arch/powerpc/math-emu/types.c

   1 #include "soft-fp.h"
   2 #include "double.h"
   3 #include "single.h"
   4
   5 void
   6 fp_unpack_d(long *_s, unsigned long *_f1, unsigned long *_f0,
   7             long *_e, long *_c, void *val)
   8 {
   9         FP_DECL_D(X);
  10
  11         __FP_UNPACK_RAW_2(D, X, val);
  12
  13         _FP_UNPACK_CANONICAL(D, 2, X);
  14
  15         *_s = X_s;
  16         *_f1 = X_f1;
  17         *_f0 = X_f0;
  18         *_e = X_e;
  19         *_c = X_c;
  20 }
  21
  22 int
  23 fp_pack_d(void *val, long X_s, unsigned long X_f1,
  24           unsigned long X_f0, long X_e, long X_c)
  25 {
  26         int exc;
  27
  28         exc = _FP_PACK_CANONICAL(D, 2, X);
  29         if (!exc || !__FPU_TRAP_P(exc))
  30                 __FP_PACK_RAW_2(D, val, X);
  31         return exc;
  32 }
  33
  34 int
  35 fp_pack_ds(void *val, long X_s, unsigned long X_f1,
  36            unsigned long X_f0, long X_e, long X_c)
  37 {
  38         FP_DECL_S(__X);
  39         int exc;
  40
  41         FP_CONV(S, D, 1, 2, __X, X);
  42         exc = _FP_PACK_CANONICAL(S, 1, __X);
  43         if (!exc || !__FPU_TRAP_P(exc)) {
  44                 _FP_UNPACK_CANONICAL(S, 1, __X);
  45                 FP_CONV(D, S, 2, 1, X, __X);
  46                 exc |= _FP_PACK_CANONICAL(D, 2, X);
  47                 if (!exc || !__FPU_TRAP_P(exc))
  48                         __FP_PACK_RAW_2(D, val, X);
  49         }
  50         return exc;
  51 }