80 Microcomputing – Volume 36 – January, 1983
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Features
Some myths die hard, such as the quickest way to riches is to write a super program.
The second generation of word processors is upon us. One newcomer, Forthwrite, deserves to be ranked with the best of them.
So you’ve decided to put your program on the market. Should you sell it through a publishing house? Neil tells you how to begin.
Here’s a step-by-step explanation of how to write clear, concise manuals for your programs.
You’ve spent a lot of time and effort writing and debugging a program. Of course you want to protect your idea from theft, but how? I
If you’re interested in knowing a planet’s location at some time in the past or future, use this program to calculate its position.
This version of Basic is much more powerful than Microsoft’s. Use it to write sleeker code.
Your Color Computer can be used to produce address labels and maintain mailing lists.
In his finale, Philip M. Van Praag ties together three devices to make up a powerful Peripheral Support Interface.
If procedure-oriented languages intrigue you, Alcor Pascal may be the answer to your needs.
Print block letter titles on your fanfold printouts to make them more readable.
The price you pay for strings with variable lengths can be a bargain if you collect your garbage efficiently.
Games are rarely written for the Model II but here’s one that lets you make a lunar landing.
Envision yourself as a flying ace sitting in a cockpit shooting the enemy’s biplanes.
When you invoke the executioner in TRS-80 unintentionally, you’ll be glad to have this program on hand.
In the early days of 80 Micro, you might have punched in a word processor by Delmer D. Hinrichs. If you did, these mods should be a cinch.
A Basic version of the popular arcade game featuring the amazing bouncing ball.
Stu’s son failed to qualify in the Pine Wood Derby when his racer was misjudged. So Stu didn’t get mad; he replaced the judge with his 80.
You don’t have to be a Reverend to benefit from this financial statement program.
A way to take the risk out of saving disk files to tape.
Now you have a way to determine just how cold you will be on those frosty winter mornings.
Use supervisor calls and other tricks.
Tired of machine language forcing you to PEEK and POKE your Color Computer to death? Read on!
Without a hardware mod, your 80 is immune to rude interruptions
Knowing about parsing can help you create The Great Microcomputer Adventure Game
Make your favorite programs run faster with a little help from a stop-watch
A machine-language utility to edit random access memory.
If one of your Color Computer disks crashes, you could lose several programs. To rescue them, try the steps outlined in the article.
Confused by the order your Color Computer prints the director? This utility makes your directory look the way you want it to
Vectors were your favorite part of high school physics class, right? This month, Margaret tells you how to use them in APL on your 80
You can combine old Color Computer programs with new ones. This technique tells you how, and you won’t have to retype anything.
Good looking title and credit pages for your programs are easy to set up with this utility
The four routines of Tape File Manager will increase the speed with which your buffer can read and write data to and from the tape.
Since operating systems can be inadvertently frustrating, KTI’s faithful observer asks, “Why not stop the pretense and make them purposefully frustrating?”
Tired of the same old prompt?
Catching bugs a step at a time
Monitor your freezer and play Pong too!
Departments
The need for more secure computer systems and a call for better TRS-80 graphics.
Custer’s Revenge invades the sanctity of Microcom
Disgruntled Model II owner who wants a hard disk. A call for a Super-Scripsit driver for an Epson. Let’s have more Line Printer VII articles. Praise of the Word Machine. Knock on MONEY DOS.
Colorful Computer fixes. Escape from SuperMaze. Curing Jack O’Lantern droll
Credit union software. Smith-Corona and Scripsit. Request for government general ledger program. LEX 11 schematic.
The ghost of Thomas Wolfe haunts Jake as he returns to his home (in what he unfondly calls “Gray” Britain) and discovers the Dragon.
The odyssey ends up in Vegas.
Leap Year, Sands of Time, Perpetual Calendar
Putting the final touches on the build-your-own LNW
TDK floppy disks and cassettes. Telex communications for CP/M owners. C C Mailer. Medical lab software. Model I expansion mainframe. Computer-Assisted Home Energy Management. Nutritional management software. Color III conversion plans. Brevi-T abbreviation utility. Educational Software Library. C for Model 16. Bazui’s Quest.
Pac-Droids. C.C. Mailer and C.C. Merger. Make your computer talk with Chatterbox. Trashman, a string cleaning utility. Options-80, a stock-market utility. Log Electronic Notebook. Rental Property Investment Program. Black Death, a gem of garage-punk programming. Super-Scripsit.
Address Factory for the Color Computer. Print CC allows your TRS-80 to act as a buffer for your parallel printer. Astro-Blast, not just another space game for the Color Computer. The Moses Lightpen. Color Computer Katerpillar.
Enter the Dragon, a new 6809 micro taking Britain by storm. Tandy’s scheme to market its color machine outside the Radio Shack chain hits some rough water. The Source officially opens its new computer center.
May we have the envelope, please …
A program to forecast the weather. Unmodified Model I word processing. Okidata ribbons. Model II Scripsit and Epson woes. Epson tractor-feed problems. SuperScrsipsit-Epson incompatibility.
80 Microcomputing – Volume 37 – February, 1983
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Features
A new column on combining BASIC and machine language
A new column on the Model II and II/16
Quick. What’s the capital of Ohio? If you guessed Cleveland or Toledo, you’d better use this states program to refresh your memory.
With these three word games, your kids can learn their spelling words while having a good time.
Your children will have so much fun playing with your micro that they won’t even notice they’re learning addition and subtraction.
Youngsters don’t have to grow up afraid of micros. Start them off early with this game program that teaches letters and numbers.
Got an old refrigerator hanging around? This unit will let you control its lighting and temperature for all sorts of science projects.
This revision of a previously published program makes it a more useful educational tool.
With a little help from you and some imaginative graphics, the TRS-80 becomes a poet.
Young Programmer Awards
We’ve known for some time kids make up a significant portion of our readers, but we weren’t ready for this!
An adventure written in Assembly language.
Guide your sub though a winding tunnel while trying to avoid mines and torpedo launchers.
Store up to 200 notes on your Color Computer and save the music you’ve created on tape.
Make your CRT a sketch pad, save your drawings, and recall them at a later date.
Now bring this famous teaching tool into your Tandy machine.
