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Markup: .Fn instead of .Nm, .Tn, offset indent, newline for a new sentence.

This commit is contained in:
jruoho 2010-05-05 05:49:38 +00:00
parent 4a4dc62ed5
commit 50ad9a0506
1 changed files with 38 additions and 22 deletions
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60
share/man/man9/man9.i386/bioscall.9
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@ -1,4 +1,4 @@
.\" $NetBSD: bioscall.9,v 1.8 2008/04/30 13:10:59 martin Exp $
.\" $NetBSD: bioscall.9,v 1.9 2010/05/05 05:49:38 jruoho Exp $
.\"
.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd October 1, 1998
.Dd May 5, 2010
.Dt BIOSCALL 9 i386
.Os
.Sh NAME
@ -39,9 +39,10 @@
.Fn bioscall "int function" "struct bioscallregs *regs"
.Sh DESCRIPTION
The
.Nm
function switches the processor into real mode, calls the BIOS interrupt
numbered
.Fn bioscall
function switches the processor into real mode, calls the
.Tn BIOS
interrupt numbered
.Fa function ,
and returns to protected mode.
.Pp
@ -50,10 +51,13 @@ bootstrap when necessary to probe devices or pseudo-devices.
.Pp
The register values specified by
.Fa *regs
(with one exception) are installed before the BIOS interrupt is called.
The processor flags are handled specially. Only the following flags are
passed to the
BIOS from the registers in
(with one exception) are installed before the
.Tn BIOS
interrupt is called.
The processor flags are handled specially.
Only the following flags are passed to the
.Tn BIOS
from the registers in
.Fa regs
(the remainder come from the processor's flags register at the time
of the call):
@ -71,23 +75,32 @@ structure is defined to contain structures for each register, to allow
access to 32-, 16- or 8-bit wide sections of the registers.
Definitions are provided which simplify access to the union members.
.Sh RETURN VALUES
.Nm
fills in
The
.Fn bioscall
function fills in
.Fa *regs
with the processor registers as returned from the BIOS call.
with the processor registers as returned from the
.Tn BIOS
call.
.Sh EXAMPLES
The Advanced Power Management driver calls
.Nm
by setting up a register structure with the APM installation check and
device types in registers
.Fn bioscall
by setting up a register structure with the
.Tn APM
installation check and device types in registers
.Fa ax
and
.Fa bx ,
then calls the BIOS to fetch the details for calling the APM support
through a protected-mode interface. The BIOS returns these details in
the registers:
then calls the
.Tn BIOS
to fetch the details for calling the
.Tn APM
support through a protected-mode interface.
The
.Tn BIOS
returns these details in the registers:
.Pp
.Bd -literal
.Bd -literal -offset indent
#include \*[Lt]i386/bioscall.h\*[Gt]
#include \*[Lt]i386/apmvar.h\*[Gt]
struct bioscallregs regs;
@ -104,11 +117,14 @@ bioscall(APM_SYSTEM_BIOS, \*[Am]regs);
.Sh REFERENCES
.Xr apm 4
.Sh HISTORY
.Nm
first appeared in
The
.Fn bioscall
function first appeared in
.Nx 1.3 .
.Sh BUGS
Not all BIOS functions are safe to call through the trampoline, as they
Not all
.Tn BIOS
functions are safe to call through the trampoline, as they
may depend on system state which has been disturbed or used for other
purposes once the
.Nx