SYNTAX
Serving Timex-Sinclair
Personal Computers
A PUBLICATION OF THE HARVARD GROUP
VOL.5 NO.3
ISSN 0273*2696
MAR.1984
IN THIS ISSUE
ZIFF-DAVIS LOSES SYNC—PICTURE UNCLEAR
8K Programs
Asteroids.8
Look Angles.8
Visibell.9
TS2068 Programs
Colorsort.10
Lines.10
Books In Print.4
Classified Ads.12
Dear Editor.7
Editorial.11
Hardware Hints
TS2 068.3
TS2 04 0.3
ZX-99.2
New Products and
Services.3
News
Ziff-Davis Loses Sync..l
Timex Tech Info Offer..1
Program Inprovements
Reusable Loops.2
Software Hint
TS2068.3
Syntax Errors.2
t Users' Groups.2
I
Vendor Report.2
Index of Advertisers
SYNC magazine, first announced in SYNTAX'S 2d
issue, ceased publishing with the March/April
1984 issue. Founded by David Ahl, SYNC built
on the resources of its sister publications &
became a fast-growing, friendly competitor to
SYNTAX. In fact, SYNC advertised in SYNTAX,
Dec.81, & SYNTAX had also advertised in SYNC,
but after Ziff-Davis purchased SYNC, we could
no longer advertise in SYNC, and ultimately
in any Ziff computer group publication.
SYNC grew rapidly in circulation and ad
pages, becoming the volume leader of ZX/TS
support publications. At its death, SYNC was
serving nearly 40,000 subscribers. Defiant
to the last, Ziff-Davis officials failed to
return our phone calls—we've no idea what
they will offer you.
Separately, Ziff-Davis informed a major
mailing list broker that the SYNC magazine
subscriber names will not be available for
purchase or rental as a separate list. Ziff-
Davis will combine the lists with those of
their other publications.
TIMEX TO OFFER TS2068 TECHNICAL INFORMATION
Doug Smith of Timex informs SYNTAX that the
information in Timex Technical Memos 1-9 and
the 3rd Party Software Guide will be amended
corrected and then distributed through their
Little Rock, AK service facility.’ The packet
will be available (beginning in May) for an
undetermined fee. No nondisclosure agreement
will be required.
TS2068 schematics can be obtained now
for $2.50 by writing the Little Rock repair
facility at:
Timex Computer Corporation
Little Rock Product Service Center
Little Rock, AK 72203
Byte Back Co
9 I No nondisclosure agreement required for this.
1
SYNTAX ERRORS: Program 1 in
Recipes for 2068 Advanced Video,
Feb.84, must be RUN twice right
after loading from tape and gives a
false error the first time.
In New Products and Services,
Feb.84, Andropos Technology's name
is actually Apropros Technology.
PROGRAM IMPROVEMENTS
In Reusable Loops, Jan.84, you
ask for a memory efficient way to
test a variable for "none of the
above." Replace line 5 with:
The program will only GOTO line 6
if one of the relations in brackets
holds true, otherwise it goes to 3.
R. F. Fraser-Smith, Chicago, IL
VENDOR REPORT
Timex will not produce the
2060 Interface, 2065 Microdrive, or
2080 Printer (announced in SYNTAX
Jan.84). The 2 05 0 Modem has been
sold in some places but may have a
heat sensitivity problem. 2020
Cassette Decks are available but
offer no benefit over any good
cassette deck and may have some
design problems.
Hawg Wild Software intends to
continue supporting the ZX/TS.
Marge Saylor of Compusa
verified that they have a 35%
charge for restocking unauthorized
returns. Authorized returns that
work according to their claims are
charged 10-20%. Authorized returns
that do not work have no restocking
charge. This policy does not appear
in their ads.
Thomas B. Woods plans to
continue developing software for
the ZX/TS and TS2068. See his
announcement on page 3.
Simulsion (formerly Lamo-Lem
Labs) has a new address: Box 2382,
La Jolla, CA 92038. Their phone
number is still 619/263-6591.
Quicksilva Inc. (426 West
Nakoma, San Antonio, TX 78216,
512/340-3684) still has software
available for the ZX/TS and games
for the TS2068. They plan to
market a software line for the QL
including educational programs,
utilities, and games.