Travel through an underwater palace battling the abominable Kraken.
A joystick game a la the light cycle races in TRON
Test your pugilistic skill in this nifty game involving you against the computer
Test your knowledge of world draperies.
Have your own cassette-based bulletin-board system.
A computer class programming assignment turns into a valuable learning tool.
Third version of the C language incorporates some of the ideas of Pascal and Assembly and provides some features borrowed from UNIX
If you’ve wanted to use Pilot, but it did not work on your system, try this altered version.
If you want to save time when loading programs, try this index for the Color Computer.
An in-depth review of Tandy’s 16-bit machine.
Use your computer to translate your messages into an indecipherable mess; then with this program, you can translate them back again.
Reproduce the video display on paper.
Introduce your 5-year-old to the TRS-80 with these math and word programs
Adjust the color and alignment of your color monitor with this Color Computer program.
This month’s installment contains a bonanza of functions. To name a few: logical operators, shaping indexing, and reduction.
You can benefit from this author’s migraine headaches cased by Model II mishandling of disk data.
Discover life in the fast data lane by putting the pedal to the metal oxide.
Save yourself the trouble of figuring screen locations, field prompts, and input fields and let your computer do the work for you.
If you thought fast-paced games couldn’t be written in Basic, peek Pong should surprise you
Watch communities of organisms develop with the Game of Life for the Color Computer.
A subroutine allowing editing of input and saving your programs from crashing.
Concatenate your programs on tape.
Merge Transmuter with another program and you can relabel any and all program variables.
Departments
The 16-bit fad.
Piracy becomes a political issue.
A reader offers a helping hand and raises a commotion.
The new exciting PC-2. better than On-Break GOTO. Okidata 83A problems. The meaning of baud.
Engineering software. Last One questions. Interfacing problems Down Under. Model III Cassbox? Scientific reconstruction of auto accidents.
Bugs In Casino Draw Poker. Model III Graftrax. Digital Doodles. Tee for Six. Tax Estimator.
Directory Information. Please correction. Here are the listings.
Structured programming blues.
Quality instructional lessons with Author I. Create compiled Basic programs with The Basic Answer. Graphics-enhanced Basic. Apple Crunch, a computer crime novel. The Echo General Purpose Speech Synthesizer. DBASiC works kith FLEX. Doughflo, Ultra-Term, Mikeegraphic Graphic System. Microbuffer and MXPLUS make your Epson perform like never before.
El Diablero-An Adventure Game. Telewriter, the disk version, Outhouse, Fan for the Color Computer, Roman Checkers, Tandy’s Othello.
Wherein a sprite named Mercedes Silver helps Max and Rodney win back thevan from Nurse Lovelace.
Tandy’s program to help independent software writers. Isaac Asimov speaks in Brooklyn. Will rent-a-computer be a new trend? Pilot service center in Dallas may be start of something big. Custer’s Revenge stirs national outrage.
Aerobic mathematics.
First came the hotline, now the bulletin board.
Dice games called Show Up, Drop Dead, and Martinetti.
80 to 35 tracks. Model I service manual. Expanding RAM. How to become an independent service person. Color Computer light pen. External Model III double-headed drives. Programming in English. Computer insurance.
The finer points of tape loading.
Personal Speech system. CP/M Software index. 96K for Model I. Printer Optimizer. The Amazing Ben. Model II Locker. Micromouse. Softrol recorder switch. Zaxxon for Color Computer. Food co-op software. Bumperware 1.0.
80 Microcomputing – Volume 38 – March, 1983
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Features
New column on Tandy’s fabulous color machine!
Are you concerned about unauthorized persons using your computer? If you feel a need for security, this article will be of interest.
A CP/M mod for $5? That’s what author Brewer describes how to build. It’s easy to do and an Assembly bootstrap-loader is included.
Want to get your hands dirty with some hardware construction? Here’s an easy starter project.
Take this helpful advice on compiling the essential tools to start your career as a TRS-80 hacker
The LNW-80 is a versatile and inexpensive upgrade from a Model I, if you are handry with a soldering iron and have some patience.
Yes, you can use your micro for something other than games! In this article you will find out how to devise a clock that keeps real time.
Business
AIDS – It won the Reader’s Choice award in January. Now you’ll be able to see for yourself why it has become such a popular program.
The down and across grind becomes passe when you’ve got an 80.
An 80 makes a travel agent’s work easy.
A bar graph to help you bring those figures into focus.
Communications
This communications package lets you “talk” to other computers, transferring programs between micros, minis, or even time-sharing mainframes.
Education
Use the Model II’s graphics capabilities to teach your child musical note recognition.
Hold your own college-bowl meets and let your Color Computer handle the bells and whistles.
Teach your 80 to find the greatest common denominator.
Games
Destroy all the Time Gates
Pit your skill against an oncoming invader.
Graphics
Use these demonstration listings to produce graphics and improve your programming skills.
Home Hobby
Teach your TRS-80 to belt out your favorite tunes with this music interpreter. It’s easy to use, and has practical applications, too.
Reviews
Not a program generator, but an applications-development language, Quik-N-Easy-Pro frees you from learning detailed programming skills.
The Flex Operating System is here to stay for the Color Computer.
Series
Have a matrix you’d like transposed? This month we’ll also tell you how to reduce, add, multiply, ravel, rotate, and catenate it.
Technique
Are you confused because the memory you have added to your Color Computer doesn’t work? This program will help locate the problem.
If you’ve always wanted to send confidential material to other users, try this public-key cipher system. It’s practically unbreakable.
Get rid of clumsy duplications of code.
Squeeze a 12K program into a 4K computer.
Tutorial
Interested in a language that uses objects instead of number? Lisp is a symbol-manipulation language that uses lists of objects.
Utilities
First, read this article and learn about the Color Computer’s ROM. Then you can use the DLOAD command to link it with the Model I.
Data-base management wih a tape-based system.
Basic to machine language to CLOAD
Why buy PRINT to LPRINT software when this one won’t cost you a dime?
Departments
Use PEEK instead of INKEY$ on your Color Computer to give your tired arms a rest during fast games.
If you like to hack up commercial programs, Debug may get in the way. So why not move it?
The cost of software publishing.
