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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: |