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AE-H849X-TE

January 1987

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Document:	Software Product Description (Ver 3.5)
Order Number:	AE-H849X-TE
Revision:	0
Pages:	3
Original Filename:

OCR Text

Software.
Product
Description
PRODUCT NAME: VAX

PASCAL, Version 3.5

DESCRIPTION
VAX PASCAL is an implementation of the Pascal* language that accepts programs compatible with either level
of the ISO specification for Programming languages PASCAL [ISO 7185-1983(E)] as well as ANSI/IEEE
770X3.97-1983 (December, 1983). VAX PASCAL also
meets the Federal Information Processing Standard Publication (FIPS-109) requirements by accepting· programs
conforming to the ANSI standard. The compiler has been
validated for both levels of the ISO standard and for
conforming to FIPS-109. Containing extensions to the
standards, VAX PASCAL generates optimized, sharable
code that takes full advantage of the VAX hardware
floating point and character instruction sets and the virtual memory capabilities of the VMS and MicroVMS
Operating Systems. The language contains control state~
ments, data types, and predeclared procedures and
functions.

Major Pascal Language Elements

SPD 25.11.23
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64-bit D_floating data type, with an 8-bit exponent
and 56-bit mantissa, which provides a range of
0.29*10**-38 to 1.7*10**38 and a precision of 16
decimal digits

64-bit G_floating data type, with an 11-bit exponent
and 53-bit mantissa, which provides a range of 0.
56*10**-308 to 0.09*10**308 and a precision of 15
decimal digits

128-bit H_floating data type, with a 15-bit exponent
and a 113-bit mantissa, which provides a range of
0.84*10**-4932 to 0.59*10**4932 and a precision
of 33 decimal digits

• VARYING data type denoting variable-length character strings up to 65,535 characters
• Concatenation operator and set of predefined character string functions including INDEX, LENGTH, and
SUBS TR

INTEGER, REAL, CHAR, BOOLEAN, enumerated,
and subrange data types

• Language elements providing sequential and random
access to VAX RMS relative files and sequential and
keyed access to VAX RMS multikey indexed files

• ARRAY, RECORD, SET, and FILE structured data
types

• Optional attributes specification on types, type identifiers, routines, and compilation units

•

FOH, REPt:AT, and WHILE repetitive control statements

• CASE, IF-THEN, and IF-THEN-ELSE conditional
statements

• MODULE capability for combining procedures, functions, and other declarations for compilation separate
from the main program

• BEGIN ... END compound statement

• ENVIRONMENT and INHERIT attributes to control
separate and independent compilation

• GOTO statement

• UNSIGNED and SINGLE predefined types

• GET, PUT, READ, WRITE, READLN, and WRITELN
input and output procedures

• VALUE initialization section and optional value initialization in declaration section program level

• Standard set of functions and procedures

• Exponentiation operator (**)

VAX PASCAL Extensions

• OTHERWISE clause for CASE statement

• DOUBLE (D_floating or G_floating) and QUADRUPLE.
data types that support the VAX extended range and
extended precision floating point architectural features:

• Binary, hexadecimal, and octal constants
• External procedure and function declarations
• Nonpositional passing of parameters
• Def ault values for parameters

•K. Jensen and N. Wirth, "Pascal User Manual and Report", 2nd ed.,
Spring-Verlag, New York 1974

• Ability for functions to return structured types (other
than file types)

January 1987

soft Ware

AE-H849X-TE

SPD 25.11.23

VAX PASCAL, Version 3.5

Note:

As a native-mode VAX language, VAX PASCAL is integrated into the VAX Common Language Environment.
This integration provides VAX PASCAL users with:
• Support for VAX interlanguage calling standard

The dual RL02 configuration for VAX-11/730
Systems is not supported. VMS Installation
needs to be tailored to run this product on VAX111725.

Block Space Requirements (Block Cluster Size = 1):

• Access to all VMS and MicroVMS system services

VAX PASCAL compiler:
Disk space required for installation:

• Access to the facilities of the VAX Symbolic Debugger

4000 blocks
(2048K bytes)
Disk space required for permanent use: 3400 blocks
(1740.SK bytes)

• VAX Language-Sensitive Editor support
• Callable interfaces to the VAX Common Run-time
Library

Starlet library files:
Disk space required for installation:

• Callable interlaces to VAX utilities, such as SORT and
to optional products, for example VAX DATATRIEVE

3700 blocks
(1945.6K bytes)
Disk space required for permanent use: 3100 blocks
(1843.2K bytes)

• VAX Common Data Dictionary Support
• VAX Source Code Analyzer Support

These block counts ref er to the disk space required on
the system disk. The sizes are approximations; actual
sizes may vary depending on the user's system environment, configuration and software options selected.

• 31-character identifiers that can include dollar sign ($)
and underscore U
Options available to VAX PASCAL users at compile time
include:

VAXcluster Environment
VAXcluster!Local Area VAXcluster Full Support

• Run-time checks for array, character string, and
subrange bounds

This layered product is fully supported when installed on
any valid and licensed VAXcluster or Local Area
VAXcluster configuration
including
configurations
accessing a common system disk, without restrictions.

• Run-time checks for arithmetic overflow, valid case
selector values, and null pointer variables
• Generation of information for use by the VAX Symbolic Debugger and the run-time error traceback
mechanism

GROWTH CONSIDERATIONS

The minimum hardware requirements for any future version of this product may be different than the minimum
hardware requirements for the current version.

