| To: | Jun Sun <jsun@mvista.com> |
|---|---|
| Subject: | Re: when does do_fpe() get called? (or when does FPE happen?) |
| From: | Ralf Baechle <ralf@linux-mips.org> |
| Date: | Tue, 28 Jan 2003 04:37:44 +0100 |
| Cc: | linux-mips@linux-mips.org |
| In-reply-to: | <20030127190423.U11633@mvista.com>; from jsun@mvista.com on Mon, Jan 27, 2003 at 07:04:23PM -0800 |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <20030127190423.U11633@mvista.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mutt/1.2.5.1i |
On Mon, Jan 27, 2003 at 07:04:23PM -0800, Jun Sun wrote: > Can someone enlighten me a little? I am trying > to figure out what the FPU state should be (or can be) when > we are inside do_fpe() routine. Checkout the various flags in $fcr31. Whenever one of the enabled exceptions is triggered we get to handle_fpe via do_fpe. In addition the unimplemented exception can also result in invocation of do_fpe. Ralf |
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