Meet the average 80 Micro reader
Floppy talk, Model III memory map, recovering dead files, open cartridge surgery comment, Scripsit changes for the forgetful.
Looking for KBFIX/RELO. Anyone have a-bar code reader? Call for Model II education programs. Help needed for Qume Daisy Wheel proportional spacing.
Take Color Computer differences in to account when using CC CQ. POKE graphics made compatible with disk systems. Quickcalc correction. String change for voice controlled typewriter. Subterra error. Before aliens attack, PCLEAR 2. Correct Color Assembler.
After mastering Basic, the next step is machine-language subroutines.
CopyArt II. Zorloff Word-Processing System. MDX4 modem. Key Commander full-screen editor. Six joysticks reviewed. Data-Writer form letter and mailing list program. The Producer program generator. Strike Force, a game from Melbourne House. TRS-80 Color Programs, more than just a book of programs. Galaxy Invasion Plus. Jovian. SPOOL/64.
Space Castle. Astroball. The Word Processor complements Bible Research Systems’ The Word. Profile.
The Games Network brings video games into the home through cable TV. Staff walks out on PC. Report on Russian theft of U.S. high technology.
Medical data bases
Make your own adventure game
Large profits quickly without disaster.
While the gamers collect some z’s, Stella continues the tale.
Readers’ questions answered.
Professional Communications System. Fan for the Color Computer. 150 business utilities for $30. Olivetti Interface. Optima disks from Verbatim. Better VlsiCalc reports. A printer for all computers. The Universal operating system. Tandy to PC transfer. Legal-office software. Pocket-sized modem. Add a monitor to your Model III. Greek mythology game. Packet Computer business program. Gas Attack lets you be the bad guy. $16.95 word processor. Space Ambush.
80 Microcomputing – Volume 39 – April, 1983
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Features
These three sleek, super-charged Model IIIs are ready to take their Winchester drives and blow everybody else right off the road.
A basic listing of a different sort for those of you ready to go beyond Basic.
Read how this Color Computer owner used his Radio Shack disk system with the versatile and inexpensive FLEX disk operating system
Make the modifications suggested here and create a useful editing function for VisiCalc
Stop Switching the RS-232 cords for your Color Computer’s printer and modem. Build this black box and leave them both plugged in.
A nearly universal EPROM programmer
Learn the background of secret ciphers and explore polyalphabetic code with Andreassen’s latest article about cryptographic programs.
Sports
In this golf game, you will have to contend with hazards as well as varying wind conditions
This game is perfect when you want to play baseball but can’t get out to the ballpark.
Marathon runners, use this program to set a new personal record or even win your next race.
Let a TRS-80 keep track of your pins
Be your league’s record-keeper.
If you’re a soccer fan, you’ll love the action in this two-person Color Computer game.
Games
Now Color Computer owners can accompany daring Harry Flynn on his wild adventures in space.
Here’s a game for you Color Computer enthusiasts complete with dragons, princesses and gold.
General
Rock groups – don’t despair! This program will soon end your search for the perfect name.
This program provides a challenging routine to help strengthen your memory via your micro.
Graphics
Vector coordinates, windowing, and divide-and-conquer translation add up to spirals, sine waves, cartoons, and more for LP VII artists.
Hardware
When your acoustic couple gives you trouble, use this device to diagnose the problem.
Review
Has your correspondence gotten out of hand? This mailing list system will help organize names and addresses on your Model I or III.
If you’re a Color Computer owner using CC FLEX, these two programs from Computerware may be for you.
Series
It’s all here – pi and trig functions, the quadratic formula, basic conversions, statistics, determinants, and matrix inversions
Round off your data-management system with MAPS-III, CALCS-III, and MERGE-III
Learn how to learn Lisp’s LAMBDA, NLAMBDA, and DEFINE atoms in the second part of this series.
Utility
This master director will help you categorize and quickly locate programs and files.
Page through the random-access memory of your Color Computer with this nifty little utility.
Departments
Pocket pagers and the Model 16.
On the inevitability of Hot CoCo.
Comments on the Creator. Demon transients. Buzzword generator. Kudos for Model II game programs. Tips for top performance from your modem. Lobster in his crawdaddy. Time Manager patch.
In response to “To Copy or Not to Copy.”
Regress correction. “Easy Picture Editor” bug.
Turning your color machine into a home manager.
Relocatable machine-language routines.
What’s the real advantage of a Model 16?
Runcalc, Machine Language Disk I/O & Other Mysteries. To Catch a Mouse Make a Noise Like a Cheese. STAR-DOS for Color Computers without Extended Basic. Demon Seed. ISSI General Ledger program. Grammatical Man. Time Runner. Centronics 122 Graphics Printer. Alien Defense Commented, the source code to a popular game with comments by its author. Okidata Microline 84 printer. Autogrammer, a program generator.
Consumer Electronics Show In Las Vegas. Disney Productions enters the software business. Model I used for first-rate dictionary. Speachware: low memory, high speech synthesis.
Four April Fools’ jokes for your computer
Choosing a broker.
SuperScripsit
Reader’s questions answered.
Catching up on the mail while gassing up at Little America.
A convert of Pascal.
Editor/Assemblers.
Infostar data-base manager. Economic forecasting program. Amplot six-color plotter. Epson, Qume, Brother. and other drivers for Super Scripsit, 007 mciro. Genius high-resolution display. CP/M Revealed. Mel the Memory Mogul. SoundTrap silences your printer. Cyberchess lets you tackle the masters. Baseball-Stat. Half-height Tandon drives. Glare filter.
80 Microcomputing – Volume 40 – May, 1983
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Features
Color for the Model III
Are you intrigued by graphics? This article deals with the visual symmetry of rotations in a plane and of reflections across a line.
Tired of typing on your Color Computer? Build this handy, inexpensive light pen, run the programs, and enjoy faster and easier input.
Learn to use dot-addressable graphics
Make this classic program easier to use
Who needs QWERTY anyway?
Business
Apply matrix logic to business applications
Tell your company’s story in graphics. Figures made with these powerful, self-documenting subroutines speak louder than words.
Education
Let these creatures teach your child number patterns.
Games
One or two people can play this game where you use your logic to guess color combinations.
