better comment on Instruction.Flush()

diff --git a/src/edu/berkeley/fleet/api/Instruction.java b/src/edu/berkeley/fleet/api/Instruction.java
index eee2480..26d07d8 100644 (file)
--- a/src/edu/berkeley/fleet/api/Instruction.java
+++ b/src/edu/berkeley/fleet/api/Instruction.java
@@ -226,6 +226,7 @@ public abstract class Instruction {
         public String toString() { return super.toString()+"shift "+immediate; }
     }
 
+    /** a flush instruction */
     public static class Flush extends Instruction {
         public Flush(Dock dock) { this(dock, false, Predicate.Default); }
         public Flush(Dock dock, boolean looping, Predicate predicate) {