Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!purdue!decwrl!shelby!polya!gilham
From: gilham@polya.Stanford.EDU (Fred Gilham)
Newsgroups: comp.sys.amiga
Subject: Re: shared/loaded libraries vs. resident
Message-ID: <8635@polya.Stanford.EDU>
Date: 20 Apr 89 20:50:08 GMT
References: <13492@louie.udel.EDU>
Sender: Fred Gilham <gilham@polya.Stanford.EDU>
Reply-To: gilham@polya.Stanford.EDU (Fred Gilham)
Organization: Stanford University
Lines: 21

In article <13492@louie.udel.EDU> MROBINSON@wash-vax.bbn.com writes:
>
>Other than just general interest, I was thinking about writing an editor,
>and in the far future worrying about making it resident, or making the
>kernel a shared library.


I've thought about this as a solution to the problem of running
compiled lisp code in a lisp environment.  How does the compiled code
figure out where the builtins in the lisp interpreter are?  Certainly
you don't want to have the code for car or print or whatever in every
compiled program.  So just have everyone call a shared lisp-kernel
library.

The thing that concerns me about this is the performance hit.  I read
somewhere that the cost of a library call is about 100us.  You really
can't do anything about this, either; no optimization possible.  The
cost of a procedure call should be smaller (right?).

I hope I'm not spouting nonsense...
-Fred Gilham