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kfflm 



m. 







INSIDE 



Programs to 
type in for: 

ZX81.BBC, 
VIC-20, 

Oric-1 



Software 
reviews for: 
BBC, Dragon, 

Spectrum 



COMPUTER 
S EX STORM I 

MTMJ!N:l!U"I^IIUl'« 



New factory for new micro 



■a "cdlti □[ peripheral*, 
1r Boyd. .13. wid: "Poten- 



• ARCADIA* 

• SCHIZOIDS* 

+ WACKY + 

WAITERS 

Three 
mind benders 




C] LlK.'sRfiriQ€OF 

^OURLITV SOFTUJflRe 
TOG 



B 



MODEL A/D 

I: Stat Trek/Candy Floss (very popular) 
68.80 

Cassette 2: Family Games (hours ot f un) £4.50 
Cassette 3: Mutant Invaders/ Breakout C6.50 
Cassette 8: Model A Invaders (M/C( £5.50 

I* MODEL B (or A+32K) 

Cassette 4: Beeb-Beep (Super Simon Game] C4.50 

Cassette 5: Beebmunch (full colour Munchman) 

£6.50 

Cassette 6: Super Hangman (animated, educational! 

£4.80 

Cassette 7: 3D Maze (fast and intricate) £4. SO 

Cassette 12: Flags (Countries and Capitals) E4.50 

■i* CASSETTE 

Contains model B Invaders, A superb feature 
adaptation of the arcade Space Invaders' game in 
machine code and hi-resolution colour graphics for 
the BBC Micro model B (or A+32K). Play normal 
game or choose from the many options including 
Missile, Bomb and Invader speeds. Invisible Visible 
and Shields no Shields. Quite simply the best. 
Only £7.50 far MODEL B (or A+32K) 

i» CASSETTE 10 

WORDPRO, Cassette based word 
processor for either Epson or Seikosha 
printers. Features right hand justifi 
alter, insert, delete, pages to tape, printer 
mode changes from within text line etc., 
etc. Complete with manual. 

Only £10.50 inc. for MODEL B 

(orA+32K) 

n» CASSETTE 11 

ATLANTIS. The superb last action arcade 
game written in machine code to illustrate 
to the full the machines fantastic colour 
graphics and capabilities. This game 
includes all the usual ATLANTIS/ 
SCRAMBLE features. Guide your 
submarine Nautilus along the undersea 
landscape and through the caverns 
avoiding mines, depth charges, rockets, 
jelly fish, serpants etc. 
Only E7.50 inc. For MODEL B 

(or A+32K) 



m CASSETTE 13- HYPER DRIVE 
A new, very addictive machine code arcade game. 
Guide your laser tanks around the network of 
passages destroying the drone Aliens - but beware, 
evil OTTO lies in wait! 
Only £6.50 Inc. For MODEL B (or A+32K) 

• CASSETTE 14 -STRATOBOMBER 

Another new highly colourful machine code arcade 
game. Can you keep the enemy fleet at bay long 
enought to destroy the nuclear reactor of the rogue 
Star Ship before it destroys your home planet? 
Superb graphics. 
Only E7.50 For MODEL B (or A+32K) 

^tlN CASSETTE 15 - LEAP FBOG 

The fabulous 'frogger' arcade game reaches the BBC 
micro. Superbly written full colour machine code 
version for the Model B [or A+32K). Help the frog 
cross the road avoiding the vehicles travelling at 
different speeds, and cross the multi current river to 
reach the safety of the lilly pads. The game gets 
progressively harder- perfect for arcade addicts. 
Only E7.50 for MODEL B (or A+32K) 

J>° f - ■ /// =r ,?-6.f 



WE'RE EXPANDING 
TOO...NOTEOURNEW 
OFFICE ADDRESS AND 
CUSTOMER SERVICES 



. ORIC MICRO software ready 
''soon. Write or 'phone for 
availability. 

• All Programs will run on all 
operating systems 

• All software in stock before w 

■ Send SAE for Brochure 




9 King Street, 
Blackpool, Lancashire 

©(0253) 21555 Fl 



ALL PRICES FULLY 
INCLUSIVE OF VAT AND 
P8P-NOMORETOPAY! 



L COMt'LTlNG WEEKI ¥ )V April 1 98.1 



APRIL 19-25, 1903 HO. 7 










game, Westward Ho. has been 
modified. She does not get 
roped. . , she entices ihe soldier." 
Among the range is Caihouie 
Blues, "iih prostitutes, muggers 
and gra pi i it lied mum scenes; Ph il- 
ly Flasher and iis female \ersion; 
ing Desire and Jungle Fever. 
lich a male or km.tk \ictim 
ards" a rescuer after being 
saved from being burned alive; 
Bachelor Party and Bachelor-etie 

and missiles are replaced with peo- 
ple. 

Even Westward Ho hasa ver- 
sion called General Retreai where 
the roles are reversed. 

Mr Pickard said; "I came 
across rhem in the Slates and [ 
thought: what a good idea. Now 

market them here and in Europe. I 
knew I was going 10 run into pro- 
blems, but I don't think they are 
insurmountable. 

"Children are not in the 
market. We are dealing with an 
adult market. They are Ihe son of 
ihing you would get our after a 
dinner party or after a night at the 
pub and have a good time. 

'•You would see a lot more 
on the adull video films. 

Mr Pickard saidhehad taken 
legal advice before dividing m br- 
ing in Ihe cartridges. He experts 
his first shipment 10 arrive before 
the end of ihe month and plans to 
show them at a trade exhibition 
next month. 

He said: "Until they arc on 
the market people like Mary 
Whilehouse can't sue us. They 
can't make a complaint unless 
they have purchased the goods. 

"In no way do I find the 
games obscene. 



all.iiiey.- 



:Kilh 



But I would expect them 
lo beoutofthe reach of children." 

Mr Pickard said he was 
writing to Mrs Whitehouse to in- 
vite her to see the games — "or I 
will take them to her." 

A spokesman for Mrs 
Omiitiiii't! in column 4 


















Two People's View 


8 


Dragon software reviews . . . 


9 


ZX81 program 

ni,i p:i;ik- iiLiLiiisi ihe enemy fleet 


12 


software reviews 


14 


Spectrum program 


16 


Atari programming 


21 


Spectrum software reviews . 


.23 


Profile: Romik 


26 


Tunc in lo more characters 


29 


Oric-i program 

Climb on your Light Bike. . . and go 


33 


vic-20 program 

Make a dale of it 


38 






Cool cure for a warm micro 
















Ron Ha™ B,idg«wSI»rlik« 


Argus Special] si Publications Ltd. 
145 Charing Cross Road, London WC2H OEE. 01-437 1002 





Q QUEST 
IS HERE! 

TURN TO 
PAGE ... 7 



Viewers' and Listeners' Associa- 
tion . con fi rmed t hai she had asked 
Claclon police to investigate and 
to see if any Customs and Excise 
law win being infringed. 

She said: "Our eonce 
with young children and 
availability of pornography and 
Ihis is another means of making 
this sort of thing available. 

"We could run cmtimci 
these games because we havi 
seen litem but if the police think 
they break the law they would for- 
ward the case io Ihe Director of 
Public Prosecu lions." 

In a strongly-worded t 
mem, thedirector of the NSPCC, 
Dr Akin Ciilmour.said he was lie 
rifiedtohearoflhe plan to market 
"pornographic" video games in 
this country. 

careful parents are, ihere is the 
very real danger that children will 
gain access lo these 'games' in the 



lln-s,i-,:ilk-d u 



"The view of sex portrayed 
by such ghaslly offerings can 
a child's mind for life. 

"In addition to protecting 
against physical cruelly, ihe 
NSPCC has a responsibility for 
children's morals. 1 will be 
couraging lhat responsibility by 

Home Secretary. 

"I hope that he will t; 
rapid action io ban, or al k 



ORIC PRICE RISE 
Tangerine raises price of 
delayed 16K Oric-1 bv £30 
£129. Or ic Prod nets' price 



Tangerine's d iscount fot 
< Orics sent on loan to 
customers ordering 16K models 
IO per cent. Oric's 
it will be 25 per cent, 
series of 1 6K machines 
:o be ahead of schedule, 
says One Products. 

WEEKLY 19 April 1983 Page 



Our winners 
and answers 



Congratulations, 115 times 
over, to the winners or the com- 
petition in the first three issues 
of Home Computing Weekly. 

And, if you are not among 
them: watch out for more big 
prize competitions in HCW, 

The senders of the first 15 

large boxes will each receive a 
48K Spectrum, a ZX printer 

The total value of each prize: 
about £250, 

And the senders of the next 



100 cc 

£25 i 



from Qtiic kj.il v; 
If y. 



ies will each gel 
for programs 






should be deli 1 
your home within 28 days. 

Many entrants answers all 
the questions correctly, but a 
number stumbled over two. 
Question five in issue two foxed 
some people, probably btumist 
Peter Toolill had two article. 1 , in 



that is 



:. The a 



large type 
bulletin boards. 

Question four in isMiell 
was wrongly answered by sc 
because, it .seemed, ihey did 
read to the end of the arti 
The last paragraph began: 
starts the New Y 



2 HMS Saraccr 

3 AIS05) is thi 



NEWS 



420, p36 

p22 

5 UmiciL-v 



Spectrum Winners 

w. d. James, I Crowbuid w 

I-'urmbv. 1 iverpocl L37 8BR; 1 
Prince, Tiercel. 4 Winfred Ro 
SeUbcrgli, Cumbria LAIO $A 
Harold J. Kinney. 98 Qtiim 
Park, Uicvle.rnorc. Covenlrv C 
5HY; W. P. Rattle. 62 Edwi 
Road. West Bridgford, NoiiLngh 
NCi 2 Still; Miranda Ellis, 9 K- 



Healh, 289 Bud 
Whiileigh, Plymoul 



PLS 5JE: 
.11. 36 Sun- 

,k. SI. 7 'lit : 



n CH 9SG: D. J. Long, 
rd Brow, Hollins Green, 
m. Cheshire WA3 6JL; 



Software Winners 

Ivcr Hack ham. Grey Lodge. 
liuMiu.ck-,. Durham DHI 4LH; 



4QJ; Oris Hughes 
Road. Sherwood. Not 
2LN; J. V. Cook. : 



Ziebicki, 25 Harris 
View, Widnes. C 
OTP; L. A. Freem 
Lane, Northgate, < 
Sussex RH10 2JP: I 

Kcithlcy. West ¥o 

dost, Bar well. I 



I L. Has lam. Flal 



Road, London W14 SBB; P. E. 


Road. SHeringham. Norfolk NR 26 




SHU; Leonard Millloney. 59 Cedar 




Road. View Park. Ayr. Scotland 


Cm, 54 Cherry Way. Hatfield, 


KA7 JPG; Jispal Andeh. 106 


Herts ALIO. 3LE: Paul Murphy. 55 


Gadsby Street. Aitlcborough 


Fields Road. Leplon. Huddersfield, 


Nuneaton Warickshire CVI1 4NZ 


West Yorkshire HD8 OHQ; 




Howard J. Malyon. 198 Prospect 


Inn, Stockton, Nr Fordingbrigde 


Road. Farnborough. Hants GU14 


Hams SP6 2HF. F. Goodyear, 39 






Close. East Finchley, London N2 


BAI2 8EY: Simon Jeflerr, Ledrah 


01.1.; P. M. Bennie. 122 Mildmay 






Conmall 1'I25 5HG; 


Mrs L. Clinch 1, Lavendon 


Derek McLaughlin. 122 


Rectory, Lavendon, Nr Olney, 


Si rat hern Road, West Ferry 


Bucks MK46 4EX; Paul Douglas. 


Dundee DD5 1JW; A. J. Wallace 


11/21 Maxwell Oval. Pollokshllds. 


41 Aleiander Crescent, Oakham 


Glasgow G41 SST: R. Ormtrod. 12 


Rutland. Leics LE1J 6LA; P 



Road, Car shah on Beeches, Surrey 
SM5 3NG; 

K. A. Beck, 37 Cartridge Cres- 
cent, Ryccroft, Walsall, West 
Midlands WS3 IQY; Keith 



8EU; Wing Wall Fan, 65 Adswood 
Lane West, Cale Green, Stockport, 
Cheshire SK3 8HZ; A. P, Berry, 
Flat 5, J7 Brighton Grove, 



Antrim. Northern Ireland BT38 
9QQ; Oswyn Mowbray. Glanrafon 
Stores, Tyn Lon, Holy Head. 
Gwynedd, North Wales LL65 3AX; 



7NU: Mark Wignall, 
Road, Tottenham, l.i 
6RP; J. E. Elheringlon 



Main Street. Cononley, Keighlev, 
North Yorkshire BD20 8LJ; Aghu 
Rahman. 98 Shakespeare Road. 
Acton, London W3 6SN; E. H. C. 
Holland. ! Prospect Cottages. 
Bough tun Alupli. Ash ford. Kent 
TN25 HJA; Don Weeraslnghe, 21 

London W12 0LU; Smart Paiion. 
10 Lord Street, New Silksworth, 
Sunderland, Tyne and Wear SR3 
2DX: Shetagh Duifv, 40 Pemertof 






S022 



6JT;lanArchbold.3ShirlevClose. 
Stevenage, Herts; Rouen Andrei 
Firih, 1 Old Guy Road, 
Queensbury. Bedford, West 
Yorkshire BD13 1JB: C. Robert- 
shaw, 3 Chanel Streel, Thornton, 
Bradford, West Yorkshire BDI3 
3JR; Gam Knight. 30A Stanton 
House. Thames Street, London 
SEI0 9DJ; Graham Hooper. 31 
Purccll Street, Longsight, Man- 
chester MI2 4NU; J. P. Kelly, 159 



Manchester M35 0GR; 
UK, 53 Harlech Road, 
4 7BY; A. J. Cook, 50 

17 BELT; BUI lo'nglev. 



Cailii 






Essex CM 4EX: Pbilii 
Potltr; Grey 

Busbridge, Godalming. 
GLI7 IPL; Graham Malum. 95 Kid- 
brooke Grove, Blackhealh. London 
SE3 0LG; Alec F. Hemingway. 26 
Wheelwright Avenue, Lower 
Wortley, Leeds, Yorks LS12 4UW; 
M. D. Trow. 19 Weathercock 
Lane, Low Fell, Gateshead. Tyne 
and Wear NE9 5JD; Kevin Page. 
Monuose, Angus, Scotland DDI0 
9BH; Juhn Chopin. 91 Queen 



Road 



HOME COMPUTING WEEKLY 19 April 1983 



U.S. SCENE 



Memolech's home micro is 
expected to appeal to users in the 
BBC and Commodore 64 
bracket. Mr Boyd said: "It's not 
:!■:!.- cheap market." 

Measuring I9in wide, 2 Win 
high and Sin deep, the aluminium 
casing — coaled in black plastic 
- will house 32K of RAM, I6K 
of video RAM. a 16K BASIC 
ROM with a Z80A processor run- 
ning at 4MHz. 

The Micro so ft -compatible 
BASIC Bill have extra graphics 
commands - [here Bill be 26 
reserved graphics characters — 
and a Logo subset. There will 
also be a screen handling 
language called Noddy and an 
a.-semhler ■■'disassembler also in 
the ROM. 

The keyboard has QWER- 
TV typewriter keys with, 
alongside, eight function keys 
and a numeric keypad, which ac- 
counts for the 19in width. 

Centronics-type printer in- 
terface will be standard and there 

two joysticks and others, and a 
slot for cartridges. 

There will be six spare slots 
inside to lake Memolech's 
boards, like extra money — at 
32K. 64K and 128K per board - 
to a maximum of 5I2K, the in- 
dustry standard CP/M operating 
system used by most business 
micros and a disc controller 
board which will run up to four 
drives, including Memolech's 

Software has often been 
slow to follow the launch of new 
computers; would the same hap- 
pen with Memolech's micro? 

