From d1f42a87715a4320d50629a4be58f4f826943d62 Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Tue, 19 Jan 2021 22:56:52 -0500
Subject: [PATCH] second HD needs to allow hdv; add missing entry terminators

---
 bios.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/bios.cpp b/bios.cpp
index cfd5821..eb73c0a 100644
--- a/bios.cpp
+++ b/bios.cpp
@@ -524,7 +524,7 @@ uint16_t BIOS::DisksMenuHandler(bool needsRedraw, bool performAction)
 	localRedraw = true;
 	break;
       } else {
-	strcpy(fileFilter, "img");
+	strcpy(fileFilter, "img,hdv");
 	fileSelectionFor = ACT_HD2;
 	return BIOS_SELECTFILE;
       }
@@ -1214,11 +1214,15 @@ uint16_t BIOS::cacheAllEntries(const char *filter)
     struct _cacheEntry *ce = &biosCache[numCacheEntries];
     idx = g_filemanager->readDir(rootPath, filter, ce->fn, idx, BIOS_MAXPATH);
     if (idx == -1) {
+      // add a terminating entry
+      biosCache[numCacheEntries].fn[0] = '\0';
       return numCacheEntries;
     }
     idx++;
     numCacheEntries++;
-    if (numCacheEntries >= BIOSCACHESIZE-1) {
+    if (numCacheEntries >= BIOSCACHESIZE-2) {
+      // need a terminating entry
+      biosCache[BIOSCACHESIZE-1].fn[0] = '\0';
       return numCacheEntries;
     }
   }