diff --git a/Makefile b/Makefile
index b6b1fab..dcb2124 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ LD=$(RETRO68)/bin/m68k-apple-macos-ld
 OBJCOPY=$(RETRO68)/bin/m68k-apple-macos-objcopy
 OBJDUMP=$(RETRO68)/bin/m68k-apple-macos-objdump
 
-all: bin/rom2M.bin bin/rom8M.bin obj/rdisk1M5.s obj/rdisk7M5.s obj/driver1M5.s obj/driver7M5.s obj/entry_rel.sym obj/driver_abs.sym
+all: bin/rom16M_swap.bin obj/rdisk1M5.s obj/rdisk7M5.s obj/driver1M5.s obj/driver7M5.s obj/entry_rel.sym obj/driver_abs.sym
 
 obj:
 	mkdir obj
@@ -86,6 +86,16 @@ bin/rom8M.bin: baserom.bin RDisk7M5.dsk bin bin/driver7M5.bin obj/driver_abs.sym
 	cat obj/entry_rel.sym | grep "DClose" | cut -c5-8 | xxd -r -p - | dd of=$@ bs=1 seek=335232 count=2 conv=notrunc
 	dd if=RDisk7M5.dsk of=$@ bs=1024 seek=512 count=7680 conv=notrunc # copy disk image
 
+bin/rom8M_swap.bin: bin/rom8M.bin
+	dd if=bin/rom8M.bin of=$@ conv=swab # swap bytes
+
+bin/rom2M_swap.bin: bin/rom2M.bin
+	dd if=bin/rom2M.bin of=$@ conv=swab # swap bytes
+
+bin/rom16M_swap.bin: bin/rom2M_swap.bin bin/rom8M_swap.bin
+	cat bin/rom8M_swap.bin > $@
+	cat bin/rom2M_swap.bin >> $@
+
 
 .PHONY: clean
 clean:
diff --git a/bin/rom16M_swap.bin b/bin/rom16M_swap.bin
new file mode 100644
index 0000000..bcadc3d
Binary files /dev/null and b/bin/rom16M_swap.bin differ
diff --git a/bin/rom2M.bin b/bin/rom2M.bin
index 47389e5..cdc9837 100755
Binary files a/bin/rom2M.bin and b/bin/rom2M.bin differ
diff --git a/bin/rom2M_swap.bin b/bin/rom2M_swap.bin
new file mode 100644
index 0000000..0ab21ac
Binary files /dev/null and b/bin/rom2M_swap.bin differ
diff --git a/bin/rom8M.bin b/bin/rom8M.bin
index 82e1ab4..45d34cf 100755
Binary files a/bin/rom8M.bin and b/bin/rom8M.bin differ
diff --git a/bin/rom8M_swap.bin b/bin/rom8M_swap.bin
new file mode 100644
index 0000000..c972813
Binary files /dev/null and b/bin/rom8M_swap.bin differ