Atari User Magazine Vol 1 Issue 07 by Paul Rixon

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If you run any kind of cash-based business and you want total financial control without knowing anything about accounting. take a look at Cash Trader. It's been designed to address the problems you most commonly face in running your business and to solve them. simply. No knowledge of accounting? If you can distinguish income and expenditure. you can run your book-keeping and accounts With Cash Trader Can't Type? Most Cash Trader operations involve usmg arrow» keys to select what you want to do from a menu of options typing

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reduced to an absolute minimum

Randomly accumulated piles of paperwork? Simply enter them as they accumulate Cash Trader puts an end to Dre-sorting into type and date order Not quite sure of the state of your business? As you

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enter each transaction. your Profit and Loss Account and Balance Sheet are instantly updated and are constantly displayed bang up to date on the upper part of the screen

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Bogged down by VAT? Cash Trader automatically extracts and accumulates VAT and reports on all VAT transactions,

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In addition to these features. Cash Trader also gives you total erXibiIity in creating your own anaIySis heads and With Analyser. a module which extracts information under any criteria you care to define. you can produce reports and analyses at the touch of a key. H M Customs and Excise recognizes the sunability of Cash Trader reports for VAT purposes and. as a recent rewew concluded. "Cash Trader WI|| be welcomed by accountants and auditors alike and should pay for itself Within a month"

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THE END OF THE

BOOK-KEEPING & VAT NIGHTMARE

To see Cash Trader in action is to appreciate its benefits instantly, so for a demonstration copy, fill in the form below and send it to Quest today. Of course, if / "

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Can‘t use a computer? A comprehensive manual containing key~by~key instruction and copious examples is only the first step. the Cash Trader program also contains a number ol training exercises which you must

debit my Access/Visa/American Express card

Please

Please send me CASH TRADER @ £1 14.95 inc. VAT D Please send me CASH TRADER with ANALYSER @ £14945 I?C. VAT [I Please send me an evaluation copy @ £17.20 inc. VATD Please send me further information D

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Delete those not applicable

It for any reason you find Cash Trader unsuitable for your purposes, send the evaluation cooy back within 14 days for a full refund. t

M'icrocomputer in use _

Evaluation copies are usable but a restriction on the number of entries exists: on payment of the balance (£97.75 for Cash Trader only, £132.25 for Cash Trader with Analyser) you will be given a password to remove the restriction and enable full use to be mad3 _

Name \ Add ress \ _

November 7985

Type O f B No. Of employees \ us'm?“ _\_ Quest International Computers Limited, School Lane, Chandlers Ford Hampshire 505 SW Tel- (04215 ) 6 6321 Telex. 47326 QUEST G ”as" ”a“ “Wes Questlnternational ,

2 A TAR/ USER

enclose a cheque for I

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Pavab'e to Computers Ltd.

METACOMCO PRESENTS ITS NEW RANGE OF SOFTWARE FOR THE ATARI ST: A SET OF POWERFUL PROGRAMMINGLANGUAGES FOR PEOPLE WHO WANT TO WRITE PROGRAMS FOR THE ST.

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A high specification macro assembler, complete with linker and screen editor. Assembler is a fundamentallanguage, useful for all kinds of programming particularlywhere speed and compactnessare important.Essential for all serious programmerswhowant -

to exploitthe ST’s full potential.

b MH/I

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A powerfulPascal compilerdesigned to meet the exacting ISO standard. This Pascal is already widely used on the Sinclair CL and the CommodoreAmiga. A fast, single pass compiler, generating native code. Complete with screen editorand an extensive user manual.

AVAILABLESOON:

The well knownLattice C compiler: a full Kernighan and Ritchie implementationwith isatrademark comprehenSivelibraries. Lattice

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Metacomco are leading suppliers of systems software for 68000 based microcomputers. As well as these titles forthe Atari ST, Metacomco have avery successful range of programming languagesforthe Sinclair QL, now widely used throughout the world. Metacomco was also chosen by Commodore to provide the operating system and a suite of languages for the new Amiga computer.

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I cr 0L, ”k This month's update on news from Britain’s electronic mail service.

‘

Turn your Atariinto apsvthothcrapm

ihe

ST in

amazing

Vol.

com":

pictures

Guy Fawkes: sparkling last action arcade game

Fifty games

’

‘

November 1985

No. 7

amazed at the graphics of capabilities the 5208T.

Graphics

Stand and

’

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ManagingEditor: Derek Meakin FeaturesEdierS: Cliff Mthnight "We 3'be ‘ Editorial Team: Alan McLachlan Kevin Edwards Pete Bibby Roland Waddilove Technical Editor: André Willey ProductionEditor: Peter Glover. LayoutDesig‘n: Heather Sheldrick Newsed'm” Mil“ c°W|°Y A dvertisement Manager: John Riding Advertising Sales: John Snowden Editor/n Chief: Peter Brameld

All the latest developments in the expanding world of Atari computing.

5’

‘

ST Software Latest update on software for the SZOST. There's lots of it already. .

Editorial: 061-456 8835 Administration: 061—456 8383 Advertising: 061—456 8500 Subscriptions: 061—4800173 Telecom Gold: 79:MAGOOl ”Telex: 265871 MONREF G Quoting Ref. 79:MAGOOl Prestel Mailbox: 614568383 ’

Published by: Database Publications Ltd, Europa House, 68 Chester Road, Hazel Grove, Stockport SK7 5NY.

Subscription rates for 12 issues, post free: £12

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£40

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Roland Waddilove

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all—rights basis. e 1985 Database Publications Ltd. No material may be reproduced in whole or in part without written permission. While every care is taken, the publishers cannot be held legally reSponsible for any errors in articles, listings or advertisements. “A tari User" is an independent publication and Atari Corp (UK) Ltd are not responsible for any of the articles in this issue or for any of the opinions expressed. News trade distribution: Europress Sales and Distribution Limited, 11 Brighton Road, Crawley, West Sussex RH10 6AF. Tel: 0293 27053.

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Your chance to win one of 50 copies and all you have to do of Chop Suey, IS read on. .

November 7985

‘

“Atari User" welcomes program listings and articles for publication. Material should be typed or computer-printed, and preferably double-spaced. Program listings should be accompanied by cassette tape or disc. Please enclose a stamped. self—addressed envelope, otherwise the return of material cannot be guaranteed. Contributions accepted for publication by Database Publications Ltd will be on an

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Contents

————————

Software

Microscope A at

Bob Chappell works his little fingers to the bone this month,assisted by David Andrews. Together they bring you this month's software reviews.

detailed look

and fl”

Display Rowe

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grips with .to in Part V of his

gets horizontal scrolling series.

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Mike Bibby concludes his series intricacies of binary numbers.

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Mailbag Five of ~.£/

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Order Form One Simple form on which you can order everything from adust covertoa .

monthly cassette.

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string?

Read Mike

Bibby's regular guide through the programming jungle and find out.

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pages your letters questions answered, praise graciously accepted.

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Brillig gives Level 9's new Red Moon their first Atari adventure with graphics.

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Teach your Atari to be a psycho— therapist and learn about file handling into the bargain.

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Page 60

November 7985 ATARI USER

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you

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Karate

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C.64,Amstrad and

game

know, like the Martial Arts, Perfection the CNN accepted Standard, SO play nothing until you play SYSTEM 3's INTERNATIONALKARATE

AS YOU

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annaskiAtaris

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SYSTEM 3 SOFTWARE. SOUTHBANK HOUSE, BLACK PRINCE ROAD. LONDON SE1 TEL:

01-735 8171. EX. 68

__— ./

STs prlce ays A t a r I

cut

ATARI UK has described reports ofcut—price5208Ts flooding into the country through the back door as “suspect to say the least". The company has gated several stories ning possible black machines and found be

investiconcer—

market them to

without foundation. "All the leads we have

followed up in this area have proved to be fruitless", says Max Bambridge, Atari UK's general manager. “Naturally because of the intense interest generated by the SZOST some people will have gone to considerable lengths to get their hands on them", he said. "But if there is such a market it is much more likely to be grey rather than black". However one major distributor still insists there is an

under—the—counter

involving hundreds of mach— ines. These are allegedly being offered for sale at discounts of more than £70. These claims come from Tony Deane, a director of Silica Shop, the Atari dis— tributor for Greater London south of the Thames, Sussex, Kent and Middlesex. “We believe that these machines are comingin via the back door from sources in the Far East and Holland”, he told be true because dealers m our WV.” area have bOUQh‘them-Th's's all making a mockery Of the Atari the distributionplan for ST WhICh effectively carved the company up into regions". Tony Deane added a warn— ing for both dealers and customers that they may well _

BENCHMARK test Of com— puter speed has proved conclusively that the 52OST can show a clean pair Of heels to the Apple Macintosh. Set Up by Antic,an American computer magazine, it saw the Atari flagship machine execute a program in 3-8 seconds WhiCh t00k the Mac from 7 T0 13 seconds. Using the most widely accepted standard in the computer industry, the procedure involved turning the micros loose to find all prime numbers between 3 and 13:681BY turning in a time Of 3-8 seconds, the 5208T revealed itself to be as fast as minicom— puters running on the Unix system.

Mirrorsoft

Spot the Ball Thorn EMI

Pole Position US Gold

Kissin’ Cousins English

@ @ W @ @

get their fingers burned if they do not buy from legitimate sources. "If a machine has not been purchased through normal channels the guarantee is not valid", he said. “So if it goes wrong there is no~comeback for the buyer. “Then they will realise that, even if they have bought it cheaply it certainly won't be good value for money".

Chop Suey English US Gold

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ATARI is poised to gain a foothold in the UK educational market with a discount scheme aimed at schools and colleges. The company has announced that it is offering 10 per cent offall8bit

hardware, peripherals and software. In addition it is aiming to win over the colleges computer

with 15 per cent off the ST machines and their associated peripherals and software.

arget is 20 million

The Mac A

operation

Compiled every month for Atari User by Blood Distribution Ltd. Terry

programs

Top selling

ATARI

has

targetted

potential worldwide

market

of up to 20 million customers for the ST range. This was revealed by the corporation's Chairman Jack Tramiel during a recent visit to London. Discussing

strategy

the

long

term

behind the global

marketing of the ST, he told Atari User: ”What We have OUt there are 20 million people Who

have already bought

bit

machines. “NOW these people are l00king T0 upgrade them.They want something that's faster and easier and at the right price. Well that is just what Atari is offering them". Jack Tramiel believes that his

team will set the pace because its members have a better understanding of what the end user really wants. “The majority of manufacturers do not understand the customer", he insists. “A|| of them believe that with advertis— ing they can reach the position that General Motors once held. That being they were able to persuade people that all they wanted out of life was a yellow car.

The outspoken

entrepreneur

is unflinching in his belief that it will be the informed computer user who will make Atari number one.

”When left Commodore knew that the only way to bring this business back alive was to continue my philosophy of the most giving the end user intelligent person in our society the best technology available at the time", says Jack Tramiel. "As far as am concerned he has had enough of 8 bit products, even with all the advertising that's been done. “The launch of the ST was the bestlhave been involvedin since the beginning. It proved to me once again that the end user knows best what he wants. I

—

“Well that

was okay until the

Japanese arrived and offered blue cars of better quality at a lower price. Suddenly nobody wanted the yellow cars any more.

"That‘s what

is now happen-

ing in the computer

industry",

November 1985 ATAR/USER

of approval’

‘seal

Atar' THE creme de la creme of Atari XL and XE software is now instantly recognisable, says Atari, having just initiated its own software "awards”. It is giving Atari Approved Software labels to what it believes are the best titles available in five categories small businesses, education, recreation, utility and creativity, They are to be presented on a regular basis. Software houses and dis— tributors have already been invited to submit titles for evaluation by Atari and an outside examiner. Criteria for approval include quality, value for money and suitability to the machine. A licence fee is not being charged for the labels. _

Atari has already decided on its first winners and one company which has fared

Also included were Rescue from Fractulus and Ballbiazer from Activision, Zorro and Ken— nedy Approach from US Gold, Microbase+ from Silicon and »P—Forth from Bignose Software. Atari have been commended on the approval-scheme by Mike Rowlands—Jones of Software Express. “It is not only a good

extremely well in the listings is

distributor Software Express. The distributor’s approved titles are Earthviews, The

Paperclip,

tory,

ware

Fac—

Syncalc,

B—Graph, Actionl. Basic XE, Bank Street Music Writer, Print Shop, Hitch Hiker's Guide,

incentive

for the software

houses, but a great help to customers", he said. “Customers usually have several titles of a similar nature to choose from. If they see a label of approval from the machine’s manufacturer they at

Kennedy Approach and Space Base, a number of'which are American imports. Ariolasoft was next in line with Seven Cities of Gold, 8 130XE version of Paperclip and B—Graph.

least knOW it must have something going fOT W3 "In the charts approval is given to a title because it is in the top ten that week. In three months it could be gone. believe the titles which should be rewarded and there are some out there are the classics". The approval scheme has alreadytaken offin America and is working well, said Rowland— Jones. “And it will work here as long as it is not a five minute publicity gimmick. It needs publicising and for all software houses to become involved”. I

—

_ "

‘

Computer

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fmsmw «were

begun its work of linking various

denominations and promoting the use of micros in church activities. Association secretary Philip Clark toldAtari User: ”There is a

,.;:':‘"

activities". The aim 0f CMUA is

concentrate on the DODUIar computers like the Atari and it has already unearthed a significant number of programs based on Bible studies. The Association intends to produce a quarterly magazine called Christian Micro and, from next launch a of January, series for magazrnes specrfic tape micros.

Its other

activities

include the formation

will

of local

groups. 8 ATAR/ USER

November 7985

”W“

A VIDEO digitiser for the Atari 800, SOOXL and 130XE has been produced

Called Computereyes, it has been adapted for the British and European PAL video standard from the original NTSC model

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contact with the individuals and companies producing ‘Christian software'. "We also need to share the expertise and ideas of the many who have sought to use micros in their church—related

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THE rece ntIy—form ed Christian Micro Users Association has

lluleo d.l?l1.IS!"

DOUble Challen e on the ST

TALENT Computer Systems is providing users of the SZOST with a double challenge in its latest release. The single 3.5in discincludes two fast paced adventures West and The Lost Kingdom of Zkul. West acts as an introduction to the more demanding dun— geons and dragons scenario of Zkul. The aim is to track down a notorious gang of bank robbers who have gone to ground in an abandoned mine in Indian —

territory. There is gold to be collected, clues to be solved, and Indians, rattlesnakes and robbers'

tured by Digital Vision in the USA. Computereyes will digitise from any standard video source including video recorder and video disc. ‘

bullets to dodge in more than 130 locations. Zkul is a classic and complex adventure with in excess of 200 locations and a huge vocabu— lary.

Users

Images

are

placed

the hi-res graphics

area

savedtodisc if desired. Special high contrast and grey-scale capture routines are included. The system costs £139. and can be

find the last

must

refuge of the dwarves, the Domed City, and the precious secret of the old civilisation. It is a real time adventure with tasks to complete, puzzles to solve and mazes to negotiate. The two-in—one disc costs

£24.95. ~

Pascal for ST FORTRAN 77 and Pascal are to be developed

forthe Atari STby

Prospero Software, which

hopes to have the two language programs available at the end of this year.

PROTEUS

Gem Is

SECRET software product with the code name Proteus is

London headquarters of Softek. It is an intregrated suite of programs which has been de— signed, says the company, to sit on top of GEM. "There has been nothing like it seen on the market before", says Tim Langdell of Softek. “We are convinced it will rival both Jazz and Symphony in its imDaCt-“

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A MAJOR row between the Apple Corporation and Digital Research has been settled in such a way that Atari may emerge as the eventual winner. Digital Research has agreed to pay Apple an undisclosed sum and amend its Gem programs to avoid any possible infringement of copyright. It is these programs that are being offered with the new ST

One result

of the

com-

promise settlement is that new versions of Gem are to be produced, "designed to be substantially different to Apple's Macintosh personal computer in both screen appearance and

operation". DUTCH children have begun to learn about computing, and the Atari 800XL is the machine chosen by the education authorities to do for Holland what the BBC Micro did for Britain. A series of radio and television programs featuring the 800XL is being broadcast to Dutch elementary schools. Its aim is to introduce youngsters to information tech— nology and smooth the process of learning to use micros. The project is being super— vised by the Dutch school radio foundation SNS, a combination of the school radio services of

00 L ?mirmf'?fff " h

s C H

100,000 800XLs in Holland. Pupilswilllearnthe historyof

?ies

communication,

i of iklL Ltttttpppld A V

AVRO and VARA, founded

1951. Other participants involved, apart from SNS and Atari, are the department of education at Amsterdam UniversityandWol— ters Software. Atari Benelux sales and marketing manager Wilfred de Graaf says the project could lead to sales of more than

how to use the

800XL, solving problems computer, programming

and

other skills. The SNS is encouraging pupils and teachers to develop their own software to add tothe library of programs broadcast on the schools radio network for downloading on to cassette. Two 15 minute television programs featuring the 800XL will be broadcast each week in the afternoon so that they can be watched during school lessons.

