diff options
Diffstat (limited to 'fpu/softfloat.c')
| -rw-r--r-- | fpu/softfloat.c | 1305 |
1 files changed, 168 insertions, 1137 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index a362bf89ca..6c8f2d597a 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -339,12 +339,10 @@ static inline bool f64_is_inf(union_float64 a) return float64_is_infinity(a.s); } -/* Note: @fast_test and @post can be NULL */ static inline float32 float32_gen2(float32 xa, float32 xb, float_status *s, hard_f32_op2_fn hard, soft_f32_op2_fn soft, - f32_check_fn pre, f32_check_fn post, - f32_check_fn fast_test, soft_f32_op2_fn fast_op) + f32_check_fn pre, f32_check_fn post) { union_float32 ua, ub, ur; @@ -359,17 +357,12 @@ float32_gen2(float32 xa, float32 xb, float_status *s, if (unlikely(!pre(ua, ub))) { goto soft; } - if (fast_test && fast_test(ua, ub)) { - return fast_op(ua.s, ub.s, s); - } ur.h = hard(ua.h, ub.h); if (unlikely(f32_is_inf(ur))) { s->float_exception_flags |= float_flag_overflow; - } else if (unlikely(fabsf(ur.h) <= FLT_MIN)) { - if (post == NULL || post(ua, ub)) { - goto soft; - } + } else if (unlikely(fabsf(ur.h) <= FLT_MIN) && post(ua, ub)) { + goto soft; } return ur.s; @@ -380,8 +373,7 @@ float32_gen2(float32 xa, float32 xb, float_status *s, static inline float64 float64_gen2(float64 xa, float64 xb, float_status *s, hard_f64_op2_fn hard, soft_f64_op2_fn soft, - f64_check_fn pre, f64_check_fn post, - f64_check_fn fast_test, soft_f64_op2_fn fast_op) + f64_check_fn pre, f64_check_fn post) { union_float64 ua, ub, ur; @@ -396,17 +388,12 @@ float64_gen2(float64 xa, float64 xb, float_status *s, if (unlikely(!pre(ua, ub))) { goto soft; } - if (fast_test && fast_test(ua, ub)) { - return fast_op(ua.s, ub.s, s); - } ur.h = hard(ua.h, ub.h); if (unlikely(f64_is_inf(ur))) { s->float_exception_flags |= float_flag_overflow; - } else if (unlikely(fabs(ur.h) <= DBL_MIN)) { - if (post == NULL || post(ua, ub)) { - goto soft; - } + } else if (unlikely(fabs(ur.h) <= DBL_MIN) && post(ua, ub)) { + goto soft; } return ur.s; @@ -436,7 +423,7 @@ static inline int extractFloat32Exp(float32 a) | Returns the sign bit of the single-precision floating-point value `a'. *----------------------------------------------------------------------------*/ -static inline flag extractFloat32Sign(float32 a) +static inline bool extractFloat32Sign(float32 a) { return float32_val(a) >> 31; } @@ -463,7 +450,7 @@ static inline int extractFloat64Exp(float64 a) | Returns the sign bit of the double-precision floating-point value `a'. *----------------------------------------------------------------------------*/ -static inline flag extractFloat64Sign(float64 a) +static inline bool extractFloat64Sign(float64 a) { return float64_val(a) >> 63; } @@ -757,8 +744,7 @@ static FloatParts round_canonical(FloatParts p, float_status *s, p.cls = float_class_zero; goto do_zero; } else { - bool is_tiny = (s->float_detect_tininess - == float_tininess_before_rounding) + bool is_tiny = s->tininess_before_rounding || (exp < 0) || !((frac + inc) & DECOMPOSED_OVERFLOW_BIT); @@ -773,6 +759,8 @@ static FloatParts round_canonical(FloatParts p, float_status *s, case float_round_to_odd: inc = frac & frac_lsb ? 0 : round_mask; break; + default: + break; } flags |= float_flag_inexact; frac += inc; @@ -1115,7 +1103,7 @@ static double hard_f64_sub(double a, double b) return a - b; } -static bool f32_addsub_post(union_float32 a, union_float32 b) +static bool f32_addsubmul_post(union_float32 a, union_float32 b) { if (QEMU_HARDFLOAT_2F32_USE_FP) { return !(fpclassify(a.h) == FP_ZERO && fpclassify(b.h) == FP_ZERO); @@ -1123,7 +1111,7 @@ static bool f32_addsub_post(union_float32 a, union_float32 b) return !(float32_is_zero(a.s) && float32_is_zero(b.s)); } -static bool f64_addsub_post(union_float64 a, union_float64 b) +static bool f64_addsubmul_post(union_float64 a, union_float64 b) { if (QEMU_HARDFLOAT_2F64_USE_FP) { return !(fpclassify(a.h) == FP_ZERO && fpclassify(b.h) == FP_ZERO); @@ -1136,14 +1124,14 @@ static float32 float32_addsub(float32 a, float32 b, float_status *s, hard_f32_op2_fn hard, soft_f32_op2_fn soft) { return float32_gen2(a, b, s, hard, soft, - f32_is_zon2, f32_addsub_post, NULL, NULL); + f32_is_zon2, f32_addsubmul_post); } static float64 float64_addsub(float64 a, float64 b, float_status *s, hard_f64_op2_fn hard, soft_f64_op2_fn soft) { return float64_gen2(a, b, s, hard, soft, - f64_is_zon2, f64_addsub_post, NULL, NULL); + f64_is_zon2, f64_addsubmul_post); } float32 QEMU_FLATTEN @@ -1258,42 +1246,18 @@ static double hard_f64_mul(double a, double b) return a * b; } -static bool f32_mul_fast_test(union_float32 a, union_float32 b) -{ - return float32_is_zero(a.s) || float32_is_zero(b.s); -} - -static bool f64_mul_fast_test(union_float64 a, union_float64 b) -{ - return float64_is_zero(a.s) || float64_is_zero(b.s); -} - -static float32 f32_mul_fast_op(float32 a, float32 b, float_status *s) -{ - bool signbit = float32_is_neg(a) ^ float32_is_neg(b); - - return float32_set_sign(float32_zero, signbit); -} - -static float64 f64_mul_fast_op(float64 a, float64 b, float_status *s) -{ - bool signbit = float64_is_neg(a) ^ float64_is_neg(b); - - return float64_set_sign(float64_zero, signbit); -} - float32 QEMU_FLATTEN float32_mul(float32 a, float32 b, float_status *s) { return float32_gen2(a, b, s, hard_f32_mul, soft_f32_mul, - f32_is_zon2, NULL, f32_mul_fast_test, f32_mul_fast_op); + f32_is_zon2, f32_addsubmul_post); } float64 QEMU_FLATTEN float64_mul(float64 a, float64 b, float_status *s) { return float64_gen2(a, b, s, hard_f64_mul, soft_f64_mul, - f64_is_zon2, NULL, f64_mul_fast_test, f64_mul_fast_op); + f64_is_zon2, f64_addsubmul_post); } /* @@ -1834,14 +1798,14 @@ float32 QEMU_FLATTEN float32_div(float32 a, float32 b, float_status *s) { return float32_gen2(a, b, s, hard_f32_div, soft_f32_div, - f32_div_pre, f32_div_post, NULL, NULL); + f32_div_pre, f32_div_post); } float64 QEMU_FLATTEN float64_div(float64 a, float64 b, float_status *s) { return float64_gen2(a, b, s, hard_f64_div, soft_f64_div, - f64_div_pre, f64_div_post, NULL, NULL); + f64_div_pre, f64_div_post); } /* @@ -1966,7 +1930,7 @@ float32 float64_to_float32(float64 a, float_status *s) * Arithmetic. */ -static FloatParts round_to_int(FloatParts a, int rmode, +static FloatParts round_to_int(FloatParts a, FloatRoundMode rmode, int scale, float_status *s) { switch (a.cls) { @@ -2099,8 +2063,8 @@ float64 float64_round_to_int(float64 a, float_status *s) * is returned. */ -static int64_t round_to_int_and_pack(FloatParts in, int rmode, int scale, - int64_t min, int64_t max, +static int64_t round_to_int_and_pack(FloatParts in, FloatRoundMode rmode, + int scale, int64_t min, int64_t max, float_status *s) { uint64_t r; @@ -2145,63 +2109,63 @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode, int scale, } } -int16_t float16_to_int16_scalbn(float16 a, int rmode, int scale, +int16_t float16_to_int16_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float16_to_int32_scalbn(float16 a, int rmode, int scale, +int32_t float16_to_int32_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float16_to_int64_scalbn(float16 a, int rmode, int scale, +int64_t float16_to_int64_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT64_MIN, INT64_MAX, s); } -int16_t float32_to_int16_scalbn(float32 a, int rmode, int scale, +int16_t float32_to_int16_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float32_to_int32_scalbn(float32 a, int rmode, int scale, +int32_t float32_to_int32_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float32_to_int64_scalbn(float32 a, int rmode, int scale, +int64_t float32_to_int64_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT64_MIN, INT64_MAX, s); } -int16_t float64_to_int16_scalbn(float64 a, int rmode, int scale, +int16_t float64_to_int16_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float64_to_int32_scalbn(float64 a, int rmode, int scale, +int32_t float64_to_int32_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float64_to_int64_scalbn(float64 a, int rmode, int scale, +int64_t float64_to_int64_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), @@ -2311,8 +2275,9 @@ int64_t float64_to_int64_round_to_zero(float64 a, float_status *s) * flag. */ -static uint64_t round_to_uint_and_pack(FloatParts in, int rmode, int scale, - uint64_t max, float_status *s) +static uint64_t round_to_uint_and_pack(FloatParts in, FloatRoundMode rmode, + int scale, uint64_t max, + float_status *s) { int orig_flags = get_float_exception_flags(s); FloatParts p = round_to_int(in, rmode, scale, s); @@ -2357,63 +2322,63 @@ static uint64_t round_to_uint_and_pack(FloatParts in, int rmode, int scale, } } -uint16_t float16_to_uint16_scalbn(float16 a, int rmode, int scale, +uint16_t float16_to_uint16_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float16_to_uint32_scalbn(float16 a, int rmode, int scale, +uint32_t float16_to_uint32_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float16_to_uint64_scalbn(float16 a, int rmode, int scale, +uint64_t float16_to_uint64_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT64_MAX, s); } -uint16_t float32_to_uint16_scalbn(float32 a, int rmode, int scale, +uint16_t float32_to_uint16_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float32_to_uint32_scalbn(float32 a, int rmode, int scale, +uint32_t float32_to_uint32_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float32_to_uint64_scalbn(float32 a, int rmode, int scale, +uint64_t float32_to_uint64_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT64_MAX, s); } -uint16_t float64_to_uint16_scalbn(float64 a, int rmode, int scale, +uint16_t float64_to_uint16_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float64_to_uint32_scalbn(float64 a, int rmode, int scale, +uint32_t float64_to_uint32_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float64_to_uint64_scalbn(float64 a, int rmode, int scale, +uint64_t float64_to_uint64_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), @@ -2883,8 +2848,8 @@ MINMAX(64, maxnummag, false, true, true) #undef MINMAX /* Floating point compare */ -static int compare_floats(FloatParts a, FloatParts b, bool is_quiet, - float_status *s) +static FloatRelation compare_floats(FloatParts a, FloatParts b, bool is_quiet, + float_status *s) { if (is_nan(a.cls) || is_nan(b.cls)) { if (!is_quiet || @@ -2955,17 +2920,17 @@ COMPARE(soft_f64_compare, QEMU_SOFTFLOAT_ATTR, 64) #undef COMPARE -int float16_compare(float16 a, float16 b, float_status *s) +FloatRelation float16_compare(float16 a, float16 b, float_status *s) { return soft_f16_compare(a, b, false, s); } -int float16_compare_quiet(float16 a, float16 b, float_status *s) +FloatRelation float16_compare_quiet(float16 a, float16 b, float_status *s) { return soft_f16_compare(a, b, true, s); } -static int QEMU_FLATTEN +static FloatRelation QEMU_FLATTEN f32_compare(float32 xa, float32 xb, bool is_quiet, float_status *s) { union_float32 ua, ub; @@ -2994,17 +2959,17 @@ f32_compare(float32 xa, float32 xb, bool is_quiet, float_status *s) return soft_f32_compare(ua.s, ub.s, is_quiet, s); } -int float32_compare(float32 a, float32 b, float_status *s) +FloatRelation float32_compare(float32 a, float32 b, float_status *s) { return f32_compare(a, b, false, s); } -int float32_compare_quiet(float32 a, float32 b, float_status *s) +FloatRelation float32_compare_quiet(float32 a, float32 b, float_status *s) { return f32_compare(a, b, true, s); } -static int QEMU_FLATTEN +static FloatRelation QEMU_FLATTEN f64_compare(float64 xa, float64 xb, bool is_quiet, float_status *s) { union_float64 ua, ub; @@ -3033,12 +2998,12 @@ f64_compare(float64 xa, float64 xb, bool is_quiet, float_status *s) return soft_f64_compare(ua.s, ub.s, is_quiet, s); } -int float64_compare(float64 a, float64 b, float_status *s) +FloatRelation float64_compare(float64 a, float64 b, float_status *s) { return f64_compare(a, b, false, s); } -int float64_compare_quiet(float64 a, float64 b, float_status *s) +FloatRelation float64_compare_quiet(float64 a, float64 b, float_status *s) { return f64_compare(a, b, true, s); } @@ -3365,10 +3330,11 @@ float64 float64_squash_input_denormal(float64 a, float_status *status) | positive or negative integer is returned. *----------------------------------------------------------------------------*/ -static int32_t roundAndPackInt32(flag zSign, uint64_t absZ, float_status *status) +static int32_t roundAndPackInt32(bool zSign, uint64_t absZ, + float_status *status) { int8_t roundingMode; - flag roundNearestEven; + bool roundNearestEven; int8_t roundIncrement, roundBits; int32_t z; @@ -3422,11 +3388,11 @@ static int32_t roundAndPackInt32(flag zSign, uint64_t absZ, float_status *status | returned. *----------------------------------------------------------------------------*/ -static int64_t roundAndPackInt64(flag zSign, uint64_t absZ0, uint64_t absZ1, +static int64_t roundAndPackInt64(bool zSign, uint64_t absZ0, uint64_t absZ1, float_status *status) { int8_t roundingMode; - flag roundNearestEven, increment; + bool roundNearestEven, increment; int64_t z; roundingMode = status->float_rounding_mode; @@ -3480,11 +3446,11 @@ static int64_t roundAndPackInt64(flag zSign, uint64_t absZ0, uint64_t absZ1, | exception is raised and the largest unsigned integer is returned. *----------------------------------------------------------------------------*/ -static int64_t roundAndPackUint64(flag zSign, uint64_t absZ0, +static int64_t roundAndPackUint64(bool zSign, uint64_t absZ0, uint64_t absZ1, float_status *status) { int8_t roundingMode; - flag