Mr Boyd said: "We are tak- 
ing care of that. I thing people 

75 per cent — playing games on 
our computer. That, of course, 
will decrease as people start pro- 
gramming bul at the launch we 
will have 25 cassettes available. 
Most of them will be games, but 



rkmg c 



l software and the 

Memo-text cartridges would be 
available for ihe new computer. 

The two men leading the 
design team are Mr Boyd, who 
specialises in hardware, and his 
friend Robert Bramon. They set 
themselves up as a partnership 
and now both are directors. 

Memotech was formed 18 
months ago and employs 65 staff 
in Witney and a smaller technical 



ford. 



Win 



employees are working in por- 
table buildings while the com- 
pany's new factory — due to be 
completed in August — is finish- 
ed, ll is here thai the new micro 
will be made.' 

"Within a month of produc- 

month," said Mr Boyd. "By the 
end of the year we will be well 
ahead of the market in terms of 
being able to provide peripherals 
— unlike some other corn- 



No price has yet r> 






and this will be reflected in oui 
pricing." 

He expected the computer K 
be priced in the Commodore 6 1 
and BBC micro range. 

Mr Boyd added: "We don'' 
want to be pushy and say we'l 
sell 200,000 in the first week. It': 
a good machine and it will bt 
Ciimpi'Siiively priced." 

Memotech, Station Lane 
Witney, Oxon 0#8 6BX 



Spectrum 
'success' 

Sinclair Research believes it has 
now replaced nearly all the faulty 
power supplies sold earlier in the 
year with Spectrums. In most 
cases, said a spokesman, they were 
turned round within 48 hours of 
arriving at a specially-opened 
warehouse. 

great enough to ensure sales of 
Spectrums were not hit through 
sending of replacement power 
supplies. 

Recalled power supplies only: 

Sinclair Research, Unit F. Broad 
Lane, Coltenham, Combs CB4 
4SW 



Ancient to 
modern 



Barnwell School. 



Stephen Booth, 17 Park View 



computer 

Whiz Kids to 

star on TV 

it Had to Happen Dept. Hooray for Hollywood — one of the 
three American television networks. NBC. has just 
produce a pilot for a TV series called Whiz 




tempt to show possibilities u Hide 

if what is currently happening, but still within the realm 

a! feasibility. I'll keep you posted '. The pilot should be done by 

laic Arrii and. ij puked up as a scries, will siarl in September. 



»•»■»•»■*- 



I now jtu .some new games. CrealiveSoft 
nyvale CA 94086, is marketing a line of games for the VIC-20 at 
1 Atari 400 and $00 machines. Their representative lells me th 
ailablefrom Audiogenic, of PO Box SB. Readin 

ing aline 10 the/nit::, in Sunnyvale a line will result in m. 
lalog anil further information. In addition to gam 

with titles '.inhu.sAsirnhlitz, Black Hole. Trialiman, City Bomberund 
Minefield, and Apple funic, (.'retime aisooffers mure useful programs 

such as Cor Costs, whit It helps run keep nut I: id auto expenses and 
inaiyse its performance: I nun Analyzer, in help fun tlixide what sort 
>! loan you need, and what u .silt cost :ou: Home Inventory, which will 
help you catalog vour poses'inns, and other lunar up/ilicaiions pm- 
zramssueh as Decision Maker, Household finance . and l lame Office. 
they offer juur educational /'rostrums: llaiti'iitaii- 
HangmathformuihsdrdlstMaili Itiiidler-Monster Maze: Spills A fills 
(leaches quantities): and Pipes tteih hes hasir economics). 

Prices seem \;n reasonuiilc. Most ,,j the pit warns are available 
■jssetle and tape with a few on cartridge only. 



1. est ZXHI owners tee! kit nut. tins twin is lor von. Available fro' 
Softsyne lite, of 14 East 34th Street. Sew York. Sew York 10016, 1212) 
685-2080, a a fine line of games, programs, and utilities on cassette, 
to mention off ordini: van the opportunity of owning your own Uncle 
Give T-shirt. What a thrill, and only S.5 .95 (cheap).' 

Most of the pntiirw-s in the eataioiute. whieli they will furnish 
free if you enquire nicely, fall into the a 
edueaiinnai. t'tnaneial, personal, andgat 
in stratezv, arcade, and adventure. 

Of particular interest is the graphta kit 116X514.95/ which muk 
available 2} assemhtv iun,t : ua::e routines which mil can use lo drc 
multi-character shapes, and/or to add other graphics dimensions 
your programs such as borders. The program loads into the lop 2X of 
memory and automatically repositions RAMTOP so thai 
grams will not overwrite it. 

Theedueiitionalprogramscatertothefour-Uagegrot 
a combination of clever graphics and text display to enteral, 

n the use of the alphabet, numbers, roivels, and spelling. Most of 



See you here next wee! 
Bud Ian 
Fairfield, California 



HOME COMPUTING WEEKLY 1! 



Continued front page 4 
Hope, Essex SS17 OJrV; Gmh 
Roy Hannlngton. Cara-Mia. 2 
Rayleigh Road, Thunderslt 
I:\sev; Warwick Jones. 18 Beverl 
Hyrsl. Addiseombe Roa 
Croydon. Surrey CRO 6SL; Juir 
Wrlohl. 22 Collhill CTcsa-m, V 
Timber. Aberdeen ABI OEF: 
M. Long, 28 Law Streci. W, 



IDZi l>. I 



, West 



,'I.CIld.,M. ] ..union SW.l iSH; 
ripping. 15 Lie I ilk- 1 J U,..kI. 

■: >u-|iht-.i link. II <A>n:rdak\ 

13 7L.Z; W. K. Ci.lii.i-. 11 
lheulog. Pcnyaacr. Llanelli. 
:d SA14 8AF; Ali-n.ir Smith. 
?. I" Uaiioiivillc Road. Edin- 
:li, San land HH7 SUB; Peter 
*», « Woodland Vitiv. Sirai- 
Smn-k'«, Nnrn-k-li, Norlnll 
OSLT; 

Slcwirl Cunning hum, 16 Ben 
c Avenue. Haa-khKid l : M:ilt. 
luv.Si:<illijjidl*A2 7NL>:Sti;«i'ii 



Cut-price 
Spectrums? 



Rumours have been spreading 
among computer retailers that 
Sinclair Research is about to 
slash (be price of its top-selling 

But a spokesman for [he 
company said: "I can't really 

The talk has been fuelled 
by the planned launch of the 
Spectrum in America within the 
nexl four weeks, because Timex 
is pricing its version, called the 
TS2000, at S149 for Ihe model 
with !6KofRAM. 

The UK price for the same 
model is £125 — roughly £25 

Most UK Spectrums are 
made by Time* in Dundee 
where workers at one plant were 
staging a sit-in last week. 

However, the plant making 
Spectrums was unaffected. If 
the sit-in lasts beyond the 
workers' holiday period it may 
eventually affect the gearing up 
of a production line which will 
manufacturer flat-screen TV 

still no date fixed for the launch 
of Sinclair's new Microdrive 
mass storage devices. 



Top Twenty programs 


for the Spectrum 




1 Schijoids 


Imagine (-) 




2 Penetrator 




16) 


3 Escape 


New Generation 


-> 


4 Galax ians 

5 Arcadia 


Artie (-1 
Imagine (15} 




6 Planet of Death 


Artie (16) 




7 Avenger 


Abacus (—1 




8 Nightflight 


Hewson (13) 




9 Planetoids 


Psion (-) 






Richard Shephe 


1(3) 


11 Chess 


Psion (-) 




12 Ground Attack 


Silversoft (-) 




13 Orbiter 


Silversoft (-) 




14 Muncher 


Silversoft (-) 




15 FlightSimulation 


Psion (12) 




16 Hungry Horace 


Psion m. House 


10) 


17 Space Raiders 


Psion (-) 




18 Gulpman 


Campbell (-) 






Sunshine Books 


-) 


20 The Hobbit 


Melbourne Hous 


ID 


Compiled by W. H. Smith. 


Fkumtotoctm* 


wto 



Bored? vou 
shouldn't be 



Graham Tillotson, whose 
company has just made a survey 
of the market, said: "it's not 
only my view, it's the view of 
many other people we have 



night. Games are becoming 
more sophisticated and are 

if that is all they are going to do 

"Eventually people will gel 

"1 believe software people 



and they are purely speculation 
— which have potential, lil-e 
education, which has hardly 
been tapped. 



"Take one subject alone, 
like physics. Vou could build up 
a library of 40 to 50 tapes just to 
take that subject to 0-level. 

"1 Ihink home accounting 
has a very limited future, it's 
going to be small fodder. For 
most people, with the rate at 
which a tape recorder can load 

be far quicker. 

Mr Tilloison, who has a 
16K ZX8I at home and a Sirius 
at work, is managing director of 
Marketing Direction which has 
just carried out a survey jointly 
wilh Gallup. 

It showed that the average 

hours a week using the machine 
and that nearly 700,000 
households had home corn- 
Other surveys have put the 
figure higher and Mr Tillotson 
said the difference may be ac- 

households owning more than 
one computer and by the dif- 
ferences in survey methods. 
Marketing Direction, 6 High 
Street, Thames Dillon, Surrey 



you could be 
on our pages 



programs should, if possible, be computer 
printed to a width of 48 characters (use a 

new ribbon) and/or sent on cassette. Check 
carefully that they are bug-free, include 

details of what your program does, how it 

works, variables you have used and hints on 
conversion. 

arti c us on using home computers should 
be no longer than 2,000 words. Don't worry 
about your writing ability — just try to keep 
to the style in HCW. Articles most likely to be 
published will help our readers make better 
use of their micros by giving useful Ideas, 
possbibly with programming examples, we 
will convert any sketched illustrations into 
finished artwork. 

tips are short articles, and brief 

programming routines which we can put 

together with others. Your hints can aid 

other computer users. 

Competitive — rates are paid. 

Keep a copy of your submissions and Include 

an sae if you want them returned. Label 

everything clearly and give a daytime and 

home phone number if you can. 



■MPUTING WEEKLY 19 April I9B3 



s\ i i r" ot for i6K 

SIMPLY THE BEST 




OLE 



How long can your fleet of ships sun 
100% super efficient machine code 3 
lor 48KI Spectrum. Superb anlmatlor 



ever increasing Intensity In deadlier and 

7 How many enemy craft can you destroy? 

; action to be packed Into run on the 16K 

ut Ion graphics, Incredible explosive and full 
a new standard In Spectrum software. 



In each calendar month from 
rt and the chance to compete f . 
championship to be held at the end of the year when we will be publishing a list of the t 

so you can find out just hew good you are. 

HOW GOOD ARE YOU?Take up the "BLACK HOLE" challenge NOW and find out. 
Send £5.50 to QUEST, 1 19 THE PROMENADE, CHELTENHAM, GLOS GL50 1NW 
to receive your copy of "BLACK HOLE" by return first class post together with 
igyou to discount on our forthcoming blockbusting 

A NEW DIMENSION 



IN SPECTRUM SOFTWARE 



HOME COMPUTING WEEKLY 1! 



TWO PEOPLE'S VIEW 



More and 
more micros 

A new survey shows 111 at [here 
are now l.lm computers in 
homes throughout the country 
wilh Texas Instruments and 
Atari gaining sales through 

The facts were gathered for 
■he trade Weekly Computing 
and The Observer from dealers, 

Its figures show thai in the 



>nths 



the e 



TOP 10 



Eyeing up 
your micro 



i the 



images transferred be 
vo — but at a price. 

I'Ssit hurst's MkToLvir ink-r- 
ice costs £339.50 

The company says that pic- 
irescan be digitized wiiharoolu- 
.iii of 25f> hv 25ft. although onlv 
!S by 128 pixels are used. This is 
> thai users are able to upgrade 
with a second processor. 

Micro Eye is supplied win 
cable and software, with which to 
analyse images, dump Ihem onto 



Tl to spend 

P/.m on TV 



Texas Instrui 



a TV a 



s is spending 



paiti; -.::;! rin^ 

The first pan of the cam- 
paign, beginning mid- Ma v. a ill hi' 
for ihc T1-99/4A and later its new 
£75 model, the 16-bil Tl-99/2, wUl 
be included. 

Texas says that the 99/2. due 
here after October, will bethe first 
16-bit computer at such a low 
price. It has rubber-like keys, 4K 
of user RAM — expandable io 
36 .2K — black and while display 
and a port ai the back for 1 1 add- 



Ceefox style 
for Spectrum 

simulate ihe Ceefax and Oracle 
Teletext services, says lain 
Siewart, who has produced a 
£4.95 program called ZXTEXT. 
li uses ihe full 32 by 24 screen 
of either Spearum model, plus 
colour, flashing and high- 
resolution graphics. He says it has 
a capacity of 900 pages, with 
enough memory. 



Granada 

lands 'em 

young 



eluding reports on pcogia 

and buurs' guides. 

Rohm Kent, producer. Giant 

TV. Manchester \If,U : /EA 




we have to 
stay friendly 



Many program? 
hours wilh mi 
introductory gu 
needs of Ihe not 



:e und the old han 



For several years we hate been writing software to help 

decision waking, emphasising friendly and convenient way.', to 
interact — menu'., extensive help facilities, tutorial guides. Hits. 
we thought, would enable people m concentrate on their 
proiileins. not mi ihe software. 

Gradually we realised we were getting just as many 
dissatisjwd am! reluctant users. 

They faced two problems ■: 

• They understood the program was rail to use. bill could not 
use it themselves 

• /( was difficult tor ilieni to judge how close they were from 
the correct operation of the system. They were frustrated 
hectiu?.! there was no easy transition from simple to more 

Menus are certainly convenient anil straightforward Joe 
novices, hut since they do not have to remember anything they 
have a tai her passive role, not encouraged tn think or explore. 
They are encouraged in place unreasonable lan'n in the software 
rather than themselves. 

Inevitable, menus restrict the functions available. 
frustrating users wlio.se needs tn no: unite match the designer's. 
With familiarity, menus can seen; tedious limits increase 
because users rush through to gel K what thev want. 

A menu s life, for a frequently used program, is about a 

At this stage Ihe facility to nan off menus, using 
commands instead, is essential so users go directly lo Ihe 
required operations and can also perforin more complex tasks 

He have also added learning features. As users choose 
options they are also given ihe command to perform those 
choices direct I v. ihe menus can be restored on moving to a less 
well-known pari. 

Indicating ihe part of Ihe input "in error" can be a good 
guide — al least the user knows that up to then he was correct. 
Suggesting possible alternatives helps and encourages 
exploration. I tetfi itteswees with examines are useful and should 
be available on request. They need to be at different levels of 
detail ami consults experienced users who will know some pans. 

If someone is lold a program is "easy to use" or "idiot 
proof " it is tltjfit ult for linn u, explain how he made a mistake. 
It implies he was at fault, he did something silly. Calling 









hiding 

So we encourage users to see software as a fairly complex 
tool which can be used wilh different levels of skill. Users need 
to develop a skill level appropriate to his needs. Such an 
approach can, however, only succeed if the program encourages 
exploration, moving gradually from one level to the next. 

Tliey must be though! of as long-term users rather than 
buyers. We should not assume they arc idiots. We. need lo entice 
them into finding out more about what the program can do, 
through friendly Interaction. 

In this way, perhaps, we can not only win some friends hut 
also keep-ihem. 

Marilyn Foole and Tim Smlthin 
Sehuol uf Management, University of Bath. 
• Wtiai makes y<>« pkascd ur aimnvml about the mmv .ncim.' 



;e8 HOMECOMI'UiiMi wttki y h 



PRACOM SOFTWARE REVIEWS 




St George and 

the Dragons 

E6.95 



A graphic adver 
len in BASIC at 
joystick. 

Your quest 



IliWrtijL-l 



or your heavy ar 



Four levels of difficulty con- 
trol how often the dragon does his 
flame-throwing bit, and you start 
each game with five lives. There is 
a high-score and personal score 
facility at the end of each game, 
together with a more unusual 



Which 

games 

should you 

feed to your 

Dragon? 



If you're in the market for 

Dragon games, look no further. 

