another DOS

src/idboot.a

@@ -268,5 +268,18 @@ IDBoot
          rts
 
 @notdos32d
+         lda   #$24
+         ldx   #$6E
+         ldy   #8
+         jsr   @CompareMemoryRel
+         !byte $BD,$8A,$C0 ;LDA $C08A,X
+         !byte $B0,$03     ;BCS *+5
+         !byte $BD,$8B,$C0 ;LDA $C08B,X
+         bcs   @notdos32e
+         inc   $246F
+         ldx   #$60
+         rts
+
+@notdos32e
          rts
 }