Wait, Width | Intel 9800758-02 guide

Commands and Statements

BASIC-80

TRON

TROFF

10 INPUT A,B,C

20PRINT(A+B+C)/3

30END

TRON OK RUN [10]42, 48, 45 [20]45 [30]

OK TROFF OK RUN 30, 18,12 20

Ok

WAIT

The WAIT statement instructs BASIC-80 to monitor incoming bytes from a specified port. These bytes are tested with a mask byte, which is an integer expres- sion in the range 0 to 255. The resulting bits are compared with the corresponding bits of the comparison byte, also an integer expression in the range or 0 to 255. If the

Icomparison byte is not specified, the default value is O. Execution of program text is halted until the two sets of bits differ. When the WAIT command is given, the port status is exclusive ORed with the comparison byte and the result is ANDed with the mask byte. Execution halts until a non-zero value is obtained.

WAIT port number, mask byte,[comparison byte]

WIDTH

The WIDTH command adjusts the width of the lines printed at the console to the specified value, which is an expression in the range 15 to 255. The default value for WIDTH is 72.

WIDTH expression

10 A$ = "ACTION, OHIO; WEAVERTON, VERMONT; HOLLOWAY, CALIFORNIA"

20PRINT A$

30WIDTH 15

40PRINT A$

50WIDTH 72

60END

RUN

ACTION, OHIO; WEAVERTON, VERMONT; HOLLOWAY, CALIFORNIA ACTION, OHIO; WE

AVERTON, VERMON T; HOLLOWAY,CA LlFORNIA

Ok

6-24

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Intel 9800758-02 manual Wait, Width

Contents

BASIC-SO Reference Manual A108/0979/7500 FL Preface Page Contents Illustrations Chapter Introduction to BASIC-80 Invoking BASIC-80 Examples Introduction to BASIC-80Basic filename MEMTOPaddress Filename Listing the Directory of a Disk Renaming a FileChanging File Attributes Deleting a File You can now run, list, or edit the program Save LP ,A Commands Statements BASIC-80 Commands Contd BASIC-80 Statements BASIC-80 Statements Contd BASIC-80 Functions BASIC-80 Functions Contd Representing Data Functions Constants Integer ConstantsDecimal Integer Constants Hexadecimal Integer Constants Single-Precision Floating-Point Constants Octal Integer ConstantsDouble-Precision Floating-Point Constants String Constants String VariablesThis is a string constant $ = Enter next data string L4! = Csng l4 YI,1 String Arrays Arithmetic Operators BASIC-SO Operators in Order of Precedence Contd Logical Operators String OperatorNumeric Expressions String Expressions Entering 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*37 Subcommand Command 3D press 3, then D resultsInteger D If AB then If AB then 120 Else Null SET Syntax of the X subcommand is At this point, the other editing subcommands may be used Print Undefined SET The E subcommand is entered Integer C character characterMove the cursor to PRINT. Enter 2C RE L Print Undefined SET. Enter a L Syntax Error Messages BASIC-80 Error MessagesOverflow, Underflow, and Divide-by-Zero Error Trapping Trace Facility Error Simulation Error HandlingRestarting Program Execution If line 40 is replaced with Opening a Sequential File Open 1,#1,F1DATES Refer 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 values Closing a Sequential File Value of R$ would be Defining a Random 1/0 Field-FIELD BuffersField #3, 20 AS N$ 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 record Writing to a Random 1/0 File IntegerSingle-precision value Double-precision value MKI$ Attrib Fdrive numberfilename, W1 Attrib Fdrive numberfilename, WOAuto first lineJ, increment Clear expression,address Commands and Statements Close DEF FNX Rules for function name are the same as for variable name Defsng Defdbl Defstr Defint DIM Delete Error DIREdit END Error expression ExitField FOR-NEXT-STEP GET GosubFor variable=expression to expression Step expression GET I file number ,record number Input IF-THEN-ELSEGoto Kill LETLine Input List LSET, Rset Load Merge NEW Next 9 16 On ... Goto On ... GosubOpen OUT Option BasePoke Print Print UsingString Fields Numeric fields If X$=SEVEN and Y$=EIGHT, the results of line 40 would be Prun PUT Randomize Read REM Resume Return Save RUN line numberlstring expression ,FLine number RUN filename 60 END TRON, Troff ? 5,8,2 Wait Width ABS ATN Cint CHR$Functions Csng CVI CVS10 A# = 1.00/3.00 AO/o = Dskf EOF FIX Ok· INP HexsInputs Instr INTLEFT$ LEN LOCLOF LOG MKI$ MKS$ MKD$ MID$OCT$ Rights Peek expressionPOS integer RIGHT$ string,integer SGN SINSpaces 10 a =1 SPC SPC integerIf A$ = 2 then Print Correct Else Goto SQRexpression TAB expression STR$ expressionTAN 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 Codes Table 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 Codes Table D-2. Ascii Code Definition BEL Appendixe Calling Subroutines Figure B-1. Internal Representation of Numbers and Strings Some Real Examples RESULT=USR%1VARPTRA, VARPTRB, VARPTRC» PRINTA+B+C= Result Figure 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-SO Table F-l. Sample Configuration Jumper Wiring OOOOH-OFFFH Generating Boot-Loaded and PROM-Based Versions BASIC-80 Source FilesBASIC-80 Object Files BASIC-80 Executable Files Generating 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 you ISBC 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 Clock Public Variables Adding User-Written I/O Drivers to RMX/SO BASIC-SO Open 0,#1, L1LlST Figure F-S. Sample User-Written 1/0 Driver Routine Altering BASIC-80 Workspace Burning a BASIC-80 Program Into Prom Baprom F1HEATER.BAS Page Index Ase BASIC-80 RIGHT$,7-1O Request for Readerscomments 111111