Fixed several aspects of the GEOS CONIO implementation:

- cputc was drawing at the wrong position, therefore one line had to be removed as a workaround.
- chline, cvline were drawing one pixel to large lines.
- cclear was drawing an in both directions one pixel to big rect.
- the cursor was drawn at wrong times at wrong places in a wrong size.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5874 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/geos-common/conio/gotoxy.s

@@ -20,12 +20,10 @@ _gotox:
 
 _gotoy:
 	sta cursor_r
-	inc cursor_r
 	jmp fixcursor
 
 _gotoxy:
 	sta cursor_r
-	inc cursor_r
 	jsr popa
 	sta cursor_c
 
@@ -35,12 +33,12 @@ fixcursor:
 	sta cursor_x
 	lda #0
 	sta cursor_x+1
-	lda cursor_r
-	sta cursor_y
 	ldx #cursor_x
 	ldy #3
 	jsr DShiftLeft
-	asl cursor_y
-	asl cursor_y
-	asl cursor_y
+	lda cursor_r
+	asl a
+	asl a
+	asl a
+	sta cursor_y
 	rts