Due to massive amounts of caffeine & sleep deprivation, jpero_at_cgo.wave.ca
said:
>> 2) I saw several emulators, but the only one I found that actually worked
>> well, the file was called "FRANKE87" and was German in origin. It actually
>> fooled AutoCad 10 into believing there was a co-processor chip on my 386SX
>> and actually did speed up FP instructions (measured with CheckIt).
>Not. Autocad is processor heavy program and better unload that FP to
>that coprocessor result in even powerful system when using the
>suitable s/w like autocad.
Uh, we're both right. I'm at work and don't have much time to type, so I
did not fully state my position. What I meant to way was:
The co-processor emulation software executed FP instructions faster than a
machine could _without_ a co-processor.
IIRC, CheckIt reported ~60,000 Dhrystones (or was that Whetstones -- I
always get them mixed up... FP operations, anyway. :-) with no
co-processor, and ~71,000 Dhrystones with the co-processor software
emulation. Of course, when I added a hardware 80387SX, Checkit reported
just over 1 Million Dhrystones -- so of course the hardware is faster.
Thanks for keeping me honest!
BTW, it is my belief that Autocad is the hardest program to fool into
thinking there's a coproc. when there isn't. The pgm. mentioned is the
_only_ one I'd found, and it didn't work with V.12 or V.13. (I never ran
V.11, so I don't know.) Also, IMHO it is better to be working than not,
even if working very slowly. (And AutoCad V.10 with the emulator wasn't too
bad as long as you stuck with small 2D files. (rendering, of course, would
be an exercise in masochism! ;-)
>Oh, that reminds me, what is your speed rating on these chips?
>I have another system that cantake one as well if the cost is cheap
>and the area is US or Canada.
Dunno -- hafta look. It's sitting in my computer desk at home.
I think I have a couple, tho. I also have a 386DX25, if anyone's
interested. I do like trades, too.
HTH,
"Merch"
--
Roger Merchberger | Why does Hershey's put nutritional
Programmer, NorthernWay | information on their candy bar wrappers
zmerch_at_northernway.net | when there's no nutritional value within?
Received on Mon Oct 20 1997 - 17:25:02 BST