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
Ink composition, ink for inkjet recording and ink set using the ink
Charging seat having cleaning member
Metal colloidal particles, metal colloid and use of metal colloid
Variable speed traffic control system
Apparatus and method for efficient transmission of acknowledgements
Lid for a container
Device, system, and method for logging near field communications tag interactions
  Randomly Featured Patents
Magnet brush cleaning apparatus for electrophotographic copying machine
Crank angle detecting system for engines
Volatile and nonvolatile random access memory cell
Color toner comprising two binder resins of differing softening point
Transmitting power control circuit
Paint brush cleaning funnel
Focus adjustment device having restricting means for restricting a selecting action according to the degree of nearness of a distance measurement
Pad transfer apparatus for chemical mechanical planarization
Press-flat centrifuge tube and specimen collection assembly comprising same
Method for the continuous production of polybutyleneterephthalate from terephthalic acid and butanediol