ZXComputing_Feb_1987.pdf

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FEBRUARY 1987
£1.50
AN ARGUS SPECIALIST PUBLICATION
FOR ALL SINCLAIR USERS
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Screen shots taken from various computer formats
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REGULARS
NEWS: Opus halts Discovery Disc drive production.
4
ACROSS THE POND: U.S. news.
18
DISCOVERY COLUMN: More routines sent In by
Discovery owners.
24
QlL
COLUMN: The latesl on the QL*s survival course.
35
CROSSWIRE: Readers' technical problems.
49
SHORT CUTS: Readers' prize-winning routines.
50
CROSSFIRE: Letters page.
71
RANDOM MEMORY: Programming advice from Clyde
Bish.
72
PAGE $1: More from the last outpost of the 81 with Ray
Elder.
81
FEATURES
ilLUMiMATOP
Adding decorative touches to
Illuminated text.
12
UJ
THE FRIENDLY PROGRAMMER:
Crashproof programming
by Alan Davis.
20
THAT'S THE TICKET:
Carol Brooksbank on the creative
use of screen dumps.
28
EXPERT SYSTEMS
Can you give your Spectrum or QL
Artificial Intelllaence.
32
A BACKWARD GLANCE AT UTILITIES
Alan Davit
assesses the long term performance of some
established utilities.
36
FIRST STEPS IN MACHINE CODE:
Some of our regular
writers tell how they started learning machine code.
52
STREAMS AND CHANNELS:
Ton! Baker continues to
explore the windows channel.
75
TECHNICAL GRAPHICS:
A look at elementary 3D
graphics with Toni Baker.
78
COMPETITIONS
DEATH OR GLORY:
CPUs latest space epic Is Up for
grabs.
17
FOOTBALL FORTUNES:
Win a copy of C D S * new
football game.
31
t
PROGRAMMING PROJECTS
SPECWORD
The second part of our mega word-pro
program.
42
KINGDOM O f K U U :
An adventure to type In on the
Spectrum.
60
PULL DOWN MENUS: Tonl Baker shows how you too can
add flash menus to your programs!
66
'M
l
•
Aliens (54)
SOFTWARE REVIEWS
SPECTRUM:
Aliens, Stargllder, Marble Madness
. . .
Short reviews begin
. . .
38
S
Starglider (46)
MINDPLAY: CRL's Dracula and The Colour of Magic
among this month's releases*
56
UPGRADE ART: New versions of The Artist and Art
Studio reviewed.
85
3
ZX Computing Monthly
*
February 1987
*w
*
Opus axe
Discovery
Opus
hove
ceased
production o( Discovery Disc
Drives for the Spectrum. A
spokesman for Opus said. "It's
purely a commercial decision.
We are now getting involved in
larger more lucrative markets
such as IBM and these are
taking up all our available
resources We shall of course still
be giving technical support to
existing owners."
Opus say they have no
further
stocks
available
although some dealers may
have limited supplies. An
estimated 15,000 Discovery
Drives have been sold since its
introduction.
It is not known whether
another company is to step in
and continue production of the
Discovery.
s
Macho Man
Dan Dare
Winners
The lirst prize winners ot the
Dan Dare comptition are
Maurizio Cunningham Brown
from Henley in Arden and Gerry
Galloway of Liverpool. They
receive a copy of Virgins Dan
Dare book. The Man Who Drew
Tomorrow, the lite story ot Dan
Dare's original illustrator Frank
Hampson.
A further 25 entrants win a
copy of the game.
They are:
R.Douglas. Mostellssveit,
Iceland; Paul Sullivan, BFPO 43;
Richard Hockey. London E18:
BAtkinson, Darlington; T.Yau.
Cardlfl; A.Hawscroft, Manches-
ter; QOrunsun, Stoke; M. Kemp,
Wesferham; N.AImond, Coven-
try; E.Bennet, SW11; T.Miller,
Staines: RDodsley. Nottingham;
DJ-Morgan. Swansea; BHerwig,
Kortenburg, Belgium; A.Siddal.
Chesterfield; M.Watson, Darwen,
TWitt, Galhampton; L.Voort.
Leiden, Holland: CRenders,
Farnham; P. Marl, Chester;
C.Womack.
Northalerton;
G.Shimmings, St Leonards;
R.Jones, Belfast; I.McVicar.
Clydebank; G.Darlington, Liver-
pool.
Advance Software are to follow up their Hardball conversion
with two new titles. Indoor Sports is another conversion — a
collection of Darts, Ten Pin Bowling, Blow Hockey and Ping Pong
all on a single tape — and is due out in February for £8.95
Butch Hardguy is meant to be a sort of Ram bo spoof in which
the aforementioned Butch has to free loads of POWs from cells
on 20 different screens. The price of Butchness is £7.95.
Colossus 4 Chess program.