• Creation of an environment file facilitating separate
compilation

OPTIONAL HARDWARE

• Cross-reference listing

• Printing of information-level messages, flagging uses
VAX PASCAL extensions to the ISO and ANSI standard.

Floating point intensive applications should be run on
configurations with the appropriate hardware support for
the floating point data types being used. Consult the
Base Operating System SPD for the Floating Point
Accelerator or other floating point hardware appropriate
for your configuration.

SOURCE CODE INFORMATION

PREREQUISITE SOFTWARE

The following source code modules are provided on all
available distribution media for this product: LIBDEF.
PAS, MTHDEF.PAS, PASCAL.CLO, PASCAL.HLP,
PASDEF.PAS,
PASSTATUS.PAS,
SIGDEF.PAS,
PASCTEST.PAS, and PASCAL.FOL. The source code
modules are provided in order to install and describe the
product, and include sample test program, help file, and
system definition inclusion files.

For VAX Systems:

• Creating in the listing file a representation of the
object code generated by the compiler

VAXNMS Operating System
For MicroVAX Systems (I and II):

MicroVMS Operating System*
For VAXStation Systems (I and II):

MicroVMS Operating System*
MicroVMS Workstation Software

This source code is provided on an "AS IS" basis
without any warranty of any kind, either express or
implied.

MINIMUM HARDWARE REQUIRED

Both the MicroVMS Extended Base component and
the MicroVMS Program Development component are
required.

Refer to the VAX/VMS Systems Software Order Table for
processor support.

Refer to the VAX/VMS Systems Software Order Table for
the required version(s).

A valid VAX, MicroVAX (I or II) VAXstation (I or II)
system configuration.

OPTIONAL SOFTWARE

VAX Language-Sensitive Editor (LSE)

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VAX PASCAL, Version 3.5

SPD 25.11.23

VAX Common Data Dictionary (COD)
VAX Source Code Analyzer (SCA)

The license gives you the right to use the software on a
single CPU and the Distribution and Documentation
Option provides the machine-readable software and
related documentation.

SOFTWARE WARRANTY

Warranty for this software product is provided by
DIGITAL with the purchase of a license for the product
as defined in the Software Warranty Addendum of this

To use this software product on additional CPUs, you
must purchase for each CPU as a minimum:

SPD.

e Single-Use License Option

INSTALLATION

In addition to the right to use, the license gives you the
one-time right to copy the software from your original
CPU installation to the additional CPU. Therefore, the
Distribution and Documentation Option is not required,
but optional.

This software product can be installed by the customer
using the step-by-step documentation available for this
product. Optionally you can purchase DIGITAL Installation Services which provide for the installation of the
software product by an experienced DIGITAL Software
Specialist.

VAXcluster License Option

You are eligible for a VAXcluster License Option on your
second or each subsequent CPU that is part of a
VAXcluster system. This is a Single-Use License offered
at a reduced price and provides all of the License rights
described above. A standard, Single-Use License Option
(example: Qxxxx-UZ) is required with the first purchase
of this software product and is also required for the first
CPU of a VAXcluster system.

Courtesy Installation Service

This software product will be installed by DIGITAL at no
additional charge if you purchase it concurrent with a
Startup Service Package that includes installation service. Both the host operating system and this product
must be installed concurrently.
ORDERING INFORMATION

For software configuration purposes, a VAXcluster system is a set of VAX processors, each running the VMS
operating system, where each VAX processor has a
direct path to every other VAX processor via Computer
Interconnect (Cl) Bus.

Singie-Use iicensed software is furnished under the
licensing provisions of DIGITAl's Standard Terms and
Conditions of Sale, which provide, in part, that the software and any part thereof may be used on only the
single CPU on which the software is first installed, and
may be copied, in whole or in part (with the proper
inclusion of DIGITAL's copyright notice and any proprietary notices on the software) for use on that same CPU.

Distribution and Documentation Option

The Distribution and Documentation Option provides the
machine-readable software and the basic documentation. You must have, or order, a Single-Use License to
obtain this option. You will need this option to install the
software for the first time. When revised versions of this
sofiware produt;t b~wrne availab:e, they may also be
obtained by purchasing this option again.

You will need a separate license for each CPU on which
you will be using the software product (except as otherwi!=;e i:;oecified bv DIGITAU. Then. Materials and Service
option's are sefected to utilize tiie product effectively.
THE LICENSE OPTIONS ARE DESCRIBED BELOW. IF
YOU ARE NOT FAMILIAR WITH THE SERVICE
OPTIONS, YOU MAY OBTAIN THE APPROPRIATE
SOFTWARE PRODUCT SERVICE DESCRIPTION(S)
FROM YOUR LOCAL DIGITAL OFFICE.

Software Revision Right-To-Copy Option

The Right-To-Copy Option allows a customer with multiple CPUs to copy a revised version of a software product
from one CPU to another. Each CPU must be licensed
for that product. You first install the revised software on
one CPU; then you can make copies for additional CPUs
by purchasing the Right-To-Copy Option for each additional CPU.

The base option number for this software product is
0*126.
*Denotes processor variant.
LICENSE OPTIONS

Documentation-Only Option

Single-Use License Option

The Documentation-Only Option provides one copy of
the basic documentation.

The Single-Use License is your right to use the software
product on a single CPU.

Software Product Services

For your first installation of this software product you
must purchase as a minimum:

A variety of service options are available. For more
information on these or other services, please contact
your local DIGITAL office.

• Single-Use License Option, and
• Distribution and Documentation Option

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