roundNearestEven, increment; + bool roundNearestEven, increment; roundingMode = status->float_rounding_mode; roundNearestEven = (roundingMode == float_round_nearest_even); @@ -3568,13 +3534,13 @@ static void | Binary Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static float32 roundAndPackFloat32(flag zSign, int zExp, uint32_t zSig, +static float32 roundAndPackFloat32(bool zSign, int zExp, uint32_t zSig, float_status *status) { int8_t roundingMode; - flag roundNearestEven; + bool roundNearestEven; int8_t roundIncrement, roundBits; - flag isTiny; + bool isTiny; roundingMode = status->float_rounding_mode; roundNearestEven = ( roundingMode == float_round_nearest_even ); @@ -3615,11 +3581,9 @@ static float32 roundAndPackFloat32(flag zSign, int zExp, uint32_t zSig, float_raise(float_flag_output_denormal, status); return packFloat32(zSign, 0, 0); } - isTiny = - (status->float_detect_tininess - == float_tininess_before_rounding) - || ( zExp < -1 ) - || ( zSig + roundIncrement < 0x80000000 ); + isTiny = status->tininess_before_rounding + || (zExp < -1) + || (zSig + roundIncrement < 0x80000000); shift32RightJamming( zSig, - zExp, &zSig ); zExp = 0; roundBits = zSig & 0x7F; @@ -3655,7 +3619,7 @@ static float32 roundAndPackFloat32(flag zSign, int zExp, uint32_t zSig, *----------------------------------------------------------------------------*/ static float32 - normalizeRoundAndPackFloat32(flag zSign, int zExp, uint32_t zSig, + normalizeRoundAndPackFloat32(bool zSign, int zExp, uint32_t zSig, float_status *status) { int8_t shiftCount; @@ -3695,7 +3659,7 @@ static void | significand. *----------------------------------------------------------------------------*/ -static inline float64 packFloat64(flag zSign, int zExp, uint64_t zSig) +static inline float64 packFloat64(bool zSign, int zExp, uint64_t zSig) { return make_float64( @@ -3725,13 +3689,13 @@ static inline float64 packFloat64(flag zSign, int zExp, uint64_t zSig) | Binary Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static float64 roundAndPackFloat64(flag zSign, int zExp, uint64_t zSig, +static float64 roundAndPackFloat64(bool zSign, int zExp, uint64_t zSig, float_status *status) { int8_t roundingMode; - flag roundNearestEven; + bool roundNearestEven; int roundIncrement, roundBits; - flag isTiny; + bool isTiny; roundingMode = status->float_rounding_mode; roundNearestEven = ( roundingMode == float_round_nearest_even ); @@ -3771,11 +3735,9 @@ static float64 roundAndPackFloat64(flag zSign, int zExp, uint64_t zSig, float_raise(float_flag_output_denormal, status); return packFloat64(zSign, 0, 0); } - isTiny = - (status->float_detect_tininess - == float_tininess_before_rounding) - || ( zExp < -1 ) - || ( zSig + roundIncrement < UINT64_C(0x8000000000000000) ); + isTiny = status->tininess_before_rounding + || (zExp < -1) + || (zSig + roundIncrement < UINT64_C(0x8000000000000000)); shift64RightJamming( zSig, - zExp, &zSig ); zExp = 0; roundBits = zSig & 0x3FF; @@ -3811,7 +3773,7 @@ static float64 roundAndPackFloat64(flag zSign, int zExp, uint64_t zSig, *----------------------------------------------------------------------------*/ static float64 - normalizeRoundAndPackFloat64(flag zSign, int zExp, uint64_t zSig, + normalizeRoundAndPackFloat64(bool zSign, int zExp, uint64_t zSig, float_status *status) { int8_t shiftCount; @@ -3863,12 +3825,12 @@ void normalizeFloatx80Subnormal(uint64_t aSig, int32_t *zExpPtr, | Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -floatx80 roundAndPackFloatx80(int8_t roundingPrecision, flag zSign, +floatx80 roundAndPackFloatx80(int8_t roundingPrecision, bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, float_status *status) { int8_t roundingMode; - flag roundNearestEven, increment, isTiny; + bool roundNearestEven, increment, isTiny; int64_t roundIncrement, roundMask, roundBits; roundingMode = status->float_rounding_mode; @@ -3914,11 +3876,9 @@ floatx80 roundAndPackFloatx80(int8_t roundingPrecision, flag zSign, float_raise(float_flag_output_denormal, status); return packFloatx80(zSign, 0, 0); } - isTiny = - (status->float_detect_tininess - == float_tininess_before_rounding) - || ( zExp < 0 ) - || ( zSig0 <= zSig0 + roundIncrement ); + isTiny = status->tininess_before_rounding + || (zExp < 0 ) + || (zSig0 <= zSig0 + roundIncrement); shift64RightJamming( zSig0, 1 - zExp, &zSig0 ); zExp = 0; roundBits = zSig0 & roundMask; @@ -3992,12 +3952,10 @@ floatx80 roundAndPackFloatx80(int8_t roundingPrecision, flag zSign, floatx80_infinity_low); } if ( zExp <= 0 ) { - isTiny = - (status->float_detect_tininess - == float_tininess_before_rounding) - || ( zExp < 0 ) - || ! increment - || ( zSig0 < UINT64_C(0xFFFFFFFFFFFFFFFF) ); + isTiny = status->tininess_before_rounding + || (zExp < 0) + || !increment + || (zSig0 < UINT64_C(0xFFFFFFFFFFFFFFFF)); shift64ExtraRightJamming( zSig0, zSig1, 1 - zExp, &zSig0, &zSig1 ); zExp = 0; if (isTiny && zSig1) { @@ -4062,7 +4020,7 @@ floatx80 roundAndPackFloatx80(int8_t roundingPrecision, flag zSign, *----------------------------------------------------------------------------*/ floatx80 normalizeRoundAndPackFloatx80(int8_t roundingPrecision, - flag zSign, int32_t zExp, + bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, float_status *status) { @@ -4121,11 +4079,9 @@ static inline int32_t extractFloat128Exp( float128 a ) | Returns the sign bit of the quadruple-precision floating-point value `a'. *----------------------------------------------------------------------------*/ -static inline flag extractFloat128Sign( float128 a ) +static inline bool extractFloat128Sign(float128 a) { - - return a.high>>63; - + return a.high >> 63; } /*---------------------------------------------------------------------------- @@ -4183,14 +4139,13 @@ static void *----------------------------------------------------------------------------*/ static inline float128 - packFloat128( flag zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1 ) +packFloat128(bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1) { float128 z; z.low = zSig1; - z.high = ( ( (uint64_t) zSign )<<63 ) + ( ( (uint64_t) zExp )<<48 ) + zSig0; + z.high = ((uint64_t)zSign << 63) + ((uint64_t)zExp << 48) + zSig0; return z; - } /*---------------------------------------------------------------------------- @@ -4214,12 +4169,12 @@ static inline float128 | overflow follows the IEC/IEEE Standard for Binary Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static float128 roundAndPackFloat128(flag zSign, int32_t zExp, +static float128 roundAndPackFloat128(bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, uint64_t zSig2, float_status *status) { int8_t roundingMode; - flag roundNearestEven, increment, isTiny; + bool roundNearestEven, increment, isTiny; roundingMode = status->float_rounding_mode; roundNearestEven = ( roundingMode == float_round_nearest_even ); @@ -4276,17 +4231,12 @@ static float128 roundAndPackFloat128(flag zSign, int32_t zExp, float_raise(float_flag_output_denormal, status); return packFloat128(zSign, 0, 0, 0); } - isTiny = - (status->float_detect_tininess - == float_tininess_before_rounding) - || ( zExp < -1 ) - || ! increment - || lt128( - zSig0, - zSig1, - UINT64_C(0x0001FFFFFFFFFFFF), - UINT64_C(0xFFFFFFFFFFFFFFFF) - ); + isTiny = status->tininess_before_rounding + || (zExp < -1) + || !increment + || lt128(zSig0, zSig1, + UINT64_C(0x0001FFFFFFFFFFFF), + UINT64_C(0xFFFFFFFFFFFFFFFF)); shift128ExtraRightJamming( zSig0, zSig1, zSig2, - zExp, &zSig0, &zSig1, &zSig2 ); zExp = 0; @@ -4339,7 +4289,7 @@ static float128 roundAndPackFloat128(flag zSign, int32_t zExp, | point exponent. *----------------------------------------------------------------------------*/ -static float128 normalizeRoundAndPackFloat128(flag zSign, int32_t zExp, +static float128 normalizeRoundAndPackFloat128(bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, float_status *status) { @@ -4375,7 +4325,7 @@ static float128 normalizeRoundAndPackFloat128(flag zSign, int32_t zExp, floatx80 int32_to_floatx80(int32_t a, float_status *status) { - flag zSign; + bool zSign; uint32_t absA; int8_t shiftCount; uint64_t zSig; @@ -4397,7 +4347,7 @@ floatx80 int32_to_floatx80(int32_t a, float_status *status) float128 int32_to_float128(int32_t a, float_status *status) { - flag zSign; + bool zSign; uint32_t absA; int8_t shiftCount; uint64_t zSig0; @@ -4420,7 +4370,7 @@ float128 int32_to_float128(int32_t a, float_status *status) floatx80 int64_to_floatx80(int64_t a, float_status *status) { - flag zSign; + bool zSign; uint64_t absA; int8_t shiftCount; @@ -4440,7 +4390,7 @@ floatx80 int64_to_floatx80(int64_t a, float_status *status) float128 int64_to_float128(int64_t a, float_status *status) { - flag zSign; + bool zSign; uint64_t absA; int8_t shiftCount; int32_t zExp; @@ -4488,7 +4438,7 @@ float128 uint64_to_float128(uint64_t a, float_status *status) floatx80 float32_to_floatx80(float32 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint32_t aSig; @@ -4524,7 +4474,7 @@ floatx80 float32_to_floatx80(float32 a, float_status *status) float128 float32_to_float128(float32 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint32_t aSig; @@ -4555,7 +4505,7 @@ float128 float32_to_float128(float32 a, float_status *status) float32 float32_rem(float32 a, float32 b, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int aExp, bExp, expDiff; uint32_t aSig, bSig; uint32_t q; @@ -4690,7 +4640,7 @@ static const float64 float32_exp2_coefficients[15] = float32 float32_exp2(float32 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint32_t aSig; float64 r, x, xn; @@ -4740,7 +4690,7 @@ float32 float32_exp2(float32 a, float_status *status) *----------------------------------------------------------------------------*/ float32 float32_log2(float32 a, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int aExp; uint32_t aSig, zSig, i; @@ -4784,222 +4734,6 @@ float32 float32_log2(float32 a, float_status *status) } /*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is equal to -| the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. Otherwise, the comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_eq(float32 a, float32 b, float_status *status) -{ - uint32_t av, bv; - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - av = float32_val(a); - bv = float32_val(b); - return ( av == bv ) || ( (uint32_t) ( ( av | bv )<<1 ) == 0 ); -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is less than -| or equal to the corresponding value `b', and 0 otherwise. The invalid -| exception is raised if either operand is a NaN. The comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_le(float32 a, float32 b, float_status *status) -{ - flag aSign, bSign; - uint32_t av, bv; - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - av = float32_val(a); - bv = float32_val(b); - if ( aSign != bSign ) return aSign || ( (uint32_t) ( ( av | bv )<<1 ) == 0 ); - return ( av == bv ) || ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. The comparison is performed according -| to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_lt(float32 a, float32 b, float_status *status) -{ - flag aSign, bSign; - uint32_t av, bv; - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - av = float32_val(a); - bv = float32_val(b); - if ( aSign != bSign ) return aSign && ( (uint32_t) ( ( av | bv )<<1 ) != 0 ); - return ( av != bv ) && ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. The invalid exception is raised if either -| operand is a NaN. The comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_unordered(float32 a, float32 b, float_status *status) -{ - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is equal to -| the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception. The comparison is performed according to the IEC/IEEE Standard -| for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_eq_quiet(float32 a, float32 b, float_status *status) -{ - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if (float32_is_signaling_nan(a, status) - || float32_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - return ( float32_val(a) == float32_val(b) ) || - ( (uint32_t) ( ( float32_val(a) | float32_val(b) )<<1 ) == 0 ); -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is less than or -| equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -| cause an exception. Otherwise, the comparison is performed according to the -| IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_le_quiet(float32 a, float32 b, float_status *status) -{ - flag aSign, bSign; - uint32_t av, bv; - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if (float32_is_signaling_nan(a, status) - || float32_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - av = float32_val(a); - bv = float32_val(b); - if ( aSign != bSign ) return aSign || ( (uint32_t) ( ( av | bv )<<1 ) == 0 ); - return ( av == bv ) || ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception. Otherwise, the comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_lt_quiet(float32 a, float32 b, float_status *status) -{ - flag aSign, bSign; - uint32_t av, bv; - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if (float32_is_signaling_nan(a, status) - || float32_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - av = float32_val(a); - bv = float32_val(b); - if ( aSign != bSign ) return aSign && ( (uint32_t) ( ( av | bv )<<1 ) != 0 ); - return ( av != bv ) && ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the single-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The -| comparison is performed according to the