diff options
| author | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2010-10-15 16:17:53 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2010-10-15 16:17:53 -0700 |
| commit | ab928baadbfd3316988a3ad5b5d9b84693a8636f (patch) | |
| tree | b464ce729d53aeff072ed2c341b06194e9ea174b /softfloat/f32_eq.c | |
| parent | d3cb781e165427412b299b6034289b8458472790 (diff) | |
| download | spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.zip spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.tar.gz spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.tar.bz2 | |
[sim] made softfloat files C instead of C++
Diffstat (limited to 'softfloat/f32_eq.c')
| -rwxr-xr-x | softfloat/f32_eq.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/softfloat/f32_eq.c b/softfloat/f32_eq.c new file mode 100755 index 0000000..8f2306b --- /dev/null +++ b/softfloat/f32_eq.c @@ -0,0 +1,34 @@ + +#include <stdbool.h> +#include <stdint.h> +#include "platform.h" +#include "internals.h" +#include "specialize.h" +#include "softfloat.h" + +bool f32_eq( float32_t a, float32_t b ) +{ + union ui32_f32 uA; + uint_fast32_t uiA; + union ui32_f32 uB; + uint_fast32_t uiB; + + uA.f = a; + uiA = uA.ui; + uB.f = b; + uiB = uB.ui; + if ( + ( ( expF32UI( uiA ) == 0xFF ) && fracF32UI( uiA ) ) + || ( ( expF32UI( uiB ) == 0xFF ) && fracF32UI( uiB ) ) + ) { + if ( + softfloat_isSigNaNF32UI( uiA ) || softfloat_isSigNaNF32UI( uiB ) + ) { + softfloat_raiseFlags( softfloat_flag_invalid ); + } + return false; + } + return ( uiA == uiB ) || ! (uint32_t) ( ( uiA | uiB )<<1 ); + +} + |