Omron CJ2 CPU UNIT SOFTWARE - Page 560

Appendices
A-76
CJ2 CPU Unit Software User’s Manual
DELETE
STRING
DEL$
@DEL$
658 Output Required
EXCHANGE
STRING
XCHG$
@XCHG$
665 Output Required
CLEAR
STRING
CLR$
@CLR$
666 Output Required
INSERT
INTO
STRING
INS$
@INS$
667 Output Required
String Com-
parison
LD, AND,
OR +
=$, <>$,
<$, <=$,
>$, >=$
670
(=$)
671
(<>$)
672
(<$)
673
(<=$)
674
(>$)
675
(>=$)
Sting comparison instructions (=$, <>$, <$, <=$, >$, >=$) com-
pare two text strings from the beginning, in terms of value of the
ASCII codes. If the result of the comparison is true, an ON execu-
tion condition is created for a LOAD, AND, or OR.
LD: Logic
start
AND, OR:
Continues
on rung
Required
Instruction Mnemonic Code Symbol/Operand Function Location
Execution
condition
DEL$(658)
S1
S2
S3
D
S1: Text string
1st word
S2: Number of
characters
S3: Beginning
position
D: 1st
destination word
G
→→
Deletes a designated text string from the middle of a text string.
Number of characters to be
deleted (designated by S2).
S2
00
03
XCHG$(665)
Ex1
Ex2
Ex1: 1st
exchange word 1
Ex2: 1st
exchange word 2
Ex1
Ex1
Ex2
Ex2
Replaces a designated text string with another
designated text string.
CLR$(666)
S
S: Text string 1st
word
S
S
AB
CD
NUL
NUL
Clears an entire text string with NUL (00 hex).
→→
INS$(657)
S1
S2
S3
D
S1: Base text
string 1st word
S2: Inserted text
string 1st word
S3: Beginning
position
D: 1st
destination word
NUL
Deletes a designated text string from the middle of a text string.
Inserted
characters
→→
→
Symbol
S1
S2
S1
S2
S1
S2
Symbol
Symbol
S1: Text string 1
S2: Text string 2