Our reviewers have tested a 

selection of software for you 

— here's how they rate it 






i. Each lime the program is 
d, though, you have to sit 

gh instructions, complete 
and [ for one 

1 1 had got used 



4.;ppim: :!:;: 

You also get musical aco 
panimeni if you lose a life or 
complish your mission. 

The levels of difficulty 
well balanced, and 1 enjoyed p 
ing the game. Good graphics. 



J.M 



Monster Mine 

£6.91 

Gem Software, Unit D, The 
Mailings, Station Road, Saw- 
bridgeworth, Herts. 



which guard the path you must 

have to eat as many pound signs 
(worth £100 each| as you can 

Very easy to play, with 
some nice touches: for example, 
the program asks for your name 



and then prints message 
it. For controls you i 
arrow keys. The enter t 
also be used just once i 



(he ci 






Since ihe highest resolution 
graphics are used, no colour is 
available, but I didn't find that 
this detracted from the game. 
Monster Mine is addictive and 

any age. 

D.W. 



Games Pack 

III 

E6.91 

Gem Software, Unit D, Thi 
Mailings, Station Road, Saw 
!':iiliv'.i;.Tth, Herts. 

Two games on this tape, Revers 



is supplied on 
an fusing. Excellent title 

HOME COMPUTING V. 



ponents' pieces by sandwiching 
them between two of yours. Play 
is between you and the computer. 

even at Iheeasiest of the five levels, 
and the use of a ? which appears to 
check out all possible moves, lends 
to make ihis game boring. It does 
play reasonably well, though. 

Pontoon uses colour sound 
and graphics and is an excellent 

game. The computer acts as 



play. Agair 



in BASIC, bu 

With this lype of game yo 
really need a Full set of rules an. 
instructions to be primed on th 
cassette insert for reference. 

They are complex enough t 






:ofmi 



Both games loaded first tim 
d 1 did not discover any bugs - 
:ll error-trapped, too. 



space Mission 

£6.91 

Gem Software, Unit D, The 
Mailings, Station Road, Saw- 
bridgeworth, Herts. 



DRAGON SOFTWARE REVIEWS 



Ail asteroid is worth 100 
jinls, a hit on ihe outer wing of 
renemyship gels you IDOpoinLs, 
jl you score 500 for a direct hit. 









rotate your ship, and you are; 
cl! wit height lasers — one for each 
direction. But objects hitting your 
ship gradually whittle down your 
lasers; active lasers are shown at 
the bottom of the screen. 

The game is for one player, 
and control is via the keyboard. 
Seven skill levels arc accompanied 
by a funny remark. Selection of 
skill level is immediately followed 
by automatic launching and 
display ii! instructions. 

No colour, since the highest 



resolution is used, and no sound 
either — but that might prove too 
much of a distraction anyway. 

For if anything, the game is 
rather too fast, and it's practically 
impossible to avoid damage to 
your ship. The best tactic is just to 
rotate constantly in onedirection, 
firing all the while. This makes for 
rather a mindless, hut nonetheless 
enjoyable game. 

D.W. 



Planet 
invasion 

£7.95 

Microdeal, 41 Truro Road. St 
Austell, Cornwall PL25 SJE 

This fast machine code version of 
Defender requires a joystick to 
control the elevation and for- 
ward/reverse speed of the space 

There are two versions of this 

highest resolution and therefore in 
black and buff and the other 
which allows for a display in mote 
varied colour. There was little loss 
of quality in the coloured version , 
which 1 preferred as il made iden- 
tification of the different forms of 



Vourm 



to protect the 



Invaders, Other 
hazards hit you from all directions 
as you fly around by the seal of 
your pants dodging, diving and 

This was a very fast game ihat 
required split-second timing — 
very close to the arcade version. 

The sound effects, explosions and 
splimcrinji fragments added great- 
ly to the overall quality of prescn- 

My eight -year-old son retain- 
ed ihe highest score, standing at 
12,000 points, and my 7,000 look- 
ed pretty meagre by comparison. 
Very entertaining and highly 
motivating: if you like arcade 



Donkey King 
E8 



Dragon plus joysticks, written in 
machine code ;ind well presented. 
Loading posed no problems, and 
as a hint of the good things to 



shades of King Kong — 



Ontl 



rd by a gori 






■ay you 
otl (lames and other obstacles 
hurled by the marauding ape. 
There are four different screens 

veyors which you have to struggle 
through before you finally reach 
and rescue l he damsel. 

One or two people can play. 
To help out learnen you have the 
choice of playing at normal or 
slower speed. Another thoughtful 
touch is an option to play practice 
games which offer you twelve lives 
instead of the normal four. 

1 found myself agreeing 
wholeheartedly with Ihe cassette 
inlay card, which described the 
game as "barrels of fun". [ was 
immensely impressed with its ex- 
cellent use of ihe Dragon 's colour 

facilities. 

CD. 



payability 95 % 

graphics lOO'fo 

valueformoney 95* 



Dragon coif 

£6.91 

Gem Software, Unit D. The 
Mailings, Station Road, Saw- 
hi ideewonh. Herts. 

I don't play a lot of golf, only an 
occasional Crazy round at Ihe 
seaside. 1 was looking forward lo 
an instructive time, therefore, to 
help me along. 

You start by giving your han- 
dicap, so I typed in 5. Mistake 

'pro'. Next lime 1 typed 50, lo be 
told thai Ihe rules only permit up 
to 30. No allowance made for 
crazy golf players! I was beginning 



Onto 






display shows you Ihe top view 
from tee to hole with surrounding 
terrain. You are a yellow block 
which moves after each stroke 

Now for Ihe next riddle. 
Choose between Wood ( 1 4), Iron 
(2-9) or Wedge (Percentage of full 
swing)! Beware, because some 



:n clears lo update your p< 



you does nol always correspond lo 
Ihe text which describes your posi- 
tion relative lo the hole. Follow the 

When pulling on the green [ 
thought I could at least hold my 
own. Years of crazy golf must 
have done me some good ! Feeding 
in the Percentage of Full Stroke lo 
get to ihe hole I thought 1 could 
calculate Ihe distance travelled. 
Wrong again! 

Well, I've completed a few 
rounds of eighteen holes and I'm 
not much wiser. Playing Ihe real 
thing I'd at least be filter. 

It could appeal lo golfing en 
thusiasts, but nol a game that had 
l.i-iiiiL appeal for me. 

M.P. 



HOM1K SOFTWARE £ 

STRRTEGICCOnmriD 



strategic 
command 

£9.99 



A game of skill and strategy writ- 
ten in BASIC for two players using 
joysticks. 

The object is to overrun your 
opponent's capital. 

There are two programs on 
the tape. The firsi enables you to 
test ihc\ensiiivii> of your joysticks 
and the second is Ihe game itself. 



army and navy bases for e 
force, players control either 
red or yellow bases. Land and Sea 
units may be deployed and move ' 
using the joysticks. When Ihe 0| 
posing forces are near to eac 
other battle will commence — th 

strength of each force and the ski 
of the players. Each unit i 
displayed by one figure only 
regardless of the numbe 
elements. 

Olher features include 
laying units which can lay 
minefields. These do nol affect 
your force but play havoc with 
your opponent and air recon- 

able to discover Ihe makeup of a 

The instruction sheet includ- 

on how to play and what lo expect 
during the game. It takes a while to 
appreciate just what can be done. 



I loaded both programs first 



payability 
graphics 
value for money 

tMSED 



■■ COMI'tllNC WH-ikl.Y IS 




worlds greatest arcade games 
for- 
ZX Spectrum 
and VIC 20 



■ COSMIC INTRUDERS 

The original and best 
intruders game with some 
new twists - how long car. 
you last? 



the 



■ ROAD FROG 

Guide Froggy 
road, then the river ana 
finally home - but beware 
the Evil Monster! 



■ Hi-Resolution Graphics 

■ Sensational Sound Effect: 

■ Authentic Arcade Action 
■ Machine Code Thrills 




■ ROCKET COMMAND 

Speed across the planet 
surface to defeat the aliens 
and save the Human race - 
smart bombs and hyperdiive 
to aid you. 



■ MONSTER MUNCHER 

Chomp the apples in the 
maze before the monsters 
eat you - if you can swallow 
the boosters you might even 



ANY GAME JUST 

Including, VAT, post 

g% C C ■ ■ & P ack and OUR N0 

*■ ^ ^i I QUIBBLE REPLACEMENT 
CWWBlWW GUARANTEE 

SPECTRUM GAMES 

FREEPOST MANCHESTER M3 SBB 



061-832 9143 

Dealer enquiries invited 



Any ZX Spectrum Airy VIC 2 



Monster Muncher 
Rocket Command 
Road Frog 
Cosmic Intruders 



a 

6" 



SPECIAL OFFER - SAVE ON TWO - 

SAVE £2.00 ON ANT TWO GAMES - PAY ONLY £9.00 

I enclose cheque/P.O. tor £ 

or please debit my Access Card No. 




FREEPOST NO STAMP NECESSARY 



ZXB1 PROGRAM 



into battle against the 
enemy fleet 




■ fleet and destroy It. 
My Battle 16 game, which 



,1 /AH I ■ 



ObyH 



h I6K, ! 



find the enemy 
craft (see Figure 1). 

They are: one battleship 
(five squares) which is coded B, 
one cruiser (four squares) code 
C, one destroyer (three squares) 
code D, four auxiliaries (two 



10 3RUE •■BflTTLElB"' 

15 PRINT "URIT fl UHILE AND 
ILL SET UP", "THE GSrlE" 

16 PRU5E 300 



Sink the enemy ships, armed 

only with your ZX81. Dave 

Carlos' program sends you into 

battle 



squares) and i 

(one square) c< 

When all 



REM BHTTLE16 



30 


REM E> CRRLOS 


4.0 


REM 2S MRRCH 82 


50 


FR5T 


60 


GOTO 0£SO 




LET X = INT IRNEHlBtZ) 




LET Y=INT (RND*10+Z.l 


90 


IF X>18-(CtZ) OR Y<(C+Z 


EN GOTO 0070 




FOR fi=B TO C 


110 


IF GS (Y,X+R) < >" " OR G* 


,X) < 


" "■ THEN GOTO 0070 


120 


NEXT ft 


130 


IF F=Z THEN GOTO 0270 


1*0 


LET C=C-2 


150 


IF RND>.5 THEN GOTO 022 


160 


LET G* (Y.XI ="B" 


170 


FOR R=Z TO C 


180 


LET GS IY,X+R> =CHRS (170 






200 


LET St (Y.X+CtZ) ="■" 


210 


GOTO 0270 




LET GS (Y,X) =s"B" 


230 


FOR ft=Z TO C 


24-0 


LET G* (V-fl,X) = CHR* (170 


250 


NEXT ft 


260 


LET G*(V-IC+ZJ ,X> «"■" 


270 


RETURN 


280 


DIM StUO. 10) 

oxm es (10,103 


2S0 


300 


LET ZsPI/PI 


310 


LET I=NOT Z 



mother game of- 
in Figure 2. 
) emphasise the 



The prompts for in- 



No return key needs ti 
pressed as input is taken from 
1NKEY S statements. 

As the game grid (GS) and 
the screen grid (S$> ; 
separate, it is easy to restart 
game — just type GOTO 48 



3*0 FOR H=5 TO 3 

360 GOSUB 0070 

370 NEXT H 

380 FOR H=Z TO 4- 

390 LET c=a 

4.00 G08UB 0070 



OR H=Z TO 

ET C=Z 
OSUB 0070 



4-80 PRINT RT 

". 1ISSES " 

;RT 11, z 



KB 




500 FOR H=10 TO ^ _ 

510 PRINT TRB 9;H-l:TfiB 

5IIHJ ; "1 ■■ 

520 NEXT H 

530 PRINT TRB 9; "' 

54-0 PRINT TRB 10; 

550 SLOU 



550 PRINT RT 7,Z; 
B70 PRINT RT ?,Z; 



;HT 17,10; 
;RT 17,10; 



>10 THEN GOTO S6 
610 PRINT RT 7,3;X-1;CHR* 0; 



E COMPUTING VVI-UKI V I' 



ZX81 PROGRAM 



620 PRINT RT 9,1}" 
B" 

630 PRINT RT 9jl; " 



■; PT 16,9; " 
■•; AT 16, •Si " 
0620 



6*0 IF INKEYS="" THEN C 

550 LET Y-CODE (INKEY$) _ 

660 IF Y<1 OR Y>10 THEN GOTO 63 



see 

700 FOR M=l TO ie 
7ie print RT 12,2; "i 

720 PRINT fiT 13,2," 

730 NEXT H 

7*0 PRINT FIT 12,2;" 

750 LET M=M*2 

760 PRINT RT 12, SS;: 

770 LET 5» <Y ,X1 -"X ( ' 

760 PRINT RT 16-Y,X 

790 GOTO 0560 

1 S* tY,X~ 



THEN GOTO 
THEN GOTO 



12,2; 
RT 12,2; 



■^a~ 



690 IF 1=23 THEN GOTO 0960 



=1 TO 20 
94-0 PRINT fiT 12,2; " 

950 goto ssea 

960 PRINT AT 19,1; "(JELL DONE ' 
GOT THEH RLL I N' L , " ONLY """ 
TRIES- ;TRB 1; «**-*- •— — 






Figure 2. End of game, with scores 





The 7th ZX Mtcrofalr will be on June 4th at 

Alexandra Palace Exhibition Pavilion London. 

li's twice as big as the last show. 

Easy to get to from any part of the country! 

Come along and see everything for ZX computers! 

' ZX Spectrum *ZX81 

'Software 'Hardware 'Books 'UsersCIubs. 
Practically every manufacturerofZX products 

A good day out — Plenty of parking space! 
Send now for advance tickets and Instructions 

of bow to get there ! 

Available from: Mike Johnston. 7 1 Park Lane, 

Tottenham, London N 17 OHG. 

Adults £1.00. Kids|under 14) SOp. Please make cheques 

payable to ZX MICROFAlRand enclose S.A.E. 

EXHIBITORS 

SPACENOW AVAILABLE WITH 
PLENTY OF ROOM TO MOVE! 
PHONE MIKE JOHNSTON 
ON01-801 9172- leavea JV Ul 
message on the ansaphone! LA nil 




GALAXY 




HOME COMPUTING WEEKLY 19 April 19S3 P.ge 13 



SOFTWARE REVIEWS 



Programs to 
teach you a 
thing or two 



you micro can take the sting 

out of learning a whole range 

of subjects. Our reviewers cast 

a critical eye over a selection 

of educational programs, some 

for children and some for 

adults. 




Educational 
— IB BBC B 

ES.55 

jolem. 77 Qu alii as, Bracknell, 

terksRGI2 40G. 

even different games, designei 



o help children aged five lo 
nine wilh maths, memory, 
> pel ling and telling ihe time. 

Math I deals with addilion 
ind subtraction. Math 2 with 
nultip Neat ion and division — 

n both, (he players must race to 
uiswer the questions and reach 



program . 

Cubccount asks the players 
to count the number of cubes 
displayed, and Shapes asks 
them to name various shapes. 



ipL'llinij Lin J telling the tirti 

games, offering various levels 
of difficulty and speed of 
response. Entertaining enough 
to keep young childi 
attention and, on the whole, 
well-designed enough to 
them learn while enjoying them- 
selves. Good value for moi 



Both t 



MPbiCi 



fun to play. 

Memory tests ability to 
recall colours and shapes 
displayed in a limited time 
and Spell and Clock, as 






, help v 



Educational 
— 2B 
BBCB 
£8.55 



Aimed at slightly older children 

GOLEM 
SOFTWARE 









2B simply contains 

sions of most of the gi 

ucational — IB. 

Math I, Malh2, Memory, 

Cubecount and Spell reappear in 

upgraded form, but Shapes and 

Clock are replaced by Art 

jne in which the player h; 

jrk out the area of a rectangle or 

uare. Area is well dc _ 

little too slow in supplying the 

swers to problem 

The pack age contains one less 

game than Educational — 




Eduquiz 1 

Dragon 

ES.65 



question and a choice of answers, 

value. Type in the number of your 
guess and how much you wish to 
bet, the correct answer is given 
and the money is adjusted ap- 
propriately. 

1 do not usually like quiz pro- 



ln which 



q uest ions are asked by juggling th e 

addictive. You learn by your 
mistakes. There are a lot of 
^nations of facts and it v 

possibilities were exhausted. 

Test only, but with ai 
cellcnt title page and good ins 

presented on screen. Edu- 
quiz 1 is easy to use, fun and 
educational. Written in BASIC, it 
loaded first time and seems ade- 
.|ii:!idy idiot -proofed. 

If this program had included 
"high score hall of fame" 

- and how did they get it to 
black tew on orange? 



payability 
value for money 



oWo 



in and the clever w; 



SXXX.1 



WEEKLY 19 April 1983 



SOFTWARE REVIEWS 



Simple 

Arithmetic 

48K Spectrum 

E4.95 



Two programs aii 

children improve il 

Numbers is a 

Space Invaders gai 



shooting an invader from ihe 

answer before they land — a 
wrong answer loses a life. An in- 
teresting way of motivating 
children to do drill exercises. 

Kipper is a Batltcships-type 

ordinates in an attempt to locate 
the kipper. No: so graphically in 
teresring and of less obvious 
educational value as Numbers; it 
soon became boring even though 
Ihe difficulty level increased. 



■ iil.mu r t'-s 1 1 n 



«•"£ SINCIAIR 

: zx sn-rrmiM tib* - mm. 

integration 

Matrix 
Operations 

E5.95 

Linear 

programming. 

Regression, 

£6.95 

Spectrum 



These five programs are designed 
as aids for A-level and university 
maths students, researchers and 



-for* 



tides 



will be sell -explanatory. 

They are not intended as 
leaching programs, and some 
knowledge of the mathematical 
compuiaikiii;. ihey deal with will 

As well as knowing their sub- 

somet hing about computing — a 
working knowledge of the com- 
puter keyboard is assumed. 

Written in Basic, the pro- 
grams are mainly direct conver- 












ntially 



functional, 

Having said that, the screen 
displays are clear, simple and 

My maths teacher friend Jim 
was impressed wilh [he programs, 
and thought ihey would be useful 

O- and A-level classes — now all 
he has to do is persuade his •cliool 
to buy a Spectrum. 

Packaged with books 10 leach 
the subjects they cover, these pro- 
grams could potentially be used 
for teaching. 

But Ihey would need belter 
screen prompts — Ihe prompts are 
clear enough, bul not very user- 
friendly. Though the programs do 

entered, neither do ihey give any 



Ui i uiimiiir 



Both programs loaded easily 


ficulty. h presents and teaches Ihe 


and began with prompt for name, 


techniques of inorganic chemical 




analysis in a very entertaining and 


and you gel no help from the insert 


informative way. A teacher friend 




of mine said, and 1 quote, 


Numbers asks for an input for 




speed from 1 to 25 — no informa- 


TEACHING program at last!" 


tion as to which is which (25 is the 


A comprehensive instruction 




booklet is supplied with the 


Bui on both games colour 


cassette, which loaded easily and 


and graphics arc put to good use. 


displayed clear, precise prompts 


wilh sound used on Numbers. 


and options. Excellent use of col- 


A useful maths aid. but could 


our ami umpliics hi demonstrate 


do wilh better instructions, and it 


various processes, sound is not us- 


takes a few irial runs to become 


ed, but then again it is no: really 


familiar with the operating pro- 






1 could not find any bugs, and 


R.E. 


ihe program seems to be well 








Fully recommended to O- or 


payability 70% 


A-level siudents and schools. If 1 


graphics 65% 


was allowed loose in a laboratory 


value for money 80% 


the program warned me of my 




almost certain demise, and this ad- 




ded an extra dimension of interest . 








seen some explanation of invalid 






Chemal 


entry expected: but this is a minor 
quibble on an otherwise excellent 


48K Spectrum 


program . 


£8.50 


R.E. 


Camel Micros, 33a Commercial 


instructions 95% 


Road, Weymouth, Dorset. 


payability 90% 




graphics 95*% 


1 have only a very basic idea of 


value for money 100% 


ehemislry but 1 was able to follow 




and use Ihis program With no dif- 




Elem Add/ 




Elem Sub 


sounds, and the child has lo 


Multiply/ 
Divide 


count them. Some are Ihen 
crossed out and the child has lo 


BBC 


The subtraction is then 


£7.50 


horizontally displayed and once 


Cottage Software. Heather 


vcnically. The correct answer is 


Cottage. Selly Hill. Whitby. N 


finally rewarded wilh a big, red 


Yorks. 


noisy tick. After all the 


Of the four programs in this 


bus appears on the screen 


elementary Maths package 


displaying the number of errors 


from Cottage Software, three 




resolutely refused to load. Even 


Although quite pleasing [he 


my local BBC ageni couldn't do 


program has a number of draw- 


it. His conclusion was the same 


backs. It will accept any 




number of wrong answers 




without offering a correct one. 


The one thai did load was 




Elem Sub. Designed lor an 




average six -year old, it gives 


'tapping' on the Escape key. 


practice in subnact.on wuh 


K.O'S. 


No preliminaries — the 


instructions 25% 


program geis straight down to 


case of use 60% 




graphics 60% 


brightly coloured objects 


value for money 20% 



HOME COMPUTING WELKLV l'> V 



SPECTRUM PROGRAM 



are going in opposite 
directions, and your opponent 

How many laps can you 
last before the inevhable end? 
Does it remind you of the North 



Wht 






l for 



i I and 9. The higher the 
' entered, the more 
suicidal your adversary. 

Once you are moving, the 
only control you have is the 
ability [o change lanes a! [he 
openings in the dividers. Press I 
10 move to an inner lane and 
letter O to get to an outer one. 



How long 
can you 

survive a 

suicidal 

Spectrum? 



The only way to avoid a head- 
on crash is to change lanes... 

and fast. A game for the 

spectrum, presented by Mike 

Lord 



so [liuvcmciit lias y! ac- 
Mihl' hall'«Li> from osie 

qui: if you htue hit ilu- 



it flag ef if 
the Spectrum decide;, u> 



300-330 work out the next pos 
tion or [he Spectrum' 

100 GO SUB 9000: REM set up for first race 

200 IF yy=21-yt THEN LET nyx=yx+1 : IF yx=30-yt THEN LET nyy=yy 

-1: LET y$=CHR$ 115 
210 IF yy=yt THEN LET nyx=nyx-1: IF yx=yt+1 THEN LET nyy=yy+1 : 

LET y$=CHR$ 115 
220 IF yx=yt THEN LET nyy-yy+1 : IF yy=20-yt THEN LET nyx=yx+1 : 

LET y$=CHR$ 144 
230 IF yx=31-yt THEN LET nyy=yy-1 : IF yy=yt+1 THEN LET nyx=yx 

-1: LET y$=CHR$ 144 
240 IF nyx=15+(yy>12) OR nyy=11 THEN LET yf=2*((yt<7 AND 

INKEY$ ="i u )-(yt>1 AND INKEY$ ="o")) 
250 IF yfo0 THEN LET nyx=nyx+((nyx=yt )-(nyx=31-yt ) )*SGN yf : 

LET nyy=nyy+((nyy=yt)-(nyy=21-yt))*SGN yf : LET yt=yt+SGN 

yf: LET yf=yf-SGN yf 



your ear 

yt your track num her ; trae k 

I is on the outside, and 

numbered 1,3,5, and 7 
cx,cy,ct co-ordinates and track 

number for the c 

puler's car 
n>x,ny> nexi y\ and y> value 
ncx.ncy next ex and cy value 
>W flags, set to +2 or 



• Krom Exploring Speclru 
BASIC, by Mike Lord, publlshi 
al£4.95byTimcdala, 16Hemmell 
High Road. Laindon. Basil 
Essex SS15 6ED. 




;e16 HOME COMPUTING 



SPECTRUM PROGRAM 



263 IF nyy^cy AND nyx=cx THEN GO TO 400 

388 IF cy.21-ct THEN LET ncx=cx-1: IF cx=ct*l THEN LET ncy-ncy 

-1: LET c$=CHRt 145 
310 IF cyct THEN LET ncx-cx+1 : IF cx=38-ct THEN LET ncycy+1 : 

LET C$=CHR$ 145 
320 IF cx=ct THEN LET ncy=cy-1: IF cyct*1 THEN LET ncX=CX+l : 

LET C$=CHR$ 144 
330 IF cx-31-ct THEN LET ncy=cyt1 : IF cy=20-ct THEN LET ncx=cx 

-1: LET C$.CHR$ 144 
340 IF (ncx-15*(ncy>8)) OR ncy=ll THEN IF RND <s/1B THEN LET 

cf=2*SGN (yt-ct) 
350 IF Cfo0 THEN LET ncx.ncx+((ncx=ct )-(ncx-31-ct))*SGN cf : 

LET ncy=ncy+((ncy=ct)-(ncy=2!-ct))*SGN cf : LET ct=ct+SGN 

cf : LET cf=cf-SGN cf 
400 PRINT AT yy,yx;"»";AT cy,cx;".";AT nyy.nyx; INK 1;y$;AT 

ncy.ncx; INK 2;c$ 
410 LET yx-nyx: LET yy=nyy: LET cx=ncx: LET cy=ncy 
420 IF yx = 16 AND yy<8 THEN LET lap=lap+1: PRINT AT 9,12;lap; 

" LAP";("s" AND lap>1) 
430 IF yxocx OR yyocy THEN GO TO 200 
500 FOR a = 1 TO 6: FOR b=144 TO 145: BEEP .03,-40: PRINT INK a; 

AT yy,yx;CHR$ b: NEXT b: NEXT a 
510 PRINT AT yy,yx;CHR$ 145 
520 IF lap>hi THEN LET hUlap: PRINT AT 11,12;"HI SC0RE";AT 12 

,15;hi 
530 INPUT "Press ENTER for another run"; LINE iS 
540 PRINT AT yy.yx;".": GO SUB 9200: GO TO 200 

9000 REM draw track 

9010 INK 0: PAPER 7: PUSH 8: BRIGHT 0: OVER 0: INVERSE 0: 

BORDER 7: CLS 
9020 FOR a=32 TO 168 STEP 32: PLOT a/2, a/2-13 



DRAW 12, 12, PI/2 
DRAW -12, 12, PI/2 
DRAW -12, -12, PI/2 
DRAW 12, -12, PI/2 



9030 DRAW 256-a,0: 

9040 DRAW 0,176-a: 

9050 DRAW a-256,0: 

9060 DRAW 8,3-176: 

9070 NEXT a 

9080 FOR a=2 TO 6: PRINT AT a,15;""";AT a+13 , 15; "••" : NEXT a 

9098 FOR a=10 TO 12: PRINT AT a. 2;" ";AT a, 25;" ": 

NEXT a 
9100 REM cars 

9110 DATA 231,66,255,255,255,255,66,231 
9120 DATA 189,255,189,60,60.189,255,189 
9130 DATA 36,98,189,126,126.189.90.36 
9140 RESTORE 9100 

9158 FOR a=8 TO 23: READ b: POKE USR "a"+a.b: NEXT a 
9160 LET bi=0 
9200 REM starting values 
9210 LET yx=15: LET yy=1 : LET yt=1 : LET nyx=yx: LETnyy=yy: 

LET y$=CHRJ 144: LET yf=0 
9220 LET cx=16: LET cy=7: LET ct=7: LET ncx=cx: LET ncy=cy: 

LET C$=CHR$ 144: LET cf=0 

9238 LET lap=8: PRINT AT 9,12;" " 

9240 INPUT "Skill (1-9) ? ";s 
9999 RETURN 



WEEKLY 19 April 1983 



0.PERSOFT I 

ti/_ I PERIPHERALS AND SOFTWARE J 



HOME ACCOUNTS 


FRENZY 






















Microcomputer, 


such as dogs, fire hydrants and 
















^kil] arc r C1JU ir„l a, HMJr vcrucle 




(Wis farter and fairer. 


A ti iikil.l^Ii ! rl!iL-M l KiLrH-MiL-m 


For Model 'A' or 'B' Micro. 




PRICE: £5.75 


PRICE: £12.50 





high quality dull a<is 
i encased in in elegant 
as for use »ilh Adval (O) 



comes compleie *i[h fall in: 



CQJ.QJH GEI^JE 




QUALITY n/TJ/JJ 

SOFTWARE LLJ UJ ijj 



-s*s-«H 



B.B.C. micro FsarufK nduflBLafarto«*8en,fiC^*iaay.fn«ki>ainrll3c 
gauge. smoke serpens. G sk* revels, ratings. increasing drtr«jjHy and sound t 
GALAXIANS (3!K) E6.50 CesKtle/tS.M Disc 
Fast adxyi version or Ore popular arcads game. 4 typeset Garajiari (ma initial * 
'^^"'■^nslswooofli>iinhfVnlKbaJr/oilnrjnJucisorh^o- J - — ' 




"tans"' hi up. OnatJAvHid 

ground Suitaflle (or mi Iriri keytwu ur refill 

Superior ve-Min c( the « classic arcana nan, net 
'.■■ --'-■"- - r -r- "ombs that erode you* defences, ark 

reieasirro. large combs Dial penetrate rrwougn your 
■..:-■:;...■ :..:■■-.-- .i.-xsgotfnca. 



ol menacing alien rue ai yo* 



% 



SUPERIOR SOFTWARE 
Dept. vam 
69 Leeds Road, 
Bramhope, Leeds. 

Tel: 0532 84S714 




ASTROLOGY 

truly AVAILABLE AT YOUR FINGERTIPS 

R PROMPTING PROGRAMS: merely key in birth inform: 



IE SIDEREAL TIME OF BIRTH. 

AND MIDHEAVEN in Sign. Degrees. Mini 

end Seconds lor EQUAL HOUSE SYSTEM. 

SIGNS AND POSITIONS OF THE HOUSE CUSPS in Si 

Degrees, and Minutes lor the PLACIDEAN SYSTEM. 

SUN AMD MOON POSITIONS in Sign. Degrees, Minu 



1 THE PLANETS POSITIONS in Sign, Degrei 



A HOST OF OTHER 



FOR <18K SPECTRUM AND 

ZODIAC F 

FOR ONLY £15. 
Other programs in course of preparatioi 
THE HOROSCOPE; RECTIFICATION O 



INFORMATION A 



5: PROGRESSING 



STELLAR SERVICES 



Pug* 18 HOME COMPUTING WEEKLY 19 April 1985 



CASSETTE 
SOFTWARE 

FOR TRS SO MODEL 1 LEVEL 2/VIDEO GENIE 
3003 

MACH 4 — 2000 Baud write, verify, load, read. 

speeds up your cassette operations by a 
factor of 4. Basic & System format can be 
handled, autosync & program search, can 
be relocated, for TRS 80 only £14.00 

AID — 7 function Basic toolkit. Renumber, move 

lines, compress, search for statements 
St/or strings, automonitor on line number 



MDOC- 



& memory to prevent overflow, 

relocated £9.00 

DISPLUS — 12 function disassembler with full 

mnemonics & hexadecimal presentation 
with ASCI 1 string display, single step & 
page step disassembly, string search, 
arithmetic, printer support, relocates £i 0.00 
diagnostic ("or pnm.iiv system. Does your 
latest program screw up because of an 
obscure machine fault or is i( your 
programming? MDOC can save you 
pounds by reducing trips to the repair 
shop. Checks CPU, display, chip 

addressing. RAM, etc £7.50 

Just 4 items from our Product Range, all prices fully 
inclusive and all cassettes guaranteed. Just send 
cheque/po for fast delivery, or 20p for more details and 
quantity discounts, SAE not required. Dealer enquiries 
welcome. 



J K GOSDEN SOFTWARE 

Tineslip, 13 Ash lead Common, 
Ashtead, Surrey KT21 2ED 



life easy 

to complain 

about 

advertisements. 



