Fixed-Point Toolbox™ 2.2

Product Description

• Introduction and Key Features
• Using Fixed-Point Data Types
• Fixed-Point Arithmetic
• Fixed-Point Data Exchange Between MATLAB and Simulink
• Floating-to-Fixed-Point Conversion
• Accelerating the Execution Speed of Fixed-Point Algorithms with Embedded MATLAB™ Code

Fixed-Point Arithmetic

Fixed-Point Toolbox uses MATLAB syntax to support fixed-point arithmetic. The toolbox provides the following functions and operators:

• Basic arithmetic operations, including addition, subtraction and multiplication
• A division function
• A square-root function
• Relational, logical, and bitwise operators
• Statistical functions, such as min and max
• User-selected overflow and rounding modes to govern all arithmetic

The toolbox lets you use four modes for performing fixed-point arithmetic:

• Fully automatic mode, enabling you to use up to 65,535 bits for the sum or product
• Fully specified mode, letting you indicate the word length and binary point location for the sum or product
• Two partially automatic modes, in which the binary point location is set automatically but you can specify the word length of the sum or product

Using the built-in plotting and visualization functions in MATLAB, you can visualize fixed-point data objects created in Fixed-Point Toolbox and analyze the results of your fixed-point design.