AMIGA Plus Disk Information If this is your original disk that came with AMIGA Plus, PLEASE MAKE A COPY IMMEDIATELY! This disk features the following executable programs which can all be run by double-clicking on their icons from the workbench (unless specifically stated that they run from CLI only): Chaos - Chaos is a fractal drawing demo by Eric Giguere which accompanies his article on Fractals. It is in the Fractals drawer. This program draws points at random according to a simple rule, yet reproduces the intricate group of triangles known as a Sierpinski Triangle. Further info for this and all the other Fractal programs can be displayed by double-clicking the Fractals.Doc icon in the Fractals drawer. Source code (in C) for Eric Giguere's demos is in the FractalSource subdirectory of the Programming drawer. GBMan - Another fractal demo in the Fractals drawer, GBMan makes a kind of gingerbread man, again with random points. If run from the CLI, GBMan will accept x and y starting positions as arguments. (i.e. GBMan -.124 0) Henon - This fractal demo will draw a "Henon map" of a "Strange Attractor". It too will accept initial conditions as arguments from the CLI. (i.e. Henon 0 0) Julia - This fractal demo draws a Julia set. It uses some math functions so the file "mathtrans.library" must be in your LIBS: directory for the program to function. This file will generally be where it belongs so don't worry about it unless this program won't run! This program will also take arguments when run from the CLI. The default starting position is (-1.0, 0.0). Mandelbrot, Mandelbrot32 - These two fractal programs draw the Mandelbrot set. The first in 16 colors, the second in 32 colors. These programs take a while to finish drawing, so be patient... StrangeTraj - The first of the pair of Strange Attractor demos by Arnie Cachelin, StarngeTraj shows the 3D motion of a system with a strange attractor. The three windows show three different projections of the motion. These windows should be rearranged to view the various projections. This program will take arguments for the x, y and z starting coordinates and the number of time steps to evolve the system through. (i.e. type "StrangeTraj 1 1.5 3.2 1000" AttractorTime - Arnie's second demo shows the chaotic behavior of the starnge attractor by plotting the three positions against time. It takes the same command line arguments as StrangeTraj. Dragon - A fractal drawing program written in assembly language by Daniel Wolf. Dragon builds an intricate picture by drawing a simple pattern of lines then replacing each line in that pattern by a smaller version of the whole pattern. This process is repeated until the screen resolution limit is reached. Assembly language source code for this program and Hilbert resides in the FractalSource subdirectory of the Programming drawer. Hilbert - This program, also by Dan Wolf, is very similar to Dragon, except that it uses a different pattern. PolyFrac - Also by Dan Wolf, PolyFrac allows you to choose from five different "generator" patterns including those used by Dragon and Hilbert. After it draws its initial drawing, you can use the menu to select the new pattern. This program appeared in COMPUTE!'s "Amiga Machine Language Programming Guide" by Dan Wolf and Doug Leavitt and is presented here courtesy of COMPUTE! Books. WordHunt - This program by Todd Petit will create Wordhunt puzzles on your printer based on wordlist files you can customize. Several wordlists are included in the WordHunt drawer. In order to run this game, the file arp.library (in the libs directory of this disk) must be in your LIBS: directory. If you have room on your workbench disk (about 17k) and the disk is not write-protected, you can install arp.library by double-clicking the InstallARPLib icon in the WordHunt Drawer. After arp.library is installed, you will have to reboot so that your Amiga knows about the new library. CalcDP - In the Programming directory, CalcDP is the assembled executable code from Dr. Dan Wolf's double precision math assembly language programming article. It will do basic calculations using the Amiga floating point math routines, and is small enough to fit on a nearly full Workbench disk. As a twist, this program returns its result in hex in IEEE format. It must be run from the CLI. The source is in CalcDP.asm. A brief note called ASMRead.me is also included. Double-clicking on the ReadAsmSource icon will display the source file and notes. Sound - This little sound player by R. L. Stockton of Gramma Software is in the Sounds drawer. It will play sampled sounds (and other files). It works well from either the Workbench or the CLI. To listen to the sampled sounds in the Sounds drawer, either double-click the sample's icon, or use "extended selection" which means, click on the sound icons you want to play with the SHIFT key held down then double-click the Sound icon (with SHIFT still down.) Detailed instructions can be read by double-clicking the Sound.Doc icon. Filter - Filter by Jamie Mueller processes IFF sound files. It can be used like a graphic equalizer, to change the composition of a sound by altering the amounts of bass, treble and mid-range frequencies. The Fourier transform calculations which this program uses are quite time consuming, so long sound files will take a long time to load and be filtered. Complete instructions are displayed