--- trunk/man/gxemul.1	2007/10/08 16:19:11	18
+++ trunk/man/gxemul.1	2007/10/08 16:19:23	20
@@ -1,4 +1,4 @@
-.\" $Id: gxemul.1,v 1.35 2005/10/27 14:01:11 debug Exp $
+.\" $Id: gxemul.1,v 1.39 2005/11/23 22:03:25 debug Exp $
 .\"
 .\" Copyright (C) 2004-2005  Anders Gavare.  All rights reserved.
 .\"
@@ -29,7 +29,7 @@
 .\" This is a minimal man page for GXemul. Process this file with
 .\"     groff -man -Tascii gxemul.1    or    nroff -man gxemul.1
 .\"
-.Dd OCTOBER 2005
+.Dd NOVEMBER 2005
 .Dt GXEMUL 1
 .Os
 .Sh NAME
@@ -50,17 +50,18 @@
 is an experimental instruction-level machine emulator. Several
 emulation modes are available. In some modes, processors and surrounding
 hardware components are emulated well enough to let unmodified operating
-systems (e.g. NetBSD) run as if they were running on a real machine.
+systems (e.g. NetBSD) run inside the emulator as if they were running on a 
+real machine.
 .Pp
 The processor architecture best emulated by GXemul is MIPS, but other
-architectures are also partially emulated.
+architectures (ARM and PowerPC) are also partially emulated.
 .Pp
 MIPS processors are emulated either using a simple type of binary 
 translator (on Alpha and i386 hosts), or using traditional slow 
 interpretation (all other hosts, including amd64 machines running in 
 64-bit mode).
 .Pp
-Non-MIPS processors (e.g. ARM) are emulated using a newer dynamic 
+Non-MIPS processors are emulated using a newer dynamic 
 translation system (called dyntrans in the rest of this man page);
 dyntrans does not require any host-specific code, so it should work on any 
 platform. Performance is somewhere between binary translation and 
@@ -257,7 +258,17 @@
 .Ar n
 x
 .Ar n
-times.
+times. This option is useful when emulating a very large framebuffer, and 
+the actual display is of lower resolution. If
+.Ar n
+is negative, then there will be no scaledown, but emulation of certain 
+graphic controllers will be scaled up
+by
+.Ar -n
+times instead. E.g. Using
+.Ar -2
+with VGA text mode emulation will result in 80x25 character cells rendered 
+in a 1280x800 window, instead of the normal resolution of 640x400.
 .It Fl y Ar x
 Set max_random_cycles_per_chunk to
 .Ar x
@@ -365,7 +376,7 @@
 Userland (syscall-only) emulation doesn't really work yet.
 .Pp
 Emulation of MIPS CPUs is done differently from other emulation modes; the 
-documentation sometimes only reflect the way things work with MIPS 
+documentation sometimes only reflects the way things work with MIPS 
 emulation, and it is incorrect when applied to e.g. ARM emulation.
 .Pp
 .Nm