# CPU Abstraction

## Introduction

This component of the Shelter kernel allow for basic CPU functions abstractions, like ASM instruction, serial output and TSC utilities.

## Summary

1) [ASM instructions](asmint.md)
2) [Serial outputing API](serial.md)
3) [TSC API](tsc.md)
4) [PIC API](pic.md)
5) [PIT API](pit.md)
6) [Application processors subsystem](ap.md)