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- %*+-------------------------------------+-----------------+---------------------+
- ! Cursor movement ! Block ! Various !
- +-------------------------------------+-----------------+---------------------+
- ! ^S Left char ^D Right char ! ^K^B Begin ! ^J Help !
- ! ^A Left word ^F Right word ! ^K^K End ! ^K^D Quit editor !
- ! ^Q^S Start line ^Q^D End line ! ^K^Y Delete ! ^K^X Exit editor !
- ! ^E Up line ^X Down line ! ^K^C Copy ! ^V INSERT on/off !
- ! ^Q^E Top line ^Q^X Bottom line ! ^K^V Move ! ^Z AUTO on/off !
- ! ^R Up page ^C Down page ! ^K^P Print ! ^B TABS on/off !
- ! ^Q^R Start text ^Q^C End text ! ^K^H Del marks ! ^W ADJUST on/off !
- +-------------------------------------+-----------------+---------------------+
- ! Delete ! Edit ! Search !
- +-------------------------------------+-----------------+---------------------+
- ! DEL Char left ^G Char right ! RETN New line ! ^Q^F Find string !
- ! ^QDEL Start line ^Q^Y End line ! ^I Tabulate ! ^Q^A Find/replace !
- ! ^Y Line all ^T Word right ! ^N Insert CR ! ^L Find next !
- +--------------------------------------+-----------------+--------------------+
- ! Find/replace options: G = Global (all text), N = Replace without prompting !
- +-----------------------------------------------------------------------------+
- ! ADJUST mode: Use ^S and ^D to adjust then ^E or ^X to repeat above or below !
- +-----------------------------------------------------------------------------+
-
- % SURPAS ON-LINE HELP: The command mode
-
- SURPAS prompts by printing '>>'. Each time this prompt appears, SURPAS is
- ready to accept and process a command line. The following commands are
- available in the command mode.
-
- LOAD Load a source text. SAVE Save the source text.
- NAME Set current file name. EDIT Invoke the editor.
- COMPILE Compile the source text. RUN Run current program.
- PROGRAM Compile to program file. OBJECT Compile into object file.
- FIND Find a run-time error. WHERE Find error in include-file.
- DIR Display disk directory. USE Display/set default drive.
- MEMORY Display memory size. ZAP Zap (delete) source text.
- HELP Display help screens. QUIT Return to MS-DOS.
-
- Note that all commands may be abbreviated to their first letter.
-
- For further help on the commands above, enter 'HELP' or 'H' followed by the
- command name (or the first character of it).
-
- %ESURPAS ON-LINE HELP: The EDIT command.
-
- The EDIT command invokes the on-screen editor. Once you are in the editor, a
- list of editor commands may be displayed by pressing CTRL/J.
-
- %LSURPAS ON-LINE HELP: The LOAD command.
-
- The LOAD command is used to load a source text into memory. The command line
- format is:
-
- LOAD <filename>
-
- If the file type is omitted, it defaults to '.PAS'. The current file name is
- set to <filename>. When a file is loaded, it is appended to the end of the
- source text already in memory. If the file specified does not exist, SURPAS
- displays 'No such file'. If loading the file would overflow the memory buffer,
- SURPAS displays 'File too big'. For both errors, the text already in memory
- remains unchanged.
-
- %SSURPAS ON-LINE HELP: The SAVE command.
-
- The SAVE command is used to save the text in memory in a disk file. The com-
- mand line format is:
-
- SAVE <filename>
-
- If <filename> is omitted entirely, it defaults to the current file name set by
- LOAD or NAME. If the file type is omitted, it defaults to '.PAS'. If a file of
- the same name and type exists on the disk specified, its type is changed to
- '.BAK' before the new file is created. If the disk directory is full, SURPAS
- displays 'Directory is full'. If there is not enough room on the disk to cre-
- ate a new file, SURPAS displays 'Disk is full'. If one of these errors are re-
- ported, insert another disk and try SAVE again.
-
- %NSURPAS ON-LINE HELP: The NAME command.
-
- The NAME command is used to change the current file name. The current file
- name is used by SAVE, PROGRAM, and OBJECT when a file name is not explicitly
- stated. The command line format is:
-
- NAME <filename>
-
- If <filename> is omitted entirely, NAME displays the current file name instead
- of changing it. If the file type is omitted, it defaults to '.PAS'.
-
- The current file name is set to 'WORK.PAS' when SURPAS is cold-started and
- when a ZAP command is issued.
-
- %CSURPAS ON-LINE HELP: The COMPILE command.
-
- When the compiler is invoked from a COMPILE command, the object code is stored
- directly into memory in succession of the source text.
-
- Following a successful compilation, you are informed of the size of the code
- segment, the data segment, and free memory (the stack segment):
-
- Code: rrrrrr bytes (aaaa paragraphs)
- Data: ssssss bytes (bbbb paragraphs)
- Free: tttttt bytes (cccc paragraphs)
-
- The numbers displayed in parentheses are the paragraph sizes (in hex) of each
- area in (one paragraph corresponds to 16 bytes).
-
- Note that whenever you invoke the editor, the object code is erased.
-
- %RSURPAS ON-LINE HELP: The RUN command.
-
- The RUN command is used to execute a program. If no program code is present,
- the compiler is invoked to compile the program (see 'HELP COMPILE' screen).
- Assuming a successful compilation, or if the object code was already present,
- the program is started. When it ends, it automatically transfers control to
- the command mode.
-
- If a run time error occurs, the program will terminate displaying a run time
- error message, for instance:
-
- EXECUTION ERROR 04 AT PC=254E
- Program terminated
-
- You may then use the FIND command to locate the statement that caused the
- error (see 'HELP FIND' screen).
