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C 0 T E T S ISSUE Published June 1996 COMMODORE WORLD 6 Wheels-Laying More Than A Patch THE NEWS MAGAZINE FOR COMMODORE 64 » 1'■ I 1J',[ K1. Bruce Thonuu 14 GOFA-A Modulap- Pcogpamming System Fob The Coeimodore 64 http://wviw.cmiweb.am/cwhtme.hlml George Flanagan General Manager Chinks ft Christiansen ♦ Editor Review; Doug Cot Ion ♦ 24 Software: Centipede 126 E>r Gaelwe R. Gasson Advegtisinq Sales A Look ai ihe Newesi Commodore I2S BBS Program Charles A. Christiansen (413) 525-0023 ♦ Graphic Acts Doug Cotton .UMN! '♦ 26 Jusr Fob Starters by Jason Compton Electronic Pre-Press & Pointing Maiuir/Holden Helpful Hints for Handling Disk Drives ♦ 30 Graphic Interpretation by Bruce Thomas Cover Design by Doug Cotton GEOS: For ti Good lime... 32 Carrier Detect by Gaelyne B. Gasson Tclecommunicationi News & Updates 36 S16 Beat by Mark Fellows Things to Look Out For When Program/Hint- the 65X16 Commodore1" and [he respective Commodore producl names are trademarks or registered trademarks of Commodore, a 38 Over The Edge by Jeffrey L. Jones division of Tulip Compulers. Commodore World is in no way aftiliated wilrtthe owner n! ".he Commodore logo ana technology. Commodore Programming in a SuperCPU World Commodore Worla (ISSN 1078-2515) is published 8 limos annually by Creative Micro Designs. Inc.. 15 Benton Drive, Easl Longrneadow MA 01028-0646. Secono-Class Postage Paid at EasL Longmeaflow MA. (USPS «)n-801| Annual subscnpiion rale is USS29.95 fci U.S. addresses. USS35.95(orC3nada0'Maiico.USSJS.95!orallECCounlnB5. Department paymanlsmusl be provided in U S. Dollars. Mail subscriptions 2 From the Editor to CW Subscriptions, do Crestiva Micro Designs. Inc., P.O. Bo<646. Easl Longmeadow MA 01028-OWfl. 4 On The Horizon Enllrecanlanti copyright ^199S by Cttfltlv* Micro 6 CoMtiODORE Trivia Deilgnt, Inc-, unlais otherwise noted. No part of (his 40 Classified Ads publication may be printed or olhemise reproduced by any means wilhcul prior written consenl Irom Lhe publisher. All 40 Advertiser's Index programs published in Ihis publication are for Ihe personal use of the reader, and may not be copied or in any way dismbuled. All rghls re served. Programming exam pies and routings in this issue which ara presented lor educattonat purposes may be used in ihe crsailon of programs by itia purchaser ol this marjanno, provided creail for tne roulmos is cloarly presonleri in either Ihe program documenlation, or Iho program itself Creative Micro Designs. Inc.. assumes no responsibility ior errors or omissions in editonal, program listings or advertising con'.enl. Creative Micro Designs, Inc. assumes no liability lor advHrtbfifE claims or reliability. POSTMASTER' Sena address changes to CW Address Changes, c/o Creative Micro Designs, tnc. P.O. BoxGJ6. East Longmnaaow MA010t3-0646. WH! ON MOVI In Issue 22 's editorial I indicated that two new GEOS updater's were scheduled to release soon. While we haven 7 heard anything more about GEOS MegaPatch \>3.0yet, Wheels 64 has squealed past the starting line and is presently burning up the track. It is indeed a pleasure to see such a powerful new system released at this point in the history of Commodore computing. Inside this issue we provide some first impressions of Wheels 64; however, we'll also he revisiting this subject in a future issue after looking into technical aspects ofdriver speed, compatibility and other issues. Other things you'll find inside this issue include a modular programming system for the Commodore 64, a review of the Centipede BBS program for the Commodore 128, some tips on dealing with the Y2K (Year 2000) problem in GEOS, and some situations to avoid when programming the 65816. In addition, there's a rant to programmers about avoiding the tendancy to become lulled into writing slow code simply beacuse they have a SuperCPU. I broke this out from the rest because I think it bears an editorial comment. While I tend to agree with the opinion put forth on the matter here by Jeff Jones, I think that it fails to strongly point out that such guidelines needn't befollowed when writing programs for your own use. Many BASIC programmers will find that the SuperCPU enables them to create programs which would have otherwise run loo slow. However, I do still encourage anyone interested in machine language to learn it and take advantage of it when possible—whether you have a SuperCPU or not. Doug Cotton Editor COMMODORE WORLD Issue 23 SO, YOU THOUGHT YOU COULDN'T AFFORD LOADSTAR? LOADSTAR LETTER #54 NOW YOU CAN BUY IT EVERY MONTH BY MAIL FOR Bill Gates Attacked Wheels'GeoFAX LESS THAN IT COST IN THE EIGHTIES - BUT PACKED WITH MORE! By Proisssioiial Pio Swoepslokes The Loadstar Letter is published monthly. It's the BUY IT BY THE MONTH! biggest, most For Loadstar #165 Shipping costs included! For