diff options
Diffstat (limited to 'lib/libc/i386/gen/ldexp.c')
| -rw-r--r-- | lib/libc/i386/gen/ldexp.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/lib/libc/i386/gen/ldexp.c b/lib/libc/i386/gen/ldexp.c index 7046c4e..8b63f52 100644 --- a/lib/libc/i386/gen/ldexp.c +++ b/lib/libc/i386/gen/ldexp.c @@ -32,11 +32,13 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. + * + * $Id$ */ -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)ldexp.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ +#if defined(LIBC_RCS) && !defined(lint) +static const char rcsid[] = "$Id$"; +#endif /* LIBC_RCS and not lint */ /* * ldexp(value, exp): return value * (2 ** exp). @@ -55,8 +57,18 @@ ldexp (double value, int exp) { double temp, texp, temp2; texp = exp; +#ifdef __GNUC__ +#if __GNUC__ >= 2 + asm ("fscale " + : "=u" (temp2), "=t" (temp) + : "0" (texp), "1" (value)); +#else asm ("fscale ; fxch %%st(1) ; fstp%L1 %1 " : "=f" (temp), "=0" (temp2) : "0" (texp), "f" (value)); +#endif +#else +error unknown asm +#endif return (temp); } |
