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DL205 User Manual, 4th Edition, Rev. B
5–228
Chapter 5: Standard RLL Instructions - ASCII
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.
• Starting Address : specifies the begining
of a series of V–memory registers the
instruction will use to begin byte
swapping
• Number of Bytes : specifies the number
of bytes, begining with the Starting
Address, to byte swap
ý
ý
ý
þ
230
240
2 5 0 -1
2 6 0
Parameter DL260 Range
Starting Address All V-memory (See page 3-56)
Number of Bytes All V-memory (See page 3-56) or K1 to 128
Discrete Bit Flags Description
SP53 On if the CPU cannot execute the instruction.
SP71 On when a value used by the instruction is invalid.
A
B
C
E
D
xx
V2000
V200 1
V2002
V200 3
High Low
N o B yte S w app i n g
B yte S w ap A ll
B A
D
xx
C
E
V2000
V200 1
V2002
V200 3
High
Low
000 5 h
B yte S w ap A ll bu t N u ll
B A
D
xx
C
E
V2000
V200 1
V2002
V200 3
High
Low
000 5 h
B yte
B yte
000 5 h
B yte
( A I N , A E X, PR I N T V , V PR I N T )
B yte S w ap
P r e f e r en c e s
B C D E A
A D C E B
B C D E A
B C D E A
A D C E B
DS Used
HPP N/A