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US 5,845,112 AGranted
Method for performing dead-zone quantization in a single processor instruction
AssigneeSamsung Electronics Co., Ltd.
InventorsLe Trong Nguyen, Heonchul Park, Cliff Reader, Yoon Lee
Life of this patent
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Abstract
An extension to existent vector instruction sets is presented in a form of new vector instructions which perform operations specialized for efficient digital video compression and decompression. A processor is designed to implement the arithmetic operation of each of these instructions in a single clock cycle, and some of the present instructions perform arithmetic operations selectively and directly on elements of the same registers.
Claims10
A method for a processor to execute a single instruction, comprising steps of:
- reading a first data element and a second data element from source operands of the instruction;
- selecting a value from a set of predefined values, according to the sign of said first data element;
- and
- adding the first data element, the second data element, and the selected value to generate a third data element as a result of the instruction.
1 more element
Dependencies are inferred from the claim text.