Intel 9800758-02 manual Prom

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BASIC-SO

RMX/SO BASIC-SO

The configuration explained below does not use DFS. Accordingly, the CONTR, DFS, and NFILES options shown in the BQOPS.ASM module are set to 0, and there are no references to the DFS libraries in the GBASIC.CSD module shown.

With this configuration, memory must be organized as follows (see the iSBC 80/20 Hardware Reference Manual):

PROM:	0-25K
iSBC 80/20 onboard RAM: 30K		- 32K
iSBC 016 RAM:	32K	- 48K

This configuration uses an iSBC 80/20. It's more difficult to configure an iSBC 80/10 for a PROM-based BASIC-80, because of memory allocation, and we'll look at how to do this after explaining the iSBC 80/20 configuration.

There are three steps to generating a PROM-based BASIC-80:

1.You must modify or create a version of BQOPS.ASM that supports the options you need for your configuration. Figure 4 shows the contents of a BQOPS.ASM PROM configuration using an iSBC 80/20. Examine each option available; if any need to be changed, this file (as well as any other ISIS-II file) can be edited with the ISIS-II Text Editor or CREDIT. Refer to the ISIS-II User's Guide for further information about using the Text Editor.

CPU	SET	20	;MODEL OF CPU
BOOTED	SET	o	;ONE IF BOOT VERSION, ELSE 0
TERMH	SET	o	;1 FOR FULL TH, 0 FOR MINI
RATE	SET	28	;BAUD RATE FACTOR
CONTR	SET	o	;CONTROLLER NUMBER
DFS	SET	o	;NUMBER OF DFS FILES OPEN AT ONCE
UIO	SET	o ;11F USER I/O DRIVERS ELSE 0
NFILES	SET	o	;TOTAL FILES
HIRAM	SET	OBFFFH	;HIGHEST RAM LOCATION
BOTMEM	SET	OH	;BOTTOM OF BOOT LOADER RAM

Figure F-4. BOQOPS.ASM Module for PROM..Based BASIC-SO

2.You must also assemble BASCM.ASM, the BASIC-80 configuration module, and BQMEM.ASM, the memory allocation module. If these modules need to be changed to fit your configuration, you can edit them with the ISIS-II Text Editor.

3.You must then use the appropriate GBASIC.CSD file with SUBMIT, which will LINK and LOCATE the proper modules and their library references. Figure F-5 lists a GBASIC.CSD module that you could use with the PROM-based con- figuration specfied in figure F-4.

