1 files changed, 24 insertions, 0 deletions
diff --git a/src/math/i386/acos.s b/src/math/i386/acos.s
new file mode 100644
index 00000000..6f9ef7f0
--- /dev/null
+++ b/src/math/i386/acos.s
@@ -0,0 +1,24 @@
+.global acosf
+.type acosf,@function
+acosf:
+	flds 4(%esp)
+	jmp 1f
+
+.global acosl
+.type acosl,@function
+acosl:
+	fldt 4(%esp)
+	jmp 1f
+
+.global acos
+.type acos,@function
+acos:
+	fldl 4(%esp)
+1:	fld %st(0)
+	fmul %st(0)
+	fld1
+	fsubp %st(1)
+	fsqrt
+	fxch %st(1)
+	fpatan
+	ret