When compiling with MSVC on x86-compatible, use an intrinsic for byte
swapping. In contrast to the GCC path, we do not prefer inline assembly
here as it is not supported for the x64 platform.
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>