IEC/IEEE Standard for Binary -| Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float32_unordered_quiet(float32 a, float32 b, float_status *status) -{ - a = float32_squash_input_denormal(a, status); - b = float32_squash_input_denormal(b, status); - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if (float32_is_signaling_nan(a, status) - || float32_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- | Returns the result of converting the double-precision floating-point value | `a' to the extended double-precision floating-point format. The conversion | is performed according to the IEC/IEEE Standard for Binary Floating-Point @@ -5008,7 +4742,7 @@ int float32_unordered_quiet(float32 a, float32 b, float_status *status) floatx80 float64_to_floatx80(float64 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint64_t aSig; @@ -5045,7 +4779,7 @@ floatx80 float64_to_floatx80(float64 a, float_status *status) float128 float64_to_float128(float64 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint64_t aSig, zSig0, zSig1; @@ -5078,7 +4812,7 @@ float128 float64_to_float128(float64 a, float_status *status) float64 float64_rem(float64 a, float64 b, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int aExp, bExp, expDiff; uint64_t aSig, bSig; uint64_t q, alternateASig; @@ -5165,7 +4899,7 @@ float64 float64_rem(float64 a, float64 b, float_status *status) *----------------------------------------------------------------------------*/ float64 float64_log2(float64 a, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int aExp; uint64_t aSig, aSig0, aSig1, zSig, i; a = float64_squash_input_denormal(a, status); @@ -5208,226 +4942,6 @@ float64 float64_log2(float64 a, float_status *status) } /*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is equal to the -| corresponding value `b', and 0 otherwise. The invalid exception is raised -| if either operand is a NaN. Otherwise, the comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_eq(float64 a, float64 b, float_status *status) -{ - uint64_t av, bv; - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - av = float64_val(a); - bv = float64_val(b); - return ( av == bv ) || ( (uint64_t) ( ( av | bv )<<1 ) == 0 ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is less than or -| equal to the corresponding value `b', and 0 otherwise. The invalid -| exception is raised if either operand is a NaN. The comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_le(float64 a, float64 b, float_status *status) -{ - flag aSign, bSign; - uint64_t av, bv; - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - av = float64_val(a); - bv = float64_val(b); - if ( aSign != bSign ) return aSign || ( (uint64_t) ( ( av | bv )<<1 ) == 0 ); - return ( av == bv ) || ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. The comparison is performed according -| to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_lt(float64 a, float64 b, float_status *status) -{ - flag aSign, bSign; - uint64_t av, bv; - - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - av = float64_val(a); - bv = float64_val(b); - if ( aSign != bSign ) return aSign && ( (uint64_t) ( ( av | bv )<<1 ) != 0 ); - return ( av != bv ) && ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. The invalid exception is raised if either -| operand is a NaN. The comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_unordered(float64 a, float64 b, float_status *status) -{ - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise(float_flag_invalid, status); - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is equal to the -| corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception.The comparison is performed according to the IEC/IEEE Standard -| for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_eq_quiet(float64 a, float64 b, float_status *status) -{ - uint64_t av, bv; - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if (float64_is_signaling_nan(a, status) - || float64_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - av = float64_val(a); - bv = float64_val(b); - return ( av == bv ) || ( (uint64_t) ( ( av | bv )<<1 ) == 0 ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is less than or -| equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -| cause an exception. Otherwise, the comparison is performed according to the -| IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_le_quiet(float64 a, float64 b, float_status *status) -{ - flag aSign, bSign; - uint64_t av, bv; - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if (float64_is_signaling_nan(a, status) - || float64_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - av = float64_val(a); - bv = float64_val(b); - if ( aSign != bSign ) return aSign || ( (uint64_t) ( ( av | bv )<<1 ) == 0 ); - return ( av == bv ) || ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception. Otherwise, the comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_lt_quiet(float64 a, float64 b, float_status *status) -{ - flag aSign, bSign; - uint64_t av, bv; - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if (float64_is_signaling_nan(a, status) - || float64_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - av = float64_val(a); - bv = float64_val(b); - if ( aSign != bSign ) return aSign && ( (uint64_t) ( ( av | bv )<<1 ) != 0 ); - return ( av != bv ) && ( aSign ^ ( av < bv ) ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the double-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The -| comparison is performed according to the IEC/IEEE Standard for Binary -| Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float64_unordered_quiet(float64 a, float64 b, float_status *status) -{ - a = float64_squash_input_denormal(a, status); - b = float64_squash_input_denormal(b, status); - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if (float64_is_signaling_nan(a, status) - || float64_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- | Returns the result of converting the extended double-precision floating- | point value `a' to the 32-bit two's complement integer format. The | conversion is performed according to the IEC/IEEE Standard for Binary @@ -5439,7 +4953,7 @@ int float64_unordered_quiet(float64 a, float64 b, float_status *status) int32_t floatx80_to_int32(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig; @@ -5470,7 +4984,7 @@ int32_t floatx80_to_int32(floatx80 a, float_status *status) int32_t floatx80_to_int32_round_to_zero(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig, savedASig; int32_t z; @@ -5521,7 +5035,7 @@ int32_t floatx80_to_int32_round_to_zero(floatx80 a, float_status *status) int64_t floatx80_to_int64(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig, aSigExtra; @@ -5562,7 +5076,7 @@ int64_t floatx80_to_int64(floatx80 