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  1.  
  2. format ELF
  3. include 'proc32.inc'
  4. section '.text' executable
  5.  
  6. public log10_ as "log10"
  7.  
  8. log10_:
  9.  
  10. ;       ln(x) = lg(x)/lg(e).
  11.  
  12.         fld     qword[esp+4]
  13.         fld1
  14.         fxch
  15.     fyl2x           ;Compute 1*lg(x).
  16.     fldl2t          ;Load lg(10).
  17.     fdivp  st1, st0     ;Compute lg(x)/lg(10).
  18.     ret
  19.