Motorola Corporation

Other

Yee-Wei Huang

L Rodney Goke

Robert W Seaton, Jr

Jason Spielman

Willard W Olson

Michael G Gallup, Deceased

A computer-implemented method is provided for compiling software code that performs nested conditional constructs in vector data processors (10). A vector bit stack (128) to record which processing elements (16) were activated and which processing elements were deactivated during execution of a nested conditional construct. Subsequently, when an end of a first nested conditional construct is encountered, a state of the processing elements at a point in time in which the first nested conditional construct was initiated may be popped off of the vector bit stack and a second conditional construct or any other operation may be executed. Therefore, conditional constructs may be executed while ensuring the proper state of the processing elements. The compiler program effectively utilizes the vector bit stack to store prior states of each of the processing elements of the vector data processor such that the processing elements may be efficiently restored to a correct intermediate value.

Efficient stack utilization for compiling and executing nested if-else

A method for pattern classification and, in particular, a method which distributes the classification criteria across a neural network. The classification criteria for a pattern class is stored distributively in the neural network in two aspects. First, it manifests itself as one or more levels of templates, each of which represents a fuzzily unique perspective of the pattern class. Second, the template at each level is represented by a set of fuzzy windows, each of which defines a classification criterion of a corresponding feature of the pattern class.

Method and apparatus for pattern classification using distributed

A 'vnmvh' instruction reduces a substantial number of instructions and the temporary use of a register in a software code which executes nested conditional constructs in a vector data processor (10). When the vnmvh instruction is executed, all processing elements in the vector data processor participate in the function regardless of a setting of a status bit (Vt bit) (FIG. 6). During execution of the vnmvh instruction, the least significant bits of vector register specified in an operand are negated and moved into a plurality of history bits (Vh bits) (FIG. 6). The functionality provided by execution of vnmvh instruction allows a user to execute a nested conditional construct efficiently and effectively.

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Manhattan, KS, United States of America

Yee-Wei Huang