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diff --git a/sysdeps/libm-i387/s_floorl.S b/sysdeps/libm-i387/s_floorl.S
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+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__floorl)
+ pushl %ebp
+ movl %esp,%ebp
+ subl $8,%esp
+
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
+ orw $0x0400,%dx /* round towards -oo */
+ andw $0xf7ff,%dx
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
+
+ fldt 8(%ebp) /* round */
+ frndint
+
+ fldcw -4(%ebp) /* restore original control word */
+
+ leave
+ ret
+weak_alias (__floorl, floorl)