Avoid unnecessary remainder calculations

Detail:
  s/ScrBlank - Avoid unnecessary remainder calculations in DivRem macro. Also, make use of the ability to pass in a constant as the divisor.
Admin:
  Tested on Cortex-A15


Version 2.34. Tagged as 'ScrBlank-2_34'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "2.33"
-Module_Version          SETA    233
+Module_MajorVersion     SETS    "2.34"
+Module_Version          SETA    234
 Module_MinorVersion     SETS    ""
-Module_Date             SETS    "05 Dec 2012"
-Module_ApplicationDate  SETS    "05-Dec-12"
+Module_Date             SETS    "08 May 2016"
+Module_ApplicationDate  SETS    "08-May-16"
 Module_ComponentName    SETS    "ScrBlank"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/Video/Render/ScrBlank"
-Module_FullVersion      SETS    "2.33"
-Module_HelpVersion      SETS    "2.33 (05 Dec 2012)"
+Module_FullVersion      SETS    "2.34"
+Module_HelpVersion      SETS    "2.34 (08 May 2016)"
                         END

VersionNum

-/* (2.33)
+/* (2.34)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        2.33
+#define Module_MajorVersion_CMHG        2.34
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                05 Dec 2012
+#define Module_Date_CMHG                08 May 2016
 
-#define Module_MajorVersion             "2.33"
-#define Module_Version                  233
+#define Module_MajorVersion             "2.34"
+#define Module_Version                  234
 #define Module_MinorVersion             ""
-#define Module_Date                     "05 Dec 2012"
+#define Module_Date                     "08 May 2016"
 
-#define Module_ApplicationDate          "05-Dec-12"
+#define Module_ApplicationDate          "08-May-16"
 
 #define Module_ComponentName            "ScrBlank"
 #define Module_ComponentPath            "castle/RiscOS/Sources/Video/Render/ScrBlank"
 
-#define Module_FullVersion              "2.33"
-#define Module_HelpVersion              "2.33 (05 Dec 2012)"
-#define Module_LibraryVersionInfo       "2:33"
+#define Module_FullVersion              "2.34"
+#define Module_HelpVersion              "2.34 (08 May 2016)"
+#define Module_LibraryVersionInfo       "2:34"

s/ScrBlank

@@ -284,16 +284,14 @@ Go_Online
 
 ; R1 is time in cs.  Leaves time in ticks in R0.
 
-ConvertCSToTicks        Entry   "R1,R2"
-        MOV     R2, #TickDelta
-        DivRem  R0, R1, R2, LR
+ConvertCSToTicks        Entry   "R1"
+        DivRem  R0, R1, #TickDelta, LR, norem
         EXIT
 
 ; R0 is time in ticks.  Leaves time in seconds in R1.
 
-ConvertTicksToSecs      Entry   "R0,R2"
-        MOV     R2, #TicksPerSec
-        DivRem  R1, R0, R2, LR
+ConvertTicksToSecs      Entry   "R0"
+        DivRem  R1, R0, #TicksPerSec, LR, norem
         EXIT
 
 ; [ Stork