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[thirdparty/man-pages.git] / man2 / vm86.2

diff --git a/man2/vm86.2 b/man2/vm86.2
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+++ b/man2/vm86.2
@@ -1,8 +1,7 @@
-.\" Hey Emacs! This file is -*- nroff -*- source.
-.\"
 .\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
 .\" Copyright 1997 Andries E. Brouwer (aeb@cwi.nl)
 .\"
+.\" %%%LICENSE_START(VERBATIM)
 .\" Permission is granted to make and distribute verbatim copies of this
 .\" manual provided the copyright notice and this permission notice are
 .\" preserved on all copies.
@@ -11,7 +10,7 @@
 .\" manual under the conditions for verbatim copying, provided that the
 .\" entire resulting derived work is distributed under the terms of a
 .\" permission notice identical to this one.
-.\" 
+.\"
 .\" Since the Linux kernel and libraries are constantly changing, this
 .\" manual page may be incorrect or out-of-date.  The author(s) assume no
 .\" responsibility for errors or omissions, or for damages resulting from
@@ -19,51 +18,58 @@
 .\" have taken the same level of care in the production of this manual,
 .\" which is licensed free of charge, as they might when working
 .\" professionally.
-.\" 
+.\"
 .\" Formatted or processed versions of this manual, if unaccompanied by
 .\" the source, must acknowledge the copyright and authors of this work.
+.\" %%%LICENSE_END
 .\"
-.TH VM86 2 1997-07-17 "Linux 2.1.15" "Linux Programmer's Manual"
+.TH VM86 2 2009-02-20 "Linux" "Linux Programmer's Manual"
 .SH NAME
 vm86old, vm86 \- enter virtual 8086 mode
 .SH SYNOPSIS
 .B #include <sys/vm86.h>
-.sp
+.PP
 .BI "int vm86old(struct vm86_struct *" info );
-.sp
+.PP
 .BI "int vm86(unsigned long " fn ", struct vm86plus_struct *" v86 );
 .SH DESCRIPTION
 The system call
-.B vm86
-was introduced in Linux 0.97p2. In Linux 2.1.15 and 2.0.28 it was renamed to
-.BR vm86old ,
+.BR vm86 ()
+was introduced in Linux 0.97p2.
+In Linux 2.1.15 and 2.0.28, it was renamed to
+.BR vm86old (),
 and a new
-.B vm86
-was introduced. The definition of `struct vm86_struct' was changed
+.BR vm86 ()
+was introduced.
+The definition of
+.IR "struct vm86_struct"
+was changed
 in 1.1.8 and 1.1.9.
-.LP
+.PP
 These calls cause the process to enter VM86 mode (virtual-8086 in Intel
-literature), and are used by 
+literature), and are used by
 .BR dosemu .
 .PP
 VM86 mode is an emulation of real mode within a protected mode task.
-.SH "RETURN VALUE"
-On success, zero is returned.  On error, \-1 is returned, and
+.SH RETURN VALUE
+On success, zero is returned.
+On error, \-1 is returned, and
 .I errno
 is set appropriately.
 .SH ERRORS
 .TP
 .B EFAULT
 This return value is specific to i386 and indicates a problem with getting
-userspace data.
+user-space data.
 .TP
 .B ENOSYS
 This return value indicates the call is not implemented on the present
 architecture.
 .TP
 .B EPERM
-Saved kernel stack exists. (This is a kernel sanity check; the saved
-stack should only exist within vm86 mode itself.)
-.SH "CONFORMING TO"
-This call is specific to Linux on Intel processors, and should not be
-used in programs intended to be portable.
+Saved kernel stack exists.
+(This is a kernel sanity check; the saved
+stack should exist only within vm86 mode itself.)
+.SH CONFORMING TO
+This call is specific to Linux on 32-bit Intel processors,
+and should not be used in programs intended to be portable.