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XDS 5
Reference manual
Sigma XDS 5 Reference Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Introduction
How this Manual Is Organized
The FLAG Compiler
FLAG Programs
Sample XDS FLAG Program
Conditional Compilation - X Cards
Data
Limits on Values of Quantities
Constants
Integer Constants
Real Constants
Double Precision Constants
Complex Constants
Double Complex Constants
Logical Constants
Literal Constants
Identifiers
Variables
Scalars
Arrays
Functions
Expressions
Arithmetic Expressions
Evaluation Hierarchy
Mixed Expressions
Mode of Mixed Expressions Using
Valid Type Combinations for Exponentiations
Relational Expressions
Logical Expressions
Logical Operators
Evaluation of Logical Expressions
Evaluation Hierarchy
Assignment Statement
Control Statements
Labels
GOT 0 Statem Ents
Unconditional GO to Statement
Assigned GO to Statement
Computed GO to Statement
ASSIGN Statement
IF Statements
Arithmetic if Statement
Logical if Statement
CALL Statement
RETURN Statement
DO Statement
Subprograms
SUBROUTINE Subprograms
And Dummies
CONTINUE Statement
PAUSE Statement
STOP Statement
END Statement
Input/Output
Input/Output Lists
List Items
Special List Considerations
Input/Output Statements
Standard Unit Assignments
Formatted Input/Output Statements
Acceptable FORTRAN II Statements
FORTRAN II/FORTRAN IV Equivalent Statements
Intermediate Input/Output Statements
END and ERR Forms of the READ Statements
NAME LIST Statement
Simplified Input/Output
OUTPUT Statement
INPUT Statement Using NAME LIST
FORMAT Statement
F Format (Fixed Decimal Point)
E Format (Normalized, with E Exponent)
D Format (Normalized, with D Exponent)
G Format (General)
I Format {Integer
L Format (Logical)
A Format (Alphanumeric)
R Format (Alphanumeric, Right-Justified)
Z Format (Hexadecimal)
M Format (Machine Dependent)
H Format (Hollerith)
Format (Hollerith)
Specification (Skip; Space or Backspace)
T Specification (Tab)
P Specification (Scale Factoror Power of 10)
Specification (Record Separator)
Parenthesized FORMAT Specifications
Adjustable FORMAT Specifications
Numeric Input Strings
Widthless Numeric Input
Numeric Input with Width Specified
Comma Field-Termination
FORMAT and List Interfacing
Formats Stored in Arrays
Extended Input/Output Capabilities
Memory-To-Memory Data Conversion
ENCODE Statement
DECODE Statement
Direct Input/Output
Buffer in Buffer out
Random Access Input/Output Statements
Auxi I Iary Input/Output Statements
REWIND Statement
BACKSPACE Statement
END FILE Statement
Carriage Control for Printed Output
Declaration Statements
Classification of Identifiers
Implicit Declarations
Explicit Declarations
Conflicting and Redundant Declarations
Statement Functi Ons
Array Declarations
Array Storage
References to Array Elements
DIMENSION Statement
IMPLICIT Statement
Explicit Type Statements
Optional Size Specifications
Storage Allocation Statements
COMMON Statement
Labeled COMMON
Blank COMMON
Arrangement of COMMON
Referencing of Data in COMMON
EQUIVALENCE Statement
Interactions of Storage Allocation Statements
EXTERNAL Statement
BLOCK DATA Subprograms
DATA Statement
DATA Variable List
Placement and Order of Declaration Statements
Programs and Subprograms
Main Programs
FUNCTION Subprograms
Basic External Functions
Arguments and Dummies
Permissible Correspondences between Arguments
Dummy Scalars
Dummy Arrays
Adjustable Dimensions
Dummy Subprograms
Library Subprograms
Additional Library Subprograms
Intrinsic and Basic External Functions
Running a FLAG Job
The FLAG Control Card
FLAG Option Codes
Job Setup Examples
FLAG Debug Mode
FLAG Job Setup - Single Program
FLAG Job Setup - Multiple Programs in Batch
Flag Statements
Diagnostic Messages
Index
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Scientific Data Systems
A XEROX COMPANY
X1ClS
SIGMA 5/7
FLAG
Reference Manual
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Xds 7
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