From: Joern Rennecke <joern.rennecke@superh.com>
To: msnyder@redhat.com (Michael Snyder)
Cc: amylaar@fairadsl.co.uk (Joern Rennecke),
joern.rennecke@superh.com, gdb-patches@sources.redhat.com
Subject: Re: [RFA] sh-sim loose ends
Date: Thu, 12 Feb 2004 22:39:00 -0000 [thread overview]
Message-ID: <200402122239.i1CMdJK12072@linsvr1.uk.superh.com> (raw)
In-Reply-To: <402BF664.1060508@redhat.com> from "Michael Snyder" at Feb 12, 2004 01:55:48
> * gencode.c (movt): Modifies R[n]; call 'L' macro.
That doesn't make sense, 'L' simulates the data read memory latency of an
SH[123]. movt doesn't incur such a latency.
> (trapa): Factor out duplicate variable 'imm' (same as 'i').
OK. But I don't see why you need the cast to long.
> (sleep, trapa, ppi): Use SET_NIP to modify nip.
I don't see any need for this. RAISE_EXCEPTION already clears
saved_state.asregs.insn_end , so that takes care of the
exceptions that might arise during sleep.
For trapa, that leaves just the possibility that we fail to miss a
loop bound that is set to somewhere inside a profiler trap; I think
you deserve whatever you get when you do that.
Similar for ppi; are you afrais that we fail to miss a loop bound
that is set to field_b of a ppi insn?
next prev parent reply other threads:[~2004-02-12 22:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-12 21:56 Michael Snyder
2004-02-12 22:39 ` Joern Rennecke [this message]
2004-02-12 23:52 ` Michael Snyder
2004-02-13 12:29 ` Joern Rennecke
2004-02-13 19:17 ` Michael Snyder
2004-02-14 4:48 ` Joern Rennecke
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