__——__—_—____—.

aw BIG chief Jack Tramiel has to the aid of the Mohawk Indians in Canada, the country where he had some of his earliest business successes. The Atari bOSS presented the first of 10 5208Ts to band councillor Murray Maracle at the 1985 Computer Fair in Toronto. The machines will be used for training at the First Nations

S a B .

Technical Institute, but their donation is of much greater value than that to the Indians. For Atari has commissioned the Mohawks' educational arm to develop a syllabic fount for

in developing

software

the many North American indie” languages. The syllabic fount will be based on an alphabet of '

pictogram-like marks, or picture symbols, developed to repre— sent words and phrases in the Indian tongues. When the development work is done the Mohawks will become value added re—sellers for Atari, marketing the SZOST to native groups all over the .

North American contlnent. The idea Of developing a syllabic fount for use With the 5205T was discussed during

come

use

ar I '

meetings

between

the

Mohawks and Atari Canada. “Being 90°d Canadians, and thelndians have been here long before us,wethoughtwhydon't we try to do something for them”, says Atari Canada gen— eral manager Ian Kennedy. "Then we spoke to Jack Tramiel about it and he thought

was

great

idea

and

sanctioned the donation of the 10 machines for training and software development".

This is viewed by the industry a move by Apple to counteract Gem providing the ST with a Macintosh type environment. For this had already earned the Atari machine—some half the price Of the \Mac its nickname of the Jackintosh. as

—

However Max Bambridge, Atari UK's boss, seemed unper— turbed by the news when it was broken to him by Atari User. “As this involves an agree— ment With Which we are not directly involved, it is really nothing to do with us", he said. “But it would seem safe to say that if the Gem packages available for the ST have to be changed they will naturally be '

”And this may well mean that the ST will be able to score even more

heavilyagainsttheMacin—

tosh".

Meanwhile Apple has dis— closed that it has pressurised Digital Research to take immediate action in the modification of three specific proGem Desktop, Gem grams Paint and Gem Draw. However until the new ver— sions ofthese become available, the current ones available for the ST will still be marketed. Digital Research has given the assurancethatallitspresent range of programs for the ST will operate in any future Gem environment. _

Nbvember 7985 ATAR/ USER

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prime target for

distance is saved

telecomputi'ng Rural Dean, thebaptism is 'his RevAndrew Haig,whohasaCommodore 64 but hasn’t yet got modem.

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THE 5205T sitting in the Atari User Of?ce has obviously been the centre of attention recently. few However, it was almost the scene of tears a the for discs demonstration three days ago when America. from arrived 5205T Tears of elation, then? Not so for the package had been damaged in the post. Fortunately, the of story has a happy ending. Despite the ramblings Francisco in San Mail Processing of the Director cause on how “insecurely enveloped" mail could had discs three the their machinery to jam, survived intact. The collective editorial sigh of relief was heard several offices away. The monochrome pictures in the “slide show" demos were pretty impressive, but when we monitor kindly rushed to us colour a hooked up in amazement, gaped everybody Silica Shop by The quality is so good that we've reprinted them here. If you think they look good, you should see them in real life.

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er The Computer that 5 been glvmg you such a ?ne time Wlt compu run to real you some Helping money. games is now ready to earn you chance to earn £6 or more your own business or giving your wrfe the an hour for word processing/secretarial work. All because of the brilliant new word processmg package, Wordstar the world s SuperScript from MicroPro the makers of best selling word processing packages for microcomputers.

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Versatile SuperScript

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Each command is a single wor an or each comman cursor. You don't even have to type the command. ,

With SuperScript Word Processmg Software 15 availabledirect complete Comprehenswe User Manual. Only £79.95 including VAT and Postage. OR FROM ALL GOOD DEALERS .

gives you all the editing options of

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overtype or text insertion modes; search and replace with pattern matching and optional case discrimination; backward search, case shifts for single words or larger blocks of text. And much more.

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Personalised mailings are easy with SuperScript. You can enter the data manually or use data extracted from your spreadsheet or database. Merging can be selective. A mailing labels template is included to help you complete your mailing and you can alter the template to suit your own label format.

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experienced

Attention Easy Script users! If you‘re already an Easy Script user. then SuperScript is the obvious next step. With its enhanced features and more powerful facilities, you'll be able to do so much more. There are no compatibility problems either. You can run your Easy Script data or Easy Spell dictionary disks under SuperScript. And by returning your Easy Script disk can obtain an upgrade for £49.95. .

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PRocE SSI N G

user SuperScript also gives you Powerful tor the the ability to cut work down to a minimum by storing your own command sequences or text on single keys. This means that with a single keystroke you can reproduce commonly used phrases or multi-Iine addresses from a glossary, load in document formats or execute a preAprogrammed sequence of operations.

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OR ORDERDlRECTBY

PHONING

enclose remittance for

(Cheques

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0483 503 .I 2 ]

QUOTINGYOUR CREDIT CARD NUMBER OR BY COMPLETINGAND RETURNINGTHE ORDER FORMWITH YOUR CREDITCARD DETAILS

The build-in spelling checker goes right through your text, checking for errors. You have the option to correct any error, ignore it, or add the word to its 30,000 word dictionary.

ASK YOUR LOCAL DEALER FOR THE SUPERSCR|PTPACKAGE

Good wIth spelling, too

0 RD E R BY P H o N E

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Good with numbers Superscript allows you to extend your editing line up to 250 columns for wide documents like ?nancial statements, and with decimal tabs it's easy to enter properly justi?ed tables of numbers. or SuperScript's complete set of calculator functions can be used interactively from the you can operate on numbers from the text of your document. Apart and divide, usual mathematical functions like add, subtract, multiply, percentages, you have the ability to add rows, columns or even whole tables.

options SuperScript

AVAl L ABLE FOR

Simple for the beginner If you are a newcomer to word processing, mm“ move m e d

Edi?l‘l

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writes letters, inv01ces, reports, tables, documents, it stores, edits and even checks spelling.

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You

I November 7985 ATARI USER

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Tired Of typing? Take advantage ofour finger-saving offer on Page 61-

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FOR A I ARI

520 ST

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PRICES ST PACK INCLUDES:

520 ST Meg. Floppy Drive HI_Res BAN Monitor Plus software listed below

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SILICON CHIP LTD, Showroom address: 302 High Street, Slough, Berkshire. Tel: 0753 70639 *

Atari Business Centre. lst Dealer for 730 XE. * lst Dealer for 7029 Printers. * lst Dealer with our own Software House for Software Support. * lst Dealer for 520 ST Please phone or write for full details. 7

(DealerEnquiries Welcome) November 7985 ATARI USER

prizes 'n 0 great free competition “? rmD a 52

THIS month we’re giving away 50 copies of Chop Suey, the great new Kung-Fu game, courtesy of English Software. All you have to do is study‘the word square below and find as names of Far Eastern many countries as you can. Then send the coupon back to us with the names neatly circled. We also want you to tell us how many you discovered we’re not telling you how many there are, but it's in double

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WI”

Of 50 COPIES Of Chap Suey, the IateSt, greatGSt tGSt Of Skill In the art of K ung-Fu one

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IIIIII-IIII-IIII-IIIIIIIIl-IIllI-III-lIl-IIIIII-II 22 ATAR/ USER

November 1985

‘

—————-——__

Graphics

;

SO far in this series we've looked at Modes 0 to 8. If you have one

of the older Atari 4003 or 8003 that's as far as you can go. This month’s article assumes that your machine has a particular chip which some early models lacked. The chip in question is referred to as GTIA, or Graphics Television Interface Adaptor,and its predecessor was referred to as CTIA. Unless you've had your machine since 1981, the chances are that it contains the GTIA. If you have got an old machine and don't know which chip it contains, try

' 0" CA" GE 1

—

entering Program I, a simple routine which cycles through colours and Iuminances. |f you do have the GTIA the whole of your television screen will cycle throu h the colours because the

bordegrJand background are indis— tinguishable. However if your machine contains the earlier CTIA the border will be a different colour from the background and so M” be V's'ble‘ Break or Reset

Press

to stop the

program.

that you re SU“ With Assumlng then, I" take a I°°k at modes ,

,9'

me 10

and 11‘ You can access these in the same way as the other modes we ve

considered, using the Graphics

com—

mand. to get an empty Mode Press Reset Oscreen With the Ready prompt at the top. NOW type:

and

press is

been executed the

system reverts to Mode 0.

Ifyou want

Mode 9 you've QOt to keep It there somehow. In fact we saw the method used tO see

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system into a never-ending loop. With a program you can simply use a line which GOTOs to itself. For

a display list interrupt and/or redefine the character set. If you've been following Mike Rowe's series in Atari User you'll know what to do, but for now HI

‘

that these modes don't have text any capabilities. You can produce a Mode 9 screen with a separate window at the bottom very easily. Simply tYDe GRAPHICS 8 and then POKE 523,54- HOWGVGF if YOU try this VOU'“ soon see Why used the phrase ”useful text window" earlier. In Mode 9 you can only use one colour, but you can have up to 16 Iuminances Of that C°|0UT 0” the screen. Mode 11 is the opposite, with 16 available colours but only one

assume

example:

10 GRAPHICS 9 20 GOTO 20 In immediate the can use

to use

last month to keep a full—screen Mode 8. All that's involved is putting the

execution FOR ‘

mode '

you

endless

loop. For example, type:

Return. The brief flash Mode 9, but once the

has

Part seven Of DA VE RUSSELL series an Atari graphics modes

construction to create

GRAPHICS 9 you’ll see command

—

FOR A=1 T0 2 STEPO: GRAPHICS 9:NEXTA and press Return.The fact that we've used a step size of 0 means that A never reaches its upper limit so the loop goes on forever. The blank screen which confronts you is Mode 9. Unfortunately there's not much you can do with it in this state. The machine is locked in the loop and so most of the keys produce no response. You can Break out of it, though,or Reset the machine. Modes 9, 10 and 11 all have the same resolution of 192 rows x 80 columns with no possibility ofa useful text window unless you're prepared

‘

luminance.

Mode 10 is a bit different in that it allows one background and eight foreground colours. However usnng C°|0U’5 from Basu: IS “Qt as these s1mple as for the other two modes, so we'll leave Mode 10 until the end. In Modes 9 and 11 we use a combination of SETCOLOR and COLOR commands. Only colour register 4 is used, so in Mode 9 the

—____' November 7985 ATARI USER

colour

selected with:

1. Wales a mug; so serene.“ 40 m 3:0

SETCOLOR 4,co|our,0 _

11 the luminance Wh?e '” Mode seleCted With: .

so )

SETCOLOR 4,0,Iuminance

need

as“ ' 7

200 core 20

Program ll

should see the same starburst pattern but in a multi-coloured single— luminance form rather than the single—coloured multi—luminance Mode 9 version. You might think that having only one,colour available, as in Mode 9, is. a severe limitation on what you can display. However the fact that you can have 16 luminances means that you can produce some stunning 3D graphics. Rather than tax my brain to produce an example ofsuchadisplay,

pattern which cycles through the colours and luminances. When you've had enough of that

Break out and list the program. To convert it to Mode 11 we need to

change lines 10 and 30_ Alterline 10 to read: 10 GRAPHICS 11:C=0 and alter line 30 to read: 30 SETCOLOR 4,0,C _

you fancyadifferent colouryou'll to alter line 10. As usual, a well—placed loop will cause the program to cycle through all the colours. To see the sort colourful effect of that Mode 11 can QIVe: enter and run Program IV. Its squashed appearance illustrates the pixel shape In these modes. With more rows than columns, pixels are long and thin. Mode 10 allows nine independent colours, each with its own luminance, but there aren’t nine colour registers, are there? Certainly the SETCOLOR command can only be used to access registers O to 4. This is the problem with colour selection in Mode 10. Some of the registers can be accessed via SETCOLOR but the others must have the appropriate value POKEd in. Rather than try to mix the two

to 15

332“;

n ma ” mu

starburst

Program III does thejob admirably. It was sent in to the Atari User offices by Dean Rossiter, of Wellingborough.

mmanmmnuzmtmmun

In Mode 9 the COLOR commandis used to select one of the 16 levels of luminance, while in Mode 11 the same command is used to select one of the 16 “hours. To see the difference between the two modes type in Program H and run it. This produces a simple Mode 9

”a. cus “i. 4,c,.

you now run the program you

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Maybe you’ve just acquired your ATARI” 8OOXL/13OXE or you're tired of usmg it /ust to play games! You want to start programmingand eventuallybecome an

P., etc.

expert— here’s how. 1

‘

Dll(/l{0bl?(,l{l?

sqomm

InteractiveEducationalSoftware package to teach you all you need to know about Computer Numbers BITS, BYTES, BINARY, HEXADECIMAL and BINARY MATHS, it’s all here. A MUST forthe newcomer to computing.

: An

FREE: Memory map wall chart with a” orders over £10.00!

—

: I

Name

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|Mltlwslstllla

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manipulate COLOUR and SOUND easily and effectively Learn the programmer’s“Tricks ofthe Trade”from novice to advanced level. Essential informationfor would be ATARI experts!

: How to

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Time as wbetter way to [cam about your ”MP, 00mm,-

Shamrock Quay, William Street, Northam, Southampton so1 1QL. Please allow 14 days for delivery.

5322?le Software 24 ATARI USER

November 7985

from

SET

Software

for

Education and Training

ATARI is a trademark of ATARI CORPORATION

’

—————————

Graphics;

—

I /\\

I ‘

/\?5§§ \ Il§e\‘“f\\

i‘

\ @®)

){/

\\‘

\ ‘2

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ii"

?ax k“ /,k\\\§\\\‘\\\\ ‘\‘\“ K?) =\§§§§;\A@2V/: / W' wA //// Ti,"

M -"'

iii/l, ”it i

\\‘\\7\

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and we can use

li‘

“circle" of colour,

of this to produce an effect movement. If your eyes aren't feeling too tired, try entering Program V. to Wit[Fines ran C110 om va1?0loadéhehregidsters ues an t en raw bands of these colours across the screen. Each band is five rows deep. 130 to 190 then shuffle the Lines registers around constantly, producing the movement effect.

Ali

/,\\

1.1],

\.'

"“Q

to produce some interesting effects. Suppose, for example, that we load the registers with particular values. We can then move the values ”along" one register and move the last value back to the beginning. This will have the effect of creating

Since the colour mgthOds'

Mode

recommend

that when

always POKE the usmg COIOU' registers. Of the two methods 10 you

this

is the only one which can be used on all the registers, and so is simpler. To be we don’t actually

accurate,

poke the registers

themselves. poke their "shadows" in

Rather, we RAM. However this is a detail which we need hOt take any further here. The locations WhiCh contain the colour information are 704 to 712. These locations correspond to the commands COLOR 0 to COLOR 8

respectively. The value which is poked into the register needs to contain hOt only the 5 mim 5

DEERE?

“E" m

518!

Lazamgalz?zx?z‘

‘

2! Limammsswzuwxzcnii?u 30 GOSIIB 10.03!“ Mani! 1m a L?zlxzmsswzn=PR=67=PY=50 u enses “mum Mean: 2m so szugnxzszwzuwmumn 70 cm “amen mu 3m

1: izllfzéz’W" l

mytitng‘mzti’uxmu

1012

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Program ///

ozmr

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3° FOR A

Program IV

colour informtion but also the luminance information You arrive at the value b y usin g theiformula' X = (Colour ' 16) + Luminance where X is the value which gets poked into the register. '

background colour by poking location 704_ Using the ?ght purple co|0ur that we've just calculated as 88, try entering the following: FOR |=1 TO 2 STEP°:GR'1° =P°KE 7041881NEXT Once again we've used the STEP 0 trick to set up a perpetual loop so that the Mode 10 screen is constantly displayed. If all has gone according to plan, your screen should be filled with combination 88, or colour/luminance "9m purp|e' We can use the fact that the registers are all in adjacent locations |

1:1:

0.6

0 0°”"0'S the ahd this comCO|0Ufi baCKQFOUhd mand corresponds to the register in location 704, we can change the

am _

’.

amzmo

‘

Since COLOR

”

mums

ilk—011260

0 7° 8

Because these modes require the GTlA chip, you'llsometimes see them referred to as the GTlA modes. This Chip's jOb is to interpret the data passed to it by the Antic chip, and in fact Modes 9, 10 and 11 are

three different interpretations of Mode 8. Consequently they require the same amount of memory 8k. 0 Next month we'// finish off this series with a look at Modes 72 to 75 which are available to XL and XE owners from BaS/c. —

‘

I...

m”

are

t808be

so Pm

77,0359“) so m at“ m “ail! mti“ 1001 mum! 7:2 to 1am“ I 1“: PM“ ”1.71“. “,Y 1m vzvu?lsn t we run 1:14 To 2 STEP dammit 1005 PL“ ”mama rim 1.“ twat“ T 1007 Ysz? rzz to income 1

To 40 70 PL" 00 if!"

