Patent №
US 4,870,567
Granted
1989-09-26
Filed 1985
Owner
FUJITSU LIMITED A CORP OF JAPAN
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06755321
The present invention includes a suboperation code control memory which stores data for generating a heading address of a microprogram for an instruction having a suboperation code. Access to an operation code control memory by the ordinary operation code and the access to suboperation code control memory are carried out simultaneously. The heading address of the microprogram is generated by editing the data read from the respective control memories. The storage capacity needed for the suboperation memory is reduced and still no problem occurs in assigning microinstruction addresses, and the heading address of a microprogram for the instruction having a relevant suboperation code is produced without any additional time.
AI classification
Ownership
FUJITSU LIMITED A CORP OF JAPAN
assignment · 44320187
Assignors
KITAMURA, TOSHIAKI, ONISHI, KATSUMI
On an employer assignment, the assignors are typically the inventors.