Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 381

Data Movement Instructions
Description
Flags
Examples
342
Area
Index Registers
Indirect addressing
using Index Registers
MOVD(083) copies the content of n digits from S (beginning at digit m) to D
(beginning at digit l). Only the specified digits are changed; the rest are left
unchanged.
If the number of digits being read or written exceeds the leftmost digit of S or
D, MOVD(083) will wrap to the rightmost digit of the same word.
Note The same word can be specified for both S and D to copy a bit within a word.
Name
Error Flag ER
Four-digit Transfer
When CIO 000000 is ON in the following example, four digits of data are cop-
ied from CIO 0200 to CIO 0300. The transfer begins with the digit 1 of
CIO 0200 and digit 0 or CIO 0300, in accordance with the control word's value
of 0031.
Digit no.
Digit no.
Note After reading the leftmost digit of S (digit 3), MOVD(083) wraps to the right-
most digit (digit 0).
S
---
,IR0 to ,IR15
–2048 to +2047, IR0 to –2048 to +2047, IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –) IR0 to, –(– –) IR15
l
Label
ON if one of the first three digits of C is not within the
specified range of 0 to 3.
OFF in all other cases.
Section 3-8
C D
Operation
First digit in S: Digit 1
Number of digits: 3 (4 digits)
First digit in D: Digit 0