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Design Compiler Command-Line Interface.pdf
Design Compiler
™
Command-Line Interface
Guide
Version 2000.05, May 2000
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2000 Synopsys, Inc. All rights reserved. This software and documentation contain confidential and proprietary
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Document Order Number: 36039-000 IA
Design Compiler Command-Line Interface Guide, v2000.05
ii
Contents
About This Guide
1.
Introduction to Design Compiler Interfaces
What’s New in This Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhancements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Known Limitations and Resolved STARs. . . . . . . . . . . . . . . . . .
Using dc_shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Managing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
1-2
1-4
1-5
1-6
1-7
1-9
Using Startup Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9
System-Wide .synopsys_dc.setup File . . . . . . . . . . . . . . . . . . . 1-12
User-Defined .synopsys_dc.setup Files. . . . . . . . . . . . . . . . . . . 1-12
Design-Specific .synopsys_dc.setup Files. . . . . . . . . . . . . . . . . 1-13
Changes to .synopsys_dc.setup File . . . . . . . . . . . . . . . . . . . . . 1-13
Including Script Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Starting Design Compiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
iii
Exiting Design Compiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Assigning an Exit Code Value . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Saving dc_shell Session Information . . . . . . . . . . . . . . . . . . . . . 1-19
Saving an Optimized Design . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Interrupting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Controlling Verbosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
UNIX Commands Within Design Compiler . . . . . . . . . . . . . . . . . . . 1-21
2. Command Syntax
Understanding the dc_shell Command Syntax . . . . . . . . . . . . . . . .
Case-Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Command and Option Abbreviation
2-2
2-3
(Tcl Mode Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Aliases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defining Aliases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Aliases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Characters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3
2-5
2-5
2-8
2-8
2-9
The Wildcard Character . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
The Comment Character . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Multiple Line Commands and Multiple Commands
per Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Redirecting and Appending Command Output . . . . . . . . . . . . . 2-12
Using the redirect Command . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Getting the Result of Redirected Commands. . . . . . . . . . . . 2-14
Using the Redirection Operators . . . . . . . . . . . . . . . . . . . . . 2-14
Command Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
iv
Successful Completion Example . . . . . . . . . . . . . . . . . . . . . 2-16
Unsuccessful Execution Examples . . . . . . . . . . . . . . . . . . . 2-16
Checking for a Null List Example . . . . . . . . . . . . . . . . . . . . . 2-16
Displaying the Value of the dc_shell_status Variable . . . . . . 2-16
Controlling the Output Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Listing Previously Entered Commands . . . . . . . . . . . . . . . . . . . . . . 2-18
Rerunning Previously Entered Commands . . . . . . . . . . . . . . . . . . . 2-20
Getting Help on Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Listing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Command Usage Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Topic Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Identifiers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Lists in dcsh Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Lists in Tcl Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
String and List Operators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Boolean Operators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Tcl Limitations Within dc_shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
3. Variables
Components of a Variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Predefined Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2
3-3
v
Considerations When Using Variables . . . . . . . . . . . . . . . . . . . . . .
Manipulating Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Listing Variable Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assigning Variable Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initializing Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating and Changing Variables . . . . . . . . . . . . . . . . . . . . . . .
Removing Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Re-creating a Variable to Store a New Value Type . . . . . . . . . .
3-3
3-4
3-5
3-5
3-7
3-8
3-9
3-9
Using Variable Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Listing Variable Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Creating Variable Groups or Changing Variable
Group Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Removing Variables From a Variable Group . . . . . . . . . . . . . . . 3-12
Using Predefined Variable Groups. . . . . . . . . . . . . . . . . . . . . . . 3-12
4. Control Flow
Conditional Command Execution . . . . . . . . . . . . . . . . . . . . . . . . . .
if Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
switch Statement (Tcl Mode Only) . . . . . . . . . . . . . . . . . . . . . . .
4-3
4-3
4-5
4-6
Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7
while Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8
for Statement (Tcl Mode Only). . . . . . . . . . . . . . . . . . . . . . . . . .
foreach Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8
foreach_in_collection Statement (Tcl Mode Only) . . . . . . . . . . . 4-10
Loop Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
vi
continue Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
break Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
end Command in Loops. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5. Searching for Design Objects in dcsh Mode
Finding Named Objects (find) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Commands That Create Lists . . . . . . . . . . . . . . . . . . . . .
Implied Order for Searches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controlling the Search Order of Object Types. . . . . . . . . . . . . . . . .
Using find With the Wildcard Character. . . . . . . . . . . . . . . . . . . . . .
Nesting find Within dc_shell Commands. . . . . . . . . . . . . . . . . . . . .
Filtering a List of Objects (filter). . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Generating Collections in Tcl Mode
Commands That Create Collections . . . . . . . . . . . . . . . . . . . . . . . .
Primary Collection Command Example . . . . . . . . . . . . . . . . . . .
Other Commands That Create Collections . . . . . . . . . . . . . . . .
Removing From and Adding to a Collection . . . . . . . . . . . . . . . . . .
Comparing Collections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copying Collections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2
5-4
5-5
5-5
5-5
5-6
5-7
6-2
6-3
6-5
6-5
6-8
6-8
Indexing Collections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Saving Collections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
vii
7. Creating and Using Procedures in Tcl Mode
Creating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the proc Command to Create Procedures . . . . . . . . . . . . . .
Programming Default Values for Arguments . . . . . . . . . . . . . . .
Specifying a Varying Number of Arguments . . . . . . . . . . . . . . .
Extending Procedures: Defining Procedure Attributes . . . . . . . . . .
Default Procedure Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Aspects of a Procedure . . . . . . . . . . . . . . . . . . . .
Format for the -define_args Option . . . . . . . . . . . . . . . . . . . . . .
7-2
7-3
7-5
7-5
7-6
7-7
7-7
7-9
Parsing Arguments Passed Into a Tcl Procedure . . . . . . . . . . . . . . 7-11
Displaying the Body of a Procedure . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Displaying the Names of Formal Parameters of a Procedure . . . . . 7-14
8. Using Scripts
Using Command Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Scripts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building New Scripts From Existing Scripts. . . . . . . . . . . . . . . . . . .
Checking Syntax and Context in Scripts . . . . . . . . . . . . . . . . . . . . .
Using the Syntax Checker . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Syntax Checker Functions . . . . . . . . . . . . . . . . . . . . . . . . . .
Syntax Checker Limitations . . . . . . . . . . . . . . . . . . . . . . . . .
Enabling or Disabling Syntax Checking . . . . . . . . . . . . . . . .
Enabling or Disabling the Syntax Checker From
Within dc_shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Invoking dc_shell With the Syntax Checker Enabled . . . . . .
8-2
8-4
8-4
8-5
8-5
8-6
8-6
8-7
8-7
8-8
viii
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