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@c  COPYRIGHT (c) 1988-2002.

@c  On-Line Applications Research Corporation (OAR).

@c  All rights reserved.

@c

@c  preface.texi,v 1.1 2002/07/30 21:43:53 joel Exp

@c

@ifinfo

@node Preface, CPU Model Dependent Features, Top, Top

@end ifinfo

@unnumbered Preface

The Real Time Executive for Multiprocessor Systems (RTEMS)

is designed to be portable across multiple processor

architectures.  However, the nature of real-time systems makes

it essential that the application designer understand certain

processor dependent implementation details.  These processor

dependencies include calling convention, board support package

issues, interrupt processing, exact RTEMS memory requirements,

performance data, header files, and the assembly language

interface to the executive.

This document discusses the ARM architecture dependencies

in this port of RTEMS.  The ARM family has a wide variety

of implementations by a wide range of vendors.  Consequently,

there are 100's of CPU models within it.

It is highly recommended that the ARM

RTEMS application developer obtain and become familiar with the

documentation for the processor being used as well as the

documentation for the ARM architecture as a whole.

@subheading Architecture Documents

For information on the ARM architecture,

refer to the following documents available from Arm, Limited

(@file{http//www.arm.com/}).  There does not appear to

be an electronic version of a manual on the architecture

in general on that site.  The following book is a good

resource:

@itemize @bullet

@item @cite{David Seal. "ARM Architecture Reference Manual."

Addison-Wesley. @b{ISBN 0-201-73719-1}. 2001.}

@end itemize