ZX/TS USERS' GROUPS
To check for a local group that's
not listed, or to announce a new
group, call 617/456-3661 or write
SYNTAX, RD 2 Box 457, Bolton Rd.,
Harvard, MA 01451. Send SASE for
name of group in your area.
Andover, KS: Air Capital Users
Group, c/o Randy Cummings, 124 W.
10th St., Andover, KS 67002,
316/733-0242 .
Louisville, KY: Bruce S. Chang, 6
Rio Vista Dr., Louisville, KY
40207, 502/458-6163.
Matawan, NJ: Aerco Disc Nationwide
Users Group, c/o Burke Mawby, POB
49, Matawan, NJ 07747, 201/566-
7445 (bus), 201/583-4675 (res).
Amarillo, TX: New group forming,
contact Joe E. Jenkins, 3100
Mockingbird, Amarillo, TX 79109,
806/355-3185.
HARDWARE HINT—ZX-99
A 10 Ohm, 1/4 Watt resistor in
series with the hot lead of the ZX-
99 Tape Controller remote line may
prevent the internal relay from
sticking closed.
If you want to add this
resistor without opening up your
ZX-99, it can be fit inside the
remote plug to the cassette deck.
Jay Siegel, Brooklyn, NY
2
NEW PRODUCTS AND SERVICES
PRO/FILE 2068 stores your database
of up to 28,000 characters
organized into files ("screens")
and allows fast searching, user
formatted printing, screen editing,
and alphabetized file index.
Available now, full documentation
to come later, $29.95 cassette from
Thomas B. Woods, POB 64, Jefferson,
NH 03583, 603/586-7734.
ROMPAK now offers 5 ROMs for their
$16.95 ROM cartridge board (see
review SYNTAX Jan.84): ZX PRO/FILE,
Thomas Woods database program for
ZX/TS ($24.95), TEXTWRITER word
processor ($24.95), QUICKLOAD,
LOADS and SAVEs 16K in 30 seconds
($17.95 sep., included in PRO/FILE
and TEXTWRITER ROMs), VIRTUOSO
music program ($15.95), and GRAPHIX
PAK utility routines ($16.95).
Plans for 2716, 32, 64 EPROM
programmer $15. ROMPAK Inc., Suite
100, 82 06 Blackburn Ave., Los
Angeles, CA 90048, 213/653-9741.
CLS (POB 104, Cochituate, MA 01778)
publishes a telephone directory of
toll-free 800 numbers for leading
high-tech computer firms ($3 PPD).
JRC SOFTWARE (POB 448, Scottsburg,
IN 47170 812/752-6071, -5106)
offers the TS1000 Incredible Super
Tape ($24.95 + $.37 SASE) with over
20 programs, most in MC. Includes
sound effects, system programs, an
oscilloscope program, tape unlock,
assembler, text editor, etc.
Similar package for TS2068s also
available, including Hi-Res Lander,
Oscilloscope, and The Great
Graphics Show. All with a 10-day
unconditional money-back guarantee.
Games to Learn By (POB 575,
Williamsburg, MA 01096 413/268-
7505) offers 3 new TS2068 games:
DeathChase (3-D motorcycle chase)
for $19.95, Mystery Manor (graphic
adventure) for $15.95, and Art for
All Ages (2068 canvas) for $15.95.
Fidelity Brokerage Services (82
Devonshire St., Boston, MA 02109
800/343-8722) announces the first
national home brokerage trading
service, allowing subscribers to
enter buy and sell orders on listed
and OTC stocks and options 24 hours
a day. Any terminal or computer
with a modem may be used (MD-2 and
ZX/TS or MD-68 and TS2068, for
instance). Access is via TELENET.
Available for a one-time subscrip¬
tion charge of $195, plus $.40/min.
(business hours) or $.10/min (non¬
business hours).
WHEN YOU ORDER...
Please mention that you saw it in
SYNTAX. We can't grow unless
advertisers know you read us.
SOFTWARE HINT—TS2068
To put the TS2068 (or ZX Spectrum)
in caps mode (C cursor) from within
a program, use: POKE 23658,8.
Reset with POKE 23658,0.
Randy Cummings, Andover, KS
HARDWARE HINT—TS2068
To use the ZX printer with the
2068, wire a 9VDC power supply to
the printer (do not connect to edge
connector) .