(

For example, suppose you want to specify Colour 5 with Luminance 8, a sort of light purple colour. The value * poked would be (5 16) + 8 :

“l“

‘9

1. mos. 11 2. “Lanna 30 F0: to to 13 u wanna so mg. m 6. IF m“ Bit m“

values

selected randoml ,the dis la will be different each rime yoii ryun the program. Use Break to give your eyes a rest every now and then. If you want to choose a random background colour too, change line 30 to read:

u can 1. mums u 30 in 4:1 to 3 40 "Kt mm,nnmmms: SI Ex! 0 5. FOR 73. W 180 STE? 5 n czcuzlr cu mill 3:1 3! mm 0 N Fm 2:0 to 4 m Put wanna“ 79,v+z 11. next 1 129 "a“ V 13. Minus:

1‘s:

x?tzzzm? '

m 1”

P“

Program

:12,A

mutt 6°" 13!

to 2.2.5“

“L“

November 1985 ATARI USER

at Mo

‘wfw"

~:“-"r'

3g.

might

expect

game called

The Great American

Cross—

Road Race to be all

Country

about marathon running shades of Flanagan's Run, —

Loneliness of the Long Dis— tance_Runner, and all that. A gruelling race game this certainly is, but not on foot. A powerful racing car is your

"33

~ ?ts

452?

374»: a

3&1”

age;-

«Egg ”a:

35,4.“ "at

’-

£3;

-*”‘”§"J&f; i;a? $951}; {g w “if“ésgf; z“V“ 1’ 3;

‘E‘X'?i‘

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A"‘

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IT was a wet night when I arrived at the mansion. As I e n te re d, m y re p o rte r' s instincts made me wonder whether l might be a little too conspicuous. I needn't have worried.

Over by the

fireplace

six—foot rabbit

man-sized

cavorted witha

peanut butter

sandwich. Three mice in dark glasses brushed past Pacman. An astronaut strolled up to the bar. Near the entrance a gorilla was doing a splendid job of looking afterthe guest's coats.

queen of the fairies, was chatting up a sheik. She was going on about one of her horses, name of Lurking Grue. A vampire seemed to be

discussing everything from politics to local scandals while the more athletic took to

enjoying himself hugely.

the dance floor.

Titania,

26 ATARI USER

November 7985

Other assorted weirdos

were

com-

;=.=1“-—4‘.——""“'~. "\

~‘

1“

4. 5.4}

against other drivers

of Veronica

, \

—

‘

f".

(3377? 6:“

timer

358 V} “Isl/j; (é‘:1}? mp?b$,}f;..,1_g.

p arison ' the cowboy looked the very model of sobriety and good taste. The man in the outlandish cowboy outfit was me. I wasn't havingabad dream the nightmare would come later. No, I was attending one

;:/~,~l;_:y/,.,\_,,

?'f

.-——-——-—4'—$4.

past everything on four wheels. To begin with, you can try to compete against any one of nine fields of already established times. Each field consists of the best results of 10 drivers. Then there are four west to

A“,

’

race

mine} s». 45W 2‘

“0

across America. But there's more to it than just welting

”472:

ef?g?i??if,"

=--.. ,

».

if its

‘

f“

we ‘

mode of transportRoad Race (well, I'm not typing that title out again) is Activision's latest and follows in the best traditions of Pole Position and Pit Stop. My thanks to Software Express of Birmingham for speedily arranging to let me have a review copy as soon as it became available here. At bottom, the game is a

simulations, you

athletics

“a,

grue mg C h a II enge

-WITH the current trend toward

55:7?52-1‘155?

Ashworth's

famous hallowe'en parties. Actually I was mixing business with pleasure. Pleas— ure because I had been invited as a friend of the hostess. Business because my editor thought there might be a good story in it. The fairy queen, none other than mine hostess Veronica, had clearly been knocking back the Buck's Fizz from quite early on. Her words were slurred and she was none too steady on her fairy pins. Emphasising a point to the sheik, she waved her glass on high and succeeded in slop-

east coast crosscountl’Y races to choose from: Los An99|_es u? Seattle to New York, IVllaml. San Francusco to Washington, latterlsa and the US Tour. The toughie snnce itrequ1res you to drive through every CITY 0" the map. The map [Jobs UP once selected your race. And yqu'ye is much, much more than this abut ofgloss—carefulplanning

ping alcohol and ice cubes all down her tinseled dress. Usmg a would make an word_that elf’s halr curl, she staggered off to clean up. A little later, I saw Veronica again. She was slumped on .

the

floor

of her office

elsewherein the mansion. She was less than dead drunk—she was dead, period. And if that wasn't enough to dampen my party spirits, my cowboy's Iariat, which I could have sworn I hung up in the closet with my damp coat, was wrapped tightly round her pretty little neck. Just to putthe cherryonthe cake, a bullet lay by the body. Guess whose gunbelt had one empty cartridge loop? I could almost hear the click of the jail cell door. So there I was, plunged deep into Suspect, a superb new text adventure from .

I”.

and selection at this stage should help you achieve good times. Equally, slapdash selection may well be regretted before you even reach your first checkpoint. A flashing circle on the map denotes your point of departure, while a pulsating arrow indicates a possible next stop on your route. By joystick movement, the arrow can be positioned to another desti— nation city. Only those cities cgnnected by a major road to your departure point are avail— able for selection. A scrolling bulletin across the top of the screen tells you the conditions on the road you have chosen. You have to be careful ~ things like lane closures, the dreaded road— works or oil slicks could cause you to lose valuable time. The weather conditions are no less critical in your route selection. Just like our good old Met Of?ce maps, this one has plenty of those cute little symbols. Snowflakes and rainclouds indicate just that .

while

clouds without

rain

indicate fog. It all seems more like Britain than the US of A! A clock indicates your time of departure. It can be set to any time you like. But watch it you could end up driving at night or arriving at a city in the middle of the rush hour. Now the race is on. The screen changes to reveal a Pole Position type scene: blue sky, green sward, a city skyline and your car sitting on a central road which tapers into the distance, At the foot of the screen, reading from left to right, is a fuel gauge, 3 rev counter,

pays to burn rubber. The mileometer also counts down, telling you how much further to your target city. The radar warning lights up when 6 police speed trap lies ahead you'll know anyway because sirens start blaring. You have two choiceswhen slow down or hitting a trap try to outrun the white police car. If you're caught, you stop

timer, mileometer, speed-

showing how much time

remains for you to complete this leg of the journey. Failure to reach your destination before the timer reaches zero disqualifies you from the race, and that means you'll have to start all over again. If you beat the clock the spare time is added to the time allowedforthe nextstage,so it

of and, coupled with the appropriate engine noises, adds much to the motor racing atmosphere of the game. There are four gears. Shift too soon and the car will respond sluggishly.'Shift too late and you could blow your engine and have to push the car to the next service station. Pushing is accomplished by tapping doggedly away at the fire button. You'll also have to push if you run out of petrol. Warning messages are given when you are approaching a service station. The station is shown as a pink petrol pump and you must pull up beside it. Your car will be automatically refilled and/ or repaired. lt's all too easy to overshoot, or stop by mistake at a cactus, when you’ve been haring along at 150mph. if you're not driving very fast, other drivers— and there are lots of them go flashing past but never hit you from behind. The same cannot be said for you.

—

ometer and radar trap warning. The timer counts down,

gears down. All very easy to get the hang

—

dead, the police

car

pulls

alongside, a sardonic message is displayed. like 'Where's the fire?" and you're stuck there for several precious seconds. At least you don't get hooked! Left and right movement of the car is controlled by similar movements Of the lOYSthk. The fire button is used to accelerate, and pulling back on theioystick applies the brakes. Gear changing is neatly handled. When the rev counter reaches the 9 o'clock position and by then the engine is the fire beginning to scream button is released and a quick

—

forward tap of the joystick causes

change up- Similarly,

—

aquick backward tapshiftsthe

you hit a car while overtaking your car instantly If

switches to bottom gear and slides over to the side of the track. Luckily, it hasn’t stalled. Arrive at the city within the time limit and you'll be greeted with a jolly tune and a welcome Sign. Then it's back to the map To seleCt the route for your next leg. Run OUi Of time and YOU” be tOld “SOWW and be OUt Of the race. The sound effects certainly add to the air of excitement and joystick response is per-

‘

lnfocom. Suspect is one of their best and follows in the footsteps of Deadline and Witness, their earlier detective adventures. Deadline called you in to

investigate

suspicious

suicide, while Witness placed you as an eye witness to a dastardly crime. In Suspect you find yourself far more embroiled in murder most foul than ever before—all the evidence points to you as the prime suspect. Unless you can find out who really dunnit and pronto, your reporting days are over. The case is stacked against

you from the outset. There's the rope for starters. Then there's the bullet and gunbelt. You're also an outsider. Yes, it'saset—up all rightbut since you know you’re not a kiIIer, it follows that the real murderer must be among the

motley collection of

upper—

crust characters present at the

party. The police are soon on the scene,among them Sgt. Duffy, of Deadline fame. What you must do is to build up a case by exploring the mansion and grounds, watching and talking to the various characters, and analysing and deducing. Only by gathering enough irrefutable proof and presenting it to the police can you establish your innocence and another's guilt. You can't make a citizen's arrest you have to convince the detective to do that. You can accuse people though, but much good will it do you if you go around making wild allegations. You have but a few hours (game time) to solve the mystery. Failure to do so will result in your being arrested —

and found guilty of second degree murder. Suspect is graded as an advanced adventure, so it's likely you'll be arrested and

convicted many times

over

many weeks. Never mind, the preceding stimulation and entertainment more than com—

pensates for being falsely imprisoned. All the lnfocom hallmarks -are here, massive vocabulary, sophisticated input parser, dazzling and detailed prose,

fect. l

in skylines,

twists and turns, good humour, plenty of original puzzles and multiple solutions. No doubt about it, this is yet another excellent adventure from lnfocom how do they keep it up?|accuselnfocomof brilliant. being maddeningly —

Prove their guilt beyond

shadow ofa doubt yourself by buying SuSpect. l rest my case.

Bob Chappell

The graphics are first rate—— especially liked the Changes

darkening

the gradually‘ Scene

night

descends and the anOOth high Speed scrolling. Add these qualities to the planning elements, the combi— nations of possible routes and the variety of the challenge, and you have a very good race game indeed. This, is one I recom— would unhesitatingly mend to any race game fan. .

Bob Chappell November 7985 ATARI USER

SUPERB tALUE

60/510

absorbingtext adventures ZKUL and WEST. These games are already best-sellers on the Sinclair QL. The special pack combines both adventures on a single 3’/:" disk. Full instructions plus a helpful Bluepnnt for Adventurers are included. WEST iS a fast-paced action adventure WhiCh acts as an introduction to the more demanding 'dunge0ns and dragons' scenario Of the classic adventure,ZKUL. A demandingand exciting text TWO

over 200 words and as many phrases. There are over 130 locations to search — not all ofthem easy to ?nd. Events happen in real-time outside your control — Indians charge, rattle-snakes slither past and robbers appear and shoot at you. How long can

°$t

adventure,using

i‘ I;

KINGDOM or zxur. ‘the quality of the game is superb the others have to beat'

(Add 50p postage & packing in U.K. £100 for overseaS)

WEST will please anyone who ever frowned intoa puzzle of any sort' 0L User

i 2409 5

wesr

you survive?

6°" of

LOST

You are on the track of a notonous gang of bank robbers who have gone no

town deepin Indian territory. Your 125k to outwrt and outgun the robbers, collect as mUCh loot 35 DOSSIDIe and piece together clues on how to escape. and ST are the Registered

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deep m the pond take you there with Savage Pond, their "11”me can

ation of wild life under water. Quiet it may be, peaceful it certainly isn't. In this fast arcade game you start by playing the role of a tadpole struggling to survive to adult— hood. Just like the inhabitants of any country pond, you have to

avoid the perils of other insects and animals striving to live in there with you. Survival of the fittest would appear to be an apt rule in this scenario.

Using the keyboard

worm

count reaches five a beetle larva appears and if you can polish this offyou take another step along the long path of evolution. In stage one a multi—

coloured dragonfly buzzes about above the pond dropping its eggs into the water. It is vital that you eat these as

they

settle into the cover of deadly hydra and become irretriev— able. When they hatch at the bottom of the pond a larva dashes off the screen only to return as a deadly dragonfly

nymph whose staple diet .

“

3 .

him out by outsw4m— you tire mung him over the screen. In stage two bulldozer a comes adding .

along, another radloactlve hazardasnt dumps waste into the pond. If you can survnve all this and manage to become a frog, with a flick of your long sticky _

can

tongue. you

catch

pestering dragonfly buzzes overhead.

thanks

for you.

that

There

it3

got this far you have had all your eggs and tadpoles destroyed, the com— If

havnng

puter dating agency comes action and provudes you into With a lady frog. Aftera lovmgembrace you provrde a specnmen of frog spawn and departfor pastures new.

The spawn comes to rest at the bottom of.the pool before hatching to give you another to start all over again. chance As the pro— it progresses gram introduces many more wonders of such as the deep blood worm, jelly ?sh, spiders, water fleas and bumble bees.

They all have their role to play in this real life adventure. Overall the game is fun to play and has very good graphics. The sound is effec— rive and compjemems the game very well. The instructions are Clear and concise and give a good insight not only to the game, but to the species that you~will meet and their descriptions. The 16k cassette costs £7.95 a bargain in my opinion,

‘l

—

David Andrews

digesting amoeba. Now and again a fat juicy worm falls into the water and eating this increases your worm count by one.

they sink, otherwise

joystick you must guide your .. immaturity, fattening it as you guide it round the pond

Every time your

s‘f‘asr~

WHY not take a break from those shoot—em—up arcade games and take a visit to a quiet country pond? Starcade

is.

243.1754"

yes, tadpoles.

He relentlessly chases you until he either catches you or

A touch of the Bruce Lees SIT down at your Atari, hold your joystick at an aggressive angle, screw up your face, let rip a bloodcurdling go to it.

shout and

Well, even if you're not acting this strangely at the start of playing English Software's

Chop Suey,

guarantee you willbeafterjust a few minutes. This martial arts simulation really gets to you. if you thought you werejust a gentle pacifist at heart, better think again after you’ve tried this game. You might discover a latent Bruce Lee has been lurking undetected under your skin. The action takes place, not

the

fresh

air

gymnasium, but appears to be

in what

theatre.

lnfactit'sverysimilartothe traditional setting used for the weightlifting events at the Olympic Games. In the lower

portion of the screen, looking up at an enclosed stage, are three rows of spectators who fidget around from time to time to let you know they’re Wide awake. On stage is Where all the leaping, kiCkiNQ and punching takes place. The tWO dreadlocked Kung—Fu participants are dressed similarly loose, white pyjama-like costumes complete with black belts. There are three options: player versus player, player versus computer and, if you want to select demo mode, computer versus computer. The demo mode will automatically begin if you just sit there and do nothing. In addition you can choose .

—

between named

Slow

the

slow

laughingly

or fast

modes.

mode is quite fast

enough, thank you very much. Fast mode has the two

players dashing around like characters from one of those old Keystone Kop movies. Move up to this level only when you've become really adept at the art. There are eight moves at tWO shuffles, your disposal three kicks, one jab and two jumps. A” are executed by moving the joystick to the appropriate compass position. Pressing the fire button lets you make one further move—a smart about—turn from the direction you are currently facing. The quick shuffles take you to the left or right. The one punch in your repertoire is a stiff—armed jab. Used well it -

can

have very

gratifying

results: Kicks come in three sizes: the low sweep to the opponent’s legs, the sharp kick

November 7985 ATARI USER

to the midriff and, my personal favourite, the high kick. Executing the high kick when your opponent is some distance from you is most you are smoothly satisfying

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lance. There are two leaps. One is a simple vertical jump into the

__ -‘

sligg

taking you right ove r t h e to p of ‘yo u r opponent's head tothefarside of the stage. At the bottom ofthe screen, each player hasa Powlgauge, pain—level indicator. Itchanges colour as punishment is soaked up. When it starts to flash the player is in a fragile state of health and one more thump will bring him to the floor. The player recovers after a brief respite but always has a residual pain-level which rises after each knockdown. When this reaches an intolerable level that player is retired and the opponent declared the winner. It is comforting to note that nobody ever gets completely flattened —falling down on one knee and grimacing at the floor is the worst that can happen to

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fists and feet, there is one other hazard. From time to time an air vent opens in the stage ceiling and a large scorpion drops down to scuttle across the stage. You have to leapto avoid its .

poisonous bite. Attenborough would

David

not be amused scorpions are supposed to have Iethalstings, not bites! The scorpion interludes de— tract somewhat from the main business at hand and the game is exciting enough without them. Even so, they do present an added challenge. Scorpions aside, the only minor criticism have is that the contestants are identical —

you. Apart from your opponent's

twins.

ks A AVA.»

‘,

‘_

u.f“

you've both just

finished cavorting around the stage and have ended up close to each other, it is possible to get in a muddle as to which

fighter

is yours. Differently coloured belts or hair, for

example, would have helped. The two—player option is hugely entertaining but no doubt much of the time you'll play against the computer. And that option isjust as much fun, The computer opponent seems pretty easy meat to start with, a few swift jabs usually sufficing to bring him quickly to his knees, However, you mustn't let that mislead you into leaving your Atari and

picking a fight with the local Third Dan. For once duffed up, the first c o m p u te r o p p o n e n t i 5 immediately replaced by another but considerably more skilled fighter. And there's six more where those came from, each more experienced and tougher than‘the last. The challenge lies in seeing if you can out-Kung all eight con— One item intrigued me. The cassette inlay hints that excellent play may be rewarded. Rumour has it that the famous Kung—Fu talent scout Foo Yung (groan) and his son, Spling Loll (ditto) are in the audience. You'lljust have to play W6" to see if that’s of any my play wasn't significance even up to beating opponent three. CO|0UF is excellent While sound effects, introductory music, whooshes and beeps enhance the enjoyment. But it is in the animation where the game excels. The players' movements are very realistic the smoothness of the ?ying kiCk alone has to be seen to be believed. Chop Suey is superb, and at 0le £835, this has 901 to be one of the best Atari buys of the year. Go get it, grasshop— —

—

per.

