Document revision date: 30 March 2001

Figures
4-1	Image Exit and Process Deletion
7-1	Model Database
7-2	Three Lock Queues
7-3	Deadlock
7-4	Lock Status Block
9-1	SS$_HPARITH Exception Signal Array
9-2	SS$_ALIGN Exception Signal Array
9-3	Format of a Condition Value
9-4	Searching the Stack for a Condition Handler
9-5	Sample Stack Scan for Condition Handlers
9-6	Format of the Signal Argument Vector
9-7	Signal Argument Vector for the Reserved Operand Error Conditions
9-8	Signal Argument Vector for RTL Mathematics Routine Errors
9-9	Format of a VAX Mechanism Argument Vector
9-10	Mechanism Array on Alpha Systems
9-11	Stack After Second Exception Condition Is Signaled
9-12	Interaction Between Handlers and Default Handlers
9-13	Unwinding the Call Stack
9-14	Formats of Message Sequences
9-15	Using a Condition Handler to Log an Error Message
9-16	Structure of an Exit Handler
10-1	32-Bit Virtual Address Space Layout
10-2	64-Bit Virtual Address Space Layout
11-1	General Format of a 32-Bit Descriptor
11-2	General Format of a 64-Bit Descriptor
11-3	Item_list_2 Format
11-4	Item_list_3 Format
11-5	Item_list_64a Format
11-6	Item_list_64b Format
11-7	item_list_64a
11-8	item_list_64b
12-1	Layout of Alpha Process Virtual Address Space
12-2	Hierarchy of Alpha Memory Management Routines
13-1	Virtual Address Overview on VAX Systems
13-2	Layout of VAX Process Virtual Address Space
13-3	Physical Address Space for VAX Systems with XPA
13-4	Virtual Address Space for VAX Systems with XVA
13-5	Hierarchy of VAX Memory Management Routines
14-1	Memory Fragmentation
14-2	Boundary Tags
15-1	Aligned and Unaligned Structures
15-2	Alignment Using VAX C Compiler
15-3	Alignment Using Compaq C Compiler
18-1	Call Frame Generated by CALLG and CALLS Instructions
18-2	Fixed-Size Stack Frame Format
18-3	Variable-Size Stack Frame Format
18-4	Structure of a VAX Argument List
18-5	Alpha Argument List Format
18-6	Argument Information (AI) Register (R25) Format
18-7	Alpha Procedure Argument-Passing Mechanisms
18-8	VAX Procedure Argument-Passing Mechanisms
18-9	Atomic Data Types and Descriptor Classes
18-10	String Data Types and Descriptor Classes
18-11	Miscellaneous Data Types and Descriptor Classes
18-12	Condition Value Format
19-1	Calling the Run-Time Library
22-1	Defining and Pasting Virtual Displays
22-2	Moving a Virtual Display
22-3	Repasting a Virtual Display
22-4	Popping a Virtual Display
22-5	Statistics Display
23-1	Mailbox Protection Fields
23-2	Physical I/O Access Checks
23-3	Logical I/O Access Checks
23-4	Physical, Logical, and Virtual I/O
23-5	I/O Function Format
23-6	Function Modifier Format
23-7	I/O Status Block
23-8	SYS$MOUNT Item Descriptor
24-1	Format of a Variable-Length Bit Field
25-1	Using Cross-Reference Routines
25-2	Summary of Symbol Names and Values
25-3	Summary of Symbol Names, Values, and Name of Referring Modules
25-4	Summary Indicating Defining Module
25-5	Output Line for LIB$CRF_OUTPUT
27-1	Predefined Output Date Formats
27-2	Predefined Output Time Formats
29-1	Participants in a Distributed Transaction
30-1	Flow of Control Accessing a Privileged Routine on VAX Systems
30-2	Components of the Privileged Library Vector on VAX Systems
30-3	Linkage for a Privileged Routine After Image Activation
31-1	ID Format
31-2	UIC Identifier Format
31-3	Facility-Specific Identifiers
31-4	Format of the Identifier Record
31-5	Format of the Holder Record
31-6	Format of the Holder Argument
31-7	Previous Per-Thread Security Model
31-8	Per-Thread Security Profile Model
33-1	Sequence of Events During Image Initialization on VAX Systems
33-2	Sequence of Events During Image Initialization on Alpha Systems
Tables
1-1	Manual Description
1-2	OpenVMS Programming Software
1-3	Compilers, Interpreters, and Assemblers
1-4	Other OpenVMS Program Development Utilities
1-5	Groups of OpenVMS Run-Time Library Routines
1-6	Groups of OpenVMS System Services
1-7	OpenVMS Utility Routines
2-1	Characteristics of Subprocesses and Detached Processes
2-2	Comparison of LIB$SPAWN, SYS$CREPRC, and C system : ( ,) Call Context Values
4-1	Routines and Commands for Controlling Processes and Kernel Threads
4-2	Process Identification
4-3	SYS$GETJPI Kernel Threads Item Codes
4-4	SYS$PROCESS_SCAN Kernel Threads Item Codes
4-5	Item-Specific Flags
4-6	Capabilities
4-7	SYSMAN Command: Class_Schedule
4-8	Class Name Qualifiers
4-9	Show Sub-Command Qualifiers
