GWBASIC User's Manual

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GW-BASIC User's Guide 1.4 Organization of This Manual The GW-BASIC User's Guide is divided into six chapters, nine appendixes, and a glossary: Chapter 1, "Welcome to GW-BASIC," describes this manual. Chapter 2, "Getting Started with GW-BASIC," is an elementary guideline on how to begin programming. Chapter 3, "Reviewing and Practicing GW-BASIC," lets you use the principles of GW-BASIC explained in Chapter 2. Chapter 4, "The GW-BASIC Screen Editor," discusses editing commands that can be used when inputting or modifying a GW-BASIC program. It also explains the unique properties of the ten redefinable function keys and of other keys and keystroke combinations. Chapter 5, "Creating and Using Files," tells you how to create files and to use the diskette input/ output (I/O) procedures. Chapter 6, "Constants, Variables, Expressions, and Operators," defines the elements of GW- BASIC and describes how you will use them. Appendix A, "Error Codes and Messages," is a summary of all the error codes and error messages that you might encounter while using GW-BASIC. Appendix B, "Mathematical Functions," describes how to calculate certain mathematical functions not intrinsic to GW-BASIC. Appendix C, "ASCII Character Codes," lists the ASCII character codes recognized by GW- BASIC. Appendix D, "Assembly Language (Machine Code) Subroutines," shows how to include assembly language subroutines with GW-BASIC. Appendix E, "Converting BASIC Programs to GW-BASIC," provides pointers on converting programs written in BASIC to GW-BASIC. Appendix F, "Communications," describes the GW-BASIC statements required to support RS- 232 asynchronous communications with other computers and peripheral devices. Appendix G, "Hexadecimal Equivalents," lists decimal and binary equivalents to hexadecimal values. Appendix H, "Key Scan Codes," lists and illustrates the key scan code values used in GW- BASIC. Appendix I, "Characters Recognized by GW-BASIC," describes the GW-BASIC character set. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/Chapter 1.html (2 of 3)28/03/2004 21.28.56
GW-BASIC User's Guide The Glossary defines words and phrases commonly used in GW-BASIC and data processing. 1.5 Bibliography This manual is a guide to the use of the GW-BASIC Interpreter: it makes no attempt to teach the BASIC programming language. The following texts may be useful for those who wish to learn BASIC programming: Albrecht, Robert L., LeRoy Finkel, and Jerry Brown. BASIC. 2d ed. New York: Wiley Interscience, 1978. Coan, James. Basic BASIC. Rochelle Park, N.J.: Hayden Book Company, 1978. Dwyer, Thomas A. and Margot Critchfield. BASIC and the Personal Computer. Reading, Mass.: Addison-Wesley Publishing Co., 1978. Ettlin, Walter A. and Gregory Solberg. The MBASIC Handbook. Berkeley, Calif.: Osborne/ McGraw Hill, 1983. Knecht, Ken. Microsoft BASIC. Portland, Oreg.: Dilithium Press, 1982. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/Chapter 1.html (3 of 3)28/03/2004 21.28.56
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GW-BASIC User's Guide LET Statement
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GW-BASIC User's Guide The program i
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GW-BASIC User's Guide Appendix A Er
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GW-BASIC User's Guide Appendix C AS
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GW-BASIC User's Guide Appendix D As
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GW-BASIC User's Guide DEF USR State
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GW-BASIC User's Guide USR Function
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GW-BASIC User's Guide E.3 Multiple
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GW-BASIC User's Guide 8 8 18 24 90
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GW-BASIC User's Guide _ Underscore.
