| 摘要 |
PURPOSE:To transfer data at a high speed to a transferee area of an optional form from a transferer area of an optional form by producing the address of a transfer area based on the difference between the head addresses of a line and the next line of the transfer area as well as the number of line transfer words. CONSTITUTION:A 1st numerical value generator 110 which produces the difference between the head addresses of a line and the next line of a transferer area, a 2nd numerical value generator 120 which produces the number of line transfer words of the transferer area, a 3rd numerical value generator 140 which produces the difference between the head addresses of a line and the next line of a transferee area, a 4th numerical value generator 150 which produces the number of line transfer words of the transferee area are provided. A transferer address generating circuit 100 produces successively the addresses of areas of optional forms based on the values produced by both generators 110 and 120. While a transferee address generating circuit 130 produces successively the addresses of areas of optional forms based on the values produced by both generators 140 and 150. Thus the data can be transferred at a high speed to the transferee area of an optional form from a transferer area of an optional form. |
