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mdoc improvements and better readability of the text.

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PR:		18811
Submitted by:	Christian Weisgerber <naddy@unix-ag.uni-kl.de>
Reviewed by:	asmodai
This commit is contained in:
Alexander Langer 2000-06-13 12:25:20 +00:00
parent f3039b6800
commit a709b8e635
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=61622
1 changed files with 12 additions and 11 deletions
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23
usr.bin/uac/uac.1
View file

@ -35,15 +35,17 @@
.Op Fl fprs
.Sh DESCRIPTION
.Nm
sets the per-process handling of "Unaligned Access" events. Unlike many
other CPU's the DEC Alpha processor cannot access unaligned data. To work
around this, the Alpha has the ability to fix the UA fault rather than send
the faulting process a
sets the per-process handling of
.Dq Unaligned Access
events.
Unlike many other CPU's the DEC Alpha processor cannot access unaligned data.
To work around this, the Alpha has the ability to fix the UA fault
rather than send the faulting process a
.Dv SIGBUS
signal.
However, doing so does slow down the
execution of the faulting process.
At boot up, the DEC Alpha CPU defaults to printing
At bootup, the DEC Alpha CPU defaults to printing
.Bl -tag -width indent
.It pid Ar nnn Pq Ar <progname> Ns Xo
.No : unaligned access: Xo
@ -56,10 +58,10 @@ At boot up, the DEC Alpha CPU defaults to printing
.Xc
.Xc
.El
when a UA happens along with fixing it so
the faulting instruction can continue.
when a UA happens along with fixing it,
so the faulting instruction can continue.
UA handling settings are inherited by child process.
Issued with out any options,
Issued without any options,
.Nm
displays the current UA handling for the parent process.
.Pp
@ -75,9 +77,8 @@ Resets the unaligned access error settings back to their bootup defaults.
.It Fl s
Unaligned access errors result in a
.Dv SIGBUS
being delivered to the parent and
its future descendants. This aid in pin pointing the faulting access so it
debugged.
being delivered to the parent and its future descendants.
This aid in pin pointing the faulting access so it can be debugged.
.El
.Sh DIAGNOSTICS
Exit status is 0 on success, and 1 if the command