a, float_status *status) int64_t floatx80_to_int64_round_to_zero(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig; int64_t z; @@ -5609,7 +5123,7 @@ int64_t floatx80_to_int64_round_to_zero(floatx80 a, float_status *status) float32 floatx80_to_float32(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig; @@ -5643,7 +5157,7 @@ float32 floatx80_to_float32(floatx80 a, float_status *status) float64 floatx80_to_float64(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig, zSig; @@ -5677,7 +5191,7 @@ float64 floatx80_to_float64(floatx80 a, float_status *status) float128 floatx80_to_float128(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int aExp; uint64_t aSig, zSig0, zSig1; @@ -5723,7 +5237,7 @@ floatx80 floatx80_round(floatx80 a, float_status *status) floatx80 floatx80_round_to_int(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t lastBitMask, roundBitsMask; floatx80 z; @@ -5768,6 +5282,11 @@ floatx80 floatx80_round_to_int(floatx80 a, float_status *status) return aSign ? packFloatx80( 1, 0, 0 ) : packFloatx80( 0, 0x3FFF, UINT64_C(0x8000000000000000)); + + case float_round_to_zero: + break; + default: + g_assert_not_reached(); } return packFloatx80( aSign, 0, 0 ); } @@ -5820,7 +5339,7 @@ floatx80 floatx80_round_to_int(floatx80 a, float_status *status) | Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static floatx80 addFloatx80Sigs(floatx80 a, floatx80 b, flag zSign, +static floatx80 addFloatx80Sigs(floatx80 a, floatx80 b, bool zSign, float_status *status) { int32_t aExp, bExp, zExp; @@ -5900,7 +5419,7 @@ static floatx80 addFloatx80Sigs(floatx80 a, floatx80 b, flag zSign, | Standard for Binary Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static floatx80 subFloatx80Sigs(floatx80 a, floatx80 b, flag zSign, +static floatx80 subFloatx80Sigs(floatx80 a, floatx80 b, bool zSign, float_status *status) { int32_t aExp, bExp, zExp; @@ -5969,7 +5488,7 @@ static floatx80 subFloatx80Sigs(floatx80 a, floatx80 b, flag zSign, floatx80 floatx80_add(floatx80 a, floatx80 b, float_status *status) { - flag aSign, bSign; + bool aSign, bSign; if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { float_raise(float_flag_invalid, status); @@ -5994,7 +5513,7 @@ floatx80 floatx80_add(floatx80 a, floatx80 b, float_status *status) floatx80 floatx80_sub(floatx80 a, floatx80 b, float_status *status) { - flag aSign, bSign; + bool aSign, bSign; if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { float_raise(float_flag_invalid, status); @@ -6019,7 +5538,7 @@ floatx80 floatx80_sub(floatx80 a, floatx80 b, float_status *status) floatx80 floatx80_mul(floatx80 a, floatx80 b, float_status *status) { - flag aSign, bSign, zSign; + bool aSign, bSign, zSign; int32_t aExp, bExp, zExp; uint64_t aSig, bSig, zSig0, zSig1; @@ -6081,7 +5600,7 @@ floatx80 floatx80_mul(floatx80 a, floatx80 b, float_status *status) floatx80 floatx80_div(floatx80 a, floatx80 b, float_status *status) { - flag aSign, bSign, zSign; + bool aSign, bSign, zSign; int32_t aExp, bExp, zExp; uint64_t aSig, bSig, zSig0, zSig1; uint64_t rem0, rem1, rem2, term0, term1, term2; @@ -6168,7 +5687,7 @@ floatx80 floatx80_div(floatx80 a, floatx80 b, float_status *status) floatx80 floatx80_rem(floatx80 a, floatx80 b, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int32_t aExp, bExp, expDiff; uint64_t aSig0, aSig1, bSig; uint64_t q, term0, term1, alternateASig0, alternateASig1; @@ -6267,7 +5786,7 @@ floatx80 floatx80_rem(floatx80 a, floatx80 b, float_status *status) floatx80 floatx80_sqrt(floatx80 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, zExp; uint64_t aSig0, aSig1, zSig0, zSig1, doubleZSig0; uint64_t rem0, rem1, rem2, rem3, term0, term1, term2, term3; @@ -6331,263 +5850,6 @@ floatx80 floatx80_sqrt(floatx80 a, float_status *status) } /*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is equal -| to the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. Otherwise, the comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_eq(floatx80 a, floatx80 b, float_status *status) -{ - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b) - || (extractFloatx80Exp(a) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(a) << 1)) - || (extractFloatx80Exp(b) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(b) << 1)) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (uint16_t) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is -| less than or equal to the corresponding value `b', and 0 otherwise. The -| invalid exception is raised if either operand is a NaN. The comparison is -| performed according to the IEC/IEEE Standard for Binary Floating-Point -| Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_le(floatx80 a, floatx80 b, float_status *status) -{ - flag aSign, bSign; - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b) - || (extractFloatx80Exp(a) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(a) << 1)) - || (extractFloatx80Exp(b) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(b) << 1)) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (uint16_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is -| less than the corresponding value `b', and 0 otherwise. The invalid -| exception is raised if either operand is a NaN. The comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_lt(floatx80 a, floatx80 b, float_status *status) -{ - flag aSign, bSign; - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b) - || (extractFloatx80Exp(a) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(a) << 1)) - || (extractFloatx80Exp(b) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(b) << 1)) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (uint16_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point values `a' and `b' -| cannot be compared, and 0 otherwise. The invalid exception is raised if -| either operand is a NaN. The comparison is performed according to the -| IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ -int floatx80_unordered(floatx80 a, floatx80 b, float_status *status) -{ - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b) - || (extractFloatx80Exp(a) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(a) << 1)) - || (extractFloatx80Exp(b) == 0x7FFF - && (uint64_t) (extractFloatx80Frac(b) << 1)) - ) { - float_raise(float_flag_invalid, status); - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is -| equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -| cause an exception. The comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_eq_quiet(floatx80 a, floatx80 b, float_status *status) -{ - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { - float_raise(float_flag_invalid, status); - return 0; - } - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if (floatx80_is_signaling_nan(a, status) - || floatx80_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (uint16_t) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is less -| than or equal to the corresponding value `b', and 0 otherwise. Quiet NaNs -| do not cause an exception. Otherwise, the comparison is performed according -| to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_le_quiet(floatx80 a, floatx80 b, float_status *status) -{ - flag aSign, bSign; - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { - float_raise(float_flag_invalid, status); - return 0; - } - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if (floatx80_is_signaling_nan(a, status) - || floatx80_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (uint16_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point value `a' is less -| than the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause -| an exception. Otherwise, the comparison is performed according to the -| IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int floatx80_lt_quiet(floatx80 a, floatx80 b, float_status *status) -{ - flag aSign, bSign; - - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { - float_raise(float_flag_invalid, status); - return 0; - } - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if (floatx80_is_signaling_nan(a, status) - || floatx80_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (uint16_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the extended double-precision floating-point values `a' and `b' -| cannot be compared, and 0 otherwise. Quiet NaNs do not cause an exception. -| The comparison is performed according to the IEC/IEEE Standard for Binary -| Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ -int floatx80_unordered_quiet(floatx80 a, floatx80 b, float_status *status) -{ - if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { - float_raise(float_flag_invalid, status); - return 1; - } - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (uint64_t) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if (floatx80_is_signaling_nan(a, status) - || floatx80_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- | Returns the result of converting the quadruple-precision floating-point | value `a' to the 32-bit two's complement integer format. The conversion | is performed according to the IEC/IEEE Standard for Binary Floating-Point @@ -6599,7 +5861,7 @@ int floatx80_unordered_quiet(floatx80 a, floatx80 b, float_status *status) int32_t float128_to_int32(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig0, aSig1; @@ -6628,7 +5890,7 @@ int32_t float128_to_int32(float128 a, float_status *status) int32_t float128_to_int32_round_to_zero(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig0, aSig1, savedASig; int32_t z; @@ -6678,7 +5940,7 @@ int32_t float128_to_int32_round_to_zero(float128 a, float_status *status) int64_t float128_to_int64(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig0, aSig1; @@ -6721,7 +5983,7 @@ int64_t float128_to_int64(float128 a, float_status *status) int64_t float128_to_int64_round_to_zero(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, shiftCount; uint64_t aSig0, aSig1; int64_t z; @@ -6786,7 +6048,7 @@ int64_t float128_to_int64_round_to_zero(float128 a, float_status *status) uint64_t float128_to_uint64(float128 a, float_status *status) { - flag aSign; + bool aSign; int aExp; int shiftCount; uint64_t aSig0, aSig1; @@ -6897,7 +6159,7 @@ uint32_t float128_to_uint32(float128 a, float_status *status) float32 float128_to_float32(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig0, aSig1; uint32_t zSig; @@ -6932,7 +6194,7 @@ float32 float128_to_float32(float128 a, float_status *status) float64 float128_to_float64(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig0, aSig1; @@ -6965,7 +6227,7 @@ float64 float128_to_float64(float128 a, float_status *status) floatx80 float128_to_floatx80(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig0, aSig1; @@ -7003,7 +6265,7 @@ floatx80 float128_to_floatx80(float128 a, float_status *status) float128 float128_round_to_int(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t lastBitMask, roundBitsMask; float128 z; @@ -7100,6 +6362,9 @@ float128 float128_round_to_int(float128 a, float_status *status) case float_round_to_odd: return packFloat128(aSign, 0x3FFF, 0, 0); + + case float_round_to_zero: + break; } return packFloat128( aSign, 0, 0, 0 ); } @@ -7158,7 +6423,7 @@ float128 float128_round_to_int(float128 a, float_status *status) | Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static float128 addFloat128Sigs(float128 a, float128 b, flag zSign, +static float128 addFloat128Sigs(float128 a, float128 b, bool zSign, float_status *status) { int32_t aExp, bExp, zExp; @@ -7249,7 +6514,7 @@ static float128 addFloat128Sigs(float128 a, float128 b, flag zSign, | Standard for Binary Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -static float128 subFloat128Sigs(float128 a, float128 b, flag zSign, +static float128 subFloat128Sigs(float128 a, float128 b, bool zSign, float_status *status) { int32_t aExp, bExp, zExp; @@ -7337,7 +6602,7 @@ static float128 subFloat128Sigs(float128 a, float128 b, flag zSign, float128 float128_add(float128 a, float128 b, float_status *status) { - flag aSign, bSign; + bool aSign, bSign; aSign = extractFloat128Sign( a ); bSign = extractFloat128Sign( b ); @@ -7358,7 +6623,7 @@ float128 float128_add(float128 a, float128 b, float_status *status) float128 float128_sub(float128 a, float128 b, float_status *status) { - flag aSign, bSign; + bool aSign, bSign; aSign = extractFloat128Sign( a ); bSign = extractFloat128Sign( b ); @@ -7379,7 +6644,7 @@ float128 float128_sub(float128 a, float128 b, float_status *status) float128 float128_mul(float128 a, float128 b, float_status *status) { - flag aSign, bSign, zSign; + bool aSign, bSign, zSign; int32_t aExp, bExp, zExp; uint64_t aSig0, aSig1, bSig0, bSig1, zSig0, zSig1, zSig2, zSig3; @@ -7442,7 +6707,7 @@ float128 float128_mul(float128 a, float128 b, float_status *status) float128 float128_div(float128 a, float128 b, float_status *status) { - flag aSign, bSign, zSign; + bool aSign, bSign, zSign; int32_t aExp, bExp, zExp; uint64_t aSig0, aSig1, bSig0, bSig1, zSig0, zSig1, zSig2; uint64_t rem0, rem1, rem2, rem3, term0, term1, term2, term3; @@ -7529,7 +6794,7 @@ float128 float128_div(float128 a, float128 b, float_status *status) float128 float128_rem(float128 a, float128 b, float_status *status) { - flag aSign, zSign; + bool aSign, zSign; int32_t aExp, bExp, expDiff; uint64_t aSig0, aSig1, bSig0, bSig1, q, term0, term1, term2; uint64_t allZero, alternateASig0, alternateASig1, sigMean1; @@ -7636,7 +6901,7 @@ float128 float128_rem(float128 a, float128 b, float_status *status) float128 float128_sqrt(float128 a, float_status *status) { - flag aSign; + bool