Printed In The United States Of America

POSTMASTER Please send change of address form 3579 to 80-U.S. Journal, 3838 South Warner Street, Tacoma, Washington 98409-4698 Second Class Postage PAID at Tacoma, Washington and at additional entry point. *TRS-80 is a trademark of the Tandy Corporation A 12-column Ledger - Fred Blechman 13 Business Computers A planning guide - Joel Makower----22 BASIC Compilers - Expand your Color computer memory - R Wayne Day 38 Shift for uppercase - William R Bell 43 Exatron's Floppy disk controller - Staff...

Goto

This trick will only work on the Model II and Color computer. It does not function on the Model I or III. Thanks to Bill Dickson, New Orleans, LA In the Model II, the random access memory used for video memory is switched in and out of locations F800 through FF7F. You can do this manually by sending 81 to port FF to switch it in (overlaying that portion of memory) and send 01 to switch it out. All figures are expressed in hexadecimal. Thanks to Gerald Lippey, Los Angeles, CA When the tape...

Other Mysteries

TRS-H0 s a trademark of Tandy, Microsoft is trademark of Microsoft. 330 DATA DIME, DIM, 0, 28, LARGE B ED, BED, 1, 28, CEREMONIAL BED P AN*, PAN, 0, 28, WALK IN CLOSET, CLO> 1, 28 340 DATA *BILLY JOWL (SIC) RECORD AL BUM*, ALB, 2, 29, UMBRELLA, UMB , 2, 30, *ALUMINUM PSEUDO CHRISTMAS TREE*, TRE, 1, 31 350 DATA BOLTS, BOL, 0, 31, WINDOW WIN, 1, 31, *DICE EARRINGS*, EAR, 2, 32, SPRINKLER SPRAYING WATE R, SPR, 1, 33 360 DATA *PLASTIC FLAMINGO*, FLA, 0 , 33, SIGN SAYS LOOK SP.,., SIG, 1, 33,...

Complete Line Of Ready To Run Trs Color Computer Paks

Compatible with both Mode* i and ill No separate purchases 'equired Wof**w h ny tot Aare me ud ng ST-SOby MiCkluS Active dea D'eu* and coniro* keys Hait 0< tuli duplex variable o< 'ength pa' iy and D a trom phone *eyboa'd or memory Work wth of without Model Hi S 23 card Can be placed o* ettier s de o1 Mode ill No tools n ded to nsta

Lynx Telephone Modem

COMPLETE WITH SOFTWARE AND HARDWARE FOR MODELS I AND III The RS-232 is not needed Completely assembled. LYNX MODEMS are compatible with ST-80 III also 299.95 ST-80 III Smart terminal program. Allows saving data to disk or sending data from disk and more Mod I or III 149.95 PRINTERS SPECIAL FREE CABLES AND FREE SHIPPING WITH ALL PRINTERS CABLES FOR MODEL I EXPANSION INTERFACE, MOD III, or PMC-80 EXP 100 or PIF-40 only.) PLEASE SPECIFY WHICH COMPUTER

Gosub

When you run that program your message which might be something different from what we suggested, of course will simply hang there on the blank screen until you touch a key. That's just the beginning. After you've run this two liner and come back to BASIC and before you LIST or EDIT anything, enter (in COMMAND mode) Z . Hey, that's the key you hit if it was a character and not a control key. If it was a digit from 0 thru 9, try asking ZZ. That's a true number, not a string character. See the...

The Finest In Fantasy Game Software

At Crystal we are doing our best to provide the finest state-of-the-art graphic adventure software in the world. Our list of credits include the first indoor-outdoor graphic adventure, the first multi-disk graphic adventure, and now for the Atari, the first graphic adventure in the world which includes screen scrolling and animation. The era of the text adventure and games which are simple combinations of static graphics and text is rapidly drawing to a close. We attempt to utilize the full...

Everest Explorer

By William Godwin & Don Knowlton EVEREST EXPLORER lets you challenge the world's highest mourtain without ever leaving home. You make all the decisions in this logistical simulation. You select the manpower, food, fuel, shelter and oxygen you need. Then manipulate your resources to outwit the elements and terrain, establishing ever higher encampments. Will you reach Everest's 29,028 foot summit and return to tell about it Just 19.95 for model I or III. Order on 16K tape, or the 32K disk...

UPPERcase

For Model I with lower case installed If you have a lowercase modification in your TRS-80 Model I Level II and a simple driver, you may find that you produce lowercase when you press the shift key with a letter. This is reverse from a typewriter, which normally will produce an uppercase letter This hardware modification will give you a switch-selectable uppercase or lowercase when used with the shift key. The keys, other than letters and the key, are not affected. Two integrated circuits IC's...

Hog jowl mansion

A zany adventure for all TRS-80 models Did you ever have the desire to escape reality for a while and assume the identity of someone else in another place on a fictitious endeavor Well, this program can do it all for you. You are a nasty repossessor who commands his puppet or flunky to do his dirty work. Since your puppet is relatively unintelligent, and has a vocabulary of only thirty-eight verbs and ninety-two nouns, you can communicate to him in only one and two word sentences. Some words he...

High Technology At Affordable Prices

PORTFOLIO MANAGEMENT SYSTEMS OPTION PRICE ANALYSIS PROGRAMS volatility, time premium, Black-Scholes STOCK PRICE TREND ANALYSIS volume, price, direction, screens FUNDAMENTAL amp TECHNICAL ANALYSIS P E, yield, dividend performance, etc. ON BALANCE VOLUME-Granville COMMODITIES. BONDS. WARRANTS COMPUTER INVESTOR NEWSLETTER AVAILABLE Over 100 easy-to-use professional investment analysis programs similar to those used Dy the large investment houses now made affordable. For Apple. TRS-80, ATARI. PET....