MATLAB Language Support

MATLAB^® language syntax and functions for HDL code generation

The MATLAB functions and language syntax supported for HDL code generation are available from this page. If your MATLAB algorithm uses an unsupported function, you can generate code by replacing the function with a lookup table approximation. See Replacing Functions Using Lookup Table Approximations.

Functions

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HDL Optimized Arithmetic Operations

`hdl.treesum`	Sum of array elements using tree architecture (Since R2022a)
`hdl.treeprod`	Product of array elements using tree architecture (Since R2022a)

Interpolation Function

hdl.interpn Find interpolated value based on n-dimensional input data (Since R2024b)

Topics

Functions Supported for HDL and HLS Code Generation
Built-in MATLAB and toolbox functions supported for HDL and High-Level Synthesis (HLS) code generation.
Supported MATLAB Data Types, Operators, and Control Flow Statements
Supported data types, operators, and control flow statements for HDL and High-Level Synthesis (HLS) code generation.
Complex Data Type Support
Describes how complex signals and operations in MATLAB code map to generated HDL code.
Bitwise Operations in MATLAB for HDL and HLS Code Generation
HDL Coder™ supports bit shift, bit rotate, bit slice operations that mimic HDL-specific operators without saturation and rounding logic.
Persistent Variables and Persistent Array Variables
MATLAB persistent variable and persistent array variable language support language support for HDL and High-Level Synthesis (HLS) code generation.
Load constants from a MAT-File
Use the coder.load function to load constants from a MAT-file.
Guidelines for Writing MATLAB Code to Generate Efficient HDL and HLS Code
Guidelines for writing efficient MATLAB code and design requirements for efficient HDL and High-Level Synthesis (HLS) code generation.
For-Loop Best Practices for HDL Code Generation
Best practices when using for loops in your MATLAB code for HDL code generation.