DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-227
Chapter 5: Standard RLL Instructions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
ASCII Swap Bytes (SWAPB)
The ASCII Swap Bytes instruction swaps byte positions (high–byte to low–byte and low–byte
to high–byte) within each V–memory register of a series of V–memory registers for a specified
number of bytes.
DS
Used
HPP
N/A
A
B
C
D
E xx
V2477
V2500
V2501
V2502
Byte
High Low
0005h
B
A
D
C
xx
E
No Byte Swapping
(AIN, AEX, PRINTV, VPRINT)
B
A
D
C xx E
A
B
C
D
E xx
A
B
C
D
E xx
B
A
D
C
E xx
V2477
V2500
V2501
V2502
V2477
V2500
V2501
V2502
0005h
A
B
C
D
E
xx
0005h
B
A
D
C
xx
E
Byte
High Low
Byte
High Low
Byte Swap All
Byte Swap All but Null
Discrete Bit Flags
Description
SP53
On if the CPU cannot execute the instruction.
SP71
On when a value used by the instruction is invalid.
Parameter
DL06 Range
Starting Address
All V–memory
Number of Bytes
All V–memory or K1–128
Byte Swap Preferences
•
Starting Address
: specifies the beginning of a series
of V–memory registers the instruction will use to
begin byte swapping
•
Number of Bytes
: specifies the number of bytes,
beginning with the Starting Address, to byte swap.
•
Byte Swap
:
All
- swap all bytes specified.
All but null
- swap all bytes specified except the
bytes with a null
