diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef766e5c655..41aa8e0f3cd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2003-11-14  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/lib1funcs.asm (___udivsi3): Add a comment.
+
 2003-11-14  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* config/h8300/lib1funcs.asm (modsi3): Don't save unused
diff --git a/gcc/config/h8300/lib1funcs.asm b/gcc/config/h8300/lib1funcs.asm
index cf9689f304c..44d399087b6 100644
--- a/gcc/config/h8300/lib1funcs.asm
+++ b/gcc/config/h8300/lib1funcs.asm
@@ -602,6 +602,7 @@ setone:
 
 #else /* __H8300H__ */
 
+	;; This function also computes the remainder and stores it in er3.
 	.global	___udivsi3
 ___udivsi3:
 	mov.w	A1E,A1E		; denominator top word 0?