arm/insts/fplib.cc

84 #define FP32_MANT_BITS (FP32_BITS - FP32_EXP_BITS - 1)
88 #define FP32_EXP(x) ((x) >> FP32_MANT_BITS & ((1ULL << FP32_EXP_BITS) - 1))
92 #define FP32_MANT(x) ((x) & ((1ULL << FP32_MANT_BITS) - 1))
308     return sgn << (FP32_BITS - 1) | exp << FP32_MANT_BITS | FP32_MANT(mnt);
380     return fp32_pack(0, FP32_EXP_INF, 1ULL << (FP32_MANT_BITS - 1));
418         *mnt |= 1ULL << FP32_MANT_BITS;
475     return fp32_is_NaN(exp, mnt) && !(mnt >> (FP32_MANT_BITS - 1) & 1);
493     return exp == FP32_EXP_INF && (mnt >> (FP32_MANT_BITS - 1) & 1);
533     if (!(a >> (FP32_MANT_BITS - 1) & 1)) {
535         a |= 1ULL << (FP32_MANT_BITS - 1);
794     uint32_t int_mant; // mantissa for result, less than (2 << FP32_MANT_BITS)
806     mnt = (4ULL << FP32_MANT_BITS | mnt >> (FP32_EXP_BITS - 1) |
828         if (int_mant == 1ULL << FP32_MANT_BITS) {
832         if (int_mant == 2ULL << FP32_MANT_BITS) {
1628     x_mnt = (uint64_t)a_mnt << (FP32_MANT_BITS + 4);
1834     x_mnt = ((uint64_t)a_mnt << (FP32_MANT_BITS - FP32_EXP_BITS + 3)) / b_mnt;
1836               (uint64_t)a_mnt << (FP32_MANT_BITS - FP32_EXP_BITS + 3));
2514                      op >> (FP32_MANT_BITS - FP16_MANT_BITS));
2529                      1ULL << (FP32_MANT_BITS - 1) |
2530                      (uint32_t)op << (FP32_MANT_BITS - FP16_MANT_BITS));
2537                      1ULL << (FP32_MANT_BITS - 1) |
2538                      op >> (FP64_MANT_BITS - FP32_MANT_BITS));
2554                      (uint64_t)op << (FP64_MANT_BITS - FP32_MANT_BITS));
2566     return fp32_pack(sgn, FP32_EXP_BIAS, 1ULL << (FP32_MANT_BITS - 1));
2584     return fp32_pack(sgn, FP32_EXP_BIAS + 1, 1ULL << (FP32_MANT_BITS - 1));
2634         if (!(mnt >> (FP32_MANT_BITS - 1) & 1) || alt_hp) {
2650                         mnt >> (FP32_MANT_BITS - FP16_BITS) |
2651                         !!(mnt & ((1ULL << (FP32_MANT_BITS - FP16_BITS)) - 1)),
2739                            (uint32_t)mnt << (FP32_MANT_BITS - FP16_BITS + 1));
2843         if (!(mnt >> (FP32_MANT_BITS - 1) & 1)) {
3034     return ((((op >> 6) & ((1 << FP32_EXP_BITS) - 1)) << FP32_MANT_BITS) |
3121     return fp32_pack(sgn, mnt >> FP32_MANT_BITS ? exp : 0, mnt);
3146     if (!((uint32_t)~(*op1 << 1) >> FP32_MANT_BITS) &&
3147         (uint32_t)~(*op2 << 1) >> FP32_MANT_BITS)
3149     if (!((uint32_t)~(*op2 << 1) >> FP32_MANT_BITS) &&
3150         (uint32_t)~(*op1 << 1) >> FP32_MANT_BITS)
3577                            mnt << (FP32_MANT_BITS - 8));
3790     } else if (!((uint32_t)(op << 1) >> (FP32_MANT_BITS - 1))) {
3819         fraction <<= FP32_MANT_BITS - 8;
4136     int expint = FP32_EXP_BIAS + FP32_MANT_BITS;
4528         (uint32_t)FP32_EXP_BIAS << FP32_MANT_BITS; // 1.0
4704                          (uint64_t)mnt << (FP64_MANT_BITS - FP32_MANT_BITS),
4793                          (uint64_t)mnt << (FP64_MANT_BITS - FP32_MANT_BITS),