Resources Contact Us Home
Data processor capable of handling an increased number of operation codes

Image Number 4 for United States Patent #6339821.

A data processor is provided to increase the number of instructions it can handle, even with a large number of operands required for the instructions. The data processor comprises a decoding circuit (1) extracting bits (a1, a2) of an instruction as first operand fields and decoding an operation code, using the remaining bits (a4); an operand-field storage portion (3) including a first operand-field storage portion (3a) storing bits (a1, a2) obtained from the decoding circuit (1) via a selector (2), and a second operand-field storage portion (3b) storing a second operand field obtained on the basis of those bits (a2); and a data processing portion (5) receiving the first and the second operand fields from the operand-field storage portion (3) and processing data in registers designated by the first and the second operand fields.

  Recently Added Patents
Pre-primed roofing membrane
Sense-amplifier monotizer
Recovering a database to any point-in-time in the past with guaranteed data consistency
Glycosyltransferase promoter
Visual indicator of online backup
Method of optimizing air mover performance characteristics to minimize temperature variations in a computing system enclosure
Network decoys
  Randomly Featured Patents
Vertical mount connector
System and method for managing mobile communications
Store cash depositing and dispensing apparatus, store cash depositing and dispensing system, and store cash depositing and dispensing management method
Scanning camera
Lactone modified, esterfied or aminated additives useful in oleaginous compositions and compositions containing same
Air massaging device with a precise pressure control
Apparatus for repairing conductor insulation
Medical imaging apparatus