May 2016
Intermediate to advanced
504 pages
12h 11m
English
Content preview from Modern Assembly Language Programming with the ARM Processor
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Chapter 14
Running Without an Operating System
Abstract
This chapter starts by describing the extra responsibilities that the programmer must assume when writing code to run without an operating system (bare metal). It then explains privileged and user modes and describes all of the privileged modes available on the ARM processor. Next, it gives an overview of exception processing, and provides example code for setting up the vector table stubs for exception handling functions on the ARM processor. Next, it describes the boot processes on the Raspberry Pi and the pcDuino. After that, it shows how to write a basic bare metal program, without any exception processing. The chapter finishes by showing a more efficient version of the bare metal ...
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