when you double-click the Filter.Doc icon. SuperView - Version 2.1 of David Grothe's outstanding IFF picture display program is in the Art drawer. Instructions are in SuperView.doc. This is the most powerful 'show' utility we have seen. It is used to display any pictures on this disk. It can also be used as a slide show, getting its directions from a file or showing all the pictures in a specified directory. The root directory of this disk has this text file and a script file and icon called PrintAllDocs. This script will allow you to print out all the instructions on this disk, or let you selectively print the ones you want. If you don't have a printer hooked to your Amiga, this will probably not work at all... The Art drawer contains the IFF picture "Gorilla" along with SuperView and its instructions. Double-click on the Gorilla icon to show the picture. Press the space-bar to toggle the color cycling on and off and click the right mouse button to exit. Any resemblence of this picture to members of the AMIGA Plus staff is coincidental (we hope). The Sounds drawer contains a small collection of sampled sounds along with Sound, a sound player, and Filter which processes these sound files. In addition to the docs for these two programs (Sound.Doc and Filter.Doc), there is a script file with icon called CallMe which rings the bells 3 minutes after you double-click it. This script contains comments to make it easy to customize with different delays and sounds, and to help you create your own scripts. The Fonts drawer contains two fonts ATali and ACairo. Along with these symbol fonts are two IFF picture files ATali.pic and ACairo.pic which show all the characters in the respective font and the keys to which they are assigned. Double-click on the picture icons to view them with SuperView. Also in this drawer are two useful scripts with icons: AssignFONTSHere and CopyToFONTS. AssignFONTSHere will assign the FONTS: directory, where most programs look for fonts, to the directory named fonts on whichever disk the icon is on. If you double-click its icon, AssignFONTSHere will assign FONTS: to the fonts drawer on the AMIGA Plus Disk. Now if you run Notepad or DPaint or some other program which uses fonts, it will look for the fonts on this disk. To restore the FONTS: assignment to fonts on your boot disk, copy the AssignFONTSHere icon over to your boot disk and double-click it. The other script, CopyToFONTS, will copy the two fonts on this disk to the FONTS: directory. This will usually be on your boot disk, so make sure there is room (about 12k) and the disk is not write-protected. This script will be most useful for people who have FONTS: assigned to their hard disks. One particularly silly thing to do would be to use AssignFONTSHere then CopyToFONTS to copy the fonts onto themselves. The WordHunt Drawer contains WordHunt, the wordhunt puzzle maker by Todd Petit, instructions (double-click WordHunt.Doc), and a couple of sample wordlists (which end with .wordlist) to get you started. Also in this drawer is the script InstallARPLib which copies arp.library from the libs drawer on this disk to your LIBS: directory. The Fractals drawer contains 11 fractal drawing programs: six by Eric Giguere (Chaos, GBMan, Henon, Julia, Mandelbrot and Mandelbrot32),two by Arnold Cachelin (StrangeTraj and AttractorTime) and three by Daniel Wolf Ph.D. (Dragon, Hilbert and PolyFrac). All of these programs will run from the workbench by double-clicking their icons and can ba closed by clicking the close gadget in the upper left corner of the drawing window. Some of these programs can accept command line arguments when run from the CLI. Further instructions and details can be read by double-clicking the Fractals.Doc icon. The Programming drawer contains sound.c, the C language source code for the sound player in the Sounds drawer. You will also find the assembler file CalcDP.asm along with some notes and the executable. See Dan Wolf's Assembly language article for details on CalcDP. In the FractalSource subdirectory of the Programming drawer are the C language source files for Eric Giguere's fractal demos along with a makefile and a script to compile and link the programs for those who don't own the make utility. This subdirectory also hold the two assembly language fractal demos by Dan Wolf. These programs offer good examples of recursion in assembler. The C and Assembler source code files and any notes will be displayed if you double-click the ReadCSource or ReadAsmSource icons respectively. The Libs Drawer contains arp.library, the ARP (Amiga Replacement Project) shared function library. This file cannot do anything by itself, but it has a wonderful file requester that WordHunt uses. More info on this is in the file Libs.Doc in the Libs drawer. The "Chest of Drawers" icons were created by icon artist Gary Roseman. Use them for your own disks! The chest can be made higher by copying the middle two drawer icons and inserting them appropriately. The entire disk has been processed with Blitz A Disk (B.A.D.) from M.V. Micro (distributed by Centaur Software Inc.) in order to speed up disk access. The format is the same as all AmigaDOS disks, but the files have been reorganized so that the icons are found and displayed very quickly. P.S.  Subscribe to AMIGA Plus magazine with disk!!! 6 Issues for only $39.95 Call 1-800-234-7001 NOW!