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
Electrical connector
Ink, ink jet recording method, ink cartridge, and ink jet recording apparatus
Headset, terminal, and method capable of switching headset mode
Petunia plant named `Bartpet001`
Data modulation for groups of memory cells
Lookup front end packet input processor
Receiver with feedback continuous-time delta-sigma modulator with current-mode input
  Randomly Featured Patents
Controlled-release composition
Post for bath accessory
Plasma reactor
Laser doppler velocimeter
High density memory and double word ferroelectric memory cell for constructing the same
Beverage infusion device
Electrographic imaging element
Bag holder
Balloon filling and tying device
Hair conditioning and composition therefor