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From: | Torbjorn Granlund |
Subject: | Re: [Qemu-ppc] [Qemu-devel] Incorrect handling of more PPC64 insns (PATCH) |
Date: | Wed, 08 May 2013 11:20:48 +0200 |
User-agent: | Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) |
Aurelien Jarno <address@hidden> writes: 64-bit CPUs check for the L bit of comparison instruction to determine if the instruction is 32-bit wide, and not to the MSR SF bit. L=1 on a 32-bit CPU should generate an invalid instruction exception. No. See my previous post. The L bit is to be ignored for 32-bit CPUs, just like the original code did. -- Torbjörn
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