Path: utzoo!attcan!uunet!portal!cup.portal.com!Paul_L_Schauble
From: Paul_L_Schauble@cup.portal.com
Newsgroups: comp.arch
Subject: Re: Execute instructions
Message-ID: <7560@cup.portal.com>
Date: 22 Jul 88 05:14:55 GMT
References: <11588@steinmetz.ge.com>
Organization: The Portal System (TM)
Lines: 14
XPortal-User-Id: 1.1001.3295

>> Subroutine linkage via XED instruction.

Well, I can speak for current GE/Honeywell/Bull machines. The sequence using
XED no longer works. It seems that funny things happen if one of the
instruction executed takes a page fault.

This is giving us problems. Having the procedure call that uses no register
is VERY useful.

I don't know of any other machines that have XED. Many to have XEC or
execute remote in one fashion or another: Univac 1100 series, IBM 360/370
series.

    Paul