Add the screen-scrolling feature of this game to your own games or other graphic programs.
General
For those readers who miss the daring new products from the zany crew from Sri Lanka …
Graphics
Forget tedious mathematical calculations. Draw hundreds of figures and shorten printing time with these Fortran and Basic programs.
Should you be content with 32K RAM on your Color Computer when you could have 40K?
Do you have a dot-matrix printer than can plot bit-mapped graphics? These fancy peaks and waves will make it jump through hoops.
Here are “A Turn of the Screw” graphics for the Color Computer. Can you get the screw to turn?
Home/Hobby
Your TRS-80 makes building a kit even easier
This editor uses less than 200 bytes.
Review
Tandy refines the Model II and introduces a strong contender with the Model 12. This expandable machine is competition for the Model 16.
Give your Model I a new lease on life with this Radio Shack Double-Density Disk Kit. You can improve TRS-DOS and Basic capabilities too.
Series
In this final part of a series on LISP, you will learn about I/O methods, temporary variables, saving function definitions, and more.
Utilities
If you’ve been unable to use your printer with SuperScripsit, you should try this program.
You can transfer data from one program to another. This routine makes it quick and easy.
Electric Pencil 2.0 owners can expand its capabilities to include mix-and-match font combinations, keyboard input, and much more.
Departments
A call for the Shack to make a comeback
On being thick and Jake’s departure
Computus interruptis. Second childhood? II/16 in Chitown. Custer’s Revenge. MONEY DOS loss. Users group Tarheel. CoCo users in Memphis. Remarks on Northeast Computer show rapped.
$50 joystick? Sound fascination. Wants July 1980 issue. TRSDOS 2.7DD incompatible with Scripsit. Biblio data-base manager wanted. Plumbing programs needed. User wants SuperScripsit and NEWDOS 2.0 to tango. LNW-80 patch wanted. AN-7000 friends needed.
Campaign funding irregularities in “Election.” No new tricks if advice of old dog heeded. CASS-80 mistakes. Listing mix-ups. Sound for draw poker found. ERROR GOTO. Missing listing. CASS-80 miscues.
Passing values between machine language and Basic.
What is this thing called Tandy?
More on Homebase program for CoCo.
GRASP. Dot Writer 1.5 Color-Graph. TRS-80 Pocket Handbook. Mindwarp math drill program. System Diagnostic 2.0. Interface Projects for the TRS-80. PLAN80 2.5. Gemini 10 and 15 printers. TC-8C High Cassette System. JBUG Monitor. Cyberchess Chess Improvement System. Super data-base program. Super Duper.
Solo Pool, billiards for your micro. Doodle Bug game. Maxi CRAS. Polaris. MULTIDOS. Business Mailin List. Wired, a novel by Harry Hellerstein. The Last One. Versa-File. CGP-115 printer. The Qume Sprint. Forth. TRS-80 Graphics for the Model I and III. Scriptr. TaxPro. ZGRAPH 4.0.
Model 12 released. CP/M and Xenix in Tandy fold. Portable Radio Shack micro rumored. Chances slim for Apple Bill this year. New movie uses computers in real time.
Rodney and his crew arrive in Iowa City.
An explanation of DOSPLUS
Fun generating mazes
QuickCalc for the Model II
Reader’s questions answered.
Model 16 Xenix. Infoscribe dot-matrix printers. Boot Error Eliminator. Modula-2 manual. Revolution, CoCo auto race game. Talk to the TRS-80. Fanfold checks for business. Satellite tracker. Program of the Month club. MicroSpooler. Supreme Rules. The Answer shifts manual modems into automatic. Tallymaster financial manager. Something for you dance-hall owners.
80 Microcomputing – Volume 41 – June, 1983
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Features
Are you curious about machine-language programming? The ROM subroutines explained and demonstrated here will help you learn.
Now Model I and III users can have the best of both worlds. With this emulator, your TRS-80 writes and runs Apple II software.
If you remember some of the rules you learned about grammar so long ago, then you should be able to use Basic effectively and efficiently.
Now that you’ve modified your TRS-80 so it’s capable of color graphics, you need this set of USR routines to enhance your programming.
Bowkey introduces his series of articles with simple tricks and shortcuts to make writing Assembly-language programs an easier process.
Would you like to have all your favorite programs in a ROM pack? Do just that quickly and cheaply and for yourself.
Disk Drives and Disks
The 16-bit MC68000 microprocessor is flexible, executes instructions faster than ever before and, best of all, isn’t hard to understand.
Games
Are you looking for games for your Color Computer? Here’s one that really tests your skills.
Graphics
If your Color Computer screen can’t handle detailed graphics, Try this graphics editor.
Reproduce the finer shading levels.
Hardware
This Model II capacitance meter lets your computer communicate with the outside world. It’s inexpensive and simple to build.
Techniques
Data files consist of characters stored on magnetic disks independent of other programs. You can learn to handle them efficiently.
Recursive routines can calculate all possible number combinations in a small amount of code.
Review
Need a snazzy new DOS for your Model II, 12, or 16? Try this one.
The second version of Postman is a complete mailing-list system to help you make your appointed rounds.
Series
Here’s another article in the cryptology series. You’ll learn how to use letter-frequency distribution to crack ciphertext.
Tutorial
By using your keyboard to draw, you can avoid the drudgery of designing graphics
Utilities
Make it on your TRS-80.
This short Basic program accepts text, analyzes it, and tells you its difficulty level.
Departments
Tandy’s decision not to tubewhip consumers.
Readers write to 80
80 programs corrected and improved.
Tinkering with the Basic in your ROM.
Color keyboard, Telewriter improvements, 64K CoCo.
Disk-not-ready error tackled.
Deadline. MicroTerm. Bable Terror. Color Pilot. Everything You Always Wanted to Know About Home Computes, D-92 printer. Telewriter 64. And more.
TRS-80 products reviewed in other publications.
Model 100 released. Microfloppy war. Tandy unfazed by market share loss. Spiritual programs for the CoCo.
I/III programs converted to Model II.
Traveling games.
New disk transfer system
Askew in Sandusky
Readers’ questions answered.
