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- Newsgroups: comp.arch
- Path: sparky!uunet!haven.umd.edu!purdue!decwrl!adobe!usenet
- From: zstern@adobe.com (Zalman Stern)
- Subject: Re: PALcode
- Message-ID: <1992Nov23.204826.16803@adobe.com>
- Sender: usenet@adobe.com (USENET NEWS)
- Organization: Adobe Systems Incorporated
- References: <By2qA1.5z3.2@cs.cmu.edu>
- Date: Mon, 23 Nov 1992 20:48:26 GMT
- Lines: 25
-
- In article <By2qA1.5z3.2@cs.cmu.edu> lindsay+@cs.cmu.edu (Donald Lindsay)
- writes:
- [Discussing Alpha PALcode.]
- > The upside here is that the Alpha could (for example) avoid the
- > strange situation of the 386 power management modes. What's happening
- > is that vendors are adding (incompatible!) features which have to be
- > controlled by some sort of code, and yet the features are supposed to
- > be completely invisible to the OS. Say what?
- >
- > A portable with an Alpha would do power management from PALcode, and
- > there would be some effort to keep each PALcode/OS interface
- > unchanged.
- >
- 1) The 386 has all the features necessary to implement software abstraction
- to handle this situation. If these vendors agreed on the interface and cast
- it into ROM, life would be good.
- 2) If there were five highly competitive companies implementing low-power
- Alpha chips and they all defined different PALcode interfaces you'd have
- exactly the same problem.
-
- So, where's the beef?
- --
- Zalman Stern zalman@adobe.com (415) 962 3824
- Adobe Systems, 1585 Charleston Rd., POB 7900, Mountain View, CA 94039-7900
- "Yeah. Ask 'em if they'll upgrade my shifters too." Bill Watterson
-