On 01/10/2014 09:12 AM, Peter Maydell wrote: > + if (pos < 64) { > + tcg_resl = do_ext64(s, rn, 1, rn, 0, pos); > + tcg_resh = do_ext64(s, rm, 0, rn, 1, pos); > + } else { > + tcg_resl = do_ext64(s, rm, 0, rn, 1, pos - 64); > + tcg_resh = do_ext64(s, rm, 1, rm, 0, pos - 64); > + }
Perhaps better to pre-load the values before do_ext64? In the first case you're loading rn[1] twice, and in the second rm[0] twice. Otherwise, Reviewed-by: Richard Henderson <r...@twiddle.net> r~