From d49cc0393cae137d1354d5b3bfbf0ef38c26b250 Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Sun, 11 Nov 2018 17:55:11 -0800
Subject: [PATCH] allow close to be called even if nothing open

---
 src/glue.prorwts2.a | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/glue.prorwts2.a b/src/glue.prorwts2.a
index fd210a4c5..54a19e3e9 100644
--- a/src/glue.prorwts2.a
+++ b/src/glue.prorwts2.a
@@ -437,6 +437,8 @@ ProDOS_enter
     rts
 
 @imp_close
+    lda    @handles+1
+    beq    @close_ret
     dec    @handles+1
     bne    @close_ret
     lda    #>hddencbuf