btx decode fix on x86_64
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1796 c046a42c-6fe2-441c-8c8c-71466251a162
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@ -5085,7 +5085,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
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case 0x1ba: /* bt/bts/btr/btc Gv, im */
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ot = dflag + OT_WORD;
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modrm = ldub_code(s->pc++);
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op = ((modrm >> 3) & 7) | rex_r;
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op = (modrm >> 3) & 7;
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mod = (modrm >> 6) & 3;
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rm = (modrm & 7) | REX_B(s);
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if (mod != 3) {
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