Newbasic. Okldata Microline up-date. Screen Expander. L-Monitor. II/16 Telex Software. Transector SL Surge protector. Scheduling planner. Tasman Turtle. LDOS help. Diplomat Intelligent switch box. Color Computer voice-recognition pro. gram. Model 16 data base. Android Attack. I/IIII Statistical Package. Common Subroutine Collection. Cores-9 editor/assembler update. CoCo keyboards. And more.
80 Microcomputing – Volume 42 – July, 1983
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Features
If you’ve ever wondered why there are so many programming languages for the TRS-80, this overview provides insight and examples.
Learn Pascal while teaching your micro to play cribbage.
This popular game appeared in Pascal in our July 1981 issue. Here it shows the power and speed of Fortran.
Radio Shack’s Color Logo brings computer programming to your kids.
This survey traces dialects development from the days of wires and switches to the modern programming era.
If someone makes it or sells it, we’ve got it
Business
Lean Basic programming and keep custom records up-to-date.
General
Products to extend Color Basic programmers’ skills.
Buying a CoCo is only the beginning.
Hardware
A simple serial interface for the MX-80 and the Color Computer, with programs to show it off.
Analyze PSI circuitry problems with this test equipment and advice.
What’s wrong with the TRS-80’s screen? Find out, then see what you can do about it.
Review
Lobo’s Max-80 provides CP/M capabilities and is compatible with most software
Technique
This weather data base provides information on high and low temperatures, degree days, and more.
Make conditional tests easier by tailoring the logic to the expected input.
Tutorial
Program the Model II’s MC6845 chip and control up to 16 screen functions
Utilities
Use this easy Basic program to put Profile data in new files.
C Notes
The definitive review of the definitive portable computer.
The Model 100 has industry insiders puzzling. Here’s what they say about Tandy’s newest.
Is it safe to take your 100 on plane trips? 80 Micro checks with the airlines.
Gas and Oil Mileage, Traveling Expenses, Punch Out, Itinerary 100, The Final Notice, Monitor 100, and The Rule of 78 – everything from hotel bills and loan payments to monitoring hexadecimal addresses for portable programmers.
Departments
Praise for the Model 100.
The Model 100 has changed the world and 80 Micro.
Goodbye to Brenner. Debug for DLOADM. Protected software protest. Program for woodworkers. Angry AIDS customers and SoftTrends’ response. Print sort results. TRS-80/Apple translation. improved Lisp interpreter. Scripsit meets XFERSYS.
European electricity. VoxBox software needed. Which way to process envelopes? Quest for print wheels. Model III map. $1,000 paperweight. NEC printer and Model II graphics.
An impediment in Lisp. Peg Legsand Tack-Gun CoCo bugs. Michael’s Game in color.
Scroll, don’t flip.
CoCo languages and Colorkit improvements on Basic.
Tallymaster. Epson FX-80 printer. Starcross, a hunt for black holes. CoCo expansion interface and clock/calendar. SeeBee stops Model II boot errors. ENBase. Supreme Ruler. ZSIM.
What others are saying about TRS-80 products.
CoCo stands alone as TDP twin leaves market. Finding romance at 300 baud. CRT safety questioned. New posse to ride Silicon Valley. E.F. Hutton talks, but few listen.
Black Friday for II/12/16 owners.
A festival of mini-programs.
Letter to a Radio Shack dealer.
Readers’ questions answered.
To catch fleas, think like a computer.
Supa*Edit. 5D Star Empire. NEC dot-matrix printers. 1.6 MB minifloppy. Pajaro, a new language for the Models I/III. Compu-Talk for II/12/16. Business Computer Network. Priority Organizer. DBMS subroutine package. Control four recorders with one CoCo. Model III dumb terminal program. Modular micro furniture. What the well-dressed computer is wearing.
80 Microcomputing – Volume 43 – August, 1983
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Features
Meteors are falling on Madison, WI. Your speed and dexterity can save the city.
Danger Down Under – an adventure that might leave you stranded
A review of Tandy’s third generation: the Model 4 with 64K, 4MHz, and CP/M for $1,999.
A game that’ll make you feel like a laboratory animal
Tired of fancy flight simulators? Struggle with swine in this fast paced corral game.
Las Vegas Night for the business micro.
A new way to test your memory – match those tunes.
Games
The Paper Chase was never like this.
A lunar colony is at the mercy of a mad Model I. Can you stop it and save the inhabitants?
Hot and cold molecules don’t mix in this game based on a hypothesis in physics.
“Kings and Catapults” returns for Color Computer warriors.
Play for high stakes in this adult variation of a computer favorite.
Rev up and paint the screen. It’s easy except for the obstacles and your opponent.
Try to catch the asterisk before enemies catch you.
General
The most fun you can have in the office.
Review
A mailing-list manager that comes with its own DOS.
An overview of Radio Shack’s Model II/12/16 network
Techniques
Keep your electron gun on target and eliminate the flicker that plagues Model III animation.
C Notes
Foxfighter, Intel, Subtera, Renumber 100, and The Year in Review: three games, a utility, and a bar graph for briefcase computing.
Even the Model 100 has a few drawbacks.
Sending Model 1000 ties to the leading CP/M word processor.
Departments
Mini moguls and the micro market.
Mad Max on the Gamer’s Cafe philosophy.
Hard disk accounting. AIDS-III improvements. Reader supports PowerSoft; WittSoft replies. Moving Window simplified. Tandy in business. Scripsit for LDOS. Model 16 Xenix applications. Jet Bomber and Batter Up for Model III. User’s group update.
Pen pals for Australia. Model I in stereo. Ukrainian alphabet for TRS-80? Datagraph patch sought. Model II jeweler. Lowercase for Centronics. Creeping screen display.
Text editor correction. EPROM programmer schematic. Commands for Color Disk Directory. Dreidel debug debugged.
Keyboard secrets revealed.
A look at TRSDOS – all 11 versions.
Games, graphics, and 3-D trigonometry
Prometheus 5 hard disk and DOSPLUS 4.0 operating system. Color Caterpillar. POWER! for CP/M. Microcomputers in Large Organizations. SneakThief. Early Games. Lazy Writer extensions. ProTrade. TRS-80 Interfacing Projects. And more.
Some other views of the TRS-80 marketplace.
