| Using the GNU Compiler Collection (GCC): FR-V Built-in Functions |
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GCC provides many FR-V-specific built-in functions. In general,
these functions are intended to be compatible with those described
by FR-V Family, Softune C/C++ Compiler Manual (V6), Fujitsu
Semiconductor. The two exceptions are __MDUNPACKH and
__MBTOHE, the GCC forms of which pass 128-bit values by
pointer rather than by value.
Most of the functions are named after specific FR-V instructions. Such functions are said to be “directly mapped” and are summarized here in tabular form.
| • Argument Types: | ||
| • Directly-mapped Integer Functions: | ||
| • Directly-mapped Media Functions: | ||
| • Raw read/write Functions: | ||
| • Other Built-in Functions: |