-
- %PSURPAS ON-LINE HELP: The PROGRAM command.
-
- The PROGRAM command is used to compile the program into a command file on a
- disk. The command line formats is:
-
- PROGRAM <filename>,<ssegmin>,<ssegmax>,<csegmin>,<dsegmin>
-
- If <filename> is omitted, the current file name is used, with its type changed
- to '.COM'. The file type defaults to '.COM'. <ssegmin>, <ssegmax>, <csegmin>,
- and <dsegmin> are hex numbers (up to four hex digits). Any one of the four hex
- parameters may be omitted, for instance 'PROGRAM TEST,800' (only <ssegmin>) or
- 'PROGRAM TEST,,,CD8,12E4' (only <csegmin> and <dsegmin>).
-
- <ssegmin> and <ssegmax> specify the minimum and maximum sizes (in paragrahps)
- of the stack segment. <ssegmin> defaults to 100 hex (4K bytes), and <ssegmax>
- defaults to the value of <ssegmin>. <csegmin> and <dsegmin> specify the mini-
- mum sizes (in paragrahps) of the code and data segments. They default to the
- lowest possible values. They may never be larger than hex FFF (64K bytes), and
- usually they are only specified for programs that will chain to other programs
- with larger code and/or data segments. On compiling the program, SURPAS also
- writes a copy of the run-time package into the command file. Once compiled,
- the program can be executed from MS-DOS simply by typing its name.
-
- %OSURPAS ON-LINE HELP: The OBJECT command.
-
- The OBJECT command produces an object file which contains the compiled program
- code only (i.e. without the run-time package and the command file header). The
- command line format is:
-
- OBJECT <filename>
-
- If <filename> is omitted, the current file name is used, with its type changed
- to '.CHN' (short for chain). The file type defaults to '.CHN'. Object (chain)
- files may only be activated through the chain procedure of SURPAS Pascal. For
- further details on program chaining, please refer to the SURPAS Pascal Prog-
- ramming Manual.
-
- %FSURPAS ON-LINE HELP: The FIND command.
-
- The FIND command is used to locate a statement in the source text which cor-
- responds to an offset address in the object code. The command line format is:
-
- FIND <offset>
-
- where <offset> is the offset address of the statement to be located. The off-
- set address must be specified in hex (up to four hex digits). <offset> may be
- omitted, in which case it defaults to the offset address of the last run time
- error. Thus, to locate the statement that caused a run time error, simply en-
- ter 'FIND'.
-
- If the offset address is found, the compiler stops and displays 'Target ad-
- dress found' followed by 'Press <RETURN> to edit or <ESC> to abort. When you
- press RETURN, the editor is invoked, and the cursor is placed at or just after
- the relevant section. If the offset is out of range, the compiler outputs
- 'Target address not found'.
-
- %WSURPAS ON-LINE HELP: The WHERE command.
-
- The WHERE command invokes the editor, and moves the cursor to a specific posi-
- tion in the text. The command line format is:
-
- WHERE <offset>
-
- where <offset> is a hex number specifying the offset address of the spot to be
- located. <offset> may be omitted, in which case it defaults to the offset ad-
- dress of the last compilation error within an include. Thus, when the compiler
- reports an error within an include file, first save the source text using the
- SAVE command, next erase the memory buffer using the ZAP command, and load the
- include file using the LOAD command, and finally issue a WHERE command with no
- argument, which immediately invokes the editor and moves the cursor to the
- spot in error.
-
- Whenever you leave the editor, the offset address of the cursor is recorded as
- the default WHERE argument. Thus, if you use WHERE instead of EDIT to invoke
- the editor, the cursor will be moved to the spot you left previously instead
- of to the beginning of the text.
-
- %DSURPAS ON-LINE HELP: The DIR command.
-
- The DIR command is used to display the directory of a disk. The command line
- format is:
-
- DIR <afn>
-
- where <afn> is an ambiguous file name as the one used in an MS-DOS DIR com-
- mand, i.e. question marks (?) and asterisks (*) may be interspersed through
- the file name and type fields.
-
- A question mark will match any character in that position, and an asterisk will
- match any combination of characters within the field in which it is used. If
- both the name field and the type field are omitted, leaving only a drive iden-
- tifier and a colon, then all files on that drive are listed. If <afn> is omit-
- ted entirely, then all files of the default drive are listed.
-
- Note that system files are not displayed.
-
- %USURPAS ON-LINE HELP: The USE command.
-
- The USE command is used to display and set the default drive number. The com-
- mand line format is:
-
- USE <drive>
-
- where <drive> is a drive identifier (A-O). If <drive> is specified, that drive
- becomes the default drive. The USE command ends by displaying the default
- drive identifier.
-
- %MSURPAS ON-LINE HELP: The MEMORY command.
-
- The MEMORY command displays the size of free memory:
-
- Free: rrrrrr bytes (aaaa paragraphs)
-
- The number is parentheses is the paragraph size (in hex) of free memory. One
- paragraph corresponds to 16 bytes.
-
- %ZSURPAS ON-LINE HELP: The ZAP command.
-
- The ZAP command erases the text in memory and sets the current file name to
- 'WORK.PAS'. As a safety precaution, ZAP asks 'Are you sure (Y/N)?'. Any answer
- but 'Y' or 'y' will leave the text unchanged.
-
- %QSURPAS ON-LINE HELP: The QUIT command.
-
- The QUIT command transfers control to MS-DOS. You may later warm-start SURPAS
- by entering 'SURPAS *'. This of course requires that no vital memory areas
- have been overwritten by other programs run it the meantime.
-