Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.arch
Subject: Re: Tahoe calls (was: bizarre instructions) (was: Re: Submission for news)
Message-ID: <6689@auspex.auspex.com>
Date: 16 Mar 91 20:18:59 GMT
References: <9103121448.AA03520@shum.huji.ac.il>
Organization: Auspex Systems, Santa Clara
Lines: 10


 >Actually, the Tahoe (designed in 1982, BTW) has two call-subroutine
 >instructions: CALLS (call slow) which works more or less like the VAX's,
 >and CALLF (call fast), which is probably what is measured here. ...
 >
 >All this makes CALLF a very useful tool indeed: while on the whole, the
 >Tahoe is about 8-10 times as fast as a VAX780, subroutine call is 22 times
 >faster!

As I remember, even CALLS was faster than the VAX's CALLS instruction.