin



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