FPSR_DZ
fe->fe_fpsr |= FPSR_DZ;
if (fpsr & FPSR_DZ) {
fpsr |= FPSR_DZ;
fpsr |= FPSR_DZ;
fpsr |= FPSR_DZ;
# define FPCR_DZ FPSR_DZ
if (fpsr & FPSR_DZ)