From mboxrd@z Thu Jan  1 00:00:00 1970
From: cowan@mercury.ccil.org (John Cowan)
Date: Sun, 3 Jan 2016 19:00:20 -0500
Subject: [TUHS] Early Unix function calls: expensive?
In-Reply-To: <20160103233543.GA10102@minnie.tuhs.org>
References: <20160103233543.GA10102@minnie.tuhs.org>
Message-ID: <20160104000017.GC1602@mercury.ccil.org>

Warren Toomey scripsit:

>      VAX code was often spending 50% of its time in the CALLS
>      instruction.

>From what I understand, the use of CALLS was abandoned on the VAX
at some point in favor of a cheaper calling convention.

-- 
John Cowan          http://www.ccil.org/~cowan        cowan at ccil.org
Where the wombat has walked, it will inevitably walk again.
   (even through brick walls!)