home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!olivea!inews.Intel.COM!mipos2!rskinner
- From: rskinner@mipos2.intel.com (Rod Skinner)
- Newsgroups: comp.sys.intel
- Subject: Re: LOADALL and the 486
- Message-ID: <BxA2w6.JB5@inews.Intel.COM>
- Date: 6 Nov 92 04:52:54 GMT
- References: <1992Nov04.155003.25751@apricot.co.uk> <Bx9A8o.I23@watserv1.uwaterloo.ca>
- Sender: news@inews.Intel.COM (USENET News System)
- Organization: Intel Corporation, Santa Clara, CA USA
- Lines: 31
- Nntp-Posting-Host: mipos2
-
- In article <Bx9A8o.I23@watserv1.uwaterloo.ca> ajrooks@mansci1.UWaterloo.ca (Alan Rooks) writes:
- >marcusj@apricot.co.uk (Marcus Jenkins) writes:
- >>I know this may be an FAQ, but I am just a little confused. Is
- >>LOADALL implemented in the 486?
- >
- >[more stuff about LOADALL, asks for email answers]
- >
- >FAQ or no, could someone post or give references for the documented
- >"undocumented" instructions? Someone else mentioned bit-string ops on
- >the 386.
- >
- >Thanks in advance,
- >Alan Rooks University of Waterloo ajrooks@mansci1.uwaterloo.ca
-
- LOADALL is an instruction that was intended for ICE support. The
- early versions of the 80386DX had the instruction available but was
- removed as the die size was reduced. It is still there in the chip that
- accompanies each ICE product. I have not heard differently so I would
- expect that the same is true of the Intel486 CPU family. There is
- a faster sequence of instructions that perform the same function as
- LOADALL which was provided to those using it.
-
- Noone uses it today other than the ICE software (if even that).
-
- rod
-
-
- Rod Skinner I speak for myself only.
- Intel Corp
- 3065 Bowers Avenue MS NW1-20 PH (408) 765-4474
- Santa Clara, CA 95052 FAX (408) 765-4920
-