AN 977: Nios® V Processor Custom Instruction

ID 773194
Date 4/14/2023
Document Table of Contents

4.2. Custom Instruction Manager

After instantiating the Nios V processor IP core, you can instantiate multiple custom instruction interfaces (up to 32) from the processor core. In addition, each custom instruction interface can implement extended custom instruction to support up to 4096 custom instructions.

Configure the custom instruction in Hardware Interfaces Table and Software C-Macro Table to suit your needs.

Figure 13. Custom Instruction Tab