strange .DS stuff with 0x20 and 0x30 addresses.

Source/Apps/FDU/FDU.asm

@@ -3346,7 +3346,8 @@ FXRR5:	INC	C			; [04] POINT TO DATA PORT
 ;
 	; AVOID RETURN FROM HALT IN PROBLEMATIC ADDRESS RANGE XX30-XX3F!!!
 	.IF ((($ & 0F0H) == 20H) | (($ & 0F0H) == 30H))
-	  .ORG	(($ & 0FF00H) + 40H)
+		.DS	(($ & 0FF00H) + 40H) - $
+		; .ORG	(($ & 0FF00H) + 40H)
 	.ENDIF
 ;
 IFXRR:	
@@ -3374,7 +3375,8 @@ IFXRRX	.EQU	$ - IFXRR
 ;
 	; AVOID RETURN FROM HALT IN PROBLEMATIC ADDRESS RANGE XX30-XX3F!!!
 	.IF ((($ & 0F0H) == 20H) | (($ & 0F0H) == 30H))
-	  .ORG	(($ & 0FF00H) + 40H)
+		.DS	(($ & 0FF00H) + 40H) - $
+	  ; .ORG	(($ & 0FF00H) + 40H)
 	.ENDIF
 ;
 FFXRR:
@@ -3452,7 +3454,8 @@ FXRW5:	INC	C			; [04] POINT TO DATA PORT
 ;	
 	; AVOID RETURN FROM HALT IN PROBLEMATIC ADDRESS RANGE XX30-XX3F!!!
 	.IF ((($ & 0F0H) == 20H) | (($ & 0F0H) == 30H))
-	  .ORG	(($ & 0FF00H) + 40H)
+		.DS	(($ & 0FF00H) + 40H) - $
+	  ; .ORG	(($ & 0FF00H) + 40H)
 	.ENDIF
 ;
 IFXRW:	
@@ -3478,7 +3481,8 @@ IFXRW2:	EI
 ;
 	; AVOID RETURN FROM HALT IN PROBLEMATIC ADDRESS RANGE XX30-XX3F!!!
 	.IF ((($ & 0F0H) == 20H) | (($ & 0F0H) == 30H))
-	  .ORG	(($ & 0FF00H) + 40H)
+		.DS	(($ & 0FF00H) + 40H) - $
+	  ; .ORG	(($ & 0FF00H) + 40H)
 	.ENDIF
 ;
 FFXRW: