Path: utzoo!attcan!uunet!husc6!mailrus!iuvax!pur-ee!uiucdcs!uxc.cso.uiuc.edu!urbsdc!aglew
From: aglew@urbsdc.Urbana.Gould.COM
Newsgroups: comp.arch
Subject: Re: Branch Delay Annullment
Message-ID: <28200163@urbsdc>
Date: 16 Jun 88 13:39:00 GMT
References: <22065@amdcad.AMD.COM>
Lines: 12
Nf-ID: #R:amdcad.AMD.COM:22065:urbsdc:28200163:000:490
Nf-From: urbsdc.Urbana.Gould.COM!aglew    Jun 16 08:39:00 1988


..> Squashing

Let's see, the full set is squash-never, squash-always,
squash-if-taken, squash-if-not-taken. HP Precision has 
squash-depending-on-sign-of-displacement.

Was just reading the latest IEEE MICRO, with the ARM chip and
its conditions on every instruction. If you are willing to waste
the bits on every instruction, and the condition in the branch
can be evaluated fast enough, then the conditions on every 
instruction give you all the squashing you need in the delay slot(s).