Nios® V Processor Software Developer Handbook

ID 743810
Date 2/14/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

8.6.2.3. Returning from Exceptions

After returning from the ISR or software exception handler, the general exception funnel performs the following tasks:
  • Restores the registers from the stack
  • Restores the stack pointer (if a separate exception stack is used)
  • Exits by issuing an MRET (exception return in machine mode) instruction
Figure 14. HAL Exception Handling System with the Internal Interrupt Controller