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Annotation of 43BSDTahoe/man/man2/syscall.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)syscall.2   6.2 (Berkeley) 4/16/86
        !             6: .\"
        !             7: .TH SYSCALL 2 "April 16, 1986"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: syscall \- indirect system call
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .ft B
        !            14: #include <syscall.h>
        !            15: .PP
        !            16: .BR "syscall(number, arg, ...)" \  \  (VAX-11)
        !            17: .fi
        !            18: .SH DESCRIPTION
        !            19: .I Syscall
        !            20: performs the system call whose assembly language
        !            21: interface has the specified
        !            22: .I number,
        !            23: register arguments
        !            24: .I r0
        !            25: and
        !            26: .I r1
        !            27: and further arguments
        !            28: .IR arg .
        !            29: Symbolic constants for system calls can be found in the header file
        !            30: .I <syscall.h>.
        !            31: .PP
        !            32: The r0 value of the system call is returned.
        !            33: .SH DIAGNOSTICS
        !            34: When the C-bit is set,
        !            35: .I syscall
        !            36: returns \-1 and sets the
        !            37: external variable 
        !            38: .I errno
        !            39: (see
        !            40: .IR intro (2)).
        !            41: .SH BUGS
        !            42: There is no way to simulate system calls
        !            43: such as
        !            44: .IR pipe (2),
        !            45: which return values in register r1.

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