From: "Torbjörn Andersson" <tobbe.tt@home.se>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Bug: ARM Multiple Load (Thumb)
Date: Mon, 31 Mar 2008 20:11:29 +0200 [thread overview]
Message-ID: <000b01c8935a$a50ef620$ef2ce260$@tt@home.se> (raw)
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During data exceptions the following scenario fails
LDM R0, {R0 R1} // where the first word is read in page X and the second in
page x+1
R0 is then updated with the loaded value and the instruction cannot be
“replayed” when the exception handler has updated the MMU. The fix is
trivial, just store the R0 value in T2 until all other loads have been
performed. I have a fix for the old non-tcg code but it does not seem
relevant anymore. (Paul: Great work with TCG, looking forward to test it
soon)
Best Regards
Torbjörn
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reply other threads:[~2008-03-31 18:11 UTC|newest]
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