kolibrios/contrib/sdk/sources/newlib/math/f_log.S
Sergey Semyonov (Serge) 754f9336f0 upload sdk
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-12-15 08:09:20 +00:00

41 lines
724 B
ArmAsm

/*
* ====================================================
* Copyright (C) 1998, 2002 by Red Hat Inc. All rights reserved.
*
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
#if !defined(_SOFT_FLOAT)
/*
Fast version of log using Intel float instructions.
double _f_log (double x);
Function calculates the log base e of x.
There is no error checking or setting of errno.
*/
#include "i386mach.h"
.global SYM (_f_log)
SOTYPE_FUNCTION(_f_log)
SYM (_f_log):
pushl ebp
movl esp,ebp
fld1
fldl2e
fdivrp
fldl 8(ebp)
fyl2x
leave
ret
#endif