Help categorize the TRS-80 software archive

THE MASTER MECHANICS SET FOR LDOS By Powersoft NOW 34.99 A 39.95 VALUE 9 UTILITY PROGRAMS TO ENHANCE YOUR LDOS LIBRARY PMOD/CMO PCHECK/CMO PFIX/CMO PVU/CMO PCLEAR/CMO PSS/CMO PREFORM/CMO PMAP/CMO PASSGO/CMO DISK MODIFICATION UTILITY DIRECTORY CHECK UTILITY DIRECTORY REPAIR UTILITY SECTOR VERIFICATION UTILITY DISK CLEANUP UTILITY FILE SECTOR STATUS REFORMAT WITHOUT ERASE DISKETTE AND FILE MAP PASSWORD REMOVAL MOD I or MOD III

THE MASTER MECHANICS SET FOR LDOS By Powersoft NOW 34.99 A 39.95 VALUE 9 UTILITY PROGRAMS TO ENHANCE YOUR LDOS LIBRARY PMOD/CMO PCHECK/CMO PFIX/CMO PVU/CMO PCLEAR/CMO PSS/CMO PREFORM/CMO PMAP/CMO PASSGO/CMO DISK MODIFICATION UTILITY DIRECTORY CHECK UTILITY DIRECTORY REPAIR UTILITY SECTOR VERIFICATION UTILITY DISK CLEANUP UTILITY FILE SECTOR STATUS REFORMAT WITHOUT ERASE DISKETTE AND FILE MAP PASSWORD REMOVAL MOD I or MOD III

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95

ADVENTURES!!! For TRS-80 and COLOR-80. These Adventures are written in BASIC, are full featured, fast action, full plotted adventures that take 30-50 hours to play. (Adventures are interactive fantasies. It's like reading a book except that you are the main character as you give the computer commands like 'Look in the Coffin' and 'Light the torch.') Adventures require 16K. They sell for $14.95 each. PYRAMID (by Rodger Olsen) This is our most challenging ADVENTURE. It is a treasure hunt in a pyramid full of problems. Exciting and tough! AARDVARK - 80 2352 S. Commerce, Walled Lake, MI 48088 (313) 669-3110

Pyramid. Explore the unknown passages of a forgotten Egyptian tomb in search of hidden treasure. You may be the adventurer who gains fabulous wealth. But be careful-you never know what's ahead! An exciting adventure! 26-1909 14.95<br><br>Sourcebook:<br>You are standing before the great lost pyramid. The seal of the tomb is still unbroken this is the beginning of your adventure. Explore for treasure, but beware- 16 li or lii<br>Price: $14.95

A very realistic and challenging solitaire card game. The program checks for illegal moves and improper entries. Has graphics and thorough instructions. Can be habit forming.<br>Price: $9.95

This program allows one to buy or short any number of contracts at any price and indicates margin call levels, break even price. Gives insight into pyramiding.<br>Price: $10.00

