Intel 9800758-02 manual Print Using, String Fields

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Commands and Statements

BASIC-SO

PRINT

The PRINT statement returns the value of expressions or the text of strings to the console, or to any ISIS-II file. Literal strings must be enclosed in quotation marks ("); variables and expressions need no quotation marks.

You can print data to any ISIS-II file by specifying a file number. If a comma (,) is inserted following an expression to be printed, the next printing starts at the begin- ning of the next 14-column zone. If a semicolon (;) is inserted, the next printing starts at the next column. If no punctuation is used at the end of the PRINT state- ment, the next printing starts at the beginning of the next line. PRINT by itself prints one blank line. A "?" entered after a line number means PRINT.

PRINT [II filenumber,][[ expression], I;]...

10 INPUT "A string"; X$

20PRINT "YOUR STRING IS ";X$

30END

RUN

?A string

YOUR STRING IS A string

Ok

PRINT USING

The PRINT USING statement specifies particular formats to print strings or numbers. The format string may include more than one field, and may also include any literal character that is not a PRINT USING formatting character. The syntactic format of PRINT USING is:

PRINT [# file number,] USING format string; expression [, expression] ...

in which the format string specifies spacing and additional characters (such as asterisks and dollar signs) when used with numeric fields, and which specify portions of the given string when used with string fields. Each expression is printed with the same format. The optional file number specifies the number of an open file. See Chapter 5 for details of sequential disk file 110.

String Fields

There are two formatting choices when using PRINT USING with string fields:

"!" specifies that the first character of each specified string is printed.

"\ n spaces \" specifies that the first 2+N characters are printed. If the backslashes are used without spaces, two characters are printed.

If the string field has more characters than the format string, the balance are ignored; if there are fewer characters than specified, spaces are printed to fill out the field. Here are examples of the string field formats:

10X$="ONE"

20Y$="TWO"

