mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-01 08:27:59 +00:00
Mdoc Janitor:
* Fix hard sentence breaks.
This commit is contained in:
parent
c7d3a65d43
commit
ce91e62bc6
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=121378
@ -56,8 +56,8 @@ the BIOS functions and data encountered on x86 PC-architecture systems.
|
||||
.Bl -tag -width 20n
|
||||
.It Fn bios_sigsearch
|
||||
Searches the BIOS address space for a service signature, usually an
|
||||
uppercase ASCII sequence surrounded by underscores. The search begins
|
||||
at
|
||||
uppercase ASCII sequence surrounded by underscores.
|
||||
The search begins at
|
||||
.Fa start ,
|
||||
or at the beginning of the BIOS if
|
||||
.Fa start
|
||||
@ -67,11 +67,14 @@ bytes of the BIOS image and
|
||||
.Fa sig
|
||||
are compared at
|
||||
.Fa sigofs
|
||||
bytes offset from the current location. If no match is found, the
|
||||
bytes offset from the current location.
|
||||
If no match is found, the
|
||||
current location is incremented by
|
||||
.Fa paralen
|
||||
bytes and the search repeated. If the signature is found, its effective
|
||||
physical address is returned. If no signature is found, zero is returned.
|
||||
bytes and the search repeated.
|
||||
If the signature is found, its effective
|
||||
physical address is returned.
|
||||
If no signature is found, zero is returned.
|
||||
.It Fn BIOS_VADDRTOPADDR
|
||||
Returns the effective physical address which corresponds to the kernel
|
||||
virtual address
|
||||
@ -94,7 +97,8 @@ parameter table during system startup.
|
||||
.Sh BIOS32
|
||||
At system startup, the BIOS is scanned for the BIOS32 Service Directory
|
||||
(part of the PCI specification), and the existence of the directory is
|
||||
recorded. This can then be used to locate other services.
|
||||
recorded.
|
||||
This can then be used to locate other services.
|
||||
.Bl -tag -width 20n
|
||||
.It Fn bios32_SDlookup
|
||||
Attempts to locate the BIOS32 service matching the 4-byte identifier
|
||||
@ -104,8 +108,10 @@ field of the
|
||||
.Fa ent
|
||||
argument.
|
||||
.It Fn bios32
|
||||
Calls a bios32 function. This presumes that the function is capable of
|
||||
working within the kernel segment (normally the case). The virtual address
|
||||
Calls a bios32 function.
|
||||
This presumes that the function is capable of
|
||||
working within the kernel segment (normally the case).
|
||||
The virtual address
|
||||
of the entrypoint is supplied in
|
||||
.Fa entry
|
||||
and the register arguments to the function are supplied in
|
||||
|
@ -50,8 +50,8 @@
|
||||
The
|
||||
.Fn boot
|
||||
function handles final system shutdown, and either halts or reboots
|
||||
the system. The exact action to be taken is determined by the
|
||||
flags passed in
|
||||
the system.
|
||||
The exact action to be taken is determined by the flags passed in
|
||||
.Fa howto
|
||||
and by whether or not the system has finished autoconfiguration.
|
||||
.Pp
|
||||
|
Loading…
Reference in New Issue
Block a user