SoftSide September, 1979 VOL. I, NO. 12 inchyour BASIC software magazine' CONTENTS Treasure Dungeon - Tutorial David E. White 8 Hangman Russell Starkey 26 Pyramids Lewis E. Garrison 36 Immediate Mode Dean C. Westervelt 54 Engineer David Bohlke 58 TSE Market Basket Catalog TRS-80 Software Exchange 66 Correction TANK, July, 1979 SoftSide 32 STAFF Publisher Roger W. Robbins, Sr. Editor George Blum Copy Editor Florida Day Software Editor Jack Moore Advertising/Business Manager Elizabeth Robbins Marketing Manager Joseph A. Brown Art/Production Manager Sharon Demmaris Layout/Composition Brice Scelotti Leon Miller Customer Service Bette Kiernan Subscriptions Diana Bishop, Mgr. Mailing Department Bea Kinnear, Coordinator Lester Anderson, Courier Clinical Assistants Jeanne Streeter Karen Fissette Brenda Cushman Accounting Rita Ellis Programmers Philip Brown Mark Shourd, Asst. Programming Assistants Brian Benisario David K. Robbins Printing Memorial Press Group SoftSide magazine is continually seeking original articles and software for publication. Imagination and variety in concept and content are the rules at SoftSide - not the exceptions. Articles are purchased on a per-page basis, based on content and applicability. Our policies with respect to software purchase are highly individualized, and offer the programmer several options, including one-time publication rights, outright purchase, and royalties on sale of pre-recorded cassettes. For more information, please write: SoftSide, PO Box 68, Milford, NH 03055. For uniformity, we have adopted the Radio Shack TRS-80 Level II BASIC as the BASIC dialect used within the pages of this magazine. It was chosen because it stands to become the most commonly used dialect among microcomputer users and because it shares a common heritage with the many microcomputer languages produced by Microsoft. SoftSide is published monthly by SoftSide Publications, 17 Briar Cliff Dr. Milford, NH 03055 Telephone: 603-673-5144. Subscription rates: USA bulk rate - $18 per year. USA first class, APO, FPO, Canada, Mexico, overseas surface mail - $25 per year. Overseas airmail - $38 per year. All remittances must be in U.S. funds. Mail subscription inquiries to: SoftSide Subscriptions, PO Box 68, Milford, NH 03055. Entire contents copyright 1979 SoftSide Publications. All Rights Reserved. 3

TRS-80 GAMES PACK III, IV, and V (TRS-80 only) Here are three collections of game software written specifically for the TRS-80. Almost all of the programs are graphics oriented. Each is professionally written by a DYNACOMP author, and each is sure to please you. We expect to sell quite a few of these collections because they are such a bargain. Minimum RAM: 32K (cassette), 48K (diskette). GAMES PACK III BUY LOW/SELL HIGH - A stock market and investment simulation for 1 to 3 players. Educational, and fun, too! HYPERDOM - A dominoes-like game which combines coordination, graphics, and skill. PYRAMIDS OF GAR - A graphics adventure. Price: $19.95 Diskette GAMES PACK IV SUBMARINE BLOCKADE - An action and sound arcade game with submarines, airplanes, mines, etc. (machine language for fast play!). AIR DEFENSE - An action and sound game involving airplanes and missiles (machine language). STARSHIP DOGFIGHT - This is an extremely good graphics/arcade game similar to Atari's SPACE RAIDERS. Includes sound (machine language). Price: $19.95 Diskette GAMES PACK V LUNAR VOYAGER - The classic LEM LANDER, but with new twists: you draw your own lunar landscape, and you must return to the mother ship after landing. SPACE PIRATES - An action/graphics arcade game. You move and rotate your ship to fire at invading ships. SPACE ATTACKERS - Action similar to Atari's SPACE INVADERS. Price: $19.95 Cassette or Diskette Sample displays:

Learn how to build those popular smoke bombs, flash powders, M80'S ect also contains chemical listings. Approximately 11 screens long.<br>Price: $9.95

This program will find all right triangles with integral side lengths utilizing a clever algorithm.<br>Price: $6.95

Pythagoras and the Dragon Mathematics in a fantasy game context. Based on THE SWORD OF ZEDEK introduces Pythagoras as a mentor to the player. When called on for aid, Pythagoras poses math questions and depending on the speed and accuracy of response, confers secret information. With Pythagoras as an ally, the quest to overthrow Ra, The Master of Evil, assumes a new dimension of complexity. Depending on the level chosen, problems range from arithmetic through plane geometry APPLE, TRS80, PET, ATARI 32K $39.95 KREIL SOFTWARE CORP. The state of the art in educational computing 1320 Stony Brook Road / Stony Brook NY 11790 Telephone 516-751-5139

