Date: Sat, 2 Sep 2000 23:26:38 -0400
From: "E. Smith" <[EMAIL PROTECTED]>
Subject: Re: SNES emulator on Lib
TechnoDragon,
Can you recommend a good NES emulator? I'd like to run Ninja Gaiden on my
L50 if possible.
-e.
-----Original Message-----
From: �TechnoDragon� <[EMAIL PROTECTED]>
To: Libretto <[EMAIL PROTECTED]>
Date: Saturday, September 02, 2000 2:13 PM
Subject: Re: SNES emulator on Lib
Date: Sat, 02 Sep 2000 11:08:54 -0700
From: =?iso-8859-1?Q?=B7TechnoDragon=B7?= <[EMAIL PROTECTED]>
Subject: Re: SNES emulator on Lib
>Anyone use an SNES emulator on their Lib? Is your video and audio
>performance poor. If not, which emulator are you using?
Boy, you sure came to the right person. I just happen to play snes
all of the time on my libretto on long business trips. I even made a
parallel port to snes controller adapter so that I can have a better input
device than the keyboard.
Ok, in order to have an 80x86 processor emulate a snes, it has to
create a virtual motorola 68000 processor. Even though the origional snes
ran at like 4mhz or so, you'll need at least a 200mhz in order to get
decent emulation.
My libretto 70ct is a 133mhz, and it kinda sucks, but it's better
than nothing. If you're running it on a 60ct or 50ct, I pity you. :)
To speed it up, try turning off sound emulation. Because the emulator
is not trying to emulate sound anymore, it has more cpu cycles dedicated to
emulating the graphics. You may notice the improvement, you may not, but
its there.
Another thing to do is run it truly from DOS. Not a dos prompt in
windows, but a true start the computer when pressing F8 or something and
not even load windows and go straight to the dos prompt type dos prompt.
Without the windows overhead, you'll have way more ram and it'll run faster.
Sound will indeed suck. A tiny mono speaker in the libretto that's
less than 1" in diameter is not the best source for sound. I perfer
fingernails running down a chalkboard to hearing that speaker.
If you must use sound, use headphones or external speakers. That
alone will improve the quality one hell of a lot.
When it emulates sound, you can choose what rate the emulation is at
that's fed to the sound device. The default is usually 22050hz in mono. In
the settings this can be changed to a nicer, higher rate, like 44100hz in
stereo.
(please note that sound support is a pain in the ass under a pure dos
boot, so you may not even have dos sound abilities except for under
windows. also, some games require sound in order for their internal timing
to work, turning off sound emulatuion may cause a few games to lock at
certain points)
Usually there's an automatic frame skip. The emulator will
automatically skip frames on slow systems in order to keep the game running
in real time. I choose to switch this off.
You'll notice that the game will now be running in slow motion. This
can be remedied to manually turn up the frame skip. Auto frame skip will
skip more frames than a manual one, because of the calculations to see if
it needs to skip or not.
If you turn up the frame skip too high, you'll get a super fast game.
Great for if a game is no longer a challenge to you. :)
Finally, try to get a vesa2 mode to work for the emulator under dos,
or run it in 16bpp or 24bpp graphics mode under windows for a windows
emulator. This'll let the game now use effects such as transparency and
faster graphics drawing modes.
The emulator I use is called ZSNES. ( http://www.zsnes.com ) ZSNES
rocks over other emulators because it is written completely in assembly
language. This means that it's as fast of an emulator as one can get.
Better than pretty much any other emulator I've seen.
It's pretty simple to get working, but you'll find that it indeed
does work the best for emulation of snes under the libretto's limited
resources.
After writing this email, I just checked out the site, it looks like
they have a windows version. Humm, that might work almost as good as the
dos version. But it is in beta though and I couldn't get it to work on my
desktop system.
( If you get multiple copies of this message, it's just )
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