They are;
Rob Ramshaw, Tynemouth;
Jim Feltham, Morden; Mark
Teeger, London NW6; D.French.
Margate: Mike Looseley, Har-
mondsworth; P.Lanft, Bad Vllbe,
W.Germany; Paul Hargreaves,
Brendford: De Meester Bart.
Bambrugge. Belgium; John
Cliflon, London SE3: CS.Evans
BFPO 45; S.Deering, London E1;
N.P Powley, Kings Lynn; J.JCarr,
Cambridge; G.Havenhand,
Sheffield;
Brian
Taylor,
Scunthorpe;
J.Scherphuis,
Boschen Duin, The Netherlands;
R. Addiesee, Leicester.
Chess seems to be a
popular pastime among
ZX
readers juding from the large
number of entries for our
Colossus
4
Chess competition.
Almost without excepllon every
enlrant deduced the correct
solution to the chess problem —
whites move was King C7—C8.
Now 20 winners will be able
to wile away the long winter
evening locked in intellectual
combat with CDS's excellent
Colossus 4
Chess
winners
Editor: Bryan Ralph
Assistant Editor: Cliff Joseph
Consultant Editor: Ray Elder
Advertising Manager: John McGarry
Design: Argus Design
A.S.P. Advertising and Editorial
No. 1 Golden Square, London W1R 3AB 01-437-0626
Printed by Chose Web. Esiwer. Plymouth.
Advertisement Copy Conlrolet: Andy Selwood
Distributee) by Argus Press Sales and Distribution Lid, 12-18 Raul Street. London EC2A 4JS
ZX Computing Monthly is published on the tourth Friday ot each month. Subscription rates cn be obtained <rom ZX Subscription], inlonet. limes House.
179 the Marlowev Hemel Hempsieod. Hem HPS1 1B6
The contents ol this publication, including all articles, designs, plans, drawings and other intellectual property rights herein belong to Argus Specialist
Publications Limited. All rights conferred by the law ot Copyright and other intellectual property rights and by virtue ol international copyright conventions
ore specifically reserved to Argus Specialist Publications limited and any reproduction requires the prior written consent ol the company
Argus Specialist Publications Limited
tW
7
4
ZX Computing Monthly
*
February 1987
Ocean's trio
As well as their heavily hyped Christmas biggies, like
Cobra and Top Gun, Ocean have also lined up a few
other games with a bit less accompanying lanfare.
Legend of Kage is yet another martial arts type smash
'em up, while Double Take Is an odd sounding game
involving cyclotrons and alternate dimensions and, of
course, a healthy dose of violence. Then there's the coin-
op conversion that we've all been waiting tor . . . Donkey
Kong. Call me a cynic, but I cant help thinking they've
missed the boat with that one.
Spectrum Games Top Ten
1 ( 7) Trivial Pursuit
2 ( 1) Computer Hits 3
3
4
5
6
7
8
9
10
(
(
(
(
(
(
(
(
)
)
6)
3)
)
)
)
4)
Domark
Beau Jolly
US Gold
Electric Dreams
Ocean
Elite
Elite
Ocean
Imagine
US Gold
Gauntlet
Aliens
The Great Escape
Paperboy
Space Harriers
Cobra
Konami's Coin OP Hits
Infiltrator
(Chart supplied by W.H. Smith)
Trivial Pursuit
Robert Burgess of Rotherham
battled bravely In the tinals of
Domarks Golden Trivia Chal-
lenge, held in London. As ZX's
representative, Robert, narrowly
missed getting Into the last six
by the odd wedge. Although
Robert was not destined to
carry oft the £10,000 solid gold
Trivial Pursuit Set he did take
home the new Genus 2 Edition
of the game as a runners up
prize.
War in Orbit
Quicksllva's latest game, Defcom, is all about the
American Strategic Defence Initiative (SDI). The game
has the orbiting weapons system taken over by invading
aliens who decide to use it for their own purposes. Only
you, in the role of heroic Nick Diamond can save the
Earth, assuming that you've got £6.95 to spare to get you
started.
ZX B MX
We probably shouldn't admit It but the Commodore
version of BMX Simulator released by budget software house
Codemasters was one of our recent iunchtime favourites.
Imagine then the breathless anticipation with which we
await the arrival ot the Spectrum version. With a track full
ot ramps, banks, whoops and burns there are all sorts of
possibilities for cycle mayhem and all you need to Join in
is £1.99.
Sounds familiar
?
Masfertronic have got a new
iame lined up called
erminus. It's a massive
arcade adventure with lots
and lots of screens and you
have to guide your cute
little sprite past lots of traps
and aliens and (stop me if
you've heard this before...)
ENEMy
CLOSE
TO
SINGLE LRSER
DOUBLE LASER
RQCKET^LflUNCH
GRRPE SHOT
SCORE ON O f f
V D U ON OFF
HI
66286

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