Avoid unnecessary remainder calculations

Detail:
  s/RamFS50 - Avoid unnecessary remainder calculation in DivRem macro
Admin:
  Tested on Cortex-A15


Version 2.32. Tagged as 'RAMFS-2_32'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "2.31"
-Module_Version          SETA    231
+Module_MajorVersion     SETS    "2.32"
+Module_Version          SETA    232
 Module_MinorVersion     SETS    ""
-Module_Date             SETS    "31 Aug 2015"
-Module_ApplicationDate  SETS    "31-Aug-15"
+Module_Date             SETS    "08 May 2016"
+Module_ApplicationDate  SETS    "08-May-16"
 Module_ComponentName    SETS    "RAMFS"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/FileSys/RAMFS/RAMFS"
-Module_FullVersion      SETS    "2.31"
-Module_HelpVersion      SETS    "2.31 (31 Aug 2015)"
+Module_FullVersion      SETS    "2.32"
+Module_HelpVersion      SETS    "2.32 (08 May 2016)"
                         END

VersionNum

-/* (2.31)
+/* (2.32)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        2.31
+#define Module_MajorVersion_CMHG        2.32
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                31 Aug 2015
+#define Module_Date_CMHG                08 May 2016
 
-#define Module_MajorVersion             "2.31"
-#define Module_Version                  231
+#define Module_MajorVersion             "2.32"
+#define Module_Version                  232
 #define Module_MinorVersion             ""
-#define Module_Date                     "31 Aug 2015"
+#define Module_Date                     "08 May 2016"
 
-#define Module_ApplicationDate          "31-Aug-15"
+#define Module_ApplicationDate          "08-May-16"
 
 #define Module_ComponentName            "RAMFS"
 #define Module_ComponentPath            "castle/RiscOS/Sources/FileSys/RAMFS/RAMFS"
 
-#define Module_FullVersion              "2.31"
-#define Module_HelpVersion              "2.31 (31 Aug 2015)"
-#define Module_LibraryVersionInfo       "2:31"
+#define Module_FullVersion              "2.32"
+#define Module_HelpVersion              "2.32 (08 May 2016)"
+#define Module_LibraryVersionInfo       "2:32"

s/RamFS50

@@ -259,7 +259,7 @@ Max_Zones       *       16      ; max allowed zones
         Push    "R0, R1, R2"
         MOV     r0, r6                          ; allocation bits in a zone
         ADD     r1, r3, #1                      ; idlen+1
-        DivRem  r8, r0, r1, r2
+        DivRem  r8, r0, r1, r2, norem
         Pull    "R0, R1, R2"
 
         ; check that IdLen is enough for total possible ids