Index: trunk/platform/ixus310_elph500hs/sub/101a/stubs_min.S
===================================================================
--- trunk/platform/ixus310_elph500hs/sub/101a/stubs_min.S	(revision 1352)
+++ trunk/platform/ixus310_elph500hs/sub/101a/stubs_min.S	(revision 1430)
@@ -30,2 +30,4 @@
 DEF(active_palette_buffer, 0xA42C)					// sub_FF244990 (1.00a)
 DEF(palette_buffer, 0xC7DEC)						// sub_FF244E28 (1.00a)
+DEF(viewport_buffers, 0xFF3D0418)			// 1.00a sub_FF0435C8 (FF043978)
+DEF(active_viewport_buffer, 0x2104)			// 1.00a sub_FF0435C8 (FF0435CC & FF043A28)