HARDWARE HINT—TS2040
Your TS2040 Printer can use the
thermal paper sold by Radio Shack
for use with their 40 column Color
Computer printer.
AVAILABLE FROM SYNTAX...
If you get The Works before Apr.15,
you can select, absolutely FREE,
any three products (including a 16K
RAMpak, The. ZX81/TS1000 Home
Computer Book, VU-CALC, Frogger,
and many other Timex software
titles) from the list on the back
cover of SYNTAX, February 84.
3
ZX/TS RELATED BOOKS IN PRINT AVAILABLE IN THE UNITED STATES
* Review appeared in SYNTAX (consult our Dec.83 Index)
+ Future title still scheduled for publication
- Out of stock but not out of print
McGraw-Hill Books, 1221 Ave. Americas, New York, NY 10020 212/512-2000
0-07-001698-4 An Introduction to Vu-Calc Spreadsheeting for the Timex-
Sinclair 2000 & the Sinclair ZX Spectrum
0-07-001699-2 An Introduction to Visicalc Spreadsheeting on the ZX-81 &
Timex-Sinclair 1000
*0-07-010831-5 Crunchers: 21 Games for the Timex Sinclair 1000 (2K)
0-07-022677-6 Gosubs: 100 Program-Building Subroutines in
Timex-Sinclair BASIC
0-07-02 3959-2 Bogglers: 22 Smart Games (2k to 16k) in
Timex-Sinclair BASIC
0-07-031449-7 ZX81-TS1000 Programming for Young Programmers
0-07-037444-9 Science & Engineering Programs for the Timex-Sinclair
1000: Professional Programs for the Timex Sinclair
0-07-044041-7 BASICS: A Guide to the Timex-Sinclair 1000 (2K)
Osborne McGraw-Hill, 2600 10th St., Berkely, CA 94710 800/227-2895
0-88134-106-1 ZX81, TS1000 Home Computer Book
Prentice-Hall, Inc., Englewood Cliffs, NJ 07632 201/592-2000
0-13-037318-4 Animation, Games, & Graphics for the Timex 1000
+0-13-081050-9 Brain Ticklers: Timex Sinclair 1000 Version
0-13-081000-2
0-13-164278-2 Computer Graphics for the TIMEX 1000 & Sinclair ZX-81
+0-13-477430-2 Introducing Timex-Sinclair 2000 Machine Code: How to Get
+0-13-477422-1 More Speed & Power
+0-13-561853-3 Mathematical Problem-Solving with the Microcomputer:
Timex Sinclair 1000 Version
+0-13-729582-0 Programming the Timex-Sinclair 2000
+0-13-729574-X
0-13-729673-8 Programming Projects for Your Timex-Sinclair 1000
0-13-729798-X Programs for Your Timex-Sinclair 1000
0-13-729780-7
0-13-729871-4 Programming Your Timex-Sinclair 1000 in BASIC
0-13-729863-3
0-13-918904-1 Thirty Games for the Timex-Sinclair 1000
0-13-918896-7
0-13-921759-2 Timex-Sinclair Interfacing: Tested Interfacing Projects
0-13-921742-8 for the ZX80, ZX81 & the Timex-Sinclair 1000
+0-13-921767-3 The Timex-Sinclair 2000 & How to Get the Most From It
+0-13-921791-6 Timex-Sinclair 2000 Book of Games
+0-13-921783-5
+0-13-921974-9 The Timex TS 2000: Your Personal Computer
Addison-Wesley Publishing Co., Jacob Way, Reading, MA 01867 617/944-3700
0-201-11064-4 Seventy Games for the Timex-Sinclair 1000
0-201-16479-5 Tantalizing Games for the Timex Sinclair 2000
+ 0-2 01-14649-5 An Explorer's Guide to the Timex-Sinclair 1000 & the
Timex-Sinclair 2000
Focal Press, 80 Montvale Ave., Stoneham, MA 02180 617/438-8464
0-408-01101-7 Learning BASIC with your Sinclair ZX80
0-4 08-0132 3-0 ZX Spectrum User's Handbook
0-408-01338-9 Introducing ZX80 Assembly Language Programming
Bantam Books Inc., 666 5th Ave., New York, NY 10103 212/765-3535
*0-553-23241-X Mastering Your Timex-Sinclair 1000 Personal Computer
