Control Data Cyber 170 State Hardware Reference Manual page 81

CP Branch
Instructions
CP Branch lnstructions
The branch i n s t r u c t i o n s ( t a b l e 4-2) c o n s i s t of both c o n d i t i o n a l and
u n c o n d i t i o n a l branch i n s t r u c t i o n s . Each c o n d i t i o n a l branch i n s t r u c t i o n
compares t h e c o n t e n t s of two g e n e r a l r e g i s t e r s t o determine whether
a normal
o r
a branch e x i t i s taken.
Table 4-2. CP Branch I n s t r u c t i o n s
Opcode Format I n s t r u c t i o n Mnemonic
030
j
K Branch
t o
K i f ( X j ) = 0 ZR
03 1 jK Branch
t o
K i f ( X j )
#
0 NZ
032 j K Branch t o K i f ( X j )
i s
p o s i t i v e PL
033
j
K Branch t o K i f ( X j )
i s
n e g a t i v e NG
034 j K Branch t o K i f
(
Xj) i s i n range I R
035
j K
Branch t o K i f (Xj) i s o u t of range
OR
036 j K Branch t o K i f ( X j ) i s d e f i n i t e
DF
037 j K Branch t o K i f ( X j )
i s
i n d e f i n i t e I D
04 i j K Branch t o K i f ( B i ) = ( B j ) EQ
051 j K Branch t o K i f ( B i ) ( B j )
NE
0 6 i j
K Branch t o K i f ( B i )
>
( B j )
GE
0 7 i jK Branch t o
K
i f ( B i ) ( B j ) LT