289
Data Movement Instructions
Section 3-8
Description
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.
Flags
Examples
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.
Note After reading the leftmost digit of S (digit 3), MOVD(083) wraps to the right-
most digit (digit 0).
Index Registers
---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047, IR0 to –2048 to +2047, IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –) IR0 to, –(– –) IR15
Area
S
C
D
l
Name
Label
Operation
Error Flag
ER
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.
First digit in D: Digit 0
First digit in S: Digit 1
Number of digits: 3 (4 digits)
Digit no.
Digit no.
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
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Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...