I recently found the following abbreviation:
'NPX chips'
in
Intel(R) 64 and IA-32 Architectures Software Developer's Manual Volume 1: Basic Architecture
Order Number: 253665-044US
August 2012
and my question is what does NPX abbreviation stand for?
[ Details ]
Take a look at a page 338:
...Intel 387 and Intel 287 math coprocessors (NPX chips)...
I was able to find only this sentence taken from the Pentium manual
"To determine whether an FPU or NPX is present in a system, applications can write to the FPU/
NPX status and control registers using the FNINIT instruction and then verify the correct values
are read back using the FNSTENV instruction"
I have found what does that abbreviation stand for.NPX is "Numeric Processor Extension". I provide also link to the pdf with further explanation (google search) : http://www.google.pl/url?sa=t&rct=j&q=intel%20287%20math%20coprocessors%20(npx%20chips)&source=web&cd=5&cad=rja&ved=0CEwQFjAE&url=http%3A%2F%2Fdatasheets.chipdb.org%2FIntel%2Fx86%2F287%2Fdatashts%2F210920-008.pdf&ei=C5MUUbSNCqOmigLyj4GoCw&usg=AFQjCNFZs_XanuFrB4CuAT4Z8dcqYBI4iger
Sorry for the off topic, but my posts are still queued for the admin approval.
I have found the exact meaning of the NPX abbreviation "Numeric Processor Extension". I also pasted a short excerpt from the Intel 287 coprocessor.I also posted the google search link , but my post is queued for approval.
"80286 .... The 80287 Numeric Processor Extension (NPX) pro- ... 287 Speed CLK Speed "
>>...Numeric Processor Extension...
Thanks! It looks like a very old term possibly no longer used.
>>>Thanks! It looks like a very old term possibly no longer used>>>
You are welcome.
This term is from the time period of 286 and 386 microarchitecture.