src/math/i386/log1pf.s

   1 .global log1pf
   2 .type log1pf,@function
   3 log1pf:
   4         mov 4(%esp),%eax
   5         fldln2
   6         and $0x7fffffff,%eax
   7         flds 4(%esp)
   8         cmp $0x3e940000,%eax
   9         ja 1f
  10         cmp $0x00800000,%eax
  11         jb 2f
  12         fyl2xp1
  13         ret
  14 1:      fld1
  15         faddp
  16         fyl2x
  17         ret
  18                 # subnormal x, return x with underflow
  19 2:      fxch
  20         fmul %st(1)
  21         fstps 4(%esp)
  22         ret