softfloat/f32_le.c

   1
   2 #include <stdbool.h>
   3 #include <stdint.h>
   4 #include "platform.h"
   5 #include "internals.h"
   6 #include "softfloat.h"
   7
   8 bool f32_le( float32_t a, float32_t b )
   9 {
  10     union ui32_f32 uA;
  11     uint_fast32_t uiA;
  12     union ui32_f32 uB;
  13     uint_fast32_t uiB;
  14     bool signA, signB;
  15
  16     uA.f = a;
  17     uiA = uA.ui;
  18     uB.f = b;
  19     uiB = uB.ui;
  20     if (
  21            ( ( expF32UI( uiA ) == 0xFF ) && fracF32UI( uiA ) )
  22         || ( ( expF32UI( uiB ) == 0xFF ) && fracF32UI( uiB ) )
  23     ) {
  24         softfloat_raiseFlags( softfloat_flag_invalid );
  25         return false;
  26     }
  27     signA = signF32UI( uiA );
  28     signB = signF32UI( uiB );
  29     return
  30         ( signA != signB ) ? signA || ! (uint32_t) ( ( uiA | uiB )<<1 )
  31             : ( uiA == uiB ) || ( signA ^ ( uiA < uiB ) );
  32
  33 }
  34