4-10	Time Manipulation System Services and Routines
4-11	Process Hibernation and Suspension
4-12	System Services and Routines Used for Hibernation and Suspension
6-1	OpenVMS Compilers
6-2	Usage Styles of Event Flags
6-3	Event Flag Routines and Services
6-4	Event Flags
7-1	Lock Manager Services
7-2	Lock Modes
7-3	Compatibility of Lock Modes
7-4	Legal QUECVT Conversions
7-5	Effect of Lock Conversion on Lock Value Block
8-1	AST System Services
8-2	System Services That Use ASTs
8-3	AST Arguments for VAX Systems and Alpha Systems
9-1	Summary of Exception Conditions
9-2	Architecture-Specific Hardware Exceptions
9-3	Exception Summary Argument Fields
9-4	Run-Time Library Condition-Handling Support Routines
9-5	Fields of a Condition Value
9-6	Severity of Error Conditions
9-7	Privilege Errors
9-8	Quota Errors
9-9	$CHFDEF Symbolic Names and Arguments on VAX Systems
9-10	$CHFDEF2 Symbolic Names and Arguments on Alpha Systems
9-11	Fields in the Alpha Mechanism Array
11-1	Contents of the General Descriptor Format
11-2	64-Bit System Services
11-3	Structures Used by_NEW_STARLET Prototypes
11-4	Functions with Dual Implementations
11-5	Functions Restricted to 32-Bit Pointers
11-6	Callbacks that Pass only 32-Bit Pointers
12-1	Page and Byte Offset Within Pages on Alpha Systems
12-2	Sample Virtual Address Arrays on Alpha Systems
12-3	Flag Bits to Set for Specific Section Characteristics on Alpha Systems
13-1	Sample Virtual Address Arrays on VAX Systems
13-2	Flag Bits to Set for Specific Section Characteristics on VAX Systems
14-1	Overhead for Area Control Blocks
14-2	Possible Values for the Block Size Attribute
14-3	Attribute Values for the Default Zone
14-4	Allocation Algorithms
15-1	Aligned Data Sizes
17-1	Main Headings in the Documentation Format for System Routines
17-2	General Rules of Syntax for Procedure Call Formats
17-3	Standard Data Types and Their Descriptor Field Symbols
17-4	Descriptor Classes of Passing Mechanisms
18-1	VAX Register Usage
18-2	Alpha Integer Registers
18-3	Alpha Floating-Point Registers
18-4	Contents of the Argument Information (AI) Register (Alpha only)
18-5	String-Passing Descriptors
20-1	OpenVMS System Access Modes
20-2	Severity Codes of Condition Value Returned
21-1	Structures Used by_NEW_STARLET Prototypes
22-1	SYS$INPUT and SYS$OUTPUT Values
22-2	Setting Video Attributes
23-1	Read and Write I/O Functions
23-2	Asynchronous Input/Output Services and Their Synchronous Versions
23-3	System Services for Translating Logical Names
23-4	Default Device Names for I/O Services
23-5	SYSGEN Buffer Object Parameters
24-1	System Service Access Routines
24-2	CLI Access Routines
24-3	Variable-Length Bit Field Routines
24-4	Integer and Floating-Point Routines
24-5	Queue Access Routines
24-6	Character String Routines
24-7	Miscellaneous Instruction Routines
24-8	Processwide Resource Allocation Routines
24-9	Performance Measurement Routines
24-10	The Code Argument in LIB$SHOW_TIMER and LIB$STAT_TIMER
24-11	Routines for Customizing Output
24-12	Miscellaneous Interface Routines
25-1	Cross-Reference Routines
27-1	Time Conversion Routines and System Services
27-2	Date/Time Manipulation Routines
27-3	Timer RTLs and System Services
27-4	Timer System Services
27-5	Available Languages for Date/Time Formatting
27-6	Format Mnemonics
27-7	Input String Punctuation and Defaults
27-8	Predefined Output Date Formats
27-9	Predefined Output Time Formats
27-10	Available Components for Specifying Formats at Compile Time
27-11	Legible Format Mnemonics
27-12	Sample Input Format Strings
30-1	Components of the VAX Privileged Library Vector
30-2	Components of the Alpha Privileged Library Vector
31-1	Using System Services to Manipulate Elements of the Rights Database
31-2	Returned Records of SYS$IDTOASC, SYS$FIND_HELD, and SYS$FIND_HOLDER
31-3	Item Code Symbols and Meanings
32-1	Logical Name Services and DCL Commands
32-2	Summary of Privileges
D-1	Generic Argument List Macros of the System Service Interface
E-1	OpenVMS Usage Data Type Entries
E-2	Ada Implementations
E-3	APL Implementations
E-4	BASIC Implementations
E-5	BLISS Implementations
E-6	C and C++ Implementations
E-7	COBOL Implementations
E-8	FORTRAN Implementations
E-9	Pascal Implementations
E-10	PL/I Implementations
E-11	VAX MACRO Implementations
E-12	RPG II Implementations
E-13	SCAN Implementations

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