4
Dell Publ., 1 Dag Hammarskjold Plaza, New York, NY 10017 212/605-3000
0-440-52785-6 Games for Your Timex-Sinclair 1000
0-440-52794-5 Games for Your Timex-Sinclair 2000
New American Library, 1633 Broadway, New York, NY 10019 212/397-8000
*0-451-12138-4 The Timex Personal Computer Made Simple
0-451-12598-3 51 Game Programs for the Timex Sinclair 1000 & 1500
John Wiley & Sons, Inc., 605 3rd Ave., New York, NY 10158 212/850-6000
0-471-88730-7 What Can I Do with My Timex Sinclair 1000? Lots!: 56
0-471-88729-3 Programs for the Timex Sinclair 1000 & ZX81
0-471-89099-5 The Timex Sinclair 2000 Series Explored
*0-471-89888-0 Byteing Deeper in Your Timex Sinclair 1000
Howard W. Sams, 4300 W. 62nd St., Indianapolis, IN 46268 317/298-5400
*0-672-21957-3 ZX-81 BASIC Book
0-672-22012-1 Timex-Sinclair 1000/ZX81 User's Handbook
0-672-22077-6 Timex-Sinclair BASIC Primer With Graphics
0-672-22225-6 Timex-Sinclair 2068 Beginner/Intermediate Guide
Birkhauser Books, 380 Green St., Cambridge, MA 02139 617/576-6637
3-7643-3080-5 Timex Sinclair One-Thousand: Programs, Games, & Graphics
3-7643-3115-1 Machine Code & Better BASIC: For the Timex Sinclair
1000 & 2000
Hayden Book Co., 50 Essex St., Rochelle Park, NJ 07662 201/393-6000
0-8104-2102-4 Timex-Sinclair BASIC
0-8104-1064-8 Timex-Sinclair Color Graphics
Tab Books Inc., Blue Ridge Summit, PA 17214 717/794-2191
0-8306-0108-2 A Kid's Manual for Programming the Sinclair-Timex
0-8306-0608-4 Computers
0-8306-0117-1 Using & Programming the ZX81-TS1000, Including Ready-to-
0-8306-0617-3 Run Programs
0-8306-0523-1 The Sinclair ZX81
+0-8306-0708-0 A Kid's First Book to the Timex Sinclair 2068
+0-8306-1708-6
0-8306-1623-3 Computer Companion for the Timex-Sinclair Computers
Reston Publ. Co., 11480 Sunset Hills Rd., Reston, VA 22090 703/437-8900
0-8359-0348-6 BASIC Basics for the Timex Sinclair 1500
*0-8359-4255-4 Mastering Machine Code on Your Timex Sinclair 1500
+0—8359—7699—8 Timex Sinclair 2068, 1500, and 1000 Machine Language
Programming and Interfacing
Melbourne House, 333 E. 46st St., New York, NY 10017 212/490-7957
*0-86161-101-2 Machine Language Programming Made Simple for the Sinclair
0-86161-103-9 Understanding Your ZX81 Rom
*0-86161-113-6 The Complete Sinclair ZX81 ROM Disassembly
0-86161-102-0 Not Only 30 Programs for the ZX81
0-86161-118-7 The Ins & Outs of the TS1000/ZX81
0-86161-105-5 The Complete ZX81/TS1000 BASIC Course
ARCsoft Publishers, POB 132, Woodsboro, MD 21798 301/845-8856
0-86668-020-9 One Hundred & One Timex 1000-Sinclair ZX-81 Programming
Tips & Tricks
0-86668-021-7 Thirty Seven Timex 1000-Sinclair ZX-81 Computer Programs
for Home, School & Office
0-86668-026-8 Timex-Sinclair Computer Games Programs
0-86668-027-6 Practical Timex-Sinclair Computer Programs for Beginners
0-86668-810-2 Timex-Sinclair Computer Program Writing Workbook
Wayne Green Inc., Rt. 101 & Elm St., Peterboro, NH 03458 800/343-0728
0-88006-063-8 Converting to Timex-Sinclair BASIC
0-88006-065-4 Using the Timex-Sinclair 1000 & 1500
5
Simon & Schuster, 1230 Ave. Americas; New York, NY 10020 212/245-6400
0-671-47069-8 The Essential Guide to Timex/Sinclair Home Computers
Que Corporation, 7960 Castleway Dr., Indianapolis, IN 46250 317/842-7162
