Michael Schnell wrote:
On 03/11/2014 03:10 AM, Vsevolod Alekseyev wrote:
I've tried several assembly sequences that would branch and switch
mode; they all would cause an exception.
Supposedly the interrupt code of the OS does not save and restore the
"running in Thumb mode" flag. So you are out of luck with non-Thumb code.
This is obviously a shortcoming due to the arrogance of the creator of
the OS, thoughtlessly castrating the high-performance feature of the
processor.
This strictly recommends not to use this OS.
I don't know whether this is news to anybody: if not my apologies for
adding noise to the thread.
Elsewhere, I see a number of experienced (ex-)Delphi programmers
complaining that
!! It seems Microsoft has changed the functionality of GetVersionEx
!! with Windows 8.1 to no longer return the accurate operating system
! ...and instead shows the version of the operating system that it
! thinks your program wants to hear, rather like a child answering a
! tricky question ('Have you tidied your room?). Fabulous.
There's more in that vein, including some tentative workarounds, but
this appears to be a potential portability pitfall.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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