--- MiNT/src/quickmov.spp	2018/04/24 17:56:35	1.1.1.2
+++ MiNT/src/quickmov.spp	2018/04/24 17:57:24	1.1.1.3
@@ -1,5 +1,7 @@
 ; Copyright 1992 Eric R. Smith
 
+; Copyright 1993 Atari Corporation
+
 ; All rights reserved.
 
 ;
@@ -102,9 +104,9 @@ Leftover:				; do the remaining bytes
 
 	move.l	12(sp),d1
 
-	and.l	#$01ff,d1		; d1 = nbytes % 512
+	and.w	#$01ff,d1		; d1 = nbytes % 512
 
-	subq.l	#1,d1			; prepare for dbra loop
+	subq.w	#1,d1			; prepare for dbra loop
 
 	bmi.s	Ldone