Varian Data 620/i System Reference Manual page 142

Octal
00
00
00
00
Octal
OP Code
Table G-2
Control Instruction Group Codes
(Single-Word, Non-Addressable)
Op Code
Mnemonic
HLT
N¢P
R¢F
S¢F
Octal
M Field
U
8
0=
A or B
1 =
A & B
M
A
Field
Field Instruction
0
XXX
Halt
5
000
No Operation
7
400
Reset Overflow
7
401
Set Overflow
Table G-3
Sh ift Instruction Group
Table G-3(a)
Instruction Format
A Field
U
7
U
6
U
5
O=B
o
= Left 0=
Arith.
U
4
U
3
Timing
(Cycles)
1
1
1
1
U
2
U
1
U
o
1 = A 1
= Right 1
=
Shift Count
Logical
(0 - 31)
rotate
G-3