diff --git a/include/battle_controllers.h b/include/battle_controllers.h
index 3d8d13d3a9..e7a0d50b12 100644
--- a/include/battle_controllers.h
+++ b/include/battle_controllers.h
@@ -96,6 +96,9 @@ enum {
 #define IS_BATTLE_CONTROLLER_ACTIVE_FOR_PLAYER(battlerId, playerId) \
    (gBattleControllerExecFlags & (gBitTable[battlerId] << ((playerId) * 4)))
 
+// This actually checks if a specific controller is active on any player or if 
+// *any* controlleris pending sync over link communications, but the macro name 
+// can only be so specific before it just gets ridiculous.
 #define IS_BATTLE_CONTROLLER_ACTIVE_OR_PENDING_SYNC_ANYWHERE(battlerId) \
    (gBattleControllerExecFlags & ( \
       (gBitTable[battlerId])       \
diff --git a/src/battle_util.c b/src/battle_util.c
index e9edfe06ff..f2e55cea27 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -827,6 +827,7 @@ void PressurePPLoseOnUsingPerishSong(u8 attacker)
     }
 }
 
+// See comments for MarkBattlerForControllerExec.
 static void UNUSED MarkAllBattlersForControllerExec(void)
 {
     int i;