Model 100 upstages Model 4 at Boston debut. U.S. computers and Japanese competition. Micro Sales and support. New portables at Comdex. High-tech job skills. School and home use surveyed. Epson meets Miss World.
Can you guess the Mystery Guest?
Questions answered, no waiting.
The scoop on entering our 1983-84 competition.
A favorite from last year’s games issue.
Marching through Georgia.
Eigenvalues by the power method.
Overcome /SRC anxiety
200-MB mass storage. 40-track formatter. Model II/12/16 disassembler. Custom screen designer. WattsOut. Faster CoCotapes. Ink-jet printer for $560. Model III business package. Soundplus. Memory Jogger. Subterranean Encounter. Model 16 spreadsheet. Printer-Stilts.
80 Microcomputing – Volume 44 – September, 1983
Issue Information:
Click to Enlarge
Table of Contents:
Features
Don’t be a financial gambler – use Monte Carlo analysis to defeat business problems.
Calculate the rate of return and plan business alternatives
A buyer’s guide to profitable software.
Use CoCos as terminals while you Model I/III/5 handles the printing chores.
A track-by-track disk directory for Model I owners.
Your chance to pick the winners in TRS-80 software.
Use this dumb terminal program to say hello to minis and mainframes
Business
Access VisiCalc files from basic for error-free reports.
A Model II/12/16 data base that organizes and tallies your business deals.
Graphics
The Radio Shack plotter/printer struts its stuff.
Hardware
The Sony Typecorder and your Model III make a powerful combination for writing on the run.
Review
A printer that combines the best features of dot-matric and near-letter-quality machines.
Powersoft adds utilities and patches to the popular operating system.
Technique
Even the fastest typist can’t outrun this INKEY$
Tutorial
Getting the most from the March issue’s data base manager.
Utility
Tell your micro to move files, then leave while the work gets done.
Departments
Anatomy of a merger.
Coming to terms with terminology.
Replacements versus copies. Alarms and switches. Motorola on the MC68020. Bigger barriers. Print and LPRINT. Model II spooling. Lower bombing runs. More on WittSoft. Forcing programmers away from Basic.
Model I speedup. Advertising software. Electric Pencil lowercase. Alcor Pascal assistance.
Fixes, patches, corrections, and amendments.
Low memory and restart vectors.
Plot your expenses with this CoCo graph program
The MC-10, a CoCo for beginners. Liberator. Computer Programming for Kids. The Executive Calculator. Model II games. MaxiStat. The Home Accountant. Forms III/Prosort III. Optimal Manager. Games at a Glace.
Outside opinions of the TRS-80 marketplace.
A portable disassembler, elapsed time clock, foreign exchange, and tips on writing your own Model 100 conversions, plus an update for would-be fliers.
CP/M and the software outlook. The stringy floppy forgets its past. Tandy-vision: In and out of the video biz. Micros in hotels. the Model I in museums. June in Massachusetts.
Investing in Florida real estate
Our columnist fields your questions.
Making business software decisions.
Back to school, Fun House style.
How to enter the second annual extravaganza.
A Model II mailing list.
Multi-color plotters. Alone with Floyd. Self-cleaning disks. Model 4 upgrade. Z80 applications. VisiCalc and CP/m tips. Text-formatting spreadsheet. Model 100 and RS-232 bar code readers. Power console. Use CoCo disks on your I/III.
80 Microcomputing – Volume 45 – October, 1983
Issue Information:
Click to Enlarge
Table of Contents:
Features
Your TRS-80 goes into orbit to project the positions of comets and asteroids.
Molecular orbital theories of chemistry are elementary for the Model III.
A program that turns casual skywatchers into celestial experts.
From office management to population management.
Learn about physics while you tour the stars.
Monitor and control stress and tension with this Model II biofeedback interface.
Everyone who’s anyone in the TRS-80 software world.
Game
Hide words in diabolical puzzles and frustrate your friends.
Hardware
If the Model I’s system expansion port had you stumped, here’s a guide to its Model III improvement.
Review
New features and more raw power mark the newest SU+.
Micro-Systems Software takes another few steps beyond TRSDOS.
Science
How’s your short-term memory? A tachistoscope program to test your perceptions.
Calculate attitude and azimuth to find the sun’s exact position.
Technique
What to do when there’s no room for a random-access disk file.
Tutorial
A look at the Model 16 CPU’s features for Assembly programmers.
Random access without disk drives.
Utility
A hybrid Basic and Assembly listing to simplify tape data handling.
Departments
Copyright, piracy, and the TRS-80 market.
Science for the micro masses.
Speeding up Andreassen’s cipher. CoCo Robot Reader. Z80 versus 68000. Who is Suzuki Hayashki? Structured Basic debate. Scripsit and Pencil Plus patches. Logo computations. Playing Pascal cribbage. Comal.
Missing issues. Model I Vidtex wanted. Law enforcement assistance. Graftrax chip. Stringy editor/assembler.
Fixing Strip Blackjack and Profile File Transfer.
Restoring June’s Model III Restore Patch.
Indulging a passion for mathematics.
The faster master oscillator.
Library Support Option. TRS-80 Pascal 2.0. Newbasic. Kuzel II/12/16 games. Guide to WordStar. Mannesmann Tally MT160. Typitall 1.2. TRS-80 Data Communications Systems. Project Manager. Clean Slate. Power-DOT
What they’re saying about TRS-80 Products.
Mighty Write, the I Ching, job estimate, grocery list, and Cram 100 – print formatting, business, a game, and the Book of Changes for Model 100 buffs.
Texas Instrument’s crash and the industry outlook. Microsoft joins Japan. Anti-copy lawsuit. Computer store survey. A networking standard. School micro update. Roger Moore. Free word processor.
UTerm and memory error messages.
Human and machine vision systems.
Learn Spanish, states and provinces, and the times table.
This should be even bigger than last yearsx.
A Florida condo and the Temple of Apshai.
Questions, answers, and occasional opinions.
Olivetti paper guide. Manager DBMS. Standby power. Daisy M45 printer. Datalock for CP/M. Color Scribe. printout basket. Xidex premium disks. The Buffer Box. MITE communications program. Clean your printwheel. Real Estate Analysis. Beeper T-shirts. SuperSoft C.