Bob Chappell

Sa 119 a |if¢ I'QQlIiI‘GS

from BIO-DEFENCE, Tymac, appears to be an

idea in computer software. The object of the game is to keep a patient's temperature below the level at which he dies. There are two separate parts to the game. In the first an outline of the human body is displayed horizontally across a grid of approximately 500 squares. Using a joystick, you move a cursor from square to square within the body outline until you find an area of infection. There is no skill attached to it just suddenly finding this appears, indicated by a orange dot. From here you progress on to part two. This scenario is

original

November 7985

Ica

acted out in the infected area, which is laid out like a maze. You play the part of what appears to be a white cell, looking something like an amoeba, and your task is to soak up most of the bacteria around you. say "appears" because there were no instruc— tions with my advance review copy and surprisingly, none on the screen. There are, in fact, several different sizes of bacteria and you should only be chasing the smaller ones. Anycontact with the largest variety results in a darkening of your colour. I

—

30 ATARI USER

Io n

Should you contact these too often within a short space of time, you turn black and die and the patient's temperature rises by one degree. You can eat the big blobs but you've got to time it right, hiding in your niche at the bottom of the screen. Of course, while you're hiding the bugs are multiplying. Should you succeed in absorbing all the bugs, you automatically return to the first part of the game and start to search again for another infected area. Once you find one it's back

toworkasabuggobbleruntil

such time as you get zapped too often by the big boys, and the patient's temperature gets so high that he snuffs it. The more successful you are in your bacteria bashing numerous and the more vicious are the enemy in subsequent locations. The graphics are quite nice but don't really do the Atari justice, and the sound is nothing to write home about. An attempt has been made to synthesise speech, but the result is almost unrecognisable. The game was fun the first few times I played it, but didn't find enough variety to maintain interest. I

David Andrews

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Give your micro mainframe power

We’re only a local p h one ca " away

____—_____.___—__

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With MicroLink yourmicro becomesaterminal linked directly to the Telecom Gold mainframe C0mPUleri and able to tap its tremendous power and versatility. Right away you’ll be able to use giant number-crunching programs that can only run on a mainframe. You can set up your own computerised ?ling systems, store and update statistics and other information, cross-reference material between ?les selectively extract the information you want, perform massive calculations and design reports to display information from any of the ?les and in any format you choose.

The biggest bulletin board Of them a“ “—

The number of bulletin boards is growing rapidly. New ones are springing up in all parts of Britain and all over the world, with people of like minds chatting to each other on all manner of subjects. The only snag is that the vast majority are Wthh means l0l5 Of other single-user boards people are also "31an to make contact and all too often all you get is the engaged tone. BU! with the MicroLink bulletin board there is no limit to the number of PeOPle using it at the same time. And no limit to the number of categories that can be displayed on the board. —

MicroLink.

user...

The mailbox that i 5 al W ays Open MicroLink is in operation 24 hoursa day, every day. That means you can access your mailbox

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communicate directly to 96,000 telex subscribers in the UK, ii million worldwide and even with ships at sea via the telex satellite network. Business people can now send and receive telexes after of?ce hours, from home or when in a telex travelling. Youscan key during theday and instruct MlcroLlnk not to transmit it until after 8pm ‘ and save 10 per cent Off the 505“

Telemessages at third Of the

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More than96percent ofMicoLink subscribers can connect to our mainframe computer in London by making a local phone call. This is possible because they use British Telecom's PSS system, which has access points all over Britain. A local phone call is all you need, too, for access to the international Dialcom system through

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whenever you want. and from wherever you are even a hotel bedroom home, of?ce, airport or golf club! No~one needs to know where you are when you send your message

C051:

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The modem equivalent Of the telegram is the telemessage, which if sent before 8pm undjliv)ered ay by first post the following day (except Sis Originally designed for people to phone their message via the operator, the service cost5_£3~50 for 50 words. Now it’s available via MicroLink and costs only £1.25 for up to 350 words! .

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What does It a" cost? '

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Considering all the services you have on tap, is remarkably inexpensive. You pay a once-only registration fee of £5, and then a standing charge of just £3 a month. On-line costs are 3.5p a minute (between 7pm and 8am) or 10.5p a minute during of?ce hours. There is an additional 2p a minute PSS charge if you are calling from outside the 01- London call areaCharges for telex, tele-messages and storage of ?les are given on the next page.

MicroLink

Send and receive telex messages With MicroLink you can'turn your micro intoa telex machine, and can send and receive telex messages of any length. You will be able to

_______________.._

Software over the telephone

to use MrcroLrnk

How much It costs

_______._.__.____-

MicroLink is setting up a central store of

Initial registration

[71°0me telex:

for each CO‘TeCtly _50P addressed telex delivered to your mailbox. Obtaining a mailbox reference from the sender incurs a further charge of 50p. It is not possible to deliver a telex without a mailbox

fee: £5.

month or

Def calendar

Standing charge: £3 part.

Connect charge: 3.5p per minute or part cheap rate; 10.5p per minute or part— standard —

ra t

e'I

software programs which you’ll be able to download directly into your micro. The range will include games, utilities, educational and business programs, and will cover all the most popular makes of micros.

[Whom a a telex reference. If mallbox is received reference the sender will be advised of nondehvery and asked to provide a mailbox address. Each user validated for telex and using the facility will incur a charge of 6 storage units a month. Further storage charges could be incurred depending on the amount of telex storage and the use made of short COde and message ?le fac'm’es'

to t h e S ervlce.

connection

Applicable for duration of 1 minute. Minimum

charge: Cheap rate 15 from 7pm to 80m~ Monday to Friday. all I

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20p per unit of 2,048 characters per month. Applicable for storage Of inlo'miall'on, such a telex. short codes and mail ?les. The numberof units used is

Telemessages: £1.25

Filing charge:

on average calculated by reference to

Information Databases:

by sate 11.lte

__'______.___——-—————

‘

MicroLink is partofthe international Dialcom network. In the USA, Australia and a growing number of other countries there are many thousands of users with electronic mailboxes just like yours. You can contact them just as easily as Britain the only difference is V ou do users in from that messages yourIkeVboafd 90 the 51999de around the world Via satellite.

for up to 350 words.

—

Various charges,

Talk to the world

If you have a BT Radlopager you can be paged automatically whenever a message is waiting in your mailbox.

daily sample.

.__——-—-——————————

Radiopaging: No charge.

Any charges that may be applicable are shown to you before you obtain access lo the database

lntemational Mail: For the first 2,048 characters 20p to Germany and Denmark; son to USA, Australia, Canada. Singapore, szegnw au u r g?rfgsgkbl’sc? p per2335321112“;an Hon Kon and Israel. For additional 1,024 (1200/75 baud). magmas? 10p- 15p 01n yapp rres t ousers Ga ts‘dth e e 011. on d on ca H area —

What you need 'to ‘

—_————-—_—"—'

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MrcroLmk

access

of charges relate to the transmission information by the Dialcom service to other Dialcom services outside the UK and the Isle of Man. Multiple copies toaddresses on thesamesystem hostincuronly one "ansm'ssmn Charge“ These

Telex registration:

£10.

telex:

100 characters (UK); llp per 100 (Europe); 16513 per 100 (N' America):£1.15 per 400 (ReSt Of world): £275 per 400 (Ships at sea).

Outgoing

5.513 per

, Blllrng and Paymentle charges

quoted are exclusive ofVAT.Currentlyall bills are rendered monthly,

Deferred messages sent on the night service are subject to a 10 per cent discount.

“to

““

Appllcatlon

Allow 10 days for validation of mailbox

enclose my cheque for £5 payable to Database Publications as registration fee to Micr oLi nk. also wish to use Telex.

authorise you to charge an

.i".' °

Date

(Enter full postal address of Bank Branch)

W [cw mm

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Direct Debltrng Mandate

rrorrmnanam ovmsvearsoiase

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additional more my initial bill for validation. D

Whilst Database Publications Ltd is the supplier of all the services to you, the commission and billing thereof will be handled by Telecom Gold as agents for Database Publications Ltd, Date of first payment to be on 15th of month following commencement. Please complete billing authonsatron form A, B or C below.

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[1213151133

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l/We hereby apply to 10m MicroLink .

Please indicate month of commencement

Form AT

Day?metelephone

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You must have three things in order to use MicroLink: a computer (it can be any make of micro, hand-held device or even an electronic typewriter provided it has communications facilities), a modem (it can be a simple Prestel type using 1200/75 baud or a more sophisticated one operating at 300/300 or 1200/1200 baud) and appropriate communications software.

._~A__~A__—,f,.

l/We authorise you until further notice in writing to charge to my/our account with you on or immediately after 15th day of each month unspeci?ed amounts which may be debited thereto at the instance of British Telecommunications plc TELECOM GOID by Direct Debit. Bills are issued 10 days before debit is processed.

—

lintend to use the following computer 7____.

Name of Account to be debited Account Number

FOR OFFlCE USE ONLY: ,

debit my/ our Access/VisaPAmerican account number

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Mailboxassrgned Start date

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Overseas subscribers only

l/We authorise you until further notice in writing to charge to my/our account with you on or immediately after 15th day of each month unspeci?ed amounts which may be debited thereto at the instance of British Telecommunications plc TELECOM GOLD. Bills are issued 10 days before charge is applied to your account. —

Database Publications Europa House 68 Chester Road Hazel Grove StOCkpon SK7 5NY. Telecom Gold

Express

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trademark of British Telecommunications

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”7777777777777,

Date

C. Please invoice the company/ authority. If you select this option, which is ONLY AVAILABLE to government establishments and Public ( J) D Limited Companies. you will be sent an authorisation form for completion which will require an official order number to accept unspeci?ed amounts.

From

Computer Support "TH

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A fine selection of software and hardware its makers Something for every A TA RI ULTIMON!

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XOS

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Kampfgruppe Operation Market Garden N/A Break through in the Ardennes N/A Carrier Force N/A

disk 59.95 25-95 48.95 29.95 34.95 29.95 79.95 d'IS k 36 95 '

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HORIZONTAL scrolling is essentially achieved in a similar way to the vertical scrolling described in my previous article. However, as you will see, things are never quite that simple. You will rememberthat coarse vertical scrolling can be achieved by moving the start of screen memory down the screen data one line at a time. Horizontal scrolling can be similarly achieved by moving the pointers for screen memory along one character at a time. This is shown in Demo #1. Firstly you need to decide what data you want to show. have chosen to hold thedata in a string (A$). You will notice that you have to use CH R$(O) that is Control (the heart symbol) to represent a space. This is because when printing to the screen a space is CH R$(32) but the Atari converts this to a O in screen memory. In fact all the numbers printed are stored as a different number in screen memory. Play around with A$ to confirm this. Back to the program. The high and low bytes of the address of A$ that are calculated is, screen memory EXP? E 33g E 530W? and stored in L0 OLDLO HI and 3335333333 3 3323633 “3 OLDHl A custom, display list is created m Page F (memory locate” hereaaeetzet emptiness;3” 1536), and the Operating SYStem ls , a,“ IS iH a" low $253“?- if (3? hi??? an tolgaha}: the?rby e ctirokilng lSt into '9 I;yteso ISP av the a , 563 333323 {333 how a;3} decimal 560 and 551. Now we are ready to scroll. Firstly gist“; 15331; M 33 tag? {at increase the low byte of the address in sis" a if???) 1! REH— ewes, .v,333333333 3333333333333333333 1n m ?(1“):?$(1,20)="m as“ m':a5u1,1u)=nsu,zo)men I

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following the LMS command (Load Memory Scan —see previous articles) as in line 210. Repeat this and there you have coarse scrolling of one line. Smooth scrolling is again similar to vertical smooth scrolling. Demos: 2 shows how this is used. A similar display list is used buta decrmal.16 lS added the to mode byte. This IS 71 that Anne _15, mode 7 + LMS instruction 64. Adding a 16 enables smooth scrolling in that line. The horizontal smooth scrolling register is decimal 54276 ($0404). This can be poked with numbers up to 5 which will move the line along one pixel ata time up to a maximum of 16 two Graphics Mode 2 characters. Now obviously combining these two techniques will result in true smooth horizontalscrolling. Demo#3 is essentially the same as Demo .

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Demo #6 36 ATARI USER

November 7985

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complicated to discuss at the end of this article, Demo 1:8 will give you some idea of how much improvement they can give in scrolling. Asa parting note, on the XLand XE models smooth, upward vertical scrolling is very easy in Graphics 0. Try this. First load a relatively long .

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You now have your smooth horizontal scrolling. Disappomted? would be, because there 5 that flicker and flashing again. as The same problem arises before, because the changes happen part way through drawing the screen, only now things are worse because so many alterations are being made to get smooth scrolling. As in vertical scrolling, the only way around this is to use machine

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IT‘S by far the fastest growing field in micro-computing, All over the world micros are talking to each other over the telephone line, As well as to the ever-increasing number of public and private databases. bulletin boards and even giant mainframe computers. We want all Atari User readers to share in the new technology that makes all this possible, So we’re offering a unique starter pack at an unbeatable price. lt gives you everything you need to get in touch with the big wide world outside: _

—

Modem/Software/Serial Interface. The modem is the amazing Miracle

Te°h”°'°gy WOO“ 05,505.55 m“

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TeIeLink No. 3

News, highlighting all on financial, legal and to Knowledge Index, survey on portable

Issue Issue Issue Issue Issue

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£7.25 £7.25 £7.25 £7.25

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—'——'—

Total ——

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Access u...__.|__i Visa H—J—‘A

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D Cheque enclosed made payable to Database Publications Ltd.

£7.25

my credit

——|

(j) [72 00C:

IssueGlSept/Oct1985)

—}

(Nov/Dec 1984) 2 (Jan/Feb 1985) 3 (Mar/Apr 1985) 4 (May/June 1985) 5 (July/Aug 1985) 1

Debit

TeIeLmk No. 4

(Commence with Issue No.

Special supplement: Guide to Communicating with your Micro. All about user—to—user communications, protocols, how modems work, an introduction to networking and P53. Plus a guide to 39 modems listing all their special features. Special supplement: Guide to Bulletin Boards in the UK. An in-depth survey of what bulletin boards offer and what they cost, how to access them, interviews with 12 leading sysops. Plus a complete listing of 39 bulletin boards, pinpointed on a map of the UK.

Subscription to the next 12 issues ofTeIeLink ,

TeIeLink No. 2

»5jg

I—ORDERFORM——— Please supply the followmg. .

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51: t‘.‘

—

Special supplement: Guide to Microcomputing on Prestel. Contains hundreds of page numbers covering games, education and business and utility programs for the BBC, Apple, Commodore and Spectrum. Plus hints, tips and reviews of comms products.

(airs unit:

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tier

5‘3125; .

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on Page 61

the ma

_____.___.___—

and ?iiii?‘tift _,

IS IS

Includes the first Teletext 8; Viewdata the latest' industrial news. Plus features educational databases, start of a guide how to work out your phone bill and a micros with comms. facilities.

Use the order form —

even to download free software programs

—

W”‘e’exmessages"°g°‘e‘e‘5“°”’i”g'

powerful on the market, its simplicity itself to

"as"?

directly into your Atari. You will be able to join Micronet/Prestel, which will immediately open up to you a vast menu of 750,000 pages of information '— instant world news, sports, holidays, hotels, train and airline timetables, all regularly updated. And you can become one of a growing number of enthusiasts who are joining MicroLink, the giant database set up in conjunction with Telecom Gold. But ?rst, send for the Miracle package and enter the fascinating, limitless world of communications!

use. Just plug it into a standard British Telecom jack and you’re away! The package also features the superb Datari serial interface, which links the modem directly to the Atari’s peripheral port without the need for the 850 serial interface. The best hardware deserves the best software to drive it, and with the specially written Multi-Viewterm program the package is complete. It supports all the standard baud rates 1200/75, 75/1200, 1200/1200 half duplex and 300/300 full duplex. Your Atari User package will allow you to talk directly to other computers, to send your

l—‘l—‘A

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Name ___—S|gned___—___ _

Address

Special supplement: Guide to teletext page design. A leading expert tells how to achieve eye-catching viowdata graphics. Plus coin-operated Prestel, setting up educational viewdata systems, using packet radio to cut phone bills, on-line credit

reporting.

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Post to: TeleLlnk, Database Publications, 68 Chester Road, Hazel Grove, Stockport SK7 5NY.

TeIeLink No. 6

___—________—.

TeIeLmk No. 5 Special supplement: Guide to Communications Software. A survey of 37 communications software packages for 11 of the most popular micros. Plus advice on viewdata graphics, description of the de facto standard for UK bulletin boards, Xmodom, and online humour from Punch editor Alan Coren.