30PRINT USING "!"; X$; Y$

40PRINT USING" \ \"; X$; Y$

RUN OT

ONE TWO Ok

6-16

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Contents BASIC-SO Reference Manual A108/0979/7500 FL Preface Page Contents Illustrations Chapter Introduction to BASIC-80 Invoking BASIC-80Examples Introduction to BASIC-80Basic filename MEMTOPaddress FilenameListing the Directory of a Disk Renaming a FileChanging File Attributes Deleting a FileYou can now run, list, or edit the program Save LP ,ACommands StatementsBASIC-80 Commands Contd BASIC-80 StatementsBASIC-80 Statements Contd BASIC-80 FunctionsBASIC-80 Functions Contd Representing Data FunctionsConstants Integer ConstantsDecimal Integer Constants Hexadecimal Integer ConstantsDouble-Precision Floating-Point Constants Octal Integer ConstantsSingle-Precision Floating-Point Constants String Constants String VariablesThis is a string constant $ = Enter next data stringL4! = Csng l4 YI,1String Arrays Arithmetic Operators BASIC-SO Operators in Order of Precedence ContdLogical Operators String OperatorNumeric Expressions String ExpressionsEntering and Editing Programs 30 A=8*52 30 A=830 A=8*52 30 A=8*37 30 A--=8xx*522537 Control-R a = 8*37Subcommand Command 3D press 3, then D resultsInteger D If AB thenIf AB then 120 Else Null SET Syntax of the X subcommand is At this point, the other editing subcommands may be usedPrint Undefined SET The E subcommand is entered Integer C character characterMove the cursor to PRINT. Enter 2C RE L Print Undefined SET. Enter a LOverflow, Underflow, and Divide-by-Zero BASIC-80 Error MessagesSyntax Error Messages Error Trapping Trace Facility Error Simulation Error HandlingRestarting Program Execution If line 40 is replaced withOpening a Sequential File Open 1,#1,F1DATESRefer to for further details of Print Using Writing to a Sequential FileReading from a Sequential File If executed four times, it would read all eight valuesClosing a Sequential File Value of R$ would beField #3, 20 AS N$ BuffersDefining a Random 1/0 Field-FIELD Disk File Input/Output Field #3, 20 AS N$, 9 AS SS$Opening and Closing a Random Disk File Reading from a Random 1/0 FileAny of the parameters can be variables To read the next recordWriting to a Random 1/0 File IntegerSingle-precision value Double-precision valueMKI$ Attrib Fdrive numberfilename, W1 Attrib Fdrive numberfilename, WOAuto first lineJ, increment Clear expression,addressCommands and Statements CloseDEF FNX Rules for function name are the same as for variable nameDefsng Defdbl Defstr Defint DIM DeleteError DIREdit ENDError expression ExitField FOR-NEXT-STEPGET GosubFor variable=expression to expression Step expression GET I file number ,record numberGoto IF-THEN-ELSEInput Kill LETLine Input ListLSET, Rset LoadMerge NEWNext 9 16Open On ... GosubOn ... Goto Poke Option BaseOUT String Fields Print UsingPrint Numeric fields If X$=SEVEN and Y$=EIGHT, the results of line 40 would bePrun PUTRandomize ReadREM Resume ReturnSave RUN line numberlstring expression ,FLine number RUN filename 60 ENDTRON, Troff ? 5,8,2Wait WidthABS ATNFunctions CHR$Cint Csng CVI CVS10 A# = 1.00/3.00 AO/o =Dskf EOFFIX Ok·Inputs HexsINP LEFT$ INTInstr LEN LOCLOF LOGOCT$ MID$MKI$ MKS$ MKD$ Rights Peek expressionPOS integer RIGHT$ string,integerSGN SINSpaces 10 a =1SPC SPC integerIf A$ = 2 then Print Correct Else Goto SQRexpressionTAN expression STR$ expressionTAB expression Here is an example of how the USRn statement is used 60 AO/o =Appendix a BASIC-SO Error Codes Table A-I. BASIC-80 Error CodesTable A-I. BASIC-SO Error Codes Contd Appendix B BASIC-SO Reserved Words Page To halt program execution and return to command LevelTo tab across the line To resume program execution after it is stopped byPage Table D-l. Ascii Code List Appendix D Ascii CodesTable D-2. Ascii Code Definition BELAppendixe Calling Subroutines Figure B-1. Internal Representation of Numbers and Strings Some Real Examples RESULT=USR%1VARPTRA, VARPTRB, VARPTRC» PRINTA+B+C= ResultFigure E-2 /8085 Assembly Language Program Figure E-3. PL/M-80 Program Appendix F RMX/SO BASIC-SO Initializing the Predefined RMX/SO BASIC-SO Configuration ISIS-II BASIC-SOTable F-l. Sample Configuration Jumper Wiring OOOOH-OFFFHGenerating Boot-Loaded and PROM-Based Versions BASIC-80 Source FilesBASIC-80 Object Files BASIC-80 Executable FilesGenerating a Boot-Loaded RMX/80 BASIC-80 That are not boot loaded This option is used to allocate memory. It is 1 if the bootSetting baud rates, refer to the RMX/SO Users Guide This option enables your user-written I/O drivers if youISBC 80/20-4 Generating a PROM-Based RMX/80 BASIC-80 Prom F1 RMX820.L1BSTART, & FOBASCM.OBJ,& FORMXBAS.LlB F1 DFSDIR. L1BDIRECTORY ,RENAM E,& F1 MTI810.L1B Configuring DFS on an iSBC 80/10 Adding BASIC-SO to an Existing RMX/SO ConfigurationConfiguration Requirements ISBC SO/10 System ClockPublic Variables Adding User-Written I/O Drivers to RMX/SO BASIC-SO Open 0,#1, L1LlSTFigure F-S. Sample User-Written 1/0 Driver Routine Altering BASIC-80 Workspace Burning a BASIC-80 Program Into PromBaprom F1HEATER.BAS Page Index Ase BASIC-80 RIGHT$,7-1O Request for Readerscomments 111111