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The Verilog PLI Handbook.pdf
Front-cover
Front-matter
Dedication
Table of Contents
About the Author
List of Examples
Foreword
Acknowledgments
Introduction
CHAPTER 1 Creating PLI Applications Using VPI Routines
CHAPTER 2 Interfacing VPI Applications to Verilog Simulators
CHAPTER 3 How to Use the VPI Routines
3.1 specification of $show_all_nets and $show_all_signals
3.2 The VPI routine library
3.3 Advantages of the VPI library
3.4 Verilog HDL objects
3.4.1 The vpiHandle data type
3.4.2 Object relationships
3.5 Obtaining object handles
3.5.1 Obtaining ahandle for a one-to-one relationship
3.5.2 Obtaining a handle for a one-to-many relationship
3.5.3 Comparing VPI handles
3.6 Accessing the arguments of asystem task/function
3.7 Printing messages from VPI applications
3.8 Accessing object properties
3.8.1 Object type properties
3.8.2 Object name properties
3.9 Reading the logic values of Verilog objects
3.10 Reading the current simulation time
3.11 Controlling simulation from PLI applications
3.12 A complete PLI application using VPI routines
3.13 Obtaining handles for reg and varibale data types
3.13.1 Acomplete PLI application for $show_all_signals
3.14 Obtaining a handle to the current hierarchy scope
3.15 Obtaining handles to multiple task/function arguments
CHAPTER 4 Details about the VPI Routine Library
4.1 PLI application performance considerations
4.2 The VPI string buffer
4.3 VPI error handling
4.4 VPI object diagrams
4.5 Obtaining handles for objects
4.5.1 Traversing one to one relationships
4.5.2 Traversing one to many relationships
4.5.3 When to use vpi_free_object() on iterator handles
4.5.4 Obtaining intermodule path object handles
4.5.5 Obtaining object handles using an object's name
4.5.6 Obtaining object handles using an object's index number
4.5.7 Obtaining handles for reg, variable and net arrays
4.6 System task and system function objects
4.6.1 System task/function arguments
4.6.2 Multiple instances of system tasks and system functions
4.6.3 Obtaining a handle for system task/function instance
4.6.4 Accessing the arguments of system tasks and system functions
4.7 Storing data for each instance of a system task/function
4.8 Traversing Verilog hierarchy using object relationships
4.9 Writing messages to files
4.10 Reading and using simulation times
4.11 User-defined invocation options
4.12 Controlling Simulations
CHAPTER 5 Reading and Modifying Values Using VPI Routines
5.1 Accessing objects which have logic values
5.2 Reading object logic values
5.2.1 Working with a 4 logic value multiple strength level system
5.2.2 The vpi_get_value() routine
5.2.3 Reading 2 state logic as 32 bit c integers
5.2.4 Reading 2 state logic as C doubles
5.2.5 Reading Verilog string values into C strings
5.2.6 Reading 4-state logic as c strings
5.2.7 Reading verilog 4-state logic vectors as encoded a val/bval pairs
5.2.8 Representing Verilog strength values in C
5.2.9 Reading verilog time variables
5.2.10 Reading verilog values without determining the verilog data type
5.3 Writing values to Verilog objects
5.4 Returning logic values of system function
5.5 Reading and writing automatic variables
5.6 Reading IEEE 1364-2001 verilog attributes
5.7 Reading IEEE 1364-1995 specparam constant attributes
5.8 Accessing verilog net, reg, memory and arrays
5.9 Reading and modifying delay values
5.9.1 Verilog objects which have delay values
5.9.4 Writing delay values into an object
CHAPTER 6 Synchronizing to Simulations Using VPI Callbacks
CHAPTER 7 Interfacing to C Models Using VPI Routines
CHAPTER 8 Creating PLI Applications Using TF and ACC Routines
CHAPTER 9 Interfacing TF/ACC Applications to Verilog Simulators
CHAPTER 10 How to Use the TF Routines
CHAPTER 11 Reading and Writing Values Using TF Routines
CHAPTER 12 Synchronizing toSimulations Using Misctf Routines
CHAPTER 13 Interfacing to C Models Using TF Routines
CHAPTER 14 How to Use the ACC Routines
CHAPTER 15 Details on the ACC Routine Library
CHAPTER 16 Reading and ModifyingValues Using ACC Routines
CHAPTER 17 Using the Value Change Link (VCL)
CHAPTER 18 Interfacing to C Models Using ACC Routines
The Verilog PLI Handbook
A User's Guide
Comprehensive Reference
Verilog Programming Language Interface
and
on the
Second Edition
THE KLUWER INTERNATIONAL SERIES
IN ENGINEERING AND COMPUTER SCIENCE
The Verilog PLI Handbook
A User’s Guide
and
Comprehensive Reference
on the
Verilog Programming Language Interface
Second Edition
by
Stuart Sutherland
Sutherland HDL, Inc.
