1 files changed, 18 insertions, 0 deletions
diff --git a/arch/h8300/lib/ucmpdi2.c b/arch/h8300/lib/ucmpdi2.c
new file mode 100644
index 000000000..9f646885f
--- /dev/null
+++ b/arch/h8300/lib/ucmpdi2.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "libgcc.h"
+
+word_type __ucmpdi2(DWtype a, DWtype b)
+{
+	const DWunion au = {.ll = a};
+	const DWunion bu = {.ll = b};
+
+	if ((UWtype) au.s.high < (UWtype) bu.s.high)
+		return 0;
+	else if ((UWtype) au.s.high > (UWtype) bu.s.high)
+		return 2;
+	if ((UWtype) au.s.low < (UWtype) bu.s.low)
+		return 0;
+	else if ((UWtype) au.s.low > (UWtype) bu.s.low)
+		return 2;
+	return 1;
+}