Varian Data 620/i System Reference Manual page 143

Us
U
7
U
6
0 0 0
0
0 0
0 0 1
0
0 1
0
1 0
0 1 0
0 1 1
0 1
1
1
a
0
1
a
0
1
0
1
1
0
1
1 1 0
1 1 0
1 1 1
1
1 1
Octal
Class Code
00
U
5
Mnemonic
0 ASLB
1
LRLB
0
ASRB
1
LSRB
0
AS LA
1
LRLA
0 ASRA
1
LSRA
0
LASL
1 LLRL
a
LASR
1 LLSR
0
1
0
1
Table G-3(b)
Instruction Format
Shift Instruction
Arithmetic Shift B Left
Logical Rotate B Left
Arithmetic Shift BRight
Logical Shift BRight
Arithmetic Shift A Left
Logical Rotate A Left
Arithmetic Shift A Right
Logica I Shift A Right
Long Arithmetic Shift A, B Left
Long Logical Rotate A, B Registers Left
Long Arithmetic Shift A, BRight
Long Logical Sh ift
I
A
I
B Registers
Invalid
Invalid
Inval id
Inval id
Table G-4
Timing
(Cycles)
1 + O. 25n
1 + O. 25n
1 + O. 25n
1 + O. 25n
1 + O. 25n
1 + O. 25n
l+O.25n
1 + O. 25n
1 + O.50n
1 + O.50n
1 + O.50n
1 + O.50n
Register Change Instruction Group
M
Field
Us
U
7
0
0
5
1
1
Table G-4{a)
Instruction Format
A Field
Source
Dest.
U
6
U
5
U
4
U
3
U
2
U
1
0
1
a
x
B
A X B
1
U o
Type of Transfer
Transfer Unchanged
Transfer Incremented
A Transfer Complemented
Transfer Decremented
Note: Multiple source transfer results in inclusive-OR; multiple source
complemented results in complement inclusive-OR.
G-4