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Annotation of 43BSDReno/pgrm/pascal/px/px.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980, 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"     @(#)px.1       6.4 (Berkeley) 6/26/90
        !            19: .\"
        !            20: .Dd June 26, 1990
        !            21: .Dt PX 1
        !            22: .Sh NAME
        !            23: .Nm px
        !            24: .Nd Pascal interpreter
        !            25: .Sh SYNOPSIS
        !            26: .Nm px
        !            27: .Op  Ar obj Op Ar argument ...
        !            28: .Sh DESCRIPTION
        !            29: .Nm Px
        !            30: interprets the abstract machine code generated by
        !            31: .Xr pi 1 .
        !            32: The first argument is the file to be interpreted, and defaults
        !            33: to
        !            34: .Ar obj ;
        !            35: remaining arguments are available to the Pascal program using the
        !            36: built-ins
        !            37: .Ar argv
        !            38: and
        !            39: .Ar argc .
        !            40: .Nm Px
        !            41: is also invoked by
        !            42: .Nm pix
        !            43: when running `load and go'.
        !            44: .Pp
        !            45: If the program terminates abnormally an error message and a
        !            46: control flow backtrace are printed.
        !            47: The number of statements executed and total execution time
        !            48: are printed after normal termination.
        !            49: The
        !            50: .Cm p
        !            51: option of
        !            52: .Nm pi
        !            53: suppresses all of this except the message indicating the cause
        !            54: of abnormal termination.
        !            55: .Sh FILES
        !            56: .Dw pmon.out
        !            57: .Di L
        !            58: .Dp Pa obj
        !            59: default object file
        !            60: .Dp Pa pmon.out
        !            61: profile data file
        !            62: .Dp
        !            63: .Sh SEE ALSO
        !            64: .Em Berkeley Pascal User's Manual
        !            65: .br
        !            66: .Xr pi 1 ,
        !            67: .Xr pix 1
        !            68: .Sh DIAGNOSTICS
        !            69: Most run-time error messages are self-explanatory.
        !            70: Some of the more unusual ones are:
        !            71: .Tw Ds
        !            72: .Tp Reference to an inactive file
        !            73: A file other than
        !            74: .Ar input
        !            75: or
        !            76: .Ar output
        !            77: was used before a call to
        !            78: .Ar reset
        !            79: or
        !            80: .Ar rewrite .
        !            81: .Tp Statement count limit exceeded
        !            82: The limit of 500,000 executed statements
        !            83: (which prevents excessive looping or recursion)
        !            84: has been exceeded.
        !            85: .Tp Bad data found on integer read
        !            86: .Tp Bad data found on real read
        !            87: Usually, non-numeric input was found for a number.
        !            88: For reals, Pascal requires digits before and after the decimal
        !            89: point so that numbers like `.1' or `21.' evoke the second diagnostic.
        !            90: .Tp panic:
        !            91: .Em Some message
        !            92: Indicates an internal inconsistency detected in
        !            93: .Nm px
        !            94: probably due to a Pascal system bug.
        !            95: .Tp
        !            96: .Sh AUTHORS
        !            97: Charles B. Haley, William Joy, and Ken Thompson
        !            98: .br
        !            99: VAX-11 version by Kirk McKusick
        !           100: .Sh HISTORY
        !           101: .Nm Px
        !           102: appeared in 3 BSD.
        !           103: .Sh BUGS
        !           104: Post-mortem traceback is not limited;
        !           105: infinite recursion leads to almost infinite traceback.

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