fix broken exponential asm

[musl] / src / math / i386 / exp.s

diff --git a/src/math/i386/exp.s b/src/math/i386/exp.s
index 18f6cd6..f4769d5 100644 (file)
--- a/src/math/i386/exp.s
+++ b/src/math/i386/exp.s
@@ -34,6 +34,15 @@ exp:
 .type exp2,@function
 exp2:
        fldl 4(%esp)
+1:     fxam
+       fnstsw %ax
+       sahf
+       jnp 1f
+       jnc 1f
+       fstps 4(%esp)
+       mov $0xfe,%al
+       and %al,7(%esp)
+       flds 4(%esp)
 1:     fld %st(0)
        frndint
        fxch %st(1)