ASA. Ltd Book Hnua.lbn 




THE DRAGON DUNGEON 

PO BOX 4, ASHBOURNE, DERBYSHIRE DFS 1 AQ 

Tel: ASHBOURNE i."""" 



RABBIT SOFTWARE 



SPECIAL OFFER 



For the unexpanded VIC 20 

NIGHT-CRAWLER Dare you venture into The Green Forest? 
HOPPER (Frogger) Bring this famous pub name home. 
SCRAMBLE Guide your craft through many perils to gel to you 

_,_ige across the Universe and face many a 
mM-n^ri!-. j- Srui-f Phreeks. 
overrules available. 
Recommended Price £9.99 each. 
Our Price £7.99 each, buy two or more ai £7.50 each. 
MR CHIP 

DATABASE Create your own custom files I 

M/C SOFT Mac hi ne code monitor and disassembler, and 

memorysiie £7.50 

CHARACTER EDITOR With our own window facility i 

BANK MANAGER Computerise your bankaccount, for 

theuneipanded VIC £5.00 

SUPER BANK MANAGER A full feature version, needs JK 

expansion, but will run on any memory siie \t 

COMMODORE 64 MONITOR AND DISASSEMBLER 1 



ynedd LLM 3BL Tel. 0491 49 



HOME COMPUTING WEEKLY Is 



Personal Software Services 



Two Arcade Style Games 
for ZX8116K 




Tai £4-95 

In any other time or galaxy, 



callec .. 
quite unimportant. 
TIMES CHANGE.... Now it is 
the last remaining out post 
between the advancing 
Imperial Fleet and the main 
planets of the Dorfian system 
Unless the Imperial Forces can 
be held off until the Republi- 
can battle fleet arrives, an 
entire civilization will be 
betrayed.... 

You have been chosen to 
defend Tai , the Galactic 
future depends on you.... 



Krazy Kong £3-95 

All machine code version 
of the popular arcade 
game.This program has all 
the features of the original 
and is everv bit as fast 
3 different 
screens i 
make it I 
difficult I 
to beat.fi 



ATARI PROGRAMMING 



Make the most of your 
Atari's screj 




ise a GRAPHICS 

command or 

also creaiing a display list. This 



This shows that BASIC 



- 24 lines multiplied by 



After delving inside his Atari, 

Marc Freebury emerges with a 

report on how to use its 

display list to create good 

looking games 



the display list K 
just bring the set 
central position. 



□ the memory to be used in tl 
crcen display, high byte secant 
M byte first. 

Then comes a series of loc 
ions describing what modes w 



These modes ai 
in computer mode ni 



ns which tell the computer lo 
back to the start and display it 
over again. The first is always 
, the second and third are the 
v and the high bytes of the ad- 
■55 of the start of the display 









3 GRAPHICS D;S£TCOLOR 
2,0,0 
"-]_ - PEEK(560> + 

30 POKE DL + 3,71: 

40 POSITION 2.0:? "HELLO" 



It appears that the second 
line is also in mode 2, but it 
il is a continuation of the lop line. 
The modes I and 2 only us "" 
characters per line, and twe 
required to fill the 40 character 
line we removed. 

This technique allows 
smart opening titles, or putting 
"score" in large characters. 

Muring large numbers 
modes will require forethought, 
since the graphics modes will also 
have the same problems ai 
text modes with regard to 

If you do attempt this, 
your new display list in a 
place, such as 1536. Then POKE 
559 with 0, POKE 560 will 
low byte of the display list ad- 
dress fin this case 0) and POKE 
561 with the high byte (in this 
case 6). Lastly, POKE 559 with 
34 again. 

Do not forget thai the ad- 
dress of the screen memory mi 
also be poked into the fifth ai 
sixth locations of the display list , 
befoie the POKE 559,0. 

Used at its simplest level, the 
display list can provide interesting 
effects. AI higher levels of i 
plexily il could lead to some 
interesting games. 



:E COMPUTING WEEKLY \i 



APPLE FAMILY from Namal 



INTERFACE 24 (PIA CARD) 




PARALLEL COMS 1 (CENTRONICS 
INTERFACE CARD) 




FORTH FOR 
THE DRAGON 32 



iplementation of Fig-FORTH for the DRAGON 32' 

>wer ofthe FOHTH language, DRAGONFORTH' can also 

-,e superb. DRAGON sound, graphics anfl 

. . speed ol FORTH lo produce an unparalleled 
in SASIC or a whole program m FORTH o< any 



send £2.50 tor the 60-page manui 
olessionally packaged, sensibly pi 



AUTHORS- Oasis Software will markel high quality programs you write i 

We pay a lump sum on acceptance and a generous royally. Lei's hea 

OASIS SOFTWARE. LOWER NORTH STREET, CHEDDAR, 

SOMERSET. Telephone 0934-515265. 



DRAGONFORTH'. 



£18-95 



DEALER ENQUIRIES WELCOME 



SPECTRUM SOFTWARE REVIEWS 



Where the arcade action 

is — for your 

Spectrum 



ToboraBK 
£6.95 

Elfin Software, Hudson House, 
Battery Road, Great Yarmouth, 
NR30 3NN 

Why didn't they say it was a ver- 
sion of Pac-man in the first place? 
1 can't play Pac-man! After the 
3-D opening sequence of robots 
moving through what looked like 
city blocks and clever little bowl- 
ing routines, 1 thought this was go- 
ing to be great fun ! 

Instead, I'm presented with a 
two-dimensional maze, a man 
who won't move as he is told and a 
gang of itinerant robots who pro- 
ceed to beat my man to death 
before 1 've had time to get to the 
movement keys! Most frustrating. 

Toborisnotatallbad.ifyou 
like Pac-man style pursuit games. 
It does have a different slant or 
two, but the graphics are way 
behind, for example, Psion's 
Hungry Horace — the best Spec- 
trum Pac-man I've seen to date. 

In Tobor you get killed as 
soon as the robots line up on you 
— none of this close quarter stuff . 
You can only fire in the direction 
you're moving and you will die 
often. 1 cannot advise on tactics — 
[ never stayed alive after collecting 
my jewels in the city to devise any. 

Good fun then — but not 

what the presentation promises. 

R.H. 



60ft 




There's a bewildering range of 
arcade-type games on the 
market. Our panel tells you 

what they thought of some of 
the new releases 



space 

Zombies 

Spectrum 

£5.95 

Mikro-Gen, 2A Agar Cresce 



Zomt 






ss these 



shot up absolutely at 
An opening, easy, round maybe? 

Not a bit of it! The next round 
is every bit as enthralling and 
challenging as the first . After a few 
minutes of this you will be looking 
forward to cleaning your teeth at 
night for a bit of excitement. 

About the only use 1 can con- 
ceive for Space Zombies is as an 
introduction to space games for 
young (i.e. undcr-eight ) would he 
space conquerors. The colours are 
quite nice and you do gel killed, 

Otherwise, I'm afraid it's all 



iM;]!>3£] 




Strict I y lor those ' 

stepping on small furry animals a 

balanced and exciting pastime. 



payability 
value for money 



E3 



£5.95 



Defender by any other name... is 
just as difficult! Cosmic Raiders 
runs slowly and not particularly 
smoothly. The spaceship looks 
like it's running on half cylinders. 
Firing the craft's laser freezes the 
entire screen for a brief period. 
Despite all this, the game is good 
fun to play and will bring you back 
to the keyboard for another try. 

As with all derivatives of the 
arcade massacre, the aim is to 
preserve stupid humans from the 
hovering alien kidnappers. They 
are not making it easy for you. 



however, as (hey have all climbed 
to the top of high buildings and are 
waving about frantically. Even the 
most short-sighted alien couldn't 

Still, save them you must 
against landers, mutants, mother 
ships and the rest. If things get too 
frustrating, shooting humans 



often more satisfying! 

Bad for public relatio 






payability 
value for money 



Meteor storm 
£4.95 



Cyan outlines of meteors skim 
across a plain black screen in 
classic Asteroid style. Occasional- 
ly a pink spaceship, firing yellow 
bullets, bounces randomly into 

Meteor Storm proved to be 
playable, enthralling and suffi- 
ciently fast to provide a challenge. 



The program includes a soph- 
isticated attract mode with a high 
score tale. Sound is used to good 
effect, and the meteors travel 
smoothly and quickly. The explo- 
sion displays could be better, 
though. 



You a 



tetheal 



using the lop 
row number keys, and a keyboard 
overlay is provided. But control of 



pkiMihikiv 
liih.ji; !'oi llh'i 




HOME COMPUTING WEEKLY 19 April 



SPECTRUM SOFTWARE REVIEWS 



Leapfrog 
£5.95 

CDS Micro Systems, lOWestfield 
Close, Tkkhill, Doncaster, South 
YorksDNJ19LA 

A standard version of the arcade 
game Frogger, where a frog has to 
'•e guided through four lanes of 
-affic, across a river by leaping 
(TOSS logs and turtles and finally 



e of fi 



If the 



: is already occupied by 
crocodile you are eaten, but if 
t here is a d ragon fly there you score 
a 50 point bonus. 

Other hazards are the risk of 
the long-suffering turtles sinking 
beneath the waves, hence drown- 
ing you, and a hungry snake lurk- 
% on the riverbank (though I 
ver encountered this). 

You move your frag using the 

rsor keys and the S key to start , 

tractive graphics and sound, 

though the tune at the beginning 

:nd of each game gets a bit 

is alter a lUiilc. especiiilk a- 









A good solid implement; 
ic game, but with no inr 
:, It is quite compulsive 



fc 



LEAPFROG 




had no response; at other times the 
briefest touch sent the ambling 
amphibian too far forward and in- 



Planetoids 

£4.95 



eors, Asteroids, Planetoids... 
software companies are fast runn- 
g out of synonyms for drifting 

,'in kliiig stars form a backdrop to 
yellow planetoids, which pass by 
smoothly and quickly while you 




Z and X control your rota- 
lion, SPACE is for firing, and 
ENTER is for thrusting. You 
access hyperspace by pressing H, 
necessitating a sudden swipe at the 
centre of the keyboard in an 

Your ship moves responsivcly 
in all directions, and the graphics 
are generally good and colourful, 
despite a disappoint in.! u\ploMi'ii 
effect. The sound could be im- 
proved, though — and why is 
there no high score facility? 

As for bugs — try hyperspac- 
ing while thrusting, or accelcraling 
over the mystery ship's bullets (it's 
safe!). And a position of total 
safely can be found at the screen's 



Planetoids is an average 
adaptation of the arcade game, 
but Psion has not fully debugged it 
or presented it at its best. 



Ground 

Attack 

£5.95 

Silversofl, 20 Orange Street, 
London WC2H 7ED 

Be warned: this program is 
addictive. With each run that 



i feel t 



t the 



and avoidable. With a slight 
change of tactics you should be 
able to do much better. So you 
try again — and again — and 

as Scramble, among other 

provides you with three ships 
armed with bombs and lasers. 
Your task is to destroy enemy 
fuel bases while dodging 
ground-to-air missiles and 

The scenery, which moves 
from right to left, begins in the 

inderground caverns which get 



[actio dawn on you as yoi 
experience. Destruction o 

spectacular and effective way, 

No bugs or glitches w 
detected, and the program 
loaded without difficulty. 

Excuse me. 1 must practice 

that ground-skimming laser 

attack. If 1 can get that right... 

D.T. 



Cobble a Ghost 
£5.95 

CDS Micro Systems, 10 Wesifidd 
Close, Tickhill. Doncaster, South 
Yorks. DNI1 9LA 

No prizes for guessing what this 
program should really be called. 
Four ghostlike object pursue you 



* GOBBLE 

* A GHOST 



-V^ 



if they catch you. You have the op- 
portunity of eating up to Tour 
power pills, each of w hi di give you 
a temporary chance of revenge. 









ficult using [wo hands, but one I 
still found confusing as 1 tend tc 
forget which a\is is controlled b> 
which pair of keys. 

The graphics are fine and the 

Spectrum, but neither is pi 

machine code program there is 



E COMPUTING WHLKLY I* April 1983 



(£ SOFTWARE 



THE BEST AT £795 
Guaranteed able to 



llOFR CHESS II ^ consistently beat SargonH 

►ll"*-**., SPECTRUM .^ 



and all other Spectrum chess 
programs " 




• • ORIGINAL SUPERCHESS»» The Chea 



•'• SPECTRUM SPEECH *• 



• • BACKGAMMON •• 



• • ZX DRAUGHTS •• 

• • SPECTRUM FORTH •• NEW!! 



• • SPECTRUM BRIDGE TUTOR •• NEW!! 



CP SO FTWARE, Dept. hcw.17 Orchard Lane, Prestwood, Bucks. HP16 ONN 

B 



ZX81 SPECTRUM DRAGON TANDY BBC 

16K 16/48 32 LEVEL 2 A/B 



ADVENTURE 



* Select the '( luar-herd' level ni' pluy imd it's :ai addictive 
game for children (8+ ) that exercises their minds -not 
their loser fingers. 



* Evade ruthless pursuer^ and m-cro'iiic a Imsi ul obstacle 

* Multiple word commands and single letter aiibro .i.iiioiis! 



£1000 IN PRIZES 



FANTASTIC VOYAGE 
(ZXS1 16KONLY) 

This real-time graphics simulation set inside the human 
body was written by a lecturer in anatomy. You are injected 
into the blood stream in your miniature submarine. Navi- 
gate the arteries, veins and heart to the brain, where a blood 
dot most be destroyed. Features a real vascular map. You 
will be attacked by lymphocytes which must be destroyed 
using arcade game type graphics. Everything you do uses 
lip precious energy. Three display formats-a lateral and 
frontal body scan plus blood vessel name, a close-up scan 
and a laser-sight for fighting lymphocytes. 



* Buy both Awari and Adventure and et 

the 'Foilkade Challenge' compel h mi. 
Details with cassette or send SAB. 



FOILKADE LTD 

HCW7 

66 LITTLEDEAN, YATE 

BRISTOL BS17 4UQ 



E COMPUTING WEEKLY 19 April I9E3 P"S' 



PROFILE 



Romik has already outgrown its 
small office at 24 Church 
Street, Slough. There is just 
about enough room for the two 
partners, Mike Barton and 
Gerry Rose, and their two 
assistants — but since a large 
iox of cassette cases was taking 
p the rest of the floor space, it 
.■as pretty hard to gel through 
the door. 

The inlays had just arrived 
■r Power Blaster, one of 
Romik 's new programs for the 
V1C-20, and Lorraine Brind, 
the company's "girl Friday", 
was busy putting inlays into 
tte boxes and packing the 



Anyone who has played a 
Romik game would instantly 
recognise the Power Blaster 
inlay as one of Romik's. Rather 
than a glossy artist's impression 
of what the game is about, it 
simply carries a copy of the 

n display at some point in 
the game, painstakingly copied 
by Mike Barton himself. 

It's all pan of what Mike 
calls "the honest approach." 

iaid: "I don't believe in 
false promises. What you see on 

Front shows part of the 
actual program." 

The only indulgence the 
company allows itself is in the 
descriptive blurb: "The year is 

... you are the commander 
Venusian defence force 

Mike Barton got the idea of 
Iting up Romik while he was 
working as sales manager for 
Rabbit Software. He said: "I've 
always been into electronics. 1 
built myself a stereo record 
player before there were any 

:o records in this country — 

d to import them from the 
States. And 1 served an appren- 
ticeship in elect romec hanks." 

The first stage was to sit 
down and think up a plan of 

jaign — which, Mike claims 
took him just two hours. 

Honest packaging and 
honest advertising was one part 
of the plan. Reliability and 
value for money was another. 
And Mike aimed to offer a 
service to dealers, getting 
orders out the same day they 

The chance to put the plan in- 
bumped into Gerry Rose in Har- 

ineday. The two had known 
other since the days when 
Gerry was regional manager on 
Mike's first sales job. Gerry said: 

Pit< 2* HOME COMPUTING V. 



