Index: parse.c
===================================================================
--- parse.c	(revision 16604)
+++ parse.c	(revision 16605)
@@ -239,6 +239,7 @@
 			return 0;
 		case inst2num('W','U'):
 		case inst2num('P','W'):
+		case inst2num('L','T'):
 			p->state = ST_NUMBERS_OR_END;
 			return 0;
 
@@ -365,6 +366,13 @@
 				return 0;
 			}
 			return error(ctx, "PT needs 1 argument");
+		case inst2num('L','T'):
+			if (is_last) {
+				if ((p->argc <= 3) && (is_last))
+					return 0;
+				return error(ctx, "LT needs at most 3 argument");
+			}
+			return 0;
 		case inst2num('V','S'):
 			if (is_last) {
 				if ((p->argc == 1) || (p->argc == 2)) {