80 Microcomputing – Volume 46 – November, 1983
Issue Information:
Click to Enlarge
Table of Contents:
Features
Optical scanning for accurate data entry – grocery stores are only the beginning.
A look at industrial bar codes, with three popular styles for your Model III and Epson MX-80
Print out UPC codes with you Model III and MX-80
Not only can your III print bar codes, it can read them with these DOSPLUS 3.5 programs for RS-232 data transmission.
Your Model I/III and an Epson can team for full-color printouts
First of a series on the 16-bit multi-user standard.
Make your Model III into a home safety watchdog.
One-line games that astounded the judges.
Business
Challenge Wall Street with this introduction to stock options.
Games
Destroy underseas bases in under 2K RAM
If you hated prime numbers in math class, here’s your chance to get even
Review
Reader’s Digests’s ListMaker and SofTrends’ Promise!: two in-memory DBMS programs for fast fliers.
Technique
Instead of changing letters, our cryptologist turns his hand to rearranging them.
Tutorial
Save time by speeding up Basic loops.
Utilities
Spread out Model II/12/16 Basic listings for easy reading
A test pattern program for accurate color reproduction
How long is that Scripsit file? Now you can know in words instead of characters
Take back your remarks to save Model II disk space
Check your object code while using EDTASM.
A cure for vanishing II/12/16 disk directories.
Departments
Whie the Big Four are the Big Four.
How to catch bar code fever.
Tandy’s cash registers. Reviewer and designer discuss TRSDOS 6.0. CRT reassurance. Fixing Model I displays. Kepner on piracy. STAR-DOS defense. AIDS-III addenda.
CoCo RTTY wanted. Can you convert Profile to Profile II Plus? Model I RSCOBOL expansion.
Tidying up Pascal, ending “La Plume de Ma Tante,” and completing Model II Casino.
Don’t forget variables and arrays.
Virtual disk programs for 64K cassette users.
Tandy’s PC-4. The Banner Machine. LDOS utilities. Gridstar. DMP-2100 printer. TRSDOS Speed-Up Kit. Finger Print. Quill. Softcomm. Benchmark. Draw and Kwikdraw. Electronically Speaking. Games at a Glace.
Other’s opinions of TRS-80 products.
A portable bonanza: Nag Analysis, songwriter’s aid, robot control, daily numbers, and Model 100 correspondence.
Revised Radio Shack management: an exclusive interview. Continued micro Industry chaos. Oklahoma modernblues. A different kind of terminal package. Radio Basic. Comptuer haute coutre.
Reunion In Baltimore and a Silver sibling.
Last call to send in your masterpiece.
Basic animation: growing trees and playing games.
Expert answers to techie questions.
Now Load 80 speaks both source and object.
Model III/4 Pascal graphics. RSM3 monitor. II/12/16 Profile transfer. DOSPLUS IV. Using Scripsit. DBLTalk for CompuServe. Surge Sponge. PowerMail Plus. The Circuit Judge. RS-232 Analyzer. New Tandy printer. WordStar for LDOS. Strap your 100.
80 Microcomputing – Volume 47 – December, 1983
Issue Information:
Click to Enlarge
Table of Contents:
Features
The first step to writing Assembly programs: Learn how the Z80 processes instructions.
Binary and hexadecimal explained
Write efficient programs by masterin Assembly’s I/O techniques
Search text files fast with the state of the art in signature screening.
How to handle the stack, plus a reassuring look at logarithms.
CP/M 2.2 boards; three ways to expand your Model III’s software library.
Two anti-copy routines to foil cassette predicators.
A satellite dish can bring you over 140 TV stations. Here’s how to assess your location and aim your antenna.
Hardware
Connecting Part I’s hardware to let your Model III run household appliances.
Review
UDS’ 212A/D and Novation’s J-Cat and Smart Cat: One of them should suit your direct-connect needs.
Tutorial
Making variables work for you.
Utility
From Assembly to Basic in the blink of an eye.
Crack TRSDOS 6.0’s password to erase utilities and clear disk space.
Discover the password of a protected Model 4 file.
Departments
The so-called computer revolution.
Assembly lanuage without fear.
MaxiStat is now StatPac. DMP200, LPVII printer patches. Separate Model I and III programs. Save AIDS-III disk space. Maze Chase PEEK. Speed up Model 4’s Mod III mode. TRSDOS 6.0 shortcomings.
Readers in need
Talking to big guys, Black Friday, and Breakout.
Keep an eye on variable values
One last look at the world of CoCo software.
Multiple multi-user systems: Arcnet and Xenix.
The Statistician. Newbasic 2.1. Four Model 100 games. CP/M from Omikron. MicroSpooler. Monty Plays Scrabble. Businesspack +. Instant Assembler. Using Scripsit.
For serious Model 100 owners: a memory map. basic tokens, do-it-yourself modem cable, and program length counter. For frivolous Model 100 owners: blackjack
Monitor 100 and Foxfighter fixes. Calculator program
The Model 100 gets a 14,000-mile road test. Apple/Franklin lawsuit and ROM copyright. Christmas shopping for micros. Small business automation. Magic/L challenges Basic. Hegel versus videotex.
From Rodney’s “Misc.” disk.
Santa and Leon host the Fun House Christmas pageant.
Reader’s questions answered
CRC errors: when disks lose control.
Plantrac. Floppy Pockettes. Minuteman. Programmer’s Pipeline. Infidel. Micro Matrix II. Dancing Sailors. Volksmodem. Paperwork. Brainstormer. Video Filters. RamPak. Surface Plot. Byte Bat.
80 Microcomputing – 1983 Special Anniversary Issue
Issue Information:
Click to Enlarge
Table of Contents:
Happy, Happy Birthday 80
The editors look at three years of 80 Micro.
Remembrance of things past and ruminations on things to come.
Know Your System
Bored by Basic, but unsure about taking the plunge to Assembly language? Bill Barden may give you just the encourangement you need.
Word processors ease the task of producing letters and manuscripts, but you must find one that fits your system and your needs.
Introduction to data bases-everything you need to know explained in plain English.
Remember to purchase insurance for your computer. You’ll need it when lightning strikes!
