Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Microcode control mechanism utilizing programmable microcode repeat counter










Image Number 7 for United States Patent #4556938.

A microcode control mechanism is provided for producing the sequences of microwords used to control the execution of processor instructions in a microprogrammed data processor. This microcode control mechanism includes sequence counter circuitry for supplying a sequence of numbers and a programmable logic array mechanism responsive to the processor instruction and to the sequence of numbers for producing a sequence of microwords needed to execute the instruction. The microcode control mechanism also includes repeat circuitry responsive to a predetermined microword produced by the programmable logic array mechanism for setting the sequence counter circuitry back to a count which is less than the current count for causing a selected portion of the microword sequence to be repeated. The microcode control mechanism further includes a programmable repeat counter for counting the number of times the selected portion is repeated and for disabling the repeating action after a selected number of repeats.








 
 
  Recently Added Patents
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
Methods for measuring media performance associated with adjacent track interference
Generating a representation of an object of interest
RPM Controlled Wind Power Generation System
Method for transforming a single reactor line
Method and system for providing status of a machine
Carbonate and carbamate modified forms of glucocorticoids in combination with .beta..sub.2 adrenergic agonists
  Randomly Featured Patents
Coating material composition with gas-barrier property, process for producing the same, and gas-barrier packaging container obtained therefrom
Neutral-aged hydrophobic silica gels with reduced surface area
Variable angle eddy current probe
Transmission line directional coupling
Compositions and method for inhibition of HIV production
Bag for storing and washing produce
Method and apparatus for direct torque control of a three-phase machine
Automotive wheel center nut
Selective removal of perfluoroisobutylene from streams of halogenated hydrocarbons
Soybean variety XR33Y10