KLUWER ACADEMIC PUBLISHERS
NEW YORK, BOSTON, DORDRECHT, LONDON, MOSCOW
CD-ROM available only in print edition.
eBook ISBN: 0-306-47665-7
0-7923-7658-7
Print ISBN:
©2002 Kluwer Academic Publishers
New York, Boston, Dordrecht, London, Moscow
Print ©2002 Kluwer Academic Publishers
Dordrecht
All rights reserved
No part of this eBook may be reproduced or transmitted in any form or by any means, electronic,
mechanical, recording, or otherwise, without written consent from the Publisher
Created in the United States of America
Visit Kluwer Online at:
and Kluwer's eBookstore at:
http://kluweronline.com
http://ebooks.kluweronline.com
Dedication
To my wonderful wife, LeeAnn, and
my children: Ammon, Tamara,
Hannah, Seth and Samuel
Table of Contents
Dedication
Table of Contents
About the Author
List of Examples
Foreword
Acknowledgments
Introduction
Intended Audience:
The IEEE 1364 Verilog PLI standard
The history of the Verilog PLI
1985: The TF routines
1988: The ACC routines
1990: The OVI PLI 1.0 standard
1993: The OVI PLI 2.0 standard
1995: The IEEE 1364-1995 PLI standard and VPI routines
2001: The IEEE 1364-2001 PLI standard
Ambiguities in the Verilog PLI standard
Organization of this book
About the PLI examples in this book
Other sources of information
v
vii
xv
xvii
xxi
xxiii
1
1
2
2
2
3
3
3
4
4
5
5
6
7
viii
Using The Verilog PLI
Part One: The VPI Portion of the Verilog PLI Standard
Creating PLI Applications Using VPI Routines
CHAPTER 1:
1.1
1.2
1.3
1.4
1.5
The capabilities of the Verilog PLI
General steps to create a PLI application
User-defined system tasks and system functions
The $hello PLI application example
The $show_value PLI application example
Interfacing VPI Applications to Verilog Simulators
CHAPTER 2:
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
General PLI terms as used in this book
System tasks and system functions
Instantiated Verilog designs
How PLI applications work
calltf routines
compiletf routines
sizetf routines
VPI Simulation callback routines
PLI routine inputs and outputs
A complete system function example — $pow
Interfacing PLI applications to Verilog simulators
Using the VPI user_data field
Compiling and linking PLI applications
How to Use the VPI Routines
CHAPTER 3:
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
Specification of $show_all_nets and $show_all_signals
The VPI routine library
Advantages of the VPI library
Verilog HDL objects
Obtaining object handles
Accessing the arguments of a system task/function
Printing messages from VPI applications
Accessing object properties
Reading the logic values of Verilog objects
Reading the current simulation time
Controlling simulation from PLI applications
A complete PLI application using VPI routines
Obtaining handles for reg and variable data types
Obtaining a handle to the current hierarchy scope
Obtaining handles to multiple task/function arguments
11
11
13
14
15
19
27
27
29
31
34
36
37
39
41
42
42
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