Lines Matching defs:lsb
1315 long exp, top_exp, lsb, key_digit;
1477 /* lsb = exponent of least significant bit of the *rounded* value.
1479 lsb = Py_MAX(top_exp, (long)DBL_MIN_EXP) - DBL_MANT_DIG;
1482 if (exp >= lsb) {
1491 half_eps = 1 << (int)((lsb - exp - 1) % 4);
1492 key_digit = (lsb - exp - 1) / 4;
1498 /* round-half-even: round up if bit lsb-1 is 1 and at least one of
1499 bits lsb, lsb-2, lsb-3, lsb-4, ... is 1. */