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GCC provides intrinsics to access certain instructions of the TI C6X processors. These intrinsics, listed below, are available after inclusion of the c6x_intrinsics.h header file. They map directly to C6X instructions.
int _sadd (int, int); int _ssub (int, int); int _sadd2 (int, int); int _ssub2 (int, int); long long _mpy2 (int, int); long long _smpy2 (int, int); int _add4 (int, int); int _sub4 (int, int); int _saddu4 (int, int); int _smpy (int, int); int _smpyh (int, int); int _smpyhl (int, int); int _smpylh (int, int); int _sshl (int, int); int _subc (int, int); int _avg2 (int, int); int _avgu4 (int, int); int _clrr (int, int); int _extr (int, int); int _extru (int, int); int _abs (int); int _abs2 (int);