🚀 go-pugleaf

Chris 'Strunoph' Norman (cbno...@undergrad.math.uwaterloo.ca) wrote:
: Stupid question perhaps, but there's no answer in the FAQ to this one.
: Will a math co-processor speed up Doom?  I'm running a 486DLC/40, and
: if I get a 20% increase in speed or more it'll be worth the $$$ to me.

>From what I hear, a 386 w/ an FPU will kick ass all over a 486 w/o an FPU
I've seen DOOM run on a 486DX 33 and it was quite smooth and playable.  If 
you don't have an FPU, I'd strongly recommend getting one, and not just for
DOOM.

Later,
Jason Weiler
wei...@rpi.edu

In article <2hhpn8$9...@usenet.rpi.edu>,
Jason Weiler <wei...@goya.its.rpi.edu> wrote:
>
>>From what I hear, a 386 w/ an FPU will kick ass all over a 486 w/o an FPU
>I've seen DOOM run on a 486DX 33 and it was quite smooth and playable.  If 
>you don't have an FPU, I'd strongly recommend getting one, and not just for
>DOOM.

Um, *all* 486s have an FPU built in, except the SXs... Correct me if I'm
wrong...
-- 
jo...@wpi.edu - WPI Computer Science |Linux 0.99.14f:Free 32 bit OS for the i386

I have a 386/40, and just got a math coprocessor.  I don't see any 
noticable speedup in Doom...what's wrong?  Isn't it built to use a 
coprocessor?  Or did they just use 486-specific code if a 486 is present 
(or something)?

I kind of expected to see it run nearly as smooth as a friend's slower 
486, due to raw speed.  Huh?

In <2hhpn8$9...@usenet.rpi.edu> wei...@goya.its.rpi.edu (Jason Weiler) writes:

:From what I hear, a 386 w/ an FPU will kick ass all over a 486 w/o an FPU
:I've seen DOOM run on a 486DX 33 and it was quite smooth and playable.  

It's also quite smooth and playable with my 486SX-33. 

:If you don't have an FPU, I'd strongly recommend getting one, and not just for
:DOOM.

What for then? I have no software that uses it, so it'd be wasted money.
Of course, when upgrade time comes, there probably won't be a 486SX2 or SX3,
so then I'll have to waste money on the FPU...

Anssi

-- 
Anssi Saari s10...@ee.tut.fi                
Tampere University of Technology 
Finland, Europe                  

In article <2hisbv$m...@nwfocus.wa.com>, Badger <bad...@halcyon.com> wrote:
>I have a 386/40, and just got a math coprocessor.  I don't see any 
>noticable speedup in Doom...what's wrong?  Isn't it built to use a 
>coprocessor?  Or did they just use 486-specific code if a 486 is present 
>(or something)?
>
>I kind of expected to see it run nearly as smooth as a friend's slower 
>486, due to raw speed.  Huh?
>

Some motherboards require you set a jumper to let it know it has a co-pro.
Some let you set it in CMOS.  Some autodetect.

If you get any interesting e-mail on this subject, *please* forward it to me.
I'm considering buying a co-pro.

-- 
    /|                          (Reverend) Christopher Bruce Norman
\`o.@'   Ack! Ack! Thbbbpppt!              cbno...@descartes.uwaterloo.ca
=(___)=  				   CS246 Tutor (MC 1014)
   U          "Strip mining prevents forest fires" -- Smokey the Bear

s10...@ee.tut.fi (Anssi Saari) writes:
>What for then? I have no software that uses it, so it'd be wasted money.
>Of course, when upgrade time comes, there probably won't be a 486SX2 or SX3,
>so then I'll have to waste money on the FPU...

>Anssi

	Then when you get a computer with a math-co, you can upgrade your
OS to Linux! Then ALL your math software will use it!

	-Waiting for Linux-Doom!
	-Doctor What

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-------------------------------------------------------------------------------
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  Against heaven's hand or will, nor bate a jot
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  Right onward.
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In article <2hi20r$8...@bigboote.WPI.EDU> jo...@dolphin.WPI.EDU (Joseph W. Vigneau) writes:
>In article <2hhpn8$9...@usenet.rpi.edu>,
>Jason Weiler <wei...@goya.its.rpi.edu> wrote:
>>
>>>From what I hear, a 386 w/ an FPU will kick ass all over a 486 w/o an FPU
>>I've seen DOOM run on a 486DX 33 and it was quite smooth and playable.  If 
>>you don't have an FPU, I'd strongly recommend getting one, and not just for
>>DOOM.
>
>Um, *all* 486s have an FPU built in, except the SXs... Correct me if I'm
                                      ^^^^^^^^^^^^^^
>wrong...

Bullseye.

(Sort of excludes "*all*", doesn't it?)
--
   William Alan Krueger   | kru...@cs.umn.edu, krue...@gold.tc.umn.edu
     Graduate Student     | "I've never been the kind / To close an open mind"
  Computer Science Dept.  |       - "Free Time," Michael Penn
 University of Minnesota  | "Hellllllooooooooooooooo, Nurse!" - Warner Bros.