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From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH v14 26/33] target-tilegx: Handle scalar multiply instructions |
Date: | Mon, 31 Aug 2015 22:42:08 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
On 08/30/2015 06:46 AM, Peter Maydell wrote:
On 24 August 2015 at 17:17, Richard Henderson <address@hidden> wrote:Signed-off-by: Richard Henderson <address@hidden> --- target-tilegx/translate.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+)It seems a shame that these are all 32x32->64 multiplies (or in some cases 32x32->32), but we won't actually be able to make use of a host CPU 32x32->64 instruction.
Indeed. For the most part I've been assuming a 64-bit host for all the ports I've been working on recently. At which point it's not really worth doing all of the truncation and extension required to use such insns.
r~
Still, these give the right results I think so Reviewed-by: Peter Maydell <address@hidden> thanks -- PMM
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