-0-88022-016-3 The Timex-Sinclair User's Guide, Vol. 1
0-88022-028-7 Timex-Sinclair 1000 Pocket Dictionary
-0-88022-029-5 Timex-Sinclair User's Guide, Vol. 2
0-88022-030-9 Timelost: Timex-Sinclair 1000 Version
Datamost Inc., 8943 Fullbright Ave., Chatsworth, CA 91311 818/709-1202
0-88190-058-3 The Elementary Timex-Sinclair
Dilithium Press, 11000 SW 11th St., Beaverton, OR 97005 800/547-1842
0-88056-090-8 The Sinclair ZX81 Book-Software Package: Programming for
Real Applications, Also for the Timex Sinclair 1000
0-88056-107-6 Using & Programming the Timex Sinclair Computer
0-88056-113-0 How to Use the Timex-Sinclair Computer
0-88056-127-0 Control Things with Your Timex-Sinclair
0-88056-137-8 Thirty-Two BASIC Programs for the Timex-Sinclair Computer
0-88056-189-0
*0-88056-155-6 The Sinclair ZX-81: Programming for Real Applications,
Also for the Timex Sinclair 1000
R.J. Brady Publishing, Rts. 197 & 450, Bowie, MD 20715 301/262-6300
0-89303-348-0 Brain Games for Kids & Adults Using the Timex-Sinclair
1000, 1500 & 2000 Series
+0-89303-874-1 Teach Yourself BASIC with the Timex-Sinclair Computer: A
Beginner's Guide
0-89303-941-1 VU-CALC & VU-FILE (The Organizer): Getting Serious with
Your Timex-Sinclair
Sybex Inc., 2344 Sixth Street, Berkeley, CA 94710 415/848-8233
*0-89588-099-7 Your Timex Sinclair 1000 and ZX81
Trillium Books, POB 921, Madison Sq., New York, NY 10159 212/684-7399
0-89824-058-1 Kids Working with Computers: Timex Sinclair BASIC Manual
Book Co., 11223 South Hindry Ave., Los Angeles, CA 90045 213/410-9466
0-912003-16-2 The Timex-Sinclair User's Encyclopedia
Cibbarelli, 11684 Ventura Blvd., Studio City, CA 91604 818/797-7654
0-913203-02-5 Introduction to Computer Programming for
0-913203-01-7 Information Services
Creative Comp., 39 E. Hanover Ave., Morris Plains, NJ 07950 2 01/54 0-0445
0-916688-23-2 Fifty Programs for the Timex-Sinclair 1000
*0-916688-26-7 The ZX-81 Companion
*0-916688-33-X Getting Acquainted with Your ZX-81
0-916688-41-0 The Gateway Guide to the ZX-81 & ZX-80
0-916688-43-7 The Best of SYNC
0-916688-48-8 The Timex-Sinclair 1000 Idea Book
+0-916688-66-6 The Working Timex-Sinclair 2068
Compusoft Publishing, 535 Broadway, El Cajon, CA 92021 619/588-0996
*0-932760-15-5 Learning Timex Sinclair BASIC for the Timex 1000 & the
Sinclair ZX81
K.D.V.H.E. Publishers, POB 6788, Chicago, IL 60680 312/791-9065
0-932810-00-4 Timex Sinclair Statistics: 12 16K Programs
Including Multifactor Analysis of Variance
0-932810-01-2 Timex Sinclair Statistics: 12 16K Programs
0-932810-02-0 For the ZX81, TS1000, TS1500, Including
0-932810-03-9 Multifactor Analysis of Variance (3 editions:
Data in REM, Data in Strings, and Data in Array)
Computer Engineering Services, POB 1222, Show Low, AZ 85901 No Phone
*None The Expandable ZX80 and ZX81
6
DEAR EDITOR:
I could not believe the
pullout of Timex until I read it in
SYNTAX! It breaks my heart to see
a superior product like the 2068
left an orphan. However, it was
heartening to read your page 10
statement of intent. I whole¬
heartedly support your stand and
will do all I can to support your
publication.
I have always mentioned your
name when I bought a product
advertised in SYNTAX and there have
been many occasions.