QASM - A BRIDGE TO MACHINE CODE This program is aimed at two types of customers. The first is the one who feels that he has mastered the Basic language and wishes to turn his attention to machine code, but is not quite sure how to go about it. The second is the experienced machine code hacker. For the second category, QASM is essentially a collection of sub-routines plus a list of equates. The idea is that the equates are loaded into the editor and called as necessary. At run time QASM itself is loaded in addition to whatever program has been assembled and, of course, the equates call QASM. For the customer who is just starting to get his feet wet in machine code programming, QASM will prove to be a godsend. The difficulty that a lot of people have is trying to get their mind away from the ease and almost English like syntax of Basic and into the idea of using registers and various other functions for manipulating the data. Although this catalogue is not intended as a tutorial, people may be interested to know that a very good way of bridging the gap between Basic, in particular, but no doubt other high level languages as well, is to buy and use a programmable calculator. These are not quite as popular as they used to be because we now have pocket computers, but you can still buy them. We are more conversant with the Texas Instrument SR series but these remarks apply equally well to the Hewlett Packard. With these calculators one is forced to use registers rather than variable names. Also it introduces one to the concept of indirect addressing in a moderately painless fashion. Anyway, this is all by the by, particularly in the context of the description of this program, because QASM will, to a large extent, save you the cost of a programmable calculator. In other words, QASM forms a bridge between Basic and machine code. Those readers who use assemblers may skip the next paragraph or two because it is necessary for us to explain some of the mechanics before those customers unacquainted with assembly can understand what QASM is all about. In a Basic program, if one wants to call a subroutine then one uses the command GOSUB and follows it with a line number. If one wishes to branch or jump to another section of the program without a return, then one uses the statement GOTO. One of the big differences of assembly language (incidentally, 'assembly language' and 'machine code' or 'machine language' are all used pretty well interchangeably) is that one does not define a line number to which a jump, conditional or otherwise, is to be made. One defines it by giving it what is called a label. Usually this is a mnemonic of the function of the subroutine. If one has, for instance, a subroutine that performs a SIN function on a number in a particular register, then one might well call the subroutine SIN. Furthermore, it is often very useful to make a mnemonic description label equal to something other than a subroutine. Take, for instance, the situation where a program is frequently calling something in ROM. For example, in cassette work the better known ROM routines are clustered around the 200H area of ROM. A call to 212H turns on the motor of the cassette on the Model I, a call to 284H writes the tape leader, a call to 264H writes one byte from the A register and so on. It is perfectly possible in a program if one wants to turn on the cassette motor simply to assemble the instruction CALL212H. However, if at the beginning of the program one has made 212H equal to the label MOTOR then obviously the program is going to be much more readable, in that one can CALL MOTOR. Hence, most people use the Equate command in the assembler to set up labels, both within and without the limits of the program. QASM consists of two separate sections of code. The first is in what is called source form and it may be loaded into an assembler. It consists of a large number of equate statements. There are about 110 or so in all. These are loaded into the Editor/Assembler that the customer is using before he starts to write his program. The program is then written using as many of the equates as the author wishes and then assembled in the normal way. When the thus written program comes to be used, the other section of QASM is loaded in addition to the home written program. The address of the equates tie up with the addresses of QASM and, as QASM and the program are both in memory, the machine will consider the two to be one. In other words, that QASM and the custom written program are one program. This is an extremely fast way of writing code because over 100 subroutines have already been written for you. This no doubt why Mr. Woodruff (who also wrote Horolog, Astrolog and Astronomical Calender) used the acronym for 'Quick ASeMbly'. More important than speed of assembly however, those people who are just starting to write assembly have not only got a large quantity of code already written for them, but it has been labelled in such a way that it is meaningful to a person familiar with Basic. Thus, pretty well all of the mathematical functions are supported as is the random function and even the FOR NEXT loops. Let us illustrate the use of QASM with the random number. A normal basic statement would be A = RND(20). If you are not familiar with machine code you might scratch your head for quite a while trying to find a way of converting this Basic statement, which you know so well, into the equivalent assembly code. With QASM, it is only necessary to assemble four lines as follows: LD HL,20 --- --- CALL RND LD HL,XA CALL FPV The first line stores the number 20 into the HL register, the second line calls the subroutine in QASM, entitled RND, the third loads the address of a pseudo variable XA and the final line calls a subroutine in QASM which puts the random number into the pseudo variable. It will be seen, therefore, that the task of producing a random variable in machine language has been made rather simple because of the help given by QASM. QASM operates in single precision, it does not support double precision. As we have seen, QASM supports what we have termed pseudo variables, and you may perform pretty well any mathematical function upon them. SIN, COS, TAN, ATN, SQR, SGN FIX, INT, ABS, LOG and EXP, for instance, all carry out the same functions as their Basic equivalent. We have already mentioned that Random is supported, so also are three comparisons, namely compare equally, compare larger or compare smaller. FOR NEXT loops on n, GOTO, GOSUBs and so on are all available. There are also special routines for accepting a number from the keyboard and printing. Strings are also supported. For instance, the common Basic statement PRINT x A$ in QASM language becomes: LD HL,YA --- --- CALL PTLIN The first line stores a pointer in the register HL,YA, of course, is the string variable and the call simply prints it out. String manipulation is also supported, such as Basic statements LEN and ASC. The Basic statement READ is supported in a sort of quasi way. Arrays are supported. In the field of graphics, SET, RESET and POINT in QASM are the same as the Basic equivalents. As we have said, we do not have the space to list all of the calls in QASM, but the above should give a pretty good idea of the extent of this extremely useful utility. QASM is supplied with a printout of a demonstration program which uses its functions. This is fully commented and would be very useful to people who want to see how QASM is used. Although irrelevant to its function as a demonstration program, the program does in fact calculate the distance in nautical miles on great circle routes.