Phone orders: 061—4800171 Telecom G o/d: Mailbox N o_ 72:M AGOO1 pmstel: Key ‘89. Mailbox No. 614568383

Don't forget to include your credit card number and full address.

I I I

__—____—_—_

D E N IS Kl NAN E comes up With a program to teach your computer how to wm an argument

CONVERSE is an Eliza type pro— gram which simulates a conver— sation between the user and the computer but differs from similar ones by allowing theAtari to learn new key words and replies. It thus learns from conversations continuously and eventually will be able to converse without recourse to the learning procedures.It can also be altered easily to give the computer different "personalities". Atari Basic has often been criticised for its lack ofstring handling functions and for not supporting string arrays. This program providesa fairly extensive demonstration and tutorial on both string handling and file handling with the Atari. It includes informative REM statements and should be easy to follow. The string handling routines include simulating a string array in Atari Basic,a string searching routine, routines for joining and patching up strings and exchanging words within I a string. The disc handling techniques used are standard ?les for printing and inputting, NOTE and POINT commands for random access of files and the PUT/GETfilesforhoIding numeric variables. All of these files can be updated during a program run, and are used in all subsequent program

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the following

lines:

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1353

1355

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In ween

simulating a conversation bet— the computer and the user, Converse initiates the conversation and then accepts a sentence inputted

by the user. This sentence is then searchedfor specific key words which are con— tained in a me created on the first run of the program.

simulated string array and the keywords taken from the array for the search procedure. On subsequent runs the keyword ?le is simply read and the contents placed in the simulated string array. This simulated array is necessary as Atari Basic does not support string arrays.

Atari Basic does not have an INSTRlNG or specific string searching facility, so Converse uses an instring routine to search the input string to find keywords. On locating a keyword the program gets a reply, chosen at random from a variable number of suitable replies forthe given keyword, in the reply file. The reply is examined to see if it requires addition of a terminal phrase from the userinput. lfsothe phrase is examined for words which will be required to be exchanged in order to preserve grammatical sense when the phrase is returned by the computer. These words called SWOD words are personal pronouns and verb conjugations read from simple data statements within the program. Once the word is swopped the phrase is reconstructed and tacked on to the reply and the complete reply is printed. The program loop is then begun again as‘ the user is prompted for the next input. If during the conversation the program does not find a keyword in the input the user is prompted to teach the computer a new keyword and some suitable replies. These are saved to disc and used in all subsequent program runs. Ifyou choose the program to run in Learn mode any input that has no keyword will cause the program to ask for new keywords and replies. If the program is "Ct in Learn mode and does not recognise keywords in the input it Will give a f'bllJff" type —

response.

Thus the conversation is continued without the computer actually know— ing what it is talking about a situation find myself in all too often. When the new keyword is inputted —

38 ATAR/ USER

November 1985

replies to 90 With lt aftd are prompted to type in suitable replies for the _

keyword. require the terminal phrase user input to be tacked on to the end of the reply then the last character in the reply should be an asterisk, *. For examples Of this see the initial reply data in the program If YOU

of the

listing. Once the keyword, number of are replies and the actual replies the user are inputted by they printed to their respective files. The new

keyword andthe numberofrepliesfor

this keyword are printed in the KEYWORD-FM file. The total number of keywords and replies are then PUT into the NUMBERS.DAT file. The REPLY.F/L file IS finally updated With the new replies for the new keyword. As the REPLY.F/L file is being updated the sector and byte of each reply is saved in the P0/NTS.DATfiIe. The sectors and bytes for these replies are then placed in a numeric array as the program is rerun. This allows for random and speedy access of the reply file. Keywords and the number of corresponding replies are stored in the KEYWORD.F/L file. This is created on the first run of the program from the keyword data ofthe program and can be

updated during program

usage. In subsequent runs the data in the”

nil! ”mm“

1.05 till

all

IIEII

(1.1.5 R5" '

* it

KEYWORD.F/L file, which has or has not been updated, is directly inputted into the keyboard array. The simulated array is formed by inputting the keywords, all made to eight characters in length, into one (ARRAY$). large string The string isthen accessed at eight character intervals for the individual keywords. There is a random choice made for reading the keywords from this array either in the normal or —

reverse

order.

This is so that certain specific

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keywords do ”Oi dominate others by always being searched for first due to being in an earlier position in the keyword ?leStandard files, Print and Input, are used for the replies (REPLY-Flu, but the pOSitiOh 0f each fep'Y is noted in terms Of Its Starting sector and byte value. This is achieved using the NOTE and POINT disc commands and permits completely random access to the disc files. These seCtO' and byte values are stored in a standard file,PO/N7'S.DAT and are read into numeric arrays 0” running the program. The numeric arrays are accessed for the seCtOF and byte value Of a partICUIar reDIy by the program- The POINT command then pOSitIOI'IS the reply ?le at the partICUIar seCtor and byte and the correct reply is read. Numeric variables are used for the total number of replies and keywords and as they are constantly being

updated during

and

subsequent

program runs, they are stored by the PUT and GET command into a numeric file that holds single byte data that is, numbers between 0 —

and

255.

This need not limit the number of replies and keywords that files may contain as, for example, it is a simple matter to allow two numbers to be used which can be added, allowing twice the number of replies, and so

1238 Min MEI 5mm 10 IMME

was to: Ema x it IMP Imam: f [KEV(I)]m

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WHEN typing in Converseall REM lines and statements can safely be omitted. The data, particularly the swap words, should be typed in exactly as in the listing, as all the spaces, etc, 3,9 important. Changes can be made to the basic program if required, and completely different rep/[es and keywords used to create different personalities. A copy should be kept on a back-up disc as the program requires to run with a non-write protected djsa / should be delighted to hear from any readers with improve— ments or interesting applications or personalities for Converse. Because the program relies on random aggegs ?les it"s, OfCOUI'SE, only suitabfe for use with a disc drive

«1!th? xsur x$:"v" WEI Lamina it! If Lina OFF ms! LEm = 0 Lone Hakim 1310 ms macaw

estimation 1305 mm

’ November 7985 ATARI USER

1320 mi 1330 IF

mun“: rs we cm F$(LEI(F$)):“§“ THE! mums

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SAVE p|CTURE

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1550 1670 £680

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umsao

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£05”

40 ATARI USER

November 7985

ROUGH

lANCS- ("15 9JA

(Previous purchasersof Art Atari can upgrade to SMART ART for only £1.00)

PICTURETORMENT(16K)Verydifficult Colourful version

ALL ATARI

sum

INTER, ACE

OVER 80 DIFFERENT COLOURS CAN BE

BRUSH SPEEDS AIR BRUSH MODE PLOT AVAILABLE DRAWTO

saws

CENTRONICS

DISPLAYED AT ONCE l INTERRUPT DRIVEN CURSOR l 4 BRUSH SIZES l I .

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—

or to d'80

m—

drive If fitted

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Converse

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"MT I W 2450 0010 1 050m: rm

Tired of

typing?

Take advantage of our finger—saving offer on Page 61.

11 015110101 0

November 7985 ATAR/ USER

THE GRAPHICS

Self-adhesrve contrOIgraph’cs for the 600/800Xl. Free yourself from your reference manual You know the problem, typing in a listing from any magazine or book. You are suddenly faced with line after line of “Special" characters that are not shown on the keyboard, and that means searching th roug h your r e f eren ce manual 'us t to t yp e a program in. Well! now you can forget that problem with Graf-Stix controlled graphical characterfixed You can ?nd to theufront _°f”eaCh md'V'qual key. those SpeCiaI Characters mStantly- And they are really easy to f‘XJ

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Invert/Rotate/Mirror/Flipand

move feature make for

easy design. The move feature allows one to move any part of a picture to the location of their choice. You can use the 40 paint brushes available or create your own

and save

paint, fill mode

Computers

The GAD works with all printer modes, its absolutely true. You can use pictures created with the GAD in your etc. There have been several own programs/software graphics packages, but none that satisfied all your needs. Now at last the GAD has arrived. Don't believe us, see for yourself you'll be amazed.

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The GAD is the most powerful, most versatile graphics design program available for the Atari Home Computers. Its simplicity of use make it a joy for people of all ages to paint with. It has more than 30 different commands. An incredible 128 different colours can be used in any one picture. A three stage Zoom feature allows one the ability to do very deta'led and mmcate work‘

them to disk. Edit character sets, pattern and rainbow special effects make the GAD the best graphics program available for your Atari. If you own a printer you can obtain a printout of your creations.

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42 ATARI USER

These products

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November 1985

used on copyright

Bucks MKIJ IIBG. material.

Highgate Road '

BitWise

———————————

LAST month

©@

how the

saw

binary operators AND and OH can be used to combine pairs ofbinary

?g®80@ 0

A_t0uch of Q m9“: With bin ary Dumber \‘\-— s

The example we used that of turning machines on and off under computer control. Of course these operators have far more uses than this. To illustrate one, consider the Ascii character set. The codes for A to Z are in the range 65-90, while their lower case equivalents, a to z, are in the range numbers.

was

‘

Qw 0

;

Looked at in this decimal way, there seems little relation between the upper and lower case sets. If we look at them in hex, though, we can

f \-\A\\ $17“ N

do a

’ 9 (?, f a

N? m

23 g“ O

97—122.

that: A. .2

Q\\\

runs from &41 to &5A runs from &61 to &7A hope you can see the pattern.

see

Ascii In fact the numerical difference between a lower case and its upper case character is equivalent always &20. Looked at

iogtggégdti: Lihsrlxsrzj:nt§te?vz £31528” £59252?“

remember' we Startw'th

For example, the code for A is:

is:

So:

mutate ltlie code for 1) m l ( the cast .m1um ' ’ f" ( the “m 281mm m“

Similarly, the code for z is:

further use for AND isto testif a particular bit in a byte is set. Wejust AND that byte with a mask consisting One

z is:

1 1 1010 ‘701 °

In both cases the only difference is in bit five. So if we have an Ascii code for a letter, we can force it to be uppercase by clearing bit five to zero.We can do this by AN Ding the code for the letter with the mask %11011111 (&DF). Remember, the bits in the mask will leave the that contain in, the Ascii code bits corresponding for the letter unchanged in the resultant byte, whether they be 0 or 1. On the other hand,the bit in the mask with O in it will force the matching result bit to be zero. So: 1

?" 5°" for i 111511“! (the list - “Fl i the £66! {or Q all“!

“HM!

Alli)

gives

‘

%01011010

the be OS mask will %oo1ooooo,_the Ieavmg things unchanged ln the resultant byte, the forcmg a in bit five of the corresponding 1

401100001

the code for

the procedure

result bit.

and

—

%01000001 whereas the code for

reverse

’ l

It won't surprise you to learn that

in the bit being tested, with Os in all the rest. The bits with O in them, of course, set the corresponding bits in the resultant byte to zero. Since the rest of the bits are already cleared to zero by the mask,

willltbnei tllle coértzslplgndirlgogesulthbit in

ate between fairly eaSlIy.

Let's see how this works in practice. Ifwe were testing for bitfour being set, the mask would be

%00010000-_ and also with

non—zero.

the bit being checked

clear,

%oo101 100,where bit

the clear, and you H see that zero an non-zero are reSUIt'nQ bytes

four

|_S

respectlvely. lts Of EOR/XOB? Well, 80. what If the pair a ls to of return anCt'Or.‘ and O b'ts differ, 09mm?" [belng they re identlcal. Given th'sg we San _

mm XOR to test use Wh'Ch differ. For example.

yte

m a

11310111! 111301151 -——————

XOR ‘

gives “1100011

investigation: 0 If that bit is

%OTOF1V1(?’gg'whe‘rt‘e'ihvzzfisw

the only thing that could stop the entire resultant byte being zero is the value derived from the bit under set, the corresponding z result bit will be set also (1 AND 1) so the resultant byte will be

we can differentizero and non—zero bytes

machine code

b'ts neatly mark '

the

where differlng We

set palrs. can also

use

OU"

the

EOR/XOR

byti, bl; 0 or'tNhOT a mas WI EOOme'leme'n: ing I

BI BBY concludes his series on blnary numbers MIKE _

%11111111. Since the mask is all 15, the result depends entirely on what's in the byte under investig— ation. Bits that contain 15 will give 0 _ November 7985 ATARI USER

Bit Wise

(since

EOR

contain zero

0), while bits that

willgive 1,since0

EOR

110101119

This

exactly what we want to happen with a NOT change the Os to ls and vice versa. For example:

gill" “09991“

—

gill"

191019910

l the

manhunt

which

whatever it is we’re on to the background, it drawing will be displayed in the resultant colour number. It's rather like mixing

of course, non—zero, srnce the bytes differ. We've probably already "19000th the use of EOR ln graphicsappllcation

IS,

are

when-we EOR 1szero,they must have been of bits identicalsmce every pair must have Q'Ve” Wh'Ch only zero, happens when the bit values are the

colours mathematically. To get rid of what we've drawn, we draw it again with the same colour n u m ber, once more u nder the influence of EOR. Of course EORing twice with the same byte gives us the original byte back. This results in whatever it is being drawn appearing in the original, background colour. Hey presto it’s gone! Well, that’s the end of the series. H 006 f U II V you ,” h ave gamed some idea of the power of binary numbers and the ways they can be combined. Ive only touched on a fraction of the n tral uses, but ll be well pote you equrpped to work things out for

same. ,

"0”‘Zer9 ave Sba 99” a pa" 0 refsg'i”We at m.“”flame so the two under '

differ,

101911109

run

bytes

consrderation must differ. ple' -

For exam—

second

byte

result

101110010 -—-—-—

I second

byte agam l first byte hack., l

11.191“.

We use this EORlng technique to draw things on a background and _

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,, 9,

XOR

119191019

if?

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1199191110

201011100

OW”

first byte

xgmbm '

XOR

programs where It 3 Widely used for Its hey presto effect. This 15 based on the fact that if you EOR a first byte With a second and then EOR the result of that once more With the second byte, the flfS’f byte reappears. Look at this, if you dont believe me:

We can also to test {159 EOR/XOR two bytes identical. If the result

—

number

“It“!!! 111111111

XOR

X08

move on, leaving the back— ground unchanged. In this case the first byte is the background colour number. |f we then EOR our second byte corresponding to the colour

then

whereas:

use the

B.side.

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CHESHIRE 0270414118

Beginners .

33!“ *

s A)

(i, ‘ ;

“M

‘

""\

:; m.‘

“~

vy‘

)

‘i’!“\\ "g?“

ITOLDyouaIieIastmonthwhenI we'd be continuing with loops! Before that we've an interesting diversion into the world of strings. Strings are simply groups of said

numbers

characters,

letters, marks and so on, ”strung" together. The micro remem— bers them as a group. More often than not, they're words or sentences or

‘

. . \‘ ““"‘ \,mimm

‘

.‘

. .

MIKE

happened

This is

String

Notice the quotes they're the to the Atari that it's a we way signal string we're dealing with. Also, whatever's between the quotes is reproduced exactly so: PRINT 'Thii is a string' —

This Is

38 Dill STRING‘lbl _

only

esnxc cage, fTR/lNG$chan ers Inbth'_5 ever Ira-c °."9' course, it can can the be over S'X’ undgrsnx as longniltnust rogram ilustrates. run If you H see the

'.t'

strtng'

123456 1 23456 123 I

think you

can

YOU

mind

string being shorter

than by its

maximum size, as shown 12345 (Win? heDDNYaccepting as YOU can lengthen And JUSt strings, SO YOU can Shorten them, as shown by the assignment of 123 in line 100. After running the program, enter: PRINT

STRINGS

you'll find that it's 123, program left it. Now enter:

and

outp1u;.345

the 1234567

However, the micro doesn't the

they're going to be. That is, you have to DIMension them as in:

and: ‘

ter.

you followmg

/ '4\

—

size

y‘

it assigned to STRING$ in line 80 was one character too long, so the Atari simply iQhOFGd the last charac—

punctuation

‘\

gu’de through the m'cro jungle

as in:

a». u Ja4a—wl Mu

Cw?iiliiikss;é Jill! Mtge—? s“,

VII Of BIBBY .

m taon3!

c mm Réa‘ ?

Part

b.—

L...

STRINGS

the

Notice that the two quotes go directly with nos p ac e b e t ween.

side b y side

guess what's

Then enter.

will give different outputs,

‘

since the second has two spaces between the quotes and the first word. We saw that we can label strings with variables as in: STRINGS

llThis is

string'

The rule for string names are identical to those for numeric variables, except that string variable must end With a $.130 Perhaps the most important thing about strings is that you have to tell the micro in advance the maximum names

10 RE" PROGMH

STRINGS

I Th' t'ime instea cl f printing 123 o. as t hls value of the string, absolutely _e ”ommg appears °” the screen .Sa‘fe for the READY prompt. This Is because the value of STRING$ is absolutely nothing since: .

N "I" 30 DIN 40

CHRSUZS)

STRINGS“)

smack-12145"

56 PRINT STRINGS “ 60 STRINGS-"123456“

70 PRINT STRIIG$ 80 as

5TRIIGS:"1234567" pun STRINGS

STRINB$=" b t een the t y th' h b strin 9 eve 203 sing pac eeTvi‘Zis quaitae8,$2 0Ute I

STRINGSZ"123" 118 PRINT STRINGS

e\ /

“as WM

t/4

...

