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SUDDEN 

Software Product Description 



PRODUCT NAME: PDP-11 BASIC-PLUS-2/VAX, Version 1.0 



SPD 25.10.1 



DESCRIPTION: 

BASIC is a conversational programming language de- 
veloped at Dartmouth College that uses simple En- 
glish-like statements and familiar math notations to 
perform operations. 

The BASIC-PLUS-2 language is a superset of Dart- 
mouth BASIC. In addition to the elementary BASIC 
statements, BASIC-PLUS-2 also features: 

• Terminal-format files 

• Virtual arrays 

• RMS Record I/O 

• Extensive string support 

• Full matrix package 

• Long variable names 

• IF..THEN..ELSE 

• ON ERROR condition handlers 

• Statement modifiers: IF, WHILE, UNLESS, FOR 

• User-defined functions 

• Multi-statement lines 

• Multi-line statements 

• Program segmentation: SUB, CALL, CHAIN, COM- 
MON 

• External subprograms 

BASIC-PLUS-2 uses the full ASCII character set for 
its alphabet. 

The BASIC-PLUS-2 language processor is composed 
of a compiler and an Object-Time System/Library. 

The BASIC-PLUS-2 compiler produces an object 
module from a source program. The compiler checks 
each program line for syntax errors and returns an 
appropriate message if an error is found. The user 
can then correct the program (if necessary) and com- 
pile it. Program compilations result in an object mod- 
ule that can be linked and executed at the operating 
system command level. BASIC-PLUS-2 provides a 
traceback mechanism that traces the path of program 
execution when an error occurs in a function or su- 
broutine. 

The BASIC-PLUS-2 Object-Time System/Library con- 
tains the following runtime routines: 

• Math routines which include library functions and 
arithmetic routines 

• Routines to handle dynamic allocation of string 
storage and I/O buffers 

• Routines to handle input/output operations 



• Error handling routines to process errors in arith- 
metic, I/O and system operations 

BASIC-PLUS-2 allows the user to write subprograms 
and insert them into OTS or user libraries. These 
subprograms can be written in BASIC-PLUS-2 or in 
MACRO assembly language, and are accessed by the 
CALL statement. Furthermore, BASIC-PLUS-2 pro- 
grams can access any system library routines that 
utilize the FORTRAN calling sequence. 

BASIC-PLUS-2 Record I/O operations are controlled 
with the Record Management input/output system. It 
provides sequential, relative, and indexed file or- 
ganizations. Features also include primary and alter- 
nate keys, fixed and variable length records, and rec- 
ord mapping. 

MINIMUM HARDWARE REQUIRED: 

Any valid VAX/ VMS system configuration. 

OPTIONAL HARDWARE: 

None 

PREREQUISITE SOFTWARE: 

VAX/VMS Operating System, Version 1 or later. 

OPTIONAL SOFTWARE: 

None 

TRAINING CREDITS: 

None 

SUPPORT CATEGORY: 

A — Software Support will be provided as stated in 
the Software Support Categories Addendum to this 
SPD. 

UPDATE POLICY: 

Software Updates, if any, released by DIGITAL during 
the one (1) year period following installation, will be 
provided to the customer for a media charge 
(includes no installation). After the first year, updates, 
if any, will be made available according to then pre- 
vailing DIGITAL policies. 

ORDERING INFORMATION: 

All binary licensed software, including any subse- 
quent updates, is furnished under the licensing provi- 
sions 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 



June 1978 



AE-C771 B-TE 



PDP-11 BASIC-PLUS-2/VAX, Version 1.0 



SPD 2S.10.1 



-2- 



which the software is first installed, and may be cop- 
ied, in whole or in part (with the proper inclusion of 
the DIGITAL copyright notice and any DIGITAL 
proprietary notices on the software) only for use on 
such CPU. All source licensed software is furnished 
only under the terms and conditions of a separate 
Software Program Sources Agreement between Pur- 
chaser and DIGITAL. 

Standard options with no support services are only 
available after the purchase of one supported license. 
When a software license is ordered without support 
services, the category of support applicable to such 
software is Category C. 

A single-use license only option is a license to copy 
the software previously obtained under license, and 
use such software in accordance with DIGITAL'S 
Standard Terms and Conditions of Sale. The category 
of support applicable to such copied software is Cate- 
gory C. 

The product is available only on the floppy diskette 
medium. 



Standard Options 

QE102-AY Single-use license, binaries, documenta- 
tion, support services. 

QE102-CY Single-use license, binaries, documenta- 
tion, no support services. 

QE102-DZ Single-use license only, no binaries, no 
documentation, no support services 

ADDITIONAL SERVICES: 

None 



ADDENDUM 
SOFTWARE SUPPORT CATEGORIES 
Each software product (hereinafter 'SOFTWARE') with a designated Support Category A or B in the applicable Software Product 
Description (SPD) existing at the time of order will be the current release at the time of delivery and will conform to the SPD. 
DIGITAL'S sole obligation shall be to correct defects (nonconformance of the SOFTWARE to the SPD) as described below. Any 
SOFTWARE with a designated Support Category C will be furnished on an 'as is' basis. 

For SOFTWARE with a designated Support Category A or B, DIGITAL will provide the services set forth below without additional 

charge. 

CATEGORY A 

1. Upon notification by customer to the nearest DIGITAL office that the computer system, including all required prerequisite 
hardware and software, is ready for the installation of the SOFTWARE, DIGITAL will install such SOFTWARE in any location 
within the contiguous forty-eight (48) United States, the District of Columbia, or a country in which DIGITAL or a subsidiary 
of DIGITAL has a software service facility. The notification must be received by DIGITAL and the system must be ready for 
installation within thirty (30) days after the delivery of the SOFTWARE to customer or DIGITAL will have no obligation to 
install. Installation will consist of: (1) verification that all components of the SOFTWARE have been received by customer, (2) 
loading the SOFTWARE, and (3) executing a DIGITAL sample procedure. 

2. During the ninety (90) day period after installation, if the customer encounters a problem with the current unaltered release 
of the SOFTWARE which DIGITAL determines to be a defect in the SOFTWARE, DIGITAL will provide the following remedial 
service (on site where necessary): (1) if the SOFTWARE is inoperable, apply a temporary correction (TC) or make a 
reasonable attempt to develop an emergency by-pass, and (2) assist the customer to prepare a Software Performance 
Report (SPR) and submit it to DIGITAL. 

3. During the one (1) year period following installation, if the customer encounters a problem with the SOFTWARE which his 
diagnosis indicates is caused by a SOFTWARE defect, the customer may submit an SPR to DIGITAL. DIGITAL will respond 
to problems reported in SPRs which are caused by defects in the current unaltered release of the SOFTWARE via the 
Maintenance Periodical for the SOFTWARE, which reports SPRs received, code corrections, temporary corrections, generally 
useful emergency by-passes and/or notice of the availability of corrected code. Software Updates, if any, released by 
DIGITAL during the one (1) year period, will be provided to the customer on DIGITAL'S standard distribution media as 
specified in the applicable SPD. The customer will be charged only for the media on which such updates are provided, 
unless otherwise stated in the applicable SPD, at DIGITAL'S then current media prices. 

CATEGORY B 

During the one (1) year period following delivery, the services provided to the customer will be the same as set forth in 3 above. 
CATEGORY C 

SOFTWARE is provided on an 'as is' basis. Any software services, if available, will be provided at the then current charges. 

DIGITAL shall have the right to make additional charges for any additional effort required to provide services resulting from 
customer use of other than current unaltered release of the SOFTWARE operated in accordance with the SPD.