| 摘要 |
An information transfer from a first memory area to a second memory area is performed via a subsidiary memory. The information is read out of the first memory area by an upper portion of a first address designating the first memory area and is written into the subsidiary memory by a lower portion of a second address designating the second memory area. Thereafter, the information written into the subsidiary memory is read out thereof by a lower portion of the first address and is written into the second memory area by an upper portion of the second address. Thus, the information of the first memory area is rotated and transferred to the second memory area without shifting.
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