Changed literal zeroes of the style "#>0" into the style "#>$0000".

libsrc/c64/mou/c64-inkwell.s

@@ -1,7 +1,7 @@
 ;
 ; Driver for the Inkwell Systems 170-C and 184-C lightpens.
 ;
-; 2013-07-01, Greg King
+; 2014-09-10, Greg King
 ;
 
         .include        "zeropage.inc"
@@ -102,6 +102,8 @@ OldPenY:        .res    1
 ; Default Inkwell calibration.
 ; The first number is the width of the left border;
 ; the second number is the actual calibration value.
+; See a comment below (at "Calculate the new X co-ordinate")
+; for the reason for the third number.
 
 XOffset:        .byte   (24 + 24) / 2   ; x-offset
 
@@ -260,7 +262,7 @@ MOVE:   sei                             ; No interrupts
 
 BUTTONS:
         lda     Buttons
-        ldx     #>0
+        ldx     #>$0000
 
 ; Make the lightpen buttons look like a 1351 mouse.
 
@@ -360,7 +362,7 @@ IRQ:    jsr     CPREP
 
         sub     #50
         tay                             ; Remember low byte
-        ldx     #>0
+        ldx     #>$0000
 
 ; Limit the Y co-ordinate to the bounding box.
 
@@ -401,7 +403,7 @@ IRQ:    jsr     CPREP
 
         asl     a
         tay                             ; Remember low byte
-        lda     #>0
+        lda     #>$0000
         rol     a
         tax                             ; Remember high byte