Zoom Offers New Software Three new software programs for the Model I are now available. QKEDT ($14.95), a utility for cassette Electric Pencil users, converts Basic programs into ASCII files which can then be read into the Pencil, and vice versa. Basic programs can be typed in using the Pencil instead of the Level II line editor. TCHTYP ($10.95), useful for teaching children numbers and letters or for practicing your touch typing, fills the screen with one giant character on the instant any key is hit. Written in machine code, this program provides both upper and lowercase characters. A graphics editor permits modification of characters. ZMBUG 2.0 ($17.50, for Zoom 3.6 users) searches for file names, verifies recordings, lists addresses of all files encountered, converts Basic programming into Pencil files, and loads and saves at 3,600 bits per second. These programs are available from Zoom, Box 1496, Raton, NM 87740, (505) 445-5787.

AMATEUR LOG - A UTILITY FOR THE HAM This program is strictly for the radio amateur and will have no application to anyone else. It is designed to store and re-access all on air activity of a radio amateur and provides real time QSO logging, history file access, file update and create, repeater timer, QRA locator and full QSY facilities. In use, the time and data are entered into the program first of all, the form in GMT. The program then formats the screen with the work area and waits for a menu prompt as displayed on the split screen. In operation the QSO to be worked is first signed on to the system. The program will then check that the computer has been given a frequency in Mghz. The disk file is then opened to check through for any file with the same call sign. Only one file is created for each call sign on any given disk. If any previous QSO has been worked with that station, the computer will advise that a file exists and will display the first name of the operator and/or the last date worked. If the QSO being worked is not found on the disk, a file is immediately opened. Any file may be updated as required and 250 files may be created on a formatted disk. A disk with a minimum operating system on it can contain 235 records. A repeater timer is available which, upon request, starts counting and displaying seconds from the internal clock. The seconds are displayed at the top right hand corner and will prompt the operator after 10 minutes, if not reset, or after 15 minutes to remind of call sign regulations requiring a call sign to be broadcast. A QRA locator facility is provided which, upon entering the QRA locator, will display the grid reference. Memory Requirement 32k TRS-80 Disk Model 1 & 3 SYSTEM 80 Disk Mark I & II 11-2621

