GWBASIC User's Manual

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GW-BASIC <strong>User's</strong> Guide PEEK Function Purpose: To read from a specified memory location. Syntax: PEEK(a) Comments: Returns the byte (decimal integer within the range of 0 to 255) read from the specified memory location a. a must be within the range of 0 to 65535. The DEF SEG statement last executed determines the absolute address that will be peeked into. PEEK is the complementary function to the POKE statement. Examples: 10 A=PEEK(&H5A00) The value of the byte, stored in user-assigned hex offset memory location 5A00 (23040 decimal), will be stored in the variable A. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/PEEK.html28/03/2004 21.29.22
GW-BASIC <strong>User's</strong> Guide POKE Statement Purpose: To write (poke) a byte of data into a memory location. Syntax: POKE a,b Comments: a and b are integer expressions. The integer expression a is the offset address of the memory location to be poked. The DEF SEG statement last executed determines the address. GW-BASIC does not check any offsets that are specified. The integer expression b is the data to be poked. b must be within the range of 0 to 255. a must be within the range of 0 to 65535. The complementary function to POKE is PEEK. The argument to PEEK is an address from which a byte is to be read. POKE and PEEK are useful for efficient data storage, loading assembly language subroutines, and for passing arguments and results to and from assembly language subroutines. Examples: 20 POKE &H5A00, &HFF Places the decimal value 255 (&HFF) into the hex offset location (23040 decimal) See PEEK function example. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/POKE.html28/03/2004 21.29.22
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GWBASIC User's Manual User's Guide
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GWBASIC User's Manual FILES Command
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GWBASIC User's Manual PSET Statemen
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GW-BASIC User's Guide Chapter 1 Wel
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GW-BASIC User's Guide The Glossary
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GW-BASIC User's Guide 2.2.2 Indirec
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GW-BASIC User's Guide Sample GW-BAS
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GW-BASIC User's Guide CTRL-G Causes
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GW-BASIC User's Guide BASIC User's
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GW-BASIC User's Guide Note ↵ (arr
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GW-BASIC User's Guide Appendix H Ke
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GW-BASIC User's Guide KEY(n) n is a
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GW-BASIC User's Guide STRIG Trappin
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GW-BASIC User's Guide KEY(n) Statem
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GW-BASIC User's Guide LOC(x) Return
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GW-BASIC User's Guide 15 KEY OFF:CL
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GW-BASIC User's Guide Chapter 3 Rev
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GW-BASIC User's Guide To save a fil
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GW-BASIC User's Guide Hexadecimal H
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GW-BASIC User's Guide The GW-BASIC
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GW-BASIC User's Guide Modulus arith
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GW-BASIC User's Guide EQV X Y X EQV
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GW-BASIC User's Guide RUN FILENAME
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GW-BASIC User's Guide OPTION BASE S
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GW-BASIC User's Guide LET Statement
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GW-BASIC User's Guide . . 400 R=1:
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GW-BASIC User's Guide ● Sequentia
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GW-BASIC User's Guide The program i
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GW-BASIC User's Guide PUT #1, CODE%
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GW-BASIC User's Guide number. Lines
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GW-BASIC User's Guide Appendix A Er
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GW-BASIC User's Guide 18 Undefined
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GW-BASIC User's Guide 59-60Unprinta
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GW-BASIC User's Guide 75 Path/File
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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 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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Page 165 and 166: GW-BASIC User's Guide CLOSE Stateme
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Page 169 and 170: GW-BASIC User's Guide CONT Command
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Page 195 and 196: GW-BASIC User's Guide EOF Function
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Page 201 and 202: GW-BASIC User's Guide EXP Function
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Page 205 and 206: GW-BASIC User's Guide GET Statement
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Page 221 and 222: GW-BASIC User's Guide INPUT Stateme
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Page 231 and 232: GW-BASIC User's Guide WIDTH Stateme
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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 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 PUT Statement
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GW-BASIC User's Guide RND Function
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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 VAL Function
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GW-BASIC User's Guide TAN Function
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GW-BASIC User's Guide WAIT Statemen
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GW-BASIC User's Guide WRITE Stateme
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GWBASIC User's Manual

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