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- From: sundaram@eecae.msu.edu
- Newsgroups: comp.sys.intel
- Subject: Idea for the P5!
- Message-ID: <1992Nov18.203321.18612@msuinfo.cl.msu.edu>
- Date: 18 Nov 92 20:33:21 GMT
- Sender: news@msuinfo.cl.msu.edu
- Distribution: usa
- Organization: Michigan State University, College of Engineering
- Lines: 43
- Originator: sundaram@eecae.ee.msu.edu
-
-
- Hi y'all,
-
- I had a couple of ideas for how Intel could keep backward compatibility with
- its 80x86 line of processors without having to dedicate a small part of the
- P5 to emulating 80[3|4]86 code.
-
- Instead of devoting part of the die to emulate 80x86 code, why not include some
- instructions that will allow the P5 to act as a master processor to a true
- (or slightly modified) 80x86 chip.
-
-
- So, if you run a program run for the 386 on the P5, it will "make" the
- 386 execute them instead and can handle other tasks. The idea is similar
- to the DOS VDM's in IBM's OS/2. These VDM's can run most DOS 5.0 apps,
- but the "OS" they run is not DOS 5.0. Similarly, this chip will not
- quite be a true 486 but one slightly hacked to allow it to co-operate
- with the P5 and work with it as a slave processor. This MAY include
- some incompatibilities with existing software, but these can be
- virtually eliminated by intelligent design etc. Moreover, this will
- allow users to keep their old 80x86 based software while allowing them
- to step up to the P5 (or the P6, P7 .... ) and its advanced features
- and superior performance. The P5 could be sold independently, so that
- users who need x86 compsatibility can "upgrade" to it when necessary.
- Also, motherboards for the P5 could have a built in socket for the
- 486 compatible (intel) micro-(co)-processor.
-
- OK, This mirror's OS/2 2.0 's setup quite closely, where DOS/Windows
- support is optional and some programs (like WPWIN 5.1) need to be
- "fixed" before being able to run under a WINOS2 session. However, the
- setup does provide for compatibility with over 95% of the DOS software
- out there. Could this be done for the P5?
-
-
- Voila!
-
- Now, don't flame me. This is just an idea. I do not know how feasible this is
- going to be. I will let you decide.
-
- Later y'all
-
- Divya
- (sundaram@egr.msu.edu)
-