Why Romik 

says that 

honesty 

is the best 
policy 



r had i< 



e bank for 



There's too much deception in 
the software market . accord- 
ing to Mike Barton, of Romik. 
Candice Goodwin finds out 
what made this company 
decide to put its cards on the 
table 



them some working capital, and 
on September? 1982 Romik — Ro 
from Rose and mik from Mike — 
was launched. 

Six days later, a cheque for 
£16,000 arrived from a major US 
software company. Gerry said: "I 
never had to put my money in in 
the end. We took Mike's money 



Mike and Gerry are a sti 

mbination, one confident and 

troven, the other quiet and 

utious. But Gerry reckons "we 

find we complement each other. 

"Mike's the ideas man, the 
market assessment man — he 
deals with the programmers. 1 do 
cverthingelse — orders, despatch , 

"We're both salesmen, 
ic don't have to sell. The original 
idea was that Mike would be oi 
on the road all day, selling, while I 
would be stuck in the office 
answering the phone. I even we 
id bought a TV aerial - 
thought I'd be watching a lot 
' vision to pass the time. 
"Bui in the end, Mike didn't 
e time to go out on the road — 
1 1 didn't have lime to watch a 
single television programme." 

Apart from lhat. "the plan I 
Irew up 1 haven't deviated from 
>y one iota", says Mike. The soft- 
s-are range, which started wilh 
:ight programs for the VIC and 
now includes 14 titles, currently 
lis for a fixed price of £9.99 rx 

All the programs are written 




Mike Burton — nn false 




■Girl Friday' Lorraine Brind 



duplicated on both sides of the 
tape. On each side the recordings 
are at slightly different levels, tl 
allow for differences between in 



iiT 



ins that, because of the care 
l while the tapes are being 
copied, their customers report 
very few problems with loading. 



since [he company started 
trading. Of those, most have been 
perfect — people just 



folli 



liMtiir 



than a 0.01 per cent failure rate 
from the tape duplicating com- 
iiuses: "with thestatcoflhe 
country at the moment, if you de- 
mand something, you'll get it". 
The key to good quality reproduc- 
on, Mike says, is to produce a 
>od master tape in the first place; 
le master for their programs is 
made at the tape manufacturers', 
r strictly controlled condi- 

Homik's "honest approach" 
has apparently paid Off, "The 
response from retailers is that our 



anploys four full-time program- 
mers and 20 pan-timers, all work- 
' lg from home. Most of the part- 



Older programmers d 



The company is currently 
negotiating with one programmer 
who is just twelve years old. But 
Mike is quick to point out: "'We 
do insist that programming 



i. We don' 



grams a year. It's more important 
to turn out perfect games. One of 
our programmers is still working 
on his first game." 
To keep good 
Mike reckons Romik pays 
ideed. "They; 



per a 



■■; (he. 



re per program than » 
), But the programmers are tl 
ost important part of the con 



premises soon, the plan is 



problemsandbi 
it will ta 



islibra 



otofpi 



Romik 's avowed 
goal of having 25 quality pro- 
grams for every popular home 
computer. So far all but two of its 
games are for the VIC. Of those 
two, one is for the ZXS1 and one 
ROMIK SOFTWARE A* 

POUER&RSrER 




BBC. Speclrum, Au 
imodore 64 programs 

ilio (lijvlmi;, [hough, and 

Piinies iluwcn by Lynx tt 
software for its new micro 
got a fantastic deal from Lynx. 
They appreciate the fact that soft- 
ware sells computers". 

Romik's software is sold en 
lirely through retailers — Miki 



"We 



What of the future 
Mis'iwurc market? Gerry: " 
iliink iii-.yhody knows. But 
I'm the company pessimi: 



months time. An 
ly in the world in 



lODTOBODBIIIIDE 



ASTEROIDS, INVADERS, 
LSTRO SLED & SPACE FIGHTER. 




GOiOBifnBniiO 

SOFTWARE 

FREEPOST. SWANSEA. SA3 4ZZ 
NO POSTAGE REQUIRED 

Excellent dealer discour 



E COMPUTING WEEKLY IS 



V 



HOME ACCOUNTS PROGRAMME £6.50 



Sim pit rat 



BAUST COMPUTING CONSULTANTS 

31 Piik Line • Fareham • Hanll • P014 IflX 
Tel: Famham (0329) 281480 

PROGRAMS FOR TRS-80 






EDUCATION 



SPECTRUM/ORIC 
SOUND BOOSTER 

sound J*4ouiputsihecomputcr.si>mi,;J::-.v:::ii".iL:!i 'i'ih ui>i:i 
S;ii::id cl'iLvi-i [hen am bsconirolled from a whisper m a mar. 
3-on connections eliminate soldering. 

MUJld84measijrC52 l /:-\l>[ l -.-i:ma]idn; 4 uirftll<)se|wa[ep>™eisii)i|i[y. 

iponcnK an J ,wn rally W.95 im-hrjit nt !"■!. [lacking, CIC. 



Cheques/POto 

COMPUSOUND 

32 IJWRley Close 

Reddltch, Worcs. B980ET 






OPERATING S 




April 



THURSDAY 21 (12am — 7pm) 
FRIDAY 22 (10am — 6pm) 

SATURDAY 23 (10am — 6pm) 



Midland 
Hotel 

PETER STREET 



VISIT THE COMPLETE SHOW FOR THE HOME USER AND SEE; 
A COMPLETE crass section of all hardware and software available to the h< 
A FULL RANGE of home computers priced from £50 upwards. 
A COMPUTER ADVICE CENTRE run by independent experts for the answers to all your 




COMING SOON 

JUNE BIRMINGHAM 




KOMI: aiMI'LIINi; WEEKLY 19 April 



BBC PROGRAMMING 



As well as displaying the standard 
ASCII character s«, the BBC 
micro allows user definition of a 
further 3 2 characters. 

These characters are defined 
using ihe VDU 23 common d. as 
described on page 384 of the user 

Each individual character is 
plotted on an eight by eight grid. 
Figure 1 shows how one of the 
characters is produced, in this 
case, the letter A. 

Using the VDU 23 com- 
mand, any combination of pixels 
can be plotted to create a user 
defined character. Figure 2 
demonstrates how a typical space 
monster could be produced. The 
command to achieve this would 
be: VDU 23,224,195,66,255, 
153.255.231,255.102 

The figure can be considered 
as eight rows of eight pixels. The 
numbers along the top, are the 
numerical values of each pixel in 

end of each row is the total value 
o f the plotted pixels in the row . 

The nine numbers following 
Ihe VDU 



rowl95.-wcondrow66etc.etc. 

With a little practice, the 
VDU 23 command is very easy lo 
use, when defining individual 
characters. 

lious if you want to define a 

s of characters for use in a 

panituliir program. My character 

neraior program was designed 

enable a set of characters to be 

oduced with ease. 



Numerical values of the character 
are continuously updated and 
displ ayed alongsi d s t he grid . 



A set of defined characters 
lay be saved on tape, and recalled 
iter foruseinanoiherprogram.il 
: therefore possible to define any 
umber of character sets for par- 
ticular applications, and store 
' ion tape. 

The program is vers easy to 



prompts are includi:! in the listing. 

Please note that whilst character 
imbers 224 to 255 are normally 
ailable for user definition, the 



Tune in to 

lots more bbc 

characters 



create more characters the 

easy way on your BBC micro. 

Geoff Turner explains how and 

presents a character generator 

to type in 




program Itsdl uses characters 224 I The program uses appro: 

and 225. and the program will in- imately4K of memory. It runso 
form you that Ihe MM available amodel Bin Mode I, but model 
characterise fact 226. I usersma 



.■lisiill,; 

The v 



2andcolour3 



es are: CH°fo 
currently being 
defined, LCfn last character 
defined, CHOICE% the i 
entered by the user when promp- 
ted by Ihe menu, X°/i Y°7o Xa 
coordinates of Ihe 8 by 8grid, OT> 



in fort 






G, GS used lo GET inputs from 
keyboard, B(array) nun 
values of each column of the grid , 
S(array) numerical vnlu' 
oftheSrows. 

How il works 



10-220 form the main 

the program to 
the various 
procedures as 
selected by (he 
user from the 

230-390 menu of five 

400-970 define character 

980-1150 display all 

defined 

1160-1240 save character 

1250-1340 load char; 



1350-15 






vertedtoolhcr machines . 

gram could be used, but con 
siderable changes would need tt 
be made within the procedure fo 
defining characters. However, 
have included some guidelines for 
those people who arc unfamilia 
with BBC basic. 

PROCEDURES may b 
substituted with GOSUBS 
GET and GETS may be replaced 
with INPUT or INKEY funclions 
CO LOU R changes test colour 
■FX 15,1 FLUSHES keyboard 
buffer priorto input 
VDU 19 changes aclual colours 
used in any mode 
VDU 23 command used lo s 
■isiTilcriiifd characters 
VDUTmakesashortBEEP 

The majority of the | 
gram uses fairly standard Basi 

WEEKLY 19 April 1983 Page 19 



BBC PROGRAMMING 


:ofiE(- i:Hisftfti;-Fs-_ generator 

200M0EJE 7 


970ENDPR0C 
1010DEFPROCdilH*V 

L L.VF = IV''.'.|'. =!■.-.,.. ■FRE:E. jFOCE EAR TO RETURN TO MENU" 










-'.'■i.'iFOR0Ommi 

7::.ipbih;oS'':.;i:-;. l.-ja: i:harhi:-lr- : ' : fi-in tape" 

ili'PR:rnl.l£.:'-. i 'i ; ■■:. ::^..--| DEFINED .HBEACTERS" 
340PRINTTABH. Ill I "5. EIIT PROGRAM" 

390ENDPR0C 




1170REH ... SAVE CHARACTERS -•■ 


liSk™""--' 5 '""•"• -""-• 




12SOD£FPROCl°<d 

1300RRINTTAB(0. 109"SET TATA TOPE IN POSITION" 


4;'.>iiLI FROCdlf ln« 

SSOCOLOUR 3IPRIN^^AB^22,^11I1■'0 , ■ 

S'.i.'NEJT 1 NEXT 

li'ir.l ■<:=-k:N-TAP!>A.Yli:C.HR« 142)1 

67<ja»«3ET» 
690COLOUR 3 


] I.V.ii-iiEt; ]F & ■ 15 THEN 1BO 
[ 5-v,. LOAD -CHARACTERS" 


1360REM .. INITIALISE VARIABLES « 


SJsiiiSu...^..,.-,, 




"TfSjI^cfS JVo'o O 


1300ENDPROC 


1520REH ..." EIIT ROUTINE ...— . 


1610RRINTTABIO. 19) ;CHR* 11369 "PRESS BREAK KEV" 


16S0PRINTTAB(5.2> >CHR»(130) IOOIIH1I : "CHARACTER SENERAT 
1700PRINTTABIB.il 1 CHR»< 131 9 1 "b. SlofI Turn.r." 

: 'tfniiHI rM ■"■!"■;!■*'■■■:!" ■ i ■: .j' '. -■■>■■; ■ -'■'< ■ -•■■ - 

1790PRINTTAB(0.20)"lh.. Dick lor til in clnir •nirill.' 
1900PRINTTABI3. 2t) ICHR* 1 136) lCHft»U349 1 "PRESS SPACE BAR 

1320ENDPR0C 



PiEt 30 HOME COMPUTING WEEKLY 19 April 1983 



FOR THE FIRST TIME ANYWHERE 
IN THE WORLD! 

ACCURATE ASTROLOGY 

ON YOUR 16K SINCLAIR ZX81 
AND 48K SPECTRUM 

All Ihe natal chart calculations villi aspects for £15 or 
betlcr still, Ihe natal chart, aspects, progressions unit transits 



mJBSlla 



n!ASTROCALCpr 



id Genie/Tandy TRSSOco 



i. H?flsHP3 8bR. 



DON*TMISSTHIS 
INCREDIBLE OFFER ! 

50 GAMES 
£995 





ZXBt LY\X 
DRAGON 

ATARI vioay 



ACORIMATOM 

BB0AIB 

SHARP 

ORKM 

MEWBHAIM 



1 endow cheque/ P.O. 


Itane y" 




•cm /0»V 







SOFTWARE & MICROS 

NOW IN STOCK 

AT 



COMPUTERS 1 



A SPECTRUM 16K&48K 
Commodore 64 
ATARI VIC20&ORIC1 

400 & 800 

Software by: 

_ Quicksilv er _ 

BUG-BfTE 

IMAGINE 

Over 200 Software in Stock 



IH;.\t;0\ jnd TANDY si 



COMPUSENSE LTD 
Telephone: 01-882-0681/6936 

P.O. Box it,'). 286d Green Lanes, 
Palmers Green, London N13 SXA 




GAMES WAT ARE 
HARD TO BEAT 

WhyTBecause every single Romik game Is professionally written 

in machine code to giveyou all the thrills and action of a fast-moving 

arcade game. Every one recorded on top quality tape, most of them 

playable either from the keyboard or with joysticks. 

A lot of thought and development goes into every game -and we 
guarantee no bugs to drive you mad, no Infuriating gaps to interrupt 
your fun. 

Whether pitted against Invaders from a I ten worlds, tracking 
hungry sharks or frantically stalling the melt-down of a nuclear reactor 
you can be sure that if it's a Romlk game you'll have a battle on your 
hands. The kind of battle that leaves no room for mistakes or hesitation. 

COMING SOON 
Romik promise al least one new game 
every month, and soon there'll be Romik 
games lot theAiari. Spectrum and Lyra 
computers. 



Every game purchased brings a free entry 
into the national competition to find the 
Supreme Champion, and free entry into 
the annual Romik Grand Master 
competition with its fantastic prizes. 



We're always on the lookout for new, top 
quality machine code arcade games for 
any machine. If you have what you 
considera marketable game, let usknow. 
Nobody pays highet royalties than 
we do. 



For further details of all our games and a list of stockists complete the 
coupon and send It to: Romlk Software, Z72 Argyll Avenue, Slough 

ALL GAMES COST £9.99 

RGfTMSGFT'dJRRE 




Power Blaster 
Space Fortress 
Shark Arrack 
Atom Smasher 
Space Attack 

Multnounrt Synthesiser 

Expanded VIC ZO[3K.8K or I6KJ 
Time Destroyers 
Moons of Jupiter 

BBC [Model Acs 81 
Birds Of Prey 

Dragon 
Strategic Command 

ZXS1 



I COMPITINU WEEKLY I? 



ORIC-1 PROGRAM 



On your bike . . . and 
race for your lives 




Electronic light cycles offer [he chance of escape In Tron, Ihc Wall Disney film which lakes place inside a compuler program 


If you have seen Wall Disney's 
Tron, you'll have no problem 




4000-4050 compuler wins 


laying my Light Bike game lor Ihc 
Oric-1. 


Climb on your Light Bike, open 


7000-7030 draw playing area 
8000-8070 set variables 


The idea is 10 move your 


the throttle wide and try to 


9000-9150 instructions 


motorbike around [he screen 
without crashing into a wall or into 
he trail that your bike leaves 


beat your computer. Peter 




Shaw wrote his game for the 


Variables 




Oric-1 


CV and CH arc X and Y co- 


In this game you play against 
your computer — and it's out for 




ordinates of the computer's 




bike and 


he glory of victory. 


Your bike is controlled by the 




HV and HH are the co- 


There is an added feature: line 


cursor keys on either side of the 


position is already occupied 


ordinates for your bike 


170 lakes out random pixels. 






IIS i.s human's score 


creating another exit. . .if you're 




170 erases one pixel from play 


CS is the computer's .score 




How it works 




M determines the direction of 


When the program is run it 


50 sets PAPER and INK 


180-250 update computer's 


your bike and 


vill display hriul' instructions, the 


colours for lower pan of 




IN' decides the direction of ihe 


screen will clear and ihc game will 


screen, then puts computer 


270 continues loop 


One's bike 






Subroutines: 


CS is the string holding the 


You are given 10 lives with 


HIRES mode 


1000-IOSOyouwinapoint 


computer's points and 


which you must defeat your One. 


