US PATENT SUBCLASS 712 / 223
.~ Logic operation instruction processing


Current as of: June, 1999
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712 /   HD   ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: PROCESSING ARCHITECTURES AND INSTURCTION PROCESSING (E.G., PROCESSORS)

220  DF  PROCESSING CONTROL {12}
223.~ Logic operation instruction processing {1}
224  DF  .~.~> Masking


DEFINITION

Classification: 712/223

Logic operation instruction processing:

(under subclass 220) Subject matter for control of execution or processing of instruction data peculiar to logic operation (e.g., AND, OR, exclusive OR, etc.).

(1) Note. This subclass provides for the control of execution of instruction data peculiar to logical operations. Digital logic, per se, (e.g., AND gates, OR gates, combinations of gates, etc.) is classified elsewhere. See SEE OR SEARCH CLASS note below.

(2) Note. This subclass is concerned with processing instruction data within a processor. Processing of pixels using logical operation in the field of computer graphics processing, however, are classified elsewhere. See SEE OR SEARCH CLASS note below.

SEE OR SEARCH CLASS

326, Electronic Digital Logic Circuitry, appropriate subclasses for logic circuit and interface, per se.

345, Computer Graphic Processing, Operator Interface Processing, and Selective Visual Display Systems,

523+, for logical operations in computer graphics.