Trap Handlers

Overview

Trap Handler.

Exception and Interrupt Dispatchers.

This module handles the low-level context saving and dispatching when the CPU encounters an interrupt or exception.

Note

During normal scenario, handling IRQ should be automated. Meaning that user no need care about this portion of code.

Topics
	API Functions
	Function definitions for interrupt handler, exception.
	Assembly Context Helpers
	Macros to abstract XLEN (32 vs 64-bit) for inline assembly.