Nios® II Software Developer Handbook

ID 683525
Date 8/28/2023
Public
Document Table of Contents

9.5.2. General Exception Funnel

The general exception funnel provided with the HAL is located at the Nios® II processor’s exception address. When a software exception or internal hardware interrupt occurs, and control transfers to the general exception funnel, it does the following:
  • Switches to the separate exception stack (if enabled)
  • Stores register values onto the stack
  • Determines the type of exception, and passes control to the software exception funnel or the hardware interrupt funnel