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Chapter 1 Introduction

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What Is an Intrinsic?
What Is an Intrinsic Mechanism?
Many programs use procedures or subroutines to handle recurring tasks. In the MPE/iX operating system many of these tasks are performed by a set of system procedures called intrinsics. Intrinsics are available to any process which has the capabilities required to call the intrinsic.

The tasks that intrinsics handle include:

  • Accessing and altering files

  • Requesting various utility functions

  • Accessing system resources

  • Manipulating and managing processes and system resources

  • Returning values to a caller through the use of parameters or functional returns

Intrinsics are no different from procedures that you would write for yourself, except that the details of performing a task are invisible.



Preface

What Is an Intrinsic?