A'.'

0:0‘?s Q .

i”

@°@

W/ W N» “hf/C's” A‘ 1&3“, "“

K”

”

‘

\_._

‘W'

"j:<,,»-'.‘,-

it i /“':... a | re /\ /L".((‘5A}' .~; "ct-x ‘V‘ W v...¢. ’\l “pt/AA:—

(

% xv

_——-——>'

Program/ November 7985 ATARI USER

string.

of To see some more. aspects on the Atari, aSS|gn: strings

a e nu Y9u'1hriii've rovrn

reii§°y“o§eifavii?é Aspifr‘lé'fié‘r’lél‘fé

We’ve used it with a string variable, but you can, if you wish, use it with a string in quotes as in: is.

it, it can be

and

you'll

see HELLO

appear. NOW

try: PRINT

leSS-

STRING? LLO' .W|t.h STR/NG$(” the whole StFmQ ls means the printed out since the slice starts at the first letter. On the other hand STRING$(5) gives us a single character slice, since the fifth letter of the string is also the last. See what happens when you try:

PRINT 57311455“)

you’ve already dimensioned it? Don't forget, though, that a string doesn't have to be the size you've dimen— sioned

the th'rd letter tfr'om e end, glv' ng

message, smce dimensioned. Anyway, at present STR/NG$ should hold the value HELLO. Try entering the fo||owing:

This might seem a bit cockeyed to you, though. Why do we need LEN since if the string's in quotes you can see how long it is, and if it's a variable

o W0“ thelgtfingfinighessggjgeGesn/gff give us

error TEST$ hasn't been

LENl'ABCD'l

string. The start of the slice will be the character whose position in the string is given by the number in brackets. lt

TESTS='HELLO'

get

iiz'azruwajrne jstfgtngsllsiczrgtfh $5,522

been able

Incrdentally, we V? only to to do all th'3 STE/NG$ assigning because we've dimenSioned n when we ran " tried to assign Program ”W? ‘° a “W “a“ab'e as

5 .

flhs‘irizgsg?rsiszggf'

zbsolugelyno characterswhatsoever.

You should receive the answer:

what:

STRINGSlSl

gives you! What's happening is that by following STRING$ with the brack—

LENGTRING”

LEM")

the” enter: PRINT

pmr smmssm will produce LO. No prizes for guessing

STRINB$='HELLO' and

will give you LLO, while:

LEN lets you find out so you can, for instance, allow for different lengths in your screen layout. Before we leave the LE.N,try-tofind null of the With: length string

is called the null string and we use it when we wish to wipe out, or nullify, a

STRINGS“)

Programllgivesagraphic example of this slicing using a FOR NEXT loop. Here the loop variable START decides the starting position of the slice. Each time through the loop the slice starts further up the string.

”mm,

You're ”Sing lN’PUT string variable, YOU wont be too sure how long the string will be.

Often: When W'th a

arrive.

and ELLO should

PRINT STRINGNIS)

‘

10 REN PROGIMN II

J ‘

20 PRINT CNRSHZS)

30 DIN STRINGSUD)

40 STRINGST'QBODEFGHIJ"

50 FOR STARTLI T0 18 l

60 PRINT STRINGSHTART)

m!-

"? N“, A M /”it“ /~l‘. ‘ ‘ér‘kf?—?g'

ar‘ ”M

Q 4

sea-i

‘

‘/

...;3.

; l

Program //

«—

(&/%l F3; “(Vi—3...‘ . 0 ?s‘ Gog o o y/ 49 3 are. ‘§/E\'Q\§if//% Q '. '.\~ fi€w 4 "‘-—\’ '_Y‘C-§/\127 in) ' o. .0‘ f?’ “sates &. ‘Qp 0

ti, \

1»

.?.

1M4

t??f ‘P-si—r

(J V

60 PRINT

g”

l".

A; 50.

‘

46 ATARI USER

‘l't'A'JmilAlexé-gi' 1

November 1985

Wu“

\__.«

‘1

.4\ ??/Qén

sritiiissisrmiii

effect:

>Q§////®\\\ jli/s i%\\'\\\\\\\\//// WgA/?‘?jy /,\//%§ ?g'f-QJM/A/L ‘::v%’3@ig?égg& ;

‘

The first START has time. through the value so line 60:

‘

EABCDEFGHIJ. 00p-

———‘

Let's look at this in detail. The first part of our program clears the screen then sets STRING$ equal to We then enter the

‘

70 NEXT STMIT

N’

60 PRINT STRINGS“)

If you’ve been following this see it means we can print out

‘

you’ll from

the first character of STRING$ to the

———————_—Beginners last.

That

it prints:

“WHEN” time thr

then? 222m is

u h

the

s?)?ne so

can

lOO

is E2

4. “Ruckummmw.

at the

STARTis 3,

"FINISH“;

Input FINISH 100 mam smtucStsmnt,F1utsm 90

W PRINT STRTNSNMM

line Program ”I

60 being: STRING‘“)

80 PRINT

program ”I actually works. Lines 60 80 prompt for an input value for the aptly named numeric variables START and FIN/SH. Line 100.

and

which gives you:

Since STRING$ starts at its first character and finishes with the tenth, the whole of the string is printed out. take a l°°k at Program V' Pinallyl, We re “5'”9 the fact that: PRINT

CDEFBHIJ

100 PRINT

and so on.

Finally, 373437- has the value 10, so line 60 prints out the slice from the

10th character to the end—the single letter J_ Actually we can slice offany part of a string we want by giving two numbers in brackets separated by a comma. The first number specifies the start of the slice and the second the finish. Enter the following (assuming you've run Program II): PRINT STRINGNZ,“

You'll get back: BCDEF

Remember,

STRING$

eXp'GCt-

Program lll allows you to experi— ment with slicing STRING$. Initially STRING$ is printed out,then you'llbe prompted for the number of the character YOU want to start from, and the number you want to ?nish with. The slice you've requested will be printed out, and the process repeated. (You can escape from the loop by pressing

STRINGHSTART'HNISH) us exactly the slice

want. For instance, if we wanted

slice

from the second character to the sixth, we would input 2 for START and 6 for FIN/SH. Line 100 then becomes effectively: 1"

19 RE" PROGRQH

30 D11! STRINGSuG)

‘9 Slnl?ssz'mBWEFGHI-l" 50 FOR LETTERZI T0 18 60 PRINT STRINGStLETTER,LI-:TTER) 70 IE!“ LETTER

P’og’am

the Break key-l

Play around with various slices until you're sure you understand how they operate, then have a look at how

made the loop variable, to 10, LETTER, which ranges from

we've

so line

60 PRINT

TheIoopformedbylinesSOto70 does the actual

printing out. The slice always starts at the first character of STRING$ so the firSt number inside the brackets in line 60 is fixed at l:

20 PRINT CHRSHZS)

STRINS‘Q'M

which gives us the slice we require, starting at the second character of STRING$ and finishing with the sixth. Program IV uses this slicing technique to give us the inverse. of Program H by printing out the W“ character of the then the first string, two, followed by the first three and so

STRINS$(5,5l

prints out just the fifth character of the slice starts and STR/NG$, Since ends ?fth character. Instead W'ih the Of Spec'fvmg a number, however,

on.

ABCDEFGHlJ, so STRING$(2,6} gives us the slice with its second letter, B, and finishing with its sixth letter F Notice you get five |ettersl not the four that 6—2 might lead you

then gives

smmssu.temsmnssn

As you’ll see, the whole of STRING$ is printed out. The reason is that LEN/STRING$} gives us 10, the length of STRING$. This means that what we’ve entered above boils down

119 PRINT 120 “To 50

gcpgpguu

60 PRINT

IIPIIT sum

second

character of STRING$ and continue to the end to give:

On the next cycle,

CHRSSZS)

2: 23:1 "5:33:55 7";

STRINGM)

start

further along STRING$, giving us our triangle of letters. After you've run Program IV enter:

III

PROGRQN

29 PRINT IO DIN STRING (19)

effect: “l

“E"

reads: STRlNBSlLETTER,LETTER)

This Will pick and print out each letter Of as you ” STRING$_'” turn, see When YO“ “m 't' we COUId have written By the “he 50 as.Way' _

65 PRINT STRING$l1,FINISHl

FIN/SH varies from to 10 throughout the loop, so the end of our slice gradually gets further and

FOR

LETTER

LENlSTRINGSl

10 RE“ PRnERnH I" 20 PRINT CHRNHS) 30 DIN STRINGSHO)

4. STRINGS:"ABCDEFGHIJ" 59 FOR Flulsnzl m In 60 mm STHIGStLFIIISH) 70 HEN FINISH

Program /V

Since LEN/STRING$) is 10, this is equivalent to the original line 50- it has the advantage that, ifyou missed out one Of the letters Of STR/NG$ when you tYDEd in line 40, the LEN/STR/NGW automatically compensates for the error, calculating the true length. t Well, perhaps d'df' m'SIGad.y°“ too badly V9 used qmtea afteraII—we few |°095 th'S month. And "EXT _

month there'll be even more! November 1985 ATARI USER

With the Multl-Vlewterm/Datatan modem serial interface plus software package from Miracle Technology. .

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Atari Basic already recognises the two commands AND and OR, but these are treated as logical operators. In other words

their result will be

either true (1) or false (0). To illustrate this we'll use Basic program:

You can find more information on this subject in the Bit Wise articlesin Atari User for August and September

1985. The machine code routines provided by Program permit you to use all three of the bit by bit operations on two 16 bit numbers, Table II lists the start addresses for each machine code routine. I

a simple

Start address

Operator Subroutine line number

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However the operators can be used in bitwise fashion not using Atari Basic commands, though. With bitwise operations all corres— ponding bits of two numbers are compared to produce another bit th e result blt. Table lists the result bitsforAND, EOR and OH operations. _

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consequence so did Majik.

Obviously the Magicians' Union was none too pleased and so, in the moon tower of Baskalos, it placed a moon c 'y stal p owerful enou 9 h to cover the whole kingdom. So what is the problem, you may ask? Well some little thing has nicked the crystal— and off you go to find it. Two new elements appear in this game. First the use of spells, through a CAST command. Each spell requires a focus object~ listed on the inlay. It might have been a bit more of a challenge if you had to discover which object was a spell focus. Some of the connections are a‘bit remote. A pearl is the focus for the SNOOP spell and gloves for discover— ing whether or not TREASURE is valuable. .

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LEVEL 9's Red Moon is now in the shops and doing well by all accounts. It's the first Atari version with graphics, and part of Level 9's new strategy of releasing lower priced games between their normal priced "theme" games. At £6.95, the same price as Emerald Isle, Red Moon is EBCheaper than the Silicon Dream Trilogy, the final part of which, The Worm in Paradise, will be launched soon. in the meantime we adventurers are to get to grips with the first Majik adventure from Level 9. The story goes, as recounted on the inlay, that when Majik was at its most powerful so was the moon which glowed surprise surprise deep red. The moon and sun,however,didn't get on so well together, and whenever their paths crossed they tended to have a bit ofa battle, and so the moon grew weaker and weaker. As

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the other spells, they will not work in the presence of iron, which can be a bit of a bind. The other addition is of combat, as some of the treasures are guarded by the mythical beasts of the kingdom. This is the weakest of the new elements, since the combat routine is repetitive and is, in effect, a stand up battle between you and your opponent until one keels over. The first screen sets you on a grassy plain and gives you the first taste of a slickly drawn colourful, yet somewhat two dimensional, graphics screen.

The plain is a sheet of green, with what appears to be six tufts of grass. The screen also refers toayellow sun, but unless my Sony is playing up, or that is the RED moon up there, the sun is anything but yellow. Just to help you at the start, you own nothing. By following the guide sent to reviewers you are able to quickly acquire several useful pos— sessions. The ubiquitous axe and lamp, and by drawing the lake, a pearl, not from an oyster but oyster fun 9 us— shades of Return to Ed n 9,3. In fact there IS a great sense of de/a vu about the whole game. The graphics mean that the text is not as voluminous as usual and the whole .

game seems

to consist of rooms,

corridors and caves, with few interes— ting articles or problems other than a knock 'em down fight to the death. The problems are not as involved as we have come to expectfrom Level 9, and some problems are recognis— able from other adventures, such as getting past the watchdog. Anyone who finishes The Pay—Off will have no problem here. reserve my final comment for Level 9's graphics. Let‘s face it, they add little or nothingtothe game. They merely depict the fixtures of the I

————————Advenfuring in which you stand. Even the more interesting charac— ters, such as 809 the Newtling and the Rat, are not drawn. At £6.95, Emerald Isle is a definite step forward by Level 9, a good cheap adventure with bags to do and lots of atmosphere, Red Moon ioses much of rooms

that involvement through including graphics, and to my mind the sacrifice is

too ”great. On to a game which requires no

introduction following the review in the August edition of Atari User, Infocom's Hitch Hiker's Guide to the Galaxy. in that review the problem of how to get the Babel fish was touched upon, and it is an extremely entertaining puzzle which unfolds as you try to prevent each successive Babel fish from disappearing in an even more convoluted way. It is not my policy to give away the answer to a problem. This particular problem, however, had me so enjoyably bamboozled that, step by step, shall take you through how to l

solve it. People wishing to extend them— selves should read no furthur, but jump to Wizard of Akyrz later on. Now then, as Arthur Dent, recently of no fixed planet, l have come to my senses in the hold of a Vogon space ship, and have a sleeping Ford Prefect

and a Hitch company.

Hiker’s

Guide for

Knowing from the books that

now need to insert a Babel fish in my ear in order to understand the wider universe and its various tongues, i press the button on the Bable fish dispenser, only for it to shoot across the room and vanish through a hole under a small hook! No problem. Simply remove my dressing gown (i hope no one comes in), hang it on the hook, and try again. This time the Babel fish slides down the sleeve of the gown and slips

through the previously unnoticed gratmg on the floor and down the

wall. After several attempts at catching the robot eventually hit on trying to block the panel. Several bulky objects later, includ—

thrown overboard is translated

ing myself, the panel.

place the satchel next to

Press the button and this time the robot ploughs into the satchel and the Babel fish arcs gracefully into the air, where a top half of the cleaning robot zips out and grabs the fish in mid-air and vanishes. The next few hours are spent flinging a succession of objects into the air and watching a succession of extremely efficient cleaning robots gather them up, plus Babel fish. Even summoning the Sirius Cybernetics Corporation engineer robot did

Adventure international, where Simon Ashford keeps finding his spectacles falling off. Early in the game, Simon, you should find a painting held on the wall by a fine chain. That should fix you up all right, but carry plenty of objects as mapping this Mysterious Adventure is as tedious as ever. Finally Glitch of the Month this time goes to SP. Banit of Daventry and concerns The Pay-Off from Atari. Not the two responses that he got from the game, however. They are both quite deliberate, and you should geta chastening response for one of the things you typed. No, the glitch belongs to the Atari Helpline, which told Steve that by cutting a notch in his disc he would corrupt it. In fact that is the only way to save the game position on the disc provided, which comes with the Atari disc promotion package. Failing that, any disc formatted to standard DOS 2.0 will enable you to save your position. Tut Tut Helpline. A medium T shirt is on its way to you

B P111]

only repairs the automatic thumb tried throwing in the air. Finally a brainwave. Instead of throwing things into the air before getting the Babel fish try and get them there at the same time. Carefully piled the mail on the satchel, and pop out comes the Babel fish, down the sleeve of my gown, onto the towel, scooped up by the robot which smashes into the satchei, sending the whoie kit and caboodle into the air. So while the top half of the cleaning robot is frantically gathering up junk mail the Babel fish slithers neatiy into my ear. So now when the Vogon announcement that Ford and are to be no good. You see, he l

Steve. Also, move things around in the bank to find an exit you ought to realise is there, and you‘re almost home and dry at Luigi’s.

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can

still smile. The HHG is Without doubt the zaniest, funniest adventure yet writ— ten. even if much of the action simply unfolds before you. it's an absolute must for fans and non-fans alike. This leavesme time to have a quick look at Wizard of Akyrz from

‘

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—————————Moilbog RECENTLY

purchased an

reliability complaints with the 7070 cassette unit / settled down to the keyboard and taught myself the majority of Atari Basic. However it does not supPO” 3” the WWW“ modes 0" the GTlA chip, in particular the mode which allows 76 colours with a resolution of 80 x 792.

So i am left in a position where/know it’s in there but/ can't get to it. Are there a few simple pokes to put me in this mode? /f not, can you suggest a book With a routine to do this.

Atthemomentalllhaveisa few American books and they seem to deny the existence of such a mode. in reference to the new XE

range which I'm told will have improved disc drive available, shouldl buy a 7050 or will the new disc drive be compatible with the 800XL

a new

disc and the available M. Wilson, software? Yeovil. 0 You willbe delightedtofind that Atari Basic does support —

the

extra graphics modes, even if the books you have been reading don't. After Mode 8 there are another seven modes (or three on the old Atari 400/800). Briefly, Mode 9 has one colour and 16 brightnesses (80 x 192). Mode 10 has nine full .

