Fix for alignment exception on ARMv7

Detail:
  The Density field in the disc record is a byte at a non-word-aligned address
  but it was being loaded here with an LDR instruction. There is actually a
  pre-existing bug here, since the code at lines 904-905 would only have been
  executed on earlier CPUs if SectorSize, SecsPerTrk and Heads were all zero
  too. This would correspond to an implausibly small hard disc, so arguably
  this part of the branch should perhaps be removed altogether?
Admin:
  Untested at ROOL.
  Submission from Willi Theiß [comments above are my own - BA]

Version 3.40. Tagged as 'FileCore-3_40'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "3.39"
-Module_Version          SETA    339
+Module_MajorVersion     SETS    "3.40"
+Module_Version          SETA    340
 Module_MinorVersion     SETS    ""
-Module_Date             SETS    "04 Aug 2011"
-Module_ApplicationDate  SETS    "04-Aug-11"
+Module_Date             SETS    "12 Sep 2011"
+Module_ApplicationDate  SETS    "12-Sep-11"
 Module_ComponentName    SETS    "FileCore"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/FileSys/FileCore"
-Module_FullVersion      SETS    "3.39"
-Module_HelpVersion      SETS    "3.39 (04 Aug 2011)"
+Module_FullVersion      SETS    "3.40"
+Module_HelpVersion      SETS    "3.40 (12 Sep 2011)"
                         END

VersionNum

-/* (3.39)
+/* (3.40)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        3.39
+#define Module_MajorVersion_CMHG        3.40
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                04 Aug 2011
+#define Module_Date_CMHG                12 Sep 2011
 
-#define Module_MajorVersion             "3.39"
-#define Module_Version                  339
+#define Module_MajorVersion             "3.40"
+#define Module_Version                  340
 #define Module_MinorVersion             ""
-#define Module_Date                     "04 Aug 2011"
+#define Module_Date                     "12 Sep 2011"
 
-#define Module_ApplicationDate          "04-Aug-11"
+#define Module_ApplicationDate          "12-Sep-11"
 
 #define Module_ComponentName            "FileCore"
 #define Module_ComponentPath            "castle/RiscOS/Sources/FileSys/FileCore"
 
-#define Module_FullVersion              "3.39"
-#define Module_HelpVersion              "3.39 (04 Aug 2011)"
-#define Module_LibraryVersionInfo       "3:39"
+#define Module_FullVersion              "3.40"
+#define Module_HelpVersion              "3.40 (12 Sep 2011)"
+#define Module_LibraryVersionInfo       "3:40"

s/FormSWIs

@@ -893,7 +893,7 @@ LayoutFreeSpaceMap ROUT
         LDRB    r0, [r5, #Zones]
         TEQ     r0, #1
  ]
-        LDREQ   lr, [r5, #Density]
+	LDREQB	lr, [r5, #Density]
         TEQEQ   lr, #0
         BNE     %FT45