22.11.2.5 Memory Ring
Ring-shifts the memory data in blocks.
Performs ring-shift between the start and ending addresses in block
units (by the specified number of words). When an error occurs, the
error status is written to LS9150.
memring ([Start Address], [End Address],
Words in 1 Block)
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Parameter 1: Internal Device
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Parameter 2: Internal Device
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Parameter 3: Numeric Value (1 to 640)
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When Parameter 1 is less than Parameter 2 (P1
< P2), the block data is shifted upward.
-
When Parameter 1 is greater than Parameter 2 (P1
> P2), the block data is shifted downward.
Example expression 1:
memring ([w:[#INTERNAL]LS1000],
[w:[#INTERNAL]LS1030], 10)
(When Parameter 1 is less than Parameter 2 (P1 < P2))
Data moves upward in 10-word block units.
Example expression 2:
memring ([w:[#INTERNAL]LS1030],
[w:[#INTERNAL]LS1000], 10)
(When Parameter 1 is greater than Parameter 2 (P1 > P2))
Data moves downward in 10-word block units.
Example expression 3:
memring ([w:[#INTERNAL]LS1000],
[w:[#INTERNAL]LS1050], 10)
(When the range contains a block where all words are "0")
Data moves upward in 10-word block units only, from the starting
block to the block with "0" data. If data exists after the block
with "0" data, the data is ignored.
Example expression 4:
memring ([w:[#INTERNAL]LS1050],
[w:[#INTERNAL]LS1000], 10)
(When a block with "0" data exists within the range)
Data moves downward in 10-word block units only, from the
starting block to the block with "0" data. If data exists after the
block with "0" data, the data is ignored.
Error Status
|
Editor Function Name
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LS Area
|
Error Status
|
Cause
|
|
memring ( )
|
LS9150
|
0000h
|
Completed Successfully
|
|
0001h
|
Parameter error
|
|
0003h
|
Write/Read error
|
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The processing time required is proportional
to the range designated by the start and end addresses. The larger
the designated range, the longer the processing time becomes. The
Part is not refreshed until processing is completed.
-
The effective LS address range that can be
specified is limited to the designated user area (LS20 to LS2031
and LS2096 to LS8191).
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