Long long multiply bugfix

Detail:
  Last revision broke _ll_mullu (the runtime support function for multiplying
  a 64-bit integer by an unsigned 32-bit integer) except for ROM builds that
  target CPUs with the M extension. So in practice, IOMD ROMs and softloadable
  C libraries both exhibited the bug.
Admin:
  Verified that the compiler will now run against this C library (previously
  it reported many non-sensical errors).

Version 5.63. Tagged as 'RISC_OSLib-5_63'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "5.62"
-Module_Version          SETA    562
+Module_MajorVersion     SETS    "5.63"
+Module_Version          SETA    563
 Module_MinorVersion     SETS    ""
-Module_Date             SETS    "18 Oct 2011"
-Module_ApplicationDate  SETS    "18-Oct-11"
+Module_Date             SETS    "28 Oct 2011"
+Module_ApplicationDate  SETS    "28-Oct-11"
 Module_ComponentName    SETS    "RISC_OSLib"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/Lib/RISC_OSLib"
-Module_FullVersion      SETS    "5.62"
-Module_HelpVersion      SETS    "5.62 (18 Oct 2011)"
+Module_FullVersion      SETS    "5.63"
+Module_HelpVersion      SETS    "5.63 (28 Oct 2011)"
                         END

VersionNum

-/* (5.62)
+/* (5.63)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        5.62
+#define Module_MajorVersion_CMHG        5.63
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                18 Oct 2011
+#define Module_Date_CMHG                28 Oct 2011
 
-#define Module_MajorVersion             "5.62"
-#define Module_Version                  562
+#define Module_MajorVersion             "5.63"
+#define Module_Version                  563
 #define Module_MinorVersion             ""
-#define Module_Date                     "18 Oct 2011"
+#define Module_Date                     "28 Oct 2011"
 
-#define Module_ApplicationDate          "18-Oct-11"
+#define Module_ApplicationDate          "28-Oct-11"
 
 #define Module_ComponentName            "RISC_OSLib"
 #define Module_ComponentPath            "castle/RiscOS/Sources/Lib/RISC_OSLib"
 
-#define Module_FullVersion              "5.62"
-#define Module_HelpVersion              "5.62 (18 Oct 2011)"
-#define Module_LibraryVersionInfo       "5:62"
+#define Module_FullVersion              "5.63"
+#define Module_HelpVersion              "5.63 (28 Oct 2011)"
+#define Module_LibraryVersionInfo       "5:63"

s/longlong

@@ -357,6 +357,7 @@ _ll_mullu       ROUT
         MLA     a2, a3, a2, lr
         Return
       |
+        MOV     a4, #0
         B       mul_hardway
       ]