2  *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
90     return -1;  in float64_getexp()
117     return -1;  in float32_getexp()
169     uint8_t sticky;  member
174     p->mant = int128_zero();  in accum_init()
175     p->exp = 0;  in accum_init()
176     p->sign = 0;  in accum_init()
177     p->guard = 0;  in accum_init()
178     p->round = 0;  in accum_init()
179     p->sticky = 0;  in accum_init()
184     a.exp--;  in accum_norm_left()
188     a.round = a.sticky;  in accum_norm_left()
196         a.sticky |=  in accum_norm_right()
205         a.sticky |= a.round | a.guard | (int128_getlo(a.mant) != 0);  in accum_norm_right()
210         amt -= 64;  in accum_norm_right()
214         a.sticky |= a.round;  in accum_norm_right()
218         amt--;  in accum_norm_right()
225  * sticky bit for what was shifted out, I think.
240         /* small - big == - (big - small) */  in accum_sub()
244         /* small - big == - (big - small) */  in accum_sub()
261         b = accum_norm_right(b, a.exp - b.exp);  in accum_sub()
272     borrow = (b.round << 2) | (b.guard << 1) | b.sticky;  in accum_sub()
274     borrow = 0 - borrow;  in accum_sub()
277     ret.sticky = (borrow >> 0) & 1;  in accum_sub()
314         b = accum_norm_right(b, a.exp - b.exp);  in accum_add()
327     ret.sticky = b.sticky;  in accum_add()
395         && ((a.guard | a.round | a.sticky) == 0)) { \
397         switch (fp_status->float_rounding_mode) { \
407     /* So we need to normalize right while the high word is non-zero and \
417      * shifted out lots of bits from B, or if we had no shift / 1 shift sticky \
429         a = accum_norm_right(a, 1 - a.exp); \
435         if (a.guard || a.round || a.sticky) { \
440     if (a.guard || a.round || a.sticky) { \
442         switch (fp_status->float_rounding_mode) { \
457             if (a.round || a.sticky) { \
481         switch (fp_status->float_rounding_mode) { \
575      * We have checked for adding opposite-signed infinities.  in special_fma()
635     prod.exp = float32_getexp(a) + float32_getexp(b) - SF_BIAS - 23;  in internal_fmafx()
638         prod.exp = -2 * WAY_BIG_EXP;  in internal_fmafx()
642         acc.exp = -WAY_BIG_EXP;  in internal_fmafx()
644         acc.sticky = 1;  in internal_fmafx()
672     unsigned int sticky;  in internal_mpyhh()  local
675     sticky = accumulated & 1;  in internal_mpyhh()
689     x.sticky = sticky;  in internal_mpyhh()
692     x.exp = float64_getexp(a) + float64_getexp(b) - DF_BIAS - 20;  in internal_mpyhh()
695         x.sticky = 1;  in internal_mpyhh()
696         x.exp = -4096;  in internal_mpyhh()