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Atari Microsoft BASIC II Guide

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Atari Microsoft BASIC II Guide ATARI MICROSOFT BASIC II* ATARI ®Microsoft BASIC II puts functions, and expressions the power of the most advanced Detailed information on graphics BASIC language in an easy-to-use, modes, player-missile graphics, quick-loading 16K ROM (Read-Only and controllers Memory) cartridge. When you in­ Appendices that cover sample sert the cartridge in your ATARI programs, ATASC ll and alternate Home Computer and turn the com­ character sets, memory map, puter on, you' re ready to use a RS-232 information regarding the wide variety of Microsoft BASIC use of telephone communica­ programs. Add the Microsoft tions, an alphabetical listing of BASIC II Extension Diskette, and Microsoft BASIC II keywords, and you can tackle most any BASIC the error codes programming job-from the Conversion information to help simplest to the most complex. You you translate programs from can also convert Microsoft BASIC other Microsoft BASIC dialects programs written for other com­ and from ATARI BASIC into puters so that they run on your Microsoft BASIC II ATARI Home Computer. A whole In addition to the reference new world of creative program­ manual, there's also a handy ming awaits you! guide to Microsoft BASIC II: The THE SOLUTION A TARI Microsoft BASIC II Quick Reference Guide. Keep it by your ATARI Microsoft BASIC II can side while programming for quick solve the problems of your BASIC details on Microsoft BASIC II key­ programming universe quickly and words and their use, the ATASCll efficiently. As part of the package, character set, and explanations you get a thorough set of guide­ of errors. lines for its use, including a reference manual and a quick USING ACCESSORIES reference guide. You may use any number of The A TARI Microsoft BASIC II accessories with Microsoft BASIC Reference Manual includes: 11 , including printers, modems, up Complete loading instructions to four disk drives, and even digi­ Introduction to Microsoft BASIC II tizers and plotters. You ' ll find Explanations of Microsoft BASIC Microsoft BASIC II offers powerful 11 commands, commands to control your acces­ statements, sories quickly and conveniently. • © 1982 MICROSOFT All rights reserved To use the ATARI Microsoft BASIC If you have a disk drive, follow II cartridge, you must have a these steps to load Microsoft minimum system that consists of BASIC II with the extension an ATARI Home Computer with diskette: 16K of RAM (Random Access Make sure the power switch on Memory) and a standard TV set or the right side of your ATARI monitor. If you want to load and Home Computer console is turned save Microsoft BASIC II programs OFF. on cassette or diskette, you also Pull the release lever toward need an ATARI 410™ Program you to open the cartridge door. Recorder or an ATARI 81 o™ Disk Insert the Microsoft BASIC II cartridge in the cartridge slot Drive. The Microsoft BASIC II Ex­ (the left cartridge slot in your tension Diskette requires an ATARI ATARI 800 Home Computer) with 81 O Disk Drive and can only be the label facing you. Press down used with ATARI Disk Operating carefully and firmly. Close the System version 2.0S. cartridge door. LOADING MICROSOFT BASIC II Turn on disk drive 1. Wait until the red BUSY light goes off. If you do not have a disk drive, Insert the Microsoft BASIC II fol low these steps to load your Extension Diskette in the disk ATARI Microsoft BASIC II cartridge: drive. Make sure the label faces Turn on your ATARI Home up and to the right. Close the door Computer by pressing the of the disk drive. Turn the power power switch on the right side of switch on the right side of your the console to ON. computer console to ON. Pull the release lever toward you to open the cartridge door. (Whenever you do this, the com­ RUter automatically turns itself off.) Insert the ATARI Microsoft BASIC 11 cartridge in the car­ tridge slot (the left cartridge slot in your ATARI 800™ Home Computer) with the label facing you. Press the cartridge down carefully and firm­ ly. Close the cartridge door and Microsoft BASIC II then takes the computer turns on again. command and loads itself into your computer's memory automatically. Microsoft BASIC II then takes command and loads itself into your computer's memory. You'll know Microsoft BASIC II has Follow these steps to prepare loaded properly when you see the your working copies of the following information on your TV Microsoft BASIC 11 Extension screen: Diskette: With the extension diskette in your disk drive, Microsoft BASIC II loaded, and the prompt ( >) showing, type DOS and press RETURN . Your TV screen displays the DOS menu when DOS is fin­ ished loading , which takes about 30 seconds. WITHOUT DISK DRIVE Remove the extension diskette from the disk drive. Insert the diskette to be for­ matted in your disk drive. Here's what the computer asks and how you respond: COMPUTER : SELECT ITEM OR RETURN FOR MENU WITH DISK DRIVE YOU TYPE: I RETURN (If you do not see one of the above COMPUTER: WHICH DRIVE TO screens, turn off your computer FORMAT? and repeat the steps outlined in YOU TYPE : 1 RETURN " LOADING MICROSOFT BASIC II.") COMPUTER: TYPE " Y" TO FORMAT DISK 1 C OPYING THE MICROSOFT YOU TYPE: Y RETURN BASIC II EXTENSION DISKETTE The disk drive whirs and clicks Your Microsoft BASIC II Extension for less than a minute. You ' ll Diskette contains several files that know the formatting process is add convenient commands and finished when the screen displays features to the cartridge program " SELECT ITEM OR RETURN FOR of Microsoft BASIC II. To prevent MENU " again. the overlaying and destroying of After your diskette has been for­ these important files , the extension matted, you ' re ready to duplicate diskette comes in a "write­ the extension diskette. Press protected" jacket, which means RETURN for the DOS menu. Next, that you cannot save programs on insert the extension diskette in the original diskette. For this your disk drive. reason, you need to make a copy of the extension diskette before you begin to write your own programs. Follow these steps to make a The process of duplicating the working copy: extension diskette requires you to in the disk YOU TYPE : J RETURN switch the diskettes drive twice. When the computer COMPUTER : DUP DISK-SOURCE, DEST DRIVES? displays "SELECT ITEM OR " copying is YOU TYPE : 1, 1 RETURN RETURN FOR MENU, COMPUTER: INSERT SOURCE completed. DISK, TYPE RETURN You can check the directories YOU TYPE: RETURN on both the original and copy of COMPUTER: TYPE "Y" IF OK TO the extension diskette to see if all USE PROGRAM is well. Type A and press AREA RETURN . Then type RETURN CAUTION: A " Y" IN­ again. A list of files appears on VALIDATES MEM .SAV your TV screen. Then do the same (MEM .SAV is a file that saves part thing with the other diskette in the of Microsoft BAS IC II and your pro­ drive. (For further information, see gram whenever you go to the DOS An Introduction to the Disk menu. Invalidating MEM.SAV frees Operating System or the A TARI memory for faster duplication of Disk Operating System II diskettes. But you ' II have to reload Reference Manual.) MEM .SAV later to return to When you invalidate the Microsoft BASIC II-see Step 6.) MEM.SAV file, your access to the extension diskette features is YOU TYPE : Y RETURN suspended. In order to restore the COMPUTER: INSERT DESTINA- use of these features, you must TION DISK, TYPE reload Microsoft BASIC II . With RETURN your working copy of the extension (At this point, remove the exten­ diskette in the drive, turn the sion diskette and insert your for­ power switch on the right side of matted diskette.) your computer console to OFF and YOU TYPE : RETURN then turn it to ON again. COMPUTER : INSERT SOURCE Whenever " SELECT ITEM OR DISK, TYPE RETURN RETURN FOR MENU " appears (Remove the formatted diskette on your TV screen, you may leave and insert the extension diskette.) the DOS menu and return to YOU TYPE : RETURN Microsoft BASIC II by typing B (the COMPUTER: INSERT DESTINA- " RUN CARTRIDGE" selection on TION DISK, TYPE the DOS menu) and pressing RETURN RETURN . After Microsoft BASIC II (Remove the extension diskette is re-entered, the prompt ( >) will and insert the formatted diskette appear. Microsoft BASIC II is now again.) ready to receive your commands. YOU TYPE : RETURN COMPUTER: SELECT ITEM OR RETURN FOR MENU ATARI Microsoft BASIC II has the again on the computer. The pro­ power to take on large tasks, yet gram recorder now begins to it's easy to use. You can enter record the program onto the tape. commands directly (without typing When it's finished , the recorder a line number) and execute them automatically stops. immediately. Or you can start with Now the program resides both a line number and defer the execu­ in your computer's memory and on tion of commands until you type the tape . You could begin a new RUN . For example: program at this point, but it's YOU TYPE : PRINT " Welcome to always wise to start with a " clean Microsoft BASIC II ." slate." Type NEW to clear the RETURN computer's memory, then type COMPUTER: Welcome to Microsoft LIST (for listing lines) to see if line BASIC II. 10 is still there. Gone? Good. Now use a line number: LOADING A PROGRAM FROM YOU TYPE : 10 PRINT "Welcome CASSETTE to Microsoft BASIC II. " RETURN Now try loading the program back Microsoft BASIC II thinks you have into memory from the recorder.
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