Gra

0 n — colour/brightness combinations (80 x 192). Mode 11 has 16 colours and brightness (80 x 192). Mode 12 is multicoloured text (40 x 24), Mode 13 is multicoloured text (20 x 24). Mode 14 is 2 colour (1 60 x 192), 1

lVlode15is4colour(160

which lights quite brightly on the power supply at the

joystick port on my 800XL. / wondered whether you could zei/ me how/could turn it off and then on again, What software would have to be written to achieve this and which two pins would the lamp have to be fittedto on the _

Dean

iter, Wellingboro,

Ross—

North—

ants. 0 André Willey replies: The fact that the bulb may light

192). See Dave Russell's Gra— phics column for more details. We wouldn't bother waiting for the new drives —for quite a while yet software will be only available for the old drives, and a 1050 is quite cheap now

anyway. -

Barushlng

have had. The first of these mind bogg/ers is that/ was wonder— ing whether the video touch pad from the Console game (7200) Star Raiders is compatible with the joystick ports

of my Atari 800. /f so, how is it possible to “read” the various buttons of the pad? Second/y, / have discovered in theAtari manual ”YourAtari

Computer" the peek/poke location for allowing up to files

open

simultan—

modore/BBC domination, good old Atari have finally

quite brightly does not necess— arily mean that the computer is rated to run it. The +5V DC output on Pin 7 of the joystick is only rated at connector 50mA maximum drain, which is not really enough to run even a small bulb. the The PIA output ports —

are joystick connections rated for TTL levels, one load. This means that you can't directly run a bulb from the —

port.

if you

run

from the TTL port

should be allowed seven ?les open at once (i only require four) so what is the problem?

Finally, I was wondering whether you know of a program that could handle vertical and horizontal scrol— ling in various graphics modes. R. Chapman, South-

—

ampton. table of the to see if a console key has been pressed: PEEK (532 79}: You will get a value 0-7 and the following explains the meaning of each: P.S. Here is

START —

2 3

START —

4 START 5 6 7

x being the amount

offi/eslwanted

my disgust this failed to work even after sustained To

efforts to discover the problem and l have vicious/y savaged various pieces of my Atari equipment. / am sure / have enough

scene and switch a bulb/battery then the sky's combination, your limit. If you go one stage further and use an opto—isolator or relay, you can even switch mains indeed, I've built a module to do that very thing. The software would be very simple indeed, needing only 3 very few POKEs. If anyone would like to see an article on plugging Ataris into the outside world, then |et US know and we’ll plan one forafuture issue.

—

START —

SELECT OPTION SELECT OPTION OPTION OPTION SELECT SELECT —

—

——

—

to open atone

time.

—

peek location

full paragraph carefully explained that / should poke

micro

memory?ndusing 005 2.03!

eous/y.

7807

HAVING been an avid Atari user for many years now, I recently bought your mag— azine which I found, to my delight, was that which I had been waiting for. AfteryearsofSinc/air/Com-

However

andotherAtariUserslknowof

b 099 I ers

transistor

woken up theirmagazine/soft— ware markets which pleases me no end. lam writing in the hope that you can solveafewproblems/

seven

IHAVEasma/lamperagebulb

alore

hues

—

Lighting up the

joystick port?

0 Firstly, assuming that the video pad from Star Raiders works in the same way as the ordinary key pad for the VCS, there isa little program to read the buttons in the Atari Basic that's Reference Manual the original loose leaf manual released with the old 400/800 machines, which is still available from Atari. —

enable extra buffers DO work,

but don't forget that they won't come into effect on?) you hit the System Reset button.

Better still, POKE the

num-

you require, then go to DOS and format a new disc. Once you’ve written the DOS mes to that disc, the new con?guration can be booted up évery time. For anyone who wants to try for themselves, location 1302 contains the number of drives activein bit-coded form. bers

. November 7985 ATARI USER

_—_—_____——

Thus

you have

800, but when/ran the game

Drive only, 3 means Drivesl and 2 are active, 7 means i, 2 and 3, etc. Each new drive requires more buffer space to work, so if you only have one drive, POKE with to save memory. Location 1801 contains the number of active buffers. Each open me you wish to use simultaneously needs one buffer, plus each active drive will need two buffers. Change this number if, for instance, you want more than three files open at the same time. Don't forget, though, to either hit Reset, or format a new DOS disc and re—boot before you try to use the newly—set up configuration.

the screen was disturbed by ye//0W and orange f/ESheSis there anything wrong With the program? / also tYPed in Treasure Hunt. i had not ?nished the program hilt/had 10 90 001280 / taped the program With my Atari 7070 recorder. When / returned and tried to load the program, the computer loading sound was distorted and "Error 740” appeared on the screen. $0 / reloaded the program. This time the message "Error 738" appeared. The whole program had gone. Please can you explain Kalwhy this happened? pesh Tanna, Kenton, Mid-

means

Bomb Run flashes WHEN I received the July issue of the Atari User I typed in Bomb Run on my 76kAtari

lOWN a BBC Micro and am considering purchasing an Atari, due to its excellent graphics and colour, and also as it uses the same 6502

whose microprocessor, assembly language / am accustomed /

know

with.

that

the Basic

provided with

the machine is quite good, but is not struc— tured. / shou/d therefore like you to tell me what is the best Basic tobuyforit,ifnecessary, which has structured pro— gramming and is generally similar in concept to BBC Basic. lhave heard that Basic XL is excellent, and would be pleased if you could give me any details on this. I have also heard ofa language known as Actionl, and would like to know the purpose of this. / would like to know the best assembler cartridge {disc} to buy. / already know the 6502 operation codes, but do

notknowtheAtaricomputer's

built in machine code routines, 56 ATARI USER

November 7985

—

dlesex. 0 As far

as we know there is no problem with Bomb Run.

Check all data statements and any pokes made from items read from data. A faulty poke could easily crash the computer. Also, see the modifications offered by Peter Appleton on Page 58 in last month's Atari User.

and the start

screen

locations, and how they are constructed. lshould therefore be gratefu/ if you could tell me the names ofany books giving the relevant information, that is, a book like the Advanced User Guide for the BBC, except obviously for the Atari. lknow sprites are provided memory

with

the computer, and wonder how many there are, and whether they can be multi-co/oured as are the Sprites on the Commodore 64. Also can you give the name ofa book which had this sprite information in it? is itpossib/e to use one disc drive between two computers,

without actually/raving toplug

and unplug the drive between each computer? Final/y, do you know whether there is going to be a £400Atari ST, andifso, when is the 'ST'rangegoing to be on sale? N .C. J udge, —

Ashford.

O André Willey replies: Both

The problem with your crashing tape sounds like the age-old bug in the operating system of the 400/800 computers—it was corrected from the XL range onwards. Basically, the tape recorder buffer area can be left full of random data and this is not cleared before writing to the tape, To correct this, anyone using a 400 or 800 computer should always type LPRlNT before saving anything to tape. This will clear the buffer by to a sending the contents printer. If you don't have a printer, you will get an Error 138, but the buffer will still have been cleared, so you can ignore the message.

was a headache in. You have a

typing them monthly disc with the programs on, but why not a monthly cassette? This is quite irritating because l have no choice but to type them in. lsuppose that other Atari users think the same.

Also,

when

type

graphics Mode8 on my 400 it shou/don/y be one colour, but when / start drawing lines, they end up in lots of different colours. Why is this?

Final/y,

can

you

name

anywhere where/could

buya 73-pinAtariinput/outputp/ug

like the

ones

the tape

yourmagazine, lnoticedthat it

deckSP—A. Groves, Bristol. 0 The multicolour lines in Graphics 8 are not the fault of the computer, but of the TV you are using. The British TV system is made up of tiny patterns of red, green and blue dots. By turning three adjacent dots on “full", you get a white image on the screen. The problem is that a Graphics 8 pixel is about the size of one of these small

Basic-XL

editor/assembler,

PlX'Iated _

plxels lOWN an Atari 400 and both 470 and 7070 recorders. LOO/(1779

at the programs

(and

its new, even big brother

powerful,

Basic-XE) and Action! are products of 088 in California, and can be obtained from many dealers or from the UK distributors, Software Express. They each have their own advantages.Basic—XL/XE have many features not available in normal Atari Basic, including structures, sprite handling, better I/O, etc. They are also about three times faster than Atari Basic. Action! is a very high speed editor/compiler system which behaves like C and runs faster than anything else on the Atari except machine code. It is also quite easy to write in, with a format nearer to structured Basic than C. use both extensively, and I

recommend

them without

question to any serious Atari programmer. Your second question boils down to 088 again. Mac-65 (cartridge or disc) gives you speed, macros, etc. It also is an

though it

doacompletedisc—to-disc

can

assembly if required. For the technically minded, |

recommend

three

main

books: De—Re—Atari

tutorial/guide

(Atari) is a to many

features of the hardware and OS.

Mapping the Atari (Com—

pute! Books)

superb

find it memory map, and quite invaluable. Once you l

know the system, this book would be referred to more than any other. Tech nical User N otes (Atari) are the complete notes, including circuit diagrams, for the computer. You also get a full operating system listing and full OS documentation. The above books cover Sprites too, in great depth. There are eight, single colour, sprites (four large, four small), but these can be multiplexed and so forth ”on—the-fly".

The cheapest

ST, the

26OST, will be around £500.

Moi

then Control—Q and we're Oil-line. Have fun!

”colour gun" dots, and so as the TV turns off all adjacent thus it can't properly dots balance out the first colour with two others you get a

AWAQU

—

‘

colour bias. If you use a high resolution monitor the effect becomes much less noticeable.

However, the effect

avanaiii see

Page 61.

30 enlour /

AM looking for

book with this information

in.——

Shane Bradbury, Hartwell, Northants. 0 That's an easy one. Try Compute's First Book of Machine Code,in conjunction

system

with their Mapping the Atari three-

colour drawing dimensional Atari. for the system / have seen two advertised already, Atari World and 30 Super—Graphics. Both were advertised by Map/in in 7983, but when/rang them they had never heard of them. They are made by United Software of America. Do you know anyone who stocks them or is willing to order it? / have tried Silica Shop, ll/lap/in and Zoomsoft. Has Nigel anyone heard of it?

Books’, available (Compute! most good Atari specialists). Also recommended, but on 6502 machine code generally, are Rodney Zaks’ Program— ming the 6502 and Lance A. Leventhal's 6502 Assembly Language Programming. Don’t forget that with the last two a good book on the workings of the Atari is also essential,such as Mapping the

from

Atari, or Atari's own De—ReAtari and the Technical User Notes.

—

Mirza, Rainham. 0 Both Maplin and the Atari Center in Broad Street, Bir— mingham, have had these

titles in stock at one time or another, but if they have sold out. Perhaps Software Express can get one for you, as they Specialise in getting special order items in from the States. You may, of course, find that these items have been discontinued.

Banks on machlne code _

WOULD you please be so kind as to tell me where / could obtain a machine code book for theAtari, or the name ofa

Ma'lbag

s avulg data flles

—

actually be quite pleasing if you utilise it well. See Dave Russell's Graphics column in the October issue for a good example program. 13-Pin I/O plugs are quite hard to get hold of, but you

now

about your WE welcome letters from readers experiences using the Atari micros, about tips you and about whatwould like to pass on to other users in issues. see future like to would you The address to write to is: Mailbag Editor Atari User Europa House 68 Chester Road Hazel Grove Stockport SK7 5NY

can

could try Silica Shop or Software Express. As for monthly cassettes of AtariUser ro rams, these are

Logglng 0“ -

to M'Cf?llnk I

HAVE

Atari 800 com— 850 interface and a

puter, an WS 2000 modem. / have until recently used Hometerm software by Batteries Included to access bulletin boards. Two weeks ago I paid a subscription to MicroLink but on trying to use this excellent program on MicroLink l was unable to log on to thesystem.

lam howeverab/e to/ogon with my 52057 with the inbuilt software, so there is no problem with the modem. / have printed a complete disassembly of Hometerm

but

am unable to

find where

lWOULD like to congratulate you on your superb new magazine it’s about timeAtari users had their own pub/i-

cation. l recently purchased a 7050 disc drive and at the same time Microsoft Basic ll. However I can’t seem to save data files successfully, although I know you should use the OPEN, CLOSE and

the R3232 port is configured only a beginner at machine code. lwould be gratefu/ifyou or anyone else couldte/lmehow to correct thisproblem aslam reluctant to change this excel— lent program. —R.A. Homer,

as / am

Sheffield. Q We had exactly the same problem with HomePak as you seem to be experiencing. After trying other programs much less user friendly, bUT we easier to re-configure found the problem was with the PSS system, not with HomePak. What HomePak does in Ascii mode is to send a line

—

feed

after

every

Return

character. This causes Gold, and most other boards we have tried, no trouble at all. However PSS needs two

Returns with

nothing be-

tween, so the line feeds throw it off completely. The cure is to switch into Atari mode from menu, and whenever you ShOUld TVDe Return (at ends of lines, etc), just type Control—M instead. Once logged on, that is as soon as you have typed in your password, hit Control—S to pause the system, return to Ascii full-duplex mode, and use Control—O to restart

MicroLink. We have configured

defaults file on HomePak to start up in Atari mode, and stored a macro to do all the

work for

us.

All we then need to do once the macro is complete is hit Select (for menu).A(forAscii), Return (for main screen again),

I need EOE/522272525

to be able to do this for my 0 level

project

Might/suggest you starta page for classified advertise— ments which should also include the names andaddress D. Hanof user groups? _

sen-Luke Pulloxhill Beds . As fa'r as we, know Microsoft Basic II works fine as far as l/O goes although the commands arealittle different to those in standard Atari Basic There may be some problems when trying to use it with some DOS variations such as

DOS

perhaps your

problems lie there?

Anyway

aftervtrying with

another DOS you still have contact the Atari problems Helpline on 01—309 7770 '

Pr|nter

f or

l a b e Is

NEED a roll feed printer with ratchet for printing labels. l have an Atari 800 computer with disc drive and tape recorder, sol would like any available information about the interface and software to go with the printer. As it would be used to print /

labels and product information, the software

address must

be able

to store

the

necessary addresses and information ready to print. P.I.C. Gooch, Brighton. 0 Atari's own 1029 printer is —

__________> November 7985 ATARI USER

probably the cheapest avail— able with friction and tractor feed, and it has the advantage of

machine. it allows graphics printing, bUt is rather DOOHY supported by software. Print quality is OlllV fair, bUt it retails at about

£200. afford that little bit extra, pfObablY the beSt printers to lOOk at forlinking t0 ah Atari are the EPSOH range, especially the established RX 80 F/T or the new LX 80 near—Ietter—quality model With optional tractor feed. These are supported by a wide range Of software Wthh also allows YOU to print graphics. They use a Cen— tFOthS connection, 50 Will work With ”108t commercial Atari 850, printer interfaces Blackthorn, FCC Systems. It is really a case of horses for courses though, and if you find a cheaper printer fits the bill exactly, then buy it. The other thing to bear in mind isthat ifyou maywantto use a modem in the future try to get hold of an 850 module, because that has both serial and parallel ports. On the software side, a good database to try is Synapse’s SynFile +, which is not too expensive and is very versatile. It will allow storage to any density of disc drive, plus full |f YOU can

—

list/label options for your

printouts_ It is also driven by pop-up menus, which makes it very easy to use. .

connectlng .

prllltef

AM interested in buying a printer for my Atari 800. l actual/y require a letter quality printer, but the market for all types of printer seems rather /

limited.

There were virtually no adverts for printers in the ?rst issue ofAtari User. Please can you tell me what is available. Does anybody besidesAtari themselves manufacture printers direct/y compatible with the Atari bus? What is the specification of 58 ATAR/ USER

November 7985

—

DO you know of anywhere l could get a case in which to keep my Atari 800XL and

7070 recorder

—

for keeping

case I've

seen

them for a couple of other types of computer but not for the Atari. A dust cover isn't really protective enough, so at the

moment / have to use the enormous cardboard box in which it came, soacase would be really very useful. Also could you recommend a book for the 800XL which will actually get. me doing

‘things on it. At the moment I seem to use it solely for games, as my very basic 0 level computer studies doesn'texactlyprovide

It clean

much inspiration. Finally, a problem / have relating to the game Citadel Warrior from Atari Smash Hits

pute! series of Atari books are very extensive, and feature articles on many diverse aspects of Atari computers. We wouldn’t really recom— mend all of them for someone who is just starting with their

Vol. 3.

There seems to be some— thing in the program which stops itafterseven minutes, so how is it possible to get beyond the first part of the

second level?

—

machine, but you have obvi— ously got to grips with Basic already. They contain programs and tips on all sorts of subjects, and would be a good starting point for developing your own ideas. Contact any Atari dealer or mail order specialist for details of the range, which is quite considerable. Would anyone else care to comment on Citadel Warrior?

Deborah

Thompson, Nottingham.

