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ARMv7 support.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3572 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2007-11-11 00:04:49 +00:00
parent ee4e83ed8d
commit 9ee6e8bb85
35 changed files with 11799 additions and 653 deletions
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75
fpu/softfloat.c
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@ -5377,3 +5377,78 @@ int float ## s ## _compare_quiet( float ## s a, float ## s b STATUS_PARAM ) \
COMPARE(32, 0xff)
COMPARE(64, 0x7ff)
/* Multiply A by 2 raised to the power N. */
float32 float32_scalbn( float32 a, int n STATUS_PARAM )
{
flag aSign;
int16 aExp;
bits32 aSig;
aSig = extractFloat32Frac( a );
aExp = extractFloat32Exp( a );
aSign = extractFloat32Sign( a );
if ( aExp == 0xFF ) {
return a;
}
aExp += n;
return roundAndPackFloat32( aSign, aExp, aSig STATUS_VAR );
}
float64 float64_scalbn( float64 a, int n STATUS_PARAM )
{
flag aSign;
int16 aExp;
bits64 aSig;
aSig = extractFloat64Frac( a );
aExp = extractFloat64Exp( a );
aSign = extractFloat64Sign( a );
if ( aExp == 0x7FF ) {
return a;
}
aExp += n;
return roundAndPackFloat64( aSign, aExp, aSig STATUS_VAR );
}
#ifdef FLOATX80
floatx80 floatx80_scalbn( floatx80 a, int n STATUS_PARAM )
{
flag aSign;
int16 aExp;
bits64 aSig;
aSig = extractFloatx80Frac( a );
aExp = extractFloatx80Exp( a );
aSign = extractFloatx80Sign( a );
if ( aExp == 0x7FF ) {
return a;
}
aExp += n;
return roundAndPackFloatx80( STATUS(floatx80_rounding_precision),
aSign, aExp, aSig, 0 STATUS_VAR );
}
#endif
#ifdef FLOAT128
float128 float128_scalbn( float128 a, int n STATUS_PARAM )
{
flag aSign;
int32 aExp;
bits64 aSig0, aSig1;
aSig1 = extractFloat128Frac1( a );
aSig0 = extractFloat128Frac0( a );
aExp = extractFloat128Exp( a );
aSign = extractFloat128Sign( a );
if ( aExp == 0x7FFF ) {
return a;
}
aExp += n;
return roundAndPackFloat128( aSign, aExp, aSig0, aSig1, 0 STATUS_VAR );
}
#endif