diff options
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 741480c568..b6a50e5e95 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -4342,10 +4342,10 @@ void normalizeFloatx80Subnormal(uint64_t aSig, int32_t *zExpPtr, | a subnormal number, and the underflow and inexact exceptions are raised if | the abstract input cannot be represented exactly as a subnormal extended | double-precision floating-point number. -| If `roundingPrecision' is 32 or 64, the result is rounded to the same -| number of bits as single or double precision, respectively. Otherwise, the -| result is rounded to the full precision of the extended double-precision -| format. +| If `roundingPrecision' is floatx80_precision_s or floatx80_precision_d, +| the result is rounded to the same number of bits as single or double +| precision, respectively. Otherwise, the result is rounded to the full +| precision of the extended double-precision format. | The input significand must be normalized or smaller. If the input | significand is not normalized, `zExp' must be 0; in that case, the result | returned is a subnormal number, and it must not require rounding. The @@ -4353,27 +4353,29 @@ void normalizeFloatx80Subnormal(uint64_t aSig, int32_t *zExpPtr, | Floating-Point Arithmetic. *----------------------------------------------------------------------------*/ -floatx80 roundAndPackFloatx80(int8_t roundingPrecision, bool zSign, +floatx80 roundAndPackFloatx80(FloatX80RoundPrec roundingPrecision, bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, float_status *status) { - int8_t roundingMode; + FloatRoundMode roundingMode; bool roundNearestEven, increment, isTiny; int64_t roundIncrement, roundMask, roundBits; roundingMode = status->float_rounding_mode; roundNearestEven = ( roundingMode == float_round_nearest_even ); - if ( roundingPrecision == 80 ) goto precision80; - if ( roundingPrecision == 64 ) { + switch (roundingPrecision) { + case floatx80_precision_x: + goto precision80; + case floatx80_precision_d: roundIncrement = UINT64_C(0x0000000000000400); roundMask = UINT64_C(0x00000000000007FF); - } - else if ( roundingPrecision == 32 ) { + break; + case floatx80_precision_s: roundIncrement = UINT64_C(0x0000008000000000); roundMask = UINT64_C(0x000000FFFFFFFFFF); - } - else { - goto precision80; + break; + default: + g_assert_not_reached(); } zSig0 |= ( zSig1 != 0 ); switch (roundingMode) { @@ -4550,7 +4552,7 @@ floatx80 roundAndPackFloatx80(int8_t roundingPrecision, bool zSign, | normalized. *----------------------------------------------------------------------------*/ -floatx80 normalizeRoundAndPackFloatx80(int8_t roundingPrecision, +floatx80 normalizeRoundAndPackFloatx80(FloatX80RoundPrec roundingPrecision, bool zSign, int32_t zExp, uint64_t zSig0, uint64_t zSig1, float_status *status) @@ -6203,7 +6205,7 @@ floatx80 floatx80_modrem(floatx80 a, floatx80 b, bool mod, uint64_t *quotient, } return normalizeRoundAndPackFloatx80( - 80, zSign, bExp + expDiff, aSig0, aSig1, status); + floatx80_precision_x, zSign, bExp + expDiff, aSig0, aSig1, status); } |