Sourcery G++ for ARM SymbianOS includes support for half-precision
(16-bit) floating point, including the new __fp16
data
type in C and C++, support for generating conversion instructions when
compiling for processors that support them, and library functions for
use in other cases.
To use half-precision floating point, you must explicitly enable it
via the -mfp16-format
command-line option to the
compiler. For more information about __fp16
representations
and usage from C and C++, refer to the GCC manual.