QSD UTILITY DISK #1 FOR LDOS (MOD I) $69.95 ($50 w/LDOS MOD I) Increase the speed and power of your LDOS ! Contains: RESIDE/LD - Allows you to SYSGEN system overlays for increased speed and free space on disk, plus more! LZAP/CMD - Uses resident disk driver of LDOS and thus enjoys its flexibility and device independence. It will auto configure itself to drive capacity. LZAP will support any number of drives from 0-7, any cylinder count up to 255 & any sector number to 255. It supports both single and double density recording formats, automatically! Various drive sizes and densities can be intermixed and LZAP will page between them without error. Many more features. CLONE/CMD - Copy files from DRIVE:1 TO :1 or :2 TO :2 CHANGE/CMD - Change where your drives are set in the device table, re-route output. ERASE/CMD - Erases all unused granules and removes all traces of 'Killed' programs. And By Kim Watt : LCOPY/CMD - Mass file transfer package. Fast and versatile! NUPURGE/CMD - Allows you to selectively purge by Class, List, etc. After you select the files to be purged, it kills them all at one time in 1-2 seconds. RECOVER/CMD - Recovers 'Killed' files. DVORAK/CMD - Gives you the famous DVORAK keyboard layout. LZAP/CMD Available seperately @ $29.95 . LCOPY/CMD Available seperately @ $19.95 - - QUALITY SOFTWARE DISTRIBUTORS TRS-80 & Scripsit are Trademarks of Tandy Corp. 11500 STEMMONS EXPRESSWAY, SUITE 104 DALLAS, TEXAS 75229 PHONE (214) 484-2976 MICRONET 70130,203 Price Does Not Include Postage

QSL MANAGER Did you remember to send a QSL card to the op you worked last week? Maybe you sent a QSL, but can't recall getting one in return. The QSL Manager program will help you set up a computerized log book for instant access to your records. Make complete log entries which include: date, time, call sign, name, band, both the Sent and Received signal reports, the mode, QSL sent/received, and any remarks you may want to add. No more fumbling with index cards during a QSO, because the QSL Manager has a built-in search function to locate and display information on any call sign in your records. You can even list all the QSO's for a particular date, time, band worked, mode or a specific signal report. The program will automatically check to see how much memory you have in your system. If you have a two disk, 32K system, you may have a maximum of 1000 entries in your log (500 entries if you have a single disk system). A 48K system limits you to 1400 entries. These limits are caused by the fact that you have only 350 sectors on a disk. Each entry used 1/4 of a sector, thus the 1400 entry limit. The program has built-in editing features that help you keep your log book up-to-date. There's also a command that lets you output your log entries to a printer for hard copy. In the next QSO, knock their socks off with your infallible memory. Model I, Level II, 16K, Expansion Interface + one disk drive. 0151RD (Disk) $19.95<br><br>Sourcebook:<br>Will help you set up a computerized log book that will give you instant access to your records. This prgm has built-in editing features plus a command that lets you output your log entries to a printer.<br>Price: $19.95

QSL MANAGER Did you remember to send a QSL card to the op you worked last week? Maybe you sent a QSL, but can't recall getting one in return. The QSL Manager program will help you set up a computerized log book for instant access to your records. Make complete log entries which include: date, time, call sign, name, band, both the Sent and Received signal reports, the mode, QSL sent/received, and any remarks you may want to add. No more fumbling with index cards during a QSO, because the QSL Manager has a built-in search function to locate and display information on any call sign in your records. You can even list all the QSO's for a particular date, time, band worked, mode or a specific signal report. The program will automatically check to see how much memory you have in your system. If you have a two disk, 32K system, you may have a maximum of 1000 entries in your log (500 entries if you have a single disk system). A 48K system limits you to 1400 entries. These limits are caused by the fact that you have only 350 sectors on a disk. Each entry used 1/4 of a sector, thus the 1400 entry limit. The program has built-in editing features that help you keep your log book up-to-date. There's also a command that lets you output your log entries to a printer for hard copy. In the next QSO, knock their socks off with your infallible memory. Model I, Level II, 16K, Expansion Interface + one disk drive. 0151RD (Disk) $19.95<br><br>Sourcebook:<br>Will help you set up a computerized log book that will give you instant access to your records. This prgm has built-in editing features plus a command that lets you output your log entries to a printer.<br>Price: $19.95