Looking forward to all future
issues, I am yours truly,
Virginia T. Lake, Wilmington, DE
Is there any additional
documentation available for the
Timex Vu-Calc program? There must
be a better description than the
one that comes with the tape.
Don Durst, Kettering, OH
Our list of ZX/TS Books in Print
(this issue) lists two books about
Vu-Calc, ISBN 0-07-001698-4 for the
TS2000 (presumably meaning 2068)
and ISBN 0-89303-941-1 for ZX/TS.
I am trying to get a copy of
the UK manual for the ZX Spectrum.
The abbreviated 2068 manual does
not cover the computer sufficiently
and it may be doomsday before the
Timex people come out with their
own advanced manual. Of course, I
am willing to buy the book if I
knew where to get it.
Warren Fricke, Depew, NY
Sinclair's U.S. office cannot
obtain Spectrum manuals for Timex
customers since they do not support
the TS2068. Timex will not publish
the Advanced Programming Manual,
however, they will make available
technical information for the 2068
starting in May. Schematics are
available now. See story, page 1.
After successfully using the
old Sinclair ZX Printer for over a
year, it finally gave out on me,
and I decided to invest in the new
Timex-Sinclair 2040 Printer.
I am very disappointed in the
product, specifically because the
print is too light. Does anyone
know of a way to improve the
printing quality of the TS2040, so
that it prints a darker, heavier
image, at least as readable as the
old ZX printer?
Two separate phone calls to
Timex have produced nothing but a
"ho-hum" attitude. They don't seem
to know anything about printing
quality, and can't even tell me
where I can buy replacement paper.
Dan R. Sullivan, Seattle, WA
TS2040S print darker on Radio Shack
40 column thermal paper. We use it
at SYNTAX for all our listings.
I was shocked, as I'm sure
many were, by the news that Timex
was getting out of the computer
business. And I'm worried about
the alarming decrease in the
SYNTAX'S size and ad volume. I
almost feel I am the proud (?)
owner of an unwanted orphan. Has
my 16K ZX81 hit a dead end?
I hope not. The Timex Sin¬
clair line remains an excellent
value. The departure of Timex has
created an opportunity for smaller,
low-overhead operations to step in
and fill the need for continued
support of the T/S line.
SYNTAX can play a badly needed
role. People need to know what's
happening. Who is selling, sup¬
porting, or developing what? Where
can I get supplies and parts?
What's happening in the U.K.?
SYNTAX may be the only channel
for distributing news and inform¬
ation to the T/S user community.
It would be, in effect, the organ
for a nation-wide user's group!
Stephen Greene, N. Reading, MA
7
LOOK ANGLES—8K/16K
Given the latitude, longitude,
and local magnetic variation of a
dish antenna and the longitude of a
geostationary satellite, this
program calculates the look angles
(azimuth, elevation, and heading)
for recieving signals.
Because the ZX/TS computes
trig functions only in radians,
LOOK ANGLES converts all input into
radians and all output back into
degrees.
This program runs on the 2 068
without any changes after FIRST-
LOAD ing. Adapted from a program
published in ELECTRONICS . 8/25/82.
Lawrence D. Terry, Naples, FL
ASTEROIDS—8K/16K
Here's a fast game written in
machine code for ZX/TS machines.
Enter the first listing, then
RUN and input the numbers in the
POKE list. Enter lines 20-50 in
the final listing over the old
lines. SAVE the program on tape,
then check the Syntactic Sum.
To play, RUN and avoid the
asteroids by moving left and right
(with 5 and 8). You get one point
for each asteroid you avoid. Start
a new game by pressing any key.
Craig Bird, Victoria, BC, Canada
I
$
I
11
)
*
8
»
In Stock! NEW MD-2B kit
smart MODEM $119. 95
• Send and receive Programs by Pb
• Copy Information into mernoty ijjf /
Print it, Review it. Save it on Tape ^ '
• Use Timex 2040 Printer or RS-232 **+*-«**
• No extra memory Required
See Review in Feb. ’84 SYNTAX • 2 FREE Hours on COMPUSERVE
COMPUSERVE PACKAGE WITH 5 FREE HOURS ONLY $39. 95
NEW MD-68 FOR THE 2068
SAME FEATURES & SAME PRICE AS THE MD-2B
64-K MEMORY $109. 95 k.t I ?Sp“l ke .
the “ULTIMATE MEMORY’’ $119. 95 assembled
SEE REVIEW IN JANUARY ’84 SYNTAX
KEYBOARD without case .... .$39. 95
GORILLA/BANANA PRINTER $199. 95
w HD A /Til C Cassette & Book $16.95
rnU/rlLL including shipping
Clearly the Best File Management Program Avaiable.
