The prototypes for Streaming SIMD Extensions (SSE) intrinsics to read from and write to registers are in the xmmintrin.h header file.
Intrinsic Name |
Operation |
Corresponding |
---|---|---|
_mm_getcsr |
Return control register |
STMXCSR |
_mm_setcsr |
Set control register |
LDMXCSR |
unsigned int _mm_getcsr(void)
Returns the contents of the control register.
void _mm_setcsr(unsigned int i)
Sets the control register to the value specified.