QSO LOG Special program for amateur operators; holds all details of 70 QSO's in 16K, 190 in 32K (specify). Instant on-screen access to entries; prints sorted calls and details. TRS-80 Cass. $14.95 MANHATTAN SOFTWARE P.O. BOX 1063 WOODLAND HILLS, CA 91365 10% discount on orders of 3 or more programs. Add $1.50 shipping and handling - 48 hour shipment. Overseas orders add 15% for Air Mail Postage. California residents add 6% tax. 24-hour Visa/MasterCard Order Line: (213) 704-8495

QSO Log for Ham Radio Operators QSO Log, from Manhattan Software is directed at amateur radio operators. When a call sign is heard on the air the operator using QSO Log enters the sign into the computer. QSO Log will list call, name, QTH, date, time, band, and notes on conversation and on the contact's equipment. The program dumps to tape, loads to tape, and allows on-screen review of all QSO records. It also allows updating, editing and deletion of entries and printout. The cassette version (16K or 32K) will run on the Model I or III and is priced at $14.95. For additional information contact Manhattan Software, P.O. Box 1063, Woodland Hills, CA 91365, (213) 704-8495.

Generates morse code from keyboard and stores up to 9 messages of 240 characters each for immediate recall. 1 to 60 wpm. Uses cassette motor relay to key transmitter or oscillator. Instructions included.<br>Price: $9.95 cassette, $4.95 source

PUT YOUR COMPUTER TO WORK SAVING $$ EVERY TIME YOU BUY GROCERIES !! QSORT is a fast, menu driven assembly language program that keeps track of up to 1200 store coupons. Enter your shopping list and QSORT locates every usable coupon within seconds. A special filing system speeds physical retrieval of any coupon to a few seconds. Comprehensive manual Satisfaction Guaranteed or your Money Back Specify Model I or III cassette or disc $39.90 ppd (Calif. residents add 6%) BV ENGINEERING P.O. BOX 3351, RIVERSIDE, CA 92519 (714) 781-0252

QUAD - MIND BENDING Quad is three dimension noughts and crosses. As its name implies, it is played on a cube of four layers each with four ranks. Like noughts and crosses, the aim of the game is to get crosses and noughts in a line either horizontally, vertically or diagonally. The cube is depicted graphically on the VDU and either two players may take part or a single player may play the computer. Four levels of difficulty are provided and a time clock is also included for each move. A particularly important feature of the game is that the cube on which the game is played may be rotated so that the player can see it from a different angle. A number of commands are provided including setting up previous positions, backing up to a previous position, progressing to the next position, reversal of order of play and switching of opponents. This is a complex game of strategy in which the player will need all his skills. Memory Requirement 16k TRS-80 Tape Model 1 & 3 40-2645

TRS-80 Level II QUALITY PROGRAMS ON CASSETTE CS-1 4-16K $10 TERRAIN --Design a 3-D landscape & QUADRAFLAKE --CPU - generated graphics & CUBES --More 3-D graphics PFDC SOFTWARE 784 GOUCHER STREET GRETNA, LA 70053 . 10% discount on orders totaling $30 or more.

New! Math Packages for High School or College These three outstanding programs provide challenges for students from high school to college levels. Each requires 16K Model III or I (with Model III or Level II BASIC) and cassette recorder, or 32K Model III/I disk system. Each is compatible with Networks 1, 2 and 3. Quadratic Equations. Provides practice in solving quadratic equations, plus equation recognition, coefficient recognition, discriminant evaluation, determining the type of roots and evaluation of roots. 26-2623 49.95

Widely acclaimed method. Teaches the best method for solving rational quadratics. No guess, trial error, quadratic formula, or completing the square. Developed by math prof. Used by 1000+ coll and hs students.<br>Price: $28.95 disk, $23.95 cassette

