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diff --git a/mdk-stage1/dietlibc/i386/acos.S b/mdk-stage1/dietlibc/i386/acos.S
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+
+.text
+
+.global acosf,acos,acosl # ,__acos
+ .type acosf,@function
+ .type acos,@function
+ .type acosl,@function
+# .type __acos,@function
+acosf:
+ flds 4(%esp)
+ jmp __acos
+acosl:
+ fldt 4(%esp)
+ jmp __acos
+acos:
+ fldl 4(%esp)
+__acos:
+ fld %st
+ fmul %st
+ fld1
+ fsubp
+ fsqrt
+ fxch %st(1)
+ fpatan
+ ret
+
+.ende:
+.size acos,.ende-acos
+.size acosf,.ende-acosf
+.size acosl,.ende-acosl