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--- tutorials:pascal [2024/06/20 01:50]
papa Added Hello, World! example run
+++ tutorials:pascal [2024/06/20 05:10] (current)
papa [Hello, World!]
@@ Line 1: / Line 1: @@
-====== Pascal ======
+====== The Pascal Compiler ======
-The TWENEX.ORG Pascal compiler was developed at Stanford LOTS based on the DECUS PASCAL compiler from Hamburg University.
+The TWENEX.ORG Pascal compiler was originally developed at the
+University of Hamburg as "DECSystem-10 Pascal". The compiler was
+later modified and distributed by Rutgers University with fixes
+and updates contributed by CMU, Stanford, USC, Sandia National
+Laboratories and other sites.
-The compiler can be invoked either with the [[tutorials:compilers|standard compile/load/execute commands]] or directly with ''@PASCAL''. The standard extension for Pascal source files is ''.PAS''.
+The compiler can be invoked either with the [[tutorials:compilers|standard compile/load/execute commands]] or directly with the EXEC command ''PASCAL''. The standard extension for Pascal source files is ''.PAS''.
-Additional information on the LOTS Pascal compiler can be found in ''@HELP PASCAL''. (The help file mentions another Pascal compiler, PASSGO, but it is not available on TWENEX.ORG.) Additional documentation is in the following files in directory ''NEO:<DOCUMENTATION>'' (''DOC:''):
-  * PASCAL.DOC
-  * PASCAL.HACKER
-  * PASCAL.INCOMPATIBILITIES-DOC
-  * PASCAL.MEM
-  * PASCAL.UPDATE
-  * PASCAL.USER
 ===== Hello, World! =====
@@ Line 26: / Line 22: @@
 (* Hello program in Pascal *)
-program Hello(Output);
+program Hello (Output);
 begin
-	writeln('Hello, World!');
+	writeln ('Hello, World!');
 end.
 </code>
@@ Line 44: / Line 40: @@
 </code>
-<sup>*</sup> Syntax of the EXECUTE command is ''EXECUTE //filename//[.//extension//]''. The file extension is optional if you used the standard source file extension (.PAS for Pascal) and there are no other program source files with the same name in your default directory.
+  * Syntax of the EXECUTE command is ''EXECUTE //filename//[.//extension//]''. The file extension is optional if you used the standard source file extension (''.PAS'') and there are no other program source files with the same name in your default directory.
+  * At the ''OUTPUT     :'' prompt, press ''Enter'' to direct output to your terminal.
-<sup>*</sup> At the ''OUTPUT     :'' prompt, press ''Enter'' to direct output to your terminal.
+===== Additional Information =====
-===== References =====
+Additional information on the Pascal compiler can be found in ''HELP PASCAL''. (The help file mentions a second Pascal compiler, PASSGO, which is not available on TWENEX.ORG.) Additional documentation is in the following files in directory ''NEO:<DOCUMENTATION>'' (''DOC:''):
+  * PASCAL.DOC
-(The following reference documents are for the DEC TOPS-20 PASCAL compiler, which is not installed on TWENEX.ORG, not the LOTS compiler. Although the two compilers differ in some respects, the TOPS-20 compiler documents may provide some useful guidance.)
+  * PASCAL.HACKER
+  * PASCAL.INCOMPATIBILITIES-DOC
+  * PASCAL.MEM
+  * PASCAL.UPDATE
+  * PASCAL.USER
-  * //[[http://bitsavers.org/pdf/dec/pdp10/TOPS20/pascal/AA-L314A-TM_TOPS-20_PASCAL_Primer_Sep83.pdf|TOPS-20 PASCAL Primer]]//, Digital Equipment Corporation, September 1983.
+The following is a reference on the ISO Pascal language standard:
-  * //[[http://bitsavers.org/pdf/dec/pdp10/TOPS20/pascal/AA-L315A-TM_PASCAL_Language_Manual_Ver_1_Sep83.pdf|TOPS-20 PASCAL Language Manual]]//, Digital Equipment Corporation, September 1983.
+  * K. Jensen and N. Wirth, //[[http://pascal.hansotten.com/uploads/books/Pascal_User_Manual_and_Report_Fourth_Edition.pdf|Pascal User Manual and Report, 4th ed.]]// New York: Springer-Verlag, 1991. [Accessed: 2024/6/20]

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