Control Data Cyber 170 State Hardware Reference Manual page 35

Instruction Section
Increment
Sequence
The increment sequence c o n t r o l s t h e o n e ' s complement a d d i t i o n and s u b t r a c t i o n
of 18-bit f i x e d - p o i n t operands f o r increment i n s t r u c t i o n s 50 through 77. The
sequence a l s o c o n t r o l s t h e 6 0 - b i t o n e ' s complement
sum
and d i f f e r e n c e v a l u e s
f o r long-add i n s t r u c t i o n s 36 and 37.
The increment i n s t r u c t i o n s a r e :
50
S e t Ai t o ( A j )
+
K SAi Aj
+
K
5 1 S e t Ai t o ( B j )
+
K
52 S e t Ai t o (Xj)
+
K
SAi B j
+
K
SAi X j
+
K
5 3 S e t A i t o (Xj)
+
(Bk) SAi X j
+
Bk
54
S e t
Ai
t o ( A j )
+
(Bk)
55 S e t Ai t o (Aj)
-
(Bk)
56 S e t Ai t o ( B j )
+
(Bk)
SAi Bj
+
Bk
57 S e t Ai t o ( B j )
-
(Bk) SAL Bj
-
Bk
60 S e t B i t o ( A j )
+
K
6 1 S e t B i t o ( B j )
+
K
SBi A j
+
K
SBi B j
+
K
62 S e t B i t o ( X j )
+
K
SBi X j
+
K
6 3 S e t B i t o ( X j )
+
(Bk) SBi X j
+
Bk
64 S e t Bi t o ( A j )
+
(Bk)
65 S e t B i t o (Aj)
-
(Bk)
SBi A j
+
B k
SBi A j - B k
66 S e t B i t o ( B j )
+
(Bk)
SBi B j
+
Bk
67
S e t B i t o (Bj)
-
(Bk)
SBi Bj
-
Bk
70 S e t X i t o ( A j )
+
K
7 1 S e t X i t o ( ~ j )
+
K
SXi Aj
+
K
SXi Bj
+
K
72 S e t X i t o ( X j ) + K SXi X j
+
K
73 S e t X i t o ( X j )
+
(Bk)
74 S e t X i t o ( A j )
+
(Bk)
SXi Xj
+
Bk
SXi A j
+
B k
75 S e t X i t o ( ~ j )
-
(Bk) SXi A j
-
B k
76 S e t X i t o ( ~ j )
+
( ~ k )
77 S e t X i t o ( B j ) - ( B k )