22.11.2.6 Memory Ring

• Summary

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.

• Format

memring ([Start Address], [End Address], Words in 1 Block)

• Parameter 1: Internal Device

• Parameter 2: Internal Device

• Parameter 3: Numeric Value (1 to 640)

• 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