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tops-20 [2020/03/25 20:58]
smj 		tops-20 [2020/07/13 10:36] (current)
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 ^ **Command** ^ **Description** ^ ^ **Command** ^ **Description** ^
 | CTRL-C     | Interrupts or quits a job (see reenter) | | CTRL-C     | Interrupts or quits a job (see reenter) |
 +| CTRL-F     | Try this to show command completion |
 | CTRL-T     | Prints job status                       | | CTRL-T     | Prints job status                       |
 +| <ESCAPE>   | Try this to show completion and //guide words// |
 | CONTINUE   | Continues a suspended or quit job       | | CONTINUE   | Continues a suspended or quit job       |
 | DIR        | DIRECTORY listing (see vdir)            | | DIR        | DIRECTORY listing (see vdir)            |
-| HELP       | The HELP system - Try '//HELP GAMES//'      |+| EMACS      | The EMACS editor - Try '//TEACH-EMACS//' | 
 +| FINGER     | Display who is logged in or details on a specific user | 
 +| HELP       | The HELP system - Try '//HELP GAMES//'  |
 | INFO       | INFORMATION about various subsystems    | | INFO       | INFORMATION about various subsystems    |
 +| KJOB       | KILL JOB - With out args will log you out |
 | LOGIN      | Login to a user account                 |  | LOGIN      | Login to a user account                 | 
 +| LOGOUT     | Logout from the system, see KJOB        |
 | REENTER    | re-enters a suspended or quit job       | | REENTER    | re-enters a suspended or quit job       |
 | SYSTAT     | System Status - Shows running jobs      | | SYSTAT     | System Status - Shows running jobs      |
-|+| VDIR       | Verbose Directory listing               | 
 + 
 +The directory structure is hierarchical and some notable directories also include logical names.  To see a complete list of defined LOGICAL-NAMES type //INFORMATION LOGICAL-NAMES ALL// or //inf log a//  
 + 
 +^ **Directory Name** ^ **Logical Name** ^ **Description** ^ 
 +| <DOCUMENTATION> | DOC: | Various Documentation | 
 +| <HELP> | HLP: | The HELP system | 
 +| <SUBSYS> | SYS: | Subsystem utilities and user programs | 
 +| <SYSTEM> | SYSTEM: | The SYSTEM directory - The Monitor and system configuration live here | 
 +| <UNSUPPORTED> | UNS: | 3rd party programs such as games | 
 + 
 +**PROGRAMMING EXAMPLES USING "COMPILE", "LOAD" and "SAVE" COMMANDS** 
 + 
 +TOPS-20 supports many programming languages using a standard COMPILE/LOAD/SAVE model.  TOPS-20 is very helpful using command recognition and DWIM (Do What I Mean) without having to completely type out everything.  Here are few simple examples to get started: 
 + 
 +**FORTRAN-77** 
 + 
 +//NOTE: This formatting is punched card style - The first 5 and 6th columns are special// 
 + 
 +      @copy TTY: test.for                             ;A simple way to enter in TEXT from the terminal 
 +       TTY: => TEST.FOR.1 
 +       
 +               PROGRAM TEST                           ;Declare the name of the program 
 +       
 +               WRITE (5, 10)                          ;OUTPUT to the terminal (UNIT 5) at line 10 
 +      10       FORMAT(' TESTING 1 2 3!')              ;FORMAT the text for OUTPUT 
 +       
 +               END                                    ;END the program 
 +      ^Z                                              ;CTRL-Z closes the file 
 +      @type test.for                                  ;TYPE the test.for file and verify 
 +               PROGRAM TEST 
 +       
 +               WRITE (5, 10) 
 +      10       FORMAT(' TESTING 1 2 3!') 
 +             
 +               END 
 +      @compile test                                   ;COMPILE the file TEST 
 +      FORTRAN: TEST                                   ;COMPILE determined TEST is a FORTRAN program 
 +      TEST                                        ;TEST is now written out as a .REL file 
 +      @load test                                      ;LOAD the file (or EXECUTE TEST to LOAD and RUN) 
 +      LINK: Loading 
 +      @save test                                      ;SAVE the loaded program to a .EXE file 
 +       TEST.EXE.1 Saved 
 +      @v test.* 
 +             
 +         LS:<SMJ.FORTRAN> 
 +       TEST.EXE.1;P775200         6 3072(36)    6-May-2020 15:42:13 SMJ        
 +         .FOR.1;P775200           1 71(7)       6-May-2020 15:41:09 SMJ        
 +         .REL.1;P775200           1 93(36)      6-May-2020 15:41:46 SMJ        
 +             
 +       Total of 8 pages in 3 files 
 +        
 +       @<smj.fortran>test                             ;Run the .EXE file 
 +       TESTING 1 2 3! 
 +       CPU time 0.09   Elapsed time 0.19 
 + 
 +For an excellent summary to get started with FORTRAN on TOPS-20, check out 
 +[[http://wiki.twenex.org/doku.php?id=tutorials:fortran]] 
 + 
 +**MACRO-20** 
 + 
 +MACRO is the assembler on TOPS-20.  Here is a simple example of a Hello World in MACRO 
 + 
 +       @COPY TTY:hello.mac                             ;A simple way to enter text into a file 
 +       title hello                                       
 +        
 +       entry output 
 +       search uuosym 
 +        
 +       hello: asciz /Hello there. 
 +        
 +       / 
 +       output: outstr hello 
 +        monrt. 
 +        end output 
 +       ^Z 
 +        
 +       @type hello.mac 
 +       title hello 
 +        
 +       entry output 
 +       search uuosym 
 +        
 +       hello: asciz /Hello there. 
 +        
 +       / 
 +       output: outstr hello 
 +        monrt. 
 +        end output 
 +       @compile hello 
 +       MACRO: hello 
 +        
 +       EXIT 
 +       @load hello 
 +       LINK: Loading 
 +       @save hello 
 +        HELLO.EXE.1 Saved 
 +       @<smj>hello 
 +       Hello there. 
 + 
 + 
 +Scans of original user and reference manuals can be found at: 
 + 
 +https://www.livingcomputers.org/Computer-Collection/Online-Systems/User-Documentation.aspx 
 + 
 + 
 + 
tops-20.1585169933.txt.gz · Last modified: 2020/03/25 20:58 by smj

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