EDN

4-bit ALU using VHDL

The project is a 4-bit ALU in VHDL with a total of 16 operations which includes various arithmetic, logical and data calculations performed by coding the ALU in VHDL code. The project is a 4-bit ALU ...
Nature

Implementation of half adder and half subtractor with a simple and universal DNA-based platform

As a powerful material, DNA presents great advantages in the fabrication of molecular devices and higher-order logic circuits. Herein, by making use of the hybridization and displacement of DNA ...
EDN

Logic 101 – Part 2 – Positive vs Negative Logic

1. Logical versus arithmetic views of a digital function. Having said this, it is generally preferable to employ a single consistent format to cover both cases, and it is easier to view logical ...
Security Boulevard

Simplifying MBA obfuscation with CoBRA

Mixed Boolean-Arithmetic (MBA) obfuscation disguises simple operations like x + y behind tangles of arithmetic and bitwise operators. Malware authors and software protectors rely on it because no ...