softfloat/f64_add.c

   1
   2 #include <stdbool.h>
   3 #include <stdint.h>
   4 #include "platform.h"
   5 #include "internals.h"
   6 #include "softfloat.h"
   7
   8 float64_t f64_add( float64_t a, float64_t b )
   9 {
  10     union ui64_f64 uA;
  11     uint_fast64_t uiA;
  12     bool signA;
  13     union ui64_f64 uB;
  14     uint_fast64_t uiB;
  15     bool signB;
  16     float64_t ( *magsRoutine )( uint_fast64_t, uint_fast64_t, bool );
  17
  18     uA.f = a;
  19     uiA = uA.ui;
  20     signA = signF64UI( uiA );
  21     uB.f = b;
  22     uiB = uB.ui;
  23     signB = signF64UI( uiB );
  24     magsRoutine =
  25         ( signA == signB ) ? softfloat_addMagsF64 : softfloat_subMagsF64;
  26     return magsRoutine( uiA, uiB, signA );
  27
  28 }
  29