Hacks

Last month the simplest form of string packing for BASIC programs was illustrated. To recount, the string variables, A and B , were packed with graphic values read from data statements and concatenated using the form, A A + CHR (A), where A is the latest value read from the data statements given. While this method works, it is probably one of the most archaic ways of packing a string. If much string packing takes place, noticeable time will be lost due to the constant redefining of the string A...

Info

'TRS-80 is a registered trademark of Tandy Radio Shack Corporation Machine Language Disk I O 81 Other Mysteries, To Harness The Power of Disk Drives. The best and most complete book on TRS-80 Model I and Model III disk I O available. Machine-Language Disk I O & other mysteries by Michael Wagner. Volume 5 of the popular . . . and other mysteries series published by IJG. More than 190 pages of information and discoveries on the subject of disk I O for the beginner and expert alike, using Z-80...

Valid To

Alter purchasing Grafyx Soin or 80-Grafix, return thi< < oupon with registration form to reteive rebate Mod I, 111 80-GRAFIX 169.95 Create and Save 128 programmable hi-resolution characters shapes Characters are generated within an 8 x 12 matrix (Mod I 6 x 12) Great for creating game figures, symbols, and alternate character sets Excellent software support (20 programs) & extensive documentation Module easily installs within the computer with no soldering Manual only 15 Products...

Dosplus

DOSPLUS 3.3 displays the sector being verified, 3.4 displays the process by cylinder and granule. This formatter is improved over 3.3, as it locks out individual granules with flaws instead of locking out a whole track. This can save some previously wasted space on floppys which have several bad spots and multiple track lockouts. The Format utility (as well as Backup, Copy and Diskzap) is menu driven and straightforward in operation. For the students of Mr. H. C. Pennington, there are two...

Welcomed

Foreign Orders Add 10.00 For Shipping & Handling * For Model I Orders Only * Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 . PLYMOUTH, MICHIGAN 48170 kkk-kkkirk TECHNICAL INFORMATION Cosmopolitan Electronics Corporation C O VERNON HESTER 42403 Old Bridge Road Canton, Ml 48188 (313) 397-3126 Personal Checks Take 2 Weeks To Clear There's a stereotype, in American folklore of the astute small town businessman who operates from a roll-top desk piled...

Colorforth

COLOR-FORTH for the TRS-80 Color Computer 6809 is now available. Prices are 58.95 for the RAM version and 123 for the ROM plus RAM version. Included with the ROM are instructions for installing it in the disk controller, or it will work in a ROM cartridge. COLOR-FORTH works with both disk and tape. The ROM version will work with 4K of RAM. The RAM-based version requires 16K. COLOR-FORTH comes with a powerful Semigraphic-8 editor and a set of utilities. It has a unique trace feature, and handles...

Excellonix

7180 woodrow Wl ls' Los Angeles, CA 9 213 650-575't - 714 973-1939 Easy File Database. Mail List, ect . 15.00 Easy File Disk, 32K Min , Model l lll . 15.00 Stock Quest 39-week Data File 11.00 Zaars Citadel rnd situation Game 5.00 Miners Hammurabi Type Game 4.00 Stock Game Easy Type Stock Market 51625 Chestnut Road Granger, IN 46530 For 16K TRS-801 Color and Model l lll Tape Only Specify Eliminate disk re-boots and data loss due to poor contact problems at card eage connectors. The GOLD PLUG -...

Scarfman Armored Patrol Rearguard Strike Force

This incredibly popular game craze now runs on your TRS-80' It's eat or be eaten You run Scrarlman aroond the maze, gobbling up everything in your path. Try to eat it all before nasty monsters devour you Excellent high speed machine language action game from the Cornsoft Group With sound. Price A

Penetrator

Soar swiftly over lagged landscape, swooping high and low to avoid obstacles and enemy missiles attacks With miles of wild terrain and tunnels to penetrate, you're well armed with bombs and multiple forward missile capability From Melbourne House. Features sound, trainer mode and customizing program Price C add s2 00 per oroer for shipping and handling we accept visa mastercard checks m o coo add s3 00 extra nv residents aod sales tax overseas fpo apo add 10 dealer discoun rs available

Dosplus and D

An operating system that makes compatibility easy The TRS-80 Model I owner can easily lay claim to a wider choice of operating systems and hardware configurations than for any computer system since the IBM System 360. The choices vary from the simple TRSDOS 2.3 and OS-8O to the very complete NEWDOS 8O version 2.0 from the folks at Apparat . In between have been the excellent products from LOBO and Microsystems Software, as well as NEWDOS-PLUS. In their current offering, Microsystems Software...

At Last An Affordable Compiler

OSI AND TRS-80 COLOR MACHINES The compiler allows you to write your programs in easy BASIC and then automatically generates a machine code equivalent that runs 50 to 150 times faster. It does have some limitations. It takes at least 8K of RAM to run the compiler and it does only support a subset of BASIC about 20 commands including FOR, NEXT, END, GOSUB, GOTO, IF, THEN, RETURN, END, PRINT, STOP, USR X , PEEK, POKE, , , ,-, gt , lt , , VARIABLE NAMES A-Z, SUBSCRIPTED VARIABLES,and INTEGER...