QUAGMIRE - A COMPUTERISED ELECTRONIC GAME Quagmire was first invented as an electronic game and first appeared as a constructional project in 'Everyday Electronics'. This software incorporates all of the features of the original, plus several improvements. It is tempting to categorise it as a maze game, but in fact it is not. To a large extent it is a game of skill and certainly experience. Perhaps the best simile to describe it is to imagine a marsh criss-crossed by a network of narrow paths. The path is safe, except for certain spots (which are marked on the screen map upon which the game is played) which may be dangerous. If possible, the player should jump over them. However, sometimes they are particularly dangerous and landing on them can be fatal. It is a game of suspense, skill and strategy for 2, 3 or 4 players of all ages. The skill comes in because at the centre of the map is a flashing area which indicates the level of danger at the marshy sites. If it is flashing slowly it is safe to land, but the faster it flashes the more risk such a move causes. Indeed, if you land on one of these spots when the flashing is at its fastest then it is almost inevitable that the player will sink into the quagmire and his piece (of which, incidentally, he has four) will be lost from the game. The flashing serves a further purpose. To determine the direction of your move, the player must press one of the keys N, S, E, or W. If the key is pressed whilst the flashing block is illuminated, the move will be for two spaces, otherwise for one. This additional space can be very important because it allows the player to make rapid progress across the marsh and (often more importantly) to leap over the danger spots. This is where the element of skill enters the game, especially if the patch is flashing rapidly and danger is at its highest. Keying at the wrong time can land you straight into a danger spot. It is hard to categorise this game. It is most enjoyable and although we have never played the original, we would think that this computerised version has a large number of advantages. We imagine that in some respects it is similar to a 'de-luxe' version of Snakes and Ladders, but it seems to have an appeal all of its own. The competitive ingredient is very high. In other words, a fun game.

QUALITY ASSURANCE SYSTEM This is a complete system which will allow you to ask your own questions, set your own standards, and do your own testing on just about any product, process, or service. Information about standards, last product tested or accumulated product testing can be listed or printed quickly. Data entry and editing is fast and easy to learn because it incorporates all the features of our Input Subroutine (above). Requires 48K, 1 or more disk. (Recommended Dos: DOSPLUS) Quality Assurance System (Model I / III): $79.00 Manual only: $10.00 PICOTRIN TECHNOLOGY, INC. 474 3531 San Castle Blvd. Lantana, Fl. 33462 (305) 586-2377 Specify your complete computer system when ordering. Write for more information. Fl. residents add sales tax.

Mean, standard deviation, c.v., and cumulative deviation calculated. Cusum and levey-jennings plots printed out. Accuracy and precision limits preset, so that out-of control situations are flagged.<br>Price: $250.00 disk, $225.00 cassette

Quality control charts xbar and/ sigma sample size and precision analysis regression and correlation. Tool ware - regression with limits.<br>Price: $145.00 disk, $145.00 cassette, $70.00 source

Quality control charts p with var n operating characteristic curves and average outgoing quality binomial and hypergeometric-precision and sample size analysis cassette version available<br>Price: $145.00 disk, $145.00 cassette, $70.00 source

Computes and displays fast qualifying time, racing grid, and press notes. Usable under usac, cart, nascar, scca, qualifying systems. Also useful for autocrosses, slaloms, track and field, scoring. Quick printer II OK.<br>Price: $100.00 disk, $100.00 cassette, $50.00 source

Based on percentages researched from thousands of races. User inputs from authors instruction booklet for factors in horses past performance chart. Computes all values. Prints an odds line simple-fun-profitab<br>Price: $50.00

Comprehensive system rates speed, consistency, class, trainer, jockey, earnings, as well as other salient factors and is packaged in an easy to use format instructions accompany cassette powerful win formula.<br>Price: $25.00

