_SSE_EMASK_SHIFT
mxcsr |= FE_ALL_EXCEPT << _SSE_EMASK_SHIFT;
omask = (control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT;
mxcsr &= ~(mask << _SSE_EMASK_SHIFT);
omask = (control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT;
mxcsr |= mask << _SSE_EMASK_SHIFT;
omask = ~(control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT;
mxcsr &= ~(mask << _SSE_EMASK_SHIFT);
omask = ~(control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT;
mxcsr |= mask << _SSE_EMASK_SHIFT;
mxcsr |= FE_ALL_EXCEPT << _SSE_EMASK_SHIFT;