~(l div-t.s for keypress 


2000-2080 compuler wins a 


HS holds the number of your 


rhe computer also has 10 lives and 








• Ji/itTiiiijitrd to win. 


for your bike 


3000-3050 you win game 


A is a general control variable 


10 RET ***** LIGHT BIKE ****H 


170 LI=0:CLIRSET INTCRNDC ]D*2363 1 ] , INICRNH 


20 REH ** PETER SHAUl 1923 *** 


f 11*383+51 ,0 


30 TEXT 


180 IF U=S THEN GCSUB 1000 


40 GOSUB 9000' INSTRUCTIONS 


190 C1=CU:C2=CH 


50 PAPER0:1NK2:HIRES 
BP 3C1SUB 8000' SCREEN 


200 IF N=8 THEN CU=GW-1 


210 IF N=9 THEN CU^CUi-1 


70 KS=KEY9:1F K*="" THEN 90 


220 IF N=1B THEN CH=CH-1 


E0 t1=fiSCCKS}Jj=0 


230 IF N = ll THEN CH=CH+] 


90 IF 11=8 THEN HV=HW-1 


240 C=P01NTCCU,CH) 


100 IF 11=3 THEN HU=HU+1 


250 IF C=-l THEN N=U>8iCU=Cl :CI J =C2 ;u- U+l 


110 JF |"=10 THEN PK=HH+1 


:G0T0 180 


120 IF [1=1 ] THEN HH=HH-1 


255 PLAY 0, 1,1, 10 


130 B=POINTCHU,HHJ 


260 CURSET 01,0!, 1 


140 PLAY 0, 1 , 1 , 10 


270 GOTO 70 


150 IF B=-l THEN GOSuB 2000 


1000 EXPLODE 


16K J=l :CURSET HU.HF 


.1 


1010 HS=HS+1 





HOME COMPUTING WEEKLY 19 Aptil 



ORIC-1 PROGRAM 




1020 H*-H*+'"#'' 


7010 DRAU 0,108,1 sDRfVJ -238,0,1 


1030 ,;LS:HIRES 


7020 DRAU 0,-100, 1 


1048 PRINT "Human '" iHS. "CompuLet r iC4 


7030 RETURN 


1050 GOSUB 7000 


8000 CS = " " :h*=" ,p 


I860 CU=f]0:CH=100:HU=160:HH=100 


8010 CU=60:CH--100=HU=160:HH=100 


1070 IF PS=10 THEN GOIO 300B 


B020 J-l :HS=0:CS=0 


1080 RETURN 


8030 CLS 


2000 EXPLOIT 


8040 GCSUB 7000 


2010 CS=C5+1 


8050 PRINT "Human " 3H*> "Computer "iC.s 


2020 CS=Cs+"=r 


8060 rl=S:N=3 


2030 CLS;HIRES 


8070 RETURN 


2010 PR INI "Human '■ iH*i "Computer " ;C4 


9000 TEXTiD-S 


2050 GOSUB 7000 


3010 A=l 


2060 W=50:CH=100:HU=160:HH--ie0 


3020 PRINT :PRINT:PRINT:PRINT 'PRINT 


287'0 IF CS=10 THEN GOTO 4000 


9030 PRINT"Can you outride me, the great 


2080 RETURN 


est bike" 


3000 TEXT=CLS 


9040 PRINT"! ider ? Well I challenge you 


3010 EXPLODE ;EXPLODE:3AP EXPLODE 


555" 


3015 FOR R=l TO 10=FOR A=3 TO 7 


9050 PRINT 


3020 PLOT 13, 10,CHRstfljT"HUnflNS TOU WIN 1 


9060 PRINT " Use the cursor controls to 


3025 Hftll 4 




3030 NEXT A:NEXT R 




3010 GET AS 


9070 PRINT'bike, Con the right hand side 


3050 RUN 


3. " 


4000 TEXT:CLS 


9080 PRINT :PRINT 


4010 EXPLODE 'EXPLODE :2AP:EXPLQDE 


9090 REPEAT 


4015 FOR R = l TO 10:FOR f)=l TO 7 


9100 PLOT I5,2,CHR«Cfl)+"LIGHT BIKE" 


4020 PLOT 13, I0,CHR*W+"'HUliAH! 1 WIN'' 


9110 PLOT !0,20,CHRS((TJf' , PRESS ANT KEY T 


4025 WRIT 4 


PLAT 11 


4030 NEXT fl:NEXT R 


9120 WAIT 3 


4040 SET AS 


31-30 A=AH:1F A--8 1HEN A=l 


4050 RUN 


9140 UNTIL KEY*0"" 


7000 CURSE T 0.50,1 :ORflU 238, e, 1 


9150 RETURN 


Fait M HOME COMPUTING WEEKLY 19 April 1983 





JOYSTICKS 



ZX Spectrum /ZX81 



BUILT, TESTED & READY FOR USE 



,L PROGRAMMING, Joystick I simulates 
' IMMEDIATELY COMPATIBLE WITH ALL SOFTWARE 




I FREE 'VIDEO GRAFFITI' f 



r VIC20 

DIGITAL 
CASSETTEDECK 

at a realistic 

PRICE 
£21-99 

A/fow7Days 
Delivery 

FULL YCOMPA TIBLE 
DESIGNED BY OUR OWN ENGINEERS 
REQUIRES NO ADDITIONAL HARDWARE 
SIMPL Y PLUG INTO YOUR VIC! 




Sendto: 

DA TEL ELECTRONICS 

27HOPESTREET 

HANLEY 

STOKE-ON-TRENT 



FROGLET 



Have you happed, jumped or swum ai 



;s the river yet? 



TROGLET1 



No, then where on earth were you last month? You missed our unbelievable Froglet game for the BBC Micro and it's 
probably too late to get a copy from your newsagent! Despair not, we have the program ready and waiting on tape to 
save your fingers the chore of typing in all that incredibly complex code so, even if you did see the game in our April 

issue and were daunted by the task there's absolutely no excuse for not getting a copy now. 
The program follows the style of that arcade favourite, Frogger and you must negotiate your green coloured friend 
across first a road populated with fast moving cars and lorries and then over the river by means of turtles and logs. 
Frogs may be able to swim but if your turtle decides to sink you'll be swept away by the current. Once across with 
three out of your four frogs you'll be able to score bonus points by catching the flies that appear over the river but, 
take care that you don't run out of time! 



All in 



a great, fast moving game that any number of people can play and, just to add to the spirit of the thing 



the program stores the top ten players' names si 



;. How much are we charging for this 



II masterpiece? Just £5.99 all inclus 

To order simply fill in the coupon and send it with your remittanc 

ASP Softv&re, ASP Ltd, ,45 Charing Cro; 




l»3t HOME COMl'l.-] INC Wl-LF.kl.Y l< 




1 1 liLKUDi iicKiZ 

MICROSPHERE COMPUTER SERVICES LTD 

72 ROSEBEHt Kn.\l> LO?<tX)Hni02LA 

TELEPtlOHE 01-883 941 1 



MNICALCMBKSpectr 



X-SIDEPRINT iFcr S D ec1turji or 



(Stale vers* 
HOTF0OTU6K! 



HILTON COMPUTER SERVICES 
LIMITED 

The renDwneO PERSONAL BANKING SYSTEM now available lot 

ZX 81 - ZX SPECTRUM - DRAGON 32 



gl RECONCILIATION module a* 



PBS ZX81 £8.95 — ZX SPECTRUM £995 - DRAGON E9.95 

(16K) (48K) (32K) 

REC (for use with abone) E5.00. 

ORDER specrfymg lor which machine: by POST Item 
HILTON COMPUTER SERVICES LIMITED hcht 
14 Av.ilon Road. Orpington. Kent BR6 9AX 
OR al the POST OFFICE using TRANSCASH ACCOUNT 30? 9557 

— YOUR PBS IS NEVER OUT OF DATE - 



J5Cfl SOFTWARE 



PROGRAMS FOR T) 
ifcwalloftighlin 



I VK ■ 20 (UNEXPANDED) 

K-.i;uiit->iiin:ii:l!UidL'. i!iiikn S ;ai 



withsutxrb_lDgrjpai«forma>Jmumeffixl. £S.« 

reran ,£ bomb the cities flat in order to land. Difficult) 

g. Super luy.U re-, liuphi,-- .V i-\pknni; 



INVASION Sliooi Ilk- aliens as they descend from 1 
yimreiih. IJiflcrcraikLlifcitKtiigliwii'JiN'lai.ki 

OTHELLO Can you beat VIC at ElHMa^iraim,!!™ 



■e:VU ■]*>■!, a mean game! 
.outrorittemtnetldaiasi-oiitrjiooutguntheei 

4 of play. EvreiiJeil -crecn Ji.pl hi Miih hr,:li 



nan 



4Two 



iMi'al.Lj ■j..:ii-.-. i..: :Iil rUriiilj. 
iinsion. ftillieanie^ii.lLiileriilN/eer.ireii, displays sound. 
GRAPHIX Design your -.inn riigri it-. eliaiLielers. Draw up 10 4diff. 
eliiiraerers simultaneously, [rubles lull rise (if tliu ponerllllVIC grar. 
Modes include: DRAW; ERASE; SET S UNSET, i 



JSCfl SOFTWARE 

58 Whitchurch Are. 
Enter EX2 5NT 



E COMPUTING «. 






VIC-20 PROGRAM 



Make a date with your 

VIC-20 



The easy way to calculate dates. Just type in Kevin 
irving's program for the unexpanded vic-20 



My program will calcul ale acalen- 
' ar for any year required — and ii 
should easily convert 10 another 
ithabout3Ki "" 



Most of them 


n mv program 


Mivipi 1 . dix'oraieth 


|irivi.!in null 


colours, reverse field lines and 


symbols. They car 


x ignored, or 


you could odd youi 




Here is what 


some of litem 


Kaa-* Held Q i 


cursor down 


Reverse field heart is clear screen 


Reverse Held lefts 




test and up arrow for green 


Ku-uTscsleldRisn 


■:i •-. i ■ ! : 1 1 liikl 




off 






>oIil! Iiiimuk's 


are just decora 


ve symbols. 


Almost all the 


POKES, apart 


from [hose above, 


re for colours 




languages have confused many 
people who own other 
because of 



1 REMiEXSXZXZXXZXXZSn 

2 RErti^mflUIIOiT 

3 RE KSXSSXX SJX XSISSX i 

5 REM»H*»imiifflli![«:j 

» rem; 

• REMimsioiiimiia 

3 REM 



3 CLp:REsT'-iPE- D : HML ■. U :■ , Iifl ■-. 12>,M0f'. 12> ■ FuRI=0TOll : FEfiliJ -ML a >=J : NEXT 
20 FORI=0TO1I : FEmDDRv 1 .' HE: :T FORI=L'T01 1 . PERI'MOi < I > -NEXT 
■ifi T:-.=--T.?:ii:fi : PR I HTCHPT ■■! S- ■' f. HP f ■ 1 -',2 ■' 
46 60102600 



1O00 Vi=V-1968 

1010 LV=INT<VS/4) 

1020 DS=VS*365+LV+ML<M)+r 

1©3Q DD= IHT < ■- DS/7- 1 HT ', IG/? ':> >*?+ . 3G1 ) 



Pigi 3B HOME COMPUTING WEEKLY 19 April I9B3 



VIC 20 PROGRAM 



1040 IFVS, , 4=INTi: VS. ^ .:■ Ml IDH- J2 rHt£NDD=DD -1 IFriii:0THENBD=6 
1050 RETURN 

:o:o KEriH4Hu:«a4gaaii 

1100 FRINT 1 '^".: F0r'E36379, 29 

1119 PRINT"! BCALENEAR FOR" ■PRINT£PCC<17-LEN<PS»«1» V2>HD*-(I1)" "VS 

.1 IS. . 
W, -NEXT 

1140 PRINT "J;M 1— (■ 1 f—4 (—Si ...:.", 

1150 RETURN 

1199 P.E\W9*iMA m MlXlti:\ 

1200 V=5:Fi:iRD=1T0lih.:m.:. GO3UB1008 

1209 IiiMSTRfin... :H* = PIGHTJ..ri*,LEN'.:r.f;.-l.:. : IFLEIKBS> = 1 THENrjJ="0"+B$ 

1210 FCiRI = 0T01 P0S:ETS+V*22 + . IiD/7-INT<HIl-T> >*2t + I + 1 . H-.r (MI US' B* . 1 + 1 . 1 ) J : NEXT 
1220 IFBH=STHEMV=V+2 

1239 NEXT 
,,1250 PRINT'fcfti i IPRESSi- II C=CONTIHUE M-MEHU I 

126S PRINT"* 1 '"; :pOKE138,S 

127Q GETfl*:IFR*="M"THEHRUN 

12S0 IFfifO"C"THEN1270 

1290 RETURN 

mh: .urn. > ;u: :■ 

1360 M="" 

1316 GETR*:IFLEH!:fl*;-=0THEH1310 

1311 IFHSC':.Ht..'::t;5uR:HSi:':HJ-V:-90THEH1310 

1220 PCiKE7Sl,lS PiJKE7S2,PO:pi>PO+i:2:VSb5520 FRIHTfi* : E*=E*+Rt 
1330 IFPO2FPTHEN1310 

1340 FORI=0TO11 : IFB$=LEFT*aiOJ < 1 ) , 3>THEN2=I ■ 1 = 12 -RETURN 

1350 NEXT:pn=Rr>3:FQPl-31T02t-3TEF-i P0KE36379, I NEXT . P0KE782,F'u ■ SV365520: PRINT" 
":GOTO1300 

1S99 REii^^^^mmun 

2000 PGKE36879,26 

2610 PRINT \T« STCflLEHBRRT 1 PRINT" il ' '" 

2015 P-RlNT ,, 5SnUTH0R : KEVIN IRVING.""; 

^Zf- PRIHT"ffli FILL III EVER 1 / -.Pi IRREW1" 

2030 PRINTTflE<9>"»EflR":pRIHTTflBC8>"Ii 1" :PRIMTTAB<8>" I I" :PRINTTfiE<8) " >-~ 

2048 V*="":PG=9 

2050 GETflJ : IFLEN<h*)=0THEH2050 

2051 IFRSO'.Ri .■ .:43ORh:;;C<R$v^7THEN2050 

2060 P0):E7S1,3 POKE782\Fu:SYSb5520-YS=7i + A* PRIHTflf 
2070 IFP0<12THENPi>Ri>1 L.OT02050 
2075 V=VflL<Vt> 



2030 PRINT "M«i FIRST"' PRINT" MONTH" : PRINT" If . " PRINT" I IMPRINT" ' '" 

2030 P0=2 ■ FP=5 GO3UB1300 : D1=D 

2100 P0KE 781 , 12-P0KE7S2, 16 3YS65520 : PPINT"iFINfiL" PRINTTABa6> "MONTH" PRINTTAB< 

2110 PRINTTMEatO" I I" :PRINTTfiB<16)" ' "' 

2120 P0=17 FP=2y GOSljE1300:D2=D 

2130 iFD12=B2THEN2200 

2140 PRINT".tt.THE MONTH::- FRE WRONG " : FORI =0702000 : NEXT I 

2150 P0KE731,12 PGKE782, ■:.Y365520 POf-I=0 104 : PRINT" " : NEXT 

2I-J0 PRINT" "■FOKE7:E;;,lO:POKE732.O:i.VSi-5520 

217U GOT028SO 

2200 Pul:E7Sl,:2:pOKE732,0 SYSS5520 

2210 PRINTTABWflSBO YOU" ■ PR IMTTRECS.:. "SlISH" PRIMTTfiEa0;":JTO" :PRINTTHE<8>"SCH 
RNGE" 
2220 PRIHTTflE';T:.' , ':-fiHVTHING" ■pRIHTTREcuJ-'ai-V/N^" 
2230 GETH*--IFfi*="V"THENRUN 
2240 lFRiO"H"THEH223S 

2250 F0RM=:i;TJD2 G03UE1 1 00 GuiiJEl2"i0 NEXT-RUN 
~:EI1HB]gNKIHHaKI 

63000 BRTR0,3i,59,90,12O, 151 ■ 131 . 212, 243, 273, 304, 334. 31 .28.31 .30.31,30,31,31,30 
,31,30,31 

6300 1 DATA JANUARY . FEBRUARY, MARCH , RPR I L , HRV , JUNE, JUL V , AUGUST . SEPTEMBER . OCTOBER, H 
OVEMEER 

63002 ERTREECEMEER 

3 WEEKLY !9 April 1983 Pigt 3' 



AT LAST!! 