NEW PRO/FILE 2068 including shipping
A new version of the Popular ZX PRO/FILE Program with many
new features for the 2068. Includes a 100 Page Manual.
RS-232 PRINTER INTERFACE Only $59. 95 KIT $69. 95 ASSEMBLED
CONTROL MODULE 8 relays, 8 inputs, $59. 95 KIT $69. 95 ASSEMBLED
BYTE BACK CO. If VttgSH
Rt. 3, Boi 147, Brodla Road I a I
Laaavllla, S.C. 29070 I M ' I Hi
ORDER PHONE 803-532-5812 1
Add $4.95 shipping and handling
90 Day Warranty On All Moduias. 10—Day Ralurn Priviladge_
VISIBELL—8K/1K
This reverses every character
on the screen. Enter the first
program, RUN and input the numbers
in the POKE list. Then enter lines
5-80 in the second listing and RUN.
Lines 20 & 30 reverse the screen;
lines 50 & 60 set back to normal.
9
COLORSORT—TS2 068
LINES—TS2068
These two programs do the same
thing: POKE the attribute file with
random colors, then sort the bytes,
resulting in a display of the sort
in progress on the screen.
Try BASIC COLORSORT first so
you can see what happens. You can
add a line 77 PAUSE 15 to get a
better look at the sorting process.
This version has a BEEP loop at the
end so you'll know when it's done
(it takes about 2 hours to RUN).
Now try M/C COLORSORT. You
should be truly impressed. It
finishes the sort in just a few
seconds, PAUSES, and starts over.
Lloyd Painter, Quackertown, PA
Here's a program that counts
on simple math to produce a random
display of fans of color. It works
by picking two pairs of points on
the screen and drawing a series of
lines between them. It leaves them
on the screen for a while and then
quietly picks up after itself.
SYNTAX is published monthly by a wholly-
owned subsidiary of The Harvard Group.
Syntax ZX80, Inc.
RD 2, Box 457, Harvard, MA 01451.
Telephone 617/456-3661.
12 issues, $29. Single issue, $4.
Publisher:
Editor:
Consulting Editor:
Technical Consultant:
Kirtland H. Olson
Eric K. Olson
Ann L. Zevnik
Kirtland H. Olson
© Syntax ZX80, Inc., 1984. All rights reserved.
Photocopying prohibited. ISSN 0273-2696
OUR POLICY ON CONTRIBUTED MATERIAL
SYNTAX invites you to express opinions related to any Sinclair or Timex com¬
puter or peripheral, or the newsletter. We will print, as space allows, letters discuss¬
ing items of general interest. Of course we reserve the right to edit letters to a
suitable length and to refuse publication of any material.
We welcome program listings for all levels of expertise, written in either Sinclair
BASIC or Z80 machine code. Programs can be for any fun or useful purpose. We
will test run each one before publishing it, but we will not debug programs; please
send only workable listings. Programs submitted on cassette can be tested more
quickly and with less chance of error.
In return for your listing, we will pay you a token fee of $2.00 per program we
use. This payment gives us the nonexclusive right to use that program in any form,
world-wide. This means you can still use it, sell it, or give it away, and so can we.
We will consider submissions of news and hardware or software reviews. Please
keep articles short (350-400 words). Again, we reserve the right to edit accepted
articles to suitable length. We will pay 7 cents per 6 characters, including spaces and
punctuation, for accepted articles.
When you send in articles for possible publication in SYNTAX, please include
the following information:
• How to operate the program, including what to input if it does not contain
prompts.
• Whether you can run the program over again and how.
• How to exit the program.
• The Syntactic Sum (program published in June 81;
send SASE for a free copy).
• What RAM size program requires.
• What ROM program uses (8K, 2068, Spectrum).
• For MC programs, what addresses must change to relocate the code and what
ROM calls are used.