aSign; int32_t aExp, zExp; uint64_t aSig0, aSig1, zSig0, zSig1, zSig2, doubleZSig0; uint64_t rem0, rem1, rem2, rem3, term0, term1, term2, term3; @@ -7696,248 +6961,11 @@ float128 float128_sqrt(float128 a, float_status *status) } -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is equal to -| the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. Otherwise, the comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_eq(float128 a, float128 b, float_status *status) -{ - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (uint64_t) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is less than -| or equal to the corresponding value `b', and 0 otherwise. The invalid -| exception is raised if either operand is a NaN. The comparison is performed -| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_le(float128 a, float128 b, float_status *status) -{ - flag aSign, bSign; - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat128Sign( a ); - bSign = extractFloat128Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (uint64_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. The invalid exception is -| raised if either operand is a NaN. The comparison is performed according -| to the IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_lt(float128 a, float128 b, float_status *status) -{ - flag aSign, bSign; - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - float_raise(float_flag_invalid, status); - return 0; - } - aSign = extractFloat128Sign( a ); - bSign = extractFloat128Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (uint64_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. The invalid exception is raised if either -| operand is a NaN. The comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_unordered(float128 a, float128 b, float_status *status) -{ - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - float_raise(float_flag_invalid, status); - return 1; - } - return 0; -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is equal to -| the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception. The comparison is performed according to the IEC/IEEE Standard -| for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_eq_quiet(float128 a, float128 b, float_status *status) -{ - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - if (float128_is_signaling_nan(a, status) - || float128_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (uint64_t) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is less than -| or equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -| cause an exception. Otherwise, the comparison is performed according to the -| IEC/IEEE Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_le_quiet(float128 a, float128 b, float_status *status) -{ - flag aSign, bSign; - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - if (float128_is_signaling_nan(a, status) - || float128_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat128Sign( a ); - bSign = extractFloat128Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (uint64_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point value `a' is less than -| the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -| exception. Otherwise, the comparison is performed according to the IEC/IEEE -| Standard for Binary Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_lt_quiet(float128 a, float128 b, float_status *status) -{ - flag aSign, bSign; - - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - if (float128_is_signaling_nan(a, status) - || float128_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 0; - } - aSign = extractFloat128Sign( a ); - bSign = extractFloat128Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (uint64_t) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -/*---------------------------------------------------------------------------- -| Returns 1 if the quadruple-precision floating-point values `a' and `b' cannot -| be compared, and 0 otherwise. Quiet NaNs do not cause an exception. The -| comparison is performed according to the IEC/IEEE Standard for Binary -| Floating-Point Arithmetic. -*----------------------------------------------------------------------------*/ - -int float128_unordered_quiet(float128 a, float128 b, float_status *status) -{ - if ( ( ( extractFloat128Exp( a ) == 0x7FFF ) - && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) - || ( ( extractFloat128Exp( b ) == 0x7FFF ) - && ( extractFloat128Frac0( b ) | extractFloat128Frac1( b ) ) ) - ) { - if (float128_is_signaling_nan(a, status) - || float128_is_signaling_nan(b, status)) { - float_raise(float_flag_invalid, status); - } - return 1; - } - return 0; -} - -static inline int floatx80_compare_internal(floatx80 a, floatx80 b, - int is_quiet, float_status *status) +static inline FloatRelation +floatx80_compare_internal(floatx80 a, floatx80 b, bool is_quiet, + float_status *status) { - flag aSign, bSign; + bool aSign, bSign; if (floatx80_invalid_encoding(a) || floatx80_invalid_encoding(b)) { float_raise(float_flag_invalid, status); @@ -7981,20 +7009,22 @@ static inline int floatx80_compare_internal(floatx80 a, floatx80 b, } } -int floatx80_compare(floatx80 a, floatx80 b, float_status *status) +FloatRelation floatx80_compare(floatx80 a, floatx80 b, float_status *status) { return floatx80_compare_internal(a, b, 0, status); } -int floatx80_compare_quiet(floatx80 a, floatx80 b, float_status *status) +FloatRelation floatx80_compare_quiet(floatx80 a, floatx80 b, + float_status *status) { return floatx80_compare_internal(a, b, 1, status); } -static inline int float128_compare_internal(float128 a, float128 b, - int is_quiet, float_status *status) +static inline FloatRelation +float128_compare_internal(float128 a, float128 b, bool is_quiet, + float_status *status) { - flag aSign, bSign; + bool aSign, bSign; if (( ( extractFloat128Exp( a ) == 0x7fff ) && ( extractFloat128Frac0( a ) | extractFloat128Frac1( a ) ) ) || @@ -8025,19 +7055,20 @@ static inline int float128_compare_internal(float128 a, float128 b, } } -int float128_compare(float128 a, float128 b, float_status *status) +FloatRelation float128_compare(float128 a, float128 b, float_status *status) { return float128_compare_internal(a, b, 0, status); } -int float128_compare_quiet(float128 a, float128 b, float_status *status) +FloatRelation float128_compare_quiet(float128 a, float128 b, + float_status *status) { return float128_compare_internal(a, b, 1, status); } floatx80 floatx80_scalbn(floatx80 a, int n, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig; @@ -8076,7 +7107,7 @@ floatx80 floatx80_scalbn(floatx80 a, int n, float_status *status) float128 float128_scalbn(float128 a, int n, float_status *status) { - flag aSign; + bool aSign; int32_t aExp; uint64_t aSig0, aSig1; |