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fpu/softfloat.c: Return correctly signed values from uint64_to_float32

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The uint64_to_float32() conversion function was incorrectly always
returning numbers with the sign bit set (ie negative numbers). Correct
this so we return positive numbers instead.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2012-09-28 16:17:03 +01:00 committed by Aurelien Jarno
parent 4be8eeacb9
commit e744c06fca
1 changed files with 2 additions and 2 deletions
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4
fpu/softfloat.c
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@ -1238,7 +1238,7 @@ float32 uint64_to_float32( uint64 a STATUS_PARAM )
if ( a == 0 ) return float32_zero; if ( a == 0 ) return float32_zero;
shiftCount = countLeadingZeros64( a ) - 40; shiftCount = countLeadingZeros64( a ) - 40;
if ( 0 <= shiftCount ) { if ( 0 <= shiftCount ) {
return packFloat32( 1 > 0, 0x95 - shiftCount, a<<shiftCount ); return packFloat32(0, 0x95 - shiftCount, a<<shiftCount);
} }
else { else {
shiftCount += 7; shiftCount += 7;
@ -1248,7 +1248,7 @@ float32 uint64_to_float32( uint64 a STATUS_PARAM )
else { else {
a <<= shiftCount; a <<= shiftCount;
} }
return roundAndPackFloat32( 1 > 0, 0x9C - shiftCount, a STATUS_VAR ); return roundAndPackFloat32(0, 0x9C - shiftCount, a STATUS_VAR);
} }
} }