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-rw-r--r--sysdeps/libm-i387/s_ilogb.S24
1 files changed, 24 insertions, 0 deletions
diff --git a/sysdeps/libm-i387/s_ilogb.S b/sysdeps/libm-i387/s_ilogb.S
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index 0000000000..f11ed585c0
--- /dev/null
+++ b/sysdeps/libm-i387/s_ilogb.S
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+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: s_ilogb.S,v 1.5 1995/10/12 15:53:09 jtc Exp $")
+
+ENTRY(__ilogb)
+	pushl	%ebp
+	movl	%esp,%ebp
+	subl	$4,%esp
+
+	fldl	8(%ebp)
+	fxtract
+	fstpl	%st
+
+	fistpl	-4(%ebp)
+	movl	-4(%ebp),%eax
+
+	leave
+	ret
+weak_alias (__ilogb, ilogb)