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#include <stdbool.h> | ||
#include <stdint.h> | ||
#include "platform.h" | ||
#include "internals.h" | ||
#include "specialize.h" | ||
#include "softfloat.h" | ||
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uint_fast16_t f32_classify( float32_t a ) | ||
{ | ||
union ui32_f32 uA; | ||
uint_fast32_t uiA; | ||
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uA.f = a; | ||
uiA = uA.ui; | ||
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uint_fast16_t infOrNaN = expF32UI( uiA ) == 0xFF; | ||
uint_fast16_t subnormalOrZero = expF32UI( uiA ) == 0; | ||
bool sign = signF32UI( uiA ); | ||
bool fracZero = fracF32UI( uiA ) == 0; | ||
bool isNaN = isNaNF32UI( uiA ); | ||
bool isSNaN = softfloat_isSigNaNF32UI( uiA ); | ||
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return | ||
( sign && infOrNaN && fracZero ) << 0 | | ||
( sign && !infOrNaN && !subnormalOrZero ) << 1 | | ||
( sign && subnormalOrZero && !fracZero ) << 2 | | ||
( sign && subnormalOrZero && fracZero ) << 3 | | ||
( !sign && infOrNaN && fracZero ) << 7 | | ||
( !sign && !infOrNaN && !subnormalOrZero ) << 6 | | ||
( !sign && subnormalOrZero && !fracZero ) << 5 | | ||
( !sign && subnormalOrZero && fracZero ) << 4 | | ||
( isNaN && isSNaN ) << 8 | | ||
( isNaN && !isSNaN ) << 9; | ||
} | ||
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,36 @@ | ||
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#include <stdbool.h> | ||
#include <stdint.h> | ||
#include "platform.h" | ||
#include "internals.h" | ||
#include "specialize.h" | ||
#include "softfloat.h" | ||
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uint_fast16_t f64_classify( float64_t a ) | ||
{ | ||
union ui64_f64 uA; | ||
uint_fast64_t uiA; | ||
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uA.f = a; | ||
uiA = uA.ui; | ||
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uint_fast16_t infOrNaN = expF64UI( uiA ) == 0x7FF; | ||
uint_fast16_t subnormalOrZero = expF64UI( uiA ) == 0; | ||
bool sign = signF64UI( uiA ); | ||
bool fracZero = fracF64UI( uiA ) == 0; | ||
bool isNaN = isNaNF64UI( uiA ); | ||
bool isSNaN = softfloat_isSigNaNF64UI( uiA ); | ||
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return | ||
( sign && infOrNaN && fracZero ) << 0 | | ||
( sign && !infOrNaN && !subnormalOrZero ) << 1 | | ||
( sign && subnormalOrZero && !fracZero ) << 2 | | ||
( sign && subnormalOrZero && fracZero ) << 3 | | ||
( !sign && infOrNaN && fracZero ) << 7 | | ||
( !sign && !infOrNaN && !subnormalOrZero ) << 6 | | ||
( !sign && subnormalOrZero && !fracZero ) << 5 | | ||
( !sign && subnormalOrZero && fracZero ) << 4 | | ||
( isNaN && isSNaN ) << 8 | | ||
( isNaN && !isSNaN ) << 9; | ||
} | ||
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