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GW-BASIC User's Guide Data represen
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GW-BASIC User's Guide binary system
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GW-BASIC User's Guide computers or
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GW-BASIC User's Guide double-precis
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GW-BASIC User's Guide graphics A ha
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GW-BASIC User's Guide precisely ref
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GW-BASIC User's Guide An extra-bit
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GW-BASIC User's Guide single-densit
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GW-BASIC User's Guide ABS Function
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GW-BASIC User's Guide CHR$ Function
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GW-BASIC User's Guide AUTO Command
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GW-BASIC User's Guide BLOAD Command
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GW-BASIC User's Guide BSAVE Command
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GW-BASIC User's Guide Note ● Valu
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GW-BASIC User's Guide CDBL Function
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GW-BASIC User's Guide INT Function
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GW-BASIC User's Guide CHAIN Stateme
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GW-BASIC User's Guide MERGE Command
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GW-BASIC User's Guide CIRCLE Statem
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GW-BASIC User's Guide COLOR Stateme
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GW-BASIC User's Guide For more info
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GW-BASIC User's Guide EGA with Enha
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GW-BASIC User's Guide SCREEN 10 ●
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GW-BASIC User's Guide For various s
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GW-BASIC User's Guide PALETTE, PALE
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GW-BASIC User's Guide Enhanced d EG
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GW-BASIC User's Guide N Move, but r
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GW-BASIC User's Guide LINE Statemen
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GW-BASIC User's Guide LINE (0,0)-(1
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GW-BASIC User's Guide tile_length i
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GW-BASIC User's Guide PRESET and PS
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GW-BASIC User's Guide CLEAR Command
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GW-BASIC User's Guide CLOSE Stateme
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GW-BASIC User's Guide COM(n) Statem
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GW-BASIC User's Guide CONT Command
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GW-BASIC User's Guide CSRLIN Variab
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GW-BASIC User's Guide CVI, CVS, CVD
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GW-BASIC User's Guide DATA Statemen
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GW-BASIC User's Guide RESTORE State
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GW-BASIC User's Guide the value of
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GW-BASIC User's Guide DEFINT/SNG/DB
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GW-BASIC User's Guide DEF and SEG m
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GW-BASIC User's Guide POKE Statemen
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GW-BASIC User's Guide EDIT Command
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GW-BASIC User's Guide ENVIRON State
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GW-BASIC User's Guide ENVIRON$ Func
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GW-BASIC User's Guide SHELL Stateme
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GW-BASIC User's Guide EOF Function
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GW-BASIC User's Guide ERDEV and ERD
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GW-BASIC User's Guide ERROR Stateme
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GW-BASIC User's Guide EXP Function
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GW-BASIC User's Guide FIELD Stateme
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GW-BASIC User's Guide GET Statement
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GW-BASIC User's Guide FOR ... NEXT
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GW-BASIC User's Guide FRE Function
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GW-BASIC User's Guide The number of
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GW-BASIC User's Guide GOTO Statemen
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GW-BASIC User's Guide OCT$ Function
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GW-BASIC User's Guide Testing Equal
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GW-BASIC User's Guide 1070 TIMEOUT%
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GW-BASIC User's Guide INPUT Stateme
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GW-BASIC User's Guide PRINT Stateme
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GW-BASIC User's Guide STRING$ Funct
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GW-BASIC User's Guide PRINT USING S
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GW-BASIC User's Guide ** A double a
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GW-BASIC User's Guide WIDTH Stateme
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GW-BASIC User's Guide INPUT# Statem
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GW-BASIC User's Guide 100 PRINT "TY
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GW-BASIC User's Guide IOCTL Stateme
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GW-BASIC User's Guide KILL Command
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GW-BASIC User's Guide MID$ Function
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GW-BASIC User's Guide LEN FUNCTION
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GW-BASIC User's Guide LINE INPUT# S
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GW-BASIC User's Guide LLIST Command
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GW-BASIC User's Guide LOC Function
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GW-BASIC User's Guide Makes the cur
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GW-BASIC User's Guide It is expecte
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GW-BASIC User's Guide LOG Function
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GW-BASIC User's Guide MID$ Statemen
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GW-BASIC User's Guide NAME Command
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GW-BASIC User's Guide ON ERROR GOTO
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GW-BASIC User's Guide ON ... GOSUB
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GW-BASIC User's Guide RESET Command
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GW-BASIC User's Guide Examples: The
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GW-BASIC User's Guide PCOPY Command
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GW-BASIC User's Guide PMAP Function
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GW-BASIC User's Guide If the string
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GW-BASIC User's Guide PUT Statement
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GW-BASIC User's Guide RANDOMIZE Sta
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GW-BASIC User's Guide RND Function
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GW-BASIC User's Guide RESUME Statem
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GW-BASIC User's Guide RMDIR Command
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GW-BASIC User's Guide SAVE Command
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GW-BASIC User's Guide SGN Function
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GW-BASIC User's Guide SOUND Stateme
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GW-BASIC User's Guide SPACE$ Functi
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GW-BASIC User's Guide SQR Function
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GW-BASIC User's Guide STOP Statemen
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GW-BASIC User's Guide VAL Function
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GW-BASIC User's Guide STRIG(n) Stat
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GW-BASIC User's Guide SYSTEM Comman
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GW-BASIC User's Guide TAN Function
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GW-BASIC User's Guide 08:00:05 The
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GW-BASIC User's Guide TRON/TROFF Co
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GW-BASIC User's Guide 0 1 Mode The
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GW-BASIC User's Guide VARPTR$ Funct
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GW-BASIC User's Guide The following
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GW-BASIC User's Guide WAIT Statemen
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GW-BASIC User's Guide WINDOW Statem
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GW-BASIC User's Guide WRITE Stateme
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GWBASIC User's Manual

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