AutomationDirect DL205 - Page 348

DL205 User Manual, 4th Edition, Rev. D
5-124
Chapter 5: Standard RLL Instructions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
Shift Left (SHFL)
Shift Left is a 32-bit instruction that shifts the bits in the
accumulator a specified number (Aaaa) of places to the left. The
vacant positions are filled with zeros, and the bits shifted out of
the accumulator are lost.
In the following example, when X1 is on, the value in V2000 and V2001 will be loaded into
the accumulator using the Load Double instruction. The bit pattern in the accumulator is
shifted 10 bits to the left using the Shift Left instruction. The value in the accumulator is
copied to V2010 and V2011 using the Out Double instruction.




230
240
250-1
260
SHFL
A aaa
Operand Data Type DL230 Range DL240 Range DL250-1 Range DL260 Range
A aaa aaa aaa aaa
V-memory V All (See page 3-53) All (See page 3-54) All (See page 3-55) All (See page 3-56)
Constant K 1-32 1-32 1-32 1-32
Standard RLL
Instructions
ENT
Handheld Programmer Keystrokes
Direct SOFT
LDD
V2000
X1
Load the value in V2000 and
V2001 into the accumulator
SHFL
K10
The bit pattern in the
accumulator is shifted 10 bit
positions to the left
OUTD
V2010
Copy the value in the
accumulator to V2010 and
V2011
0011000100000001
V2010
00000000000010000000000
15 14 13 12 11 10 987654321031 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
40
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0110011100000101
15 14 13 12 11 10 9876543210
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1631 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
cc
cc
V2011
C14
6705 3101
Shifted out of the
accumulator
V2000V2001
STR

SHFT
NDST
L
3
D
3
D
SHFT
RST
S
7
H
5
F
NDST
L
OUT
X
SHFT
3
D
1

ENT
2
C
0

0

0

ENT
2
C
0

1

0

ENT
SHFT
0011000100
000001
0 00101
000
0
0
4
0


1
DS Used
HPP Used