348c5e06c2
* libc/include/sys/unistd.h: Prototype chroot() for RTEMS.
2001-08-29 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* libc/machine/i386/f_atan2.S, libc/machine/i386/f_atan2f.S,
libc/machine/i386/f_exp.c, libc/machine/i386/f_expf.c,
libc/machine/i386/f_frexp.S, libc/machine/i386/f_frexpf.S,
libc/machine/i386/f_ldexp.S, libc/machine/i386/f_ldexpf.S,
libc/machine/i386/f_log.S, libc/machine/i386/f_log10.S,
libc/machine/i386/f_log10f.S, libc/machine/i386/f_logf.S,
libc/machine/i386/f_pow.c, libc/machine/i386/f_powf.c,
libc/machine/i386/f_tan.S, libc/machine/i386/f_tanf.S:
Add conditional compilation to avoid HW FPU instructions
when compiled for soft-float.
41 lines
726 B
ArmAsm
41 lines
726 B
ArmAsm
/*
|
|
* ====================================================
|
|
* Copyright (C) 1998 by Cygnus Solutions. 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 logf using Intel float instructions.
|
|
|
|
float _f_logf (float x);
|
|
|
|
Function calculates the log base e of x.
|
|
There is no error checking or setting of errno.
|
|
*/
|
|
|
|
#include "i386mach.h"
|
|
|
|
.global SYM (_f_logf)
|
|
SOTYPE_FUNCTION(_f_logf)
|
|
|
|
SYM (_f_logf):
|
|
pushl ebp
|
|
movl esp,ebp
|
|
|
|
fld1
|
|
fldl2e
|
|
fdivrp
|
|
flds 8(ebp)
|
|
fyl2x
|
|
|
|
leave
|
|
ret
|
|
|
|
#endif
|