Microtechnic Solutions published a user- friendly program for uploading and down­ HELP! loading, one that easily allows me to upload Hclp-intro as you require as well as to download from Do you have anything for this column? The three headings arc: those computers to either disk or printer. The program is called The Smart 64 Termi- (1) Helpful Hints, nal Plus. (2) Who’s Got the Answer? and Alan B. Flaschner #5963 (3) “PET” Pals Wanted. Toledo, Ohio Just send your contributions (including answers to any questionsMy 8K expander which have for the VIC 20 is extremely appeared) to: difficult to plug in and extract, and I find it irritating to discover I am loading a 5K PET Users Group program into an expanded VIC and vice- Dept. Help versa! By using the 8K LOAD program 1912A Avenue Rd., Stc. 1 included on TPUG tape (V)TS, it is possi­ Toronto, Ontario, Canada ble to load 5K programs without extracting M5M 4A1 the memory expander. An alternative Please let us know if you wish your full address published. method is to enter in direct mode the fol­ This month we arc only printing Helpful Hints (we have a backlog) andlowing “PET” instructions: Pals Wanted. We do have 18 questions on hand, but they will have to waitPOKE642,16: until next POKE644,30: POKE648,30: time. There just isn’t room for them this time. SYS 64824 This “cons” the expanded VIC 20 into believ­ ing it has only 3583 bytes of available RAM. To revert back to 8K, enter SYS 64802. I Helpful Hints can now leave my 8K memory expander I assume Mr. Awbrey needs the CP/M sys­ you need them. The other Joystick portplugged is in at all times. tem disk which is normally supplied with56320 if you want it or to use both possibly Barbara A. Cross the SOFTBOX. If so, it is a bit strange that S2 — PEEK(56320) and another set of iTs. Of Brookfield, Nova Scotia course you can set up this peek and print the supplier would not have included this Cleaningheadson tapeand disk units.Tim with the hardware and manual, but it wouldthe values to see exactly how to interpret the movements of your joystick. Tremmel gave excellent advice on this be quite easy to send him a backup 8050 subject in the October issue, but he failed disk if he contacts me. 10?peek(56321 )and 15:goto 10 to point out one thing. You should only Douglas A Staley #3389 will display the numbers returned for eachuse computer approved Texwipes or swabs. Thornhill, Ontario position of the joystick. To chcck (orThese the maybe difficult to get in your area (Editor’s note: Please send Mr. Staley yourfire button fb=((peek(56321)and 16)=0)and if so you can use surgical swabs. The purchase receipt for the SOFTBOX. I am fb=-l when the fire button is pressed. 56320reason for using these special swabs is lint. sure he would not want to risk violatingis the address for the other stick. This lint can build up in your heads and copyright!) cause all sorts of problems including per­ For a more complete explanation ofmanent this damage to your heads or cause (?) Use joystick instead of specified keys technique in see “Joysticks and Sprites ondamage the to your media. program — L. Warner, Toronto " by Sheldon Leeman in Theodore G. Lange I use a C-64 which I believe has Kernal 1. 1 the February 83 issue 33 Vol. 5 No. 2 Riverside, California have converted some PET games to the 64COMPUTE! (?) How to use the 1541 Backup program? and added joystick options. One program Rick Crone #4637 Alan Tomlin, Ontario is Arrow bv that 1 got from 11 I Greenbriar Ln. TPUG BEST GAME 1 (0)X3 disk. I have Jackson, TN 38305 Thanks to Mike Kotuba of Burlington, sent a copy of thisgame to the TPUG library, Ontario and Richard Crone of |ackson however the screen clear routines for the(?) Looking for a program for decisionTennessee tree who also contributed detailed newer C-64 probably will cause the screenanalysis and one to upload ASCi fto PDPinstructions 11/70 on how to use this program. pokes to be the same as background color.and I to an IBM 1341 — Alan Flaschner, Ohio have seen some fixes for this listed but notMr. Flaschner has answered his own ques­(?) Where to get replacement fuse for VIC 20? having the newer machine I can't test the tion. Here is what he has found out — per­Bob Hart, Illinois results. The joystick routine is simple andhaps it will help others. One day I was messing around with the you should be able to insert it in your code user port and accidentally blew the fuse. easily. Erickson and Hall have written a user-Fortunately for me, it only blew the luse. I friendly program for decision tree analysis,thought I would have a hard time finding a The read routine is this: one that will easily allow me to change thereplacement but I was wrong. I just went S1 = PEEK(56321 )AN D 15 probabilities associated with possible events and quickly sec (for example print)down the to a local music store and they hap­ I check to be sure SI is not being used, thenresult of those changes. It is published withinpened to have one for 75 cents. use this routine for the joystick read. 1 setComputer Models for Management Science Brendan Westhoven the keyboard input variable accordinglytext — 14 vy Addison-YVesley and includes a disk­ Lake Havasu, Arizona is up, 7 is right, 11 is left, 13 is down, 15 is ette with 13 programs. center. 10 6,9,5 are the other directions if conlintied overleaf

March/April 1984 TPUG magazine page 9