diff options
| -rw-r--r-- | fpu/softfloat.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 0cfa6b4831..20b05d4392 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -1271,11 +1271,18 @@ float64 int64_to_float64( int64 a STATUS_PARAM ) } -float64 uint64_to_float64( uint64 a STATUS_PARAM ) +float64 uint64_to_float64(uint64 a STATUS_PARAM) { - if ( a == 0 ) return float64_zero; - return normalizeRoundAndPackFloat64( 0, 0x43C, a STATUS_VAR ); + int exp = 0x43C; + if (a == 0) { + return float64_zero; + } + if ((int64_t)a < 0) { + shift64RightJamming(a, 1, &a); + exp += 1; + } + return normalizeRoundAndPackFloat64(0, exp, a STATUS_VAR); } /*---------------------------------------------------------------------------- |