QUEEN'S FOOTBALL SCOUTING REPORT HI, COACH: Would you like to finish your scouting reports in 1 hour and then relax? If so, we have the answer. A COMPLETE ANALYSIS OF OPPONENTS OFFENSE AND DEFENSE DOWNS by short, medium, and long yardage HASH MARKS FORMATION FIELD POSITIONS Each is analysed by number of times each hole was run; the play number used; was it a quarterback keep, an Option, a counter option series, a Wing back play, or fullback play. If a pass play, it gives zone - complete or incomplete. FLEXIBLE SYSTEM - USE YOUR OWN NUMBERING SYSTEM SCOUTS NEED TO ONLY IDENTIFY DOWN, HASH MARKS, YARD LINE, FORMATION, YARDS GAINED OR LOST, AND BALL HANDLER. 'NO COMPUTER EXPERIENCE NECESSARY' WORKS EQUALLY WELL WITH PEE WEE, LITTLE LEAGUE, HIGH SCHOOL, COLLEGE, OR PROFESSIONAL FOOTBALL TEAMS. FOR THE TRS80 MODEL I or III Requires disk drive printer Special - $149.95 PROGRESSIVE ELECTRONICS Hours 9 - 6 Mon - Sat 643 E Chestnut St. Lancaster, Ohio, 43130 Phone 614-687-1019

I AM ON THE ROAD IN THE POLICE VAN. I SEE: SIGN VAN COMING? SIGN SAYS 'NO PARKING'. Scene from QUEST Adventures with GRAPHICS & SOUND by Robert Nicholas from Mad Hatter These two adventures are similar to most others where you use two word sentences to explore. But these also show you the 'rooms' and have sound effects! In QUEST you travel in search of fame, fortune, treasures, monsters and more. Three levels of play with a random set up of each game. On cassette $14.95 On disk $24.95

QUEST QUEST - A NEW IDEA IN ADVENTURE GAMES! Different from all the others. Quest is played on a computer generated map of Alesia. Your job is to gather men and supplies by combat, bargaining, exploration of ruins and temples and outright banditry. When your force is strong enough, you attack the Citadel of Moorlock in a life or death battle to the finish. Playable in 2 to 5 hours, this one is different every time. 16K TRS-80 ONLY. $14.95 AARDVARK - 80 2352 S. Commerce, Walled Lake, MI 48088 (313) 669-3110

QUEST FOR POWER by Mark Benioff - An extraordinary game with the adventure and magic of Arthurian legend. Join Galahad as he leaves Camelot in search of the Scroll of Truth. Explore the treacherous depths of the Caves of Somerset, visit the medieval city of Essex. Along the way you will meet powerful wizards and great prophets. The villages of Sunderland and Leeds dot your path. Somewhere in an evil castle called Skenfirth, lurks the devil himself, while the Evil Giant Gogmogo, hungry for human prey, roams the forests. In Fantasyland tradition we include 64 full screens of hires scrolling and some sensational graphic and animation sequences. Well worth the $39.95 1 disk; enjoyable to all ages. Crystal has many other fine fantasy and space games. For a copy of CRYSTAL VISION which includes a complete catalog please send $3.00 to the address below. (408) 778-2966 Our order lines are open 24 hrs. a day 7 days a week. CRYSTAL COMPUTER 17120 Monterey Rd., Morgan Hill, CA 95037 VISA

Appears in Issue 037 of 80 Microcomputing

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The objective of Quest for the Key of Nightshade is threefold. First, the adventurer must attempt to increase the size and strength of his army. Next, the adventurer must try to collect five pieces of a key that lay scattered throughout

Real-time graphics Exciting sound effects User definable keys Top 20 high score save 100% machine language Minimum system: TRS-80 Mod3/Mod4 16K cassette $19.95 TRS-80 Mod3/Mod4 32K disk $24.95 635 Main Montrose, CO 81401 (303) 249-1400 11-800-336-1414 MC/Visa orders only Dealer inquiries invited.

I AM ON THE ROAD IN THE POLICE VAN. I SEE: SIGN VAN COMING? SIGN SAYS 'NO PARKING'. Scene from QUEST Adventures with GRAPHICS & SOUND by Robert Nicholas from Mad Hatter These two adventures are similar to most others where you use two word sentences to explore. But these also show you the 'rooms' and have sound effects! In QUEST you travel in search of fame, fortune, treasures, monsters and more. Three levels of play with a random set up of each game. On cassette $14.95 On disk $24.95