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Annotation of 40BSD/games/compat/v6run.1, revision 1.1

1.1     ! root        1: .TH V6RUN 1 
        !             2: .SH NAME
        !             3: v6run, v7run  \-  compatability mode execution on VAX
        !             4: .SH SYNOPSIS
        !             5: .B v6run
        !             6: [
        !             7: .B \-root
        !             8: ] file
        !             9: .SH DESCRIPTION
        !            10: .I V6run
        !            11: and
        !            12: .I v7run
        !            13: are programs to run UNIX version 6 and UNIX version 7
        !            14: .I a.out
        !            15: format PDP-11 executable files.
        !            16: The hardware compatability mode of the VAX is used for all PDP-11
        !            17: instructions for which it applies.
        !            18: System calls from the compatability mode program are caught
        !            19: and simulated by executing appropriate native mode system calls.
        !            20: .PP
        !            21: The optional
        !            22: .I root
        !            23: specification indicates a directory which is to be treated as
        !            24: the root directory for the process and its children.
        !            25: This is especially useful for running a PDP-11 shell on
        !            26: a directory hierarchy which looks like a PDP-11 file system
        !            27: using a command such as
        !            28: .sp
        !            29: .ti +5
        !            30: "v6run -/user/pdp11stuff/v6files /bin/sh".
        !            31: .sp
        !            32: Note that the specification of the file to execute (/bin/sh)
        !            33: is relative to the specified directory.
        !            34: .SH DIAGNOSTICS
        !            35: Open failures are reported if files can not be opened for read access.
        !            36: Other error messages concern bad system calls, bad a.out format etc.
        !            37: .SH BUGS
        !            38: There is no way to run separated I/D space processes.
        !            39: The floating point simulation has not been well tested and no
        !            40: doubt has some problems.
        !            41: .SH AUTHOR
        !            42: Arthur W. Wetzel (University of Pittsburgh - IDIS)

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