F-9

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Contents BASIC-SO Reference Manual A108/0979/7500 FL Preface Page Contents Illustrations Invoking BASIC-80 Chapter Introduction to BASIC-80Introduction to BASIC-80 ExamplesBasic filename MEMTOPaddress FilenameRenaming a File Listing the Directory of a DiskChanging File Attributes Deleting a FileSave LP ,A You can now run, list, or edit the programStatements CommandsBASIC-80 Statements BASIC-80 Commands ContdBASIC-80 Functions BASIC-80 Statements ContdBASIC-80 Functions Contd Functions Representing DataInteger Constants ConstantsDecimal Integer Constants Hexadecimal Integer ConstantsDouble-Precision Floating-Point Constants Octal Integer ConstantsSingle-Precision Floating-Point Constants String Variables String ConstantsThis is a string constant $ = Enter next data stringYI,1 L4! = Csng l4String Arrays BASIC-SO Operators in Order of Precedence Contd Arithmetic OperatorsString Operator Logical OperatorsNumeric Expressions String ExpressionsEntering and Editing Programs 30 A=8 30 A=8*5230 A=8*52 30 A=8*37 30 A--=8xx*522537 Control-R a = 8*37Command 3D press 3, then D results SubcommandInteger D If AB thenIf AB then 120 Else Null SET At this point, the other editing subcommands may be used Syntax of the X subcommand isInteger C character character Print Undefined SET The E subcommand is enteredMove 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 Handling Error SimulationRestarting Program Execution If line 40 is replaced withOpen 1,#1,F1DATES Opening a Sequential FileWriting to a Sequential File Refer to for further details of Print UsingReading from a Sequential File If executed four times, it would read all eight valuesValue of R$ would be Closing a Sequential FileField #3, 20 AS N$ BuffersDefining a Random 1/0 Field-FIELD Field #3, 20 AS N$, 9 AS SS$ Disk File Input/OutputReading from a Random 1/0 File Opening and Closing a Random Disk FileAny of the parameters can be variables To read the next recordInteger Writing to a Random 1/0 FileSingle-precision value Double-precision valueMKI$ Attrib Fdrive numberfilename, WO Attrib Fdrive numberfilename, W1Auto first lineJ, increment Clear expression,addressClose Commands and StatementsRules for function name are the same as for variable name DEF FNXDefsng Defdbl Defstr Defint Delete DIMDIR ErrorEdit ENDExit Error expressionField FOR-NEXT-STEPGosub GETFor variable=expression to expression Step expression GET I file number ,record numberGoto IF-THEN-ELSEInput LET KillLine Input ListLoad LSET, RsetNEW Merge9 16 NextOpen On ... GosubOn ... Goto Poke Option BaseOUT String Fields Print UsingPrint If X$=SEVEN and Y$=EIGHT, the results of line 40 would be Numeric fieldsPUT PrunRead RandomizeREM Return ResumeRUN line numberlstring expression ,F SaveLine number RUN filename 60 END? 5,8,2 TRON, TroffWidth WaitATN ABSFunctions CHR$Cint CVI CVS Csng10 A# = 1.00/3.00 AO/o =EOF DskfOk· FIXInputs HexsINP LEFT$ INTInstr LOC LENLOF LOGOCT$ MID$MKI$ MKS$ MKD$ Peek expression RightsPOS integer RIGHT$ string,integerSIN SGNSpaces 10 a =1SPC integer SPCIf A$ = 2 then Print Correct Else Goto SQRexpressionTAN expression STR$ expressionTAB expression 60 AO/o = Here is an example of how the USRn statement is usedTable A-I. BASIC-80 Error Codes Appendix a BASIC-SO Error CodesTable A-I. BASIC-SO Error Codes Contd Appendix B BASIC-SO Reserved Words Page Level To halt program execution and return to commandTo tab across the line To resume program execution after it is stopped byPage Appendix D Ascii Codes Table D-l. Ascii Code ListBEL Table D-2. Ascii Code DefinitionAppendixe Calling Subroutines Figure B-1. Internal Representation of Numbers and Strings RESULT=USR%1VARPTRA, VARPTRB, VARPTRC» PRINTA+B+C= Result Some Real ExamplesFigure E-2 /8085 Assembly Language Program Figure E-3. PL/M-80 Program Appendix F RMX/SO BASIC-SO ISIS-II BASIC-SO Initializing the Predefined RMX/SO BASIC-SO ConfigurationOOOOH-OFFFH Table F-l. Sample Configuration Jumper WiringBASIC-80 Source Files Generating Boot-Loaded and PROM-Based VersionsBASIC-80 Object Files BASIC-80 Executable FilesGenerating a Boot-Loaded RMX/80 BASIC-80 This option is used to allocate memory. It is 1 if the boot That are not boot loadedSetting 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 Adding BASIC-SO to an Existing RMX/SO Configuration Configuring DFS on an iSBC 80/10Configuration Requirements ISBC SO/10 System ClockPublic Variables Open 0,#1, L1LlST Adding User-Written I/O Drivers to RMX/SO BASIC-SOFigure F-S. Sample User-Written 1/0 Driver Routine Burning a BASIC-80 Program Into Prom Altering BASIC-80 WorkspaceBaprom F1HEATER.BAS Page Index Ase BASIC-80 RIGHT$,7-1O Request for Readerscomments 111111