diff options
Diffstat (limited to 'lib/libc/amd64/gen/ldexp.c')
| -rw-r--r-- | lib/libc/amd64/gen/ldexp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/libc/amd64/gen/ldexp.c b/lib/libc/amd64/gen/ldexp.c index 7046c4e..be533c5 100644 --- a/lib/libc/amd64/gen/ldexp.c +++ b/lib/libc/amd64/gen/ldexp.c @@ -55,8 +55,18 @@ 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); } |
