| 摘要 |
<p>PURPOSE:To reduce the area of a logical arithmetic part by transferring only the desired information for the arithmetic part to a static RAM of a memory part in a stand-by mode and returning said information when the stand-by mode is over. CONSTITUTION:A means to save the desired information when a stand-by request is produced and a means to return said information when a stand-by mode is over are written into a ROM3 in the form of the order control information as well as a microprogram 31. While a static RAM2 of a memory part includes a static area 21 where said desired information is stored. When a stand-by request is delivered, a control part 4 of a logical arithmetic part 1 is driven by the program 31 to save the information on a flag 5, a register 6, an ALU, etc. to the area 21 via a data bus. These information are returned when the stand-by mode is over.</p> |
