diff --git a/Source/DSPSpy/tests/arith_test.ds b/Source/DSPSpy/tests/arith_test.ds
index 19dee5eac1..485bb6c740 100644
--- a/Source/DSPSpy/tests/arith_test.ds
+++ b/Source/DSPSpy/tests/arith_test.ds
@@ -9,52 +9,42 @@ tst $acc0
 
 call send_back 	; 1
 
-clr $acc1
-tst $acc1
+
+lri $ac0.h, #0x0011
+lri $ac0.m, #0x0100
+lri $ac0.l, #0x0101
+lsl $acc0, #1
 
 call send_back 	; 2
 
-set16
-tst $acc0
-set40
-
-call send_back 	; 3
-
-lri $ac0.h, #0x1111
-lri $ac0.m, #0x0100
-lri $ac0.l, #0x0001
-lsl $acc0, #1
-
-call send_back 	; 4
-
-lri $ac0.h, #0x1111
+lri $ac0.h, #0x0011
 lri $ac0.m, #0x0100
 lri $ac0.l, #0x0001
 asl $acc0, #1
 
-call send_back 	; 5
+call send_back 	; 3
 
 clr $acc0
-lri $ac0.h, #0x1111
+lri $ac0.h, #0x0011
 tst $acc0
 
-call send_back 	; 6
+call send_back 	; 4
 
 lri $ac0.m, #0x0100
 tst $acc0
 
-call send_back 	; 7
+call send_back 	; 5
 
 lri $ac0.l, #0x0001
 tst $acc0
 
-call send_back 	; 8
+call send_back 	; 6
 clr $acc0
 
 lri $ac0.l, #-1
 tst $acc0
 
-call send_back 	; 9
+call send_back 	; 7
 
 clr $acc0
 
@@ -63,61 +53,78 @@ lri $ac0.l, #-1
 tst $acc0
 set40
 
-call send_back 	; 10
+call send_back 	; 8
 
 clr $acc0
 lri $ac0.h, #0x1000
 tst $acc0
 
-call send_back 	; 11
+call send_back 	; 9
 
 clr $acc0
 lri $ac0.h, #0x0100
 tst $acc0
 
-call send_back 	; 12
+call send_back 	; 10
 
 
 clr $acc0
 lri $ac0.h, #0x0010
 tst $acc0
 
-call send_back 	; 13
+call send_back 	; 11
 
 clr $acc0
 lri $ac0.h, #0x0001
 tst $acc0
 
-call send_back 	; 14
+call send_back 	; 12
 
 clr $acc0
 lri $ac0.l, #0x1000
 tst $acc0
 
-call send_back 	; 15
+call send_back 	; 13
 
 clr $acc0
 lri $ac0.l, #0x0100
 tst $acc0
 
-call send_back 	; 16
+call send_back 	; 14
 
 
 clr $acc0
 lri $ac0.l, #0x0010
 tst $acc0
 
-call send_back 	; 17
+call send_back 	; 15
 
 clr $acc0
 lri $ac0.l, #0x0001
 tst $acc0
 
+call send_back 	; 16
+
+clr $acc0
+clr $acc1
+lri $ac0.l, #0x0001
+sub $acc1, $acc0
+
+call send_back 	; 17
+
+clr $acc0
+clr $acc1
+set16
+lri $ac0.l, #0x0001
+sub $acc1, $acc0
+set40
+
 call send_back 	; 18
 
 clr $acc0
 clr $acc1
 lri $ac0.l, #0x0001
+lri $ac1.h, #0x8000
 sub $acc1, $acc0
 
 call send_back 	; 19
@@ -126,25 +133,8 @@ clr $acc0
 clr $acc1
 set16
 lri $ac0.l, #0x0001
+lri $ac1.h, #0x8000
 sub $acc1, $acc0
 set40
 
 call send_back 	; 20
-
-clr $acc0
-clr $acc1
-lri $ac0.l, #0x0001
-lri $ac1.h, #0x8000
-sub $acc1, $acc0
-
-call send_back 	; 21
-
-clr $acc0
-clr $acc1
-set16
-lri $ac0.l, #0x0001
-lri $ac1.h, #0x8000
-sub $acc1, $acc0
-set40
-
-call send_back 	; 22