newlib-cygwin/newlib/libc/machine/i386/f_ldexp.S

39 lines
718 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 ldexp using Intel float instructions.
double _f_ldexp (double x, int exp);
Function calculates x * 2 ** exp.
There is no error checking or setting of errno.
*/
#include "i386mach.h"
.global SYM (_f_ldexp)
SOTYPE_FUNCTION(_f_ldexp)
SYM (_f_ldexp):
pushl ebp
movl esp,ebp
fild 16(ebp)
fldl 8(ebp)
fscale
fstp st1
leave
ret
#endif