Debating on whether toupgrade to a disk system or keep your faithful cassette player? If you have any doubts, read this article.
Now you can understand the language of your Model I, III or Color Computer. It’s simple.
Try these shortcuts for faster Basic programming-easier backups, macro commands, renumbering, cross-referencing, and block moves.
Acquiring proficiency at writing a Basic program requires first thinking through the program and then outlining the needed steps.
This method is usually used by mainframes to solve complex problems. Dr. Clapp gives a simple demonstration so you can use it, too.
The drawbacks of direct access files can be overcome by using relative files accessed by the scatter technique.
Improve your programming technique by applying these straightforward methods-Program Development Languag eand the scientific Method.
Model I/III
Who says cassette users can’t have some of the features of disk operating sytems? It certainly isn’t Tom Quindry or 80 Micro.
Forecast the landfall coordinates of an oncoming tropical storm or hurricane to see how much danger the storm poses to you.
If you’ve. ever wanted to convert those 6502 Assembly language programs to run on a Z80 computer, here’s a piece on how it’s done.
Here is a solution to the problem of being unable to use your computer while it is printing.
Election teaches students about campaigning by introducing them to several facets of elections such as budgets and stands on issues.
A unique application for your microcomputer, this menu-driven Basic package will help amateur astronomers and other stargazers.
Like an oscilloscope for software, Datascope reads data bit by bit, letting you recover data from glitched tapes or see data on tape.
This program won’t pull a rabbit out of a hat, but it will amaze and puzle your friends.
Boolean logic is a powerful programming tool. Here’s how it works and what it’s used for.
Avoid cluttering your work space with wires and cables and install this internal sound mod.
Here’s a new game for you! It seems that there are no humanoids left on the planet Rehabul. Who will take over dusting the art gallery?
The DEFFN statement lets you create your own functions. Using it simplifies programming and saves memory.
Categories is playable without a Computer, but this program adds new dimensions to the game.
It’s much easier to handle those long, long program listings when they are numbered.
This game challenges you with number sequences, just like the IQ tests YOU took in school.
Adding memory to your Model III is not as hard as it seems, so don’t be intimidated. But remember, you may void your warranty.
FTOS lets you use disk commands to increase the speed of storage time in your cassette system.
So your students don’t appreciate the finer points of grammar? This program will let them learn the rules and have fun at the same time.
Keeping a disk system clean has never been easy.
Producing custom labels has never been easier. Written in Basic, the program can easily be modified to work with just about any printer.
In Space Bomber, one player defends his planet from bombs being dropped by his opponent.
Those of you who are bored with your computer playing only one note at a time can learn how to get multiple notes through software.
Wouldn’t it be nice to use one database manager for all your filing and retrieval needs? Flexcat fits the bill.
Math Hangman is a game that entertains you as it helps you develop your mathematical skills.
The Lynx modem and Emterm software make an impressive cormmunications package. Smartcat makes this combination even more powerful.
Teach your kids (or yourself) long division. Your Model I makes a good patient tutor.
Visit the 72 rooms of Almazar Part I, collect the treasure, and reach the next dimension.
Find specific records quickly, even if your files contain 5,000 or even 10.000 records.
This addition to your modem will make your computer answer and dial your phone automatically.
This simulation of a sailplane race can show you the excitement of being at the controls.
You need not hassle with filespecs any longer. Instead, install this cataloging routine in programs that maintain sequential filespecs.
No disk directory can suit everyone’s needs. But this one, written for LDOS, has enough flexibility to be adapted with relative ease.
The IDS Paper Tiger is an excellent graphics printer. Here are some graphics techniques in Assembly language. Basic, and Pascal.
Learning a new computer language can be a long tedious process, but this article leads you painlessly into the confusing world of Cobol.
Did you have to abandon all your cassette-based Tiny Pascal programs when you upgraded to a disk system? David’s got the answer.
A primer on how to use this shortcut to getting the most out of this issue of 80 Mlcro.
Color Computer
Add commands, statements, and functions to Color Basic and gain more computing power.
These games for the Color Computer will test you, amuse you, and frustate your friends!
Until now, 3-D has been a misnomer for CC graphics. Out CC expert has done the groundwork for real 3-D. It’ll come out and grab you!
With rgeat perseverence, Jake Commander has come up with this steroscopic 3-D program that features a rotating cube in two colors.
In this follow-up to Colorful Maneuvers, the computer is the opponent.
The Color Computer can be a useful tool in language instruction. Here’s a graphic depiction of how the mouth makes certain sounds.
Make up your own character sets in high resolution on a TRS-80 Color Computer with 16K.
What will your Color Computer’s first words be? Here’s a step-by-step method in Assembly languageto get vou and vour CC speaking.
Don’t despair if your Color Computer has only 4K of memory; you can still play graphics games.
Organize your checkbook and reconcile bank statements with this Color Computer program.
The Color Computer can now display green, blue, red, and black on the screen at one time.
Index
80 Micro has published hundreds of articlesand reviews in the past three years. Here’s a list of them.
Here’s a handy list of all programs on Load 80.
Want to find theclubs in your area? Check this out.
Model II
If you would like to keep private correspondence private, this program is for you.
What could be worse than accidentally pressing the break key when running a Basic program on your Model II? Worry no more by disabling break using Debug.
Your Model II can produce bar graphs like those the Models I and III generate.
Indexing your Model II disks will eliminate confusion the next time you look for a program.
Are your Model II programs too long? This program takes out spaces and remarks.
Draw large block letters using regular size letters, any printer, and a Model II.
Determine the profit margin of an investment by computing its internal rate of return.
Peripherals
Epson, IDS. Okidata, NEC-which do you choose?Jim Hansen is an industry insider who can give you good advice when printer shopping.
Transients. surges, power outages. and the like can destroy data and damage your hardware.
Ever wonder about the RS-232 port on the back of your micro? Just how does it receive and send data? Stay tuned. Howard’s got the scoop.
Save money by rewinding muitistrike carbon ribbons for your daisywheel printer.
So you want to add a filter to your video screen, but you think they are too expensive? Follow these directions and build your own.
You will peacefully co-exist with your casselle recorder if you follow these tips and perform these maintenance procedures.
This joystick interface is not only cheap, it is easy to buiid and program for.