M doc/mgba.6 → doc/mgba.6

@@ -14,6 +14,7 @@ .Nm mgba
 .Op Fl 123456dfg
 .Op Fl b Ar biosfile
 .Op Fl c Ar cheatfile
+.Op Fl l Ar loglevel
 .Op Fl p Ar patchfile
 .Op Fl s Ar n
 .Op Fl v Ar moviefile
@@ -52,6 +53,34 @@ Start a
 .Xr gdb 1
 session.
 By default the session starts on port 2345.
+.It Fl l Ar loglevel
+Log messages during emulation to
+.Dv stdout .
+.Ar loglevel
+is a bitmask defining which types of messages to log:
+.Bl -inset
+.It 0x01
+fatal errors
+.It 0x02
+errors
+.It 0x04
+warnings
+.It 0x08
+informative messages
+.It 0x10
+debugging messages
+.It 0x20
+stub messages
+.It 0x100
+in\(hygame errors
+.It 0x200
+software interrupts
+.It 0x400
+emulator status messages
+.It 0x800
+serial I/O messages
+.El
+The default is to log warnings, errors, fatal errors, and status messages.
 .It Fl p Ar patchfile , Fl -patch Ar patchfile
 Specify a patch file in IPS or UPS format.
 .It Fl s Ar n , Fl -frameskip Ar n