From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pippin.tausq.org (gandalf.tausq.org [64.81.244.94]) by dsl2.external.hp.com (Postfix) with ESMTP id E38A24829 for ; Wed, 11 Dec 2002 23:46:59 -0700 (MST) Date: Wed, 11 Dec 2002 22:50:59 -0800 From: Randolph Chung To: John David Anglin Cc: Carlos O'Donell , bdale@gag.com, parisc-linux@parisc-linux.org Subject: Re: [parisc-linux] ["CSA Test Drive" ] FW: Some issues Message-ID: <20021212065059.GQ21187@tausq.org> Reply-To: Randolph Chung References: <20021211224404.GC15219@systemhalted> <200212112305.gBBN5Bdj021432@hiauly1.hia.nrc.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <200212112305.gBBN5Bdj021432@hiauly1.hia.nrc.ca> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: > The code doesn't seem to trap on a A500 which I believe is a PA8500. > I think we need to look at bits 0..1 of the coprocessor configuration > register to determine instruction validity. See table 8-6 on page 8-11. it does cause a trap actually, we just don't usually print it. FP assist exception at 0x10433 FP VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI -> 00000000000000000000000001000000 i'm confused tho because that iaoq doesn't point where i thought it might point. is this because of delayed exceptions? (oh, as an aside, looks like there's a small objdump bug :-) 00010428 : 10428: 0f d9 12 81 stw r25,-10(sr0,sp) 1042c: 0f da 12 89 stw r26,-c(sr0,sp) 10430: 2f c1 10 16 fldd -10(sr0,sp),fr22 10434: e8 40 d0 00 bve (rp) 10438: 32 c2 aa 04 fcnv Disassembler botch. (should be fcnv,udw,dbl %fr22,%fr4) randolph -- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/