Fixed bugs in LiqudDirt and Roller

Correct operation of dirt at the edges of the screen, and now dirt counter is two bytes (more and more dirt is possible).
Correction of the roller's (and LiquidDirtoperation on the right side of the screen. (old stiupid error)

variables.asm

@@ -152,7 +152,7 @@ digtabyL .DS [8]
 digtabyH .DS [8]
 ; liquiddirt
 TempXfill .ds 2
-FillCounter .ds 1
+FillCounter .ds 2
 ;sandhog
 sandhogflag .DS 1 ; (0 digger, 8 sandhog)
 ;ofdirt

weapons.asm

@@ -523,6 +523,12 @@ DiggerCharacter
     jmp cleanDirt
 .endp
 ; ------------------------
+.proc liquiddirt
+    mva #sfx_liquid_dirt sfx_effect
+	mwa #254 FillCounter
+	jmp xliquiddirt
+.endp
+; ------------------------
 .proc laser
     ldx TankNr
     lda AngleTable,x
@@ -746,13 +752,13 @@ UpNotYet
     beq HowMuchToFallRight2
 .nowarn    dew xdraw
     lda xdraw
-    bne RollinContinues
+    bne RollinContinues		; like cpw xdraw #0
     lda xdraw+1
     jne RollinContinues
     beq ExplodeNow
 HowMuchToFallRight2
     inw xdraw
-    cpw xdraw screenwidth
+    cpw xdraw #screenwidth
     jne RollinContinues
 ExplodeNow
     mwa xdraw xcircle  ; we must store somewhere (BAD)
@@ -890,10 +896,8 @@ EndOfTheDirt
     rts
 .endp
 ; ----------------
-.proc liquiddirt ;
-    mva #sfx_liquid_dirt sfx_effect
+.proc xliquiddirt ;
 	mva xdraw TempXfill
-	mva #254 FillCounter
 RepeatFill
 	mva TempXfill xdraw
 	jsr checkRollDirection
@@ -911,7 +915,6 @@ RollinContinuesLiquid
     ldy #0
     lda (tempXROLLER),y
     sta ydraw
-    beq FillNow
     cmp HeightRol
     beq UpNotYet2
     bcc FillNow
@@ -924,14 +927,12 @@ UpNotYet2
     cmp #1
     beq HowMuchToFallRight3
 .NOWARN    dew xdraw
-    lda xdraw
-    bne RollinContinuesLiquid
-    lda xdraw+1
+	cpw xdraw #$ffff
     jne RollinContinuesLiquid
     beq FillNow
 HowMuchToFallRight3
     inw xdraw
-    cpw xdraw screenwidth
+    cpw xdraw #(screenwidth+1)
     jne RollinContinuesLiquid
 FillNow
      ; finally one pixel more
@@ -953,7 +954,8 @@ FillHole
     sta (tempXROLLER),y	;mountaintable update
 	mva #1 color
 	jsr plot
-    dec FillCounter
+.nowarn dew FillCounter
+	cpw FillCounter #0
 	jne RepeatFill
     rts
 .endp