Xchg/Xcgl - Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual

3. Instructions

XCHG/XCGL

Instruction
DATA EXCHANGE
DOUBLE DATA EXCHANGE
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
E1 First exchange word
E2 Second exchange word
Operand Specifications
Area
CIO WR HR
XCHG E1,E2
OK OK OK
XCGL E1,E2
Flags
Name
Error Flag
Equals Flag
Negative Flag
Note In CS1D CPU Units for Duplex Systems, CS1 CPU Units, and CJ1 CPU Units, these are turned OFF.
Function
XCHG
XCHG(073) exchanges the contents of E1 and
E2.
E1
296
Mnemonic Variations
XCHG @XCHG
XCGL @XCGL
XCHG
XCHG(073)
E1: First exchange word
E1
E2: Second exchange word
E2
Block program areas Step program areas
OK OK
Description
Word addresses
AR T C DM EM
OK OK OK OK OK
Label
ER Unchanged (See note.)
= Unchanged (See note.)
N Unchanged (See note.)
E2
Function
code
Exchanges the contents of the two specified
073
words.
Exchanges the contents of a pair of consecutive
562
words with another pair of consecutive words.
XCGL(562)
Subroutines
OK
Data type
XCHG
WORD DWORD
WORD DWORD
Indirect DM/EM
Registers
addresses
Con-
stants
@DM *DM
DR
@EM *EM
OK
OK OK ---
---
Operation
XCGL
XCHG(073) exchanges the contents of E1+1
and E1 with the contents of E2+1 and E2.
E1+1 E1
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Function
XCGL
E1: First exchange word
E1
E2
E2: Second exchange word
SFC action or
Interrupt tasks
transition programs
OK OK
Size
XCGL XCHG XCGL
1
1
Flags
Pulse
bits
Indirect
IR TK CF
using IR
---
OK --- --- ---
OK
E2+1
2
2
TR
bits
---
E2