Loadstar teller #54 Informative, and or any back Issue or any back issue authoritative Every month without fail. Loadstar and the Loadstar Letter newsletter available bring you a megabyte of new Commodore Software, articles, tor the Commodore tutorials and entertainment. All of our new software is CMD 64 and 12B drive-friendly, and SuperCPU Compatible. Orders (800) S94-3370 Questions: (31H) 221-8718 LOADSTAR Loadstar #165 Twin Terrors For one or two players, this Contents exciting game offers 99 levels Star Copier'98 of jumping and shooling. Thanks lo Bob Markland, out Gershwin Jukebox handy file copier is fixed! Eight memorable tunes by Fission George Gershwin, including This mouse-driven card solitaire Rhapsody in Blue (in three is also one of Maurice's best. movements), the three Mansion Preludes, and Swanee, made Using Cameron Kaiser's famous by Al Jolson. WORLD MAKER system, John Quicksmith Music invites you into the Charles 31 songs by musicologist Dave. Mansion, where no good deed all converted into the goes unpunished. QUICKSMITH format by Lee Puzzle Page #165 Novak. Number-teasers, word-puzzles Clip Joint #2 and brain-stumpers a-plenty! A geoPaint document chock full Plus. Knees' monograph on ol attractive images just ripe for myslery mores. clipping. Legal Beagle III Geos Disk Tools Generate some more legal Ten tools for the Geos documents which you can environment that will make your customize (or your own use. navigation faster and easier. All Centsible Software Newsletter Naniskad A Night On The Town are well explained by our Geos A list of 50 commercial "in the A compilation of lidbits from Take a musical trip from the Man About Town. box" programs from the world's newsletters from all over the quaint eateries ot the outer city Diskovery largest CBM software store. world. into the heart of darkness we Your editor confronts another Modern Printers call "uptown". crisis, mourns a prolific C-64er. Looking for a new printer for All programs tasted and known lo describes a new product, and your C-64/128? Read this first! Room - 4k Contest Winner work wlih your SupetCPU"1 and introduces a Euro company. A small demo that gives you a Master Of Trades all CMD devices. Over 2DDK of gjimpse ol what the world ol Jeff's Soapbox In memory of a dedicated documentation every monlh DOOM is like. Jeff mediates (or aggravates?) Commodorean, we present Part automatically presented on disk. the battle of the operating One of his autobiography. systems. LOADSTAR" HL.SCW Send Check or Money order to: reach us on the web! PO BOX 30008, ShhevepORT LA 71 13O-O008 http://www.loadstar.com Call t-800-594-3370 AND Order This Month's LOADSTAR for S7.95 fenderv?loadstar.com [email protected] Or Order This Month's LOADSTAR Letter for S2.00 [email protected] Or get sd7tvforS9.95! All major Credit cards accepted. or Fax youR order to (318) 221-8870 Name: Address: □ ScnJ l Uirtr «SJ fotSltt} □ Sendbahfof ».9! Credit Caid Exp. D.na Si \r ilure Issue 23 CDMMODORG WORLD Commodoiil: and Comi'u ikk Industry Nkws Wheels 64 Released Desterm Updated Beta Available Maurice Randall's Click 1 lere Software has recently started After several weeks of testing and bug fixing, Matthew shipping the initial release version of Wheels 64. The Desmond has released an updated Beta version of Desterm program is a substantial upgrade for existing GFOS (54 v2.0 128, a Commodore 128-specific terminal program. In owners, adding a new user interface and completely reality, two updated beta version have been released in the revamping the existing GHOS Kernal via a patch installation. past few weeks; thefirst.v3.01, fixed the majority of reported In addition. Wheels provides extensive support for nearly bugs, but introduced a rather nasty hug of its own. Several all of the major Commodore-compatible peripherals days later a new version 3.02 was released which resolved released over the past few years. Wheels requires a minimum the new problem. The new release is still considered lobe a of a Commodore 64, GEOS f>4 v2.0, a GEOS-supported beta test version, so be aware that additional bugs may input device, a 1541 disk drive and an REU or other standard exist. For additional information, or to obtain the current RAM device. The price for Wheels 64 is $36.00, and it is version, visit the Official Desterm web page at: available directly from Click Here Software and authorized dealers. Por additional details, see the feature article in this http://www.ionline.net/~mdesmond/desterm.html issue or contact Click 1 lere Software at: Click Mere Software c/o Maurice Randall CMD News Items P.O. Box 606 CMD recently disclosed that all pre-orderedSuperCPU 128 Charlotte MI 48813 units have been shipped, and that they are also current on Phone: (517) 543-5202 Monday-Friday 8 am - 6 pm orders for both the SuperCPU 64 and SuperCPU 128.