Revision fe76d976 fpu/softfloat.c
| b/fpu/softfloat.c | ||
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=============================================================================*/ |
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/* FIXME: Flush-To-Zero only effects results. Denormal inputs should also |
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be flushed to zero. */ |
|
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#include "softfloat.h" |
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|
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/*---------------------------------------------------------------------------- |
| ... | ... | |
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return packFloat32( zSign, 0xFF, - ( roundIncrement == 0 )); |
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} |
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if ( zExp < 0 ) {
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if ( STATUS(flush_to_zero) ) return packFloat32( zSign, 0, 0 ); |
|
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isTiny = |
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( STATUS(float_detect_tininess) == float_tininess_before_rounding ) |
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|| ( zExp < -1 ) |
| ... | ... | |
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return packFloat64( zSign, 0x7FF, - ( roundIncrement == 0 )); |
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} |
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if ( zExp < 0 ) {
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if ( STATUS(flush_to_zero) ) return packFloat64( zSign, 0, 0 ); |
|
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isTiny = |
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( STATUS(float_detect_tininess) == float_tininess_before_rounding ) |
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|| ( zExp < -1 ) |
| ... | ... | |
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goto overflow; |
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} |
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if ( zExp <= 0 ) {
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if ( STATUS(flush_to_zero) ) return packFloatx80( zSign, 0, 0 ); |
|
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isTiny = |
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( STATUS(float_detect_tininess) == float_tininess_before_rounding ) |
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|| ( zExp < 0 ) |
| ... | ... | |
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return packFloat128( zSign, 0x7FFF, 0, 0 ); |
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} |
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if ( zExp < 0 ) {
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if ( STATUS(flush_to_zero) ) return packFloat128( zSign, 0, 0, 0 ); |
|
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isTiny = |
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( STATUS(float_detect_tininess) == float_tininess_before_rounding ) |
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|| ( zExp < -1 ) |
| ... | ... | |
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if ( aSig | bSig ) return propagateFloat32NaN( a, b STATUS_VAR ); |
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return a; |
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} |
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if ( aExp == 0 ) return packFloat32( zSign, 0, ( aSig + bSig )>>6 ); |
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if ( aExp == 0 ) {
|
|
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if ( STATUS(flush_to_zero) ) return packFloat32( zSign, 0, 0 ); |
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return packFloat32( zSign, 0, ( aSig + bSig )>>6 ); |
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} |
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zSig = 0x40000000 + aSig + bSig; |
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zExp = aExp; |
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goto roundAndPack; |
| ... | ... | |
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if ( aSig | bSig ) return propagateFloat64NaN( a, b STATUS_VAR ); |
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return a; |
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} |
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if ( aExp == 0 ) return packFloat64( zSign, 0, ( aSig + bSig )>>9 ); |
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if ( aExp == 0 ) {
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|
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if ( STATUS(flush_to_zero) ) return packFloat64( zSign, 0, 0 ); |
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return packFloat64( zSign, 0, ( aSig + bSig )>>9 ); |
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} |
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zSig = LIT64( 0x4000000000000000 ) + aSig + bSig; |
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zExp = aExp; |
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goto roundAndPack; |
| ... | ... | |
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return a; |
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} |
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add128( aSig0, aSig1, bSig0, bSig1, &zSig0, &zSig1 ); |
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if ( aExp == 0 ) return packFloat128( zSign, 0, zSig0, zSig1 ); |
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if ( aExp == 0 ) {
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if ( STATUS(flush_to_zero) ) return packFloat128( zSign, 0, 0, 0 ); |
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return packFloat128( zSign, 0, zSig0, zSig1 ); |
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} |
|
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zSig2 = 0; |
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zSig0 |= LIT64( 0x0002000000000000 ); |
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zExp = aExp; |
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