We pay for this explanatory text at the same rate as we pay for articles in addi¬
tion to payment for the program itself.
If you want us to return your original program listing or article, please include
a self-addressed, stamped envelope. Otherwise, we cannot return submitted material.
HOUSE RULES AT THE LAST CHANCE
During the next few weeks you
will be inundated with bargains and
off-price offers. Refer to your
back issues of SYNTAX as you plan
to deal with various vendors. Keep
these points in mind.
Vendors who never got it right
before do not improve as they leave
the business. Undelivered orders
are not bargains. Use charge-card
or COD payments to give you some
leverage, and act swiftly if your
order is delayed.
Know the terms before you buy.
As-is, where-is means you must know
what you're buying.
Closeouts, selloffs and other
quick-disposal schemes are not seen
by sellers as the start of a long¬
term relationship. Sellers want
volume, turnover, & low order cost.
Do not bet against yourself by
thinking they want future benefits.
Unsupported accessories may
come at low prices, but can you do
repairs? Will you get enough data?
Timex computers & printers are good
buys even at list price, but how
about the tape recorder? Can you
gain by buying it? What discount
will equalize the value to one from
a continuing manufacturer?
Full price for full value is
not the worst deal—just watch.
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SYNTAX
CLASSIFIED ADS:
Reach 1000s of ZX/TS users! Call
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HOT Z-II FOR THE 2068
The best of the TS1000 machine
utilities has migrated to the
2068. Assemble, disassemble,
label, relocate, single step,
print/save listings with this
multi-purpose utility. HOT Z-II
is the way to learn Z80 code and
discover how the computer works.
Just $24.95 + $2 ph from Sinware
PO Box 8032, Santa Fe, NM 87504
FOR BEST PRICES ON TIMEX PRODUCTS
CALL US! Take advantage of Timex's
closeouts on TS2040 Printers,TS2050
Modems,TS2 068 1 s,RAM-PACKS,TS1000's,
software,etc. We accept VISA & MC.
ZEBRA SYSTEMS. INC. (212) 296-2385
78-06 Jamaica Ave,Woodhaven,NYll421
CRYSTAL COAST SOFTWARE,Entertaining
Educational,practical programs.Send
« for FREE catalog,program listings;
POB 233, MOREHEAD CITY, NC 28557
* STOCK MARKET KEY WEST * Newspaper
data returns 22-Instant Charts;Each
Chart covers 51-days.TSl000+64K RAM
MANUAL+CASSETTE $22.00 VERN TIDWELL
1303 WHITEHEAD KEY WEST,FLA. 33040
PRO/FILE UPDATES the newsletter for
ZX Pro/File owners. Get mods, uses,
enhancements, and explanations as
they occur for $9.95/yr.
Get the PRO/FILE program for $16.95
on AERCO disk w/instructions $39.95
New PRO/FILE 2068 on tape $29.95
VISA/MC welcome-call (603) 586-7734
Tom Woods Box 64 Jefferson,NH 03583
** ADD MEMORY THAT WON'T FORGET1 **
* Kit $34:90; additional 6116LP-3 *
* $8:50 each; ZX81/TS1000 female *
* connectors gold bifurcated $5.00*
* male extenders $1.50; HUNTER *
* 1630 Forest Hills Qkemos MI 48864 *
**NAMES** A Genealogical File
Program for the ZX-81 and T/S 1000.
Holds complete data on 100 persons.
Searches, lists and prints data.
Requires 64K memory. Also available
for TIMEX 2000 series (holds data
on 70 persons). $30 pp. Send check
or money order to V.T. Lake,
P.O.Box 351, Hockessin, DE 19707
ZX PRO/FILE CARTRIDGE $39.95
The #1 Timex database manager plus:
QUICKLOAD-saves/loads a 16K file in
30 sec! Stores 1 MEGABYTE on 1 tape
Next best thing to a disk...with 59
pg. manual. Send 39.95 + 2.75 sh to
ROMPAK 8206 Blackburn Ave.
L.A. CA 90048 Send SASE for catalog
THE
H\RV\RD
GROLP
Bolton Road, Harvard. Mass. 01451
First Class
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PAID
Harvard, MA
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01451
MR WILLIAM TOMLINSON {J
3635 RIVEREUSE DR. _ L
. T A CK 5 O MV 1L. L E F L 322 i 1