0 We don't know of any cases for the 800XL plus recorder, but someone out

there probably makes them. If anyone knows of such an item, perhaps they could write in. As for books which get you doing something, the Com—

— the

connectorfortheAtar/bus,

that is what signals what pins as well

are as

the

connector type? Final/y, what are the disad—

vantages of connecting printer via a joystick port? D.A. Wilson, Reading. 0 Atari makes

letter quality

the 1027, but it is printer very slow and noisy. it does, however, connect directly to the Atari without an interface, —

which

saves

you

bit of

money, It is the only letter quality we know ofwhich can connect

directly to the Atari bus. Most types of printer Will connect via a Centronics type connector, and any computer shop will be able to show you printers which can do this. The bus is a special 19,200 baud serial interface, and can’t be linked to printers without a lot of extra circuitry to convert the serial signal to the parallel Centronics standard. You can buy such inter— faces, and there are about ha|f_a-dozen currently available from various companies— see adverts in this issue. You can connect a printer via the joystick ports if you write a machine code handler routine, but it would 0n|y work with,your own programs, say Basic listings, Any commercial software at all will expect the

allowed deto be created 0" a Graphics 8 screen, manipulated, rotated, ?lPDEd: etc. Routines were "10“!de for lines, circles, POlYQO'TS, overlays, moving blOCkS' changing the scale Of portions Of the design and three different text overlays. YOU C°U|d also transfer

be attached via the and it would be almost impossible to modify for joyStick port use.

a —

Master, Wthh

printer to

signs

bus,

Dr?Wlng

software know Of any technical drawing/drafting software which is available for the Atari 800XL? DOES anyone

Numerous

packages

exist

for the Apple and BBC computers Wh/Ch use the same processor, the 6502, as the Atari. The Atari Touch Tablet shouldbe an idea/inputdevice a program. The increasing use of CAD (Computer Aided Design} in engineering ShOU/d [VD/77019 a greater interest in this type of application on home computers, particularly those with the graphics capabilities of the

for such

Atari. Schools and technical colleges would also appreciate such an application no doubt.

Anybodygotanyideas?—A.c.

Chamberlain, Tunbridge

Wells. 0 We don't know of a specific CAD package for the Atari, but

Datasoft produced something called Graphic

very similar

portions

between

work

screens and the main design screen, and use a system of icons, for example electronic component symbols. Once drawn, the images created COU|d be stored 0” disc or printed on an Epson or NEC—type printer. It's quite an old program, but well worth searching for. If you can't find one see if someone like Software Express can import a copy for V0“-

Problem -

WIth BaSIG HAVE a problem with Atari Microsoft Basic V1.0. lhavejust boughta 730XE to replace my old 800, at the same time / receiVed my copy of 0032.5 with the Ramdisk utility. What / would like to knowis, can I use the Ramdisk with Microsoft Basic booted, /

———_—Moilbcig and how can it be done?

o The old MicroSoft Basic was recorded on a master disc

I," ff

—

/ /~'A ---,-

r, ,

4514.29.

"‘3

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?f”

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which included DOS 2.0 and then protected. This means that short of copying it to another disc and re—protecting it a complex job it can't be used'with a different DOS. However, Microsoft Basic 2 the cartridge can be used with DOS 2.5, as can Basic—XL

into the extra socket at the back of the last one, like a daisy chain. The best way to connect machines together is via the joystick ports. We hope to have an article detailing this technique in a future issue.

J‘WA

-—

George Lusher, Erith.

Data 0“ disc drives

)

you do decide to upgrade,

we recommend Basic-XL over Microsoft, as it features

almost all that the MSB-ii does, plus better graphics routines and memory man— agement.

M ore support needed

lHAVEa

1MiG/”£9 0 uy 9 if?ar/ CPg'Zggfe

TrOUb|e on “He 1020

adventures 3° ’ fan of typed/n Raider 7997 as soon

”(gm

Havrng only 76k / can tbuy so you can any adventures imagine my annoyance when/ got an error 5 at line 7020. Please tell me what C0_U/d YOU might be wrong With It?

think you should

CAN you send

my COPY oftheAugust

edit/on.

Also,

and/am

600)“

We“

have more

and competitions rewews. Andy —

software Latto, ‘Fife. 0 ve probably made a You typing error somewhere. Check line. 110‘ where B$ should

micro other than for theAtari. / 5m thankful for your .

excellent magazine from which/ will be able to send off for software. Why is there so little support for Atari computers thatare inaclass oftheirownil‘ Andrew Sharp ' Sale ' Cheshire. ‘ Support for Atari machines _

to be increasing all the time. Keep asking for Atari software in the shops and maybe they'll get the messeems

sage

Shorter programs CONGRATULATIONS on yet another excellent issue ofAtari User.

It is

pity, however, that ?t to devote letter

you see space to games scores. This is of sort of information interest only to its sender, usurping space which couldbe put to better use. Could you please at least ration the coverage given to this tedious andgratuitous ego

Interest your for putative con— ' ' ' tributors. While It must'be agreed that they are sensrble and well

thought out,.they

”DU/“ls? b?a”“’e’es”’.c""e'

whom

—

Pl“ outs

p I ease

a suggest/on.

800XL to another my 800Xl. room. / In the next know this IS pOSS/b/e but / don't know how. I would like to be able to ask a question on one 8OOXL and answer it on the secondonel/can'tsee any reason why/ shouldn’t be able to continue to add 800XLs ad infinitum. So how about an article for the technically minded ones of us that haveaso/deringiron.—

minor

effort provmg acceptable.Accordingly/have '

Could you not Inst/gate a regular Shorts feature? Sub— missions could be accepted in the form of listing + documentation, under the under— standing that any not used would be binned. / am sure that you would attract plenty of material, and so could be very choosy. The financial incentive need not be particularly high, and the extra workloadon editorial

staff

minimised.

Woodland,

—

Bruce

Harlesden,

London. 0 Submitting

anything

should only cost you postage both ways. Any disc or tape will be returned. The "shorts" is a good idea, but even they need to be typed in so they can

the

‘can give YOU information YOU requtre. We recommend the would 1050, as it can store more is more compact and data, qmeter. Otherw'se' there '5 "o Tea" difference between the drives

listed legibly and it be alltakes time a rare commodity around here.

Your ”is/319,709 on (1,30 or could result cassette support in a dearth of the very useful short program. Sure/y only the most fanatical or opulent among your would willingly shell readers. out a fiver on the chance. of

their

Waterlooville,

if you want details on disc drives is to contact either your local dealer or Atari in Slough, both of

be dimenSioned 20.

IHA

except that

few

very few,

old about five or Six programs WOUld ”Oi load correctly on the new drives. ——

VE/ustpurchasedanAtari

‘SOOXL It.

some

Hants. . The best thing to do

— W/th

details on the 7050 and 870 disc drives, The Thorn game Tennis does not seem to work on my 800XL. Why is this? Can / get acartridge orcassette that‘will get this game to work?— S.T.

Dunn,

farrfiirrfi arsysehvsrrjésh/oais 23/1; tripping? / andsoftware read Ataricomputers guide/mes for just about, every home

Can

and

am dew/{19d W/{h

youpr/nt theprnoutsm yourmagazme-aslam/nterested In

a dISC drive,

connect/rig and printer all at the modern

same time. / would like to run a lead to

connect

John Hopkins, Wisbech. 0 Pin outs are given in the

Technical User Notes, along with timing diagrams that you can purchase from Atari. However you can simply plug a disc drive, printer, interface for RSZ32, cassette and so forth into the machine at once. Each new unit plugs

New versuons of these titles been brought have, of course, stock out, but if a shop_has over two years old u could be suspect. The problem with Tennis is more fundamental —many Qld programs Will not work With the XL computers at all. This is due to the software houses not having followed Atari's guidelines correctly, so the program won't work on a new machine. Thorn/EMl Tennis is so old that we don't even remember it, but the best solution for a .

‘

cassette-based system is either XL—Fix or Computer 80 Column Pack. translator is good, but is only available on disc. The 80 Column Pack has the very useful side—effect of converting the XL operating

Support’s

Atari's

own

system

into

enhanced

version of the old Atari 800 one.

November 7985 ATARI USER

, af?ll'f far ?”

08W

f‘gr 3“

’

Here’s

‘

f"'v,..wff" ;,

.. »

5; '

e§§§§;;

s; s

is;

“

{ago

1’vn"§i

Keying

long programs

Then give your fingers a rest by sending for y isc or cassette containing all the programs om each issue 0 Atari User. See

————————-—' combination of colour, sound and animation makes this early learning gameawinner with the children. Sounds Interesting: Drive your neighbours potty with these ready-made sounds. Hexer: Enter, display and run machine code programs with this hexadecimal loader. Attack Squasthfast-action game to keep you on your toes. Reaction Timer: See how fast your reactions really are. Binary: Convert denary numbers to binary notation.

The

JUNE: Frog Jump: Guide the frog across road and river to his home in this version of arcade classic. 1300XE Ram Power: Use extra 64k of memory to good effect, or use

the the the the

drawing routines to produce some pretty displays. Scuttle the submarines. Etcha-

Submarine:

60 ATARI USER

November 7985

much

Filthy Fifteen happy in their cells?

JULY: Bomb Run: Flatten the deserted city and land safely. Disassembler. Find out what’s going on Atari. Treasure Hunt: Use deep inside your logical thmkmg to ?nd the treasure. Password Generator. Keep generating passwords ?ll you find one you like. Convert your micro Keyboard: into an organ. Quasrmodo: Can you sort outthe mess Of mpes in the belfry?

AUGUST: Assembler: Make machine code programming easier. Fruiti Gambler. Save fruit machine simulation. thisex patterns non?ylwiéhomp easy..Protec.an- alga. made om prying programs eyes, 89m] rated-38m emonstratron programs. Raider 153,75? '

's_t‘,

text adventure. Touch Tablet: utunstrc D emonstratron programs.

SEPTEMBER: Maze Munch: Help Horace the

To start the ball rolling, this month’s offering

too

Sketch: Draw pretty pictures with only a joystick. Random Numbers: Get random numbers from machine code. Filthy Fifteen: Can you keep the

Starting this month we are giving away an extra game along with the monthly cassette or disc.

£395

our mont

MAY: Alphabet Train:

Made in three $11,295}. Small 34 ‘36 36n'38" Medium 33.40" Larg e

The T-shirts are also on sale at £4.25. Please order on our of?cial order form.

g. .

users!

Worth £4.25, it will be sentFREE with every new subscription ordered on the form on the right!

This top-qualityT-shirt, woven in an attractive shade of grey with the Atari logo in red, is a genuine American ‘Fruit of the Loom’ product, made from 5096 cotton/50% polyester.

really

for all Atari

it;

CREE’SHOW,

a superb machine-

achore? £5.95

Blob munch the maze monsters’ morsels. Data Maker: Convert your machine code routines to DATA statements. Display List: Demonstration programs. Screen Dumps: Dump your Mode 8 screens to a 1029 printer. Bl’iCkS: Solve the Bricks problem. \

OCTOBER: Pontoon: TWiSt? BUS? Memory Dump: Examine memory in hex and ASCiiDisplay “St: Demonstration programs. Wrap Trap: AChO" game for one or two players. Computer Canvas: Make your OW“ micro masterpiece. Assembler Update: Improvements for the RAW Ram Disc: Make the most assembler. Of the BOXES extra memory. NOVEMBER: Guy Fawkes: Help Guy escape from the guards. Converse: Teach yourAtari tobe a psychotherapist. Display List: Demonstration programs. Bitwise Operators: Utility to provide logical functions. Circle: Draw and fill a circle. Plus: Freebie of the month Creepshow machine code pinball game. —

code pinball game which will keep you glued to your Atari for hours. And remember, you won’t find it listed in the magazine it’s only available if you buy the monthly cassette or disc.

lift?

—

/”9/if

to i

Back .,.

issues

my“:

”$3“

‘

“st

-‘;==

7,3

fa"

’

‘

”M

;

, '

I subscription

”

Commence with

£24,”

£175 Europe £2.25 Overseas Air mail

\\\\:&\‘ \“‘“

7008 7009

AUQ

Sept

——.——_

Monthly Cassette/Disc May issue: Profile of Jack Tramiel, preview of the new machines, Attack Squash, Adventuring, Alphabet Train, Hexer utility, Software reviews, Sounds, the 6502, Microscope, Atari Insights regular series of tutonals: Bit Wise, Beginners and Gra p hics. —

I |

of the 5205T, program protection

Fruiti Gambler, Assembler, Touch Tablet pro—

routines,

grams, ?rst look at Logo, Raider 1997, D05 25 upgrade offer, Display List Tutorial, Microscope, Software reviews a Insights regular series Of tutorials: BitWise, Be 91'nners and Gra p hics. 8—page September speCial on the 5205T, Mode 8 screen dump routine, Maze

Software

Munch, Data Maker, Display List

reviews,

Frog Jump,

Microscope, Sounds, Atari regular series of Insights _

tutorials: Bit Wise, Beginners and Graphics special 12 page feature on Communications, ,

issue. ' Disassembler Bomb Run, DOS 2.5, 17 Command— merits, Adventuring, Display List Tutorial, Software reviews, Power Functions, Treasure Hunt, Key-

July

’

board Sounds Microscope Insights Regular series of _

tutorials; Bit Wise, Beginners and Graphics.

August issue:

In-depth analysis

October Canvas

issue:

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Send to: Atari User, FREEPOST, Europa House, 68 Chester Road, Hazel Grove, Stockport SK7 5NY. Please allow 28 days [or delivery ,

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‘° d.

23"

AT11

November 7985 ATAR/ USER

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November 7985

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oi art The heart "It (the ST) uses the most modern technology that is the most powonul “tom“, in . mange "m gill” l, protmtoml |mprgu|of|," in lo row-m It rovuuri cowu‘nao WEEKLY May 23rd 1985 in a 23m ci urour'i‘d anla? emac"1:innea mintliars? e ops. I'll of at the lront epnd gr the queue to buy gr?" "The Atari ST is one or the most elegant Quinn: have seen an ongirill and elegant method or memory warm," JIM was reason“ coWTEl wonm Atari has usedwhich should makethasr taster than any other management “This machine is lipnl?canllv mom comm“ "W1 In IBM PC Pc on the market in any price bracket The “K dollar it it‘s possible to design . aura-lire winning machine. this is question ,; would go out and spend money ior one? To it." comma news which the only answer is 'Try and stop mel' May rtth teas mom 4°“ “mm" "My 19“ “imam” ‘ COMTING r... the use or GEM makes the new range or Atari computers so similar to the Macintosh (with the added lttrlctron or “The szosr iamcymiutly excellent The szosr hardware I! colour), that they are already being aired ‘Jackmtoohes‘ the new standard by vmtch omen irriii be lodged MI Y 2m 1m com J” “5 vourt co u E work one ol a

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SEND FOR FREE AIARI SI LI I ERAI URE -

be registered on our malllng Atari computer owner, or as a person let us [molested In buying an Marl machine, know. We will be pleasedto keepyou up to dale with new Alarl developmentsfree or charge. So, relum rho coupon today and begin experiencmg a specialist Ararl service that I: second to none. Ilst

SILICA SHOP LTD, 1-4 The Mews, Hatherley Road, Sidcup, Kent, DA14 4DX

ATARI SPEGIRLISTS ATARI “K's m“ ever the" ?rst dedicated

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as below: pauages 1) TOS -Tramiel Operating System based on CPM sex. 2) GEM Graphics Environment Manager by Digital Research (DR) giving a WIMP (Window. icon. Mouse. Pull down envtronment. DR GEM Paint lor DR GEM menu) 3) creating graphics masterpieces. 4) Write Ior word processing. 5) Logo learning language to enable you to write your own programs easrly using turtle graphics. 6) DR Personal Basic a power1ul user friendly version or the Basic programming 7) aos operating system giving you language access to dozens ol business applications packages already available on the market. in mind. the ST also leatures a host of di?erent Designed with luture expansion interlaces to the outside world and an impressive list ol accessories is planned. Atari will soon be releasing a IOOOK (TMB) ztva inch disk drive. and a 15MB hard disk storage system as well as a mass storage compact disk (CD) player capable of storing an entire 20 volume encyclopedia on one disk A luII range ol inexpensive printers are dot matrix and thermal colour printers. With its planned including dalsywheel unbeatable graphics, speed and software at a price which is far below that ol any comparable personal computer currently on the market, the ST is all set to do battle with the competition. To recalve luriher details ol the ST lrom Silica Shop. just ?ll in the coupon below with your name and address details and post it to us. Slllca Shop Prlcs: £651.30+ £97.70 var = £749.00 This price Includes:

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to Atari At Silica we have been successfully products appeared on the UK which we practice and to the user market. We can attribute our success largely to the Atari specialisation at a of Atari hardware Silica we Rest assured that when you Will be fully buy piece back-up provide, you supported Our mailings giving news of software releases and developmentsWill keep you up to date With the Atari market and our technical support team and sales staff are at the end ol the telephoneline to With our speClaIlst bias. we aim to keep stocks of. deal With your problems and supply your every need We also stock a wtde range 01 all the available Atari hardware, software, peripherals and accessories American Atari Atari dedicated books and through us. the owners on our list can subscribe to several as dedicated magazmes We can DFOVIde a full service to all Atari owners and are now llrmly established Here are lust some of the things we can oIIer to our customers. the UK's NUMBER ONE Atari specialists.

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"TrienewAtari 51 computers truly represent to the consumer what Jack TramieI is saying sasy-te-use computing power withoutthe price." mm, was mum couptmm; "The electronics in the machine are or the 5205? la a Motorola some.

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Name '

Ava11ab1efrom your ST-Dealer

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Kuma Computers Ltd., Unit 12, Horseshoe Park, Horseshoe Road, Pangbourne, Berks R68 7JW.

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