A ZX81 RAM 
PACK WITH 
A MOTHER- 
BOARD 

AND 

A FLEXIBLE 
CONNECTION 

WITH 

16K RAM FOR 

ONLY. 

£24.95 



SPECTRUM 
SOUND ) 

AMPUFTER ' 

WITH SPEAKER 

MAINS POWERED 

WITH SAVE/LOAD 

SWITCHING 

- ONLY £8.95 



SPECTRUM 

MEMORY 

UPGRADES 

AN EXTRA 32K FOR 
ONLY 



INTERACTIVE 

INSTRUMENTS LTD 

INTERACTIVE HOUSE 

GREAT CENTRAL ST 

LEICESTER 

-I LEIC. 532167 

DISK DRIVES I 



Attention 

Vic 20 Owners 

LYVERSOFT 

HbfiQuditu WINNING 
y J GAMES 

Simply complete the coupon below, 
indicating the number of copies 
required in the boxes provided, and 
post now to: LYVERSOFT, 
66 Lime Street, Liverpool L1 UN 
or ring our Hot Shot Credit Card 
Sales Line on 051-708 7100. 



SHUGART SA200 
40 TRACK DRIVES 
COMPLETE WITH 
POWER SUPPLY 
AND STEEL CASE 
a FOR ONLY 

L £199 

*l FOR BBC 




Demon Driver ® £5.95 each 

Lunar Rescued £5.95 each 

Hearts & Diamonds/Hi-Lo (2 pack)C" £5.95 each 

Nuclear Attack/Grand Prix (2 pack) @ £5.95 each 

Applebug/Crazy Climber (2 pack) I- 1 £5.95 each _ 

Space Assault <& £5.95 each-Foi 3K & BK VIC-20 





Please debit mv Access/ Bare lay card (delete as necessary) 




?'?....! 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 


VIC-20 


1 enclose Cheque/PO for £ 




Address 



ii ^ VIC-Z0 Machine Code Monitor ® £14.95 each BCT1 jj 



IIOM1- I OMI'l. I Mi \S 



zx a 1 ADVICE 



iryourZXSl geis so hot thai if 
11 not load I6K programs, or 
it builds up so much that you 
ve to turn it off. then fry my 

supply provides 
much more voltage than is 
required by [he machine and 

controller has to dissipate a 
of energy, 









a of 



This 



if is dispersed by a 
sink, which is a small 
nium plate bolted to ihe 

found that this on easily 

in place, and a much larger heat 
ik pul in ils place. 

This then spreads Ihe heat 



uses all the trouble. 

! found lhai after replacing 

e heat sink, and drilling four 

. larter-inch ventilation holes in 

the back of the ease, i could 

leave the machine on Tor nine 

with no harmful effects, 

running could lead to complete 



How to keep 
your cool 



Heat can make ZX81S very 
temperamental. Geoffrey 
Cenever has found a cure. 




Although replav'iiiL- ilic In 
— : should not damage t 
machine, you should not op 
if still under guaranK 
guarantee. 



This i> 



what I 



1 Remove rubber pads and 



•I Carefully undo the larger 
holding Ihe heat sink 
noiice how the sink fits. 

aluminium plate (he s 
gauge as (he present I 
sink. I--.- ensure (hat (he 
ruing tag matches exactly 
thai of the old heal sink. 
There is a very slight bend ai 
(he lag lo prevent ihe heal 
sink from touching the case. 

fi Insert the new sink in place of 
the old and boll firmly into 
place. Check carefully, 
ensure case is clean. 

7 Drill four holes in case at ll 
back to increase ventilation 

8 Replace base taking ca 
again with the keyboai 

Finally, if having read th 
you feel your courage is not l 
io the job, lake heart from ll 



SIR COMPUTERS LTD — CARDIFF 

Agents for Acorn, BBC and TORCH Computers 



BBC Microcomputers 




















I'lv rjis{ ';:.: 'i.iil , ■■.•:;&:: jjIU ti:il1 r -l U C?3 






£110.00 


Please telephone for L p 'o date ntormai On on fteste 


■eietexl. 



Jibed above, a t 

J a r:!]iv.|ileir> 
■-•■ IN' only micf 



TORCH Computers 



The TORCH cancomr 
Gateway facility ol Pre 
publicdatabasesyster 



inZ-aOcgmpulei. 

til.llf.l' V.'lt!!. .-.in I 



i another TORCH 



■■■' C'-.lll|:'i;1'V' via Pri'M.;' I 

■ ■■■:<•: I :iy i..nv,iic .noa-ns-n 



SIR Computers Ltd., 91 Whitchurch Road, Cardiff. Telephone: (0222) 21341 



HOME COMPUTING WEEKLY 



JHE 



B.B.C. MICRO SOFTWARE 



MPUTEfi SHOW 



MP 

SOFTWARE & SERVICES 



DRAGON 32/BBC MODEL B/ZX81 16K 

CHAMPIONS! 





QUALITY 
^F PLASTICS 

Introducing our 'new' video games cartridge albums. 
Available In packs of live in an attractively designed outer 
box. Each album will take two cartridges designed to tit 
Dragon 32, Atari. Parker. Activision, Spectravision. Imagic 

AT THE SPECIAL PRICE OF 

£14.75 per pack inc. postage. 

Orders la: Quality Plastics Supplies. 
13 Summerstown London SW17 OBQ. 

Nunbw of packs -ecjired 

Creques enclosed tot E 

ALL TRADE ENQUIRIES WELCOME 



{ f 42 HOME COMPUTING WEEKLY 19 April 



Adventure 
game gave me 

the bird 

read all ihe reviews with 
interest. Your review of Firien 
Wood caught my attention, and 
I duly ordered a copy, but [ 

I progressed through the 
caves and into the wood, 
despatching various nasties 
along the way, got through the 
castle, found the Golden Bird 
of Paradise, freed il with 
quick wave of the magic 



LETTERS 

Send your letters to Letters, 
Home computing weekly, 145 

Charing Cross Road, London 
WC2H OEE. There's £5 worth of 

software for the best each 
week, so don't forget to name 
your computer. Queries cannot 

be answered on this page. 



vkhin 



jived i 



urcr had ninth JhiL-nln 
is hhrii.'ular advent 

very good value t 



hur.f- h 
Siniihn iHIV 






My Tl beats the 
VIC hands 
down 

a proud and satisfied Tl- 
99/4A owner. Proud because I 

under £200. It makes me 
wonder'why people go out and 
buy a V1C-20 instead. 

Boih machines are about 



The Texas cartridges 
iter quality than the VIC 
rtridges, too. The TJ-99/4A 
erallamuchbeti 

Satisfied, bee. 
t Horn, 



: I'm glad 



Weekly I 
machine. You are the first to 
include programming tips for 
the T1-99/4A — you could be 
even more ahead by doing a 
review of Tl-k99/4A games. 

Could you also give my 
thanks to Mr Gray and Mr 
Power for excellent programs? 
N.P. Balram, Wendleburj, 

We will be including some 
software reviews for the Tl- 
99/4A in future issues. 



Oric software 
troubles, too 

l have had the usual problems that 
others have encountered after 
ordering an Oric-l. However it 
now seems to have gone a stage 

issue 2 of your magazine, I 
ordered Orie Flight, after first 
telephoning Tansoft and being 
assured of immediate despatch. 

I received a confirmation of 
order dated March 17, and after 
two more phone calls to Tansoft 

resemblance to the loading in- 
structions for an Oric, so 1 return- 
ed the cassette, phoning to say 1 
had done so. We will forward you 

the reply. 

Two more phone calls have 
made, with promises of im- 
mediate despatch. Today I was 



tell me whal was wrong with it. 

However my local Brainwave 
shop tells me that Oric software 
from Tansoft is not yet available. 
Have 1 been conned again by 
Tangerine? 

Still, the last laugh m 
mine. I was sent a 4SK Oi 
loan for the price of a 16K, and 1 
shall use all their delaying tact 
false promises etc before 1 s< 
them another penny. 
P.A. Foster, Leislon, Suffolk. 
/'mil Kiiiifnitm, of Tansoft, h 



•The 



x-up a 



because we're stilt product! 
grains for the Microlan as well* 
the Oric. and Mr Foster probably 
got the wrong tape because lie 
didn't specify which machine 
wanted it for. Otic vijimur c. 
utility is available from Tansoft 
w have hundreds of cassettes < 
ting here. But given a n, 
machine, it does lake time to i_ 
/initlnclHi/i runnmii smoothly. We 
deeply apologise to Mr Foster ft, 
the delays he has experienced, and 
mil y.ct the tape off, 
away. I will also be writing to Mr 



A case of 
mistaken 
address 

were very pleased to see the 

review of our programs Star War 

' Buck Dodgers on page 41 of 

the tirst issue of Home Computing 

Weekly. 

However our address was 
printed as 46 Oxford Street, Lon- 
iWl.whereaswcareinfactat 
Oxford Street. 
We would be most grateful if 
would mention this to your 

The Software House. 146 Oxford 

Street, London Wl. 



Connect up a 
printer 



Your review of the Tandy 
CGP-115 primer slates tht 

eluded in the manual. The 
following are the conne 



STROBE 
DATA 1 
DATA 2 
DATA 3 
DATA i 
DATA 5 
DATA 6 
DATA 7 
DATAE 
ACK 
BUSY 
PE 
BUSY 



■ successfully interfaced th 
printer to my Microtan 65 using 
the parallel interface, and ha 
to problems with it ev 
after hours of listing out my t 
re library of programs. A g£> 
texpenstve printer/plotter, i 
dispensable for machine code pr 
grammers. 
George Hood, Port Selon, East 



E COMPUTING WEEKLY [i 



HOME COMPUTING WEEKLY CLASSIFIED 



01-437 1002 
EXT 213. 



Lineage: 

35p F 

25pp 

Semi 

Ring 




Send your requirements to: 
Bridget te Sherliker 
ASP LTD. 

14S Charing Cross Road, 
London WC2H PEE 



IHiST COVfcRS available for am 
:omr.uler. primer, etc. BBC. Tl, 
ipson. £3.95; Dragon, Atari. 
Vic20, £2.95; Sharp MZ-80A-K. 
■A.9S. For others please [llKJIU- or 



;e. 8A The 

Bradley. Trowbridgi 

1)2214 4425. Alio ma 



CASSETTE LEADS * 
WITH MOTOR CONTROL 

Oric 1 £2.95 

BBC £2.95 

Lyn» £2.95 

Dragon £2.95 

State Din to Din or Din to 2 

Jacks 

Te.as TI99/4A (single 

recorderl C4.9E 

BBC software: Grafstik 
£7.95; Grafkey - £7. 95; Graf 
disk (disc onlyl-£12. 95; Syn. 
thesiser - Cassette £7.95 Disr. 
£10.95. The Key (disc only! 



BOOK SALE? 




KldWNEKS-. 



I'll I I — 

computers bough! and sold. Apple 



KPROM SE)i\l( US 



COI.OUR MOM TORS 

^■.vil^illwk-lci.L-d !i.r',.sL 



eds Lid. Dermal Brei 

e. East Bramhopc. Le 

Td! 0532 679964. 



tirl 4IJ0 48 K recorder, bask + 3 
irries £250. Texas TI^49A speech 
mlhcsizer £130 o.n.o. Scisus 
hess compute, mark V £120 
n.o. Phone 01-381-5312. 



as. 



Davis 01-399-5487 



Tandj P.C.I vvilh cassette interface 
plus Sharp primer and eassctie b- 
lerfacc manuals and Tour books. 
Four months guarantee left £100. 
394. Bath Rd., Saltford. Brislot 
BSIS 3DQ. 

listings and tapes (100s). 

Pa ddlevjuvs licks £150 14" colour 
TV. Miss Page Uxbridge 38797 



mxm 



PROGRAMMERS 



Good ZX81 Spectrum or VIC pro- 



PROGRAMMERS 



propeny resloralion. No skill i 
ptrience evervihinj explained 10 the 
lasl detail. SAE BM. Velvet, 
don WE IN 3XX 



illSalli < ii!lin'.ii[iOI-437-ll»l2 



i mwm 



1 .11 w, 



* 



us on 03! 982 239 
lurgh. Isle of Har- 



end 25n for lisl 10 L.P. Carler, 37 
Siokefields, Guildford, Surrey. 

-rnnpiun UHt Chips Lid. Kcddindi 
Mains. Andrews. Fife. Tel. (0334) 


MZSOK/A Horse 
Winners galore. 
Other Sharp prog 
Del ails: H. Parage 
Woodlands. Wimb 


Colour Genie elc. 


HJrl'lHiH 



ATTENTION ALL 

DRAGON 32 and TANDY 

COLOR USERS!! 



ATAHI JUO-mni Mip.a 
Don'i risk losing yur U 
nr«r.ii]i-! SupakUme o.jik- 
MSC-Ba>k- tactiies i<nc 
bootable) £9.95 (posil 




tPSOHDZXBl ORIC i 



riTKODAi TVl.. TOHPKDO 



:. (iU'iisiLik' si. i.teds i.s'j 'jj 

K (05321 48U987 






EAST 

LONDON 



polj,/XSl lf,K. Hi 



NO JOYSTICKS \ 



SOFTWARE LIBRARY 



M>K IIII M (iOl.F 



«»[™ m . CYPHERSOFT 



.-1 1 I'll ik' I'D I Hoi -■her. 2V S 
I a \ I 



llncipurided VIC20 Al 



Rise, Cardiff, CF4 SRE. 

ZX8I G>l*xlM> £5.50. Also 

K nigh i -Killer & oihcrs. Details 



Shaw. HCW. Siainlc 
Cheshire, SK4 5AH." 



AQUARIUS SOFTWARE 



»H 400/800. Secondhi 
twarebought/sold.SAEfor 
e 35%, Jervis. 19, Por 

>o. N.uimeham N055DT. 



IKS 



WORD-PROCESSOR 



|IHJ:H:MI|^ 



aughlin. Depl. ol (Vt j-i 
[field College. K;diJei?i»< 
. London NW3 7ST Tel 



mm 



CHEMISTRY EXAMS? NO 

PROBLEM WITH ALCHEMY 
SOFTWARE. 6 programs covering 
FORMULAE and CALCULA- 
TIONS for (l/CSEeach with exten- 
sive notes for ZXBI and SPEC 
TRUM. Send SAE for delails lo 
ALCHEMY, 

ROAD, HULL 





CLASSIFIED ADVERTISEMENT 1 
— ORDER FORM 




1 


a 


3 








- 


s 


g 


10 


11 


12 


























Plow place my ndven in Home Computing Wetklj for »Hlu. 















ed by ihe La» of Coiwrifhi ot 



Pitt *i HOME COMPUTING WEEKLY 19 April 1983 




tf*' * '« x *-* v / WHICHEVER CATEGORY YOU C 

i&t a */ D0 YOU SINCERELY WANT TO BE RICH? 

\*SPy WOULD YOU LIKE TO MAKE SOME REAL MONEY 
JUST WORKING WHEN YOU FEEL LIKE IT 



<E BUSINESS ONLYal' 



■QRICHES MONEY— I 



■sioseii Operate sold) 



£3.619- THREE THOUSAND. SIX 
■ -:i 336-ONETI 



SHiSSs a- E„ E .,SHB M0NS 



STOP PRESS LETTERS PROOFED TO THIS PAPER 



E COMPUTING WEEKLY 19 April 1983 Pag. 



FROM 

QUICKSILVA 

A WHOLE GALAXY OF ACTION 
AT YOUR FINGERTIPS 




msm 




m