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1.1 ! root 1: .\" ! 2: .\" v6run.1 4.1 82/05/12 ! 3: .\" ! 4: .TH V6RUN 1 ! 5: .SH NAME ! 6: v6run, v7run \- compatability mode execution on VAX ! 7: .SH SYNOPSIS ! 8: .B v6run ! 9: [ ! 10: .B \-root ! 11: ] file ! 12: .SH DESCRIPTION ! 13: .I V6run ! 14: and ! 15: .I v7run ! 16: are programs to run UNIX version 6 and UNIX version 7 ! 17: .I a.out ! 18: format PDP-11 executable files. ! 19: The hardware compatability mode of the VAX is used for all PDP-11 ! 20: instructions for which it applies. ! 21: System calls from the compatability mode program are caught ! 22: and simulated by executing appropriate native mode system calls. ! 23: .PP ! 24: The optional ! 25: .I root ! 26: specification indicates a directory which is to be treated as ! 27: the root directory for the process and its children. ! 28: This is especially useful for running a PDP-11 shell on ! 29: a directory hierarchy which looks like a PDP-11 file system ! 30: using a command such as ! 31: .sp ! 32: .ti +5 ! 33: "v6run -/user/pdp11stuff/v6files /bin/sh". ! 34: .sp ! 35: Note that the specification of the file to execute (/bin/sh) ! 36: is relative to the specified directory. ! 37: .SH DIAGNOSTICS ! 38: Open failures are reported if files can not be opened for read access. ! 39: Other error messages concern bad system calls, bad a.out format etc. ! 40: .SH BUGS ! 41: There is no way to run separated I/D space processes. ! 42: The floating point simulation has not been well tested and no ! 43: doubt has some problems. ! 44: .SH AUTHOR ! 45: Arthur W. Wetzel (University of Pittsburgh - IDIS)
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