diff options
Diffstat (limited to 'newlib/libc/machine/i386/f_ldexpf.S')
| -rw-r--r-- | newlib/libc/machine/i386/f_ldexpf.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/newlib/libc/machine/i386/f_ldexpf.S b/newlib/libc/machine/i386/f_ldexpf.S new file mode 100644 index 00000000000..e2bf387b04c --- /dev/null +++ b/newlib/libc/machine/i386/f_ldexpf.S @@ -0,0 +1,33 @@ +/* + * ==================================================== + * 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. + * ==================================================== + */ + +/* +Fast version of ldexpf using Intel float instructions. + + float _f_ldexpf (float x, int exp); + +Function calculates x * 2 ** exp. +There is no error checking or setting of errno. +*/ + + #include "i386mach.h" + + .global SYM (_f_ldexpf) + +SYM (_f_ldexpf): + pushl ebp + movl esp,ebp + fild 12(ebp) + flds 8(ebp) + fscale + fstp st1 + + leave + ret |