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-rw-r--r--src/math/i386/acosl.s15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/math/i386/acosl.s b/src/math/i386/acosl.s
index 6c95509f..599c8230 100644
--- a/src/math/i386/acosl.s
+++ b/src/math/i386/acosl.s
@@ -1 +1,14 @@
-# see acos.s
+.global acosl
+.type acosl,@function
+acosl:
+ fldt 4(%esp)
+ fld %st(0)
+ fld1
+ fsub %st(0),%st(1)
+ fadd %st(2)
+ fmulp
+ fsqrt
+ fabs # fix sign of zero (matters in downward rounding mode)
+ fxch %st(1)
+ fpatan
+ ret