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25 lines
521 B
25 lines
521 B
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#include <stdint.h>
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#include "platform.h"
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#include "primitives.h"
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#include "internals.h"
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#include "softfloat.h"
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float64_t ui64_to_f64( uint_fast64_t a )
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{
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union ui64_f64 uZ;
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if ( ! a ) {
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uZ.ui = 0;
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return uZ.f;
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}
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if ( a & UINT64_C( 0x8000000000000000 ) ) {
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return
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softfloat_roundPackToF64(
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0, 0x43D, softfloat_shortShift64RightJam( a, 1 ) );
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} else {
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return softfloat_normRoundPackToF64( 0, 0x43C, a );
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}
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}
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