| 摘要 |
PURPOSE:To install a bulk stack file suitable to large scale integration by transferring data between stack files through an address line with respect to microprogram memory by a sequence control part. CONSTITUTION:A micro command stored in the microprogram memory 9 is accessed in accordance with address information transmitted from the sequence control part 22 through a microprogram memory address line 13, and fetched to a pipe line register 10 in synchronizing with a clock signal CLK. Namely, the executed sequence of the micro command in the microprogram memory 9 is controlled by address information from the sequence control part 22. Thus, since the I/O data line of the stack file is shared, it is made unnecessary, and the number of connection lines to the external circuit of the sequence control part is reduced, whereby the sequence control part suitable to large scale integration, and a large capacity of a stack file can be realized. |
