Bitwise Operations

Concept

Bitwise operations are low-level primitives that manipulate individual bits of values stored in computer memory. They are widely supported in C/C++ and Java, where they enable direct bit-level programming. Bitwise operations are used in algorithm design (e.g., fast integer sorting), set operations, and in the construction of arithmetic-logic unit (ALU) stimulus generators, where operations such as AND, OR, XOR, and NOT are generated alongside arithmetic operations using context-aware grammar production rules.

First seen 7/28/2026

Last seen 7/28/2026

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WIKI

Bitwise Operations

Bitwise operations are operations that act directly on the binary representations of values, allowing programs to manipulate individual bits of data stored in memory. They are a standard feature of low-level programming languages such as C, C++, and Java, where direct bit manipulation is used for tasks ranging from set representation to performance-critical algorithms and hardware verification.

Role in low-level programming

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Input and Output Generation for the Verification of ALU: a Use Case ← uses 90% 2e

The paper covers bitwise operations in the ALU grammar definition.

Arithmetic Logic Unit ← uses 90% 1e

The ALU supports bitwise operations such as AND, OR, XOR, and NOT.

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Input and Output Generation for the Verification of ALU: a Use Case USES Extracted graph relationship

Arithmetic Logic Unit USES Extracted graph relationship

CITATIONS

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5 citations — click to expand

[1] Bitwise operations are a standard feature of low-level programming languages such as C, C++, and Java, enabling direct manipulation of individual bits of variables in memory. The bitwise operations in relation to the concept of set

[2] Bitwise operations can be used substantially in algorithms such as an O(n) integer sorting algorithm implemented in C++. The bitwise operations related to a fast sorting algorithm

[3] An ALU considered for functional verification supports four bitwise operations (AND, OR, XOR, NOT) in addition to two arithmetic operations (ADD, SUB). IEEE EWDTS, Kazan, Russia, September 14 - 17, 2018

[4] Stimulus generation for bitwise operations uses a probabilistic constrained grammar that maintains context through production rules and their non-terminals, similarly to arithmetic operation generation. IEEE EWDTS, Kazan, Russia, September 14 - 17, 2018

[5] Operands A and B are decomposed into bit non-terminals (e.g., A7–A0, B7–B0) for grammar-based per-bit stimulus generation. IEEE EWDTS, Kazan, Russia, September 14 - 17, 2018