Re: Math coprocessor for PC Transporter?

[Yves McDonald <""yves.mcdonald\"@NO SPAM sympatico.ca>]

Oooh, maybe MS Flight Simulator 3 used it... or was it special 80386 
instructions?  Can't remember.  It is a good compatibility test anyway.


bill malcolm wrote:

> OK I dug out my old Intel books AND
> the pin out is much different on 8087 and 80287
> book 1984  oct
> 8087 on page  3-175
> 80278  on page 4-54
>
> bill ..
>
> PostScript
>
> Did you know that 8087 is 100 times faster then math on 8086/88
> You would need application that know about it. Lotus,  Microsoft Quick C , these
> I know of.
>
>
>
> Herbert Fung wrote:
>
>
> > Since I don't know much about older PC hardware I wanted to ask if anyone
> > knew what chips are compatible for the math co-processor socket on a PC. I
> > understand that an 8087 is intended, but I'm wondering what else would work.
> >
> > I manged to find a D80287-10 and it's pin compatible, but I wanted to see if
> > anyone knew if it was safe to use.