2  *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
70     return -1;  in float64_getexp()
82     return -1;  in float32_getexp()
108     uint8_t sticky;  member
113     p->mant = int128_zero();  in accum_init()
114     p->exp = 0;  in accum_init()
115     p->sign = 0;  in accum_init()
116     p->guard = 0;  in accum_init()
117     p->round = 0;  in accum_init()
118     p->sticky = 0;  in accum_init()
123     a.exp--;  in accum_norm_left()
127     a.round = a.sticky;  in accum_norm_left()
135         a.sticky |=  in accum_norm_right()
144         a.sticky |= a.round | a.guard | (int128_getlo(a.mant) != 0);  in accum_norm_right()
149         amt -= 64;  in accum_norm_right()
153         a.sticky |= a.round;  in accum_norm_right()
157         amt--;  in accum_norm_right()
164  * sticky bit for what was shifted out, I think.
179         /* small - big == - (big - small) */  in accum_sub()
183         /* small - big == - (big - small) */  in accum_sub()
200         b = accum_norm_right(b, a.exp - b.exp);  in accum_sub()
211     borrow = (b.round << 2) | (b.guard << 1) | b.sticky;  in accum_sub()
213     borrow = 0 - borrow;  in accum_sub()
216     ret.sticky = (borrow >> 0) & 1;  in accum_sub()
253         b = accum_norm_right(b, a.exp - b.exp);  in accum_add()
266     ret.sticky = b.sticky;  in accum_add()
316         && ((a.guard | a.round | a.sticky) == 0)) {  in accum_round_float64()
318         switch (fp_status->float_rounding_mode) {  in accum_round_float64()
329      * So we need to normalize right while the high word is non-zero and  in accum_round_float64()
340      * shifted out lots of bits from B, or if we had no shift / 1 shift sticky  in accum_round_float64()
352         a = accum_norm_right(a, 1 - a.exp);  in accum_round_float64()
358         if (a.guard || a.round || a.sticky) {  in accum_round_float64()
363     if (a.guard || a.round || a.sticky) {  in accum_round_float64()
365         switch (fp_status->float_rounding_mode) {  in accum_round_float64()
380             if (a.round || a.sticky) {  in accum_round_float64()
404         switch (fp_status->float_rounding_mode) {  in accum_round_float64()
442     unsigned int sticky;  in internal_mpyhh()  local
445     sticky = accumulated & 1;  in internal_mpyhh()
459     x.sticky = sticky;  in internal_mpyhh()
462     x.exp = float64_getexp(a) + float64_getexp(b) - DF_BIAS - 20;  in internal_mpyhh()
465         x.sticky = 1;  in internal_mpyhh()
466         x.exp = -4096;  in internal_mpyhh()